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annotate src/luan/interp/LuanParser.java @ 148:dfd0f33b584e

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minor parser fix git-svn-id: https://luan-java.googlecode.com/svn/trunk@149 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Mon, 16 Jun 2014 04:29:33 +0000
parents 3b384dc5ca91
children f99fd64291b3
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1 package luan.interp;
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2
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3 import java.util.Set;
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4 import java.util.HashSet;
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5 import java.util.Arrays;
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6 import java.util.List;
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7 import java.util.ArrayList;
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8 import java.util.Scanner;
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9 import luan.Luan;
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10 import luan.LuanState;
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11 import luan.LuanSource;
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12 import luan.parser.Parser;
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13 import luan.parser.ParseException;
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16 final class LuanParser {
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18 private static final class Frame {
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19 final Frame parent;
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20 final List<String> symbols = new ArrayList<String>();
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21 int stackSize = 0;
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22 int loops = 0;
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23 boolean isVarArg = false;
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24 final List<String> upValueSymbols = new ArrayList<String>();
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25 final List<UpValue.Getter> upValueGetters = new ArrayList<UpValue.Getter>();
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27 Frame(UpValue.Getter envGetter) {
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28 this.parent = null;
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29 upValueSymbols.add(_ENV);
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30 upValueGetters.add(envGetter);
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31 }
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33 Frame(Frame parent) {
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34 this.parent = parent;
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35 if( upValueIndex(_ENV) != 0 )
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36 throw new RuntimeException();
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37 }
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39 int stackIndex(String name) {
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40 int i = symbols.size();
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41 while( --i >= 0 ) {
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42 if( symbols.get(i).equals(name) )
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43 return i;
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44 }
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45 return -1;
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46 }
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47
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48 int upValueIndex(String name) {
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49 int i = upValueSymbols.size();
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50 while( --i >= 0 ) {
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51 if( upValueSymbols.get(i).equals(name) )
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52 return i;
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53 }
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54 if( parent==null )
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55 return -1;
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56 i = parent.stackIndex(name);
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57 if( i != -1 ) {
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58 upValueGetters.add(new UpValue.StackGetter(i));
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59 } else {
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60 i = parent.upValueIndex(name);
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61 if( i == -1 )
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62 return -1;
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63 upValueGetters.add(new UpValue.NestedGetter(i));
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64 }
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65 upValueSymbols.add(name);
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66 return upValueSymbols.size() - 1;
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67 }
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69 void addUpValueGetter(String name,UpValue.Getter upValueGetter) {
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70 upValueSymbols.add(name);
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71 upValueGetters.add(upValueGetter);
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72 }
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73 }
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74
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75 private static class In {
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76 static final In NOTHING = new In(false,false);
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78 final boolean parens;
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79 final boolean jsp;
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81 private In(boolean parens,boolean jsp) {
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82 this.parens = parens;
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83 this.jsp = jsp;
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84 }
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85
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86 In parens() {
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87 return parens ? this : new In(true,jsp);
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88 }
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89
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90 In jsp() {
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91 return jsp ? this : new In(parens,true);
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92 }
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93 }
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95 private static final String _ENV = "_ENV";
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96 private static final UpValue.Getter[] NO_UP_VALUE_GETTERS = new UpValue.Getter[0];
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97
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98 final LuanSource source;
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99 private Frame frame;
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100 private final Parser parser;
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101 private final boolean interactive;
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102
108
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103 LuanParser(LuanSource source,UpValue.Getter envGetter) {
86
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104 this.source = source;
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105 this.frame = new Frame(envGetter);
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106 this.parser = new Parser(source);
108
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107 this.interactive = envGetter==UpValue.globalGetter;
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108 }
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109
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110 void addVar(String name,Object value) {
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111 frame.addUpValueGetter(name,new UpValue.ValueGetter(value));
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112 }
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113
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114 private LuanSource.Element se(int start) {
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115 return new LuanSource.Element(source,start,parser.currentIndex());
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116 }
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117
104
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118 private List<String> symbols() {
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119 return frame.symbols;
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120 }
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121
104
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122 private int symbolsSize() {
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123 return frame.symbols.size();
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124 }
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125
104
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126 private void addSymbol(String name) {
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127 frame.symbols.add(name);
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128 if( frame.stackSize < symbolsSize() )
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129 frame.stackSize = symbolsSize();
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130 }
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131
104
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132 private void addSymbols(List<String> names) {
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133 frame.symbols.addAll(names);
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134 if( frame.stackSize < symbolsSize() )
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135 frame.stackSize = symbolsSize();
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136 }
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137
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138 private int stackIndex(String name) {
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139 return frame.stackIndex(name);
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140 }
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141
104
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142 private void popSymbols(int n) {
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143 List<String> symbols = frame.symbols;
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144 while( n-- > 0 ) {
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145 symbols.remove(symbols.size()-1);
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146 }
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147 }
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148
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149 private int upValueIndex(String name) {
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150 return frame.upValueIndex(name);
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151 }
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152
104
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153 private void incLoops() {
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154 frame.loops++;
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155 }
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156
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157 private void decLoops() {
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158 frame.loops--;
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159 }
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160
104
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161 private <T> T required(T t) throws ParseException {
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162 if( t==null )
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163 throw parser.exception();
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164 return t;
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165 }
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166
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167 private <T> T required(T t,String msg) throws ParseException {
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168 if( t==null )
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169 throw parser.exception(msg);
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170 return t;
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171 }
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172
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173 private static Expr expr(Code code) {
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174 if( code instanceof Expressions )
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175 return new ExpressionsExpr((Expressions)code);
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176 return (Expr)code;
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177 }
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178
104
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179 private FnDef newFnDef(int start,Stmt stmt) {
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180 return new FnDef( se(start), stmt, frame.stackSize, symbolsSize(), frame.isVarArg, frame.upValueGetters.toArray(NO_UP_VALUE_GETTERS) );
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181 }
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182
108
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183 FnDef Expressions() throws ParseException {
129
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184 Spaces(In.NOTHING);
104
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185 int start = parser.begin();
129
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186 Expressions exprs = ExpList(In.NOTHING);
104
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187 if( exprs != null && parser.endOfInput() ) {
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188 Stmt stmt = new ReturnStmt( se(start), exprs );
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189 return parser.success(newFnDef(start,stmt));
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190 }
108
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191 return parser.failure(null);
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192 }
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193
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194 FnDef RequiredModule() throws ParseException {
129
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195 Spaces(In.NOTHING);
108
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196 int start = parser.begin();
104
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197 frame.isVarArg = true;
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198 Stmt stmt = RequiredBlock();
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199 if( parser.endOfInput() )
