Mercurial Hosting > luan
annotate src/luan/interp/LuaParser.java @ 34:0cdc1da466ee
implement _G and _ENV
git-svn-id: https://luan-java.googlecode.com/svn/trunk@35 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Sun, 16 Dec 2012 09:23:56 +0000 |
parents | 8793c71ad47a |
children | e51906de0f11 |
rev | line source |
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5
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start LuaParser
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1 package luan.interp; |
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2 |
12
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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 org.parboiled.BaseParser; |
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10 import org.parboiled.Parboiled; |
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11 import org.parboiled.Rule; |
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12 import org.parboiled.parserunners.ReportingParseRunner; |
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13 import org.parboiled.support.ParsingResult; |
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14 import org.parboiled.support.Var; |
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15 import org.parboiled.support.StringVar; |
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16 import org.parboiled.support.StringBuilderVar; |
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17 import org.parboiled.support.ValueStack; |
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18 import org.parboiled.errors.ErrorUtils; |
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19 import luan.Lua; |
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20 import luan.LuaNumber; |
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21 import luan.LuaState; |
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22 |
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23 |
30
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24 class LuaParser extends BaseParser<Object> { |
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25 |
34
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26 static final String _G = "_G"; |
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27 static final String _ENV = "_ENV"; |
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28 |
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29 static final class Frame { |
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30 final Frame parent; |
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31 final List<String> symbols = new ArrayList<String>(); |
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32 int stackSize = 0; |
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33 int loops = 0; |
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34 boolean isVarArg = false; |
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35 final List<String> upValueSymbols = new ArrayList<String>(); |
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36 final List<UpValue.Getter> upValueGetters = new ArrayList<UpValue.Getter>(); |
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37 |
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38 Frame() { |
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39 this.parent = null; |
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40 upValueSymbols.add(_G); |
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41 upValueGetters.add(UpValue.globalGetter); |
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42 upValueSymbols.add(_ENV); |
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43 upValueGetters.add(UpValue.globalGetter); |
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44 } |
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45 |
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46 Frame(Frame parent) { |
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47 this.parent = parent; |
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48 } |
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49 |
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50 int stackIndex(String name) { |
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51 int i = symbols.size(); |
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52 while( --i >= 0 ) { |
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53 if( symbols.get(i).equals(name) ) |
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54 return i; |
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55 } |
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56 return -1; |
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57 } |
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58 |
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59 int upValueIndex(String name) { |
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60 int i = upValueSymbols.size(); |
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61 while( --i >= 0 ) { |
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62 if( upValueSymbols.get(i).equals(name) ) |
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63 return i; |
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64 } |
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65 if( parent==null ) |
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66 return -1; |
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67 i = parent.stackIndex(name); |
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68 if( i != -1 ) { |
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69 upValueGetters.add(new UpValue.StackGetter(i)); |
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70 } else { |
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71 i = parent.upValueIndex(name); |
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72 if( i == -1 ) |
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73 return -1; |
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74 upValueGetters.add(new UpValue.NestedGetter(i)); |
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75 } |
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76 upValueSymbols.add(name); |
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77 return upValueSymbols.size() - 1; |
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78 } |
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79 } |
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80 |
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81 static final UpValue.Getter[] NO_UP_VALUE_GETTERS = new UpValue.Getter[0]; |
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82 |
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83 int nEquals; |
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84 int parens = 0; |
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85 Frame frame = new Frame(); |
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86 |
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87 boolean nEquals(int n) { |
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88 nEquals = n; |
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89 return true; |
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90 } |
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91 |
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92 boolean incParens() { |
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93 parens++; |
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94 return true; |
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95 } |
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96 |
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97 boolean decParens() { |
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98 parens--; |
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99 return true; |
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100 } |
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101 |
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102 List<String> symbols() { |
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103 return frame.symbols; |
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104 } |
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105 |
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106 int symbolsSize() { |
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107 return frame.symbols.size(); |
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108 } |
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109 |
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110 boolean addSymbol(String name) { |
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111 frame.symbols.add(name); |
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112 if( frame.stackSize < symbolsSize() ) |
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113 frame.stackSize = symbolsSize(); |
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114 return true; |
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115 } |
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116 |
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117 boolean addSymbols(List<String> names) { |
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118 frame.symbols.addAll(names); |
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119 if( frame.stackSize < symbolsSize() ) |
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120 frame.stackSize = symbolsSize(); |
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121 return true; |
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122 } |
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123 |
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124 int stackIndex(String name) { |
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125 return frame.stackIndex(name); |
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126 } |
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127 |
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128 boolean popSymbols(int n) { |
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129 List<String> symbols = frame.symbols; |
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130 while( n-- > 0 ) { |
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131 symbols.remove(symbols.size()-1); |
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132 } |
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133 return true; |
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134 } |
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135 |
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136 int upValueIndex(String name) { |
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137 return frame.upValueIndex(name); |
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138 } |
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139 |
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140 boolean incLoops() { |
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141 frame.loops++; |
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142 return true; |
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143 } |
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144 |
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145 boolean decLoops() { |
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146 frame.loops--; |
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147 return true; |
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148 } |
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149 |
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150 Chunk newChunk() { |
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151 return new Chunk( (Stmt)pop(), frame.stackSize, symbolsSize(), frame.isVarArg, frame.upValueGetters.toArray(NO_UP_VALUE_GETTERS) ); |
