1324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/* 2324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [The "BSD licence"] 3324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Copyright (c) 2005-2007 Terence Parr 4324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver All rights reserved. 5324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 6324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Redistribution and use in source and binary forms, with or without 7324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver modification, are permitted provided that the following conditions 8324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver are met: 9324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 1. Redistributions of source code must retain the above copyright 10324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver notice, this list of conditions and the following disclaimer. 11324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 2. Redistributions in binary form must reproduce the above copyright 12324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver notice, this list of conditions and the following disclaimer in the 13324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver documentation and/or other materials provided with the distribution. 14324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 3. The name of the author may not be used to endorse or promote products 15324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver derived from this software without specific prior written permission. 16324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 17324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver*/ 28324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 29324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** ANTLR v3 grammar written in ANTLR v3 with AST construction */ 30324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruvergrammar ANTLRv3; 31324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 32324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruveroptions { 33324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver output=AST; 34324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ASTLabelType=CommonTree; 35324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 36324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 37324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruvertokens { 38324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver DOC_COMMENT; 39324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver PARSER; 40324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver LEXER; 41324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver RULE; 42324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver BLOCK; 43324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver OPTIONAL; 44324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver CLOSURE; 45324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver POSITIVE_CLOSURE; 46324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver SYNPRED; 47324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver RANGE; 48324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver CHAR_RANGE; 49324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver EPSILON; 50324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ALT; 51324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver EOR; 52324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver EOB; 53324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver EOA; // end of alt 54324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ID; 55324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ARG; 56324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ARGLIST; 57324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver RET; 58324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver LEXER_GRAMMAR; 59324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver PARSER_GRAMMAR; 60324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver TREE_GRAMMAR; 61324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver COMBINED_GRAMMAR; 62324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver INITACTION; 63324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver LABEL; // $x used in rewrite rules 64324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver TEMPLATE; 65324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver SCOPE='scope'; 66324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver SEMPRED; 67324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver GATED_SEMPRED; // {p}? => 68324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver SYN_SEMPRED; // (...) => it's a manually-specified synpred converted to sempred 69324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver BACKTRACK_SEMPRED; // auto backtracking mode syn pred converted to sempred 70324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver FRAGMENT='fragment'; 71324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver TREE_BEGIN='^('; 72324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ROOT='^'; 73324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver BANG='!'; 74324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver RANGE='..'; 75324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver REWRITE='->'; 76324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 77324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 78324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@members { 79324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver int gtype; 80324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public List<String> rules; 81324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 82324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 83324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@header { 84324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverpackage org.antlr.gunit.swingui.parsers; 85324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 86324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverimport java.util.List; 87324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 88324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 89324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@lexer::header { 90324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverpackage org.antlr.gunit.swingui.parsers; 91324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 92324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 93324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 94324c4644fee44b9898524c09511bd33c3f12e2dfBen GruvergrammarDef 95324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : DOC_COMMENT? 96324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( 'lexer' {gtype=LEXER_GRAMMAR;} // pure lexer 97324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 'parser' {gtype=PARSER_GRAMMAR;} // pure parser 98324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 'tree' {gtype=TREE_GRAMMAR;} // a tree parser 99324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | {gtype=COMBINED_GRAMMAR;} // merged parser/lexer 100324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 101324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver g='grammar' id ';' optionsSpec? tokensSpec? attrScope* action* 102324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver rule+ 103324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver EOF 104324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^( {adaptor.create(gtype,$g)} 105324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver id DOC_COMMENT? optionsSpec? tokensSpec? attrScope* action* rule+ 106324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 107324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 108324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 109324c4644fee44b9898524c09511bd33c3f12e2dfBen GruvertokensSpec 110324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : TOKENS tokenSpec+ '}' -> ^(TOKENS tokenSpec+) 111324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 112324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 113324c4644fee44b9898524c09511bd33c3f12e2dfBen GruvertokenSpec 114324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : TOKEN_REF 115324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( '=' (lit=STRING_LITERAL|lit=CHAR_LITERAL) -> ^('=' TOKEN_REF $lit) 116324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | -> TOKEN_REF 117324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 118324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ';' 119324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 120324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 121324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverattrScope 122324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : 'scope' id ACTION -> ^('scope' id ACTION) 123324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 124324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 125324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** Match stuff like @parser::members {int i;} */ 126324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruveraction 127324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '@' (actionScopeName '::')? id ACTION -> ^('@' actionScopeName? id ACTION) 128324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 129324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 130324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** Sometimes the scope names will collide with keywords; allow them as 131324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * ids for action scopes. 132324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 133324c4644fee44b9898524c09511bd33c3f12e2dfBen GruveractionScopeName 134324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : id 135324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | l='lexer' -> ID[$l] 136324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | p='parser' -> ID[$p] 137324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 138324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 139324c4644fee44b9898524c09511bd33c3f12e2dfBen GruveroptionsSpec 140324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : OPTIONS (option ';')+ '}' -> ^(OPTIONS option+) 141324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 142324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 143324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruveroption 144324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : id '=' optionValue -> ^('=' id optionValue) 145324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 146324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 147324c4644fee44b9898524c09511bd33c3f12e2dfBen GruveroptionValue 148324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : id 149324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | STRING_LITERAL 150324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | CHAR_LITERAL 151324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | INT 152324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | s='*' -> STRING_LITERAL[$s] // used for k=* 153324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 154324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 155324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrule 156324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverscope { 157324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver String name; 158324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 159324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@after{ 160324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver this.rules.add($rule::name); 161324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 162324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : DOC_COMMENT? 163324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( modifier=('protected'|'public'|'private'|'fragment') )? 164324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver id {$rule::name = $id.text;} 165324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver '!'? 166324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( arg=ARG_ACTION )? 167324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( 'returns' rt=ARG_ACTION )? 168324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver throwsSpec? optionsSpec? ruleScopeSpec? ruleAction* 169324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ':' altList ';' 170324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver exceptionGroup? 171324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^( RULE id {modifier!=null?adaptor.create(modifier):null} ^(ARG $arg)? ^(RET $rt)? 172324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver optionsSpec? ruleScopeSpec? ruleAction* 173324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver altList 174324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver exceptionGroup? 175324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver EOR["EOR"] 176324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 177324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 178324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 179324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** Match stuff like @init {int i;} */ 180324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverruleAction 181324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '@' id ACTION -> ^('@' id ACTION) 182324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 183324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 184324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverthrowsSpec 185324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : 'throws' id ( ',' id )* -> ^('throws' id+) 186324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 187324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 188324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverruleScopeSpec 189324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : 'scope' ACTION -> ^('scope' ACTION) 190324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 'scope' id (',' id)* ';' -> ^('scope' id+) 191324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 'scope' ACTION 192324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 'scope' id (',' id)* ';' 193324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^('scope' ACTION id+ ) 194324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 195324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 196324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverblock 197324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : lp='(' 198324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( (opts=optionsSpec)? ':' )? 199324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver a1=alternative rewrite ( '|' a2=alternative rewrite )* 200324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver rp=')' 201324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^( BLOCK[$lp,"BLOCK"] optionsSpec? (alternative rewrite?)+ EOB[$rp,"EOB"] ) 202324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 203324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 204324c4644fee44b9898524c09511bd33c3f12e2dfBen GruveraltList 205324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@init { 206324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver // must create root manually as it's used by invoked rules in real antlr tool. 207324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver // leave here to demonstrate use of {...} in rewrite rule 208324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver // it's really BLOCK[firstToken,"BLOCK"]; set line/col to previous ( or : token. 209324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver CommonTree blkRoot = (CommonTree)adaptor.create(BLOCK,input.LT(-1),"BLOCK"); 210324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 211324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : a1=alternative rewrite ( '|' a2=alternative rewrite )* 212324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^( {blkRoot} (alternative rewrite?)