Mercurial Hosting > luan
annotate src/luan/interp/LuanParser.java @ 65:1ff53a88579a
multi-line statements
git-svn-id: https://luan-java.googlecode.com/svn/trunk@66 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Thu, 17 Jan 2013 23:09:50 +0000 |
parents | a68ccb7aaa9c |
children | 8ea2e94f3318 |
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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 org.parboiled.annotations.Cached; |
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20 import luan.Luan; |
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21 import luan.LuanState; |
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22 import luan.LuanSource; |
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23 |
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24 |
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25 class LuanParser extends BaseParser<Object> { |
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26 |
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27 LuanSource source; |
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28 |
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29 LuanSource.Element se(int start) { |
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30 return new LuanSource.Element(source,start,currentIndex()); |
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31 } |
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32 |
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33 static final String _ENV = "_ENV"; |
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34 |
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35 static final class Frame { |
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36 final Frame parent; |
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37 final List<String> symbols = new ArrayList<String>(); |
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38 int stackSize = 0; |
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39 int loops = 0; |
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40 boolean isVarArg = false; |
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41 final List<String> upValueSymbols = new ArrayList<String>(); |
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42 final List<UpValue.Getter> upValueGetters = new ArrayList<UpValue.Getter>(); |
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43 |
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44 Frame() { |
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45 this.parent = null; |
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46 upValueSymbols.add(_ENV); |
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47 upValueGetters.add(UpValue.globalGetter); |
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48 } |
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49 |
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50 Frame(Frame parent) { |
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51 this.parent = parent; |
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52 } |
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53 |
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54 int stackIndex(String name) { |
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55 int i = symbols.size(); |
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56 while( --i >= 0 ) { |
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57 if( symbols.get(i).equals(name) ) |
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58 return i; |
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59 } |
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60 return -1; |
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61 } |
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62 |
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63 int upValueIndex(String name) { |
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64 int i = upValueSymbols.size(); |
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65 while( --i >= 0 ) { |
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66 if( upValueSymbols.get(i).equals(name) ) |
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67 return i; |
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68 } |
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69 if( parent==null ) |
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70 return -1; |
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71 i = parent.stackIndex(name); |
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72 if( i != -1 ) { |
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73 upValueGetters.add(new UpValue.StackGetter(i)); |
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74 } else { |
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75 i = parent.upValueIndex(name); |
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76 if( i == -1 ) |
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77 return -1; |
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78 upValueGetters.add(new UpValue.NestedGetter(i)); |
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79 } |
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80 upValueSymbols.add(name); |
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81 return upValueSymbols.size() - 1; |
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82 } |
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83 } |
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84 |
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85 static final UpValue.Getter[] NO_UP_VALUE_GETTERS = new UpValue.Getter[0]; |
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86 |
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87 int nEquals; |
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88 Frame frame = new Frame(); |
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89 |
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90 boolean nEquals(int n) { |
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91 nEquals = n; |
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92 return true; |
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93 } |
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94 |
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95 List<String> symbols() { |
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96 return frame.symbols; |
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97 } |
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98 |
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99 int symbolsSize() { |
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100 return frame.symbols.size(); |
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101 } |
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102 |
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103 boolean addSymbol(String name) { |
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104 frame.symbols.add(name); |
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105 if( frame.stackSize < symbolsSize() ) |
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106 frame.stackSize = symbolsSize(); |
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107 return true; |
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108 } |
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109 |
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110 boolean addSymbols(List<String> names) { |
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111 frame.symbols.addAll(names); |
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112 if( frame.stackSize < symbolsSize() ) |
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113 frame.stackSize = symbolsSize(); |
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114 return true; |
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115 } |
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116 |
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117 int stackIndex(String name) { |
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118 return frame.stackIndex(name); |
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119 } |
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120 |
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121 boolean popSymbols(int n) { |
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122 List<String> symbols = frame.symbols; |
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123 while( n-- > 0 ) { |
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124 symbols.remove(symbols.size()-1); |
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125 } |
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126 return true; |
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127 } |
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128 |
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129 int upValueIndex(String name) { |
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130 return frame.upValueIndex(name); |
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131 } |
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132 |
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133 boolean incLoops() { |
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134 frame.loops++; |
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135 return true; |
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136 } |
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137 |
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138 boolean decLoops() { |
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139 frame.loops--; |
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140 return true; |
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141 } |
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142 |
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143 Chunk newChunk(int start) { |
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144 return new Chunk( se(start), (Stmt)pop(), frame.stackSize, symbolsSize(), frame.isVarArg, frame.upValueGetters.toArray(NO_UP_VALUE_GETTERS) ); |
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145 } |
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146 |
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147 Rule Target() { |
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148 Var<Integer> start = new Var<Integer>(); |
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149 return Sequence( |
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150 Spaces(false), |
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151 start.set(currentIndex()), |
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152 FirstOf( |
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153 Sequence( |
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154 ExpList(false), |
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155 push( new ReturnStmt( se(start.get()), (Expressions)pop() ) ), |
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156 push( newChunk(start.get()) ), |
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157 EOI |
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158 ), |
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159 Sequence( |
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160 action( frame.isVarArg = true ), |
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161 Block(), |
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162 push( newChunk(start.get()) ), |
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163 EOI |
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164 ) |
