Mercurial Hosting > luan
annotate src/luan/interp/LuaParser.java @ 35:e51906de0f11
implement metatables
git-svn-id: https://luan-java.googlecode.com/svn/trunk@36 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Tue, 18 Dec 2012 07:05:58 +0000 |
parents | 0cdc1da466ee |
children | e3624b7cd603 |
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 |
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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 |
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24 class LuaParser extends BaseParser<Object> { |
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25 |
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26 static final String _ENV = "_ENV"; |
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27 |
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28 static final class Frame { |
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29 final Frame parent; |
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30 final List<String> symbols = new ArrayList<String>(); |
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31 int stackSize = 0; |
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32 int loops = 0; |
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33 boolean isVarArg = false; |
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34 final List<String> upValueSymbols = new ArrayList<String>(); |
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35 final List<UpValue.Getter> upValueGetters = new ArrayList<UpValue.Getter>(); |
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36 |
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37 Frame() { |
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38 this.parent = null; |
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39 upValueSymbols.add(_ENV); |
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40 upValueGetters.add(UpValue.globalGetter); |
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41 } |
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42 |
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43 Frame(Frame parent) { |
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44 this.parent = parent; |
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45 } |
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46 |
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47 int stackIndex(String name) { |
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48 int i = symbols.size(); |
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49 while( --i >= 0 ) { |
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50 if( symbols.get(i).equals(name) ) |
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51 return i; |
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52 } |
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53 return -1; |
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54 } |
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55 |
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56 int upValueIndex(String name) { |
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57 int i = upValueSymbols.size(); |
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58 while( --i >= 0 ) { |
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59 if( upValueSymbols.get(i).equals(name) ) |
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60 return i; |
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61 } |
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62 if( parent==null ) |
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63 return -1; |
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64 i = parent.stackIndex(name); |
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65 if( i != -1 ) { |
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66 upValueGetters.add(new UpValue.StackGetter(i)); |
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67 } else { |
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68 i = parent.upValueIndex(name); |
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69 if( i == -1 ) |
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70 return -1; |
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71 upValueGetters.add(new UpValue.NestedGetter(i)); |
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72 } |
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73 upValueSymbols.add(name); |
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74 return upValueSymbols.size() - 1; |
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75 } |
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76 } |
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77 |
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78 static final UpValue.Getter[] NO_UP_VALUE_GETTERS = new UpValue.Getter[0]; |
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79 |
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80 int nEquals; |
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81 int parens = 0; |
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82 Frame frame = new Frame(); |
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83 |
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84 boolean nEquals(int n) { |
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85 nEquals = n; |
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86 return true; |
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87 } |
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88 |
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89 boolean incParens() { |
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90 parens++; |
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91 return true; |
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92 } |
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93 |
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94 boolean decParens() { |
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95 parens--; |
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96 return true; |
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97 } |
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98 |
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99 List<String> symbols() { |
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100 return frame.symbols; |
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101 } |
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102 |
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103 int symbolsSize() { |
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104 return frame.symbols.size(); |
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105 } |
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106 |
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107 boolean addSymbol(String name) { |
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108 frame.symbols.add(name); |
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109 if( frame.stackSize < symbolsSize() ) |
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110 frame.stackSize = symbolsSize(); |
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111 return true; |
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112 } |
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113 |
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114 boolean addSymbols(List<String> names) { |
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115 frame.symbols.addAll(names); |
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116 if( frame.stackSize < symbolsSize() ) |
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117 frame.stackSize = symbolsSize(); |
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118 return true; |
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119 } |
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120 |
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121 int stackIndex(String name) { |
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122 return frame.stackIndex(name); |
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123 } |
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124 |
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125 boolean popSymbols(int n) { |
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126 List<String> symbols = frame.symbols; |
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127 while( n-- > 0 ) { |
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128 symbols.remove(symbols.size()-1); |
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129 } |
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130 return true; |
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131 } |
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132 |
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133 int upValueIndex(String name) { |
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134 return frame.upValueIndex(name); |
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135 } |
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136 |
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137 boolean incLoops() { |
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138 frame.loops++; |
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139 return true; |
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140 } |
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141 |
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142 boolean decLoops() { |
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143 frame.loops--; |
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144 return true; |
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145 } |
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146 |
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147 Chunk newChunk() { |
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148 return new Chunk( (Stmt)pop(), frame.stackSize, symbolsSize(), frame.isVarArg, frame.upValueGetters.toArray(NO_UP_VALUE_GETTERS) ); |
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149 } |
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150 |
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151 Rule Target() { |
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152 return Sequence( |
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153 Spaces(), |
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154 FirstOf( |
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155 Sequence( ExpList(), EOI ), |
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156 Sequence( |
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157 action( frame.isVarArg = true ), |
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158 Block(), |
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159 EOI, |
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160 push( newChunk() ) |
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161 ) |