+ EOB["EOB"] ) 213324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 214324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 215324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruveralternative 216324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@init { 217324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Token firstToken = input.LT(1); 218324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Token prevToken = input.LT(-1); // either : or | I think 219324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 220324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : element+ -> ^(ALT[firstToken,"ALT"] element+ EOA["EOA"]) 221324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | -> ^(ALT[prevToken,"ALT"] EPSILON[prevToken,"EPSILON"] EOA["EOA"]) 222324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 223324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 224324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverexceptionGroup 225324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : ( exceptionHandler )+ ( finallyClause )? 226324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | finallyClause 227324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 228324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 229324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverexceptionHandler 230324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : 'catch' ARG_ACTION ACTION -> ^('catch' ARG_ACTION ACTION) 231324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 232324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 233324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverfinallyClause 234324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : 'finally' ACTION -> ^('finally' ACTION) 235324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 236324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 237324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverelement 238324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : elementNoOptionSpec 239324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 240324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 241324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverelementNoOptionSpec 242324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : id (labelOp='='|labelOp='+=') atom 243324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( ebnfSuffix -> ^( ebnfSuffix ^(BLOCK["BLOCK"] ^(ALT["ALT"] ^($labelOp id atom) EOA["EOA"]) EOB["EOB"])) 244324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | -> ^($labelOp id atom) 245324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 246324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | id (labelOp='='|labelOp='+=') block 247324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( ebnfSuffix -> ^( ebnfSuffix ^(BLOCK["BLOCK"] ^(ALT["ALT"] ^($labelOp id block) EOA["EOA"]) EOB["EOB"])) 248324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | -> ^($labelOp id block) 249324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 250324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | atom 251324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( ebnfSuffix -> ^( ebnfSuffix ^(BLOCK["BLOCK"] ^(ALT["ALT"] atom EOA["EOA"]) EOB["EOB"]) ) 252324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | -> atom 253324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 254324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ebnf 255324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ACTION 256324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | SEMPRED ( '=>' -> GATED_SEMPRED | -> SEMPRED ) 257324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | treeSpec 258324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( ebnfSuffix -> ^( ebnfSuffix ^(BLOCK["BLOCK"] ^(ALT["ALT"] treeSpec EOA["EOA"]) EOB["EOB"]) ) 259324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | -> treeSpec 260324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 261324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 262324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 263324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruveratom: range ( (op='^'|op='!') -> ^($op range) | -> range ) 264324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | terminal 265324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | notSet ( (op='^'|op='!') -> ^($op notSet) | -> notSet ) 266324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | RULE_REF ( arg=ARG_ACTION )? ( (op='^'|op='!') )? 267324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> {$arg!=null&&op!=null}? ^($op RULE_REF $arg) 268324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> {$arg!=null}? ^(RULE_REF $arg) 269324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> {$op!=null}? ^($op RULE_REF) 270324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> RULE_REF 271324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 272324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 273324c4644fee44b9898524c09511bd33c3f12e2dfBen GruvernotSet 274324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '~' 275324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( notTerminal -> ^('~' notTerminal) 276324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | block -> ^('~' block) 277324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 278324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 279324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 280324c4644fee44b9898524c09511bd33c3f12e2dfBen GruvertreeSpec 281324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '^(' element ( element )+ ')' -> ^(TREE_BEGIN element+) 282324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 283324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 284324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** Matches ENBF blocks (and token sets via block rule) */ 285324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverebnf 286324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@init { 287324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Token firstToken = input.LT(1); 288324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 289324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@after { 290324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver $ebnf.tree.getToken().setLine(firstToken.getLine()); 291324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver $ebnf.tree.getToken().setCharPositionInLine(firstToken.getCharPositionInLine()); 292324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 293324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : block 294324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( op='?' -> ^(OPTIONAL[op] block) 295324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | op='*' -> ^(CLOSURE[op] block) 296324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | op='+' -> ^(POSITIVE_CLOSURE[op] block) 297324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '=>' // syntactic predicate 298324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> {gtype==COMBINED_GRAMMAR && 299324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Character.isUpperCase($rule::name.charAt(0))}? 300324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver // if lexer rule in combined, leave as pred for lexer 301324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ^(SYNPRED["=>"] block) 302324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver // in real antlr tool, text for SYN_SEMPRED is predname 303324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> SYN_SEMPRED 304324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | -> block 305324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 306324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 307324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 308324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrange! 