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165 ) |
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166 ); |
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167 } |
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168 |
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169 Rule Block() { |
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170 Var<List<Stmt>> stmts = new Var<List<Stmt>>(new ArrayList<Stmt>()); |
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171 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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172 return Sequence( |
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173 Optional( Stmt(stmts) ), |
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174 ZeroOrMore( |
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175 StmtSep(), |
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176 Optional( Stmt(stmts) ) |
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177 ), |
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178 push( newBlock(stmts.get(),stackStart.get()) ) |
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179 ); |
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180 } |
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181 |
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182 Stmt newBlock(List<Stmt> stmts,int stackStart) { |
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183 int stackEnd = symbolsSize(); |
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184 popSymbols( stackEnd - stackStart ); |
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185 if( stmts.isEmpty() ) |
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186 return Stmt.EMPTY; |
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187 if( stmts.size()==1 && stackStart==stackEnd ) |
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188 return stmts.get(0); |
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189 return new Block( stmts.toArray(new Stmt[0]), stackStart, stackEnd ); |
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190 } |
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191 |
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192 Rule StmtSep() { |
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193 return Sequence( |
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194 FirstOf( |
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195 ';', |
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196 Sequence( |
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197 Optional( "--", ZeroOrMore(NoneOf("\r\n")) ), |
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198 EndOfLine() |
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199 ) |
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200 ), |
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201 Spaces(false) |
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202 ); |
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203 } |
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204 |
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205 Rule EndOfLine() { |
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206 return FirstOf("\r\n", '\r', '\n'); |
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207 } |
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208 |
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209 Rule Stmt(Var<List<Stmt>> stmts) { |
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210 return FirstOf( |
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211 LocalStmt(stmts), |
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212 Sequence( |
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213 FirstOf( |
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214 OutputStmt(), |
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215 ReturnStmt(), |
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216 FunctionStmt(), |
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217 LocalFunctionStmt(), |
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218 BreakStmt(), |
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219 GenericForStmt(), |
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220 NumericForStmt(), |
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221 TryStmt(), |
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222 DoStmt(), |
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223 WhileStmt(), |
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224 RepeatStmt(), |
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225 IfStmt(), |
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226 SetStmt(), |
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227 ExpressionsStmt() |
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228 ), |
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229 stmts.get().add( (Stmt)pop() ) |
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230 ) |
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231 ); |
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232 } |
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233 |
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234 Rule OutputStmt() { |
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235 Var<Integer> start = new Var<Integer>(); |
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236 Var<ExpList.Builder> builder = new Var<ExpList.Builder>(new ExpList.Builder()); |
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237 return Sequence( |
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238 start.set(currentIndex()), |
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239 "%>", Optional( EndOfLine() ), |
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240 ZeroOrMore( |
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241 FirstOf( |
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242 Sequence( |
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243 OneOrMore( |
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244 TestNot("<%"), |
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245 ANY |
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246 ), |
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247 addToExpList(builder.get(),new ConstExpr(match())) |
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248 ), |
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249 Sequence( |
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250 "<%=", Spaces(false), |
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251 Expr(false), |
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252 addToExpList(builder.get()), |
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253 "%>" |
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254 ) |
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255 ) |
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256 ), |
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257 "<%", Spaces(false), |
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258 push( new OutputStmt( se(start.get()), builder.get().build() ) ) |
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259 ); |
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260 } |
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261 |
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262 Rule ReturnStmt() { |
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263 Var<Integer> start = new Var<Integer>(); |
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264 return Sequence( |
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265 start.set(currentIndex()), |
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266 Keyword("return",false), Expressions(false), |
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267 push( new ReturnStmt( se(start.get()), (Expressions)pop() ) ) |
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268 ); |
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269 } |
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270 |
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271 Rule FunctionStmt() { |
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272 return Sequence( |
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273 Keyword("function",false), FnName(), Function(false), |
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274 push( new SetStmt( (Settable)pop(1), expr(pop()) ) ) |
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275 ); |
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276 } |
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277 |
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278 Rule FnName() { |
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279 Var<Integer> start = new Var<Integer>(); |
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280 return Sequence( |
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281 start.set(currentIndex()), |
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282 push(null), // marker |
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283 Name(false), |
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284 ZeroOrMore( |
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285 '.', Spaces(false), |
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286 makeVarExp(start.get()), |
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287 NameExpr(false) |
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288 ), |
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289 makeSettableVar(start.get()) |
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290 ); |
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291 } |
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292 |
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293 Rule LocalFunctionStmt() { |
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294 return Sequence( |
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295 Keyword("local",false), Keyword("function",false), |
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296 Name(false), |
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297 addSymbol( (String)pop() ), |
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298 Function(false), |
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299 push( new SetStmt( new SetLocalVar(symbolsSize()-1), expr(pop()) ) ) |
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300 ); |
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301 } |
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302 |
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303 Rule BreakStmt() { |
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304 return Sequence( |
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305 Keyword("break",false), |
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306 frame.loops > 0, |
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307 push( new BreakStmt() ) |
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308 ); |
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309 } |
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310 |
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311 Rule GenericForStmt() { |
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312 Var<Integer> start = new Var<Integer>(); |
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313 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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314 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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315 return Sequence( |
