| /* |
| * Mesa 3-D graphics library |
| * Version: 6.3 |
| * |
| * Copyright (C) 2005 Brian Paul All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| /** |
| * \file slang_version.syn |
| * slang #version directive syntax |
| * \author Michal Krol |
| */ |
| |
| .syntax version_directive; |
| |
| version_directive |
| version_directive_1 .and .loop version_directive_2; |
| version_directive_1 |
| prior_optional_spaces .and optional_version_directive .and .true .emit $; |
| version_directive_2 |
| prior_optional_spaces .and version_directive_body .and .true .emit $; |
| |
| optional_version_directive |
| version_directive_body .or .true .emit 10 .emit 1; |
| |
| version_directive_body |
| '#' .and optional_space .and "version" .and space .and version_number .and optional_space .and |
| new_line; |
| |
| version_number |
| version_number_110; |
| |
| version_number_110 |
| leading_zeroes .and "110" .emit 10 .emit 1; |
| |
| leading_zeroes |
| .loop zero; |
| |
| zero |
| '0'; |
| |
| space |
| single_space .and .loop single_space; |
| |
| optional_space |
| .loop single_space; |
| |
| single_space |
| ' ' .or '\t'; |
| |
| prior_optional_spaces |
| .loop prior_space; |
| |
| prior_space |
| c_style_comment_block .or cpp_style_comment_block .or space .or new_line; |
| |
| c_style_comment_block |
| '/' .and '*' .and c_style_comment_rest; |
| |
| c_style_comment_rest |
| .loop c_style_comment_char_no_star .and c_style_comment_rest_1; |
| c_style_comment_rest_1 |
| c_style_comment_end .or c_style_comment_rest_2; |
| c_style_comment_rest_2 |
| '*' .and c_style_comment_rest; |
| |
| c_style_comment_char_no_star |
| '\x2B'-'\xFF' .or '\x01'-'\x29'; |
| |
| c_style_comment_end |
| '*' .and '/'; |
| |
| cpp_style_comment_block |
| '/' .and '/' .and cpp_style_comment_block_1; |
| cpp_style_comment_block_1 |
| cpp_style_comment_block_2 .or cpp_style_comment_block_3; |
| cpp_style_comment_block_2 |
| .loop cpp_style_comment_char .and new_line; |
| cpp_style_comment_block_3 |
| .loop cpp_style_comment_char; |
| |
| cpp_style_comment_char |
| '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C'; |
| |
| new_line |
| cr_lf .or lf_cr .or '\n' .or '\r'; |
| |
| cr_lf |
| '\r' .and '\n'; |
| |
| lf_cr |
| '\n' .and '\r'; |
| |
| .string __string_filter; |
| |
| __string_filter |
| .loop __identifier_char; |
| |
| __identifier_char |
| 'a'-'z' .or 'A'-'Z' .or '_' .or '0'-'9'; |
| |