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162 ) |
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163 ); |
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164 } |
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165 |
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166 Rule Block() { |
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167 Var<List<Stmt>> stmts = new Var<List<Stmt>>(new ArrayList<Stmt>()); |
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168 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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169 return Sequence( |
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170 Optional( Stmt(stmts) ), |
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171 ZeroOrMore( |
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172 StmtSep(), |
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173 Optional( Stmt(stmts) ) |
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174 ), |
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175 push( newBlock(stmts.get(),stackStart.get()) ) |
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176 ); |
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177 } |
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178 |
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179 Stmt newBlock(List<Stmt> stmts,int stackStart) { |
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180 int stackEnd = symbolsSize(); |
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181 popSymbols( stackEnd - stackStart ); |
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182 if( stmts.isEmpty() ) |
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183 return Stmt.EMPTY; |
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184 if( stmts.size()==1 && stackStart==stackEnd ) |
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185 return stmts.get(0); |
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186 return new Block( stmts.toArray(new Stmt[0]), stackStart, stackEnd ); |
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187 } |
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188 |
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189 Rule StmtSep() { |
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190 return Sequence( |
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191 FirstOf( |
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192 ';', |
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193 Sequence( |
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194 Optional( "--", ZeroOrMore(NoneOf("\r\n")) ), |
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195 EndOfLine() |
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196 ) |
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197 ), |
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198 Spaces() |
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199 ); |
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200 } |
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201 |
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202 Rule EndOfLine() { |
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203 return FirstOf("\r\n", '\r', '\n'); |
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204 } |
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205 |
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206 Rule Stmt(Var<List<Stmt>> stmts) { |
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207 return FirstOf( |
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208 LocalStmt(stmts), |
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209 Sequence( |
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210 FirstOf( |
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211 ReturnStmt(), |
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212 FunctionStmt(), |
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213 LocalFunctionStmt(), |
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214 BreakStmt(), |
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215 GenericForStmt(), |
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216 NumericForStmt(), |
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217 DoStmt(), |
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218 WhileStmt(), |
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219 RepeatStmt(), |
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220 IfStmt(), |
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221 SetStmt(), |
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222 ExpressionsStmt() |
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223 ), |
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224 stmts.get().add( (Stmt)pop() ) |
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225 ) |
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226 ); |
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227 } |
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228 |
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229 Rule ReturnStmt() { |
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230 return Sequence( |
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231 Keyword("return"), Expressions(), |
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232 push( new ReturnStmt( (Expressions)pop() ) ) |
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233 ); |
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234 } |
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235 |
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236 Rule FunctionStmt() { |
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237 return Sequence( |
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238 Keyword("function"), FnName(), Function(), |
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239 push( new SetStmt( (Settable)pop(1), expr(pop()) ) ) |
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240 ); |
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241 } |
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242 |
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243 Rule FnName() { |
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244 return Sequence( |
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245 push(null), // marker |
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246 Name(), |
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247 ZeroOrMore( |
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248 '.', Spaces(), |
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249 makeVarExp(), |
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250 NameExpr() |
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251 ), |
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252 makeSettableVar() |
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253 ); |
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254 } |
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255 |
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256 Rule LocalFunctionStmt() { |
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257 return Sequence( |
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258 Keyword("local"), Keyword("function"), |
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259 Name(), |
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260 addSymbol( (String)pop() ), |
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261 Function(), |
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262 push( new SetStmt( new SetLocalVar(symbolsSize()-1), expr(pop()) ) ) |
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263 ); |
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264 } |
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265 |
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266 Rule BreakStmt() { |
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267 return Sequence( |
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268 Keyword("break"), |
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269 frame.loops > 0, |
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270 push( new BreakStmt() ) |
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271 ); |
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272 } |
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273 |
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274 Rule GenericForStmt() { |
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275 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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276 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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277 return Sequence( |
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278 Keyword("for"), NameList(names), Keyword("in"), Expr(), Keyword("do"), |
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279 addSymbols(names.get()), |
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280 LoopBlock(), Keyword("end"), |
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281 push( new GenericForStmt( stackStart.get(), symbolsSize() - stackStart.get(), expr(pop(1)), (Stmt)pop() ) ), |
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282 popSymbols( symbolsSize() - stackStart.get() ) |
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283 ); |
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284 } |
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285 |
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286 Rule NumericForStmt() { |
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287 return Sequence( |
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288 Keyword("for"), Name(), '=', Spaces(), Expr(), Keyword("to"), Expr(), |
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289 push( new ConstExpr(new LuaNumber(1)) ), // default step |
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290 Optional( |
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291 Keyword("step"), |
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292 drop(), |
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293 Expr() |
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294 ), |
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295 addSymbol( (String)pop(3) ), // add "for" var to symbols |
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296 Keyword("do"), LoopBlock(), Keyword("end"), |
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297 push( new NumericForStmt( symbolsSize()-1, expr(pop(3)), expr(pop(2)), expr(pop(1)), (Stmt)pop() ) ), |
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298 popSymbols(1) |
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299 ); |
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300 } |
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301 |
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302 Rule DoStmt() { |