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152 } |
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153 |
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154 Rule Target() { |
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155 return Sequence( |
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156 Spaces(), |
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157 FirstOf( |
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158 Sequence( ExpList(), EOI ), |
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159 Sequence( |
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160 action( frame.isVarArg = true ), |
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161 Block(), |
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162 EOI, |
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163 push( newChunk() ) |
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164 ) |
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165 ) |
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166 ); |
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167 } |
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168 |
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169 Rule Block() { |
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170 Var<List<Stmt>> stmts = new Var<List<Stmt>>(new ArrayList<Stmt>()); |
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171 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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172 return Sequence( |
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173 Optional( Stmt(stmts) ), |
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174 ZeroOrMore( |
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175 StmtSep(), |
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176 Optional( Stmt(stmts) ) |
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177 ), |
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178 push( newBlock(stmts.get(),stackStart.get()) ) |
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179 ); |
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180 } |
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181 |
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182 Stmt newBlock(List<Stmt> stmts,int stackStart) { |
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183 int stackEnd = symbolsSize(); |
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184 popSymbols( stackEnd - stackStart ); |
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185 if( stmts.isEmpty() ) |
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186 return Stmt.EMPTY; |
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187 if( stmts.size()==1 && stackStart==stackEnd ) |
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188 return stmts.get(0); |
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189 return new Block( stmts.toArray(new Stmt[0]), stackStart, stackEnd ); |
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190 } |
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191 |
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192 Rule StmtSep() { |
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193 return Sequence( |
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194 FirstOf( |
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195 ';', |
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196 Sequence( |
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197 Optional( "--", ZeroOrMore(NoneOf("\r\n")) ), |
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198 EndOfLine() |
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199 ) |
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200 ), |
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201 Spaces() |
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202 ); |
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203 } |
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204 |
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205 Rule EndOfLine() { |
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206 return FirstOf("\r\n", '\r', '\n'); |
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207 } |
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208 |
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209 Rule Stmt(Var<List<Stmt>> stmts) { |
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210 return FirstOf( |
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211 LocalStmt(stmts), |
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212 Sequence( |
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213 FirstOf( |
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214 ReturnStmt(), |
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215 FunctionStmt(), |
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216 LocalFunctionStmt(), |
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217 BreakStmt(), |
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218 GenericForStmt(), |
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219 NumericForStmt(), |
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220 DoStmt(), |
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221 WhileStmt(), |
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222 RepeatStmt(), |
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223 IfStmt(), |
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224 SetStmt(), |
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225 ExpressionsStmt() |
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226 ), |
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227 stmts.get().add( (Stmt)pop() ) |
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228 ) |
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229 ); |
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230 } |
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231 |
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232 Rule ReturnStmt() { |
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233 return Sequence( |
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234 Keyword("return"), Expressions(), |
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235 push( new ReturnStmt( (Expressions)pop() ) ) |
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236 ); |
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237 } |
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238 |
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239 Rule FunctionStmt() { |
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240 return Sequence( |
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241 Keyword("function"), FnName(), Function(), |
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242 push( new SetStmt( (Settable)pop(1), expr(pop()) ) ) |
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243 ); |
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244 } |
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245 |
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246 Rule FnName() { |
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247 return Sequence( |
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248 push(null), // marker |
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249 Name(), |
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250 ZeroOrMore( |
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251 '.', Spaces(), |
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252 makeVarExp(), |
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253 NameExpr() |
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254 ), |
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255 makeSettableVar() |
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256 ); |
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257 } |
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258 |
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259 Rule LocalFunctionStmt() { |
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260 return Sequence( |
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261 Keyword("local"), Keyword("function"), |
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262 Name(), |
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263 addSymbol( (String)pop() ), |
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264 Function(), |
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265 push( new SetStmt( new SetLocalVar(symbolsSize()-1), expr(pop()) ) ) |
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266 ); |
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267 } |
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268 |
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269 Rule BreakStmt() { |
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270 return Sequence( |
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271 Keyword("break"), |
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272 frame.loops > 0, |
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273 push( new BreakStmt() ) |
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274 ); |
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275 } |
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276 |
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277 Rule GenericForStmt() { |
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278 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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279 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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280 return Sequence( |
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281 Keyword("for"), NameList(names), Keyword("in"), Expr(), Keyword("do"), |
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282 addSymbols(names.get()), |
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283 LoopBlock(), Keyword("end"), |
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284 push( new GenericForStmt( stackStart.get(), symbolsSize() - stackStart.get(), expr(pop(1)), (Stmt)pop() ) ), |
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285 popSymbols( symbolsSize() - stackStart.get() ) |
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286 ); |
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287 } |
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288 |
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289 Rule NumericForStmt() { |
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290 return Sequence( |
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291 Keyword("for"), Name(), '=', Spaces(), Expr(), Keyword("to"), Expr(), |
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292 push( new ConstExpr(new LuaNumber(1)) ), // default step |
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293 Optional( |
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294 Keyword("step"), |
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295 drop(), |
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296 Expr() |
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297 ), |
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298 addSymbol( (String)pop(3) ), // add "for" var to symbols |
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299 Keyword("do"), LoopBlock(), Keyword("end"), |
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300 push( new NumericForStmt( symbolsSize()-1, expr(pop(3)), expr(pop(2)), expr(pop(1)), (Stmt)pop() ) ), |
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301 popSymbols(1) |
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302 ); |
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303 } |
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304 |
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305 Rule DoStmt() { |
