Mercurial Hosting > luan
annotate src/luan/interp/LuaParser.java @ 24:7ee247560db5
add VarArgs
git-svn-id: https://luan-java.googlecode.com/svn/trunk@25 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Thu, 06 Dec 2012 04:40:54 +0000 |
parents | c93d8c781853 |
children | 0e406bd9ac7b |
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5
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1 package luan.interp; |
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2 |
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3 import java.util.Set; |
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4 import java.util.HashSet; |
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5 import java.util.Arrays; |
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6 import java.util.List; |
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7 import java.util.ArrayList; |
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8 import java.util.Scanner; |
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9 import org.parboiled.BaseParser; |
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10 import org.parboiled.Parboiled; |
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11 import org.parboiled.Rule; |
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12 import org.parboiled.parserunners.ReportingParseRunner; |
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13 import org.parboiled.support.ParsingResult; |
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14 import org.parboiled.support.Var; |
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15 import org.parboiled.support.StringVar; |
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16 import org.parboiled.support.StringBuilderVar; |
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17 import org.parboiled.support.ValueStack; |
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18 import org.parboiled.errors.ErrorUtils; |
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19 import luan.Lua; |
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20 import luan.LuaNumber; |
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21 import luan.LuaState; |
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22 |
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23 |
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24 public class LuaParser extends BaseParser<Object> { |
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25 |
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26 static final class Frame { |
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27 final Frame parent; |
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28 final List<String> symbols = new ArrayList<String>(); |
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29 int stackSize = 0; |
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30 int loops = 0; |
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31 boolean isVarArg = false; |
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32 |
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33 Frame(Frame parent) { |
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34 this.parent = parent; |
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35 } |
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36 } |
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37 |
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38 int nEquals; |
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39 int parens = 0; |
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40 Frame frame = new Frame(null); |
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41 |
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42 boolean nEquals(int n) { |
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43 nEquals = n; |
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44 return true; |
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45 } |
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46 |
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47 boolean incParens() { |
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48 parens++; |
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49 return true; |
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50 } |
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51 |
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52 boolean decParens() { |
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53 parens--; |
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54 return true; |
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55 } |
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56 |
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57 List<String> symbols() { |
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58 return frame.symbols; |
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59 } |
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60 |
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61 int symbolsSize() { |
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62 return frame.symbols.size(); |
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63 } |
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64 |
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65 boolean addSymbol(String name) { |
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66 frame.symbols.add(name); |
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67 if( frame.stackSize < symbolsSize() ) |
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68 frame.stackSize = symbolsSize(); |
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69 return true; |
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70 } |
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71 |
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72 int index(String name) { |
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73 List<String> symbols = frame.symbols; |
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74 int i = symbols.size(); |
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75 while( --i >= 0 ) { |
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76 if( symbols.get(i).equals(name) ) |
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77 return i; |
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78 } |
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79 return -1; |
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80 } |
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81 |
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82 boolean popSymbols(int n) { |
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83 List<String> symbols = frame.symbols; |
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84 while( n-- > 0 ) { |
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85 symbols.remove(symbols.size()-1); |
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86 } |
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87 return true; |
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88 } |
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89 |
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90 boolean incLoops() { |
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91 frame.loops++; |
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92 return true; |
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93 } |
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94 |
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95 boolean decLoops() { |
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96 frame.loops--; |
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97 return true; |
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98 } |
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99 |
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100 |
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101 public Rule Target() { |
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102 return Sequence( |
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103 Spaces(), |
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104 FirstOf( |
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105 Sequence( ExpList(), EOI ), |
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106 Sequence( |
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107 Block(), |
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108 EOI, |
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109 push( new Chunk( (Stmt)pop(), frame.stackSize, 0, false ) ) |
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110 ) |
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111 ) |
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112 ); |
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113 } |
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114 |
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115 Rule Block() { |
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116 Var<List<Stmt>> stmts = new Var<List<Stmt>>(new ArrayList<Stmt>()); |
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117 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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118 return Sequence( |
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119 Optional( Stmt(stmts) ), |
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120 ZeroOrMore( |
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121 StmtSep(), |
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122 Optional( Stmt(stmts) ) |
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123 ), |
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124 push( newBlock(stmts.get(),stackStart.get()) ) |
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125 ); |
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126 } |
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127 |
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128 Stmt newBlock(List<Stmt> stmts,int stackStart) { |
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129 int stackEnd = symbolsSize(); |
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130 popSymbols( stackEnd - stackStart ); |
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131 if( stmts.isEmpty() ) |
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132 return Stmt.EMPTY; |
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133 if( stmts.size()==1 && stackStart==stackEnd ) |
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134 return stmts.get(0); |
