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author | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
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committer | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
commit | 114a878c64ce6f8223cfd22d76a20eb16d177e5e (patch) | |
tree | acaf47eb0fa12142d3896416a69e74cbf5a72242 /buildtools/lib/parsers/qmake/FlexLexer.h | |
download | tdevelop-114a878c64ce6f8223cfd22d76a20eb16d177e5e.tar.gz tdevelop-114a878c64ce6f8223cfd22d76a20eb16d177e5e.zip |
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdevelop@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'buildtools/lib/parsers/qmake/FlexLexer.h')
-rw-r--r-- | buildtools/lib/parsers/qmake/FlexLexer.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/buildtools/lib/parsers/qmake/FlexLexer.h b/buildtools/lib/parsers/qmake/FlexLexer.h new file mode 100644 index 00000000..1db844da --- /dev/null +++ b/buildtools/lib/parsers/qmake/FlexLexer.h @@ -0,0 +1,205 @@ + +// -*-C++-*- +// FlexLexer.h -- define interfaces for lexical analyzer classes generated +// by flex + +// Copyright (c) 1993 The Regents of the University of California. +// All rights reserved. +// +// This code is derived from software contributed to Berkeley by +// Kent Williams and Tom Epperly. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: + +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. + +// Neither the name of the University nor the names of its contributors +// may be used to endorse or promote products derived from this software +// without specific prior written permission. + +// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR +// IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED +// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +// PURPOSE. + +// This file defines FlexLexer, an abstract class which specifies the +// external interface provided to flex C++ lexer objects, and yyFlexLexer, +// which defines a particular lexer class. +// +// If you want to create multiple lexer classes, you use the -P flag +// to rename each yyFlexLexer to some other xxFlexLexer. You then +// include <FlexLexer.h> in your other sources once per lexer class: +// +// #undef yyFlexLexer +// #define yyFlexLexer xxFlexLexer +// #include <FlexLexer.h> +// +// #undef yyFlexLexer +// #define yyFlexLexer zzFlexLexer +// #include <FlexLexer.h> +// ... + +#ifndef __FLEX_LEXER_H +// Never included before - need to define base class. +#define __FLEX_LEXER_H + +#include <iostream> +# ifndef FLEX_STD +# define FLEX_STD std:: +# endif + +extern "C++" { + +struct yy_buffer_state; +typedef int yy_state_type; + +class FlexLexer { +public: + virtual ~FlexLexer() { } + + const char* YYText() const { return yytext; } + int YYLeng() const { return yyleng; } + + virtual void + yy_switch_to_buffer( struct yy_buffer_state* new_buffer ) = 0; + virtual struct yy_buffer_state* + yy_create_buffer( FLEX_STD istream* s, int size ) = 0; + virtual void yy_delete_buffer( struct yy_buffer_state* b ) = 0; + virtual void yyrestart( FLEX_STD istream* s ) = 0; + + virtual int yylex() = 0; + + // Call yylex with new input/output sources. + int yylex( FLEX_STD istream* new_in, FLEX_STD ostream* new_out = 0 ) + { + switch_streams( new_in, new_out ); + return yylex(); + } + + // Switch to new input/output streams. A nil stream pointer + // indicates "keep the current one". + virtual void switch_streams( FLEX_STD istream* new_in = 0, + FLEX_STD ostream* new_out = 0 ) = 0; + + int lineno() const { return yylineno; } + + int debug() const { return yy_flex_debug; } + void set_debug( int flag ) { yy_flex_debug = flag; } + +protected: + char* yytext; + int yyleng; + int yylineno; // only maintained if you use %option yylineno + int yy_flex_debug; // only has effect with -d or "%option debug" +}; + +} +#endif + +#if defined(yyFlexLexer) || ! defined(yyFlexLexerOnce) +// Either this is the first time through (yyFlexLexerOnce not defined), +// or this is a repeated include to define a different flavor of +// yyFlexLexer, as discussed in the flex man page. +#define yyFlexLexerOnce + +extern "C++" { + +class yyFlexLexer : public FlexLexer { +public: + // arg_yyin and arg_yyout default to the cin and cout, but we + // only make that assignment when initializing in yylex(). + yyFlexLexer( FLEX_STD istream* arg_yyin = 0, FLEX_STD ostream* arg_yyout = 0 ); + + virtual ~yyFlexLexer(); + + void yy_switch_to_buffer( struct yy_buffer_state* new_buffer ); + struct yy_buffer_state* yy_create_buffer( FLEX_STD istream* s, int size ); + void yy_delete_buffer( struct yy_buffer_state* b ); + void yyrestart( FLEX_STD istream* s ); + + void yypush_buffer_state( struct yy_buffer_state* new_buffer ); + void yypop_buffer_state(void); + + virtual int yylex(); + virtual void switch_streams( FLEX_STD istream* new_in, FLEX_STD ostream* new_out ); + +protected: + virtual int LexerInput( char* buf, int max_size ); + virtual void LexerOutput( const char* buf, int size ); + virtual void LexerError( const char* msg ); + + void yyunput( int c, char* buf_ptr ); + int yyinput(); + + void yy_load_buffer_state(); + void yy_init_buffer( struct yy_buffer_state* b, FLEX_STD istream* s ); + void yy_flush_buffer( struct yy_buffer_state* b ); + + int yy_start_stack_ptr; + int yy_start_stack_depth; + int* yy_start_stack; + + void yy_push_state( int new_state ); + void yy_pop_state(); + int yy_top_state(); + + yy_state_type yy_get_previous_state(); + yy_state_type yy_try_NUL_trans( yy_state_type current_state ); + int yy_get_next_buffer(); + + FLEX_STD istream* yyin; // input source for default LexerInput + FLEX_STD ostream* yyout; // output sink for default LexerOutput + + // yy_hold_char holds the character lost when yytext is formed. + char yy_hold_char; + + // Number of characters read into yy_ch_buf. + int yy_n_chars; + + // Points to current character in buffer. + char* yy_c_buf_p; + + int yy_init; // whether we need to initialize + int yy_start; // start state number + + // Flag which is used to allow yywrap()'s to do buffer switches + // instead of setting up a fresh yyin. A bit of a hack ... + int yy_did_buffer_switch_on_eof; + + + size_t yy_buffer_stack_top; /**< index of top of stack. */ + size_t yy_buffer_stack_max; /**< capacity of stack. */ + struct yy_buffer_state ** yy_buffer_stack; /**< Stack as an array. */ + void yyensure_buffer_stack(void); + + // The following are not always needed, but may be depending + // on use of certain flex features (like REJECT or yymore()). + + yy_state_type yy_last_accepting_state; + char* yy_last_accepting_cpos; + + yy_state_type* yy_state_buf; + yy_state_type* yy_state_ptr; + + char* yy_full_match; + int* yy_full_state; + int yy_full_lp; + + int yy_lp; + int yy_looking_for_trail_begin; + + int yy_more_flag; + int yy_more_len; + int yy_more_offset; + int yy_prev_more_offset; +}; + +} + +#endif |