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306 return Sequence( |
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307 Keyword("do"), Block(), Keyword("end") |
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308 ); |
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309 } |
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310 |
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311 Rule LocalStmt(Var<List<Stmt>> stmts) { |
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312 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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313 return Sequence( |
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314 Keyword("local"), NameList(names), |
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315 Optional( |
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316 '=', Spaces(), ExpList(), |
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317 stmts.get().add( newSetLocalStmt(names.get().size()) ) |
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318 ), |
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319 addSymbols(names.get()) |
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320 ); |
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321 } |
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322 |
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323 Rule NameList(Var<List<String>> names) { |
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324 return Sequence( |
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325 Name(), |
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326 names.get().add( (String)pop() ), |
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327 ZeroOrMore( |
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328 ',', Spaces(), Name(), |
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329 names.get().add( (String)pop() ) |
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330 ) |
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331 ); |
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332 } |
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333 |
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334 SetStmt newSetLocalStmt(int nVars) { |
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335 Expressions values = (Expressions)pop(); |
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336 SetLocalVar[] vars = new SetLocalVar[nVars]; |
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337 int stackStart = symbolsSize(); |
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338 for( int i=0; i<vars.length; i++ ) { |
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339 vars[i] = new SetLocalVar(stackStart+i); |
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340 } |
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341 return new SetStmt( vars, values ); |
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342 } |
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343 |
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344 Rule WhileStmt() { |
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345 return Sequence( |
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346 Keyword("while"), Expr(), Keyword("do"), LoopBlock(), Keyword("end"), |
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347 push( new WhileStmt( expr(pop(1)), (Stmt)pop() ) ) |
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348 ); |
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349 } |
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350 |
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351 Rule RepeatStmt() { |
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352 return Sequence( |
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353 Keyword("repeat"), LoopBlock(), Keyword("until"), Expr(), |
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354 push( new RepeatStmt( (Stmt)pop(1), expr(pop()) ) ) |
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355 ); |
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356 } |
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357 |
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358 Rule LoopBlock() { |
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359 return Sequence( incLoops(), Block(), decLoops() ); |
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360 } |
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361 |
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362 Rule IfStmt() { |
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363 Var<Integer> n = new Var<Integer>(1); |
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364 return Sequence( |
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365 Keyword("if"), Expr(), Keyword("then"), Block(), |
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366 push(Stmt.EMPTY), |
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367 ZeroOrMore( |
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368 Keyword("elseif"), drop(), Expr(), Keyword("then"), Block(), |
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369 push(Stmt.EMPTY), |
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370 n.set(n.get()+1) |
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371 ), |
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372 Optional( |
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373 Keyword("else"), drop(), Block() |
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374 ), |
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375 Keyword("end"), |
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376 buildIfStmt(n.get()) |
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377 ); |
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378 } |
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379 |
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380 boolean buildIfStmt(int n) { |
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381 while( n-- > 0 ) { |
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382 Stmt elseStmt = (Stmt)pop(); |
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383 Stmt thenStmt = (Stmt)pop(); |
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384 Expr cnd = expr(pop()); |
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385 push( new IfStmt(cnd,thenStmt,elseStmt) ); |
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386 } |
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387 return true; |
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388 } |
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389 |
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390 Rule SetStmt() { |
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391 return Sequence( |
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392 VarList(), |
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393 '=', Spaces(), |
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394 ExpList(), |
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395 push( newSetStmt() ) |
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396 ); |
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397 } |
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398 |
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399 Rule ExpressionsStmt() { |
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400 return Sequence( |
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401 ExpList(), |
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402 push( new ExpressionsStmt((Expressions)pop()) ) |
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403 ); |
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404 } |
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405 |
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406 SetStmt newSetStmt() { |
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407 Expressions values = (Expressions)pop(); |
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408 @SuppressWarnings("unchecked") |
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409 List<Settable> vars = (List<Settable>)pop(); |
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410 return new SetStmt( vars.toArray(new Settable[0]), values ); |
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411 } |
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412 |
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413 Rule VarList() { |
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414 Var<List<Settable>> vars = new Var<List<Settable>>(new ArrayList<Settable>()); |
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415 return Sequence( |
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416 SettableVar(), |
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417 vars.get().add( (Settable)pop() ), |
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418 ZeroOrMore( |
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419 ',', Spaces(), SettableVar(), |
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420 vars.get().add( (Settable)pop() ) |
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421 ), |
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422 push(vars.get()) |
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423 ); |
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424 } |
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425 |
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426 Rule SettableVar() { |
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427 return Sequence( Var(), makeSettableVar() ); |
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428 } |
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429 |
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430 boolean makeSettableVar() { |
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431 Object obj2 = pop(); |
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432 if( obj2==null ) |
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433 return false; |
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434 Object obj1 = pop(); |
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435 if( obj1!=null ) { |
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436 Expr key = expr(obj2); |
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437 Expr table = expr(obj1); |
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438 return push( new SetTableEntry(table,key) ); |
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439 } |
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440 String name = (String)obj2; |
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441 int index = stackIndex(name); |
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442 if( index != -1 ) |
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443 return push( new SetLocalVar(index) ); |
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444 index = upValueIndex(name); |
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445 if( index != -1 ) |
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446 return push( new SetUpVar(index) ); |
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447 return push( new SetTableEntry( env(), new ConstExpr(name) ) ); |
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448 } |
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449 |
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450 Rule Expr() { |
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451 return FirstOf( |
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452 VarArgs(), |
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453 OrExpr() |
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454 ); |
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455 } |