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135 return new Block( stmts.toArray(new Stmt[0]), stackStart, stackEnd ); |
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136 } |
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137 |
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138 Rule StmtSep() { |
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139 return Sequence( |
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140 FirstOf( |
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141 ';', |
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142 Sequence( |
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143 Optional( "--", ZeroOrMore(NoneOf("\r\n")) ), |
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144 EndOfLine() |
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145 ) |
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146 ), |
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147 Spaces() |
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148 ); |
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149 } |
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150 |
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151 Rule EndOfLine() { |
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152 return FirstOf("\r\n", '\r', '\n'); |
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153 } |
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154 |
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155 Rule Stmt(Var<List<Stmt>> stmts) { |
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156 return FirstOf( |
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157 LocalStmt(stmts), |
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158 Sequence( |
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159 FirstOf( |
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160 ReturnStmt(), |
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161 FunctionStmt(), |
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162 LocalFunctionStmt(), |
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163 BreakStmt(), |
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164 GenericForStmt(), |
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165 NumericForStmt(), |
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166 DoStmt(), |
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167 WhileStmt(), |
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168 RepeatStmt(), |
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169 IfStmt(), |
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170 SetStmt(), |
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171 ExpressionsStmt() |
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172 ), |
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173 stmts.get().add( (Stmt)pop() ) |
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174 ) |
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175 ); |
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176 } |
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177 |
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178 Rule ReturnStmt() { |
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179 return Sequence( |
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180 Keyword("return"), Expressions(), |
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181 push( new ReturnStmt( (Expressions)pop() ) ) |
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182 ); |
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183 } |
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184 |
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185 Rule FunctionStmt() { |
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186 return Sequence( |
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187 Keyword("function"), FnName(), Function(), |
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188 push( new SetStmt( (Settable)pop(1), expr(pop()) ) ) |
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189 ); |
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190 } |
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191 |
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192 Rule FnName() { |
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193 return Sequence( |
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194 push(null), // marker |
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195 Name(), |
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196 ZeroOrMore( |
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197 '.', Spaces(), |
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198 makeVarExp(), |
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199 NameExpr() |
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200 ), |
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201 makeSettableVar() |
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202 ); |
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203 } |
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204 |
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205 Rule LocalFunctionStmt() { |
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206 return Sequence( |
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207 Keyword("local"), Keyword("function"), LocalName(), Function(), |
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208 push( new SetStmt( new SetLocalVar(symbolsSize()-1), expr(pop()) ) ) |
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209 ); |
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210 } |
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211 |
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212 Rule BreakStmt() { |
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213 return Sequence( |
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214 Keyword("break"), |
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215 frame.loops > 0, |
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216 push( new BreakStmt() ) |
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217 ); |
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218 } |
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219 |
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220 Rule GenericForStmt() { |
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221 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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222 return Sequence( |
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223 Keyword("for"), NameList(), Keyword("in"), Expr(), Keyword("do"), LoopBlock(), Keyword("end"), |
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224 push( new GenericForStmt( stackStart.get(), symbolsSize() - stackStart.get(), expr(pop(1)), (Stmt)pop() ) ), |
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225 popSymbols( symbolsSize() - stackStart.get() ) |
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226 ); |
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227 } |
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228 |
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229 Rule NumericForStmt() { |
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230 return Sequence( |
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231 Keyword("for"), Name(), '=', Spaces(), Expr(), ',', Spaces(), Expr(), |
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232 push( new ConstExpr(new LuaNumber(1)) ), // default step |
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233 Optional( |
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234 ',', Spaces(), |
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235 drop(), |
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236 Expr() |
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237 ), |
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238 addSymbol( (String)pop(3) ), // add "for" var to symbols |
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239 Keyword("do"), LoopBlock(), Keyword("end"), |
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240 push( new NumericForStmt( symbolsSize()-1, expr(pop(3)), expr(pop(2)), expr(pop(1)), (Stmt)pop() ) ), |
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241 popSymbols(1) |
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242 ); |
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243 } |
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244 |
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245 Rule DoStmt() { |
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246 return Sequence( |
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247 Keyword("do"), Block(), Keyword("end") |
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248 ); |
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249 } |
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250 |
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251 Rule LocalStmt(Var<List<Stmt>> stmts) { |
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252 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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253 return Sequence( |
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254 Keyword("local"), NameList(), |
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255 Optional( |
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256 '=', Spaces(), ExpList(), |
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257 stmts.get().add( newSetLocalStmt(stackStart.get()) ) |
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258 ) |
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259 ); |
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260 } |
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261 |
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262 Rule NameList() { |
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263 return Sequence( |
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264 LocalName(), |
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265 ZeroOrMore( |
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266 ',', Spaces(), LocalName() |
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267 ) |
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268 ); |
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269 } |
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270 |
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271 Rule LocalName() { |