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303 return Sequence( |
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304 Keyword("do"), Block(), Keyword("end") |
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305 ); |
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306 } |
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307 |
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308 Rule LocalStmt(Var<List<Stmt>> stmts) { |
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309 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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310 return Sequence( |
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311 Keyword("local"), NameList(names), |
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312 Optional( |
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313 '=', Spaces(), ExpList(), |
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314 stmts.get().add( newSetLocalStmt(names.get().size()) ) |
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315 ), |
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316 addSymbols(names.get()) |
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317 ); |
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318 } |
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319 |
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320 Rule NameList(Var<List<String>> names) { |
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321 return Sequence( |
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322 Name(), |
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323 names.get().add( (String)pop() ), |
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324 ZeroOrMore( |
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325 ',', Spaces(), Name(), |
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326 names.get().add( (String)pop() ) |
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327 ) |
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328 ); |
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329 } |
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330 |
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331 SetStmt newSetLocalStmt(int nVars) { |
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332 Expressions values = (Expressions)pop(); |
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333 SetLocalVar[] vars = new SetLocalVar[nVars]; |
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334 int stackStart = symbolsSize(); |
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335 for( int i=0; i<vars.length; i++ ) { |
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336 vars[i] = new SetLocalVar(stackStart+i); |
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337 } |
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338 return new SetStmt( vars, values ); |
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339 } |
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340 |
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341 Rule WhileStmt() { |
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342 return Sequence( |
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343 Keyword("while"), Expr(), Keyword("do"), LoopBlock(), Keyword("end"), |
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344 push( new WhileStmt( expr(pop(1)), (Stmt)pop() ) ) |
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345 ); |
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346 } |
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347 |
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348 Rule RepeatStmt() { |
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349 return Sequence( |
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350 Keyword("repeat"), LoopBlock(), Keyword("until"), Expr(), |
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351 push( new RepeatStmt( (Stmt)pop(1), expr(pop()) ) ) |
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352 ); |
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353 } |
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354 |
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355 Rule LoopBlock() { |
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356 return Sequence( incLoops(), Block(), decLoops() ); |
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357 } |
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358 |
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359 Rule IfStmt() { |
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360 Var<Integer> n = new Var<Integer>(1); |
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361 return Sequence( |
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362 Keyword("if"), Expr(), Keyword("then"), Block(), |
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363 push(Stmt.EMPTY), |
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364 ZeroOrMore( |
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365 Keyword("elseif"), drop(), Expr(), Keyword("then"), Block(), |
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366 push(Stmt.EMPTY), |
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367 n.set(n.get()+1) |
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368 ), |
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369 Optional( |
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370 Keyword("else"), drop(), Block() |
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371 ), |
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372 Keyword("end"), |
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373 buildIfStmt(n.get()) |
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374 ); |
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375 } |
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376 |
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377 boolean buildIfStmt(int n) { |
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378 while( n-- > 0 ) { |
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379 Stmt elseStmt = (Stmt)pop(); |
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380 Stmt thenStmt = (Stmt)pop(); |
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381 Expr cnd = expr(pop()); |
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382 push( new IfStmt(cnd,thenStmt,elseStmt) ); |
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383 } |
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384 return true; |
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385 } |
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386 |
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387 Rule SetStmt() { |
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388 return Sequence( |
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389 VarList(), |
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390 '=', Spaces(), |
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391 ExpList(), |
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392 push( newSetStmt() ) |
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393 ); |
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394 } |
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395 |
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396 Rule ExpressionsStmt() { |
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397 return Sequence( |
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398 ExpList(), |
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399 push( new ExpressionsStmt((Expressions)pop()) ) |
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400 ); |
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401 } |
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402 |
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403 SetStmt newSetStmt() { |
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404 Expressions values = (Expressions)pop(); |
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405 @SuppressWarnings("unchecked") |
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406 List<Settable> vars = (List<Settable>)pop(); |
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407 return new SetStmt( vars.toArray(new Settable[0]), values ); |
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408 } |
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409 |
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410 Rule VarList() { |
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411 Var<List<Settable>> vars = new Var<List<Settable>>(new ArrayList<Settable>()); |
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412 return Sequence( |
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413 SettableVar(), |
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414 vars.get().add( (Settable)pop() ), |
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415 ZeroOrMore( |
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416 ',', Spaces(), SettableVar(), |
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417 vars.get().add( (Settable)pop() ) |
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418 ), |
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419 push(vars.get()) |
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420 ); |
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421 } |
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422 |
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423 Rule SettableVar() { |
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424 return Sequence( Var(), makeSettableVar() ); |
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425 } |
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426 |
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427 boolean makeSettableVar() { |
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428 Object obj2 = pop(); |
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429 if( obj2==null ) |
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430 return false; |
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431 Object obj1 = pop(); |
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432 if( obj1!=null ) { |
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433 Expr key = expr(obj2); |
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434 Expr table = expr(obj1); |
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435 return push( new SetTableEntry(table,key) ); |
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436 } |
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437 String name = (String)obj2; |
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438 int index = stackIndex(name); |
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439 if( index != -1 ) |
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440 return push( new SetLocalVar(index) ); |
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441 index = upValueIndex(name); |
