src/mesa/shader/slang/library/slang_pp_version.syn

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.6
   4  *
   5  * Copyright (C) 2005-2006  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /**
  26  * \file slang_pp_version.syn
  27  * slang #version directive syntax
  28  * \author Michal Krol
  29  */
  30
  31 .syntax version_directive;
  32
  33 version_directive
  34         version_directive_1;
  35 version_directive_1
  36         prior_optional_spaces .and optional_version_directive .and .true .emit $;
  37
  38 optional_version_directive
  39         version_directive_body .or .true .emit 10 .emit 1;
  40
  41 version_directive_body
  42         '#' .and optional_space .and "version" .and space .and version_number .and optional_space .and
  43         new_line;
  44
  45 version_number
  46         version_number_100 .or version_number_110 .or version_number_120;
  47
  48 version_number_100
  49         leading_zeroes .and "100" .emit 0 .emit 1;
  50
  51 version_number_110
  52         leading_zeroes .and "110" .emit 10 .emit 1;
  53
  54 version_number_120
  55         leading_zeroes .and "120" .emit 20 .emit 1;
  56
  57 leading_zeroes
  58         .loop zero;
  59
  60 zero
  61         '0';
  62
  63 space
  64     single_space .and .loop single_space;
  65
  66 optional_space
  67     .loop single_space;
  68
  69 single_space
  70     ' ' .or '\t';
  71
  72 prior_optional_spaces
  73         .loop prior_space;
  74
  75 prior_space
  76         c_style_comment_block .or cpp_style_comment_block .or space .or new_line;
  77
  78 c_style_comment_block
  79     '/' .and '*' .and c_style_comment_rest;
  80
  81 c_style_comment_rest
  82     .loop c_style_comment_char_no_star .and c_style_comment_rest_1;
  83 c_style_comment_rest_1
  84     c_style_comment_end .or c_style_comment_rest_2;
  85 c_style_comment_rest_2
  86     '*' .and c_style_comment_rest;
  87
  88 c_style_comment_char_no_star
  89     '\x2B'-'\xFF' .or '\x01'-'\x29';
  90
  91 c_style_comment_end
  92     '*' .and '/';
  93
  94 cpp_style_comment_block
  95     '/' .and '/' .and cpp_style_comment_block_1;
  96 cpp_style_comment_block_1
  97     cpp_style_comment_block_2 .or cpp_style_comment_block_3;
  98 cpp_style_comment_block_2
  99     .loop cpp_style_comment_char .and new_line;
 100 cpp_style_comment_block_3
 101     .loop cpp_style_comment_char;
 102
 103 cpp_style_comment_char
 104     '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C';
 105
 106 new_line
 107     cr_lf .or lf_cr .or '\n' .or '\r';
 108
 109 cr_lf
 110     '\r' .and '\n';
 111
 112 lf_cr
 113         '\n' .and '\r';
 114
 115 .string __string_filter;
 116
 117 __string_filter
 118     .loop __identifier_char;
 119
 120 __identifier_char
 121     'a'-'z' .or 'A'-'Z' .or '_' .or '0'-'9';
 122