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272 return Sequence( |
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273 Name(), |
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274 addSymbol( (String)pop() ) |
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275 ); |
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276 } |
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277 |
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278 SetStmt newSetLocalStmt(int stackStart) { |
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279 Expressions values = (Expressions)pop(); |
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280 SetLocalVar[] vars = new SetLocalVar[symbolsSize()-stackStart]; |
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281 for( int i=0; i<vars.length; i++ ) { |
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282 vars[i] = new SetLocalVar(stackStart+i); |
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283 } |
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284 return new SetStmt( vars, values ); |
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285 } |
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286 |
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287 Rule WhileStmt() { |
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288 return Sequence( |
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289 Keyword("while"), Expr(), Keyword("do"), LoopBlock(), Keyword("end"), |
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290 push( new WhileStmt( expr(pop(1)), (Stmt)pop() ) ) |
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291 ); |
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292 } |
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293 |
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294 Rule RepeatStmt() { |
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295 return Sequence( |
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296 Keyword("repeat"), LoopBlock(), Keyword("until"), Expr(), |
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297 push( new RepeatStmt( (Stmt)pop(1), expr(pop()) ) ) |
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298 ); |
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299 } |
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300 |
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301 Rule LoopBlock() { |
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302 return Sequence( incLoops(), Block(), decLoops() ); |
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303 } |
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304 |
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305 Rule IfStmt() { |
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306 Var<Integer> n = new Var<Integer>(1); |
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307 return Sequence( |
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308 Keyword("if"), Expr(), Keyword("then"), Block(), |
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309 push(Stmt.EMPTY), |
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310 ZeroOrMore( |
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311 Keyword("elseif"), drop(), Expr(), Keyword("then"), Block(), |
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312 push(Stmt.EMPTY), |
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313 n.set(n.get()+1) |
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314 ), |
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315 Optional( |
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316 Keyword("else"), drop(), Block() |
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317 ), |
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318 Keyword("end"), |
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319 buildIfStmt(n.get()) |
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320 ); |
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321 } |
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322 |
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323 boolean buildIfStmt(int n) { |
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324 while( n-- > 0 ) { |
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325 Stmt elseStmt = (Stmt)pop(); |
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326 Stmt thenStmt = (Stmt)pop(); |
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327 Expr cnd = expr(pop()); |
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328 push( new IfStmt(cnd,thenStmt,elseStmt) ); |
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329 } |
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330 return true; |
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331 } |
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332 |
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333 Rule SetStmt() { |
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334 return Sequence( |
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335 VarList(), |
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336 '=', Spaces(), |
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337 ExpList(), |
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338 push( newSetStmt() ) |
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339 ); |
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340 } |
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341 |
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342 Rule ExpressionsStmt() { |
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343 return Sequence( |
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344 ExpList(), |
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345 push( new ExpressionsStmt((Expressions)pop()) ) |
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346 ); |
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347 } |
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348 |
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349 SetStmt newSetStmt() { |
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350 Expressions values = (Expressions)pop(); |
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351 @SuppressWarnings("unchecked") |
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352 List<Settable> vars = (List<Settable>)pop(); |
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353 return new SetStmt( vars.toArray(new Settable[0]), values ); |
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354 } |
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355 |
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356 Rule VarList() { |
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357 Var<List<Settable>> vars = new Var<List<Settable>>(new ArrayList<Settable>()); |
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358 return Sequence( |
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359 SettableVar(), |
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360 vars.get().add( (Settable)pop() ), |
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361 ZeroOrMore( |
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362 ',', Spaces(), SettableVar(), |
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363 vars.get().add( (Settable)pop() ) |
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364 ), |
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365 push(vars.get()) |
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366 ); |
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367 } |
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368 |
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369 Rule SettableVar() { |
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370 return Sequence( Var(), makeSettableVar() ); |
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371 } |
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372 |
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373 boolean makeSettableVar() { |
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374 Object obj2 = pop(); |
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375 if( obj2==null ) |
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376 return false; |
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377 Object obj1 = pop(); |
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378 if( obj1==null ) { |
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379 String name = (String)obj2; |
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380 int index = index(name); |
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381 if( index == -1 ) { |
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382 push( new SetTableEntry( EnvExpr.INSTANCE, new ConstExpr(name) ) ); |
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383 } else { |
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384 push( new SetLocalVar(index) ); |
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385 } |
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386 } else { |
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387 Expr key = expr(obj2); |
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388 Expr table = expr(obj1); |
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389 push( new SetTableEntry(table,key) ); |
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390 } |
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391 return true; |
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392 } |
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393 |
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394 Rule Expr() { |
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395 return FirstOf( |
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396 VarArgs(), |
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397 OrExpr() |
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398 ); |
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399 } |
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400 |
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401 Rule OrExpr() { |
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402 return Sequence( |
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403 AndExpr(), |
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404 ZeroOrMore( "or", Spaces(), AndExpr(), push( new OrExpr(expr(pop(1)),expr(pop())) ) ) |
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405 ); |
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406 } |
