src/mesa/shader/grammar_syn.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.1
   4  *
   5  * Copyright (C) 1999-2004  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 grammar_syn.h
  27  * syntax parsing engine language syntax
  28  * \author Michal Krol
  29  */
  30
  31 ".syntax grammar;\n"
  32 ".emtcode DECLARATION_END 0x00\n"
  33 ".emtcode DECLARATION_EMITCODE 0x01\n"
  34 ".emtcode DECLARATION_ERRORTEXT 0x02\n"
  35 ".emtcode DECLARATION_REGBYTE 0x03\n"
  36 ".emtcode DECLARATION_LEXER 0x04\n"
  37 ".emtcode DECLARATION_RULE 0x05\n"
  38 ".emtcode SPECIFIER_END 0x00\n"
  39 ".emtcode SPECIFIER_AND_TAG 0x01\n"
  40 ".emtcode SPECIFIER_OR_TAG 0x02\n"
  41 ".emtcode SPECIFIER_CHARACTER_RANGE 0x03\n"
  42 ".emtcode SPECIFIER_CHARACTER 0x04\n"
  43 ".emtcode SPECIFIER_STRING 0x05\n"
  44 ".emtcode SPECIFIER_IDENTIFIER 0x06\n"
  45 ".emtcode SPECIFIER_TRUE 0x07\n"
  46 ".emtcode SPECIFIER_FALSE 0x08\n"
  47 ".emtcode SPECIFIER_DEBUG 0x09\n"
  48 ".emtcode IDENTIFIER_NO_LOOP 0x00\n"
  49 ".emtcode IDENTIFIER_LOOP 0x01\n"
  50 ".emtcode ERROR_NOT_PRESENT 0x00\n"
  51 ".emtcode ERROR_PRESENT 0x01\n"
  52 ".emtcode EMIT_NULL 0x00\n"
  53 ".emtcode EMIT_INTEGER 0x01\n"
  54 ".emtcode EMIT_IDENTIFIER 0x02\n"
  55 ".emtcode EMIT_CHARACTER 0x03\n"
  56 ".emtcode EMIT_LAST_CHARACTER 0x04\n"
  57 ".emtcode EMIT_CURRENT_POSITION 0x05\n"
  58 ".errtext INVALID_GRAMMAR \"internal error 2001: invalid grammar script\"\n"
  59 ".errtext SYNTAX_EXPECTED \"internal error 2002: '.syntax' keyword expected\"\n"
  60 ".errtext IDENTIFIER_EXPECTED \"internal error 2003: identifier expected\"\n"
  61 ".errtext MISSING_SEMICOLON \"internal error 2004: missing ';'\"\n"
  62 ".errtext INTEGER_EXPECTED \"internal error 2005: integer value expected\"\n"
  63 ".errtext STRING_EXPECTED \"internal error 2006: string expected\"\n"
  64 "grammar\n"
  65 " grammar_1 .error INVALID_GRAMMAR;\n"
  66 "grammar_1\n"
  67 " optional_space .and \".syntax\" .error SYNTAX_EXPECTED .and space .and identifier .and\n"
  68 " semicolon .and declaration_list .and optional_space .and '\\0' .emit DECLARATION_END;\n"
  69 "optional_space\n"
  70 " space .or .true;\n"
  71 "space\n"
  72 " single_space .and .loop single_space;\n"
  73 "single_space\n"
  74 " white_char .or comment_block;\n"
  75 "white_char\n"
  76 " ' ' .or '\\t' .or '\\n' .or '\\r';\n"
  77 "comment_block\n"
  78 " '/' .and '*' .and .loop comment_char .and '*' .and '/';\n"
  79 "comment_char\n"
  80 " comment_char_no_star .or comment_char_1;\n"
  81 "comment_char_1\n"
  82 " '*' .and comment_char_no_slash;\n"
  83 "comment_char_no_star\n"
  84 " '\\x2B'-'\\xFF' .or '\\x01'-'\\x29';\n"
  85 "comment_char_no_slash\n"
  86 " '\\x30'-'\\xFF' .or '\\x01'-'\\x2E';\n"
  87 "identifier\n"
  88 " identifier_ne .error IDENTIFIER_EXPECTED;\n"
  89 "identifier_ne\n"
  90 " first_idchar .emit * .and .loop follow_idchar .emit * .and .true .emit '\\0';\n"
