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annotate tpc.js @ 190:372cbd2cd243

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Added reverse method to lists
author Mike Pavone <pavone@retrodev.com>
date Mon, 26 Aug 2013 18:59:38 -0700
parents 5e34563f90ae
children 6fe9343b1400
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 var module = {exports: {}};
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2 var console = {log: function(text){}};
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3 var PEG;
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4
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5 var file = null;
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6 var argtype = 'normal';
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7 var includes = ['.'];
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8 var basedir = '';
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9 var debugmode = false;
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10 var backend = 'C';
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11 for (var i = 0; i < arguments.length; i++) {
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12 switch (argtype) {
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13 case 'normal':
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14 switch (arguments[i]) {
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15 case '-basedir':
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16 case '-i':
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17 case '-backend':
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18 argtype = arguments[i];
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19 break;
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20 case '-compilerdebug':
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21 debugmode = true;
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22 break;
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23 default:
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24 if (arguments[i].charAt(0) == '-') {
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25 print("unrecognized switch", arguments[i]);
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26 quit(1);
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27 }
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28 file = arguments[i];
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29 }
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30 break;
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31 case '-basedir':
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32 if (basedir == '') {
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33 basedir = arguments[i];
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34 argtype = 'normal';
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35 } else {
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36 print("only one -basedir option allowed");
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37 quit(1);
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38 }
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39 break;
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40 case '-i':
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41 includes.push(arguments[i]);
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42 argtype = 'normal';
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43 break;
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44 case '-backend':
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45 backend = arguments[i];
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46 argtype = 'normal';
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47 break;
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48 }
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49 }
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50 if (argtype != 'normal') {
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51 print("switch", argtype, "expects a parameter");
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52 quit(1);
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53 }
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54
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55 if (!file) {
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56 print('usage: d8 tpc.js -- filename');
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57 quit(1);
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58 }
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59 includes.push(basedir + 'modules');
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60 compileFile(file, basedir, includes, debugmode, backend);
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62
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63 function parseFile(filename)
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64 {
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65 debugprint('//parsing', filename);
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66 var text = read(filename);
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67 try {
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68 var parsed = parser.parse(text);
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69 } catch (error) {
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70 print('SyntaxError on at', error.line, ',', error.column, ':', error.message);
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71 var lines = text.split('\n');
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72 print(lines[error.line-1]);
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73 var spacer = '';
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74 for (var i = 1; i < error.column; i++) {
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75 if (lines[error.line-1].charAt(i-1) == '\t') {
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76 spacer += ' ';
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77 } else {
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78 spacer += ' ';
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79 }
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80 }
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81 print(spacer + '^');
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82 quit(1);
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83 }
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84 return parsed;
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85 }
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86
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87
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88 function compileFile(filename, basedir, includes, debugmode, backend)
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89 {
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90 load(basedir + 'mquery.js');
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91 load(basedir + 'peg.js');
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92 PEG = module.exports;
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93 load(basedir + 'parser.js');
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94 load(basedir + 'compiler.js');
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95 if (backend == 'C') {
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96 load(basedir + 'cbackend.js');
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97 } else {
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98 load(basedir + 'jsbackend.js');
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99 }
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100
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101 var parsed = parseFile(filename);
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102 if (debugmode) {
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103 debugprint = print;
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104 }
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105 toplevel = new topsymbols(includes);
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106 switch(backend)
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107 {
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108 case 'C':
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109 var c = parsed.toCModule();
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110 break;
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111 case 'JS':
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112 var c = makeJSProg(parsed);
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113 break;
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114 default:
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115 print('Backend', backend, ' not recognized');
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116 quit(1);
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117 }
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118 print(c);
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119 }