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407 |
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408 Rule AndExpr() { |
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409 return Sequence( |
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410 RelExpr(), |
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411 ZeroOrMore( "and", Spaces(), RelExpr(), push( new AndExpr(expr(pop(1)),expr(pop())) ) ) |
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412 ); |
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413 } |
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414 |
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415 Rule RelExpr() { |
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416 return Sequence( |
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417 ConcatExpr(), |
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418 ZeroOrMore( |
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419 FirstOf( |
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420 Sequence( "==", Spaces(), ConcatExpr(), push( new EqExpr(expr(pop(1)),expr(pop())) ) ), |
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421 Sequence( "~=", Spaces(), ConcatExpr(), push( new NotExpr(new EqExpr(expr(pop(1)),expr(pop()))) ) ), |
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422 Sequence( "<=", Spaces(), ConcatExpr(), push( new LeExpr(expr(pop(1)),expr(pop())) ) ), |
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423 Sequence( ">=", Spaces(), ConcatExpr(), push( new LeExpr(expr(pop()),expr(pop())) ) ), |
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424 Sequence( "<", Spaces(), ConcatExpr(), push( new LtExpr(expr(pop(1)),expr(pop())) ) ), |
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425 Sequence( ">", Spaces(), ConcatExpr(), push( new LtExpr(expr(pop()),expr(pop())) ) ) |
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426 ) |
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427 ) |
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428 ); |
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429 } |
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430 |
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431 Rule ConcatExpr() { |
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432 return Sequence( |
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433 SumExpr(), |
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434 Optional( "..", Spaces(), ConcatExpr(), push( new ConcatExpr(expr(pop(1)),expr(pop())) ) ) |
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435 ); |
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436 } |
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437 |
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438 Rule SumExpr() { |
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439 return Sequence( |
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440 TermExpr(), |
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441 ZeroOrMore( |
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442 FirstOf( |
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443 Sequence( '+', Spaces(), TermExpr(), push( new AddExpr(expr(pop(1)),expr(pop())) ) ), |
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444 Sequence( '-', TestNot('-'), Spaces(), TermExpr(), push( new SubExpr(expr(pop(1)),expr(pop())) ) ) |
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445 ) |
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446 ) |
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447 ); |
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448 } |
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449 |
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450 Rule TermExpr() { |
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451 return Sequence( |
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452 UnaryExpr(), |
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453 ZeroOrMore( |
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454 FirstOf( |
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455 Sequence( '*', Spaces(), UnaryExpr(), push( new MulExpr(expr(pop(1)),expr(pop())) ) ), |
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456 Sequence( '/', Spaces(), UnaryExpr(), push( new DivExpr(expr(pop(1)),expr(pop())) ) ), |
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457 Sequence( '%', Spaces(), UnaryExpr(), push( new ModExpr(expr(pop(1)),expr(pop())) ) ) |
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458 ) |
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459 ) |
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460 ); |
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461 } |
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462 |
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463 Rule UnaryExpr() { |
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464 return FirstOf( |
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465 Sequence( '#', Spaces(), PowExpr(), push( new LenExpr(expr(pop())) ) ), |
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466 Sequence( '-', TestNot('-'), Spaces(), PowExpr(), push( new UnmExpr(expr(pop())) ) ), |
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467 Sequence( "not", Spaces(), PowExpr(), push( new NotExpr(expr(pop())) ) ), |
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468 PowExpr() |
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469 ); |
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470 } |
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471 |
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472 Rule PowExpr() { |
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473 return Sequence( |
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474 SingleExpr(), |
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475 Optional( '^', Spaces(), PowExpr(), push( new PowExpr(expr(pop(1)),expr(pop())) ) ) |
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476 ); |
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477 } |
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478 |
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479 Rule SingleExpr() { |
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480 return FirstOf( |
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481 FunctionExpr(), |
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482 TableExpr(), |
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483 VarExp(), |
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484 LiteralExpr() |
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485 ); |
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486 } |
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487 |
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488 Rule FunctionExpr() { |
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489 return Sequence( "function", Spaces(), Function() ); |
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490 } |
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491 |
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492 Rule Function() { |
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493 return Sequence( |
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494 action( frame = new Frame(frame) ), |
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495 '(', incParens(), Spaces(), |
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496 Optional( |
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497 FirstOf( |
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498 Sequence( NameList(), Optional( ',', Spaces(), VarArgName() ) ), |
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499 VarArgName() |
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500 ) |
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501 ), |
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502 ')', decParens(), Spaces(), Block(), Keyword("end"), |
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503 push( new Chunk( (Stmt)pop(), frame.stackSize, symbolsSize(), frame.isVarArg ) ), |
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504 action( frame = frame.parent ) |
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505 ); |
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506 } |
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507 |
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508 Rule VarArgName() { |
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509 return Sequence( |
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510 "...", Spaces(), |
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511 action( frame.isVarArg = true ) |
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512 ); |
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513 } |
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514 |
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515 Rule VarArgs() { |
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516 return Sequence( |
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517 "...", Spaces(), |
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518 frame.isVarArg, |
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519 push( VarArgs.INSTANCE ) |
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520 ); |
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521 } |
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522 |
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523 Rule TableExpr() { |
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524 return Sequence( |
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525 '{', incParens(), Spaces(), |
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526 push( new ArrayList<TableExpr.Field>() ), |
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527 push( 1.0 ), // counter |
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528 Optional( |
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529 Field(), |
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530 ZeroOrMore( |
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531 FieldSep(), |
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532 Field() |
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533 ), |
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534 Optional( FieldSep() ) |
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535 ), |
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536 '}', decParens(), |