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456 |
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457 Rule OrExpr() { |
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458 return Sequence( |
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459 AndExpr(), |
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460 ZeroOrMore( "or", Spaces(), AndExpr(), push( new OrExpr(expr(pop(1)),expr(pop())) ) ) |
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461 ); |
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462 } |
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463 |
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464 Rule AndExpr() { |
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465 return Sequence( |
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466 RelExpr(), |
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467 ZeroOrMore( "and", Spaces(), RelExpr(), push( new AndExpr(expr(pop(1)),expr(pop())) ) ) |
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468 ); |
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469 } |
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470 |
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471 Rule RelExpr() { |
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472 return Sequence( |
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473 ConcatExpr(), |
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474 ZeroOrMore( |
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475 FirstOf( |
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476 Sequence( "==", Spaces(), ConcatExpr(), push( new EqExpr(expr(pop(1)),expr(pop())) ) ), |
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477 Sequence( "~=", Spaces(), ConcatExpr(), push( new NotExpr(new EqExpr(expr(pop(1)),expr(pop()))) ) ), |
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478 Sequence( "<=", Spaces(), ConcatExpr(), push( new LeExpr(expr(pop(1)),expr(pop())) ) ), |
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479 Sequence( ">=", Spaces(), ConcatExpr(), push( new LeExpr(expr(pop()),expr(pop())) ) ), |
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480 Sequence( "<", Spaces(), ConcatExpr(), push( new LtExpr(expr(pop(1)),expr(pop())) ) ), |
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481 Sequence( ">", Spaces(), ConcatExpr(), push( new LtExpr(expr(pop()),expr(pop())) ) ) |
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482 ) |
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483 ) |
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484 ); |
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485 } |
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486 |
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487 Rule ConcatExpr() { |
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488 return Sequence( |
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489 SumExpr(), |
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490 Optional( "..", Spaces(), ConcatExpr(), push( new ConcatExpr(expr(pop(1)),expr(pop())) ) ) |
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491 ); |
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492 } |
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493 |
7
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494 Rule SumExpr() { |
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495 return Sequence( |
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496 TermExpr(), |
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497 ZeroOrMore( |
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498 FirstOf( |
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499 Sequence( '+', Spaces(), TermExpr(), push( new AddExpr(expr(pop(1)),expr(pop())) ) ), |
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500 Sequence( '-', TestNot('-'), Spaces(), TermExpr(), push( new SubExpr(expr(pop(1)),expr(pop())) ) ) |
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501 ) |
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502 ) |
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503 ); |
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504 } |
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505 |
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506 Rule TermExpr() { |
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507 return Sequence( |
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508 UnaryExpr(), |
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509 ZeroOrMore( |
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510 FirstOf( |
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511 Sequence( '*', Spaces(), UnaryExpr(), push( new MulExpr(expr(pop(1)),expr(pop())) ) ), |
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512 Sequence( '/', Spaces(), UnaryExpr(), push( new DivExpr(expr(pop(1)),expr(pop())) ) ), |
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513 Sequence( '%', Spaces(), UnaryExpr(), push( new ModExpr(expr(pop(1)),expr(pop())) ) ) |
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514 ) |
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515 ) |
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516 ); |
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517 } |
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518 |
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519 Rule UnaryExpr() { |
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520 return FirstOf( |
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521 Sequence( '#', Spaces(), PowExpr(), push( new LenExpr(expr(pop())) ) ), |
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522 Sequence( '-', TestNot('-'), Spaces(), PowExpr(), push( new UnmExpr(expr(pop())) ) ), |
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523 Sequence( "not", Spaces(), PowExpr(), push( new NotExpr(expr(pop())) ) ), |
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524 PowExpr() |
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525 ); |
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526 } |
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527 |
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528 Rule PowExpr() { |
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529 return Sequence( |
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530 SingleExpr(), |
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531 Optional( '^', Spaces(), PowExpr(), push( new PowExpr(expr(pop(1)),expr(pop())) ) ) |
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532 ); |
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533 } |
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534 |
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535 Rule SingleExpr() { |
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536 return FirstOf( |
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537 FunctionExpr(), |
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538 TableExpr(), |
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539 VarExp(), |
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540 LiteralExpr() |
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541 ); |
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542 } |
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543 |
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544 Rule FunctionExpr() { |
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545 return Sequence( "function", Spaces(), Function() ); |
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546 } |
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547 |
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548 Rule Function() { |
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549 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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550 return Sequence( |
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551 '(', incParens(), Spaces(), |
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552 action( frame = new Frame(frame) ), |
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553 Optional( |
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554 FirstOf( |
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555 Sequence( |
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556 NameList(names), addSymbols(names.get()), |
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557 Optional( ',', Spaces(), VarArgName() ) |
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558 ), |
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559 VarArgName() |
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560 ) |
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561 ), |
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562 ')', decParens(), Spaces(), Block(), Keyword("end"), |
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563 push( newChunk() ), |
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564 action( frame = frame.parent ) |
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565 ); |
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566 } |
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567 |
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568 Rule VarArgName() { |
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569 return Sequence( |
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570 "...", Spaces(), |
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571 action( frame.isVarArg = true ) |
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572 ); |
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573 } |
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574 |
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575 Rule VarArgs() { |
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576 return Sequence( |
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577 "...", Spaces(), |
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578 frame.isVarArg, |
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579 push( VarArgs.INSTANCE ) |
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580 ); |
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581 } |
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582 |
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583 Rule TableExpr() { |
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584 Var<List<TableExpr.Field>> fields = new Var<List<TableExpr.Field>>(new ArrayList<TableExpr.Field>()); |
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585 Var<ExpList.Builder> builder = new Var<ExpList.Builder>(new ExpList.Builder()); |
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586 return Sequence( |
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587 '{', incParens(), Spaces(), |
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588 Optional( |
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589 Field(fields,builder), |
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590 ZeroOrMore( |
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591 FieldSep(), |
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592 Field(fields,builder) |
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593 ), |
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594 Optional( FieldSep() ) |
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595 ), |
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596 '}', decParens(), |
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597 Spaces(), |
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598 push( new TableExpr( fields.get().toArray(new TableExpr.Field[0]), builder.get().build() ) ) |
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599 ); |
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600 } |
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601 |
