diff options
Diffstat (limited to 'src/mesa')
-rw-r--r-- | src/mesa/shader/grammar.syn | 1089 | ||||
-rw-r--r-- | src/mesa/shader/grammar_syn.h | 108 |
2 files changed, 609 insertions, 588 deletions
diff --git a/src/mesa/shader/grammar.syn b/src/mesa/shader/grammar.syn index 62141df175f..5d99f65bfce 100644 --- a/src/mesa/shader/grammar.syn +++ b/src/mesa/shader/grammar.syn @@ -1,522 +1,567 @@ -.syntax grammar;
-
-/* declaration */
-.emtcode DECLARATION_END 0x00
-.emtcode DECLARATION_EMITCODE 0x01
-.emtcode DECLARATION_ERRORTEXT 0x02
-.emtcode DECLARATION_REGBYTE 0x03
-.emtcode DECLARATION_LEXER 0x04
-.emtcode DECLARATION_RULE 0x05
-
-/* specifier */
-.emtcode SPECIFIER_END 0x00
-.emtcode SPECIFIER_AND_TAG 0x01
-.emtcode SPECIFIER_OR_TAG 0x02
-.emtcode SPECIFIER_CHARACTER_RANGE 0x03
-.emtcode SPECIFIER_CHARACTER 0x04
-.emtcode SPECIFIER_STRING 0x05
-.emtcode SPECIFIER_IDENTIFIER 0x06
-.emtcode SPECIFIER_TRUE 0x07
-.emtcode SPECIFIER_FALSE 0x08
-.emtcode SPECIFIER_DEBUG 0x09
-
-/* identifier */
-.emtcode IDENTIFIER_NO_LOOP 0x00
-.emtcode IDENTIFIER_LOOP 0x01
-
-/* error */
-.emtcode ERROR_NOT_PRESENT 0x00
-.emtcode ERROR_PRESENT 0x01
-
-/* emit */
-.emtcode EMIT_NULL 0x00
-.emtcode EMIT_INTEGER 0x01
-.emtcode EMIT_IDENTIFIER 0x02
-.emtcode EMIT_CHARACTER 0x03
-.emtcode EMIT_LAST_CHARACTER 0x04
-.emtcode EMIT_CURRENT_POSITION 0x05
-
-.errtext INVALID_GRAMMAR "internal error 2001: invalid grammar script"
-.errtext SYNTAX_EXPECTED "internal error 2002: '.syntax' keyword expected"
-.errtext IDENTIFIER_EXPECTED "internal error 2003: identifier expected"
-.errtext MISSING_SEMICOLON "internal error 2004: missing ';'"
-.errtext INTEGER_EXPECTED "internal error 2005: integer value expected"
-.errtext STRING_EXPECTED "internal error 2006: string expected"
-
-/*
- <grammar> ::= ".syntax" <identifier> ";" <declaration_list>
-*/
-grammar
- grammar_1 .error INVALID_GRAMMAR;
-grammar_1
- optional_space .and ".syntax" .error SYNTAX_EXPECTED .and space .and identifier .and
- semicolon .and declaration_list .and optional_space .and '\0' .emit DECLARATION_END;
-
-/*
- <optional_space> ::= <space>
- | ""
-*/
-optional_space
- space .or .true;
-
-/*
- <space> ::= <single_space> <single_space>*
-*/
-space
- single_space .and .loop single_space;
-
-/*
- <single_space> ::= <white_char>
- | <comment_block>
-*/
-single_space
- white_char .or comment_block;
-
-/*
- <white_char> ::= " "
- | "\t"
- | "\n"
- | "\r"
-*/
-white_char
- ' ' .or '\t' .or '\n' .or '\r';
-
-/*
- <comment_block> ::= "/" "*" <comment_char>* "*" "/"
-*/
-comment_block
- '/' .and '*' .and .loop comment_char .and '*' .and '/';
-
-/*
- <comment_char> ::= <comment_char_no_star>
- | "*" <comment_char_no_slash>
-*/
-comment_char
- comment_char_no_star .or comment_char_1;
-comment_char_1
- '*' .and comment_char_no_slash;
-
-/*
- <comment_char_no_star> ::= All ASCII characters except "*" and "\0"
-*/
-comment_char_no_star
- '\x2B'-'\xFF' .or '\x01'-'\x29';
-
-/*
- <comment_char_no_slash> ::= All ASCII characters except "/" and "\0"
-*/
-comment_char_no_slash