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537 push( newTableExpr() ), |
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538 Spaces() |
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539 ); |
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540 } |
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541 |
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542 TableExpr newTableExpr() { |
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543 pop(); // counter |
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544 @SuppressWarnings("unchecked") |
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545 List<TableExpr.Field> list = (List<TableExpr.Field>)pop(); |
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546 return new TableExpr(list.toArray(new TableExpr.Field[0])); |
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547 } |
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548 |
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549 Rule FieldSep() { |
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550 return Sequence( AnyOf(",;"), Spaces() ); |
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551 } |
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552 |
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553 Rule Field() { |
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554 return FirstOf( |
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555 Sequence( |
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556 FirstOf( SubExpr(), NameExpr() ), |
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557 '=', Spaces(), Expr(), |
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558 addField() |
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559 ), |
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560 Sequence( |
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561 Expr(), |
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562 addIndexedField() |
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563 ) |
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564 ); |
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565 } |
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566 |
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567 boolean addField() { |
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568 TableExpr.Field field = new TableExpr.Field( expr(pop(1)), expr(pop()) ); |
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569 @SuppressWarnings("unchecked") |
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570 List<TableExpr.Field> list = (List<TableExpr.Field>)peek(1); |
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571 list.add(field); |
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572 return true; |
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573 } |
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574 |
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575 boolean addIndexedField() { |
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576 Expr val = expr(pop()); |
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577 double i = (Double)pop(); |
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578 TableExpr.Field field = new TableExpr.Field( new ConstExpr(new LuaNumber(i)), val ); |
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579 push( i + 1 ); |
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580 @SuppressWarnings("unchecked") |
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581 List<TableExpr.Field> list = (List<TableExpr.Field>)peek(1); |
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582 list.add(field); |
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583 return true; |
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584 } |
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585 |
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586 static Expr expr(Object obj) { |
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587 if( obj instanceof Expressions ) |
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588 return new ExpressionsExpr((Expressions)obj); |
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589 return (Expr)obj; |
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590 } |
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591 |
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592 Rule VarExp() { |
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593 return Sequence( |
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594 Var(), |
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595 makeVarExp() |
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596 ); |
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597 } |
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598 |
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599 Rule Var() { |
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600 return Sequence( |
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601 FirstOf( |
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602 Sequence( |
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603 '(', incParens(), Spaces(), Expr(), ')', decParens(), Spaces(), |
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604 push(expr(pop())), |
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605 push(null) // marker |
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606 ), |
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607 Sequence( |
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608 push(null), // marker |
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609 Name() |
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610 ) |
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611 ), |
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612 ZeroOrMore( |
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613 makeVarExp(), |
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614 FirstOf( |
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615 SubExpr(), |
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616 Sequence( '.', Spaces(), NameExpr() ), |
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617 Sequence( |
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618 Args(), |
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619 push(null) // marker |
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620 ) |
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621 ) |
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622 ) |
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623 ); |
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624 } |
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625 |
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626 boolean makeVarExp() { |
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627 Object obj2 = pop(); |
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628 if( obj2==null ) |
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629 return true; |
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630 Object obj1 = pop(); |
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631 if( obj1==null ) { |
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632 String name = (String)obj2; |
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633 int index = index(name); |
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634 if( index == -1 ) { |
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635 return push( new GetExpr( EnvExpr.INSTANCE, new ConstExpr(name) ) ); |
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636 } else { |
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637 return push( new GetLocalVar(index) ); |
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638 } |
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639 } |
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640 return push( new GetExpr( expr(obj1), expr(obj2) ) ); |
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641 } |
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642 |
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643 // function should be on top of the stack |
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644 Rule Args() { |
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645 return Sequence( |
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646 FirstOf( |
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647 Sequence( |
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648 '(', incParens(), Spaces(), Expressions(), ')', decParens(), Spaces() |
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649 ), |
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650 Sequence( |
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651 TableExpr(), |
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652 push( new ExpList.SingleExpList(expr(pop())) ) |
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653 ), |
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654 Sequence( |
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655 StringLiteral(), Spaces(), |
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656 push( new ExpList.SingleExpList(new ConstExpr(pop())) ) |
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657 ) |
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658 ), |
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659 push( new FnCall( expr(pop(1)), (Expressions)pop() ) ) |
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660 ); |
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661 } |
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662 |
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663 Rule Expressions() { |
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664 return FirstOf( |
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665 ExpList(), |
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666 push( ExpList.emptyExpList ) |
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667 ); |
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668 } |
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669 |
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670 Rule ExpList() { |
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671 Var<ExpList.Builder> builder = new Var<ExpList.Builder>(new ExpList.Builder()); |
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672 return Sequence( |
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673 Expr(), |
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674 addToExpList(builder.get()), |