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316 start.set(currentIndex()), |
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317 Keyword("for",false), NameList(false,names), Keyword("in",false), Expr(false), Keyword("do",false), |
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318 addSymbols(names.get()), |
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319 LoopBlock(), Keyword("end",false), |
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320 push( new GenericForStmt( se(start.get()), stackStart.get(), symbolsSize() - stackStart.get(), expr(pop(1)), (Stmt)pop() ) ), |
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321 popSymbols( symbolsSize() - stackStart.get() ) |
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322 ); |
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323 } |
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324 |
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325 Rule NumericForStmt() { |
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326 Var<Integer> start = new Var<Integer>(); |
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327 return Sequence( |
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328 start.set(currentIndex()), |
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329 Keyword("for",false), Name(false), '=', Spaces(false), Expr(false), Keyword("to",false), Expr(false), |
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330 push( new ConstExpr(1) ), // default step |
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331 Optional( |
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332 Keyword("step",false), |
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333 drop(), |
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334 Expr(false) |
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335 ), |
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336 addSymbol( (String)pop(3) ), // add "for" var to symbols |
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337 Keyword("do",false), LoopBlock(), Keyword("end",false), |
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338 push( new NumericForStmt( se(start.get()), symbolsSize()-1, expr(pop(3)), expr(pop(2)), expr(pop(1)), (Stmt)pop() ) ), |
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339 popSymbols(1) |
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340 ); |
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341 } |
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342 |
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343 Rule TryStmt() { |
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344 return Sequence( |
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345 Keyword("try",false), Block(), |
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346 Keyword("catch",false), Name(false), addSymbol( (String)pop() ), |
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347 Keyword("do",false), Block(), Keyword("end",false), |
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348 push( new TryStmt( (Stmt)pop(1), symbolsSize()-1, (Stmt)pop() ) ), |
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349 popSymbols(1) |
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350 ); |
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351 } |
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352 |
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353 Rule DoStmt() { |
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354 return Sequence( |
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355 Keyword("do",false), Block(), Keyword("end",false) |
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356 ); |
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357 } |
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358 |
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359 Rule LocalStmt(Var<List<Stmt>> stmts) { |
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360 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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361 return Sequence( |
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362 Keyword("local",false), NameList(false,names), |
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363 Optional( |
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364 '=', Spaces(false), ExpList(false), |
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365 stmts.get().add( newSetLocalStmt(names.get().size()) ) |
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366 ), |
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367 addSymbols(names.get()) |
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368 ); |
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369 } |
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370 |
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371 Rule NameList(boolean inParens,Var<List<String>> names) { |
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372 return Sequence( |
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373 Name(inParens), |
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374 names.get().add( (String)pop() ), |
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375 ZeroOrMore( |
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376 ',', Spaces(inParens), Name(inParens), |
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377 names.get().add( (String)pop() ) |
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378 ) |
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379 ); |
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380 } |
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381 |
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382 SetStmt newSetLocalStmt(int nVars) { |
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383 Expressions values = (Expressions)pop(); |
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384 SetLocalVar[] vars = new SetLocalVar[nVars]; |
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385 int stackStart = symbolsSize(); |
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386 for( int i=0; i<vars.length; i++ ) { |
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387 vars[i] = new SetLocalVar(stackStart+i); |
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388 } |
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389 return new SetStmt( vars, values ); |
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390 } |
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391 |
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392 Rule WhileStmt() { |
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393 return Sequence( |
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394 Keyword("while",false), Expr(false), Keyword("do",false), LoopBlock(), Keyword("end",false), |
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395 push( new WhileStmt( expr(pop(1)), (Stmt)pop() ) ) |
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396 ); |
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397 } |
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398 |
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399 Rule RepeatStmt() { |
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400 return Sequence( |
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401 Keyword("repeat",false), LoopBlock(), Keyword("until",false), Expr(false), |
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402 push( new RepeatStmt( (Stmt)pop(1), expr(pop()) ) ) |
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403 ); |
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404 } |
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405 |
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406 Rule LoopBlock() { |
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407 return Sequence( incLoops(), Block(), decLoops() ); |
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408 } |
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409 |
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410 Rule IfStmt() { |
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411 Var<Integer> n = new Var<Integer>(1); |
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412 return Sequence( |
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413 Keyword("if",false), Expr(false), Keyword("then",false), Block(), |
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414 push(Stmt.EMPTY), |
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415 ZeroOrMore( |
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416 Keyword("elseif",false), drop(), Expr(false), Keyword("then",false), Block(), |
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417 push(Stmt.EMPTY), |
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418 n.set(n.get()+1) |
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419 ), |
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420 Optional( |
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421 Keyword("else",false), drop(), Block() |
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422 ), |
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423 Keyword("end",false), |
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424 buildIfStmt(n.get()) |
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425 ); |
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426 } |
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427 |
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428 boolean buildIfStmt(int n) { |
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429 while( n-- > 0 ) { |
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430 Stmt elseStmt = (Stmt)pop(); |
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431 Stmt thenStmt = (Stmt)pop(); |
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432 Expr cnd = expr(pop()); |
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433 push( new IfStmt(cnd,thenStmt,elseStmt) ); |
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434 } |
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435 return true; |
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436 } |
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437 |
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438 Rule SetStmt() { |
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439 return Sequence( |
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440 VarList(), |
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441 '=', Spaces(false), |
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442 ExpList(false), |
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443 push( newSetStmt() ) |
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444 ); |
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445 } |
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446 |
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447 Rule ExpressionsStmt() { |
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448 return Sequence( |
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449 ExpList(false), |
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450 push( new ExpressionsStmt((Expressions)pop()) ) |
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451 ); |
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452 } |
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453 |
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454 SetStmt newSetStmt() { |
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455 Expressions values = (Expressions)pop(); |