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200 return parser.success(newFnDef(start,stmt));
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201 throw parser.exception();
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202 }
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203
104
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204 private Stmt RequiredBlock() throws ParseException {
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205 List<Stmt> stmts = new ArrayList<Stmt>();
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206 int stackStart = symbolsSize();
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207 Stmt(stmts);
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208 while( StmtSep(stmts) ) {
129
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209 Spaces(In.NOTHING);
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210 Stmt(stmts);
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211 }
21
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212 int stackEnd = symbolsSize();
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213 popSymbols( stackEnd - stackStart );
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214 if( stmts.isEmpty() )
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215 return Stmt.EMPTY;
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216 if( stmts.size()==1 && stackStart==stackEnd )
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217 return stmts.get(0);
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218 return new Block( stmts.toArray(new Stmt[0]), stackStart, stackEnd );
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219 }
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220
104
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221 private boolean StmtSep(List<Stmt> stmts) throws ParseException {
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222 parser.begin();
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223 if( parser.match( ';' ) )
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224 return parser.success();
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225 if( parser.match( "--" ) ) {
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226 while( parser.noneOf("\r\n") );
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227 }
107
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228 return EndOfLine() ? parser.success() : parser.failure();
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229 }
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230
104
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231 private boolean EndOfLine() {
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232 return parser.match( "\r\n" ) || parser.match( '\r' ) || parser.match( '\n' );
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233 }
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234
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235 private void Stmt(List<Stmt> stmts) throws ParseException {
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236 if( LocalStmt(stmts) )
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237 return;
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238 Stmt stmt;
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239 if( (stmt=ReturnStmt()) != null
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240 || (stmt=FunctionStmt()) != null
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241 || (stmt=LocalFunctionStmt()) != null
108
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242 || (stmt=ImportStmt()) != null
104
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243 || (stmt=BreakStmt()) != null
127
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244 || (stmt=ForStmt()) != null
104
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245 || (stmt=TryStmt()) != null
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246 || (stmt=DoStmt()) != null
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247 || (stmt=WhileStmt()) != null
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248 || (stmt=FunctionStmt()) != null
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249 || (stmt=RepeatStmt()) != null
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250 || (stmt=IfStmt()) != null
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251 || (stmt=SetStmt()) != null
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252 || (stmt=ExpressionsStmt()) != null
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253 ) {
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254 stmts.add(stmt);
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255 }
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256 }
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257
129
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258 private Expressions JspExpressions(In in) throws ParseException {
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259 if( in.jsp )
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260 return null;
104
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261 int start = parser.begin();
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262 if( !parser.match( "%>" ) )
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263 return parser.failure(null);
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264 EndOfLine();
129
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265 In inJsp = in.jsp();
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266 ExpList.Builder builder = new ExpList.Builder();
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267 while(true) {
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268 if( parser.match( "<%=" ) ) {
129
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269 Spaces(inJsp);
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270 builder.add( RequiredExpr(inJsp) );
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271 RequiredMatch( "%>" );
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272 } else if( parser.match( "<%" ) ) {
129
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273 Spaces(inJsp);
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274 return parser.success(builder.build());
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275 } else {
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276 int i = parser.currentIndex();
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277 do {
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278 if( parser.match( "%>" ) )
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279 throw parser.exception("'%>' unexpected");
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280 if( !parser.anyChar() )
107
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281 throw parser.exception("Unclosed JSP expressions");
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282 } while( !parser.test( "<%" ) );
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283 String match = parser.textFrom(i);
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284 builder.add( new ConstExpr(match) );
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285 }
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286 }
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287 }
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288
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289 private Stmt ReturnStmt() throws ParseException {
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290 int start = parser.begin();
129
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291 if( !Keyword("return",In.NOTHING) )
104
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292 return parser.failure(null);
129
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293 Expressions exprs = ExpList(In.NOTHING);
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294 if( exprs==null )
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295 exprs = ExpList.emptyExpList;
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296 return parser.success( new ReturnStmt(se(start),exprs) );
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297 }
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298
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299 private Stmt FunctionStmt() throws ParseException {
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300 parser.begin();
129
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301 if( !Keyword("function",In.NOTHING) )
104
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302 return parser.failure(null);
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303
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304 int start = parser.currentIndex();
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305 Var var = nameVar(start,RequiredName(In.NOTHING));
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306 while( parser.match( '.' ) ) {
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307 Spaces(In.NOTHING);
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308 var = indexVar( start, expr(var.expr()), NameExpr(In.NOTHING) );
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309 }
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310 Settable fnName = var.settable();
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311
129
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312 FnDef fnDef = RequiredFunction(In.NOTHING);
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313 return parser.success( new SetStmt(fnName,fnDef) );
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314 }
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315
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316 private Stmt LocalFunctionStmt() throws ParseException {
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317 parser.begin();
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318 if( !(Keyword("local",In.NOTHING) && Keyword("function",In.NOTHING)) )
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319 return parser.failure(null);
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320 String name = RequiredName(In.NOTHING);
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321 addSymbol( name );
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322 FnDef fnDef = RequiredFunction(In.NOTHING);
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323 return parser.success( new SetStmt( new SetLocalVar(symbolsSize()-1), fnDef ) );
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324 }
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325
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326 private Stmt ImportStmt() throws ParseException {
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327 int start = parser.begin();
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328 if( !Keyword("import",In.NOTHING) )
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329 return parser.failure(null);
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330 Expr importExpr = (Expr)nameVar(start,"require").expr();
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331 String modName = StringLiteral(In.NOTHING);
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332 if( modName==null )
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333 return parser.failure(null);
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334 String varName = modName.substring(modName.lastIndexOf('.')+1);
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335 LuanSource.Element se = se(start);
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336 FnCall require = new FnCall( se, importExpr, new ExpList.SingleExpList(new ConstExpr(modName)) );
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337 Settable settable;
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338 if( interactive ) {
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339 settable = new SetTableEntry( se(start), env(), new ConstExpr(varName) );
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340 } else {
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341 addSymbol( varName );
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342 settable = new SetLocalVar(symbolsSize()-1);
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343 }
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344 return parser.success( new SetStmt( settable, expr(require) ) );
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345 }
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346
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347 private Stmt BreakStmt() throws ParseException {
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348 parser.begin();
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349 if( !Keyword("break",In.NOTHING) )
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350 return parser.failure(null);
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351 if( frame.loops <= 0 )
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352 throw parser.exception("'break' outside of loop");
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353 return parser.success( new BreakStmt() );
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354 }
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355
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356 private Stmt ForStmt() throws ParseException {
104
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357 int start = parser.begin();
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358 int stackStart = symbolsSize();
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359 if( !Keyword("for",In.NOTHING) )
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360 return parser.failure(null);
129
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361 List<String> names = RequiredNameList(In.NOTHING);
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362 if( !Keyword("in",In.NOTHING) )
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363 return parser.failure(null);
129
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364 Expr expr = expr(RequiredExpr(In.NOTHING));
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365 RequiredKeyword("do",In.NOTHING);
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366 addSymbols(names);
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367 Stmt loop = RequiredLoopBlock();
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368 RequiredKeyword("end",In.NOTHING);
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369 Stmt stmt = new ForStmt( se(start), stackStart, symbolsSize() - stackStart, expr, loop );
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370 popSymbols( symbolsSize() - stackStart );
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371 return parser.success(stmt);
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372 }
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373
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374 private Stmt TryStmt() throws ParseException {
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375 parser.begin();
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376 if( !Keyword("try",In.NOTHING) )
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377 return parser.failure(null);