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675 ZeroOrMore( |
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676 ',', Spaces(), Expr(), |
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677 addToExpList(builder.get()) |
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678 ), |
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679 push( builder.get().build() ) |
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680 ); |
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681 } |
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682 |
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683 boolean addToExpList(ExpList.Builder bld) { |
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684 Object obj = pop(); |
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685 if( obj instanceof Expressions ) { |
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686 bld.add( (Expressions)obj ); |
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687 } else { |
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688 bld.add( (Expr)obj ); |
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689 } |
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690 return true; |
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691 } |
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692 |
17
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693 |
11
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694 Rule SubExpr() { |
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695 return Sequence( '[', incParens(), Spaces(), Expr(), ']', decParens(), Spaces() ); |
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696 } |
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697 |
17
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698 Rule NameExpr() { |
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699 return Sequence( |
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700 Name(), |
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701 push( new ConstExpr((String)pop()) ) |
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702 ); |
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703 } |
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704 |
9
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705 Rule Name() { |
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706 return Sequence( |
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707 Sequence( |
17
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708 NameFirstChar(), |
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709 ZeroOrMore( NameChar() ) |
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710 ), |
17
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711 !keywords.contains(match()), |
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712 push(match()), |
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713 Spaces() |
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714 ); |
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715 } |
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716 |
17
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717 Rule NameChar() { |
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718 return FirstOf( NameFirstChar(), Digit() ); |
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719 } |
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720 |
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721 Rule NameFirstChar() { |
9
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722 return FirstOf( |
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723 CharRange('a', 'z'), |
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724 CharRange('A', 'Z'), |
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725 '_' |
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726 ); |
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727 } |
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728 |
17
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729 Rule Keyword(String keyword) { |
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730 return Sequence( |
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731 keyword, |
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732 TestNot( NameChar() ), |
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733 Spaces() |
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734 ); |
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735 } |
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736 |
17
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737 static final Set<String> keywords = new HashSet<String>(Arrays.asList( |
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738 "and", |
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739 "break", |
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740 "do", |
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741 "else", |
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742 "elseif", |
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743 "end", |
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744 "false", |
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745 "for", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
746 "function", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
747 "goto", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
748 "if", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
749 "in", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
750 "local", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
751 "nil", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
752 "not", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
753 "or", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
754 "repeat", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
755 "return", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
756 "then", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
757 "true", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
758 "until", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
759 "while" |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
760 )); |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
761 |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
762 Rule LiteralExpr() { |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
763 return Sequence( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
764 Literal(), Spaces(), |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
765 push(new ConstExpr(pop())) |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
766 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
767 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
768 |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
769 Rule Literal() { |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
770 return FirstOf( |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
771 NilLiteral(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
772 BooleanLiteral(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
773 NumberLiteral(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
774 StringLiteral() |
5
9ef0fd711101
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parents:
diff
changeset
|
775 ); |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
776 } |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
777 |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
778 Rule NilLiteral() { |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
779 return Sequence( "nil", push(null) ); |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
780 } |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
781 |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
782 Rule BooleanLiteral() { |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
783 return FirstOf( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
784 Sequence( "true", push(true) ), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
785 Sequence( "false", push(false) ) |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
786 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
787 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
788 |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
789 Rule NumberLiteral() { |
5
9ef0fd711101
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parents:
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changeset
|
790 return Sequence( |
6
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parents:
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diff
changeset
|
791 Number(), |
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parents:
5
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changeset
|
792 push(new LuaNumber((Double)pop())) |
5
9ef0fd711101
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parents:
diff
changeset
|
793 ); |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
794 } |
9ef0fd711101
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parents:
diff
changeset
|
795 |
6
a315783c9524
more parsing
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parents:
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diff
changeset
|
796 Rule Number() { |
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parents:
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diff
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|
797 return FirstOf( |
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
798 Sequence( |
a315783c9524
more parsing
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parents:
5
diff
changeset
|
799 IgnoreCase("0x"), |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
800 HexNumber() |
6
a315783c9524
more parsing
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parents:
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diff
changeset
|
801 ), |
a315783c9524
more parsing
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parents:
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diff
changeset
|
802 Sequence( |
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more parsing
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parents:
5
diff
changeset
|
803 DecNumber(), |
a315783c9524
more parsing
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parents:
5
diff
changeset
|
804 push(Double.parseDouble(match())) |
a315783c9524
more parsing
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parents:
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diff
changeset
|