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456 @SuppressWarnings("unchecked") |
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457 List<Settable> vars = (List<Settable>)pop(); |
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458 return new SetStmt( vars.toArray(new Settable[0]), values ); |
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459 } |
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460 |
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461 Rule VarList() { |
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462 Var<List<Settable>> vars = new Var<List<Settable>>(new ArrayList<Settable>()); |
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463 return Sequence( |
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464 SettableVar(), |
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465 vars.get().add( (Settable)pop() ), |
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466 ZeroOrMore( |
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467 ',', Spaces(false), SettableVar(), |
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468 vars.get().add( (Settable)pop() ) |
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469 ), |
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470 push(vars.get()) |
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471 ); |
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472 } |
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473 |
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474 Rule SettableVar() { |
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475 Var<Integer> start = new Var<Integer>(); |
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476 return Sequence( |
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477 start.set(currentIndex()), |
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478 Var(false), |
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479 makeSettableVar(start.get()) |
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480 ); |
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481 } |
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482 |
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483 boolean makeSettableVar(int start) { |
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484 Object obj2 = pop(); |
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485 if( obj2==null ) |
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486 return false; |
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487 Object obj1 = pop(); |
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488 if( obj1!=null ) { |
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489 Expr key = expr(obj2); |
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490 Expr table = expr(obj1); |
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491 return push( new SetTableEntry(se(start),table,key) ); |
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492 } |
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493 String name = (String)obj2; |
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494 int index = stackIndex(name); |
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495 if( index != -1 ) |
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496 return push( new SetLocalVar(index) ); |
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497 index = upValueIndex(name); |
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498 if( index != -1 ) |
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499 return push( new SetUpVar(index) ); |
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500 return push( new SetTableEntry( se(start), env(), new ConstExpr(name) ) ); |
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501 } |
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502 |
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503 @Cached |
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504 Rule Expr(boolean inParens) { |
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505 return FirstOf( |
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506 VarArgs(inParens), |
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507 OrExpr(inParens) |
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508 ); |
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509 } |
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510 |
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511 @Cached |
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512 Rule OrExpr(boolean inParens) { |
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513 Var<Integer> start = new Var<Integer>(); |
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514 return Sequence( |
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515 start.set(currentIndex()), |
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516 AndExpr(inParens), |
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517 ZeroOrMore( Keyword("or",inParens), AndExpr(inParens), push( new OrExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ) |
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518 ); |
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519 } |
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520 |
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521 @Cached |
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522 Rule AndExpr(boolean inParens) { |
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523 Var<Integer> start = new Var<Integer>(); |
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524 return Sequence( |
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525 start.set(currentIndex()), |
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526 RelExpr(inParens), |
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527 ZeroOrMore( Keyword("and",inParens), RelExpr(inParens), push( new AndExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ) |
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528 ); |
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529 } |
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530 |
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531 @Cached |
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532 Rule RelExpr(boolean inParens) { |
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533 Var<Integer> start = new Var<Integer>(); |
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534 return Sequence( |
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535 start.set(currentIndex()), |
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536 ConcatExpr(inParens), |
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537 ZeroOrMore( |
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538 FirstOf( |
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539 Sequence( "==", Spaces(inParens), ConcatExpr(inParens), push( new EqExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ), |
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540 Sequence( "~=", Spaces(inParens), ConcatExpr(inParens), push( new NotExpr(se(start.get()),new EqExpr(se(start.get()),expr(pop(1)),expr(pop()))) ) ), |
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541 Sequence( "<=", Spaces(inParens), ConcatExpr(inParens), push( new LeExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ), |
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542 Sequence( ">=", Spaces(inParens), ConcatExpr(inParens), push( new LeExpr(se(start.get()),expr(pop()),expr(pop())) ) ), |
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543 Sequence( "<", Spaces(inParens), ConcatExpr(inParens), push( new LtExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ), |
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544 Sequence( ">", Spaces(inParens), ConcatExpr(inParens), push( new LtExpr(se(start.get()),expr(pop()),expr(pop())) ) ) |
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545 ) |
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546 ) |
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547 ); |
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548 } |
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549 |
65
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550 @Cached |
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551 Rule ConcatExpr(boolean inParens) { |
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552 Var<Integer> start = new Var<Integer>(); |
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553 return Sequence( |
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554 start.set(currentIndex()), |
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555 SumExpr(inParens), |
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556 Optional( "..", Spaces(inParens), ConcatExpr(inParens), push( new ConcatExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ) |
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557 ); |
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558 } |
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559 |
65
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560 @Cached |
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561 Rule SumExpr(boolean inParens) { |
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562 Var<Integer> start = new Var<Integer>(); |
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563 return Sequence( |
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564 start.set(currentIndex()), |
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565 TermExpr(inParens), |
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566 ZeroOrMore( |
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567 FirstOf( |
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568 Sequence( '+', Spaces(inParens), TermExpr(inParens), push( new AddExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ), |
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569 Sequence( '-', TestNot('-'), Spaces(inParens), TermExpr(inParens), push( new SubExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ) |
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570 ) |
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571 ) |
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572 ); |
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573 } |
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574 |
65
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575 @Cached |
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576 Rule TermExpr(boolean inParens) { |
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577 Var<Integer> start = new Var<Integer>(); |
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578 return Sequence( |
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579 start.set(currentIndex()), |
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580 UnaryExpr(inParens), |
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581 ZeroOrMore( |
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582 FirstOf( |
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583 Sequence( '*', Spaces(inParens), UnaryExpr(inParens), push( new MulExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ), |
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584 Sequence( '/', Spaces(inParens), UnaryExpr(inParens), push( new DivExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ), |
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585 Sequence( '%', Spaces(inParens), UnaryExpr(inParens), push( new ModExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ) |
