glcpp-lex.l

   1 %{
   2 /*
   3  * Copyright © 2010 Intel Corporation
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include <stdio.h>
  26 #include <string.h>
  27
  28 #include "glcpp.h"
  29 #include "glcpp-parse.h"
  30 %}
  31
  32 %option reentrant noyywrap
  33
  34 %x ST_DEFINE
  35 %x ST_DEFVAL
  36
  37 SPACE           [[:space:]]
  38 NONSPACE        [^[:space:]]
  39 NOTNEWLINE      [^\n]
  40 HSPACE          [ \t]
  41 HASH            ^{HSPACE}*#
  42 IDENTIFIER      [_a-zA-Z][_a-zA-Z0-9]*
  43 DEFVAL          {NONSPACE}{NOTNEWLINE}*
  44 %%
  45
  46 {HASH}define            { BEGIN ST_DEFINE; return DEFINE; }
  47
  48 <ST_DEFINE>{HSPACE}+
  49 <ST_DEFINE>{IDENTIFIER} { BEGIN ST_DEFVAL; yylval = strdup (yytext); return IDENTIFIER; }
  50
  51 <ST_DEFVAL>{SPACE}+
  52 <ST_DEFVAL>{DEFVAL}     { BEGIN INITIAL; yylval = strdup (yytext); return DEFVAL; }
  53
  54         /* Anything we don't specifically recognize is a stream of tokens */
  55 {NONSPACE}+             { yylval = strdup (yytext); return TOKEN; }
  56
  57 %%