Mercurial Hosting > luan
annotate src/luan/tools/CmdLine.java @ 117:e935581cf9fb
remove jline because the project moved to GitHub
git-svn-id: https://luan-java.googlecode.com/svn/trunk@118 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Fri, 30 May 2014 08:57:24 +0000 |
parents | 2428ecfed375 |
children | 8d7730a5e3b4 |
rev | line source |
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move CmdLine to luan.tools
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1 package luan.tools; |
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2 |
117
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3 import java.io.Console; |
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4 import java.io.IOException; |
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5 import luan.lib.BasicLib; |
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6 import luan.Luan; |
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7 import luan.LuanState; |
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8 import luan.LuanFunction; |
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9 import luan.LuanTable; |
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10 import luan.LuanException; |
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11 |
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12 |
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13 public class CmdLine { |
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14 |
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15 public static void main(String[] args) { |
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16 LuanState luan = LuanState.newStandard(); |
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17 boolean interactive = false; |
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18 boolean showVersion = false; |
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19 int i = 0; |
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20 if( args.length == 0 ) { |
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21 interactive = true; |
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22 showVersion = true; |
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23 } else { |
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24 while( i < args.length ) { |
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25 String arg = args[i]; |
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26 if( !arg.startsWith("-") || arg.equals("--") ) |
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27 break; |
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28 if( arg.equals("-i") ) { |
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29 interactive = true; |
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30 } else if( arg.equals("-v") ) { |
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31 showVersion = true; |
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32 } else if( arg.equals("-e") ) { |
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33 if( ++i == args.length ) |
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34 error("'-e' needs argument"); |
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35 String cmd = args[i]; |
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36 try { |
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37 LuanFunction fn = BasicLib.load(luan,cmd,"(command line)",false); |
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38 luan.JAVA.call(fn,null); |
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39 } catch(LuanException e) { |
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40 System.err.println("command line error: "+e.getMessage()); |
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41 System.exit(-1); |
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42 } |
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43 } else if( arg.equals("-") ) { |
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44 try { |
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45 BasicLib.do_file(luan,"stdin"); |
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46 } catch(LuanException e) { |
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47 System.err.println(e.getMessage()); |
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48 System.exit(-1); |
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49 } |
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50 System.exit(0); |
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51 } else { |
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52 error("unrecognized option '"+arg+"'"); |
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53 } |
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54 i++; |
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55 } |
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56 } |
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57 if( showVersion ) |
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58 System.out.println(Luan.version); |
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59 if( i < args.length ) { |
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60 String file = args[i++]; |
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61 Object[] varArgs = new Object[args.length-1]; |
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62 System.arraycopy(args,1,varArgs,0,varArgs.length); |
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63 LuanTable argsTable = new LuanTable(); |
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64 for( int j=0; j<args.length; j++ ) { |
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65 argsTable.put( j, args[j] ); |
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66 } |
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67 luan.global().put("arg",argsTable); |
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68 try { |
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69 LuanFunction fn = BasicLib.load_file(luan,file); |
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70 luan.JAVA.call(fn,null,varArgs); |
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71 } catch(LuanException e) { |
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72 // System.err.println("error: "+e.getMessage()); |
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73 e.printStackTrace(); |
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74 System.exit(-1); |
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75 } |
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76 } |
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77 if( interactive ) |
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78 interactive(luan); |
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79 } |
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80 |
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81 private static void error(String msg) { |
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82 System.err.println(msg); |
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83 System.err.println("usage: java luan.CmdLine [options] [script [args]]"); |
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84 System.err.println("Available options are:"); |
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85 System.err.println(" -e stat execute string 'stat'"); |
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86 System.err.println(" -i enter interactive mode after executing 'script'"); |
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87 // System.err.println(" -l name require library 'name'"); |
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88 System.err.println(" -v show version information"); |
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89 // System.err.println(" -E ignore environment variables"); |
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90 System.err.println(" -- stop handling options"); |
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91 System.err.println(" - stop handling options and execute stdin"); |
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92 System.exit(-1); |
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93 } |
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94 |
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95 static void interactive(LuanState luan) { |
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96 Console console = System.console(); |
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97 LuanFunction print = (LuanFunction)luan.global().get("print"); |
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98 while( true ) { |
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99 String input = console.readLine("> "); |
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100 if( input==null ) |
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101 break; |
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102 try { |
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103 Object[] rtn = Luan.array(luan.eval(input,"stdin",true)); |
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104 if( rtn.length > 0 ) |
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105 luan.JAVA.call(print,"print",rtn); |
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106 } catch(LuanException e) { |
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107 System.out.println(e.getMessage()); |
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108 } |
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109 } |
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110 } |
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111 |
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112 } |