%{
-#include "Cycript.tab.h"
+#include "Cycript.tab.hh"
+typedef cy::parser::token tk;
+
+#define YY_EXTRA_TYPE CYDriver *
+#define YYLTYPE cy::location
+
+#define T yylval->newline_ = yyextra->state_ == CYNewLine;
+#define C T yyextra->state_ = CYClear;
+#define R T yyextra->state_ = CYRestricted;
+#define N if (yyextra->state_ != CYNewLine) { bool restricted(yyextra->state_ == CYRestricted); if (restricted) { yyextra->state_ = CYClear; return tk::NewLine; } else yyextra->state_ = CYNewLine; }
+
+#define YY_INPUT(data, value, size) { \
+ if (yyextra->size_ == 0) \
+ value = YY_NULL; \
+ else { \
+ size_t copy(std::min(size, yyextra->size_)); \
+ memcpy(data, yyextra->data_, copy); \
+ yyextra->data_ += copy; \
+ yyextra->size_ -= copy; \
+ value = copy; \
+ } \
+}
+
%}
%option prefix="cy"
%option yylineno
%option nounput
%option interactive
+%option reentrant
-delim [ \t]
-whitesp {delim}+
-digit [0-9]
-number [-]?{digit}*[.]?{digit}+
+Exponent [eE][+-]?[0-9]+
+Escape \\['"\\bfnrtv]|\\0|\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}
%%
-"&" { return CYTokenAmpersand; }
-"&&" { return CYTokenAmpersandAmpersand; }
-"&=" { return CYTokenAmpersandEqual; }
-"^" { return CYTokenCarrot; }
-"^=" { return CYTokenCarrotEqual; }
-"=" { return CYTokenEqual; }
-"==" { return CYTokenEqualEqual; }
-"===" { return CYTokenEqualEqualEqual; }
-"!" { return CYTokenExclamation; }
-"!=" { return CYTokenExclamationEqual; }
-"!==" { return CYTokenExclamationEqualEqual; }
-"-" { return CYTokenHyphen; }
-"-=" { return CYTokenHyphenEqual; }
-"--" { return CYTokenHyphenHyphen; }
-"->" { return CYTokenHyphenRight; }
-"<" { return CYTokenLeft; }
-"<=" { return CYTokenLeftEqual; }
-"<<" { return CYTokenLeftLeft; }
-"<<=" { return CYTokenLeftLeftEqual; }
-"%" { return CYTokenPercent; }
-"%=" { return CYTokenPercentEqual; }
-"." { return CYTokenPeriod; }
-"|" { return CYTokenPipe; }
-"|=" { return CYTokenPipeEqual; }
-"||" { return CYTokenPipePipe; }
-"+" { return CYTokenPlus; }
-"+=" { return CYTokenPlusEqual; }
-"++" { return CYTokenPlusPlus; }
-">" { return CYTokenRight; }
-">=" { return CYTokenRightEqual; }
-">>" { return CYTokenRightRight; }
-">>=" { return CYTokenRightRightEqual; }
-">>>" { return CYTokenRightRightRight; }
-">>>=" { return CYTokenRightRightRightEqual; }
-"/" { return CYTokenSlash; }
-"/=" { return CYTokenSlashEqual; }
-"*" { return CYTokenStar; }
-"*=" { return CYTokenStarEqual; }
-"~" { return CYTokenTilde; }
-
-"break" { return CYTokenBreak; }
-"case" { return CYTokenCase; }
-"catch" { return CYTokenCatch; }
-"continue" { return CYTokenContinue; }
-"default" { return CYTokenDefault; }
-"delete" { return CYTokenDelete; }
-"do" { return CYTokenDo; }
-"else" { return CYTokenElse; }
-"false" { return CYTokenFalse; }
-"finally" { return CYTokenFinally; }
-"for" { return CYTokenFor; }
-"function" { return CYTokenFunction; }
-"if" { return CYTokenIf; }
-"in" { return CYTokenIn; }
-"instanceof" { return CYTokenInstanceOf; }
-"new" { return CYTokenNew; }
-"null" { return CYTokenNull; }
-"return" { return CYTokenReturn; }
-"switch" { return CYTokenSwitch; }
-"this" { return CYTokenThis; }
-"throw" { return CYTokenThrow; }
-"true" { return CYTokenTrue; }
-"try" { return CYTokenTry; }
-"typeof" { return CYTokenTypeOf; }
-"var" { return CYTokenVar; }
-"void" { return CYTokenVoid; }
-"while" { return CYTokenWhile; }
-"with" { return CYTokenWith; }
+\/\/[^\n]* ;
+\/\*(\n|[^\*]|\*[^/])\*\/ if (memchr(yytext, '\n', yyleng) != NULL) N // XXX: supposedly I will be screwed on very very long multi-line comments and need to replace this with a manual lexer. http://websrv.cs.fsu.edu/~engelen/courses/COP5621/Pr2.pdf ; XXX: this rule doesn't work anyway, fucking A :(
+
+"&" C return tk::Ampersand;
+"&&" C return tk::AmpersandAmpersand;
+"&=" C return tk::AmpersandEqual;
+"^" C return tk::Carrot;
+"^=" C return tk::CarrotEqual;
+"=" C return tk::Equal;
+"==" C return tk::EqualEqual;
+"===" C return tk::EqualEqualEqual;