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586 ) |
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587 ) |
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588 ); |
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589 } |
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590 |
65
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591 @Cached |
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592 Rule UnaryExpr(boolean inParens) { |
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593 Var<Integer> start = new Var<Integer>(); |
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594 return Sequence( |
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595 start.set(currentIndex()), |
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596 FirstOf( |
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597 Sequence( '#', Spaces(inParens), PowExpr(inParens), push( new LenExpr(se(start.get()),expr(pop())) ) ), |
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598 Sequence( '-', TestNot('-'), Spaces(inParens), PowExpr(inParens), push( new UnmExpr(se(start.get()),expr(pop())) ) ), |
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599 Sequence( Keyword("not",inParens), PowExpr(inParens), push( new NotExpr(se(start.get()),expr(pop())) ) ), |
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600 PowExpr(inParens) |
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601 ) |
8
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602 ); |
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603 } |
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604 |
65
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605 @Cached |
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606 Rule PowExpr(boolean inParens) { |
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607 Var<Integer> start = new Var<Integer>(); |
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608 return Sequence( |
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609 start.set(currentIndex()), |
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610 SingleExpr(inParens), |
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611 Optional( '^', Spaces(inParens), PowExpr(inParens), push( new PowExpr(se(start.get()),expr(pop(1)),expr(pop())) ) ) |
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612 ); |
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613 } |
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614 |
65
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615 @Cached |
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616 Rule SingleExpr(boolean inParens) { |
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617 return FirstOf( |
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618 FunctionExpr(inParens), |
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619 TableExpr(inParens), |
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620 VarExp(inParens), |
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621 Literal(inParens) |
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622 ); |
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623 } |
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624 |
65
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625 @Cached |
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626 Rule FunctionExpr(boolean inParens) { |
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627 return Sequence( "function", Spaces(inParens), Function(inParens) ); |
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628 } |
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629 |
65
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630 @Cached |
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631 Rule Function(boolean inParens) { |
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632 Var<Integer> start = new Var<Integer>(); |
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633 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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634 return Sequence( |
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635 start.set(currentIndex()), |
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636 '(', Spaces(true), |
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637 action( frame = new Frame(frame) ), |
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638 Optional( |
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639 FirstOf( |
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640 Sequence( |
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641 NameList(true,names), addSymbols(names.get()), |
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642 Optional( ',', Spaces(true), VarArgName() ) |
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643 ), |
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644 VarArgName() |
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645 ) |
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646 ), |
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647 ')', Spaces(inParens), Block(), Keyword("end",inParens), |
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648 push( newChunk(start.get()) ), |
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649 action( frame = frame.parent ) |
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650 ); |
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651 } |
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652 |
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653 Rule VarArgName() { |
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654 return Sequence( |
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655 "...", Spaces(true), |
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656 action( frame.isVarArg = true ) |
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657 ); |
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658 } |
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659 |
65
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660 @Cached |
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661 Rule VarArgs(boolean inParens) { |
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662 Var<Integer> start = new Var<Integer>(); |
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663 return Sequence( |
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664 start.set(currentIndex()), |
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665 "...", Spaces(inParens), |
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666 frame.isVarArg, |
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667 push( new VarArgs(se(start.get())) ) |
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668 ); |
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669 } |
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670 |
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671 @Cached |
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672 Rule TableExpr(boolean inParens) { |
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673 Var<Integer> start = new Var<Integer>(); |
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674 Var<List<TableExpr.Field>> fields = new Var<List<TableExpr.Field>>(new ArrayList<TableExpr.Field>()); |
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675 Var<ExpList.Builder> builder = new Var<ExpList.Builder>(new ExpList.Builder()); |
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676 return Sequence( |
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677 start.set(currentIndex()), |
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678 '{', Spaces(true), |
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679 Optional( |
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680 Field(fields,builder), |
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681 ZeroOrMore( |
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682 FieldSep(), |
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683 Field(fields,builder) |
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684 ), |
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685 Optional( FieldSep() ) |
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686 ), |
65
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687 '}', |
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688 Spaces(inParens), |
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689 push( new TableExpr( se(start.get()), fields.get().toArray(new TableExpr.Field[0]), builder.get().build() ) ) |
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690 ); |
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691 } |
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692 |
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693 Rule FieldSep() { |
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694 return Sequence( AnyOf(",;"), Spaces(true) ); |
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695 } |
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696 |
25
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697 Rule Field(Var<List<TableExpr.Field>> fields,Var<ExpList.Builder> builder) { |
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698 return FirstOf( |
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699 Sequence( |
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700 FirstOf( SubExpr(true), NameExpr(true) ), |
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701 '=', Spaces(true), Expr(true), |
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702 fields.get().add( new TableExpr.Field( expr(pop(1)), expr(pop()) ) ) |
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703 ), |
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704 Sequence( |
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705 Expr(true), |
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706 addToExpList(builder.get()) |
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707 ) |
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708 ); |
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709 } |
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710 |
11
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711 static Expr expr(Object obj) { |
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712 if( obj instanceof Expressions ) |
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713 return new ExpressionsExpr((Expressions)obj); |
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714 return (Expr)obj; |
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715 } |
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716 |
65
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717 @Cached |
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718 Rule VarExp(boolean inParens) { |
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719 Var<Integer> start = new Var<Integer>(); |
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720 return Sequence( |
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721 start.set(currentIndex()), |
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722 Var(inParens), |
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723 makeVarExp(start.get()) |
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724 ); |
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725 } |
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726 |
65
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727 @Cached |
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728 Rule Var(boolean inParens) { |
40