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442 if( index != -1 ) |
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443 return push( new SetUpVar(index) ); |
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444 return push( new SetTableEntry( env(), new ConstExpr(name) ) ); |
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445 } |
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446 |
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447 Rule Expr() { |
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448 return FirstOf( |
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449 VarArgs(), |
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450 OrExpr() |
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451 ); |
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452 } |
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453 |
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454 Rule OrExpr() { |
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455 return Sequence( |
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456 AndExpr(), |
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457 ZeroOrMore( "or", Spaces(), AndExpr(), push( new OrExpr(expr(pop(1)),expr(pop())) ) ) |
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458 ); |
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459 } |
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460 |
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461 Rule AndExpr() { |
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462 return Sequence( |
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463 RelExpr(), |
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464 ZeroOrMore( "and", Spaces(), RelExpr(), push( new AndExpr(expr(pop(1)),expr(pop())) ) ) |
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465 ); |
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466 } |
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467 |
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468 Rule RelExpr() { |
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469 return Sequence( |
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470 ConcatExpr(), |
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471 ZeroOrMore( |
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472 FirstOf( |
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473 Sequence( "==", Spaces(), ConcatExpr(), push( new EqExpr(expr(pop(1)),expr(pop())) ) ), |
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474 Sequence( "~=", Spaces(), ConcatExpr(), push( new NotExpr(new EqExpr(expr(pop(1)),expr(pop()))) ) ), |
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475 Sequence( "<=", Spaces(), ConcatExpr(), push( new LeExpr(expr(pop(1)),expr(pop())) ) ), |
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476 Sequence( ">=", Spaces(), ConcatExpr(), push( new LeExpr(expr(pop()),expr(pop())) ) ), |
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477 Sequence( "<", Spaces(), ConcatExpr(), push( new LtExpr(expr(pop(1)),expr(pop())) ) ), |
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478 Sequence( ">", Spaces(), ConcatExpr(), push( new LtExpr(expr(pop()),expr(pop())) ) ) |
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479 ) |
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480 ) |
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481 ); |
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482 } |
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483 |
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484 Rule ConcatExpr() { |
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485 return Sequence( |
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486 SumExpr(), |
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487 Optional( "..", Spaces(), ConcatExpr(), push( new ConcatExpr(expr(pop(1)),expr(pop())) ) ) |
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488 ); |
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489 } |
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490 |
7
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491 Rule SumExpr() { |
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492 return Sequence( |
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493 TermExpr(), |
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494 ZeroOrMore( |
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495 FirstOf( |
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496 Sequence( '+', Spaces(), TermExpr(), push( new AddExpr(expr(pop(1)),expr(pop())) ) ), |
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497 Sequence( '-', TestNot('-'), Spaces(), TermExpr(), push( new SubExpr(expr(pop(1)),expr(pop())) ) ) |
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498 ) |
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499 ) |
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500 ); |
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501 } |
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502 |
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503 Rule TermExpr() { |
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504 return Sequence( |
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505 UnaryExpr(), |
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506 ZeroOrMore( |
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507 FirstOf( |
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508 Sequence( '*', Spaces(), UnaryExpr(), push( new MulExpr(expr(pop(1)),expr(pop())) ) ), |
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509 Sequence( '/', Spaces(), UnaryExpr(), push( new DivExpr(expr(pop(1)),expr(pop())) ) ), |
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510 Sequence( '%', Spaces(), UnaryExpr(), push( new ModExpr(expr(pop(1)),expr(pop())) ) ) |
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511 ) |
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512 ) |
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513 ); |
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514 } |
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515 |
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516 Rule UnaryExpr() { |
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517 return FirstOf( |
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518 Sequence( '#', Spaces(), PowExpr(), push( new LenExpr(expr(pop())) ) ), |
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519 Sequence( '-', TestNot('-'), Spaces(), PowExpr(), push( new UnmExpr(expr(pop())) ) ), |
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520 Sequence( "not", Spaces(), PowExpr(), push( new NotExpr(expr(pop())) ) ), |
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521 PowExpr() |
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522 ); |
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523 } |
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524 |
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525 Rule PowExpr() { |
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526 return Sequence( |
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527 SingleExpr(), |
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528 Optional( '^', Spaces(), PowExpr(), push( new PowExpr(expr(pop(1)),expr(pop())) ) ) |
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529 ); |
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530 } |
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531 |
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532 Rule SingleExpr() { |
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533 return FirstOf( |
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534 FunctionExpr(), |
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535 TableExpr(), |
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536 VarExp(), |
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537 LiteralExpr() |
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538 ); |
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539 } |
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540 |
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541 Rule FunctionExpr() { |
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542 return Sequence( "function", Spaces(), Function() ); |
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543 } |
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544 |
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545 Rule Function() { |
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546 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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547 return Sequence( |
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548 '(', incParens(), Spaces(), |
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549 action( frame = new Frame(frame) ), |
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550 Optional( |
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551 FirstOf( |
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552 Sequence( |
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553 NameList(names), addSymbols(names.get()), |
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554 Optional( ',', Spaces(), VarArgName() ) |
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555 ), |
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556 VarArgName() |
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557 ) |
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558 ), |
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559 ')', decParens(), Spaces(), Block(), Keyword("end"), |
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560 push( newChunk() ), |
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561 action( frame = frame.parent ) |
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562 ); |
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563 } |
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564 |
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565 Rule VarArgName() { |
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566 return Sequence( |
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567 "...", Spaces(), |
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568 action( frame.isVarArg = true ) |
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569 ); |
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570 } |
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571 |
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572 Rule VarArgs() { |
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573 return Sequence( |
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574 "...", Spaces(), |
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575 frame.isVarArg, |
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576 push( VarArgs.INSTANCE ) |
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577 ); |