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378 Stmt tryBlock = RequiredBlock();
129
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379 RequiredKeyword("catch",In.NOTHING);
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380 String name = RequiredName(In.NOTHING);
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381 addSymbol(name);
129
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382 RequiredKeyword("do",In.NOTHING);
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383 Stmt catchBlock = RequiredBlock();
129
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384 RequiredKeyword("end",In.NOTHING);
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385 Stmt stmt = new TryStmt( tryBlock, symbolsSize()-1, catchBlock );
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386 popSymbols(1);
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387 return parser.success(stmt);
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388 }
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389
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390 private Stmt DoStmt() throws ParseException {
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391 parser.begin();
129
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392 if( !Keyword("do",In.NOTHING) )
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393 return parser.failure(null);
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394 Stmt stmt = RequiredBlock();
129
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395 RequiredKeyword("end",In.NOTHING);
104
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396 return parser.success(stmt);
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397 }
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398
104
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399 private boolean LocalStmt(List<Stmt> stmts) throws ParseException {
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400 parser.begin();
129
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diff changeset
401 if( !Keyword("local",In.NOTHING) )
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402 return parser.failure();
129
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403 List<String> names = NameList(In.NOTHING);
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404 if( names==null )
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405 return parser.failure();
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406 if( parser.match( '=' ) ) {
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407 Spaces(In.NOTHING);
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408 Expressions values = ExpList(In.NOTHING);
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diff changeset
409 if( values==null )
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diff changeset
410 throw parser.exception("Expressions expected");
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411 SetLocalVar[] vars = new SetLocalVar[names.size()];
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diff changeset
412 int stackStart = symbolsSize();
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diff changeset
413 for( int i=0; i<vars.length; i++ ) {
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414 vars[i] = new SetLocalVar(stackStart+i);
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415 }
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416 stmts.add( new SetStmt( vars, values ) );
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417 }
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418 addSymbols(names);
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419 return parser.success();
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420 }
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421
129
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422 private List<String> RequiredNameList(In in) throws ParseException {
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423 parser.begin();
129
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424 List<String> names = NameList(in);
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425 if( names==null )
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426 throw parser.exception("Name expected");
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427 return parser.success(names);
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428 }
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diff changeset
429
129
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430 private List<String> NameList(In in) throws ParseException {
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431 String name = Name(in);
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432 if( name==null )
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433 return null;
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434 List<String> names = new ArrayList<String>();
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435 names.add(name);
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436 while( (name=anotherName(in)) != null ) {
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437 names.add(name);
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438 }
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439 return names;
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440 }
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441
139
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diff changeset
442 private String anotherName(In in) throws ParseException {
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diff changeset
443 parser.begin();
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diff changeset
444 if( !parser.match( ',' ) )
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445 return parser.failure(null);
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diff changeset
446 Spaces(in);
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447 String name = Name(in);
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diff changeset
448 if( name==null )
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449 return parser.failure(null);
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450 return parser.success(name);
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diff changeset
451 }
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diff changeset
452
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diff changeset
453 private Stmt WhileStmt() throws ParseException {
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diff changeset
454 parser.begin();
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455 if( !Keyword("while",In.NOTHING) )
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456 return parser.failure(null);
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457 Expr cnd = expr(RequiredExpr(In.NOTHING));
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458 RequiredKeyword("do",In.NOTHING);
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459 Stmt loop = RequiredLoopBlock();
129
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460 RequiredKeyword("end",In.NOTHING);
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461 return parser.success( new WhileStmt(cnd,loop) );
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diff changeset
462 }
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diff changeset
463
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diff changeset
464 private Stmt RepeatStmt() throws ParseException {
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diff changeset
465 parser.begin();
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466 if( !Keyword("repeat",In.NOTHING) )
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diff changeset
467 return parser.failure(null);
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468 Stmt loop = RequiredLoopBlock();
129
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diff changeset
469 RequiredKeyword("until",In.NOTHING);
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470 Expr cnd = expr(RequiredExpr(In.NOTHING));
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diff changeset
471 return parser.success( new RepeatStmt(loop,cnd) );
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diff changeset
472 }
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diff changeset
473
104
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diff changeset
474 private Stmt RequiredLoopBlock() throws ParseException {
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diff changeset
475 incLoops();
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diff changeset
476 Stmt stmt = RequiredBlock();
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diff changeset
477 decLoops();
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diff changeset
478 return stmt;
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diff changeset
479 }
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diff changeset
480
104
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diff changeset
481 private Stmt IfStmt() throws ParseException {
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diff changeset
482 parser.begin();
129
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diff changeset
483 if( !Keyword("if",In.NOTHING) )
104
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diff changeset
484 return parser.failure(null);
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parents: 99
diff changeset
485 return parser.success( IfStmt2() );
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diff changeset
486 }
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diff changeset
487
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diff changeset
488 private Stmt IfStmt2() throws ParseException {
129
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diff changeset
489 Expr cnd = expr(RequiredExpr(In.NOTHING));
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diff changeset
490 RequiredKeyword("then",In.NOTHING);
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diff changeset
491 Stmt thenBlock = RequiredBlock();
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diff changeset
492 Stmt elseBlock;
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diff changeset
493 if( Keyword("elseif",In.NOTHING) ) {
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diff changeset
494 elseBlock = IfStmt2();
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diff changeset
495 } else {
129
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diff changeset
496 elseBlock = Keyword("else",In.NOTHING) ? RequiredBlock() : Stmt.EMPTY;
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diff changeset
497 RequiredKeyword("end",In.NOTHING);
104
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diff changeset
498 }
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diff changeset
499 return new IfStmt(cnd,thenBlock,elseBlock);
20
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500 }
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diff changeset
501
104
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diff changeset
502 private Stmt SetStmt() throws ParseException {
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diff changeset
503 parser.begin();
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parents: 99
diff changeset
504 List<Settable> vars = new ArrayList<Settable>();
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diff changeset
505 Settable s = SettableVar();
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diff changeset
506 if( s == null )
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diff changeset
507 return parser.failure(null);
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diff changeset
508 vars.add(s);
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diff changeset
509 while( parser.match( ',' ) ) {
129
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diff changeset
510 Spaces(In.NOTHING);
104
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diff changeset
511 s = SettableVar();
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diff changeset
512 if( s == null )
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diff changeset
513 return parser.failure(null);
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diff changeset
514 vars.add(s);
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diff changeset
515 }
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diff changeset
516 if( !parser.match( '=' ) )
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diff changeset
517 return parser.failure(null);
129
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diff changeset
518 Spaces(In.NOTHING);
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diff changeset
519 Expressions values = ExpList(In.NOTHING);
104
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diff changeset
520 if( values==null )
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diff changeset
521 throw parser.exception("Expressions expected");
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diff changeset
522 return parser.success( new SetStmt( vars.toArray(new Settable[0]), values ) );
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diff changeset
523 }
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diff changeset
524
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diff changeset
525 private Stmt ExpressionsStmt() throws ParseException {
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diff changeset
526 parser.begin();
129
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diff changeset
527 Expressions exprs = ExpList(In.NOTHING);
104
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diff changeset
528 if( exprs==null )
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diff changeset
529 return parser.failure(null);
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
530 return parser.success( new ExpressionsStmt(exprs) );
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parents: 99
diff changeset
531 }
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parents: 99
diff changeset
532
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diff changeset
533 private Settable SettableVar() throws ParseException {
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parents: 99
diff changeset
534 int start = parser.begin();
129
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diff changeset
535 Var var = VarZ(In.NOTHING);
104
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diff changeset
536 if( var==null )
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parents: 99
diff changeset
537 return null;
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diff changeset
538 return var.settable();
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parents: 99
diff changeset
539 }
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parents: 99
diff changeset
540
129
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diff changeset
541 private Code RequiredExpr(In in) throws ParseException {
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diff changeset
542 parser.begin();
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diff changeset
543 return parser.success(required(Expr(in),"Bad expression"));
104
