From a0c4815433ccd57322f4f7703ca35e9ccfa59250 Mon Sep 17 00:00:00 2001 From: marha Date: Thu, 8 Oct 2009 13:15:52 +0000 Subject: Added MesaLib-7.6 --- .../shader/slang/library/slang_pp_directives.syn | 405 +++++++++++++++++++++ 1 file changed, 405 insertions(+) create mode 100644 mesalib/src/mesa/shader/slang/library/slang_pp_directives.syn (limited to 'mesalib/src/mesa/shader/slang/library/slang_pp_directives.syn') diff --git a/mesalib/src/mesa/shader/slang/library/slang_pp_directives.syn b/mesalib/src/mesa/shader/slang/library/slang_pp_directives.syn new file mode 100644 index 000000000..b51d168cc --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_pp_directives.syn @@ -0,0 +1,405 @@ +/* + * Mesa 3-D graphics library + * Version: 6.6 + * + * Copyright (C) 2006 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_pp_directives.syn + * slang preprocessor directives parser + * \author Michal Krol + */ + +.syntax source; + +/* + * This syntax script preprocesses a GLSL shader. + * It is assumed, that the #version directive has been parsed. Separate pass for parsing + * version gives better control on behavior depending on the version number given. + * + * The output is a source string with comments and directives removed. White spaces and comments + * are replaced with on or more spaces. All new-lines are preserved and converted to Linux format. + * Directives are escaped with a null character. The end of the source string is marked by + * two consecutive null characters. The consumer is responsible for executing the escaped + * directives, removing dead portions of code and expanding macros. + */ + +.emtcode ESCAPE_TOKEN 0 + +/* + * The TOKEN_* symbols follow the ESCAPE_TOKEN. + * + * NOTE: + * There is no TOKEN_IFDEF and neither is TOKEN_IFNDEF. They are handled with TOKEN_IF and + * operator defined. + * The "#ifdef SYMBOL" is replaced with "#if defined SYMBOL" + * The "#ifndef SYMBOL" is replaced with "#if !defined SYMBOL" + */ +.emtcode TOKEN_END 0 +.emtcode TOKEN_DEFINE 1 +.emtcode TOKEN_UNDEF 2 +.emtcode TOKEN_IF 3 +.emtcode TOKEN_ELSE 4 +.emtcode TOKEN_ELIF 5 +.emtcode TOKEN_ENDIF 6 +.emtcode TOKEN_ERROR 7 +.emtcode TOKEN_PRAGMA 8 +.emtcode TOKEN_EXTENSION 9 +.emtcode TOKEN_LINE 10 + +/* + * The PARAM_* symbols follow the TOKEN_DEFINE. + */ +.emtcode PARAM_END 0 +.emtcode PARAM_PARAMETER 1 + +/* + * The BEHAVIOR_* symbols follow the TOKEN_EXTENSION. + */ +.emtcode BEHAVIOR_REQUIRE 1 +.emtcode BEHAVIOR_ENABLE 2 +.emtcode BEHAVIOR_WARN 3 +.emtcode BEHAVIOR_DISABLE 4 + +/* + * The PRAGMA_* symbols follow TOKEN_PRAGMA + */ +.emtcode PRAGMA_NO_PARAM 0 +.emtcode PRAGMA_PARAM 1 + +source + optional_directive .and .loop source_element .and '\0' .emit ESCAPE_TOKEN .emit TOKEN_END; + +source_element + c_style_comment_block .or cpp_style_comment_block .or new_line_directive .or source_token; + +c_style_comment_block + '/' .and '*' .and c_style_comment_rest .and .true .emit ' '; + +c_style_comment_rest + .loop c_style_comment_body .and c_style_comment_end; + +c_style_comment_body + c_style_comment_char_nostar .or c_style_comment_char_star_noslashstar; + +c_style_comment_char_nostar + new_line .or '\x2B'-'\xFF' .or '\x01'-'\x29'; + +c_style_comment_char_star_noslashstar + '*' .and c_style_comment_char_star_noslashstar_1; +c_style_comment_char_star_noslashstar_1 + c_style_comment_char_noslashstar .or c_style_comment_char_star_noslashstar; + +c_style_comment_char_noslashstar + new_line .or '\x30'-'\xFF' .or '\x01'-'\x29' .or '\x2B'-'\x2E'; + +c_style_comment_end + '*' .and .loop c_style_comment_char_star .and '/'; + +c_style_comment_char_star + '*'; + +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_directive; +cpp_style_comment_block_3 + .loop cpp_style_comment_char; + +cpp_style_comment_char + '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C'; + +new_line_directive + new_line .and optional_directive; + +new_line + generic_new_line .emit '\n'; + +generic_new_line + carriage_return_line_feed .or line_feed_carriage_return .or '\n' .or '\r'; + +carriage_return_line_feed + '\r' .and '\n'; + +line_feed_carriage_return + '\n' .and '\r'; + +optional_directive + directive .emit ESCAPE_TOKEN .or .true; + +directive + dir_define .emit TOKEN_DEFINE .or + dir_undef .emit TOKEN_UNDEF .or + dir_if .emit TOKEN_IF .or + dir_ifdef .emit TOKEN_IF .emit 'd' .emit 'e' .emit 'f' .emit 'i' .emit 'n' .emit 'e' .emit 'd' + .emit ' ' .or + dir_ifndef .emit TOKEN_IF .emit '!' .emit 'd' .emit 'e' .emit 'f' .emit 'i' .emit 'n' .emit 'e' + .emit 'd' .emit ' ' .or + dir_else .emit TOKEN_ELSE .or + dir_elif .emit TOKEN_ELIF .or + dir_endif .emit TOKEN_ENDIF .or + dir_ext .emit TOKEN_EXTENSION .or + dir_pragma .emit TOKEN_PRAGMA .or + dir_line .emit TOKEN_LINE; + +dir_define + optional_space .and '#' .and optional_space .and "define" .and symbol .and opt_parameters .and + definition; + +dir_undef + optional_space .and '#' .and optional_space .and "undef" .and symbol; + +dir_if + optional_space .and '#' .and optional_space .and "if" .and expression; + +dir_ifdef + optional_space .and '#' .and optional_space .and "ifdef" .and symbol; + +dir_ifndef + optional_space .and '#' .and optional_space .and "ifndef" .and symbol; + +dir_else + optional_space .and '#' .and optional_space .and "else"; + +dir_elif + optional_space .and '#' .and optional_space .and "elif" .and expression; + +dir_endif + optional_space .and '#' .and optional_space .and "endif"; + +dir_ext + optional_space .and '#' .and optional_space .and "extension" .and space .and extension_name .and + optional_space .and ':' .and optional_space .and extension_behavior; + +dir_line + optional_space .and '#' .and optional_space .and "line" .and expression; + +dir_pragma + optional_space .and '#' .and optional_space .and "pragma" .and symbol .and opt_pragma_param; + + +opt_pragma_param + pragma_param .or .true .emit PRAGMA_NO_PARAM; + +pragma_param + optional_space .and '(' .emit PRAGMA_PARAM .and optional_space .and symbol_no_space .and optional_space .and ')'; + +symbol_no_space + symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\0'; + +symbol + space .and symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\0'; + +opt_parameters + parameters .or .true .emit PARAM_END; + +parameters + '(' .and parameters_1 .and optional_space .and ')' .emit PARAM_END; +parameters_1 + parameters_2 .or .true; +parameters_2 + parameter .emit PARAM_PARAMETER .and .loop parameters_3; +parameters_3 + optional_space .and ',' .and parameter .emit PARAM_PARAMETER; + +parameter + optional_space .and symbol_character .emit * .and .loop symbol_character2 .emit * .and + .true .emit '\0'; + +definition + .loop definition_character .emit * .and .true .emit '\0'; + +definition_character + '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C'; + +expression + expression_element .and .loop expression_element .and .true .emit '\0'; + +expression_element + expression_character .emit *; + +expression_character + '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C'; + +extension_name + symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\0'; + +extension_behavior + "require" .emit BEHAVIOR_REQUIRE .or + "enable" .emit BEHAVIOR_ENABLE .or + "warn" .emit BEHAVIOR_WARN .or + "disable" .emit BEHAVIOR_DISABLE; + +optional_space + .loop single_space; + +space + single_space .and .loop single_space; + +single_space + ' ' .or '\t'; + +source_token + space .emit ' ' .or complex_token .or source_token_1; +source_token_1 + simple_token .emit ' ' .and .true .emit ' '; + +/* + * All possible tokens. + */ + +complex_token + identifier .or number; + +simple_token + increment .or decrement .or lequal .or gequal .or equal .or nequal .or and .or xor .or or .or + addto .or subtractfrom .or multiplyto .or divideto .or other; + +identifier + identifier_char1 .emit * .and .loop identifier_char2 .emit *; +identifier_char1 + 'a'-'z' .or 'A'-'Z' .or '_'; +identifier_char2 + 'a'-'z' .or 'A'-'Z' .or '0'-'9' .or '_'; + +number + float .or integer; + +digit_oct + '0'-'7'; + +digit_dec + '0'-'9'; + +digit_hex + '0'-'9' .or 'A'-'F' .or 'a'-'f'; + +float + float_1 .or float_2; +float_1 + float_fractional_constant .and float_optional_exponent_part; +float_2 + float_digit_sequence .and float_exponent_part; + +float_fractional_constant + float_fractional_constant_1 .or float_fractional_constant_2 .or float_fractional_constant_3; +float_fractional_constant_1 + float_digit_sequence .and '.' .emit '.' .and float_digit_sequence; +float_fractional_constant_2 + float_digit_sequence .and '.' .emit '.'; +float_fractional_constant_3 + '.' .emit '.' .and float_digit_sequence; + +float_optional_exponent_part + float_exponent_part .or .true; + +float_digit_sequence + digit_dec .emit * .and .loop digit_dec .emit *; + +float_exponent_part + float_exponent_part_1 .or float_exponent_part_2; +float_exponent_part_1 + 'e' .emit 'e' .and float_optional_sign .and float_digit_sequence; +float_exponent_part_2 + 'E' .emit 'E' .and float_optional_sign .and float_digit_sequence; + +float_optional_sign + '+' .emit '+' .or '-' .emit '-' .or .true; + +integer + integer_hex .or integer_oct .or integer_dec; + +integer_hex + '0' .emit '0' .and integer_hex_1 .emit * .and digit_hex .emit * .and + .loop digit_hex .emit *; +integer_hex_1 + 'x' .or 'X'; + +integer_oct + '0' .emit '0' .and .loop digit_oct .emit *; + +integer_dec + digit_dec .emit * .and .loop digit_dec .emit *; + +increment + '+' .emit * .and '+' .emit *; + +decrement + '-' .emit * .and '-' .emit *; + +lequal + '<' .emit * .and '=' .emit *; + +gequal + '>' .emit * .and '=' .emit *; + +equal + '=' .emit * .and '=' .emit *; + +nequal + '!' .emit * .and '=' .emit *; + +and + '&' .emit * .and '&' .emit *; + +xor + '^' .emit * .and '^' .emit *; + +or + '|' .emit * .and '|' .emit *; + +addto + '+' .emit * .and '=' .emit *; + +subtractfrom + '-' .emit * .and '=' .emit *; + +multiplyto + '*' .emit * .and '=' .emit *; + +divideto + '/' .emit * .and '=' .emit *; + +/* + * All characters except '\0' and '#'. + */ +other + '\x24'-'\xFF' .emit * .or '\x01'-'\x22' .emit *; + +symbol_character + 'A'-'Z' .or 'a'-'z' .or '_'; + +symbol_character2 + 'A'-'Z' .or 'a'-'z' .or '0'-'9' .or '_'; + +.string string_lexer; + +string_lexer + lex_first_identifier_character .and .loop lex_next_identifier_character; + +lex_first_identifier_character + 'a'-'z' .or 'A'-'Z' .or '_'; + +lex_next_identifier_character + 'a'-'z' .or 'A'-'Z' .or '0'-'9' .or '_'; + -- cgit v1.2.3