Mercurial Hosting > luan
annotate src/luan/interp/LuaParser.java @ 33:8793c71ad47a
change numeric for syntax
git-svn-id: https://luan-java.googlecode.com/svn/trunk@34 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Sun, 16 Dec 2012 05:07:42 +0000 |
parents | c3eab5a3ce3c |
children | 0cdc1da466ee |
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1 package luan.interp; |
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2 |
12
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3 import java.util.Set; |
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4 import java.util.HashSet; |
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5 import java.util.Arrays; |
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6 import java.util.List; |
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7 import java.util.ArrayList; |
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8 import java.util.Scanner; |
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9 import org.parboiled.BaseParser; |
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10 import org.parboiled.Parboiled; |
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11 import org.parboiled.Rule; |
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12 import org.parboiled.parserunners.ReportingParseRunner; |
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13 import org.parboiled.support.ParsingResult; |
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14 import org.parboiled.support.Var; |
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15 import org.parboiled.support.StringVar; |
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16 import org.parboiled.support.StringBuilderVar; |
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17 import org.parboiled.support.ValueStack; |
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18 import org.parboiled.errors.ErrorUtils; |
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19 import luan.Lua; |
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20 import luan.LuaNumber; |
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21 import luan.LuaState; |
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22 |
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23 |
30
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24 class LuaParser extends BaseParser<Object> { |
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25 |
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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; |
32
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32 final List<String> upValueSymbols = new ArrayList<String>(); |
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33 final List<UpValue.Getter> upValueGetters = new ArrayList<UpValue.Getter>(); |
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34 |
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35 Frame(Frame parent) { |
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36 this.parent = parent; |
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37 } |
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38 |
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39 int stackIndex(String name) { |
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40 int i = symbols.size(); |
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41 while( --i >= 0 ) { |
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42 if( symbols.get(i).equals(name) ) |
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43 return i; |
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44 } |
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45 return -1; |
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46 } |
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47 |
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48 int upValueIndex(String name) { |
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49 int i = upValueSymbols.size(); |
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50 while( --i >= 0 ) { |
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51 if( upValueSymbols.get(i).equals(name) ) |
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52 return i; |
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53 } |
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54 if( parent==null ) |
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55 return -1; |
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56 i = parent.stackIndex(name); |
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57 if( i != -1 ) { |
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58 upValueGetters.add(new UpValue.StackGetter(i)); |
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59 } else { |
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60 i = parent.upValueIndex(name); |
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61 if( i == -1 ) |
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62 return -1; |
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63 upValueGetters.add(new UpValue.NestedGetter(i)); |
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64 } |
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65 upValueSymbols.add(name); |
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66 return upValueSymbols.size() - 1; |
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67 } |
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68 } |
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69 |
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70 static final UpValue.Getter[] NO_UP_VALUE_GETTERS = new UpValue.Getter[0]; |
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71 |
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72 int nEquals; |
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73 int parens = 0; |
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74 Frame frame = new Frame(null); |
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75 |
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76 boolean nEquals(int n) { |
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77 nEquals = n; |
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78 return true; |
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79 } |
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80 |
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81 boolean incParens() { |
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82 parens++; |
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83 return true; |
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84 } |
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85 |
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86 boolean decParens() { |
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87 parens--; |
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88 return true; |
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89 } |
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90 |
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91 List<String> symbols() { |
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92 return frame.symbols; |
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93 } |
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94 |
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95 int symbolsSize() { |
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96 return frame.symbols.size(); |
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97 } |
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98 |
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99 boolean addSymbol(String name) { |
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100 frame.symbols.add(name); |
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101 if( frame.stackSize < symbolsSize() ) |
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102 frame.stackSize = symbolsSize(); |
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103 return true; |
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104 } |
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105 |
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106 boolean addSymbols(List<String> names) { |
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107 frame.symbols.addAll(names); |
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108 if( frame.stackSize < symbolsSize() ) |
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109 frame.stackSize = symbolsSize(); |
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110 return true; |
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111 } |
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112 |
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113 int stackIndex(String name) { |
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114 return frame.stackIndex(name); |
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115 } |
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116 |
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117 boolean popSymbols(int n) { |
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118 List<String> symbols = frame.symbols; |
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119 while( n-- > 0 ) { |
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120 symbols.remove(symbols.size()-1); |
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121 } |
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122 return true; |
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123 } |
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124 |
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125 int upValueIndex(String name) { |
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126 return frame.upValueIndex(name); |
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127 } |
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128 |
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129 boolean incLoops() { |
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130 frame.loops++; |
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131 return true; |
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132 } |
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133 |
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134 boolean decLoops() { |
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135 frame.loops--; |
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136 return true; |
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137 } |
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138 |
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139 Chunk newChunk() { |