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578 } |
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579 |
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580 Rule TableExpr() { |
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581 Var<List<TableExpr.Field>> fields = new Var<List<TableExpr.Field>>(new ArrayList<TableExpr.Field>()); |
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582 Var<ExpList.Builder> builder = new Var<ExpList.Builder>(new ExpList.Builder()); |
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583 return Sequence( |
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584 '{', incParens(), Spaces(), |
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585 Optional( |
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586 Field(fields,builder), |
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587 ZeroOrMore( |
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588 FieldSep(), |
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589 Field(fields,builder) |
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590 ), |
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591 Optional( FieldSep() ) |
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592 ), |
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593 '}', decParens(), |
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594 Spaces(), |
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595 push( new TableExpr( fields.get().toArray(new TableExpr.Field[0]), builder.get().build() ) ) |
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596 ); |
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597 } |
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598 |
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599 Rule FieldSep() { |
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600 return Sequence( AnyOf(",;"), Spaces() ); |
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601 } |
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602 |
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603 Rule Field(Var<List<TableExpr.Field>> fields,Var<ExpList.Builder> builder) { |
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604 return FirstOf( |
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605 Sequence( |
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606 FirstOf( SubExpr(), NameExpr() ), |
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607 '=', Spaces(), Expr(), |
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608 fields.get().add( new TableExpr.Field( expr(pop(1)), expr(pop()) ) ) |
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609 ), |
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610 Sequence( |
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611 Expr(), |
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612 addToExpList(builder.get()) |
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613 ) |
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614 ); |
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615 } |
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616 |
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617 static Expr expr(Object obj) { |
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618 if( obj instanceof Expressions ) |
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619 return new ExpressionsExpr((Expressions)obj); |
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620 return (Expr)obj; |
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621 } |
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622 |
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623 Rule VarExp() { |
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624 return Sequence( |
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625 Var(), |
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626 makeVarExp() |
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627 ); |
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628 } |
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629 |
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630 Rule Var() { |
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631 return Sequence( |
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632 FirstOf( |
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633 Sequence( |
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634 '(', incParens(), Spaces(), Expr(), ')', decParens(), Spaces(), |
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635 push(expr(pop())), |
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636 push(null) // marker |
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637 ), |
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638 Sequence( |
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639 push(null), // marker |
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640 Name() |
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641 ) |
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642 ), |
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643 ZeroOrMore( |
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644 makeVarExp(), |
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645 FirstOf( |
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646 SubExpr(), |
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647 Sequence( '.', Spaces(), NameExpr() ), |
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648 Sequence( |
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649 Args(), |
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650 push(null) // marker |
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651 ) |
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652 ) |
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653 ) |
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654 ); |
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655 } |
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656 |
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657 Expr env() { |
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658 int index = stackIndex(_ENV); |
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659 if( index != -1 ) |
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660 return new GetLocalVar(index); |
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661 index = upValueIndex(_ENV); |
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662 if( index != -1 ) |
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663 return new GetUpVar(index); |
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664 throw new RuntimeException("_ENV not found"); |
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665 } |
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666 |
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667 boolean makeVarExp() { |
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668 Object obj2 = pop(); |
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669 if( obj2==null ) |
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670 return true; |
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671 Object obj1 = pop(); |
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672 if( obj1 != null ) |
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673 return push( new IndexExpr( expr(obj1), expr(obj2) ) ); |
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674 String name = (String)obj2; |
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675 int index = stackIndex(name); |
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676 if( index != -1 ) |
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677 return push( new GetLocalVar(index) ); |
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678 index = upValueIndex(name); |
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679 if( index != -1 ) |
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680 return push( new GetUpVar(index) ); |
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681 return push( new IndexExpr( env(), new ConstExpr(name) ) ); |
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682 } |
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683 |
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684 // function should be on top of the stack |
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685 Rule Args() { |
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686 return Sequence( |
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687 FirstOf( |
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688 Sequence( |
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689 '(', incParens(), Spaces(), Expressions(), ')', decParens(), Spaces() |
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690 ), |
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691 Sequence( |
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692 TableExpr(), |
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693 push( new ExpList.SingleExpList(expr(pop())) ) |
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694 ), |
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695 Sequence( |
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696 StringLiteral(), Spaces(), |
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697 push( new ExpList.SingleExpList(new ConstExpr(pop())) ) |
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698 ) |
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699 ), |
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700 push( new FnCall( expr(pop(1)), (Expressions)pop() ) ) |
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701 ); |
9
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702 } |
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703 |
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704 Rule Expressions() { |
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705 return FirstOf( |
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706 ExpList(), |
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707 push( ExpList.emptyExpList ) |
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708 ); |
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709 } |
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710 |
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711 Rule ExpList() { |
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712 Var<ExpList.Builder> builder = new Var<ExpList.Builder>(new ExpList.Builder()); |
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713 return Sequence( |
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714 Expr(), |
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715 addToExpList(builder.get()), |
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716 ZeroOrMore( |
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717 ',', Spaces(), Expr(), |
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718 addToExpList(builder.get()) |