805 ) |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
806 ); |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
807 } |
9ef0fd711101
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parents:
diff
changeset
|
808 |
6
a315783c9524
more parsing
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parents:
5
diff
changeset
|
809 Rule DecNumber() { |
5
9ef0fd711101
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parents:
diff
changeset
|
810 return FirstOf( |
9ef0fd711101
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parents:
diff
changeset
|
811 Sequence( |
9ef0fd711101
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parents:
diff
changeset
|
812 Int(), |
7
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
813 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
|
814 Exponent() |
5
9ef0fd711101
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parents:
diff
changeset
|
815 ), |
11
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
9
diff
changeset
|
816 Sequence( '.', Int(), Exponent() ) |
5
9ef0fd711101
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parents:
diff
changeset
|
817 ); |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
818 } |
9ef0fd711101
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parents:
diff
changeset
|
819 |
11
b7d7069fee58
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parents:
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diff
changeset
|
820 Rule Exponent() { |
5
9ef0fd711101
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parents:
diff
changeset
|
821 return Optional( |
9ef0fd711101
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parents:
diff
changeset
|
822 IgnoreCase('e'), |
9ef0fd711101
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parents:
diff
changeset
|
823 Optional(AnyOf("+-")), |
9ef0fd711101
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parents:
diff
changeset
|
824 Int() |
9ef0fd711101
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parents:
diff
changeset
|
825 ); |
9ef0fd711101
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parents:
diff
changeset
|
826 } |
9ef0fd711101
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changeset
|
827 |
6
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|
828 Rule Int() { |
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|
829 return OneOrMore(Digit()); |
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|
830 } |
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|
831 |
16
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
832 Rule Digit() { |
2a30281ef47c
finish number literals;
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parents:
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|
833 return CharRange('0', '9'); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
834 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
835 |
2a30281ef47c
finish number literals;
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parents:
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diff
changeset
|
836 Rule HexNumber() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
837 return FirstOf( |
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finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
838 Sequence( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
839 HexInt(), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
840 push( (double)Long.parseLong(match(),16) ), |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
841 Optional( '.', Optional(HexDec()) ), |
2a30281ef47c
finish number literals;
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parents:
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diff
changeset
|
842 HexExponent() |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
843 ), |
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finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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844 Sequence( push(0.0), '.', HexDec(), HexExponent() ) |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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845 ); |
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finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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846 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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847 |
2a30281ef47c
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parents:
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|
848 Rule HexDec() { |
2a30281ef47c
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849 return Sequence( |
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850 HexInt(), |
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851 push( (Double)pop() + (double)Long.parseLong(match(),16) / Math.pow(16,matchLength()) ) |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
852 ); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
853 } |
2a30281ef47c
finish number literals;
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parents:
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|
854 |
2a30281ef47c
finish number literals;
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parents:
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|
855 Rule HexExponent() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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856 return Optional( |
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diff
changeset
|
857 IgnoreCase('p'), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff
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|
858 Sequence( |
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finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
859 Optional(AnyOf("+-")), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff
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|
860 HexInt() |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
861 ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
862 push( (Double)pop() * Math.pow(2,(double)Long.parseLong(match())) ) |
2a30281ef47c
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863 ); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
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864 } |
2a30281ef47c
finish number literals;
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parents:
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865 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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866 Rule HexInt() { |
2a30281ef47c
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867 return OneOrMore(Digit()); |
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868 } |
2a30281ef47c
finish number literals;
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parents:
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|
869 |
2a30281ef47c
finish number literals;
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870 |
6
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871 Rule HexDigit() { |
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872 return FirstOf( |
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873 Digit(), |
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874 AnyOf("abcdefABCDEF") |
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875 ); |
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|
876 } |
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|
877 |
7
bca8fc5d928b
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|
878 Rule StringLiteral() { |
6
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|
879 return FirstOf( |
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|
880 QuotedString('"'), |
16
2a30281ef47c
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|
881 QuotedString('\''), |
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parents:
15
diff
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|
882 LongString() |
2a30281ef47c
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|
883 ); |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
884 } |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
885 |
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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|
886 Rule LongString() { |
2a30281ef47c
finish number literals;
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|
887 return Sequence( |
17
09d41f7490a8
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parents:
16
diff
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|
888 '[', |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
889 ZeroOrMore('='), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
890 nEquals(matchLength()), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff
changeset
|
891 '[', |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
892 ZeroOrMore( |
2a30281ef47c
finish number literals;
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|
893 TestNot(LongBracketsEnd()), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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diff
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|
894 ANY |
2a30281ef47c
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|
895 ), |
2a30281ef47c
finish number literals;
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|
896 push( match() ), |
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|
897 LongBracketsEnd() |
6
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|
898 ); |
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|
899 } |
5
9ef0fd711101
start LuaParser
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parents:
diff
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|
900 |
6
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|
901 Rule QuotedString(char quote) { |
17
09d41f7490a8
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|
902 StringBuilderVar buf = new StringBuilderVar(); |
6
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|
903 return Sequence( |
7
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diff
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|
904 quote, |
6
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|
905 ZeroOrMore( |
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|
906 FirstOf( |
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|
907 Sequence( |
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|
908 NoneOf("\\\n"+quote), |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
909 buf.append(matchedChar()) |
6
