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annotate core/src/luan/LuanSource.java @ 190:04b86428dc50

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minor git-svn-id: https://luan-java.googlecode.com/svn/trunk@191 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Thu, 26 Jun 2014 18:20:54 +0000
parents 3dcb0f9bee82
children b48cfa14ba60
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 package luan;
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4 public final class LuanSource {
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5 public final String name;
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6 public final String text;
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8 public LuanSource(String name,String text) {
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9 this.name = name;
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10 this.text = text;
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11 }
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13 public static final class CompilerElement extends LuanElement {
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14 public final LuanSource source;
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16 public CompilerElement(LuanSource source) {
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17 if( source==null )
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18 throw new NullPointerException("source is null");
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19 this.source = source;
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20 }
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22 @Override String location() {
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23 return "Compiling " + source.name;
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24 }
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25 }
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27 public static final class Element extends LuanElement {
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28 public final LuanSource source;
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29 public final int start;
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30 public final int end;
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31 private final String text;
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33 public Element(LuanSource source,int start,int end) {
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34 this(source,start,end,null);
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35 }
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37 public Element(LuanSource source,int start,int end,String text) {
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38 if( source==null )
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39 throw new NullPointerException("source is null");
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40 this.source = source;
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41 this.start = start;
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42 while( end > 0 && Character.isWhitespace(source.text.charAt(end-1)) ) {
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43 end--;
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44 }
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45 this.end = end;
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46 this.text = text;
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47 }
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49 public String text() {
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50 return text!=null ? text : source.text.substring(start,end);
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51 }
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53 @Override String location() {
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54 return source.name + ':' + lineNumber();
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55 }
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57 private int lineNumber() {
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58 int line = 0;
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59 int i = -1;
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60 do {
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61 line++;
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62 i = source.text.indexOf('\n',i+1);
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63 } while( i != -1 && i < start );
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64 return line;
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65 }
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67 }
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68 }