+"!" C return tk::Exclamation;
+"!=" C return tk::ExclamationEqual;
+"!==" C return tk::ExclamationEqualEqual;
+"-" C return tk::Hyphen;
+"-=" C return tk::HyphenEqual;
+"--" C return yylval->newline_ ? tk::HyphenHyphen_ : tk::HyphenHyphen;
+"->" C return tk::HyphenRight;
+"<" C return tk::Left;
+"<=" C return tk::LeftEqual;
+"<<" C return tk::LeftLeft;
+"<<=" C return tk::LeftLeftEqual;
+"%" C return tk::Percent;
+"%=" C return tk::PercentEqual;
+"." C return tk::Period;
+"|" C return tk::Pipe;
+"|=" C return tk::PipeEqual;
+"||" C return tk::PipePipe;
+"+" C return tk::Plus;
+"+=" C return tk::PlusEqual;
+"++" C return yylval->newline_ ? tk::PlusPlus_ : tk::PlusPlus;
+">" C return tk::Right;
+">=" C return tk::RightEqual;
+">>" C return tk::RightRight;
+">>=" C return tk::RightRightEqual;
+">>>" C return tk::RightRightRight;
+">>>=" C return tk::RightRightRightEqual;
+"/" C return tk::Slash;
+"/=" C return tk::SlashEqual;
+"*" C return tk::Star;
+"*=" C return tk::StarEqual;
+"~" C return tk::Tilde;
+
+":" C return tk::Colon;
+"," C return tk::Comma;
+"?" C return tk::Question;
+";" C return tk::SemiColon;
+
+"(" C return tk::OpenParen;
+")" C return tk::CloseParen;
+
+"{" C return tk::OpenBrace;
+"}" C return tk::CloseBrace;
+
+"[" C return tk::OpenBracket;
+"]" C return tk::CloseBracket;
+
+"@selector" C return tk::AtSelector;
+
+"break" R yylval->word_ = new CYWord("break"); return tk::Break;
+"case" C yylval->word_ = new CYWord("case"); return tk::Case;
+"catch" C yylval->word_ = new CYWord("catch"); return tk::Catch;
+"continue" R yylval->word_ = new CYWord("continue"); return tk::Continue;
+"default" C yylval->word_ = new CYWord("default"); return tk::Default;
+"delete" C yylval->word_ = new CYWord("delete"); return tk::Delete;
+"do" C yylval->word_ = new CYWord("do"); return tk::Do;
+"else" C yylval->word_ = new CYWord("else"); return tk::Else;
+"false" C yylval->false_ = new CYFalse(); return tk::False;
+"finally" C yylval->word_ = new CYWord("finally"); return tk::Finally;
+"for" C yylval->word_ = new CYWord("for"); return tk::For;
+"function" C yylval->word_ = new CYWord("function"); return tk::Function;
+"if" C yylval->word_ = new CYWord("if"); return tk::If;
+"in" C yylval->word_ = new CYWord("in"); return tk::In;
+"instanceof" C yylval->word_ = new CYWord("instanceof"); return tk::InstanceOf;
+"new" C yylval->word_ = new CYWord("new"); return tk::New;
+"null" C yylval->null_ = new CYNull(); return tk::Null;
+"return" R yylval->word_ = new CYWord("return"); return tk::Return;
+"switch" C yylval->word_ = new CYWord("switch"); return tk::Switch;
+"this" C yylval->this_ = new CYThis(); return tk::This;
+"throw" R yylval->word_ = new CYWord("throw"); return tk::Throw;
+"true" C yylval->true_ = new CYTrue(); return tk::True;
+"try" C yylval->word_ = new CYWord("try"); return tk::Try;
+"typeof" C yylval->word_ = new CYWord("typeof"); return tk::TypeOf;
+"var" C yylval->word_ = new CYWord("var"); return tk::Var;
+"void" C yylval->word_ = new CYWord("void"); return tk::Void;
+"while" C yylval->word_ = new CYWord("while"); return tk::While;
+"with" C yylval->word_ = new CYWord("with"); return tk::With;
+
+[a-zA-Z$_][a-zA-Z$_0-9]* yylval->identifier_ = new CYIdentifier(apr_pstrmemdup(yyextra->pool_, yytext, yyleng)); C return tk::Identifier;
+
+(\.[0-9]+|(0|[1-9][0-9]*)(\.[0-9]*)?){Exponent}? yylval->number_ = new CYNumber(strtod(yytext, NULL)); C return tk::NumericLiteral;
+
+0[xX][0-9a-fA-F]+ C yylval->number_ = new CYNumber(strtoull(yytext + 2, NULL, 16)); return tk::NumericLiteral;
+
+0[bB][0-1]+ C yylval->number_ = new CYNumber(strtoull(yytext + 2, NULL, 2)); return tk::NumericLiteral;
+
+\"([^"\\\n]|{Escape})*\" C return tk::StringLiteral;
+'([^'\\\n]|{Escape})*' C return tk::StringLiteral;
+
+\n N
+[ \t] ;
+
+%%
+
+void CYDriver::ScannerInit() {
+ cylex_init(&scanner_);
+ cyset_extra(this, scanner_);
+}
+
+void CYDriver::ScannerDestroy() {
+ cylex_destroy(scanner_);
+}
projects / cycript.git / blobdiff