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140 return new Chunk( (Stmt)pop(), frame.stackSize, symbolsSize(), frame.isVarArg, frame.upValueGetters.toArray(NO_UP_VALUE_GETTERS) ); |
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141 } |
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142 |
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143 Rule Target() { |
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144 return Sequence( |
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145 Spaces(), |
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146 FirstOf( |
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147 Sequence( ExpList(), EOI ), |
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148 Sequence( |
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149 action( frame.isVarArg = true ), |
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150 Block(), |
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151 EOI, |
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152 push( newChunk() ) |
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153 ) |
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154 ) |
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155 ); |
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156 } |
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157 |
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158 Rule Block() { |
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159 Var<List<Stmt>> stmts = new Var<List<Stmt>>(new ArrayList<Stmt>()); |
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160 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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161 return Sequence( |
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162 Optional( Stmt(stmts) ), |
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163 ZeroOrMore( |
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164 StmtSep(), |
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165 Optional( Stmt(stmts) ) |
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166 ), |
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167 push( newBlock(stmts.get(),stackStart.get()) ) |
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168 ); |
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169 } |
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170 |
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171 Stmt newBlock(List<Stmt> stmts,int stackStart) { |
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172 int stackEnd = symbolsSize(); |
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173 popSymbols( stackEnd - stackStart ); |
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174 if( stmts.isEmpty() ) |
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175 return Stmt.EMPTY; |
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176 if( stmts.size()==1 && stackStart==stackEnd ) |
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177 return stmts.get(0); |
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178 return new Block( stmts.toArray(new Stmt[0]), stackStart, stackEnd ); |
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179 } |
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180 |
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181 Rule StmtSep() { |
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182 return Sequence( |
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183 FirstOf( |
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184 ';', |
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185 Sequence( |
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186 Optional( "--", ZeroOrMore(NoneOf("\r\n")) ), |
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187 EndOfLine() |
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188 ) |
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189 ), |
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190 Spaces() |
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191 ); |
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192 } |
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193 |
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194 Rule EndOfLine() { |
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195 return FirstOf("\r\n", '\r', '\n'); |
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196 } |
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197 |
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198 Rule Stmt(Var<List<Stmt>> stmts) { |
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199 return FirstOf( |
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200 LocalStmt(stmts), |
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201 Sequence( |
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202 FirstOf( |
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203 ReturnStmt(), |
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204 FunctionStmt(), |
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205 LocalFunctionStmt(), |
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206 BreakStmt(), |
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207 GenericForStmt(), |
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208 NumericForStmt(), |
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209 DoStmt(), |
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210 WhileStmt(), |
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211 RepeatStmt(), |
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212 IfStmt(), |
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213 SetStmt(), |
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214 ExpressionsStmt() |
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215 ), |
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216 stmts.get().add( (Stmt)pop() ) |
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217 ) |
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218 ); |
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219 } |
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220 |
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221 Rule ReturnStmt() { |
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222 return Sequence( |
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223 Keyword("return"), Expressions(), |
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224 push( new ReturnStmt( (Expressions)pop() ) ) |
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225 ); |
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226 } |
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227 |
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228 Rule FunctionStmt() { |
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229 return Sequence( |
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230 Keyword("function"), FnName(), Function(), |
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231 push( new SetStmt( (Settable)pop(1), expr(pop()) ) ) |
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232 ); |
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233 } |
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234 |
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235 Rule FnName() { |
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236 return Sequence( |
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237 push(null), // marker |
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238 Name(), |
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239 ZeroOrMore( |
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240 '.', Spaces(), |
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241 makeVarExp(), |
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242 NameExpr() |
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243 ), |
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244 makeSettableVar() |
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245 ); |
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246 } |
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247 |
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248 Rule LocalFunctionStmt() { |
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249 return Sequence( |
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250 Keyword("local"), Keyword("function"), |
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251 Name(), |
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252 addSymbol( (String)pop() ), |
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253 Function(), |
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254 push( new SetStmt( new SetLocalVar(symbolsSize()-1), expr(pop()) ) ) |
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255 ); |
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256 } |
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257 |
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258 Rule BreakStmt() { |
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259 return Sequence( |
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260 Keyword("break"), |
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261 frame.loops > 0, |
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262 push( new BreakStmt() ) |
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263 ); |
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264 } |
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265 |
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266 Rule GenericForStmt() { |
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267 Var<Integer> stackStart = new Var<Integer>(symbolsSize()); |
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268 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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269 return Sequence( |
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270 Keyword("for"), NameList(names), Keyword("in"), Expr(), Keyword("do"), |
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271 addSymbols(names.get()), |
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272 LoopBlock(), Keyword("end"), |
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273 push( new GenericForStmt( stackStart.get(), symbolsSize() - stackStart.get(), expr(pop(1)), (Stmt)pop() ) ), |
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274 popSymbols( symbolsSize() - stackStart.get() ) |
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275 ); |
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276 } |
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277 |
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278 Rule NumericForStmt() { |
