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Diffstat (limited to 'buildtools/lib/parsers/qmake/qmake.ll')
| -rw-r--r-- | buildtools/lib/parsers/qmake/qmake.ll | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/buildtools/lib/parsers/qmake/qmake.ll b/buildtools/lib/parsers/qmake/qmake.ll new file mode 100644 index 00000000..715d60b3 --- /dev/null +++ b/buildtools/lib/parsers/qmake/qmake.ll @@ -0,0 +1,237 @@ +%{ +/*************************************************************************** + * Copyright (C) 2005 by Alexander Dymo * + * adymo@kdevelop.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 <stdlib.h> + +#define DONT_INCLUDE_FLEXLEXER + +#include "qmake_lex.h" + +/** +@file qmake.ll +QMake 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 +%option yylineno +%option c++ +%option yyclass="QMake::Lexer" + +%x vallist +%x funcargs + +delim [ \t] +ws {delim}+ +newline (\n|\r|\r\n) +quote "\"" +var_value [^#\r\n\t ]*[^\r\n\t \\] +quoted_var_value {quote}({var_value}|[\t ])({var_value}|[\t ])*{quote} +letter [A-Za-z] +digit [0-9] +id_simple ({digit}|{letter}|\!|-|_|\*|\$)({letter}|{digit}|\||\!|-|_|\*|\$|\.|\+)* +id_args [^\r\n]*\) +number {digit}+ +comment #[^\r\n]*{newline} +comment_cont (\\{ws}*#[^\r\n]*{newline}|#[^\r\n]*\\{newline}) +cont \\{ws}*{newline} + +%% +<vallist><<EOF>> { + BEGIN(INITIAL); + return Parser::token::token::ENDOFFILE; +} +<INITIAL>{ws} {} + +<vallist>{ws} { + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::LIST_WS; +} + +<vallist,INITIAL>{cont} { + BEGIN(vallist); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::CONT; +} + +<vallist,INITIAL>{comment_cont} { + BEGIN(vallist); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::COMMENT_CONT; +} + +{id_simple} { + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return (Parser::token::token::ID_SIMPLE); +} + +<funcargs>{id_args} { + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + mylval->value = mylval->value.mid(0, mylval->value.length()-1); + unput(')'); + BEGIN(INITIAL); + return (Parser::token::token::ID_ARGS); + } + +<vallist>{var_value} { + BEGIN(vallist); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::VARIABLE_VALUE; +} + +<vallist>{quoted_var_value} { + BEGIN(vallist); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::QUOTED_VARIABLE_VALUE; +} + +"=" { + BEGIN(vallist); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::EQ; +} + +"+=" { + BEGIN(vallist); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::PLUSEQ; +} + +"-=" { + BEGIN(vallist); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::MINUSEQ; +} + +"*=" { + BEGIN(vallist); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::STAREQ; +} + +"~=" { + BEGIN(vallist); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::TILDEEQ; +} + +"{" { + return Parser::token::token::LCURLY; +} + +":"{delim}*"{" { + return Parser::token::token::LCURLY; +} + +"}" { + return Parser::token::token::RCURLY; +} + +"(" { + BEGIN(funcargs); + return Parser::token::token::LBRACE; +} + +<funcargs,INITIAL>")" { + BEGIN(INITIAL); + return Parser::token::token::RBRACE; +} + +":" { + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return Parser::token::token::COLON; +} + + +<vallist>{ws}{newline} { + BEGIN(INITIAL); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + setLineEndingFromString( mylval->value ); + return Parser::token::token::NEWLINE; +} + +<vallist,INITIAL>{newline} { + BEGIN(INITIAL); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + setLineEndingFromString( mylval->value ); + return Parser::token::token::NEWLINE; +} + +<vallist,INITIAL>{comment} { + BEGIN(INITIAL); + mylval->value = QString::fromLocal8Bit( YYText(), YYLeng() ); + return (Parser::token::token::COMMENT); +} + +%% +namespace QMake +{ + Lexer::Lexer( std::istream* argin, std::ostream* argout ) + : yyFlexLexer(argin, argout), mylval(0), m_lineEnding(None) + { + } + + int Lexer::yylex( QMake::Parser::semantic_type* yylval ) + { + mylval = yylval; + return yylex(); + } + + void Lexer::setLineEndingFromString( const QString& str ) + { + if( str.endsWith("\r\n") && m_lineEnding == None ) + m_lineEnding = Windows; + else if ( str.endsWith("\r") && m_lineEnding == None ) + m_lineEnding = MacOS; + else if ( m_lineEnding == None ) + m_lineEnding = Unix; + } + + Lexer::LineEnding Lexer::lineending() + { + return m_lineEnding; + } +} + +int QMakelex( QMake::Parser::semantic_type* yylval, QMake::Lexer* lexer) +{ + return lexer->yylex( yylval ); +} + |