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|
910 ), |
17
09d41f7490a8
add local variables
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|
911 EscSeq(buf) |
6
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|
912 ) |
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|
913 ), |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
914 quote, |
17
09d41f7490a8
add local variables
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|
915 push( buf.getString() ) |
6
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916 ); |
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|
917 } |
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|
918 |
17
09d41f7490a8
add local variables
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parents:
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diff
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|
919 Rule EscSeq(StringBuilderVar buf) { |
6
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|
920 return Sequence( |
7
bca8fc5d928b
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|
921 '\\', |
6
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|
922 FirstOf( |
17
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parents:
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diff
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|
923 Sequence( 'a', buf.append('\u0007') ), |
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parents:
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diff
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|
924 Sequence( 'b', buf.append('\b') ), |
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parents:
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diff
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|
925 Sequence( 'f', buf.append('\f') ), |
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parents:
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diff
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|
926 Sequence( 'n', buf.append('\n') ), |
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parents:
16
diff
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|
927 Sequence( 'r', buf.append('\r') ), |
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parents:
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diff
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|
928 Sequence( 't', buf.append('\t') ), |
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parents:
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diff
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|
929 Sequence( 'v', buf.append('\u000b') ), |
09d41f7490a8
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parents:
16
diff
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|
930 Sequence( '\\', buf.append('\\') ), |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
931 Sequence( '"', buf.append('"') ), |
09d41f7490a8
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parents:
16
diff
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|
932 Sequence( '\'', buf.append('\'') ), |
7
bca8fc5d928b
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parents:
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diff
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|
933 Sequence( |
bca8fc5d928b
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parents:
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|
934 'x', |
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parents:
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diff
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|
935 Sequence( HexDigit(), HexDigit() ), |
17
09d41f7490a8
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parents:
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diff
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|
936 buf.append( (char)Integer.parseInt(match(),16) ) |
7
bca8fc5d928b
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|
937 ), |
bca8fc5d928b
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parents:
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diff
changeset
|
938 Sequence( |
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work on expressions
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939 Sequence( |
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work on expressions
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940 Digit(), |
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work on expressions
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|
941 Optional( |
bca8fc5d928b
work on expressions
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|
942 Digit(), |
bca8fc5d928b
work on expressions
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|
943 Optional( |
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944 Digit() |
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945 ) |
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946 ) |
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947 ), |
17
09d41f7490a8
add local variables
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948 buf.append( (char)Integer.parseInt(match()) ) |
7
bca8fc5d928b
work on expressions
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949 ) |
6
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950 ) |
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951 ); |
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952 } |
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953 |
12
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954 Rule Spaces() { |
14
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955 return ZeroOrMore( |
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956 FirstOf( |
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957 AnyOf(" \t"), |
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958 Comment(), |
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959 Sequence( '\\', EndOfLine() ), |
16
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960 Sequence( AnyOf("\r\n"), parens > 0 ) |
14
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|
961 ) |
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962 ); |
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963 } |
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964 |
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965 Rule Comment() { |
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966 return Sequence( |
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967 "--[", |
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968 ZeroOrMore('='), |
16
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969 nEquals(matchLength()), |
14
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970 '[', |
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971 ZeroOrMore( |
16
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finish number literals;
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972 TestNot(LongBracketsEnd()), |
14
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973 ANY |
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974 ), |
16
2a30281ef47c
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975 LongBracketsEnd() |
14
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976 ); |
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977 } |
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978 |
16
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979 Rule LongBracketsEnd() { |
2a30281ef47c
finish number literals;
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980 return Sequence( ']', ZeroOrMore('='), nEquals==matchLength(), ']' ); |
7
bca8fc5d928b
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981 } |
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982 |
18
3971113699b8
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983 static boolean action(Object obj) { |
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984 return true; |
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985 } |
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986 |
12
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987 // for debugging |
14
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988 boolean print(Object o) { |
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989 System.out.println(o); |
12
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990 return true; |
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991 } |
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992 |
5
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993 // for testing |
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start LuaParser
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994 public static void main(String[] args) throws Exception { |
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start LuaParser
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995 LuaParser parser = Parboiled.createParser(LuaParser.class); |
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996 while( true ) { |
6
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997 String input = new Scanner(System.in).nextLine(); |
5
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998 ParsingResult<?> result = new ReportingParseRunner(parser.Target()).run(input); |
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start LuaParser
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999 if( result.hasErrors() ) { |
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1000 System.out.println("Parse Errors:\n" + ErrorUtils.printParseErrors(result)); |
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1001 } else { |
11
b7d7069fee58
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|
1002 Expr expr = expr(result.resultValue); |
5
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1003 LuaState lua = new LuaState(); |
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start LuaParser
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1004 Object val = expr.eval(lua); |
9ef0fd711101
start LuaParser
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1005 System.out.println("Result: "+Lua.toString(val)); |
9ef0fd711101
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1006 } |
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start LuaParser
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1007 } |
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start LuaParser
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1008 } |
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1009 } |