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279 return Sequence( |
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280 Keyword("for"), Name(), '=', Spaces(), Expr(), Keyword("to"), Expr(), |
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281 push( new ConstExpr(new LuaNumber(1)) ), // default step |
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282 Optional( |
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283 Keyword("step"), |
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284 drop(), |
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285 Expr() |
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286 ), |
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287 addSymbol( (String)pop(3) ), // add "for" var to symbols |
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288 Keyword("do"), LoopBlock(), Keyword("end"), |
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289 push( new NumericForStmt( symbolsSize()-1, expr(pop(3)), expr(pop(2)), expr(pop(1)), (Stmt)pop() ) ), |
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290 popSymbols(1) |
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291 ); |
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292 } |
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293 |
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294 Rule DoStmt() { |
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295 return Sequence( |
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296 Keyword("do"), Block(), Keyword("end") |
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297 ); |
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298 } |
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299 |
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300 Rule LocalStmt(Var<List<Stmt>> stmts) { |
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301 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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302 return Sequence( |
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303 Keyword("local"), NameList(names), |
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304 Optional( |
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305 '=', Spaces(), ExpList(), |
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306 stmts.get().add( newSetLocalStmt(names.get().size()) ) |
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307 ), |
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308 addSymbols(names.get()) |
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309 ); |
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310 } |
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311 |
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312 Rule NameList(Var<List<String>> names) { |
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313 return Sequence( |
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314 Name(), |
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315 names.get().add( (String)pop() ), |
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316 ZeroOrMore( |
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317 ',', Spaces(), Name(), |
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318 names.get().add( (String)pop() ) |
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319 ) |
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320 ); |
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321 } |
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322 |
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323 SetStmt newSetLocalStmt(int nVars) { |
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324 Expressions values = (Expressions)pop(); |
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325 SetLocalVar[] vars = new SetLocalVar[nVars]; |
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326 int stackStart = symbolsSize(); |
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327 for( int i=0; i<vars.length; i++ ) { |
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328 vars[i] = new SetLocalVar(stackStart+i); |
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329 } |
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330 return new SetStmt( vars, values ); |
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331 } |
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332 |
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333 Rule WhileStmt() { |
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334 return Sequence( |
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335 Keyword("while"), Expr(), Keyword("do"), LoopBlock(), Keyword("end"), |
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336 push( new WhileStmt( expr(pop(1)), (Stmt)pop() ) ) |
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337 ); |
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338 } |
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339 |
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340 Rule RepeatStmt() { |
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341 return Sequence( |
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342 Keyword("repeat"), LoopBlock(), Keyword("until"), Expr(), |
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343 push( new RepeatStmt( (Stmt)pop(1), expr(pop()) ) ) |
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344 ); |
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345 } |
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346 |
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347 Rule LoopBlock() { |
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348 return Sequence( incLoops(), Block(), decLoops() ); |
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349 } |
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350 |
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351 Rule IfStmt() { |
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352 Var<Integer> n = new Var<Integer>(1); |
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353 return Sequence( |
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354 Keyword("if"), Expr(), Keyword("then"), Block(), |
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355 push(Stmt.EMPTY), |
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356 ZeroOrMore( |
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357 Keyword("elseif"), drop(), Expr(), Keyword("then"), Block(), |
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358 push(Stmt.EMPTY), |
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359 n.set(n.get()+1) |
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360 ), |
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361 Optional( |
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362 Keyword("else"), drop(), Block() |
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363 ), |
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364 Keyword("end"), |
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365 buildIfStmt(n.get()) |
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366 ); |
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367 } |
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368 |
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369 boolean buildIfStmt(int n) { |
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370 while( n-- > 0 ) { |
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371 Stmt elseStmt = (Stmt)pop(); |
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372 Stmt thenStmt = (Stmt)pop(); |
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373 Expr cnd = expr(pop()); |
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374 push( new IfStmt(cnd,thenStmt,elseStmt) ); |
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375 } |
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376 return true; |
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377 } |
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378 |
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379 Rule SetStmt() { |
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380 return Sequence( |
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381 VarList(), |
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382 '=', Spaces(), |
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383 ExpList(), |
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384 push( newSetStmt() ) |
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385 ); |
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386 } |
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387 |
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388 Rule ExpressionsStmt() { |
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389 return Sequence( |
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390 ExpList(), |
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391 push( new ExpressionsStmt((Expressions)pop()) ) |
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392 ); |
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393 } |
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394 |
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395 SetStmt newSetStmt() { |
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396 Expressions values = (Expressions)pop(); |
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397 @SuppressWarnings("unchecked") |
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398 List<Settable> vars = (List<Settable>)pop(); |
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399 return new SetStmt( vars.toArray(new Settable[0]), values ); |
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400 } |
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401 |
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402 Rule VarList() { |
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403 Var<List<Settable>> vars = new Var<List<Settable>>(new ArrayList<Settable>()); |
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404 return Sequence( |
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405 SettableVar(), |
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406 vars.get().add( (Settable)pop() ), |
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407 ZeroOrMore( |
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408 ',', Spaces(), SettableVar(), |
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409 vars.get().add( (Settable)pop() ) |
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410 ), |
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411 push(vars.get()) |
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412 ); |
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413 } |