  91 "first_idchar\n"
  92 " 'a'-'z' .or 'A'-'Z' .or '_';\n"
  93 "follow_idchar\n"
  94 " first_idchar .or digit_dec;\n"
  95 "digit_dec\n"
  96 " '0'-'9';\n"
  97 "semicolon\n"
  98 " optional_space .and ';' .error MISSING_SEMICOLON .and optional_space;\n"
  99 "declaration_list\n"
 100 " declaration .and .loop declaration;\n"
 101 "declaration\n"
 102 " emitcode_definition .emit DECLARATION_EMITCODE .or\n"
 103 " errortext_definition .emit DECLARATION_ERRORTEXT .or\n"
 104 " regbyte_definition .emit DECLARATION_REGBYTE .or\n"
 105 " lexer_definition .emit DECLARATION_LEXER .or\n"
 106 " rule_definition .emit DECLARATION_RULE;\n"
 107 "emitcode_definition\n"
 108 " \".emtcode\" .and space .and identifier .and space .and integer .and space_or_null;\n"
 109 "integer\n"
 110 " integer_ne .error INTEGER_EXPECTED;\n"
 111 "integer_ne\n"
 112 " hex_prefix .and digit_hex .emit * .and .loop digit_hex .emit * .and .true .emit '\\0';\n"
 113 "hex_prefix\n"
 114 " '0' .and hex_prefix_1;\n"
 115 "hex_prefix_1\n"
 116 " 'x' .or 'X';\n"
 117 "digit_hex\n"
 118 " '0'-'9' .or 'a'-'f' .or 'A'-'F';\n"
 119 "space_or_null\n"
 120 " space .or '\\0';\n"
 121 "errortext_definition\n"
 122 " \".errtext\" .and space .and identifier .and space .and string .and space_or_null;\n"
 123 "string\n"
 124 " string_ne .error STRING_EXPECTED;\n"
 125 "string_ne\n"
 126 " '\"' .and .loop string_char_double_quotes .and '\"' .emit '\\0';\n"
 127 "string_char_double_quotes\n"
 128 " escape_sequence .or string_char .emit * .or '\\'' .emit *;\n"
 129 "string_char\n"
 130 " '\\x5D'-'\\xFF' .or '\\x28'-'\\x5B' .or '\\x23'-'\\x26' .or '\\x0E'-'\\x21' .or '\\x0B'-'\\x0C' .or\n"
 131 " '\\x01'-'\\x09';\n"
 132 "escape_sequence\n"
 133 " '\\\\' .emit * .and escape_code;\n"
 134 "escape_code\n"
 135 " simple_escape_code .emit * .or hex_escape_code .or oct_escape_code;\n"
 136 "simple_escape_code\n"
 137 " '\\'' .or '\"' .or '?' .or '\\\\' .or 'a' .or 'b' .or 'f' .or 'n' .or 'r' .or 't' .or 'v';\n"
 138 "hex_escape_code\n"
 139 " 'x' .emit * .and digit_hex .emit * .and .loop digit_hex .emit *;\n"
 140 "oct_escape_code\n"
 141 " digit_oct .emit * .and optional_digit_oct .and optional_digit_oct;\n"
 142 "digit_oct\n"
 143 " '0'-'7';\n"
 144 "optional_digit_oct\n"
 145 " digit_oct .emit * .or .true;\n"
 146 "regbyte_definition\n"
 147 " \".regbyte\" .and space .and identifier .and space .and integer .and space_or_null;\n"
 148 "lexer_definition\n"
 149 " \".string\" .and space .and identifier .and semicolon;\n"
 150 "rule_definition\n"
 151 " identifier_ne .and space .and definition;\n"
 152 "definition\n"
 153 " specifier .and optional_specifiers_and_or .and semicolon .emit SPECIFIER_END;\n"
 154 "optional_specifiers_and_or\n"
 155 " and_specifiers .emit SPECIFIER_AND_TAG .or or_specifiers .emit SPECIFIER_OR_TAG .or .true;\n"
 156 "specifier\n"
