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annotate tpc.js @ 76:c801dccdb4fb

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Add shell script for driving tpc.js
author Mike Pavone <pavone@retrodev.com>
date Sun, 15 Jul 2012 13:06:29 -0700
parents 3a169ebb3224
children b5152f5ac138
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 PEG;
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3
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4 var file = null;
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5 var argtype = 'normal';
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6 var includes = ['.'];
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7 var basedir = '';
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8 var debugmode = false;
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9 for (var i = 0; i < arguments.length; i++) {
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10 switch (argtype) {
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11 case 'normal':
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12 switch (arguments[i]) {
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13 case '-basedir':
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14 case '-i':
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15 argtype = arguments[i];
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16 break;
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17 case '-compilerdebug':
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18 debugmode = true;
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19 break;
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20 default:
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21 if (arguments[i].charAt(0) == '-') {
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22 print("unrecognized switch", arguments[i]);
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23 quit(1);
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24 }
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25 file = arguments[i];
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26 }
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27 break;
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28 case '-basedir':
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29 if (basedir == '') {
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30 basedir = arguments[i];
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31 argtype = 'normal';
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32 } else {
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33 print("only one -basedir option allowed");
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34 quit(1);
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35 }
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36 break;
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37 case '-i':
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38 includes.push(arguments[i]);
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39 argtype = 'normal';
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40 break;
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41 }
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42 }
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43 if (argtype != 'normal') {
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44 print("switch", argtype, "expects a parameter");
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45 quit(1);
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46 }
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47
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48 if (!file) {
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49 print('usage: d8 tpc.js -- filename');
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50 quit(1);
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51 }
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52 includes.push(basedir + 'modules');
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53 compileFile(file, basedir, includes, debugmode);
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55
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56 function parseFile(filename)
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57 {
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58 debugprint('//parsing', filename);
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59 var text = read(filename);
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60 try {
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61 var parsed = parser.parse(text);
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62 } catch (error) {
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63 print('SyntaxError on at', error.line, ',', error.column, ':', error.message);
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64 var lines = text.split('\n');
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65 print(lines[error.line-1]);
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66 var spacer = '';
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67 for (var i = 1; i < error.column; i++) {
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68 if (lines[error.line-1].charAt(i-1) == '\t') {
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69 spacer += ' ';
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70 } else {
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71 spacer += ' ';
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72 }
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73 }
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74 print(spacer + '^');
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75 quit(1);
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76 }
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77 return parsed;
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78 }
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79
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81 function compileFile(filename, basedir, includes, debugmode)
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82 {
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83
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84 load(basedir + 'peg.js');
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85 PEG = module.exports;
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86 load(basedir + 'parser.js');
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87 load(basedir + 'compiler.js');
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88 load(basedir + 'cbackend.js');
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89 var parsed = parseFile(filename);
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90 if (debugmode) {
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91 debugprint = print;
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92 }
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93 toplevel = new topsymbols(includes);
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94 var c = parsed.toCModule();
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95 print(c);
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96 }