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719 ), |
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720 push( builder.get().build() ) |
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721 ); |
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722 } |
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723 |
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724 boolean addToExpList(ExpList.Builder bld) { |
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725 Object obj = pop(); |
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726 if( obj instanceof Expressions ) { |
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727 bld.add( (Expressions)obj ); |
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728 } else { |
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729 bld.add( (Expr)obj ); |
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730 } |
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731 return true; |
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732 } |
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733 |
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734 Rule SubExpr() { |
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735 return Sequence( '[', incParens(), Spaces(), Expr(), ']', decParens(), Spaces() ); |
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736 } |
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737 |
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738 Rule NameExpr() { |
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parents:
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|
739 return Sequence( |
09d41f7490a8
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|
740 Name(), |
09d41f7490a8
add local variables
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parents:
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|
741 push( new ConstExpr((String)pop()) ) |
09d41f7490a8
add local variables
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parents:
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|
742 ); |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
743 } |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
744 |
9
600676034a1a
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parents:
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diff
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|
745 Rule Name() { |
600676034a1a
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parents:
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|
746 return Sequence( |
600676034a1a
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parents:
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|
747 Sequence( |
17
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|
748 NameFirstChar(), |
09d41f7490a8
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parents:
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|
749 ZeroOrMore( NameChar() ) |
9
600676034a1a
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parents:
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|
750 ), |
17
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|
751 !keywords.contains(match()), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
752 push(match()), |
9
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add variables and tables
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|
753 Spaces() |
600676034a1a
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|
754 ); |
600676034a1a
add variables and tables
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parents:
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|
755 } |
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parents:
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|
756 |
17
09d41f7490a8
add local variables
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parents:
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diff
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|
757 Rule NameChar() { |
09d41f7490a8
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
758 return FirstOf( NameFirstChar(), Digit() ); |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
759 } |
09d41f7490a8
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parents:
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diff
changeset
|
760 |
09d41f7490a8
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parents:
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|
761 Rule NameFirstChar() { |
9
600676034a1a
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parents:
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diff
changeset
|
762 return FirstOf( |
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parents:
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changeset
|
763 CharRange('a', 'z'), |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
8
diff
changeset
|
764 CharRange('A', 'Z'), |
600676034a1a
add variables and tables
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parents:
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diff
changeset
|
765 '_' |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
766 ); |
600676034a1a
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parents:
8
diff
changeset
|
767 } |
600676034a1a
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parents:
8
diff
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|
768 |
17
09d41f7490a8
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parents:
16
diff
changeset
|
769 Rule Keyword(String keyword) { |
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parents:
16
diff
changeset
|
770 return Sequence( |
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parents:
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diff
changeset
|
771 keyword, |
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parents:
16
diff
changeset
|
772 TestNot( NameChar() ), |
09d41f7490a8
add local variables
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parents:
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diff
changeset
|
773 Spaces() |
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parents:
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diff
changeset
|
774 ); |
12
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
775 } |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
776 |
17
09d41f7490a8
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parents:
16
diff
changeset
|
777 static final Set<String> keywords = new HashSet<String>(Arrays.asList( |
12
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
778 "and", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
779 "break", |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
780 "do", |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
781 "else", |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
782 "elseif", |
9cea1aea5eef
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
783 "end", |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
784 "false", |
9cea1aea5eef
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parents:
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diff
changeset
|
785 "for", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
786 "function", |
9cea1aea5eef
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
787 "goto", |
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
788 "if", |
9cea1aea5eef
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
789 "in", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
790 "local", |
9cea1aea5eef
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parents:
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diff
changeset
|
791 "nil", |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
792 "not", |
9cea1aea5eef
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parents:
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diff
changeset
|
793 "or", |
9cea1aea5eef
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
794 "repeat", |
9cea1aea5eef
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parents:
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diff
changeset
|
795 "return", |
33
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32
diff
changeset
|
796 "step", |
12
9cea1aea5eef
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parents:
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diff
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|
797 "then", |
33
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parents:
32
diff
changeset
|
798 "to", |
12
9cea1aea5eef
CmdLine can run files
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changeset
|
799 "true", |
9cea1aea5eef
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parents:
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|
800 "until", |
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parents:
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diff
changeset
|
801 "while" |
9cea1aea5eef
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parents:
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|
802 )); |
9cea1aea5eef
CmdLine can run files
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parents:
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|
803 |
7
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
804 Rule LiteralExpr() { |
bca8fc5d928b
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parents:
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diff
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|
805 return Sequence( |
bca8fc5d928b
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parents:
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diff
changeset
|
806 Literal(), Spaces(), |
5
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parents:
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changeset
|
807 push(new ConstExpr(pop())) |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
808 ); |
9ef0fd711101
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parents:
diff
changeset
|
809 } |
9ef0fd711101
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parents:
diff
changeset
|
810 |
7
bca8fc5d928b
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parents:
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diff
changeset
|
811 Rule Literal() { |
5
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parents:
diff
changeset
|
812 return FirstOf( |
7
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diff
changeset
|
813 NilLiteral(), |
bca8fc5d928b
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parents:
6
diff
changeset
|
814 BooleanLiteral(), |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
815 NumberLiteral(), |
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
816 StringLiteral() |
5
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parents:
diff
changeset
|
817 ); |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
818 } |
9ef0fd711101