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602 Rule FieldSep() { |
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603 return Sequence( AnyOf(",;"), Spaces() ); |
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604 } |
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605 |
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606 Rule Field(Var<List<TableExpr.Field>> fields,Var<ExpList.Builder> builder) { |
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607 return FirstOf( |
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608 Sequence( |
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609 FirstOf( SubExpr(), NameExpr() ), |
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610 '=', Spaces(), Expr(), |
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611 fields.get().add( new TableExpr.Field( expr(pop(1)), expr(pop()) ) ) |
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612 ), |
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613 Sequence( |
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614 Expr(), |
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615 addToExpList(builder.get()) |
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616 ) |
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617 ); |
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618 } |
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619 |
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620 static Expr expr(Object obj) { |
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621 if( obj instanceof Expressions ) |
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622 return new ExpressionsExpr((Expressions)obj); |
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623 return (Expr)obj; |
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624 } |
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625 |
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626 Rule VarExp() { |
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627 return Sequence( |
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628 Var(), |
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629 makeVarExp() |
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630 ); |
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631 } |
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632 |
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633 Rule Var() { |
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634 return Sequence( |
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635 FirstOf( |
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636 Sequence( |
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637 '(', incParens(), Spaces(), Expr(), ')', decParens(), Spaces(), |
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638 push(expr(pop())), |
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639 push(null) // marker |
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640 ), |
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641 Sequence( |
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642 push(null), // marker |
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643 Name() |
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644 ) |
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645 ), |
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646 ZeroOrMore( |
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647 makeVarExp(), |
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648 FirstOf( |
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649 SubExpr(), |
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650 Sequence( '.', Spaces(), NameExpr() ), |
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651 Sequence( |
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652 Args(), |
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653 push(null) // marker |
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654 ) |
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655 ) |
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656 ) |
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657 ); |
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658 } |
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659 |
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660 Expr env() { |
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661 int index = stackIndex(_ENV); |
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662 if( index != -1 ) |
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663 return new GetLocalVar(index); |
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664 index = upValueIndex(_ENV); |
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665 if( index != -1 ) |
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666 return new GetUpVar(index); |
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667 throw new RuntimeException("_ENV not found"); |
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668 } |
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669 |
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670 boolean makeVarExp() { |
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671 Object obj2 = pop(); |
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672 if( obj2==null ) |
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673 return true; |
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674 Object obj1 = pop(); |
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675 if( obj1 != null ) |
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676 return push( new GetExpr( expr(obj1), expr(obj2) ) ); |
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677 String name = (String)obj2; |
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678 int index = stackIndex(name); |
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679 if( index != -1 ) |
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680 return push( new GetLocalVar(index) ); |
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681 index = upValueIndex(name); |
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682 if( index != -1 ) |
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683 return push( new GetUpVar(index) ); |
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684 return push( new GetExpr( env(), new ConstExpr(name) ) ); |
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685 } |
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686 |
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687 // function should be on top of the stack |
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688 Rule Args() { |
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689 return Sequence( |
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690 FirstOf( |
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691 Sequence( |
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692 '(', incParens(), Spaces(), Expressions(), ')', decParens(), Spaces() |
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693 ), |
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694 Sequence( |
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695 TableExpr(), |
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696 push( new ExpList.SingleExpList(expr(pop())) ) |
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697 ), |
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698 Sequence( |
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699 StringLiteral(), Spaces(), |
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700 push( new ExpList.SingleExpList(new ConstExpr(pop())) ) |
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701 ) |
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702 ), |
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703 push( new FnCall( expr(pop(1)), (Expressions)pop() ) ) |
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704 ); |
9
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705 } |
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706 |
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707 Rule Expressions() { |
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708 return FirstOf( |
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709 ExpList(), |
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710 push( ExpList.emptyExpList ) |
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711 ); |
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712 } |
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713 |
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714 Rule ExpList() { |
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715 Var<ExpList.Builder> builder = new Var<ExpList.Builder>(new ExpList.Builder()); |
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716 return Sequence( |
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717 Expr(), |
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718 addToExpList(builder.get()), |
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719 ZeroOrMore( |
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720 ',', Spaces(), Expr(), |
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721 addToExpList(builder.get()) |
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722 ), |
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723 push( builder.get().build() ) |
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724 ); |
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725 } |
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726 |
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727 boolean addToExpList(ExpList.Builder bld) { |
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728 Object obj = pop(); |
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729 if( obj instanceof Expressions ) { |
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730 bld.add( (Expressions)obj ); |
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731 } else { |
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732 bld.add( (Expr)obj ); |
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733 } |
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734 return true; |
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735 } |
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736 |
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737 Rule SubExpr() { |
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738 return Sequence( '[', incParens(), Spaces(), Expr(), ']', decParens(), Spaces() ); |
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|
739 } |
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
740 |
17
09d41f7490a8
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parents:
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|
741 Rule NameExpr() { |
09d41f7490a8
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parents:
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|
742 return Sequence( |
09d41f7490a8
add local variables
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parents:
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|
743 Name(), |
09d41f7490a8
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parents:
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|
744 push( new ConstExpr((String)pop()) ) |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
745 ); |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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746 } |
09d41f7490a8
add local variables
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parents:
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diff
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|
747 |
9
600676034a1a
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parents:
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diff
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|
748 Rule Name() { |
600676034a1a
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parents:
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diff
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|
749 return Sequence( |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
8
diff
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|
750 Sequence( |
17
09d41f7490a8
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parents:
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|
751 NameFirstChar(), |
09d41f7490a8
add local variables
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parents:
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diff
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|
752 ZeroOrMore( NameChar() ) |
9
600676034a1a
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parents:
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|
753 ), |
17
09d41f7490a8
add local variables
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parents:
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diff
changeset
|
754 !keywords.contains(match()), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
755 push(match()), |
9
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
756 Spaces() |
600676034a1a
add variables and tables
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parents:
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changeset
|
757 ); |
600676034a1a
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parents:
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|
758 } |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
8
diff
changeset
|
759 |
17
09d41f7490a8
add local variables
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parents:
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|
760 Rule NameChar() { |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
761 return FirstOf( NameFirstChar(), Digit() ); |
09d41f7490a8
add local variables
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parents:
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diff
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|
762 } |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
763 |
09d41f7490a8
add local variables
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parents:
16
diff
changeset
|
764 Rule NameFirstChar() { |
9
600676034a1a
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parents:
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|
765 return FirstOf( |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
766 CharRange('a', 'z'), |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
8
diff
changeset
|
767 CharRange('A', 'Z'), |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
8
diff
changeset
|
768 '_' |
600676034a1a
add variables and tables
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parents:
8
diff
changeset
|
769 ); |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
770 } |
600676034a1a
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parents:
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diff
changeset
|
771 |
17
09d41f7490a8
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parents:
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diff
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|
772 Rule Keyword(String keyword) { |
09d41f7490a8
add local variables
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parents:
16
diff
changeset
|
773 return Sequence( |
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parents:
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diff
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|
774 keyword, |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
775 TestNot( NameChar() ), |
09d41f7490a8
add local variables
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parents:
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diff
changeset
|
776 Spaces() |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
777 ); |
12
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
778 } |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
779 |
17
09d41f7490a8
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parents:
16
diff
changeset
|
780 static final Set<String> keywords = new HashSet<String>(Arrays.asList( |
12
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
781 "and", |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
782 "break", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
783 "do", |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
784 "else", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
785 "elseif", |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
786 "end", |
9cea1aea5eef
CmdLine can run files
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parents:
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diff
changeset
|
787 "false", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
788 "for", |
9cea1aea5eef
CmdLine can run files
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parents:
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diff
changeset
|
789 "function", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
790 "goto", |
9cea1aea5eef
CmdLine can run files
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parents:
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diff
changeset
|
791 "if", |
9cea1aea5eef
CmdLine can run files
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parents:
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diff
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|
792 "in", |
9cea1aea5eef
CmdLine can run files
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parents:
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diff
changeset
|
793 "local", |
9cea1aea5eef
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parents:
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diff
changeset
|
794 "nil", |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
795 "not", |
9cea1aea5eef
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parents:
11
diff
changeset
|
796 "or", |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
797 "repeat", |
9cea1aea5eef
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parents:
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changeset
|
798 "return", |
33
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diff
changeset
|
799 "step", |
12
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
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|
800 "then", |
33
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parents:
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diff
changeset
|
801 "to", |
12
9cea1aea5eef
CmdLine can run files
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parents:
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|
802 "true", |
9cea1aea5eef
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
803 "until", |
9cea1aea5eef
CmdLine can run files
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parents:
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diff
changeset
|
804 "while" |
9cea1aea5eef
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parents:
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changeset
|
805 )); |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
806 |
7
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parents:
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diff
changeset
|
807 Rule LiteralExpr() { |
bca8fc5d928b
work on expressions
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parents:
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diff
changeset
|
808 return Sequence( |
bca8fc5d928b
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parents:
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diff
changeset
|
809 Literal(), Spaces(), |
5
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parents:
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changeset
|
810 push(new ConstExpr(pop())) |
9ef0fd711101
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parents:
diff
changeset
|
811 ); |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
812 } |
9ef0fd711101
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parents:
diff
changeset
|
813 |
7
bca8fc5d928b
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parents:
6
diff
changeset
|
814 Rule Literal() { |
5
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parents:
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changeset
|
815 return FirstOf( |
7
bca8fc5d928b
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parents:
6
diff
changeset
|
816 NilLiteral(), |
bca8fc5d928b
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parents:
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diff
changeset
|
817 BooleanLiteral(), |
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
818 NumberLiteral(), |
bca8fc5d928b
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parents:
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diff
changeset
|
819 StringLiteral() |
5
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changeset
|
820 ); |
9ef0fd711101
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parents:
diff
changeset
|
821 } |
9ef0fd711101
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|
822 |
7
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diff
changeset
|
823 Rule NilLiteral() { |
bca8fc5d928b
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parents:
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diff
changeset
|
824 return Sequence( "nil", push(null) ); |
bca8fc5d928b
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diff
changeset
|
825 } |
bca8fc5d928b
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parents:
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diff
changeset
|
826 |
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
827 Rule BooleanLiteral() { |
bca8fc5d928b
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parents:
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changeset
|
828 return FirstOf( |
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parents:
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changeset
|
829 Sequence( "true", push(true) ), |
bca8fc5d928b
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diff
changeset
|
830 Sequence( "false", push(false) ) |
5
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changeset
|
831 ); |
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parents:
diff
changeset
|
832 } |
9ef0fd711101
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parents:
diff
changeset
|
833 |
7
bca8fc5d928b
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diff
changeset
|
834 Rule NumberLiteral() { |
5
9ef0fd711101
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
835 return Sequence( |
6
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|
836 Number(), |
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parents:
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|
837 push(new LuaNumber((Double)pop())) |
5
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start LuaParser
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parents:
diff
changeset
|
838 ); |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
839 } |
9ef0fd711101
start LuaParser
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parents:
diff
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|
840 |
6
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more parsing
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parents:
5
diff
changeset
|
841 Rule Number() { |
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
842 return FirstOf( |
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diff