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diff changeset
544 }
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diff changeset
545
129
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diff changeset
546 private Code Expr(In in) throws ParseException {
104
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diff changeset
547 parser.begin();
107
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diff changeset
548 Code exp;
129
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diff changeset
549 return (exp = VarArgs(in)) != null
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diff changeset
550 || (exp = JspExpressions(in)) != null
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diff changeset
551 || (exp = OrExpr(in)) != null
107
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diff changeset
552 ? parser.success(exp)
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
553 : parser.failure((Code)null)
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parents: 106
diff changeset
554 ;
19
a7c13c6017f7 add GenericForStmt
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parents: 18
diff changeset
555 }
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parents: 18
diff changeset
556
129
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diff changeset
557 private Code OrExpr(In in) throws ParseException {
104
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diff changeset
558 int start = parser.begin();
129
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diff changeset
559 Code exp = AndExpr(in);
104
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diff changeset
560 if( exp==null )
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diff changeset
561 return parser.failure(null);
129
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diff changeset
562 while( Keyword("or",in) ) {
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diff changeset
563 exp = new OrExpr( se(start), expr(exp), required(expr(AndExpr(in))) );
104
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diff changeset
564 }
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parents: 99
diff changeset
565 return parser.success(exp);
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parents: 99
diff changeset
566 }
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diff changeset
567
129
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diff changeset
568 private Code AndExpr(In in) throws ParseException {
104
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diff changeset
569 int start = parser.begin();
129
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diff changeset
570 Code exp = RelExpr(in);
104
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diff changeset
571 if( exp==null )
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diff changeset
572 return parser.failure(null);
129
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diff changeset
573 while( Keyword("and",in) ) {
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diff changeset
574 exp = new AndExpr( se(start), expr(exp), required(expr(RelExpr(in))) );
104
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parents: 99
diff changeset
575 }
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parents: 99
diff changeset
576 return parser.success(exp);
18
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parents: 17
diff changeset
577 }
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parents: 17
diff changeset
578
129
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diff changeset
579 private Code RelExpr(In in) throws ParseException {
104
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diff changeset
580 int start = parser.begin();
129
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diff changeset
581 Code exp = ConcatExpr(in);
104
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diff changeset
582 if( exp==null )
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parents: 99
diff changeset
583 return parser.failure(null);
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parents: 99
diff changeset
584 while(true) {
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
585 if( parser.match("==") ) {
129
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parents: 128
diff changeset
586 Spaces(in);
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diff changeset
587 exp = new EqExpr( se(start), expr(exp), required(expr(ConcatExpr(in))) );
104
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diff changeset
588 } else if( parser.match("~=") ) {
129
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diff changeset
589 Spaces(in);
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diff changeset
590 exp = new NotExpr( se(start), new EqExpr( se(start), expr(exp), required(expr(ConcatExpr(in))) ) );
104
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diff changeset
591 } else if( parser.match("<=") ) {
129
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diff changeset
592 Spaces(in);
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diff changeset
593 exp = new LeExpr( se(start), expr(exp), required(expr(ConcatExpr(in))) );
104
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parents: 99
diff changeset
594 } else if( parser.match(">=") ) {
129
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diff changeset
595 Spaces(in);
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parents: 128
diff changeset
596 exp = new LeExpr( se(start), required(expr(ConcatExpr(in))), expr(exp) );
104
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diff changeset
597 } else if( parser.match("<") ) {
129
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diff changeset
598 Spaces(in);
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diff changeset
599 exp = new LtExpr( se(start), expr(exp), required(expr(ConcatExpr(in))) );
104
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600 } else if( parser.match(">") ) {
129
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diff changeset
601 Spaces(in);
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diff changeset
602 exp = new LtExpr( se(start), required(expr(ConcatExpr(in))), expr(exp) );
104
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diff changeset
603 } else
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diff changeset
604 break;
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diff changeset
605 }
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diff changeset
606 return parser.success(exp);
42
786699c78837 implement try-catch
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diff changeset
607 }
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diff changeset
608
129
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diff changeset
609 private Code ConcatExpr(In in) throws ParseException {
104
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diff changeset
610 int start = parser.begin();
129
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diff changeset
611 Code exp = SumExpr(in);
104
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diff changeset
612 if( exp==null )
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diff changeset
613 return parser.failure(null);
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diff changeset
614 if( parser.match("..") ) {
129
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diff changeset
615 Spaces(in);
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diff changeset
616 exp = new ConcatExpr( se(start), expr(exp), required(expr(ConcatExpr(in))) );
104
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diff changeset
617 }
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diff changeset
618 return parser.success(exp);
28
df923e5835b2 fix local initial assignment
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parents: 26
diff changeset
619 }
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diff changeset
620
129
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diff changeset
621 private Code SumExpr(In in) throws ParseException {
104
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diff changeset
622 int start = parser.begin();
129
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diff changeset
623 Code exp = TermExpr(in);
104
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diff changeset
624 if( exp==null )
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diff changeset
625 return parser.failure(null);
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diff changeset
626 while(true) {
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diff changeset
627 if( parser.match('+') ) {
129
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diff changeset
628 Spaces(in);
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diff changeset
629 exp = new AddExpr( se(start), expr(exp), required(expr(TermExpr(in))) );
104
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diff changeset
630 } else if( Minus() ) {
129
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diff changeset
631 Spaces(in);
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diff changeset
632 exp = new SubExpr( se(start), expr(exp), required(expr(TermExpr(in))) );
104
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diff changeset
633 } else
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diff changeset
634 break;
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diff changeset
635 }
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diff changeset
636 return parser.success(exp);
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diff changeset
637 }
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diff changeset
638
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diff changeset
639 private boolean Minus() {
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diff changeset
640 parser.begin();
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diff changeset
641 return parser.match('-') && !parser.match('-') ? parser.success() : parser.failure();
12
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
642 }
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diff changeset
643
129
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diff changeset
644 private Code TermExpr(In in) throws ParseException {
104
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diff changeset
645 int start = parser.begin();
129
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diff changeset
646 Code exp = UnaryExpr(in);
104
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diff changeset
647 if( exp==null )
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diff changeset
648 return parser.failure(null);
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parents: 99
diff changeset
649 while(true) {
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diff changeset
650 if( parser.match('*') ) {
129
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diff changeset
651 Spaces(in);
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diff changeset
652 exp = new MulExpr( se(start), expr(exp), required(expr(UnaryExpr(in))) );
104
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diff changeset
653 } else if( parser.match('/') ) {
129
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diff changeset
654 Spaces(in);
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diff changeset
655 exp = new DivExpr( se(start), expr(exp), required(expr(UnaryExpr(in))) );
107
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diff changeset
656 } else if( Mod() ) {
129
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diff changeset
657 Spaces(in);
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diff changeset
658 exp = new ModExpr( se(start), expr(exp), required(expr(UnaryExpr(in))) );
104
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diff changeset
659 } else
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diff changeset
660 break;
17
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diff changeset
661 }
104
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diff changeset
662 return parser.success(exp);
17
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parents: 16
diff changeset
663 }
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parents: 16
diff changeset
664
107
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diff changeset
665 private boolean Mod() {
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parents: 106
diff changeset
666 parser.begin();
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diff changeset
667 return parser.match('%') && !parser.match('>') ? parser.success() : parser.failure();
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diff changeset
668 }
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diff changeset
669
129
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diff changeset
670 private Code UnaryExpr(In in) throws ParseException {
104
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diff changeset
671 int start = parser.begin();
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diff changeset
672 if( parser.match('#') ) {
129
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diff changeset
673 Spaces(in);
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diff changeset
674 return parser.success( new LenExpr( se(start), required(expr(UnaryExpr(in))) ) );
104
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diff changeset
675 }
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diff changeset
676 if( Minus() ) {
129
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diff changeset
677 Spaces(in);
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diff changeset
678 return parser.success( new UnmExpr( se(start), required(expr(UnaryExpr(in))) ) );
104
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diff changeset
679 }
129
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diff changeset
680 if( Keyword("not",in) ) {
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parents: 128
diff changeset
681 Spaces(in);
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diff changeset
682 return parser.success( new NotExpr( se(start), required(expr(UnaryExpr(in))) ) );
104
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diff changeset
683 }
129
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diff changeset
684 Code exp = PowExpr(in);
104
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diff changeset
685 if( exp==null )
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parents: 99
diff changeset
686 return parser.failure(null);
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parents: 99
diff changeset
687 return parser.success(exp);
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parents: 99
diff changeset
688 }
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parents: 99
diff changeset
689
129
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diff changeset
690 private Code PowExpr(In in) throws ParseException {
104
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diff changeset
691 int start = parser.begin();
129
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diff changeset
692 Code exp = SingleExpr(in);
104
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diff changeset
693 if( exp==null )