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parents:
diff
changeset
|
819 |
7
bca8fc5d928b
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parents:
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diff
changeset
|
820 Rule NilLiteral() { |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
821 return Sequence( "nil", push(null) ); |
bca8fc5d928b
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parents:
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diff
changeset
|
822 } |
bca8fc5d928b
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parents:
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diff
changeset
|
823 |
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
824 Rule BooleanLiteral() { |
bca8fc5d928b
work on expressions
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parents:
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changeset
|
825 return FirstOf( |
bca8fc5d928b
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parents:
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diff
changeset
|
826 Sequence( "true", push(true) ), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
827 Sequence( "false", push(false) ) |
5
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parents:
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changeset
|
828 ); |
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parents:
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changeset
|
829 } |
9ef0fd711101
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parents:
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changeset
|
830 |
7
bca8fc5d928b
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parents:
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diff
changeset
|
831 Rule NumberLiteral() { |
5
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parents:
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changeset
|
832 return Sequence( |
6
a315783c9524
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parents:
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|
833 Number(), |
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parents:
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diff
changeset
|
834 push(new LuaNumber((Double)pop())) |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
835 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
836 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
837 |
6
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
838 Rule Number() { |
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
839 return FirstOf( |
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
840 Sequence( |
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
841 IgnoreCase("0x"), |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
842 HexNumber() |
6
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more parsing
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parents:
5
diff
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|
843 ), |
a315783c9524
more parsing
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parents:
5
diff
changeset
|
844 Sequence( |
a315783c9524
more parsing
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parents:
5
diff
changeset
|
845 DecNumber(), |
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
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|
846 push(Double.parseDouble(match())) |
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more parsing
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parents:
5
diff
changeset
|
847 ) |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
848 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
849 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
850 |
6
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more parsing
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parents:
5
diff
changeset
|
851 Rule DecNumber() { |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
852 return FirstOf( |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
853 Sequence( |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
854 Int(), |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
855 Optional( '.', Optional(Int()) ), |
11
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
9
diff
changeset
|
856 Exponent() |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
857 ), |
11
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
9
diff
changeset
|
858 Sequence( '.', Int(), Exponent() ) |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
859 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
860 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
861 |
11
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
9
diff
changeset
|
862 Rule Exponent() { |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
863 return Optional( |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
864 IgnoreCase('e'), |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
865 Optional(AnyOf("+-")), |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
866 Int() |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
867 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
868 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
869 |
6
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more parsing
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parents:
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diff
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|
870 Rule Int() { |
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more parsing
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parents:
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|
871 return OneOrMore(Digit()); |
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|
872 } |
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more parsing
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parents:
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diff
changeset
|
873 |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
874 Rule Digit() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
875 return CharRange('0', '9'); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
876 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
877 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
878 Rule HexNumber() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
879 return FirstOf( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
880 Sequence( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
881 HexInt(), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
882 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
|
883 Optional( '.', Optional(HexDec()) ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
884 HexExponent() |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
885 ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
886 Sequence( push(0.0), '.', HexDec(), HexExponent() ) |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
887 ); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
888 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
889 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
890 Rule HexDec() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
891 return Sequence( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
892 HexInt(), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
893 push( (Double)pop() + (double)Long.parseLong(match(),16) / Math.pow(16,matchLength()) ) |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
894 ); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
895 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
896 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
897 Rule HexExponent() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
898 return Optional( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
899 IgnoreCase('p'), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
900 Sequence( |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
901 Optional(AnyOf("+-")), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
902 HexInt() |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
903 ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
904 push( (Double)pop() * Math.pow(2,(double)Long.parseLong(match())) ) |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
905 ); |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
906 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
907 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
908 Rule HexInt() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
909 return OneOrMore(Digit()); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
912 |
6
a315783c9524
more parsing
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parents:
5
diff
changeset
|
913 Rule HexDigit() { |
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more parsing
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parents:
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diff
changeset
|
914 return FirstOf( |
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more parsing
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diff
changeset
|
915 Digit(), |
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more parsing
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parents:
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diff
changeset
|
916 AnyOf("abcdefABCDEF") |
a315783c9524
more parsing
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diff
changeset
|
917 ); |
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more parsing
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changeset
|
918 } |
a315783c9524
more parsing
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parents:
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diff
changeset
|
919 |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
920 Rule StringLiteral() { |
6
a315783c9524
more parsing
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|
921 return FirstOf( |
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more parsing
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parents:
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diff
changeset
|
922 QuotedString('"'), |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
923 QuotedString('\''), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
924 LongString() |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
925 ); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
926 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
927 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
928 Rule LongString() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
929 return Sequence( |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
930 '[', |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
931 ZeroOrMore('='), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
932 nEquals(matchLength()), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
933 '[', |