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|
843 Sequence( |
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parents:
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diff
changeset
|
844 IgnoreCase("0x"), |
16
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finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
845 HexNumber() |
6
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|
846 ), |
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diff
changeset
|
847 Sequence( |
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|
848 DecNumber(), |
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849 push(Double.parseDouble(match())) |
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|
850 ) |
5
9ef0fd711101
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parents:
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|
851 ); |
9ef0fd711101
start LuaParser
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parents:
diff
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|
852 } |
9ef0fd711101
start LuaParser
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|
853 |
6
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changeset
|
854 Rule DecNumber() { |
5
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parents:
diff
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|
855 return FirstOf( |
9ef0fd711101
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parents:
diff
changeset
|
856 Sequence( |
9ef0fd711101
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parents:
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|
857 Int(), |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
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|
858 Optional( '.', Optional(Int()) ), |
11
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add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
9
diff
changeset
|
859 Exponent() |
5
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parents:
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|
860 ), |
11
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
9
diff
changeset
|
861 Sequence( '.', Int(), Exponent() ) |
5
9ef0fd711101
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parents:
diff
changeset
|
862 ); |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
863 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
864 |
11
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
865 Rule Exponent() { |
5
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|
866 return Optional( |
9ef0fd711101
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parents:
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|
867 IgnoreCase('e'), |
9ef0fd711101
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|
868 Optional(AnyOf("+-")), |
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|
869 Int() |
9ef0fd711101
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parents:
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|
870 ); |
9ef0fd711101
start LuaParser
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parents:
diff
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|
871 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
872 |
6
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|
873 Rule Int() { |
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874 return OneOrMore(Digit()); |
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875 } |
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876 |
16
2a30281ef47c
finish number literals;
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parents:
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|
877 Rule Digit() { |
2a30281ef47c
finish number literals;
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parents:
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878 return CharRange('0', '9'); |
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finish number literals;
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|
879 } |
2a30281ef47c
finish number literals;
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parents:
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diff
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|
880 |
2a30281ef47c
finish number literals;
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parents:
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diff
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|
881 Rule HexNumber() { |
2a30281ef47c
finish number literals;
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parents:
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|
882 return FirstOf( |
2a30281ef47c
finish number literals;
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parents:
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|
883 Sequence( |
2a30281ef47c
finish number literals;
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|
884 HexInt(), |
2a30281ef47c
finish number literals;
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parents:
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|
885 push( (double)Long.parseLong(match(),16) ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
886 Optional( '.', Optional(HexDec()) ), |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
887 HexExponent() |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
888 ), |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
889 Sequence( push(0.0), '.', HexDec(), HexExponent() ) |
2a30281ef47c
finish number literals;
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|
890 ); |
2a30281ef47c
finish number literals;
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|
891 } |
2a30281ef47c
finish number literals;
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|
892 |
2a30281ef47c
finish number literals;
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parents:
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diff
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|
893 Rule HexDec() { |
2a30281ef47c
finish number literals;
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|
894 return Sequence( |
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finish number literals;
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|
895 HexInt(), |
2a30281ef47c
finish number literals;
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896 push( (Double)pop() + (double)Long.parseLong(match(),16) / Math.pow(16,matchLength()) ) |
2a30281ef47c
finish number literals;
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|
897 ); |
2a30281ef47c
finish number literals;
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|
898 } |
2a30281ef47c
finish number literals;
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|
899 |
2a30281ef47c
finish number literals;
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parents:
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diff
changeset
|
900 Rule HexExponent() { |
2a30281ef47c
finish number literals;
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parents:
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|
901 return Optional( |
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finish number literals;
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902 IgnoreCase('p'), |
2a30281ef47c
finish number literals;
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|
903 Sequence( |
2a30281ef47c
finish number literals;
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|
904 Optional(AnyOf("+-")), |
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finish number literals;
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|
905 HexInt() |
2a30281ef47c
finish number literals;
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parents:
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|
906 ), |
2a30281ef47c
finish number literals;
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parents:
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|
907 push( (Double)pop() * Math.pow(2,(double)Long.parseLong(match())) ) |
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finish number literals;
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parents:
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diff
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|
908 ); |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
909 } |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
910 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
911 Rule HexInt() { |
2a30281ef47c
finish number literals;
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diff
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912 return OneOrMore(Digit()); |
2a30281ef47c
finish number literals;
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parents:
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diff
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|
913 } |
2a30281ef47c
finish number literals;
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parents:
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diff
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|
914 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff
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|
915 |
6
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more parsing
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diff
changeset
|
916 Rule HexDigit() { |
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|
917 return FirstOf( |
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|
918 Digit(), |
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|
919 AnyOf("abcdefABCDEF") |
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|
920 ); |
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|
921 } |
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more parsing
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|
922 |
7
bca8fc5d928b
work on expressions
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parents:
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diff
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|
923 Rule StringLiteral() { |
6
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924 return FirstOf( |
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|
925 QuotedString('"'), |
16
2a30281ef47c
finish number literals;
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parents:
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diff
changeset
|
926 QuotedString('\''), |
2a30281ef47c
finish number literals;
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parents:
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diff
changeset
|
927 LongString() |
2a30281ef47c
finish number literals;
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diff
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|
928 ); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
929 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
930 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
931 Rule LongString() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
932 return Sequence( |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
933 '[', |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
934 ZeroOrMore('='), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
935 nEquals(matchLength()), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
936 '[', |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
937 ZeroOrMore( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
938 TestNot(LongBracketsEnd()), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
939 ANY |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
940 ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
941 push( match() ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
942 LongBracketsEnd() |
6
a315783c9524
more parsing
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parents:
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|
943 ); |
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more parsing
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parents:
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|
944 } |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
945 |
6
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parents:
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|
946 Rule QuotedString(char quote) { |
17
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add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
947 StringBuilderVar buf = new StringBuilderVar(); |
6
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more parsing
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|
948 return Sequence( |
7
bca8fc5d928b
work on expressions
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diff
changeset
|
949 quote, |
6
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diff
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|
950 ZeroOrMore( |
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more parsing
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parents:
5
diff
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|
951 FirstOf( |
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more parsing
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parents:
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diff
changeset
|
952 Sequence( |
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parents:
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changeset
|
953 NoneOf("\\\n"+quote), |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
954 buf.append(matchedChar()) |
6
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more parsing
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parents:
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diff
changeset
|
955 ), |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
956 EscSeq(buf) |
6
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more parsing
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parents:
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changeset
|
957 ) |
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parents:
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|
958 ), |
7
bca8fc5d928b
work on expressions
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parents:
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diff
changeset
|
959 quote, |
17
09d41f7490a8
add local variables
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parents:
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|
960 push( buf.getString() ) |
6
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parents:
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diff
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|
961 ); |
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parents:
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|
962 } |
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parents:
5
diff
changeset
|
963 |
17
09d41f7490a8
add local variables
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parents:
16
diff
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|
964 Rule EscSeq(StringBuilderVar buf) { |
6
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parents:
5
diff
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|
965 return Sequence( |
7
bca8fc5d928b
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parents:
6
diff
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|
966 '\\', |
6
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|
967 FirstOf( |
17
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add local variables
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parents:
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diff
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|
968 Sequence( 'a', buf.append('\u0007') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
969 Sequence( 'b', buf.append('\b') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
970 Sequence( 'f', buf.append('\f') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
971 Sequence( 'n', buf.append('\n') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
972 Sequence( 'r', buf.append('\r') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
973 Sequence( 't', buf.append('\t') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
974 Sequence( 'v', buf.append('\u000b') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
975 Sequence( '\\', buf.append('\\') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
976 Sequence( '"', buf.append('"') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
977 Sequence( '\'', buf.append('\'') ), |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
978 Sequence( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
979 'x', |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
980 Sequence( HexDigit(), HexDigit() ), |
17
09d41f7490a8
add local variables
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parents:
16
diff
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|
981 buf.append( (char)Integer.parseInt(match(),16) ) |
7
bca8fc5d928b
work on expressions
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parents:
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diff
changeset
|
982 ), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
983 Sequence( |
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
984 Sequence( |
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
985 Digit(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
986 Optional( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
987 Digit(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
988 Optional( |
bca8fc5d928b
work on expressions
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parents:
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diff
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|
989 Digit() |
bca8fc5d928b
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parents:
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diff
changeset
|
990 ) |
bca8fc5d928b
work on expressions
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parents:
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diff
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|
991 ) |
bca8fc5d928b
work on expressions
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parents:
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diff
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|
992 ), |
17
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parents:
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993 buf.append( (char)Integer.parseInt(match()) ) |
7
bca8fc5d928b
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diff
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|
994 ) |
6
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995 ) |
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996 ); |
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997 } |
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|
998 |
12
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
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|
999 Rule Spaces() { |
14
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1000 return ZeroOrMore( |
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parents:
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1001 FirstOf( |
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1002 AnyOf(" \t"), |
2ddf85634d20
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|
1003 Comment(), |
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1004 Sequence( '\\', EndOfLine() ), |
16
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1005 Sequence( AnyOf("\r\n"), parens > 0 ) |
14
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whitespace handling;
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1006 ) |
2ddf85634d20
whitespace handling;
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|
1007 ); |
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whitespace handling;
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|
1008 } |
2ddf85634d20
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1009 |
2ddf85634d20
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1010 Rule Comment() { |
2ddf85634d20
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1011 return Sequence( |
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1012 "--[", |
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1013 ZeroOrMore('='), |
16
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1014 nEquals(matchLength()), |
14
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1015 '[', |
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whitespace handling;
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1016 ZeroOrMore( |
16
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1017 TestNot(LongBracketsEnd()), |
14
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1018 ANY |
2ddf85634d20
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1019 ), |
16
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|
1020 LongBracketsEnd() |
14
2ddf85634d20
whitespace handling;
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|
1021 ); |
2ddf85634d20
whitespace handling;
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1022 } |
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whitespace handling;
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1023 |
16
2a30281ef47c
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1024 Rule LongBracketsEnd() { |
2a30281ef47c
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1025 return Sequence( ']', ZeroOrMore('='), nEquals==matchLength(), ']' ); |
7
bca8fc5d928b
work on expressions
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changeset
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1026 } |
bca8fc5d928b
work on expressions
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changeset
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1027 |
18
3971113699b8
add NumericForStmt
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1028 static boolean action(Object obj) { |
3971113699b8
add NumericForStmt
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parents:
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1029 return true; |
3971113699b8
add NumericForStmt
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diff
changeset
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1030 } |
3971113699b8
add NumericForStmt
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changeset
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1031 |
12
9cea1aea5eef
CmdLine can run files
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changeset
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1032 // for debugging |
14
2ddf85634d20
whitespace handling;
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changeset
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1033 boolean print(Object o) { |
2ddf85634d20
whitespace handling;
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1034 System.out.println(o); |
12
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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changeset
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1035 return true; |
9cea1aea5eef
CmdLine can run files
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changeset
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1036 } |
9cea1aea5eef
CmdLine can run files
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changeset
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1037 |
5
9ef0fd711101
start LuaParser
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diff
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1038 } |