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414 |
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415 Rule SettableVar() { |
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416 return Sequence( Var(), makeSettableVar() ); |
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417 } |
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418 |
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419 boolean makeSettableVar() { |
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420 Object obj2 = pop(); |
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421 if( obj2==null ) |
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422 return false; |
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423 Object obj1 = pop(); |
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424 if( obj1!=null ) { |
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425 Expr key = expr(obj2); |
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426 Expr table = expr(obj1); |
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427 return push( new SetTableEntry(table,key) ); |
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428 } |
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429 String name = (String)obj2; |
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430 int index = stackIndex(name); |
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431 if( index != -1 ) |
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432 return push( new SetLocalVar(index) ); |
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433 index = upValueIndex(name); |
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434 if( index != -1 ) |
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435 return push( new SetUpVar(index) ); |
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436 return push( new SetTableEntry( EnvExpr.INSTANCE, new ConstExpr(name) ) ); |
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437 } |
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438 |
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439 Rule Expr() { |
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440 return FirstOf( |
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441 VarArgs(), |
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442 OrExpr() |
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443 ); |
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444 } |
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445 |
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446 Rule OrExpr() { |
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447 return Sequence( |
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448 AndExpr(), |
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449 ZeroOrMore( "or", Spaces(), AndExpr(), push( new OrExpr(expr(pop(1)),expr(pop())) ) ) |
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450 ); |
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451 } |
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452 |
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453 Rule AndExpr() { |
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454 return Sequence( |
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455 RelExpr(), |
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456 ZeroOrMore( "and", Spaces(), RelExpr(), push( new AndExpr(expr(pop(1)),expr(pop())) ) ) |
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457 ); |
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458 } |
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459 |
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460 Rule RelExpr() { |
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461 return Sequence( |
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462 ConcatExpr(), |
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463 ZeroOrMore( |
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464 FirstOf( |
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465 Sequence( "==", Spaces(), ConcatExpr(), push( new EqExpr(expr(pop(1)),expr(pop())) ) ), |
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466 Sequence( "~=", Spaces(), ConcatExpr(), push( new NotExpr(new EqExpr(expr(pop(1)),expr(pop()))) ) ), |
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467 Sequence( "<=", Spaces(), ConcatExpr(), push( new LeExpr(expr(pop(1)),expr(pop())) ) ), |
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468 Sequence( ">=", Spaces(), ConcatExpr(), push( new LeExpr(expr(pop()),expr(pop())) ) ), |
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469 Sequence( "<", Spaces(), ConcatExpr(), push( new LtExpr(expr(pop(1)),expr(pop())) ) ), |
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470 Sequence( ">", Spaces(), ConcatExpr(), push( new LtExpr(expr(pop()),expr(pop())) ) ) |
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471 ) |
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472 ) |
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473 ); |
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474 } |
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475 |
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476 Rule ConcatExpr() { |
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477 return Sequence( |
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478 SumExpr(), |
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479 Optional( "..", Spaces(), ConcatExpr(), push( new ConcatExpr(expr(pop(1)),expr(pop())) ) ) |
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480 ); |
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481 } |
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482 |
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483 Rule SumExpr() { |
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484 return Sequence( |
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485 TermExpr(), |
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486 ZeroOrMore( |
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487 FirstOf( |
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488 Sequence( '+', Spaces(), TermExpr(), push( new AddExpr(expr(pop(1)),expr(pop())) ) ), |
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489 Sequence( '-', TestNot('-'), Spaces(), TermExpr(), push( new SubExpr(expr(pop(1)),expr(pop())) ) ) |
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490 ) |
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491 ) |
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492 ); |
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493 } |
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494 |
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495 Rule TermExpr() { |
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496 return Sequence( |
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497 UnaryExpr(), |
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498 ZeroOrMore( |
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499 FirstOf( |
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500 Sequence( '*', Spaces(), UnaryExpr(), push( new MulExpr(expr(pop(1)),expr(pop())) ) ), |
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501 Sequence( '/', Spaces(), UnaryExpr(), push( new DivExpr(expr(pop(1)),expr(pop())) ) ), |
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502 Sequence( '%', Spaces(), UnaryExpr(), push( new ModExpr(expr(pop(1)),expr(pop())) ) ) |
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503 ) |
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504 ) |
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505 ); |
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506 } |
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507 |
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508 Rule UnaryExpr() { |
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509 return FirstOf( |
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510 Sequence( '#', Spaces(), PowExpr(), push( new LenExpr(expr(pop())) ) ), |
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511 Sequence( '-', TestNot('-'), Spaces(), PowExpr(), push( new UnmExpr(expr(pop())) ) ), |
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512 Sequence( "not", Spaces(), PowExpr(), push( new NotExpr(expr(pop())) ) ), |
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513 PowExpr() |
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514 ); |
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515 } |
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516 |
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517 Rule PowExpr() { |
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518 return Sequence( |
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519 SingleExpr(), |
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520 Optional( '^', Spaces(), PowExpr(), push( new PowExpr(expr(pop(1)),expr(pop())) ) ) |
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521 ); |
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522 } |
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523 |
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524 Rule SingleExpr() { |
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525 return FirstOf( |
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526 FunctionExpr(), |
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527 TableExpr(), |
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528 VarExp(), |
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529 LiteralExpr() |
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530 ); |
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531 } |
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532 |
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533 Rule FunctionExpr() { |
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534 return Sequence( "function", Spaces(), Function() ); |
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535 } |
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536 |
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537 Rule Function() { |
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538 Var<List<String>> names = new Var<List<String>>(new ArrayList<String>()); |
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539 return Sequence( |
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540 action( frame = new Frame(frame) ), |
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541 '(', incParens(), Spaces(), |
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542 Optional( |
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543 FirstOf( |