 157 " specifier_condition .and optional_space .and specifier_rule;\n"
 158 "specifier_condition\n"
 159 " specifier_condition_1 .or .true;\n"
 160 "specifier_condition_1\n"
 161 " \".if\" .and optional_space .and '(' .and optional_space .and left_operand .and operator .and\n"
 162 " right_operand .and optional_space .and ')';\n"
 163 "left_operand\n"
 164 " identifier;\n"
 165 "operator\n"
 166 " operator_1 .or operator_2;\n"
 167 "operator_1\n"
 168 " optional_space .and '!' .and '=' .and optional_space;\n"
 169 "operator_2\n"
 170 " optional_space .and '=' .and '=' .and optional_space;\n"
 171 "right_operand\n"
 172 " integer;\n"
 173 "specifier_rule\n"
 174 " specifier_rule_1 .and optional_error .and .loop emit .and .true .emit EMIT_NULL;\n"
 175 "specifier_rule_1\n"
 176 " character_range .emit SPECIFIER_CHARACTER_RANGE .or\n"
 177 " character .emit SPECIFIER_CHARACTER .or\n"
 178 " string_ne .emit SPECIFIER_STRING .or\n"
 179 " \".true\" .emit SPECIFIER_TRUE .or\n"
 180 " \".false\" .emit SPECIFIER_FALSE .or\n"
 181 " \".debug\" .emit SPECIFIER_DEBUG .or\n"
 182 " loop_identifier .emit SPECIFIER_IDENTIFIER;\n"
 183 "character\n"
 184 " '\\'' .and string_char_single_quotes .and '\\'' .emit '\\0';\n"
 185 "string_char_single_quotes\n"
 186 " escape_sequence .or string_char .emit * .or '\"' .emit *;\n"
 187 "character_range\n"
 188 " character .and optional_space .and '-' .and optional_space .and character;\n"
 189 "loop_identifier\n"
 190 " optional_loop .and identifier;\n"
 191 "optional_loop\n"
 192 " optional_loop_1 .emit IDENTIFIER_LOOP .or .true .emit IDENTIFIER_NO_LOOP;\n"
 193 "optional_loop_1\n"
 194 " \".loop\" .and space;\n"
 195 "optional_error\n"
 196 " error .emit ERROR_PRESENT .or .true .emit ERROR_NOT_PRESENT;\n"
 197 "error\n"
 198 " space .and \".error\" .and space .and identifier;\n"
 199 "emit\n"
 200 " emit_output .or emit_regbyte;\n"
 201 "emit_output\n"
 202 " space .and \".emit\" .and space .and emit_param;\n"
 203 "emit_param\n"
 204 " integer_ne .emit EMIT_INTEGER .or\n"
 205 " identifier_ne .emit EMIT_IDENTIFIER .or\n"
 206 " character .emit EMIT_CHARACTER .or\n"
 207 " '*' .emit EMIT_LAST_CHARACTER .or\n"
 208 " '$' .emit EMIT_CURRENT_POSITION;\n"
 209 "emit_regbyte\n"
 210 " space .and \".load\" .and space .and identifier .and space .and emit_param;\n"
 211 "and_specifiers\n"
 212 " and_specifier .and .loop and_specifier;\n"
 213 "or_specifiers\n"
 214 " or_specifier .and .loop or_specifier;\n"
 215 "and_specifier\n"
 216 " space .and \".and\" .and space .and specifier;\n"
 217 "or_specifier\n"
 218 " space .and \".or\" .and space .and specifier;\n"
 219 ".string __string_filter;\n"
 220 "__string_filter\n"
 221 " __first_identifier_char .and .loop __next_identifier_char;\n"
 222 "__first_identifier_char\n"
 223 " 'a'-'z' .or 'A'-'Z' .or '_' .or '.';\n"
 224 "__next_identifier_char\n"
 225 " 'a'-'z' .or 'A'-'Z' .or '_' .or '0'-'9';\n"
 226 ""