309324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : c1=CHAR_LITERAL RANGE c2=CHAR_LITERAL -> ^(CHAR_RANGE[$c1,".."] $c1 $c2) 310324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 311324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 312324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverterminal 313324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : ( CHAR_LITERAL -> CHAR_LITERAL 314324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver // Args are only valid for lexer rules 315324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | TOKEN_REF 316324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( ARG_ACTION -> ^(TOKEN_REF ARG_ACTION) 317324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | -> TOKEN_REF 318324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 319324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | STRING_LITERAL -> STRING_LITERAL 320324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '.' -> '.' 321324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 322324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( '^' -> ^('^' $terminal) 323324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '!' -> ^('!' $terminal) 324324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver )? 325324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 326324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 327324c4644fee44b9898524c09511bd33c3f12e2dfBen GruvernotTerminal 328324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : CHAR_LITERAL 329324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | TOKEN_REF 330324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | STRING_LITERAL 331324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 332324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 333324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverebnfSuffix 334324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@init { 335324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Token op = input.LT(1); 336324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 337324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '?' -> OPTIONAL[op] 338324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '*' -> CLOSURE[op] 339324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '+' -> POSITIVE_CLOSURE[op] 340324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 341324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 342324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 343324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 344324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// R E W R I T E S Y N T A X 345324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 346324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite 347324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@init { 348324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Token firstToken = input.LT(1); 349324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 350324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : (rew+='->' preds+=SEMPRED predicated+=rewrite_alternative)* 351324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver rew2='->' last=rewrite_alternative 352324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^($rew $preds $predicated)* ^($rew2 $last) 353324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 354324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 355324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 356324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_alternative 357324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruveroptions {backtrack=true;} 358324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : rewrite_template 359324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | rewrite_tree_alternative 360324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | /* empty rewrite */ -> ^(ALT["ALT"] EPSILON["EPSILON"] EOA["EOA"]) 361324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 362324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 363324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_tree_block 364324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : lp='(' rewrite_tree_alternative ')' 365324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^(BLOCK[$lp,"BLOCK"] rewrite_tree_alternative EOB[$lp,"EOB"]) 366324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 367324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 368324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_tree_alternative 369324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : rewrite_tree_element+ -> ^(ALT["ALT"] rewrite_tree_element+ EOA["EOA"]) 370324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 371324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 372324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_tree_element 373324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : rewrite_tree_atom 374324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | rewrite_tree_atom ebnfSuffix 375324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^( ebnfSuffix ^(BLOCK["BLOCK"] ^(ALT["ALT"] rewrite_tree_atom EOA["EOA"]) EOB["EOB"])) 376324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | rewrite_tree 377324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( ebnfSuffix 378324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^(ebnfSuffix ^(BLOCK["BLOCK"] ^(ALT["ALT"] rewrite_tree EOA["EOA"]) EOB["EOB"])) 379324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | -> rewrite_tree 380324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 381324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | rewrite_tree_ebnf 382324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 383324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 384324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_tree_atom 385324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : CHAR_LITERAL 386324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | TOKEN_REF ARG_ACTION? -> ^(TOKEN_REF ARG_ACTION?) // for imaginary nodes 387324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | RULE_REF 388324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | STRING_LITERAL 389324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | d='$' id -> LABEL[$d,$id.text] // reference to a label in a rewrite rule 390324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ACTION 391324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 392324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 393324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_tree_ebnf 394324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@init { 395324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Token firstToken = input.LT(1); 396324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 397324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@after { 398324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver $rewrite_tree_ebnf.tree.getToken().setLine(firstToken.getLine()); 399324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver $rewrite_tree_ebnf.tree.getToken().setCharPositionInLine(firstToken.getCharPositionInLine()); 400324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 401324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : rewrite_tree_block ebnfSuffix -> ^(ebnfSuffix rewrite_tree_block) 402324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 403324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 404324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_tree 405324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '^(' rewrite_tree_atom rewrite_tree_element* ')' 406324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^(TREE_BEGIN rewrite_tree_atom rewrite_tree_element* ) 407324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 408324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 409324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** Build a tree for a template rewrite: 410324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ^(TEMPLATE (ID|ACTION) ^(ARGLIST ^(ARG ID ACTION) ...) ) 411324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver where ARGLIST is always there even if no args exist. 