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diff changeset
694 return parser.failure(null);
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diff changeset
695 if( parser.match('^') ) {
129
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diff changeset
696 Spaces(in);
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diff changeset
697 exp = new ConcatExpr( se(start), expr(exp), required(expr(PowExpr(in))) );
104
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
698 }
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parents: 99
diff changeset
699 return parser.success(exp);
14
2ddf85634d20 whitespace handling;
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parents: 12
diff changeset
700 }
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parents: 12
diff changeset
701
129
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diff changeset
702 private Code SingleExpr(In in) throws ParseException {
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
703 parser.begin();
107
dbf459397217 change OutputStatement to JspExpressions;
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diff changeset
704 Code exp;
129
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diff changeset
705 exp = FunctionExpr(in);
104
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parents: 99
diff changeset
706 if( exp != null )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
707 return parser.success(exp);
129
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diff changeset
708 exp = TableExpr(in);
104
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parents: 99
diff changeset
709 if( exp != null )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
710 return parser.success(exp);
129
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diff changeset
711 exp = VarExp(in);
104
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parents: 99
diff changeset
712 if( exp != null )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
713 return parser.success(exp);
129
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diff changeset
714 exp = Literal(in);
104
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parents: 99
diff changeset
715 if( exp != null )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
716 return parser.success(exp);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
717 return parser.failure(null);
14
2ddf85634d20 whitespace handling;
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parents: 12
diff changeset
718 }
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parents: 12
diff changeset
719
129
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diff changeset
720 private Expr FunctionExpr(In in) throws ParseException {
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diff changeset
721 if( !Keyword("function",in) )
104
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diff changeset
722 return null;
129
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diff changeset
723 return RequiredFunction(in);
20
d85510d92eee add BreakStmt
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parents: 19
diff changeset
724 }
d85510d92eee add BreakStmt
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parents: 19
diff changeset
725
129
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diff changeset
726 private FnDef RequiredFunction(In in) throws ParseException {
104
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parents: 99
diff changeset
727 int start = parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
728 RequiredMatch('(');
129
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diff changeset
729 In inParens = in.parens();
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parents: 128
diff changeset
730 Spaces(inParens);
104
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parents: 99
diff changeset
731 frame = new Frame(frame);
129
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diff changeset
732 List<String> names = NameList(in);
104
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parents: 99
diff changeset
733 if( names != null ) {
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
734 addSymbols(names);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
735 if( parser.match(',') ) {
129
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diff changeset
736 Spaces(inParens);
104
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parents: 99
diff changeset
737 if( !parser.match("...") )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
738 throw parser.exception();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
739 frame.isVarArg = true;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
740 }
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parents: 99
diff changeset
741 } else if( parser.match("...") ) {
129
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diff changeset
742 Spaces(inParens);
104
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parents: 99
diff changeset
743 frame.isVarArg = true;
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
744 }
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parents: 99
diff changeset
745 RequiredMatch(')');
129
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diff changeset
746 Spaces(in);
104
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parents: 99
diff changeset
747 Stmt block = RequiredBlock();
129
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diff changeset
748 RequiredKeyword("end",in);
104
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parents: 99
diff changeset
749 FnDef fnDef = newFnDef(start,block);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
750 frame = frame.parent;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
751 return parser.success(fnDef);
11
b7d7069fee58 add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 9
diff changeset
752 }
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parents: 9
diff changeset
753
129
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diff changeset
754 private VarArgs VarArgs(In in) throws ParseException {
104
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parents: 99
diff changeset
755 int start = parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
756 if( !frame.isVarArg || !parser.match("...") )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
757 return parser.failure(null);
129
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diff changeset
758 Spaces(in);
104
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parents: 99
diff changeset
759 return parser.success( new VarArgs(se(start)) );
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
760 }
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
761
129
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diff changeset
762 private Expr TableExpr(In in) throws ParseException {
104
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parents: 99
diff changeset
763 int start = parser.begin();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
764 if( !parser.match('{') )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
765 return parser.failure(null);
129
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diff changeset
766 In inParens = in.parens();
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parents: 128
diff changeset
767 Spaces(inParens);
104
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parents: 99
diff changeset
768 List<TableExpr.Field> fields = new ArrayList<TableExpr.Field>();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
769 ExpList.Builder builder = new ExpList.Builder();
129
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parents: 128
diff changeset
770 while( Field(fields,builder,in) && FieldSep(inParens) );
148
dfd0f33b584e minor parser fix
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parents: 139
diff changeset
771 Spaces(inParens);
107
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
772 if( !parser.match('}') )
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
773 throw parser.exception("Expected table element or '}'");
104
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parents: 99
diff changeset
774 return parser.success( new TableExpr( se(start), fields.toArray(new TableExpr.Field[0]), builder.build() ) );
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parents: 99
diff changeset
775 }
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parents: 99
diff changeset
776
129
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diff changeset
777 private boolean FieldSep(In in) throws ParseException {
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
778 if( !parser.anyOf(",;") )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
779 return false;
129
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parents: 128
diff changeset
780 Spaces(in);
14
2ddf85634d20 whitespace handling;
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parents: 12
diff changeset
781 return true;
2ddf85634d20 whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
782 }
2ddf85634d20 whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
783
129
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parents: 128
diff changeset
784 private boolean Field(List<TableExpr.Field> fields,ExpList.Builder builder,In in) throws ParseException {
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
785 parser.begin();
129
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parents: 128
diff changeset
786 Expr exp = SubExpr(in);
104
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parents: 99
diff changeset
787 if( exp==null )
129
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parents: 128
diff changeset
788 exp = NameExpr(in);
104
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parents: 99
diff changeset
789 if( exp!=null && parser.match('=') ) {
137
573ce091ae00 minor parser fix
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parents: 129
diff changeset
790 Spaces(in);
129
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parents: 128
diff changeset
791 fields.add( new TableExpr.Field( exp, required(expr(Expr(in))) ) );
104
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parents: 99
diff changeset
792 return parser.success();
17
09d41f7490a8 add local variables
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parents: 16
diff changeset
793 }
104
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parents: 99
diff changeset
794 parser.rollback();
129
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parents: 128
diff changeset
795 Code code = Expr(in);
107
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parents: 106
diff changeset
796 if( code != null ) {
dbf459397217 change OutputStatement to JspExpressions;
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diff changeset
797 builder.add(code);
104
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diff changeset
798 return parser.success();
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parents: 99
diff changeset
799 }
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parents: 99
diff changeset
800 return parser.failure();
7
bca8fc5d928b work on expressions
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parents: 6
diff changeset
801 }
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parents: 6
diff changeset
802
129
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diff changeset
803 private Code VarExp(In in) throws ParseException {
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diff changeset
804 Var var = VarZ(in);
104
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diff changeset
805 return var==null ? null : var.expr();
8
8896068e0a4b finish operators
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parents: 7
diff changeset
806 }
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parents: 7
diff changeset
807
129
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diff changeset
808 private Var VarZ(In in) throws ParseException {
104
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diff changeset
809 int start = parser.begin();
129
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diff changeset
810 Var var = VarStart(in);
104
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diff changeset
811 if( var==null )
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
812 return parser.failure(null);
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parents: 99
diff changeset
813 Var var2;
129
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diff changeset
814 while( (var2=Var2(in,start,var.expr())) != null ) {
104
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diff changeset
815 var = var2;
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
816 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
817 return parser.success(var);
7
bca8fc5d928b work on expressions
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parents: 6
diff changeset
818 }
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diff changeset
819
129
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diff changeset
820 private Var Var2(In in,int start,Code exp1) throws ParseException {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff changeset
821 Var var = VarExt(in,start,exp1);
104
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parents: 99
diff changeset
822 if( var != null )
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parents: 99
diff changeset
823 return var;
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parents: 99
diff changeset
824 if( parser.match("->") ) {
129
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diff changeset
825 Spaces(in);
104
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diff changeset
826 ExpList.Builder builder = new ExpList.Builder();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
827 builder.add(exp1);
129
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diff changeset
828 Expr exp2 = expr(RequiredVarExpB(in));
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diff changeset
829 FnCall fnCall = required(Args( in, start, exp2, builder ));
107
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parents: 106
diff changeset
830 return exprVar(fnCall);
104
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parents: 99
diff changeset
831 }
129
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parents: 128
diff changeset
832 FnCall fnCall = Args( in, start, expr(exp1), new ExpList.Builder() );
104
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parents: 99
diff changeset
833 if( fnCall != null )
107
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parents: 106
diff changeset
834 return exprVar(fnCall);
104
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parents: 99
diff changeset
835 return null;
21
c93d8c781853 add functions
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parents: 20
diff changeset
836 }
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parents: 20
diff changeset
837
129
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diff changeset
838 private Code RequiredVarExpB(In in) throws ParseException {
104
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parents: 99
diff changeset
839 int start = parser.begin();
129
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diff changeset