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729 Var<Integer> start = new Var<Integer>(); |
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730 return Sequence( |
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731 start.set(currentIndex()), |
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732 FirstOf( |
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733 Sequence( |
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734 '(', Spaces(true), Expr(true), ')', Spaces(inParens), |
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735 push(expr(pop())), |
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736 push(null) // marker |
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737 ), |
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738 Sequence( |
17
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739 push(null), // marker |
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740 Name(inParens) |
11
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741 ) |
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742 ), |
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743 ZeroOrMore( |
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744 makeVarExp(start.get()), |
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745 FirstOf( |
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746 SubExpr(inParens), |
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747 Sequence( '.', Spaces(inParens), NameExpr(inParens) ), |
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748 Sequence( |
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749 Args(inParens,start), |
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750 push(null) // marker |
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751 ) |
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752 ) |
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753 ) |
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754 ); |
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755 } |
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756 |
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757 Expr env() { |
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758 int index = stackIndex(_ENV); |
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759 if( index != -1 ) |
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760 return new GetLocalVar(null,index); |
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761 index = upValueIndex(_ENV); |
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762 if( index != -1 ) |
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763 return new GetUpVar(null,index); |
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764 throw new RuntimeException("_ENV not found"); |
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765 } |
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766 |
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767 boolean makeVarExp(int start) { |
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768 Object obj2 = pop(); |
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769 if( obj2==null ) |
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770 return true; |
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771 Object obj1 = pop(); |
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772 if( obj1 != null ) |
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773 return push( new IndexExpr( se(start), expr(obj1), expr(obj2) ) ); |
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774 String name = (String)obj2; |
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775 int index = stackIndex(name); |
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776 if( index != -1 ) |
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777 return push( new GetLocalVar(se(start),index) ); |
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778 index = upValueIndex(name); |
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779 if( index != -1 ) |
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780 return push( new GetUpVar(se(start),index) ); |
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781 return push( new IndexExpr( se(start), env(), new ConstExpr(name) ) ); |
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782 } |
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783 |
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784 // function should be on top of the stack |
65
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785 Rule Args(boolean inParens,Var<Integer> start) { |
11
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786 return Sequence( |
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787 FirstOf( |
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788 Sequence( |
65
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789 '(', Spaces(true), Expressions(true), ')', Spaces(inParens) |
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790 ), |
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791 Sequence( |
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792 TableExpr(inParens), |
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793 push( new ExpList.SingleExpList(expr(pop())) ) |
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794 ), |
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795 Sequence( |
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796 StringLiteral(inParens), |
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797 push( new ExpList.SingleExpList(new ConstExpr(pop())) ) |
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798 ) |
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799 ), |
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800 push( new FnCall( se(start.get()), expr(pop(1)), (Expressions)pop() ) ) |
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801 ); |
9
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802 } |
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803 |
65
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804 @Cached |
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805 Rule Expressions(boolean inParens) { |
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806 return FirstOf( |
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807 ExpList(inParens), |
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808 push( ExpList.emptyExpList ) |
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809 ); |
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810 } |
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811 |
65
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812 @Cached |
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813 Rule ExpList(boolean inParens) { |
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814 Var<ExpList.Builder> builder = new Var<ExpList.Builder>(new ExpList.Builder()); |
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815 return Sequence( |
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|
816 Expr(inParens), |
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|
817 addToExpList(builder.get()), |
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818 ZeroOrMore( |
65
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819 ',', Spaces(inParens), Expr(inParens), |
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820 addToExpList(builder.get()) |
11
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821 ), |
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822 push( builder.get().build() ) |
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823 ); |
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824 } |
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|
825 |
17
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826 boolean addToExpList(ExpList.Builder bld) { |
11
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827 Object obj = pop(); |
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828 if( obj instanceof Expressions ) { |
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829 bld.add( (Expressions)obj ); |
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830 } else { |
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831 bld.add( (Expr)obj ); |
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832 } |
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833 return true; |
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834 } |
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835 |
54
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836 boolean addToExpList(ExpList.Builder bld, Expr expr) { |
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837 bld.add(expr); |
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838 return true; |
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839 } |
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840 |
65
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841 @Cached |
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842 Rule SubExpr(boolean inParens) { |
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843 return Sequence( '[', Spaces(true), Expr(true), ']', Spaces(inParens) ); |
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844 } |
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845 |
65
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846 @Cached |
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|
847 Rule NameExpr(boolean inParens) { |
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848 return Sequence( |
65
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849 Name(inParens), |
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850 push( new ConstExpr((String)pop()) ) |
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851 ); |
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852 } |
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853 |
65
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854 @Cached |
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855 Rule Name(boolean inParens) { |
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856 return Sequence( |
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857 Sequence( |
17
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|
858 NameFirstChar(), |
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859 ZeroOrMore( NameChar() ) |
9
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860 ), |
17
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861 !keywords.contains(match()), |
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862 push(match()), |
65
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863 Spaces(inParens) |
9
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864 ); |
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865 } |
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866 |
17
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867 Rule NameChar() { |
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868 return FirstOf( NameFirstChar(), Digit() ); |
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869 } |
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870 |
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871 Rule NameFirstChar() { |
9
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872 return FirstOf( |
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873 CharRange('a', 'z'), |
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874 CharRange('A', 'Z'), |
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875 '_' |
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876 ); |
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877 } |