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544 Sequence( |
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545 NameList(names), addSymbols(names.get()), |
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546 Optional( ',', Spaces(), VarArgName() ) |
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547 ), |
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548 VarArgName() |
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549 ) |
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550 ), |
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551 ')', decParens(), Spaces(), Block(), Keyword("end"), |
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552 push( newChunk() ), |
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553 action( frame = frame.parent ) |
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554 ); |
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555 } |
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556 |
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557 Rule VarArgName() { |
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558 return Sequence( |
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559 "...", Spaces(), |
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560 action( frame.isVarArg = true ) |
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561 ); |
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562 } |
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563 |
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564 Rule VarArgs() { |
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565 return Sequence( |
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566 "...", Spaces(), |
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567 frame.isVarArg, |
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568 push( VarArgs.INSTANCE ) |
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569 ); |
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570 } |
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571 |
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572 Rule TableExpr() { |
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573 Var<List<TableExpr.Field>> fields = new Var<List<TableExpr.Field>>(new ArrayList<TableExpr.Field>()); |
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574 Var<ExpList.Builder> builder = new Var<ExpList.Builder>(new ExpList.Builder()); |
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575 return Sequence( |
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576 '{', incParens(), Spaces(), |
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577 Optional( |
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578 Field(fields,builder), |
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579 ZeroOrMore( |
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580 FieldSep(), |
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581 Field(fields,builder) |
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582 ), |
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583 Optional( FieldSep() ) |
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584 ), |
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585 '}', decParens(), |
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586 Spaces(), |
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587 push( new TableExpr( fields.get().toArray(new TableExpr.Field[0]), builder.get().build() ) ) |
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588 ); |
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589 } |
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590 |
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591 Rule FieldSep() { |
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592 return Sequence( AnyOf(",;"), Spaces() ); |
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593 } |
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594 |
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595 Rule Field(Var<List<TableExpr.Field>> fields,Var<ExpList.Builder> builder) { |
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596 return FirstOf( |
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597 Sequence( |
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598 FirstOf( SubExpr(), NameExpr() ), |
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599 '=', Spaces(), Expr(), |
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600 fields.get().add( new TableExpr.Field( expr(pop(1)), expr(pop()) ) ) |
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601 ), |
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602 Sequence( |
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603 Expr(), |
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604 addToExpList(builder.get()) |
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605 ) |
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606 ); |
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607 } |
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608 |
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609 static Expr expr(Object obj) { |
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610 if( obj instanceof Expressions ) |
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611 return new ExpressionsExpr((Expressions)obj); |
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612 return (Expr)obj; |
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613 } |
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614 |
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615 Rule VarExp() { |
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616 return Sequence( |
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617 Var(), |
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618 makeVarExp() |
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619 ); |
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620 } |
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621 |
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622 Rule Var() { |
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623 return Sequence( |
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624 FirstOf( |
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625 Sequence( |
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626 '(', incParens(), Spaces(), Expr(), ')', decParens(), Spaces(), |
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627 push(expr(pop())), |
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628 push(null) // marker |
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629 ), |
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630 Sequence( |
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631 push(null), // marker |
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632 Name() |
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633 ) |
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634 ), |
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635 ZeroOrMore( |
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636 makeVarExp(), |
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637 FirstOf( |
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638 SubExpr(), |
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639 Sequence( '.', Spaces(), NameExpr() ), |
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640 Sequence( |
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641 Args(), |
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642 push(null) // marker |
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643 ) |
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644 ) |
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645 ) |
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646 ); |
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647 } |
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648 |
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649 boolean makeVarExp() { |
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650 Object obj2 = pop(); |
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651 if( obj2==null ) |
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652 return true; |
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653 Object obj1 = pop(); |
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654 if( obj1 != null ) |
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655 return push( new GetExpr( expr(obj1), expr(obj2) ) ); |
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656 String name = (String)obj2; |
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657 int index = stackIndex(name); |
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658 if( index != -1 ) |
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659 return push( new GetLocalVar(index) ); |
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660 index = upValueIndex(name); |
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661 if( index != -1 ) |
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662 return push( new GetUpVar(index) ); |
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663 return push( new GetExpr( EnvExpr.INSTANCE, new ConstExpr(name) ) ); |
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664 } |
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665 |
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666 // function should be on top of the stack |
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667 Rule Args() { |
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668 return Sequence( |
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669 FirstOf( |
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670 Sequence( |
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671 '(', incParens(), Spaces(), Expressions(), ')', decParens(), Spaces() |
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672 ), |
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673 Sequence( |
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674 TableExpr(), |
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675 push( new ExpList.SingleExpList(expr(pop())) ) |
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676 ), |
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677 Sequence( |
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678 StringLiteral(), Spaces(), |
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679 push( new ExpList.SingleExpList(new ConstExpr(pop())) ) |
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680 ) |
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681 ), |
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682 push( new FnCall( expr(pop(1)), (Expressions)pop() ) ) |