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 TestNot(LongBracketsEnd()), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
936 ANY |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
937 ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
938 push( match() ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
939 LongBracketsEnd() |
6
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
940 ); |
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parents:
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diff
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|
941 } |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
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|
942 |
6
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parents:
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diff
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|
943 Rule QuotedString(char quote) { |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
944 StringBuilderVar buf = new StringBuilderVar(); |
6
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
945 return Sequence( |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff
changeset
|
946 quote, |
6
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
947 ZeroOrMore( |
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
948 FirstOf( |
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
949 Sequence( |
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
950 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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|
951 buf.append(matchedChar()) |
6
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more parsing
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parents:
5
diff
changeset
|
952 ), |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
953 EscSeq(buf) |
6
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
954 ) |
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more parsing
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parents:
5
diff
changeset
|
955 ), |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
956 quote, |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
957 push( buf.getString() ) |
6
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more parsing
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parents:
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diff
changeset
|
958 ); |
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more parsing
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parents:
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diff
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|
959 } |
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more parsing
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parents:
5
diff
changeset
|
960 |
17
09d41f7490a8
add local variables
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parents:
16
diff
changeset
|
961 Rule EscSeq(StringBuilderVar buf) { |
6
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
962 return Sequence( |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
963 '\\', |
6
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
964 FirstOf( |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
965 Sequence( 'a', buf.append('\u0007') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
966 Sequence( 'b', buf.append('\b') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
967 Sequence( 'f', buf.append('\f') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
968 Sequence( 'n', buf.append('\n') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
969 Sequence( 'r', buf.append('\r') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
970 Sequence( 't', buf.append('\t') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
971 Sequence( 'v', buf.append('\u000b') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
972 Sequence( '\\', buf.append('\\') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
973 Sequence( '"', buf.append('"') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
974 Sequence( '\'', buf.append('\'') ), |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
975 Sequence( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
976 'x', |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
977 Sequence( HexDigit(), HexDigit() ), |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
978 buf.append( (char)Integer.parseInt(match(),16) ) |
7
bca8fc5d928b
work on expressions
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parents:
6
diff
changeset
|
979 ), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
980 Sequence( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
981 Sequence( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
982 Digit(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
983 Optional( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
984 Digit(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
985 Optional( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
986 Digit() |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
987 ) |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
988 ) |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
989 ), |
17
09d41f7490a8
add local variables
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parents:
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diff
changeset
|
990 buf.append( (char)Integer.parseInt(match()) ) |
7
bca8fc5d928b
work on expressions
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diff
changeset
|
991 ) |
6
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diff
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|
992 ) |
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|
993 ); |
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parents:
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|
994 } |
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more parsing
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parents:
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diff
changeset
|
995 |
12
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
996 Rule Spaces() { |
14
2ddf85634d20
whitespace handling;
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parents:
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|
997 return ZeroOrMore( |
2ddf85634d20
whitespace handling;
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parents:
12
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|
998 FirstOf( |
2ddf85634d20
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parents:
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changeset
|
999 AnyOf(" \t"), |
2ddf85634d20
whitespace handling;
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parents:
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diff
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|
1000 Comment(), |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
1001 Sequence( '\\', EndOfLine() ), |
16
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
1002 Sequence( AnyOf("\r\n"), parens > 0 ) |
14
2ddf85634d20
whitespace handling;
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|
1003 ) |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
1004 ); |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
1005 } |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
1006 |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
1007 Rule Comment() { |
2ddf85634d20
whitespace handling;
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|
1008 return Sequence( |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff
changeset
|
1009 "--[", |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
1010 ZeroOrMore('='), |
16
2a30281ef47c
finish number literals;
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parents:
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|
1011 nEquals(matchLength()), |
14
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
1012 '[', |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
1013 ZeroOrMore( |
16
2a30281ef47c
finish number literals;
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|
1014 TestNot(LongBracketsEnd()), |
14
2ddf85634d20
whitespace handling;
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changeset
|
1015 ANY |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
1016 ), |
16
2a30281ef47c
finish number literals;
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diff
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|
1017 LongBracketsEnd() |
14
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
1018 ); |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
1019 } |
2ddf85634d20
whitespace handling;
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|
1020 |
16
2a30281ef47c
finish number literals;
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|
1021 Rule LongBracketsEnd() { |
2a30281ef47c
finish number literals;
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|
1022 return Sequence( ']', ZeroOrMore('='), nEquals==matchLength(), ']' ); |
7
bca8fc5d928b
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|
1023 } |
bca8fc5d928b
work on expressions
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|
1024 |
18
3971113699b8
add NumericForStmt
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|
1025 static boolean action(Object obj) { |
3971113699b8
add NumericForStmt
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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1026 return true; |
3971113699b8
add NumericForStmt
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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changeset
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1027 } |
3971113699b8
add NumericForStmt
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
17
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changeset
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1028 |
12
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
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changeset
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1029 // for debugging |
14
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
12
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1030 boolean print(Object o) { |
2ddf85634d20
whitespace handling;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
12
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1031 System.out.println(o); |
12
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
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1032 return true; |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
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changeset
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1033 } |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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changeset
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1034 |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
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1035 } |