412324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ID can be "template" keyword. If first child is ACTION then it's 413324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver an indirect template ref 414324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 415324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> foo(a={...}, b={...}) 416324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ({string-e})(a={...}, b={...}) // e evaluates to template name 417324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> {%{$ID.text}} // create literal template from string (done in ActionTranslator) 418324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> {st-expr} // st-expr evaluates to ST 419324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 420324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_template 421324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : // -> template(a={...},...) "..." inline template 422324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver id lp='(' rewrite_template_args ')' 423324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( str=DOUBLE_QUOTE_STRING_LITERAL | str=DOUBLE_ANGLE_STRING_LITERAL ) 424324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^(TEMPLATE[$lp,"TEMPLATE"] id rewrite_template_args $str) 425324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 426324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | // -> foo(a={...}, ...) 427324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver rewrite_template_ref 428324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 429324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | // -> ({expr})(a={...}, ...) 430324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver rewrite_indirect_template_head 431324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 432324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | // -> {...} 433324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ACTION 434324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 435324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 436324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** -> foo(a={...}, ...) */ 437324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_template_ref 438324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : id lp='(' rewrite_template_args ')' 439324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^(TEMPLATE[$lp,"TEMPLATE"] id rewrite_template_args) 440324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 441324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 442324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** -> ({expr})(a={...}, ...) */ 443324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_indirect_template_head 444324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : lp='(' ACTION ')' '(' rewrite_template_args ')' 445324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^(TEMPLATE[$lp,"TEMPLATE"] ACTION rewrite_template_args) 446324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 447324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 448324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_template_args 449324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : rewrite_template_arg (',' rewrite_template_arg)* 450324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver -> ^(ARGLIST rewrite_template_arg+) 451324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | -> ARGLIST 452324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 453324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 454324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverrewrite_template_arg 455324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : id '=' ACTION -> ^(ARG[$id.start] id ACTION) 456324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 457324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 458324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverid : TOKEN_REF -> ID[$TOKEN_REF] 459324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | RULE_REF -> ID[$RULE_REF] 460324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 461324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 462324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// L E X I C A L R U L E S 463324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 464324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverSL_COMMENT 465324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '//' 466324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( ' $ANTLR ' SRC // src directive 467324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ~('\r'|'\n')* 468324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 469324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver '\r'? '\n' 470324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver {$channel=HIDDEN;} 471324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 472324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 473324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverML_COMMENT 474324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '/*' {if (input.LA(1)=='*') $type=DOC_COMMENT; else $channel=HIDDEN;} .* '*/' 475324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 476324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 477324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverCHAR_LITERAL 478324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '\'' LITERAL_CHAR '\'' 479324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 480324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 481324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverSTRING_LITERAL 482324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '\'' LITERAL_CHAR LITERAL_CHAR* '\'' 483324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 484324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 485324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverfragment 486324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverLITERAL_CHAR 487324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : ESC 488324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ~('\''|'\\') 489324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 490324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 491324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverDOUBLE_QUOTE_STRING_LITERAL 492324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '"' (ESC | ~('\\'|'"'))* '"' 493324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 494324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 495324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverDOUBLE_ANGLE_STRING_LITERAL 496324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '<<' .* '>>' 497324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 498324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 499324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverfragment 500324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverESC : '\\' 501324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( 'n' 502324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 'r' 503324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 't' 504324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 'b' 505324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 'f' 506324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '"' 507324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '\'' 508324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '\\' 509324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '>' 510324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 'u' XDIGIT XDIGIT XDIGIT XDIGIT 511324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | . // unknown, leave as it is 512324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ) 513324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 514324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 515324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverfragment 516324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverXDIGIT : 517324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver '0' .. '9' 518324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 'a' .. 