840 Var var = required(VarStart(in));
104
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diff changeset
841 Var var2;
129
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diff changeset
842 while( (var2=VarExt(in,start,var.expr())) != null ) {
104
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parents: 99
diff changeset
843 var = var2;
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
844 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
845 return parser.success(var.expr());
9
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parents: 8
diff changeset
846 }
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parents: 8
diff changeset
847
129
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diff changeset
848 private Var VarExt(In in,int start,Code exp1) throws ParseException {
104
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parents: 99
diff changeset
849 parser.begin();
129
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parents: 128
diff changeset
850 Expr exp2 = SubExpr(in);
104
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parents: 99
diff changeset
851 if( exp2 != null )
107
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parents: 106
diff changeset
852 return parser.success(indexVar(start,expr(exp1),exp2));
104
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parents: 99
diff changeset
853 if( parser.match('.') ) {
129
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parents: 128
diff changeset
854 Spaces(in);
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diff changeset
855 exp2 = NameExpr(in);
104
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parents: 99
diff changeset
856 if( exp2!=null )
107
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parents: 106
diff changeset
857 return parser.success(indexVar(start,expr(exp1),exp2));
104
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parents: 99
diff changeset
858 }
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parents: 99
diff changeset
859 return parser.failure(null);
11
b7d7069fee58 add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 9
diff changeset
860 }
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parents: 9
diff changeset
861
129
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parents: 128
diff changeset
862 private Var VarStart(In in) throws ParseException {
104
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parents: 99
diff changeset
863 int start = parser.begin();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
864 if( parser.match('(') ) {
129
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diff changeset
865 In inParens = in.parens();
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parents: 128
diff changeset
866 Spaces(inParens);
486a0641bca4 add pickle client/server;
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parents: 128
diff changeset
867 Expr exp = expr(Expr(inParens));
104
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parents: 99
diff changeset
868 RequiredMatch(')');
129
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parents: 128
diff changeset
869 Spaces(in);
104
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parents: 99
diff changeset
870 return parser.success(exprVar(exp));
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
871 }
129
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parents: 128
diff changeset
872 String name = Name(in);
104
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parents: 99
diff changeset
873 if( name != null )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
874 return parser.success(nameVar(start,name));
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parents: 99
diff changeset
875 return parser.failure(null);
9
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parents: 8
diff changeset
876 }
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parents: 8
diff changeset
877
104
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parents: 99
diff changeset
878 private Expr env() {
34
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diff changeset
879 int index = stackIndex(_ENV);
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parents: 33
diff changeset
880 if( index != -1 )
40
e3624b7cd603 implement stack trace
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 35
diff changeset
881 return new GetLocalVar(null,index);
34
0cdc1da466ee implement _G and _ENV
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parents: 33
diff changeset
882 index = upValueIndex(_ENV);
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parents: 33
diff changeset
883 if( index != -1 )
40
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 35
diff changeset
884 return new GetUpVar(null,index);
34
0cdc1da466ee implement _G and _ENV
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 33
diff changeset
885 throw new RuntimeException("_ENV not found");
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parents: 33
diff changeset
886 }
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parents: 33
diff changeset
887
104
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parents: 99
diff changeset
888 private interface Var {
107
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parents: 106
diff changeset
889 public Code expr();
104
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diff changeset
890 public Settable settable();
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parents: 99
diff changeset
891 }
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parents: 99
diff changeset
892
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parents: 99
diff changeset
893 private Var nameVar(final int start,final String name) {
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parents: 99
diff changeset
894 return new Var() {
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parents: 99
diff changeset
895
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parents: 99
diff changeset
896 public Expr expr() {
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
897 int index = stackIndex(name);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
898 if( index != -1 )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
899 return new GetLocalVar(se(start),index);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
900 index = upValueIndex(name);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
901 if( index != -1 )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
902 return new GetUpVar(se(start),index);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
903 return new IndexExpr( se(start), env(), new ConstExpr(name) );
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
904 }
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parents: 99
diff changeset
905
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
906 public Settable settable() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
907 int index = stackIndex(name);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
908 if( index != -1 )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
909 return new SetLocalVar(index);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
910 index = upValueIndex(name);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
911 if( index != -1 )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
912 return new SetUpVar(index);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
913 return new SetTableEntry( se(start), env(), new ConstExpr(name) );
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
914 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
915 };
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
916 }
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diff changeset
917
107
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diff changeset
918 private Var exprVar(final Code expr) {
104
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parents: 99
diff changeset
919 return new Var() {
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
920
107
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diff changeset
921 public Code expr() {
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
922 return expr;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
923 }
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parents: 99
diff changeset
924
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
925 public Settable settable() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
926 return null;
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
927 }
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parents: 99
diff changeset
928 };
11
b7d7069fee58 add assignment statement and CmdLine
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parents: 9
diff changeset
929 }
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parents: 9
diff changeset
930
104
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parents: 99
diff changeset
931 private Var indexVar(final int start,final Expr table,final Expr key) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
932 return new Var() {
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
933
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parents: 99
diff changeset
934 public Expr expr() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
935 return new IndexExpr( se(start), table, key );
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
936 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
937
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
938 public Settable settable() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
939 return new SetTableEntry(se(start),table,key);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
940 }
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
941 };
9
600676034a1a add variables and tables
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parents: 8
diff changeset
942 }
600676034a1a add variables and tables
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parents: 8
diff changeset
943
129
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parents: 128
diff changeset
944 private FnCall Args(In in,int start,Expr fn,ExpList.Builder builder) throws ParseException {
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
945 parser.begin();
129
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parents: 128
diff changeset
946 return args(in,builder)
107
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
947 ? parser.success( new FnCall( se(start), fn, builder.build() ) )
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
948 : parser.failure((FnCall)null);
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
949 }
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parents: 106
diff changeset
950
129
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parents: 128
diff changeset
951 private boolean args(In in,ExpList.Builder builder) throws ParseException {
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
952 if( parser.match('(') ) {
129
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parents: 128
diff changeset
953 In inParens = in.parens();
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
954 Spaces(inParens);
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
955 ExpList(inParens,builder); // optional
107
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parents: 106
diff changeset
956 if( !parser.match(')') )
dbf459397217 change OutputStatement to JspExpressions;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 106
diff changeset
957 throw parser.exception("Expression or ')' expected");
129
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parents: 128
diff changeset
958 Spaces(in);
107
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
959 return true;
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
960 }
129
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parents: 128
diff changeset
961 Expr exp = TableExpr(in);
107
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
962 if( exp != null ) {
dbf459397217 change OutputStatement to JspExpressions;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 106
diff changeset
963 builder.add(exp);
dbf459397217 change OutputStatement to JspExpressions;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 106
diff changeset
964 return true;
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
965 }
129
486a0641bca4 add pickle client/server;
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parents: 128
diff changeset
966 String s = StringLiteral(in);
107
dbf459397217 change OutputStatement to JspExpressions;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 106
diff changeset
967 if( s != null ) {
dbf459397217 change OutputStatement to JspExpressions;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 106
diff changeset
968 builder.add( new ConstExpr(s) );
dbf459397217 change OutputStatement to JspExpressions;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 106
diff changeset
969 return true;
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
970 }
129
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parents: 128
diff changeset
971 Expressions exps = JspExpressions(in);
107
dbf459397217 change OutputStatement to JspExpressions;
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parents: 106
diff changeset
972 if( exps != null ) {
dbf459397217 change OutputStatement to JspExpressions;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 106
diff changeset
973 builder.add(exps);
dbf459397217 change OutputStatement to JspExpressions;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 106
diff changeset
974 return true;
dbf459397217 change OutputStatement to JspExpressions;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 106
diff changeset
975 }
dbf459397217 change OutputStatement to JspExpressions;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 106
diff changeset
976 return false;
11
b7d7069fee58 add assignment statement and CmdLine
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parents: 9
diff changeset
977 }
b7d7069fee58 add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 9
diff changeset
978
129
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parents: 128
diff changeset
979 private Expressions ExpList(In in) throws ParseException {
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
980 ExpList.Builder builder = new ExpList.Builder();
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
981 return ExpList(in,builder) ? builder.build() : null;
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
982 }
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
983
129
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parents: 128
diff changeset
984 private boolean ExpList(In in,ExpList.Builder builder) throws ParseException {
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
985 parser.begin();
129
486a0641bca4 add pickle client/server;
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parents: 128
diff changeset
986 Code exp = Expr(in);
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
987 if( exp==null )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
988 return parser.failure();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
989 builder.add(exp);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
990 while( parser.match(',') ) {
129