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878 |
65
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|
879 Rule Keyword(String keyword,boolean inParens) { |
17
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880 return Sequence( |
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881 keyword, |
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882 TestNot( NameChar() ), |
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883 Spaces(inParens) |
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884 ); |
12
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885 } |
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886 |
17
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887 static final Set<String> keywords = new HashSet<String>(Arrays.asList( |
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888 "and", |
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889 "break", |
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890 "catch", |
12
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891 "do", |
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892 "else", |
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893 "elseif", |
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894 "end", |
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895 "false", |
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896 "for", |
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897 "function", |
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898 "goto", |
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899 "if", |
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900 "in", |
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901 "local", |
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902 "nil", |
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903 "not", |
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904 "or", |
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905 "repeat", |
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906 "return", |
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907 "step", |
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908 "then", |
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909 "to", |
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|
910 "true", |
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911 "try", |
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912 "until", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
913 "while" |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
914 )); |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
915 |
65
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
916 @Cached |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
917 Rule Literal(boolean inParens) { |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
918 return Sequence( |
65
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
919 FirstOf( |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
920 NilLiteral(inParens), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
921 BooleanLiteral(inParens), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
922 NumberLiteral(inParens), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
923 StringLiteral(inParens) |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
924 ), |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
925 push(new ConstExpr(pop())) |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
926 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
927 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
928 |
65
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
929 @Cached |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
930 Rule NilLiteral(boolean inParens) { |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
931 return Sequence( Keyword("nil",inParens), push(null) ); |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
932 } |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
933 |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
934 @Cached |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
935 Rule BooleanLiteral(boolean inParens) { |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
936 return FirstOf( |
65
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
937 Sequence( Keyword("true",inParens), push(true) ), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
938 Sequence( Keyword("false",inParens), push(false) ) |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
939 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
940 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
941 |
65
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
942 @Cached |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
943 Rule NumberLiteral(boolean inParens) { |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
944 return Sequence( |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
945 FirstOf( |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
946 Sequence( |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
947 IgnoreCase("0x"), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
948 HexNumber() |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
949 ), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
950 Sequence( |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
951 DecNumber(), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
952 push(Double.valueOf(match())) |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
953 ) |
6
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
954 ), |
65
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
955 TestNot( NameChar() ), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
changeset
|
956 Spaces(inParens) |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
957 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
958 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
959 |
6
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
960 Rule DecNumber() { |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
961 return FirstOf( |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
962 Sequence( |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
963 Int(), |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
964 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
|
965 Exponent() |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
966 ), |
11
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
9
diff
changeset
|
967 Sequence( '.', Int(), Exponent() ) |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
968 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
969 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
970 |
11
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
9
diff
changeset
|
971 Rule Exponent() { |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
972 return Optional( |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
973 IgnoreCase('e'), |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
974 Optional(AnyOf("+-")), |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
975 Int() |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
976 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
977 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
978 |
6
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
5
diff
changeset
|
979 Rule Int() { |
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
980 return OneOrMore(Digit()); |
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more parsing
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parents:
5
diff
changeset
|
981 } |
a315783c9524
more parsing
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parents:
5
diff
changeset
|
982 |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
983 Rule Digit() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
984 return CharRange('0', '9'); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
985 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
986 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
987 Rule HexNumber() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
988 return FirstOf( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
989 Sequence( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
990 HexInt(), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
991 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
|
992 Optional( '.', Optional(HexDec()) ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
993 HexExponent() |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
994 ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
995 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
|
996 ); |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
997 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
998 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
999 Rule HexDec() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
1000 return Sequence( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff
changeset
|
1001 HexInt(), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
1002 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
|
1003 ); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
1004 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
1005 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
1006 Rule HexExponent() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
1007 return Optional( |
2a30281ef47c
finish number literals;
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changeset
|
1008 IgnoreCase('p'), |
2a30281ef47c
finish number literals;
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parents:
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|
1009 Sequence( |
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parents:
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|
1010 Optional(AnyOf("+-")), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
1011 HexInt() |
2a30281ef47c
finish number literals;
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parents:
15
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|
1012 ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1013 push( (Double)pop() * Math.pow(2,(double)Long.parseLong(match())) ) |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
1014 ); |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
1015 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1016 |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
1017 Rule HexInt() { |
2a30281ef47c
finish number literals;
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parents:
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|
1018 return OneOrMore(Digit()); |
2a30281ef47c
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parents:
15
diff
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|
1019 } |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
1020 |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
1021 |
6
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|
1022 Rule HexDigit() { |
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|
1023 return FirstOf( |
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|
1024 Digit(), |
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|
1025 AnyOf("abcdefABCDEF") |
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1026 ); |
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1027 } |
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|
1028 |
65
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
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|
1029 @Cached |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