- '\x30'-'\xFF' .or '\x01'-'\x2E';
-
-/*
- <identifier> ::= <identifier>
-*/
-identifier
- identifier_ne .error IDENTIFIER_EXPECTED;
-
-/*
- <identifier_ne> ::= <first_idchar> <follow_idchar>*
-*/
-identifier_ne
- first_idchar .emit * .and .loop follow_idchar .emit * .and .true .emit '\0';
-
-/*
- <first_idchar> ::= "a"-"z"
- | "A"-"Z"
- | "_"
-*/
-first_idchar
- 'a'-'z' .or 'A'-'Z' .or '_';
-
-/*
- <follow_idchar> ::= <first_idchar>
- | <digit_dec>
-*/
-follow_idchar
- first_idchar .or digit_dec;
-
-/*
- <digit_dec> ::= "0"-"9"
-*/
-digit_dec
- '0'-'9';
-
-/*
- <semicolon> ::= ";"
-*/
-semicolon
- optional_space .and ';' .error MISSING_SEMICOLON .and optional_space;
-
-/*
- <declaration_list> ::= <declaration>
- | <declaration_list> <declaration>
-*/
-declaration_list
- declaration .and .loop declaration;
-
-/*
- <declaration> ::= <emitcode_definition>
- | <errortext_definition>
- | <lexer_definition>
- | <rule_definition>
-*/
-declaration
- emitcode_definition .emit DECLARATION_EMITCODE .or
- errortext_definition .emit DECLARATION_ERRORTEXT .or
- regbyte_definition .emit DECLARATION_REGBYTE .or
- lexer_definition .emit DECLARATION_LEXER .or
- rule_definition .emit DECLARATION_RULE;
-
-/*
- <emitcode_definition> ::= ".emtcode" <identifier> <integer>
-*/
-emitcode_definition
- ".emtcode" .and space .and identifier .and space .and integer .and space_or_null;
-
-/*
- <integer> ::= <integer_ne>
-*/
-integer
- integer_ne .error INTEGER_EXPECTED;
-
-/*
- <integer_ne> :: <hex_prefix> <digit_hex> <digit_hex>*
-*/
-integer_ne
- hex_prefix .and digit_hex .emit * .and .loop digit_hex .emit * .and .true .emit '\0';
-
-/*
- <hex_prefix> ::= "0x"
- | "0X"
-*/
-hex_prefix
- '0' .and hex_prefix_1;
-hex_prefix_1
- 'x' .or 'X';
-
-/*
- <digit_hex> ::= "0"-"9"
- | "a"-"f"
- | "A"-"F"
-*/
-digit_hex
- '0'-'9' .or 'a'-'f' .or 'A'-'F';
-
-/*
- <space_or_null> ::= <space>
- | "\0"
-*/
-space_or_null
- space .or '\0';
-
-/*
- <errortext_definition> ::= ".errtext" <identifier> <string>
-*/
-errortext_definition
- ".errtext" .and space .and identifier .and space .and string .and space_or_null;
-
-/*
- <string> ::= <string_ne>
-*/
-string
- string_ne .error STRING_EXPECTED;
-
-/*
- <string_ne> ::= "\"" <string_char_double_quotes> "\""
-*/
-string_ne
- '"' .and .loop string_char_double_quotes .and '"' .emit '\0';
-
-/*
- <string_char_double_quotes> ::= <escape_sequence>
- | <string_char>
- | "\'"
-*/
-string_char_double_quotes
- escape_sequence .or string_char .emit * .or '\'' .emit *;
-
-/*
- <string_char> ::= All ASCII characters except "\'", "\"", "\n", "\r",
- "\0" and "\\"
-*/
-string_char
- '\x5D'-'\xFF' .or '\x28'-'\x5B' .or '\x23'-'\x26' .or '\x0E'-'\x21' .or '\x0B'-'\x0C' .or
- '\x01'-'\x09';
-
-/*
- <escape_sequence> ::= "\\" <escape_code>
-*/
-escape_sequence
- '\\' .emit * .and escape_code;
-
-/*
- <escape_code> ::= <simple_escape_code>
- | <hex_escape_code>
- | <oct_escape_code>
-*/
-escape_code
- simple_escape_code .emit * .or hex_escape_code .or oct_escape_code;
-
-/*
- <simple_escape_code> ::= "\'"
- | "\""
- | "?"