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parents: 128
diff changeset
991 Spaces(in);
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
992 builder.add( RequiredExpr(in) );
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
993 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
994 return parser.success();
9
600676034a1a add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 8
diff changeset
995 }
600676034a1a add variables and tables
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parents: 8
diff changeset
996
129
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parents: 128
diff changeset
997 private Expr SubExpr(In in) throws ParseException {
104
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diff changeset
998 parser.begin();
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diff changeset
999 if( !parser.match('[') )
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diff changeset
1000 return parser.failure(null);
129
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diff changeset
1001 In inParens = in.parens();
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diff changeset
1002 Spaces(inParens);
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diff changeset
1003 Expr exp = expr(RequiredExpr(inParens));
104
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diff changeset
1004 RequiredMatch(']');
129
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diff changeset
1005 Spaces(in);
104
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diff changeset
1006 return parser.success(exp);
11
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diff changeset
1007 }
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diff changeset
1008
129
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diff changeset
1009 private Expr NameExpr(In in) throws ParseException {
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diff changeset
1010 String name = Name(in);
104
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diff changeset
1011 return name==null ? null : new ConstExpr(name);
54
f5b27ef14d73 add OutputStmt
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parents: 51
diff changeset
1012 }
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diff changeset
1013
129
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diff changeset
1014 private String RequiredName(In in) throws ParseException {
104
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diff changeset
1015 parser.begin();
129
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diff changeset
1016 String name = Name(in);
104
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diff changeset
1017 if( name==null )
139
3b384dc5ca91 replace WebShell.java with web_shell.luan
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diff changeset
1018 throw parser.exception("Name expected");
104
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diff changeset
1019 return parser.success(name);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1020 }
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diff changeset
1021
129
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diff changeset
1022 private String Name(In in) throws ParseException {
104
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diff changeset
1023 int start = parser.begin();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1024 if( !NameFirstChar() )
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parents: 99
diff changeset
1025 return parser.failure(null);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1026 while( NameChar() );
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1027 String match = parser.textFrom(start);
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1028 if( keywords.contains(match) )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1029 return parser.failure(null);
129
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diff changeset
1030 Spaces(in);
104
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parents: 99
diff changeset
1031 return parser.success(match);
17
09d41f7490a8 add local variables
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parents: 16
diff changeset
1032 }
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diff changeset
1033
104
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diff changeset
1034 private boolean NameChar() {
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parents: 99
diff changeset
1035 return NameFirstChar() || Digit();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1036 }
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parents: 99
diff changeset
1037
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1038 private boolean NameFirstChar() {
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parents: 99
diff changeset
1039 return parser.inCharRange('a', 'z') || parser.inCharRange('A', 'Z') || parser.match('_');
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1040 }
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parents: 99
diff changeset
1041
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parents: 99
diff changeset
1042 private void RequiredMatch(char c) throws ParseException {
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1043 if( !parser.match(c) )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1044 throw parser.exception("'"+c+"' expected");
9
600676034a1a add variables and tables
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parents: 8
diff changeset
1045 }
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parents: 8
diff changeset
1046
104
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parents: 99
diff changeset
1047 private void RequiredMatch(String s) throws ParseException {
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1048 if( !parser.match(s) )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1049 throw parser.exception("'"+s+"' expected");
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1050 }
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parents: 99
diff changeset
1051
129
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parents: 128
diff changeset
1052 private void RequiredKeyword(String keyword,In in) throws ParseException {
486a0641bca4 add pickle client/server;
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parents: 128
diff changeset
1053 if( !Keyword(keyword,in) )
104
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parents: 99
diff changeset
1054 throw parser.exception("'"+keyword+"' expected");
9
600676034a1a add variables and tables
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parents: 8
diff changeset
1055 }
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parents: 8
diff changeset
1056
129
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diff changeset
1057 private boolean Keyword(String keyword,In in) throws ParseException {
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1058 parser.begin();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1059 if( !parser.match(keyword) || NameChar() )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1060 return parser.failure();
129
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parents: 128
diff changeset
1061 Spaces(in);
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1062 return parser.success();
12
9cea1aea5eef CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 11
diff changeset
1063 }
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1064
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1065 private static final Set<String> keywords = new HashSet<String>(Arrays.asList(
12
9cea1aea5eef CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 11
diff changeset
1066 "and",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1067 "break",
42
786699c78837 implement try-catch
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parents: 40
diff changeset
1068 "catch",
12
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1069 "do",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1070 "else",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1071 "elseif",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1072 "end",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1073 "false",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1074 "for",
9cea1aea5eef CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 11
diff changeset
1075 "function",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1076 "goto",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1077 "if",
108
3c404a296995 make Package module more standard;
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parents: 107
diff changeset
1078 "import",
12
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1079 "in",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1080 "local",
9cea1aea5eef CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 11
diff changeset
1081 "nil",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1082 "not",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1083 "or",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1084 "repeat",
9cea1aea5eef CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 11
diff changeset
1085 "return",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1086 "then",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1087 "true",
42
786699c78837 implement try-catch
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parents: 40
diff changeset
1088 "try",
12
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1089 "until",
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1090 "while"
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1091 ));
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1092
129
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parents: 128
diff changeset
1093 private Expr Literal(In in) throws ParseException {
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
1094 if( NilLiteral(in) )
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1095 return new ConstExpr(null);
129
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parents: 128
diff changeset
1096 Boolean b = BooleanLiteral(in);
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1097 if( b != null )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1098 return new ConstExpr(b);
129
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parents: 128
diff changeset
1099 Number n = NumberLiteral(in);
104
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parents: 99
diff changeset
1100 if( n != null )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1101 return new ConstExpr(n);
129
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parents: 128
diff changeset
1102 String s = StringLiteral(in);
104
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parents: 99
diff changeset
1103 if( s != null )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1104 return new ConstExpr(s);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1105 return null;
5
9ef0fd711101 start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
1106 }
9ef0fd711101 start LuaParser
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parents:
diff changeset
1107
129
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parents: 128
diff changeset
1108 private boolean NilLiteral(In in) throws ParseException {
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
1109 return Keyword("nil",in);
65
1ff53a88579a multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 60
diff changeset
1110 }
1ff53a88579a multi-line statements
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parents: 60
diff changeset
1111
129
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parents: 128
diff changeset
1112 private Boolean BooleanLiteral(In in) throws ParseException {
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
1113 if( Keyword("true",in) )
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1114 return true;
129
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parents: 128
diff changeset
1115 if( Keyword("false",in) )
104
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parents: 99
diff changeset
1116 return false;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1117 return null;
5
9ef0fd711101 start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
1118 }
9ef0fd711101 start LuaParser
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parents:
diff changeset
1119
129
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parents: 128
diff changeset
1120 private Number NumberLiteral(In in) throws ParseException {
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1121 parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1122 Number n;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1123 if( parser.matchIgnoreCase("0x") ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1124 n = HexNumber();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1125 } else {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1126 n = DecNumber();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1127 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1128 if( n==null || NameChar() )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1129 return parser.failure(null);
129
486a0641bca4 add pickle client/server;
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parents: 128
diff changeset
1130 Spaces(in);
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1131 return parser.success(n);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1132 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1133
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1134 private Number DecNumber() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1135 int start = parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1136 if( Int() ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1137 if( parser.match('.') )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1138 Int(); // optional
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1139 } else if( parser.match('.') && Int() ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1140 // ok
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1141 } else
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1142 return parser.failure(null);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1143 Exponent(); // optional
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1144 return parser.success(Double.valueOf(parser.textFrom(start)));
5
9ef0fd711101 start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
1145 }
9ef0fd711101 start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
1146
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1147 private boolean Exponent() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1148 parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1149 if( !parser.matchIgnoreCase("e") )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1150 return parser.failure();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1151 parser.anyOf("+-"); // optional
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1152 if( !Int() )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1153 return parser.failure();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1154 return parser.success();
5
9ef0fd711101 start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
1155 }
9ef0fd711101 start LuaParser