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|
1030 Rule StringLiteral(boolean inParens) { |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
1031 return Sequence( |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
1032 FirstOf( |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
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|
1033 QuotedString('"'), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
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|
1034 QuotedString('\''), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
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|
1035 LongString() |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
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|
1036 ), |
1ff53a88579a
multi-line statements
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
60
diff
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|
1037 Spaces(inParens) |
16
2a30281ef47c
finish number literals;
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parents:
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|
1038 ); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1039 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1040 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
1041 Rule LongString() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1042 return Sequence( |
17
09d41f7490a8
add local variables
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parents:
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diff
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|
1043 '[', |
16
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
1044 ZeroOrMore('='), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1045 nEquals(matchLength()), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1046 '[', |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
1047 ZeroOrMore( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1048 TestNot(LongBracketsEnd()), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1049 ANY |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1050 ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
1051 push( match() ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
1052 LongBracketsEnd() |
6
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parents:
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|
1053 ); |
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parents:
5
diff
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|
1054 } |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
1055 |
6
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more parsing
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parents:
5
diff
changeset
|
1056 Rule QuotedString(char quote) { |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
1057 StringBuilderVar buf = new StringBuilderVar(); |
6
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more parsing
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5
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|
1058 return Sequence( |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
1059 quote, |
6
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more parsing
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parents:
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diff
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|
1060 ZeroOrMore( |
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parents:
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|
1061 FirstOf( |
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parents:
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|
1062 Sequence( |
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more parsing
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parents:
5
diff
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|
1063 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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|
1064 buf.append(matchedChar()) |
6
a315783c9524
more parsing
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parents:
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diff
changeset
|
1065 ), |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
1066 EscSeq(buf) |
6
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more parsing
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parents:
5
diff
changeset
|
1067 ) |
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parents:
5
diff
changeset
|
1068 ), |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
1069 quote, |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
1070 push( buf.getString() ) |
6
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parents:
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diff
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|
1071 ); |
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parents:
5
diff
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|
1072 } |
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parents:
5
diff
changeset
|
1073 |
17
09d41f7490a8
add local variables
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parents:
16
diff
changeset
|
1074 Rule EscSeq(StringBuilderVar buf) { |
6
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parents:
5
diff
changeset
|
1075 return Sequence( |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
1076 '\\', |
6
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more parsing
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parents:
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diff
changeset
|
1077 FirstOf( |
17
09d41f7490a8
add local variables
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parents:
16
diff
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|
1078 Sequence( 'a', buf.append('\u0007') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
1079 Sequence( 'b', buf.append('\b') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
1080 Sequence( 'f', buf.append('\f') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
1081 Sequence( 'n', buf.append('\n') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
1082 Sequence( 'r', buf.append('\r') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
1083 Sequence( 't', buf.append('\t') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
1084 Sequence( 'v', buf.append('\u000b') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
1085 Sequence( '\\', buf.append('\\') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
1086 Sequence( '"', buf.append('"') ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
1087 Sequence( '\'', buf.append('\'') ), |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
1088 Sequence( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
1089 'x', |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
1090 Sequence( HexDigit(), HexDigit() ), |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
1091 buf.append( (char)Integer.parseInt(match(),16) ) |
7
bca8fc5d928b
work on expressions
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parents:
6
diff
changeset
|
1092 ), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
1093 Sequence( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
1094 Sequence( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
1095 Digit(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
1096 Optional( |
bca8fc5d928b
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parents:
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diff
changeset
|
1097 Digit(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
1098 Optional( |
bca8fc5d928b
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parents:
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diff
changeset
|
1099 Digit() |
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
1100 ) |
bca8fc5d928b
work on expressions
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parents:
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diff
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|
1101 ) |
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
1102 ), |
17
09d41f7490a8
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parents:
16
diff
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1103 buf.append( (char)Integer.parseInt(match()) ) |
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1104 ) |
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1105 ) |
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1106 ); |
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1107 } |
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1108 |
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1109 @Cached |
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1110 Rule Spaces(boolean inParens) { |
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1111 return ZeroOrMore( |
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1112 FirstOf( |
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1113 AnyOf(" \t"), |
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1114 Comment(), |
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1115 Sequence( '\\', EndOfLine() ), |
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1116 Sequence( AnyOf("\r\n"), inParens ) |
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1117 ) |
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1118 ); |
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1119 } |
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1120 |
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1121 Rule Comment() { |
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1122 return Sequence( |
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1123 "--[", |
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1124 ZeroOrMore('='), |
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1125 nEquals(matchLength()), |
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1126 '[', |
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1127 ZeroOrMore( |
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1128 TestNot(LongBracketsEnd()), |
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1129 ANY |
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1130 ), |
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1131 LongBracketsEnd() |
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1132 ); |
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1133 } |
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1134 |
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1135 Rule LongBracketsEnd() { |
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1136 return Sequence( ']', ZeroOrMore('='), nEquals==matchLength(), ']' ); |
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1137 } |
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1138 |
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1139 static boolean action(Object obj) { |
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1140 return true; |
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1141 } |
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1142 |
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1143 // for debugging |
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1144 boolean print(Object o) { |
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1145 System.out.println(o); |
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1146 return true; |
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1147 } |
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1148 |
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1149 } |