'f' 519324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | 'A' .. 'F' 520324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 521324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 522324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverINT : '0'..'9'+ 523324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 524324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 525324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverARG_ACTION 526324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : NESTED_ARG_ACTION 527324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 528324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 529324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverfragment 530324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverNESTED_ARG_ACTION : 531324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver '[' 532324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( options {greedy=false; k=1;} 533324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : NESTED_ARG_ACTION 534324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ACTION_STRING_LITERAL 535324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ACTION_CHAR_LITERAL 536324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | . 537324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver )* 538324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ']' 539324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver {setText(getText().substring(1, getText().length()-1));} 540324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 541324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 542324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverACTION 543324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : NESTED_ACTION ( '?' {$type = SEMPRED;} )? 544324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 545324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 546324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverfragment 547324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverNESTED_ACTION : 548324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver '{' 549324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ( options {greedy=false; k=2;} 550324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : NESTED_ACTION 551324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | SL_COMMENT 552324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ML_COMMENT 553324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ACTION_STRING_LITERAL 554324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ACTION_CHAR_LITERAL 555324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | . 556324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver )* 557324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver '}' 558324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 559324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 560324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverfragment 561324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverACTION_CHAR_LITERAL 562324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '\'' (ACTION_ESC|~('\\'|'\'')) '\'' 563324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 564324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 565324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverfragment 566324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverACTION_STRING_LITERAL 567324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '"' (ACTION_ESC|~('\\'|'"'))* '"' 568324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 569324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 570324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverfragment 571324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverACTION_ESC 572324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : '\\\'' 573324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '\\' '"' // ANTLR doesn't like: '\\"' 574324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '\\' ~('\''|'"') 575324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 576324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 577324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverTOKEN_REF 578324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : 'A'..'Z' ('a'..'z'|'A'..'Z'|'_'|'0'..'9')* 579324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 580324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 581324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverRULE_REF 582324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : 'a'..'z' ('a'..'z'|'A'..'Z'|'_'|'0'..'9')* 583324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 584324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 585324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** Match the start of an options section. Don't allow normal 586324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * action processing on the {...} as it's not a action. 587324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 588324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverOPTIONS 589324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : 'options' WS_LOOP '{' 590324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 591324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 592324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverTOKENS 593324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : 'tokens' WS_LOOP '{' 594324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 595324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 596324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/** Reset the file and line information; useful when the grammar 597324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * has been generated so that errors are shown relative to the 598324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * original file like the old C preprocessor used to do. 599324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 600324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverfragment 601324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverSRC : 'src' ' ' file=ACTION_STRING_LITERAL ' ' line=INT 602324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 603324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 604324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverWS : ( ' ' 605324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '\t' 606324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | '\r'? '\n' 607324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver )+ 608324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver {$channel=HIDDEN;} 609324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 610324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 611324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverfragment 612324c4644fee44b9898524c09511bd33c3f12e2dfBen GruverWS_LOOP 613324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver : ( WS 614324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | SL_COMMENT 615324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver | ML_COMMENT 616324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver )* 617324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver ; 618324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 619324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 620