print <<END; | |
/* | |
* Copyright (C) 2003 Lars Knoll (knoll\@kde.org) | |
* | |
* | |
* This library 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 library 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 | |
* Library General Public License for more details. | |
* | |
* You should have received a copy of the GNU Library General Public License | |
* along with this library; see the file COPYING.LIB. If not, write to | |
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
* Boston, MA 02110-1301, USA. | |
*/ | |
/* This file is mostly data generated by flex. Unfortunately flex | |
can't handle 16bit strings directly, so we just copy the part of | |
the code we need and modify it to our needs. | |
Most of the defines below are to make sure we can easily use the | |
flex generated code, using as little editing as possible. | |
The flex syntax to generate the lexer are more or less directly | |
copied from the CSS2.1 specs, with some fixes for comments and | |
the important symbol. | |
To regenerate, run flex on tokenizer.flex. After this, copy the | |
data tables and the YY_DECL method over to this file. Remove the | |
init code from YY_DECL and change the YY_END_OF_BUFFER to only call | |
yyterminate(). | |
*/ | |
// --------- begin generated code ------------------- | |
END | |
{ | |
print<<END | |
#include "CSSGrammar.h" | |
#define INITIAL 0 | |
#define mediaquery 1 | |
#define forkeyword 2 | |
/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */ | |
#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L | |
#include <inttypes.h> | |
typedef int8_t flex_int8_t; | |
typedef uint8_t flex_uint8_t; | |
typedef int16_t flex_int16_t; | |
typedef uint16_t flex_uint16_t; | |
typedef int32_t flex_int32_t; | |
typedef uint32_t flex_uint32_t; | |
#else | |
typedef signed char flex_int8_t; | |
typedef short int flex_int16_t; | |
typedef int flex_int32_t; | |
typedef unsigned char flex_uint8_t; | |
typedef unsigned short int flex_uint16_t; | |
typedef unsigned int flex_uint32_t; | |
#endif /* ! C99 */ | |
END | |
} | |
# Skip over the flex output prologue: the above typedefs, forward declarations, etc. | |
# Stop when we get to the declarations of tables. | |
while (<>) { | |
last if /YY_NUM_RULES/; | |
} | |
# Dump the generated tables. /yy_last_accepting/ matches the first declaration after the tables. | |
print; | |
while (<>) { | |
last if /yy_last_accepting/; | |
print; | |
} | |
# Skip down the the declaration of yytext; the body of the flex output begins after it. | |
while (<>) { | |
last if /yytext/; | |
} | |
# Dump the definitions of states (INITIAL, media query, tokenizer state support). | |
while (<>) { | |
last if not (/define/ || /line/) ; | |
print; | |
} | |
# Skip to main scanner function. | |
while (<>) { | |
last if /^YY_DECL/; | |
} | |
# Dump main scanner declarations, substituting in our 16-bit character type. | |
# Declarations end with the declaration matching /yy_act/. | |
print; | |
while (<>) { | |
s/char/UChar/; | |
print; | |
last if /yy_act/; | |
} | |
# Skip past initialization code, down to main loop. | |
while (<>) { | |
last if /while \( 1 \)/; | |
} | |
# Dump the main loop, skipping over labels we don't use. | |
# Stop before dumping the end-of-buffer handling, because we output our own custom end-of-buffer handling. | |
print; | |
while (<>) { | |
next if /^yy_match:/; | |
next if /^do_action:/; | |
last if /YY_END_OF_BUFFER/; | |
if (/^case YY_STATE_EOF\(INITIAL\):/) { | |
print "case YY_END_OF_BUFFER:\n"; | |
# flex outputs a ton of logic related to end-of-buffer handling; we just want to fall through to | |
# the yyterminate() found in other EOF states. But we need to be careful to back up to behind | |
# the terminating double-NUL so that subsequent calls to flex will have the pointers in order, | |
# so this logic is a reduction of the normal flex-generated YY_END_OF_BUFFER code. | |
print "\tyy_c_buf_p = yy_cp - 1;\n"; | |
print "\tyy_cp = yy_c_buf_p;\n"; | |
} | |
print; | |
} | |
# Skip over the end-of-buffer handling; dump the rest of the function. | |
while (<>) { | |
last if /default:/; | |
} | |
print; | |
while (<>) { | |
print; | |
last if /end of yylex/; | |
} | |
# We don't want the remainder of flex's output. | |
# However, flex may choke with "flex: error writing output file <stdout>" | |
# if its stdout is unexpectedly closed on it. | |
# Consume the remaining output. | |
while (<>) { | |
} |