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683 ); |
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684 } |
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685 |
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686 Rule Expressions() { |
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687 return FirstOf( |
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688 ExpList(), |
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689 push( ExpList.emptyExpList ) |
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690 ); |
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691 } |
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692 |
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693 Rule ExpList() { |
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694 Var<ExpList.Builder> builder = new Var<ExpList.Builder>(new ExpList.Builder()); |
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695 return Sequence( |
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696 Expr(), |
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697 addToExpList(builder.get()), |
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698 ZeroOrMore( |
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699 ',', Spaces(), Expr(), |
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700 addToExpList(builder.get()) |
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701 ), |
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702 push( builder.get().build() ) |
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703 ); |
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704 } |
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705 |
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706 boolean addToExpList(ExpList.Builder bld) { |
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707 Object obj = pop(); |
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708 if( obj instanceof Expressions ) { |
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709 bld.add( (Expressions)obj ); |
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710 } else { |
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711 bld.add( (Expr)obj ); |
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712 } |
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713 return true; |
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714 } |
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715 |
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716 Rule SubExpr() { |
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717 return Sequence( '[', incParens(), Spaces(), Expr(), ']', decParens(), Spaces() ); |
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718 } |
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719 |
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720 Rule NameExpr() { |
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721 return Sequence( |
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722 Name(), |
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723 push( new ConstExpr((String)pop()) ) |
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724 ); |
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725 } |
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726 |
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727 Rule Name() { |
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728 return Sequence( |
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729 Sequence( |
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730 NameFirstChar(), |
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731 ZeroOrMore( NameChar() ) |
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732 ), |
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733 !keywords.contains(match()), |
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734 push(match()), |
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735 Spaces() |
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736 ); |
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737 } |
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738 |
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739 Rule NameChar() { |
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740 return FirstOf( NameFirstChar(), Digit() ); |
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
741 } |
09d41f7490a8
add local variables
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parents:
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|
742 |
09d41f7490a8
add local variables
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parents:
16
diff
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|
743 Rule NameFirstChar() { |
9
600676034a1a
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parents:
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|
744 return FirstOf( |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
745 CharRange('a', 'z'), |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
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|
746 CharRange('A', 'Z'), |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
747 '_' |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
748 ); |
600676034a1a
add variables and tables
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parents:
8
diff
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|
749 } |
600676034a1a
add variables and tables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
750 |
17
09d41f7490a8
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parents:
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|
751 Rule Keyword(String keyword) { |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
752 return Sequence( |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
753 keyword, |
09d41f7490a8
add local variables
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parents:
16
diff
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|
754 TestNot( NameChar() ), |
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
755 Spaces() |
09d41f7490a8
add local variables
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parents:
16
diff
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|
756 ); |
12
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
757 } |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
758 |
17
09d41f7490a8
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parents:
16
diff
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|
759 static final Set<String> keywords = new HashSet<String>(Arrays.asList( |
12
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
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|
760 "and", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
761 "break", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
762 "do", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
763 "else", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
764 "elseif", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
765 "end", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
766 "false", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
767 "for", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
768 "function", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
769 "goto", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
770 "if", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
771 "in", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
772 "local", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
773 "nil", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
774 "not", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
775 "or", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
776 "repeat", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
777 "return", |
33
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change numeric for syntax
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
32
diff
changeset
|
778 "step", |
12
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
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|
779 "then", |
33
8793c71ad47a
change numeric for syntax
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
32
diff
changeset
|
780 "to", |
12
9cea1aea5eef
CmdLine can run files
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parents:
11
diff
changeset
|
781 "true", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
782 "until", |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
783 "while" |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
784 )); |
9cea1aea5eef
CmdLine can run files
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
11
diff
changeset
|
785 |
7
bca8fc5d928b
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
786 Rule LiteralExpr() { |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
787 return Sequence( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
788 Literal(), Spaces(), |
5
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parents:
diff
changeset
|
789 push(new ConstExpr(pop())) |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
790 ); |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
791 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
792 |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
793 Rule Literal() { |
5
9ef0fd711101
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parents:
diff
changeset
|
794 return FirstOf( |
7
bca8fc5d928b
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parents:
6
diff
changeset
|
795 NilLiteral(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
796 BooleanLiteral(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
797 NumberLiteral(), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
798 StringLiteral() |
5
9ef0fd711101
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parents:
diff
changeset
|
799 ); |
9ef0fd711101
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parents:
diff
changeset
|
800 } |
9ef0fd711101
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parents:
diff
changeset
|
801 |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
802 Rule NilLiteral() { |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
803 return Sequence( "nil", push(null) ); |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
804 } |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
805 |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
806 Rule BooleanLiteral() { |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
807 return FirstOf( |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
808 Sequence( "true", push(true) ), |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
809 Sequence( "false", push(false) ) |
5