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parents:
diff changeset
1156
104
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parents: 99
diff changeset
1157 private boolean Int() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1158 if( !Digit() )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1159 return false;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1160 while( Digit() );
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1161 return true;
5
9ef0fd711101 start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
1162 }
9ef0fd711101 start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff changeset
1163
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1164 private boolean Digit() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1165 return parser.inCharRange('0', '9');
16
2a30281ef47c finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 15
diff changeset
1166 }
2a30281ef47c finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 15
diff changeset
1167
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1168 private Number HexNumber() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1169 int start = parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1170 double n;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1171 if( HexInt() ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1172 n = (double)Long.parseLong(parser.textFrom(start),16);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1173 if( parser.match('.') ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1174 start = parser.currentIndex();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1175 if( HexInt() ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1176 String dec = parser.textFrom(start);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1177 n += (double)Long.parseLong(dec,16) / Math.pow(16,dec.length());
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1178 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1179 }
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1180 } else if( parser.match('.') && HexInt() ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1181 String dec = parser.textFrom(start+1);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1182 n = (double)Long.parseLong(dec,16) / Math.pow(16,dec.length());
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1183 } else {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1184 return parser.failure(null);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1185 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1186 if( parser.matchIgnoreCase("p") ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1187 parser.anyOf("+-"); // optional
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1188 start = parser.currentIndex();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1189 if( !HexInt() )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1190 return parser.failure(null);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1191 n *= Math.pow(2,(double)Long.parseLong(parser.textFrom(start)));
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1192 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1193 return parser.success(Double.valueOf(n));
16
2a30281ef47c finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 15
diff changeset
1194 }
2a30281ef47c finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 15
diff changeset
1195
104
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1196 private boolean HexInt() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1197 if( !HexDigit() )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1198 return false;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1199 while( HexDigit() );
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1200 return true;
16
2a30281ef47c finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 15
diff changeset
1201 }
2a30281ef47c finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 15
diff changeset
1202
2a30281ef47c finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 15
diff changeset
1203
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1204 private boolean HexDigit() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1205 return Digit() || parser.anyOf("abcdefABCDEF");
6
a315783c9524 more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 5
diff changeset
1206 }
a315783c9524 more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 5
diff changeset
1207
129
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
1208 private String StringLiteral(In in) throws ParseException {
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1209 String s;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1210 if( (s=QuotedString('"'))==null
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1211 && (s=QuotedString('\''))==null
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1212 && (s=LongString())==null
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1213 )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1214 return null;
129
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
1215 Spaces(in);
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1216 return s;
16
2a30281ef47c finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 15
diff changeset
1217 }
2a30281ef47c finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 15
diff changeset
1218
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1219 private String LongString() throws ParseException {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1220 parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1221 if( !parser.match('[') )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1222 return parser.failure(null);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1223 int start = parser.currentIndex();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1224 while( parser.match('=') );
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1225 int nEquals = parser.currentIndex() - start;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1226 if( !parser.match('[') )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1227 return parser.failure(null);
120
8d7730a5e3b4 move standalone logic from Java to Luan
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 118
diff changeset
1228 EndOfLine();
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1229 start = parser.currentIndex();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1230 while( !LongBracketsEnd(nEquals) ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1231 if( !parser.anyChar() )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1232 throw parser.exception("Unclosed long string");
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1233 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1234 String s = parser.text.substring( start, parser.currentIndex() - nEquals - 2 );
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1235 return parser.success(s);
6
a315783c9524 more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 5
diff changeset
1236 }
a315783c9524 more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 5
diff changeset
1237
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1238 private String QuotedString(char quote) throws ParseException {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1239 parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1240 if( !parser.match(quote) )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1241 return parser.failure(null);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1242 StringBuilder buf = new StringBuilder();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1243 while( !parser.match(quote) ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1244 Character c = EscSeq();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1245 if( c != null ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1246 buf.append(c);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1247 } else {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1248 if( !parser.anyChar() )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1249 throw parser.exception("Unclosed string");
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1250 buf.append(parser.lastChar());
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1251 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1252 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1253 return parser.success(buf.toString());
6
a315783c9524 more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 5
diff changeset
1254 }
a315783c9524 more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 5
diff changeset
1255
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1256 private Character EscSeq() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1257 parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1258 if( !parser.match('\\') )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1259 return parser.failure(null);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1260 if( parser.match('a') ) return '\u0007';
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1261 if( parser.match('b') ) return '\b';
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1262 if( parser.match('f') ) return '\f';
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1263 if( parser.match('n') ) return '\n';
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1264 if( parser.match('r') ) return '\r';
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1265 if( parser.match('t') ) return '\t';
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1266 if( parser.match('v') ) return '\u000b';
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1267 if( parser.match('\\') ) return '\\';
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1268 if( parser.match('"') ) return '"';
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1269 if( parser.match('\'') ) return '\'';
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1270 int start = parser.currentIndex();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1271 if( parser.match('x') && HexDigit() && HexDigit() )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1272 return (char)Integer.parseInt(parser.textFrom(start+1),16);
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1273 if( Digit() ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1274 if( Digit() ) Digit(); // optional
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1275 return (char)Integer.parseInt(parser.textFrom(start));
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1276 }
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1277 return parser.failure(null);
14
2ddf85634d20 whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
1278 }
2ddf85634d20 whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
1279
129
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
1280 private void Spaces(In in) throws ParseException {
486a0641bca4 add pickle client/server;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 128
diff changeset
1281 while( parser.anyOf(" \t") || Comment() || ContinueOnNextLine() || in.parens && NewLine() );
14
2ddf85634d20 whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
1282 }
2ddf85634d20 whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 12
diff changeset
1283
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1284 private boolean ContinueOnNextLine() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1285 parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1286 return parser.match('\\') && EndOfLine() ? parser.success() : parser.failure();
7
bca8fc5d928b work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 6
diff changeset
1287 }
bca8fc5d928b work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 6
diff changeset
1288
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1289 private boolean NewLine() {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1290 if( !EndOfLine() )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1291 return false;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1292 if( parser.match("--") ) {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1293 while( parser.noneOf("\r\n") );
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1294 }
18
3971113699b8 add NumericForStmt
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 17
diff changeset
1295 return true;
3971113699b8 add NumericForStmt
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 17
diff changeset
1296 }
3971113699b8 add NumericForStmt
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 17
diff changeset
1297
104
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1298 private boolean Comment() throws ParseException {
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1299 parser.begin();
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1300 if( !parser.match("--[") )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1301 return parser.failure();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1302 int start = parser.currentIndex();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1303 while( parser.match('=') );
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1304 int nEquals = parser.currentIndex() - start;
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1305 if( !parser.match('[') )
754e6030c029 remove parboiled and rewrite parser;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents: 99
diff changeset
1306 return parser.failure();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1307 while( !LongBracketsEnd(nEquals) ) {
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1308 if( !parser.anyChar() )
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1309 throw parser.exception("Unclosed comment");
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1310 }
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
1311 return parser.success();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1312 }
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
1313
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
1314 private boolean LongBracketsEnd(int nEquals) {
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
1315 parser.begin();
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diff changeset
1316 if( !parser.match(']') )
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
1317 return parser.failure();
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
1318 while( nEquals-- > 0 ) {
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1319 if( !parser.match('=') )
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
1320 return parser.failure();
754e6030c029 remove parboiled and rewrite parser;
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parents: 99
diff changeset
1321 }
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
1322 if( !parser.match(']') )
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
1323 return parser.failure();
754e6030c029 remove parboiled and rewrite parser;
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diff changeset
1324 return parser.success();
12
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1325 }
9cea1aea5eef CmdLine can run files
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parents: 11
diff changeset
1326
5
9ef0fd711101 start LuaParser
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parents:
diff changeset
1327 }