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Diffstat (limited to 'buildtools/lib/parsers/autotools/autotools.ll')
| -rw-r--r-- | buildtools/lib/parsers/autotools/autotools.ll | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/buildtools/lib/parsers/autotools/autotools.ll b/buildtools/lib/parsers/autotools/autotools.ll new file mode 100644 index 00000000..ae646edb --- /dev/null +++ b/buildtools/lib/parsers/autotools/autotools.ll @@ -0,0 +1,136 @@ +%{ +/*************************************************************************** + * Copyright (C) 2005 by Alexander Dymo * + * adymo@kdevelop.org * + * * + * Copyright (c) 2005 by Matt Rogers * + * mattr@kde.org * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU Library General Public License as * + * published by the Free Software Foundation; either version 2 of the * + * License, or (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU Library General Public * + * License along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ + +#include <autotools_yacc.h> +#include <stdlib.h> + +/** +@file autotools.ll +Autotools Lexer + +There are 3 types of identifiers recognized by this lexer: +-id_simple: examples of such identifiers are qmake variables and scoped variables +at the left of the operator in assignments (like "SOURCES" in "SOURCES+=foo.cpp goo.cpp"); +-id_list: those are "value list identifiers" at the right side in assignments +(like "foo.cpp goo.cpp" in "SOURCES+=foo.cpp goo.cpp"); +-id_args: function arguments recognized as one identifier +(example: ""${QMAKE_FILE} is intended only for Windows!"" +in "!win32-*:!wince-*:error("${QMAKE_FILE} is intended only for Windows!")" statements). +. + +To recognize those identifiers two additional start conditions are used: list and funcargs. + +@note "Not" operator (!) is recognized as a part of an identifier. Linefeeds passed to +the parser as NEWLINE tokens to preserve file structure but whitespaces are stripped +so no indentation is preserved by this lexer (and parser). + +To debug this lexer, put the line below into the next flex file section. +%option debug +*/ +%} +%option noyywrap + +%x list +%x funcargs +%x conditional + +delim [ \t] +ws {delim}+ +letter [A-Za-z] +digit [0-9] +id_simple ({digit}|{letter}|\!|-|_|\*|\$|@)({letter}|{digit}|\||\!|-|_|\*|\$|\(|\.|\+|\-|\)|\/)* +id_list [^\n]*\\{ws}* +id_args [^\n]*\) +number {digit}+ +comment #.* +comment_cont {ws}*#.*\n +id_list_single [^\n]* +cont \\{ws}*\n +keywords (if|else|endif|include) +rule [\t]+[^\n]* + +%% + +<list,INITIAL>{ws} {} +<list,INITIAL>{cont} { BEGIN(list); return CONT; } +{keywords} { + yylval.value = yytext; + if ( yylval.value == "if" ) + return IF_KEYWORD; + + if ( yylval.value == "else" ) + return ELSE_KEYWORD; + + if ( yylval.value == "endif" ) + return ENDIF_KEYWORD; + + return KEYWORD; +} + + +{id_simple} { yylval.value = yytext; return (ID_SIMPLE); } + +<INITIAL>{rule} { + yylval.value = yytext; + return RULE; +} + +<list>{id_list} { + yylval.value = yytext; + yylval.value = yylval.value.mid(0, yylval.value.findRev("\\")); + unput('\\'); + BEGIN(INITIAL); + return (ID_LIST); + } + +<list>{comment_cont} { + yylval.value = yytext; + BEGIN(list); + return (LIST_COMMENT); + } + +<list>{id_list_single} { + yylval.value = yytext; + BEGIN(INITIAL); + return (ID_LIST_SINGLE); + } + +<funcargs>{id_args} { + yylval.value = yytext; + yylval.value = yylval.value.mid(0, yylval.value.length()-1); + unput(')'); + BEGIN(INITIAL); + return (ID_ARGS); + } + +"=" { BEGIN(list); yylval.value = yytext; return EQ; } +"+=" { BEGIN(list); yylval.value = yytext; return PLUSEQ; } +"{" { return LCURLY; } +"}" { return RCURLY; } +":" { BEGIN(list); yylval.value = yytext; return COLON; } +<list,INITIAL>"\n" { BEGIN(INITIAL); return NEWLINE; } +{comment} { yylval.value = yytext; return (COMMENT); } + +%% + |