9ef0fd711101
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parents:
diff
changeset
|
810 ); |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
811 } |
9ef0fd711101
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parents:
diff
changeset
|
812 |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
813 Rule NumberLiteral() { |
5
9ef0fd711101
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parents:
diff
changeset
|
814 return Sequence( |
6
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parents:
5
diff
changeset
|
815 Number(), |
a315783c9524
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parents:
5
diff
changeset
|
816 push(new LuaNumber((Double)pop())) |
5
9ef0fd711101
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parents:
diff
changeset
|
817 ); |
9ef0fd711101
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parents:
diff
changeset
|
818 } |
9ef0fd711101
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parents:
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changeset
|
819 |
6
a315783c9524
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parents:
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diff
changeset
|
820 Rule Number() { |
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parents:
5
diff
changeset
|
821 return FirstOf( |
a315783c9524
more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
822 Sequence( |
a315783c9524
more parsing
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parents:
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diff
changeset
|
823 IgnoreCase("0x"), |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
824 HexNumber() |
6
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parents:
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diff
changeset
|
825 ), |
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parents:
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|
826 Sequence( |
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parents:
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changeset
|
827 DecNumber(), |
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parents:
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|
828 push(Double.parseDouble(match())) |
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parents:
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changeset
|
829 ) |
5
9ef0fd711101
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parents:
diff
changeset
|
830 ); |
9ef0fd711101
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parents:
diff
changeset
|
831 } |
9ef0fd711101
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parents:
diff
changeset
|
832 |
6
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parents:
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diff
changeset
|
833 Rule DecNumber() { |
5
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parents:
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changeset
|
834 return FirstOf( |
9ef0fd711101
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parents:
diff
changeset
|
835 Sequence( |
9ef0fd711101
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parents:
diff
changeset
|
836 Int(), |
7
bca8fc5d928b
work on expressions
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parents:
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diff
changeset
|
837 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
|
838 Exponent() |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
839 ), |
11
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
9
diff
changeset
|
840 Sequence( '.', Int(), Exponent() ) |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
841 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
842 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
843 |
11
b7d7069fee58
add assignment statement and CmdLine
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
9
diff
changeset
|
844 Rule Exponent() { |
5
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
845 return Optional( |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
846 IgnoreCase('e'), |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
847 Optional(AnyOf("+-")), |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
848 Int() |
9ef0fd711101
start LuaParser
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parents:
diff
changeset
|
849 ); |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
850 } |
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
851 |
6
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more parsing
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parents:
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|
852 Rule Int() { |
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more parsing
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|
853 return OneOrMore(Digit()); |
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854 } |
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|
855 |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
856 Rule Digit() { |
2a30281ef47c
finish number literals;
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parents:
15
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857 return CharRange('0', '9'); |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
858 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
859 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
860 Rule HexNumber() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
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|
861 return FirstOf( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
862 Sequence( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
863 HexInt(), |
2a30281ef47c
finish number literals;
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parents:
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864 push( (double)Long.parseLong(match(),16) ), |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
865 Optional( '.', Optional(HexDec()) ), |
2a30281ef47c
finish number literals;
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parents:
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|
866 HexExponent() |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
867 ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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868 Sequence( push(0.0), '.', HexDec(), HexExponent() ) |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
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|
869 ); |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
870 } |
2a30281ef47c
finish number literals;
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parents:
15
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|
871 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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|
872 Rule HexDec() { |
2a30281ef47c
finish number literals;
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873 return Sequence( |
2a30281ef47c
finish number literals;
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parents:
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|
874 HexInt(), |
2a30281ef47c
finish number literals;
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|
875 push( (Double)pop() + (double)Long.parseLong(match(),16) / Math.pow(16,matchLength()) ) |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
876 ); |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
877 } |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
878 |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
879 Rule HexExponent() { |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
880 return Optional( |
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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|
881 IgnoreCase('p'), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
882 Sequence( |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
883 Optional(AnyOf("+-")), |
2a30281ef47c
finish number literals;
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parents:
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diff
changeset
|
884 HexInt() |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
885 ), |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
886 push( (Double)pop() * Math.pow(2,(double)Long.parseLong(match())) ) |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
887 ); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
888 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
889 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
890 Rule HexInt() { |
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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|
891 return OneOrMore(Digit()); |
2a30281ef47c
finish number literals;
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parents:
15
diff
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|
892 } |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
893 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
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|
894 |
6
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more parsing
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parents:
5
diff
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|
895 Rule HexDigit() { |
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|
896 return FirstOf( |
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|
897 Digit(), |
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parents:
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|
898 AnyOf("abcdefABCDEF") |
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more parsing
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|
899 ); |
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parents:
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|
900 } |
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diff
changeset
|
901 |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
902 Rule StringLiteral() { |
6
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|
903 return FirstOf( |
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diff
changeset
|
904 QuotedString('"'), |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
905 QuotedString('\''), |
2a30281ef47c
finish number literals;
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parents:
15
diff
changeset
|
906 LongString() |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
907 ); |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
908 } |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
909 |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
910 Rule LongString() { |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
911 return Sequence( |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
912 '[', |
16
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
913 ZeroOrMore('='), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
914 nEquals(matchLength()), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
915 '[', |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
916 ZeroOrMore( |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
917 TestNot(LongBracketsEnd()), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
918 ANY |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
919 ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
920 push( match() ), |
2a30281ef47c
finish number literals;
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
15
diff
changeset
|
921 LongBracketsEnd() |
6
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
922 ); |
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more parsing
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parents:
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diff
changeset
|
923 } |
5
9ef0fd711101
start LuaParser
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
diff
changeset
|
924 |
6
a315783c9524
more parsing
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parents:
5
diff
changeset
|
925 Rule QuotedString(char quote) { |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
changeset
|
926 StringBuilderVar buf = new StringBuilderVar(); |
6
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
927 return Sequence( |
7
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
6
diff
changeset
|
928 quote, |
6
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
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diff
changeset
|
929 ZeroOrMore( |
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more parsing
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
930 FirstOf( |
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parents:
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|
931 Sequence( |
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parents:
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diff
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|
932 NoneOf("\\\n"+quote), |
17
09d41f7490a8
add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
parents:
16
diff
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|
933 buf.append(matchedChar()) |
6
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more parsing
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|
934 ), |
17
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|
935 EscSeq(buf) |
6
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936 ) |
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937 ), |
7
bca8fc5d928b
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|
938 quote, |
17
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add local variables
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
939 push( buf.getString() ) |
6
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more parsing
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940 ); |
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941 } |
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942 |
17
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943 Rule EscSeq(StringBuilderVar buf) { |
6
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944 return Sequence( |
7
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945 '\\', |
6
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946 FirstOf( |
17
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add local variables
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947 Sequence( 'a', buf.append('\u0007') ), |
09d41f7490a8
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|
948 Sequence( 'b', buf.append('\b') ), |
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parents:
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|
949 Sequence( 'f', buf.append('\f') ), |
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parents:
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|
950 Sequence( 'n', buf.append('\n') ), |
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add local variables
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parents:
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|
951 Sequence( 'r', buf.append('\r') ), |
09d41f7490a8
add local variables
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|
952 Sequence( 't', buf.append('\t') ), |
09d41f7490a8
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|
953 Sequence( 'v', buf.append('\u000b') ), |
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add local variables
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|
954 Sequence( '\\', buf.append('\\') ), |
09d41f7490a8
add local variables
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|
955 Sequence( '"', buf.append('"') ), |
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add local variables
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|
956 Sequence( '\'', buf.append('\'') ), |
7
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work on expressions
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diff
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|
957 Sequence( |
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|
958 'x', |
bca8fc5d928b
work on expressions
fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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|
959 Sequence( HexDigit(), HexDigit() ), |
17
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add local variables
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|
960 buf.append( (char)Integer.parseInt(match(),16) ) |
7
bca8fc5d928b
work on expressions
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|
961 ), |
bca8fc5d928b
work on expressions
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parents:
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|
962 Sequence( |
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|
963 Sequence( |
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|
964 Digit(), |
bca8fc5d928b
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parents:
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diff
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|
965 Optional( |
bca8fc5d928b
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|
966 Digit(), |
bca8fc5d928b
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diff
changeset
|
967 Optional( |
bca8fc5d928b
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968 Digit() |
bca8fc5d928b
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|
969 ) |
bca8fc5d928b
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970 ) |
bca8fc5d928b
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971 ), |
17
09d41f7490a8
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parents:
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972 buf.append( (char)Integer.parseInt(match()) ) |
7
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973 ) |
6
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974 ) |
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975 ); |
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976 } |
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977 |
12
9cea1aea5eef
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978 Rule Spaces() { |
14
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979 return ZeroOrMore( |
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980 FirstOf( |
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|
981 AnyOf(" \t"), |
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982 Comment(), |
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|
983 Sequence( '\\', EndOfLine() ), |
16
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984 Sequence( AnyOf("\r\n"), parens > 0 ) |
14
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985 ) |
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986 ); |
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|
987 } |
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988 |
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989 Rule Comment() { |
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990 return Sequence( |
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991 "--[", |
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|
992 ZeroOrMore('='), |
16
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993 nEquals(matchLength()), |
14
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|
994 '[', |
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995 ZeroOrMore( |
16
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finish number literals;
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|
996 TestNot(LongBracketsEnd()), |
14
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|
997 ANY |
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whitespace handling;
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|
998 ), |
16
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|
999 LongBracketsEnd() |
14
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|
1000 ); |
2ddf85634d20
whitespace handling;
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1001 } |
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|
1002 |
16
2a30281ef47c
finish number literals;
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|
1003 Rule LongBracketsEnd() { |
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1004 return Sequence( ']', ZeroOrMore('='), nEquals==matchLength(), ']' ); |
7
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1005 } |
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|
1006 |
18
3971113699b8
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|
1007 static boolean action(Object obj) { |
3971113699b8
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|
1008 return true; |
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add NumericForStmt
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1009 } |
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add NumericForStmt
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1010 |
12
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|
1011 // for debugging |
14
2ddf85634d20
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1012 boolean print(Object o) { |
2ddf85634d20
whitespace handling;
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1013 System.out.println(o); |
12
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1014 return true; |
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1015 } |
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|
1016 |
5
9ef0fd711101
start LuaParser
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|
1017 } |