- | "\\"
- | "a"
- | "b"
- | "f"
- | "n"
- | "r"
- | "t"
- | "v"
-*/
-simple_escape_code
- '\'' .or '"' .or '?' .or '\\' .or 'a' .or 'b' .or 'f' .or 'n' .or 'r' .or 't' .or 'v';
-
-/*
- <hex_escape_code> ::= "x" <digit_hex> <digit_hex>*
-*/
-hex_escape_code
- 'x' .emit * .and digit_hex .emit * .and .loop digit_hex .emit *;
-
-/*
- <oct_escape_code> ::= <digit_oct> <optional_digit_oct> <optional_digit_oct>
-*/
-oct_escape_code
- digit_oct .emit * .and optional_digit_oct .and optional_digit_oct;
-
-/*
- <digit_oct> ::= "0"-"7"
-*/
-digit_oct
- '0'-'7';
-
-/*
- <optional_digit_oct> ::= <digit_oct>
- | ""
-*/
-optional_digit_oct
- digit_oct .emit * .or .true;
-
-/*
- <regbyte_definition> ::= ".regbyte" <identifier> <integer>
-*/
-regbyte_definition
- ".regbyte" .and space .and identifier .and space .and integer .and space_or_null;
-
-/*
- <lexer_definition> ::= ".string" <identifier> ";"
-*/
-lexer_definition
- ".string" .and space .and identifier .and semicolon;
-
-/*
- <rule_definition> ::= <identifier_ne> <definition>
-*/
-rule_definition
- identifier_ne .and space .and definition;
-
-/*
- <definition> ::= <specifier> <optional_specifiers_and_or> ";"
-*/
-definition
- specifier .and optional_specifiers_and_or .and semicolon .emit SPECIFIER_END;
-
-/*
- <optional_specifiers_and_or> ::= <and_specifiers>
- | <or_specifiers>
- | ""
-*/
-optional_specifiers_and_or
- and_specifiers .emit SPECIFIER_AND_TAG .or or_specifiers .emit SPECIFIER_OR_TAG .or .true;
-
-/*
- <specifier> ::= <specifier_condition> <specifier_rule>
-*/
-specifier
- specifier_condition .and optional_space .and specifier_rule;
-
-/*
- <specifier_condition> ::= ".if" "(" <left_operand> <operator> <right_operand> ")"
-*/
-specifier_condition
- specifier_condition_1 .or .true;
-specifier_condition_1
- ".if" .and optional_space .and '(' .and optional_space .and left_operand .and operator .and
- right_operand .and optional_space .and ')';
-
-/*
- <left_operand> ::= <identifier>
-*/
-left_operand
- identifier;
-
-/*
- <operator> ::= "!="
- | "=="
-*/
-operator
- operator_1 .or operator_2;
-operator_1
- optional_space .and '!' .and '=' .and optional_space;
-operator_2
- optional_space .and '=' .and '=' .and optional_space;
-
-/*
- <right_operand> ::= <integer>
-*/
-right_operand
- integer;
-
-/*
- <specifier_rule> ::= <character_range> <optional_error> <emit>*
- | <character> <optional_error> <emit>*
- | <string> <optional_error> <emit>*
- | <loop_identifier> <optional_error> <emit>*
- | ".true" <optional_error> <emit>*
- | ".false" <optional_error> <emit>*
- | ".debug" <optional_error> <emit>*
-*/
-specifier_rule
- specifier_rule_1 .and optional_error .and .loop emit .and .true .emit EMIT_NULL;
-specifier_rule_1
- character_range .emit SPECIFIER_CHARACTER_RANGE .or
- character .emit SPECIFIER_CHARACTER .or
- string_ne .emit SPECIFIER_STRING .or
- ".true" .emit SPECIFIER_TRUE .or
- ".false" .emit SPECIFIER_FALSE .or
- ".debug" .emit SPECIFIER_DEBUG .or
- loop_identifier .emit SPECIFIER_IDENTIFIER;
-
-/*
- <character> ::= "\'" <string_char_single_quotes "\'"
-*/
-character
- '\'' .and string_char_single_quotes .and '\'' .emit '\0';
-
-/*
- <string_char_single_quotes> ::= <escape_sequence>
- | <string_char>
- | "\""
-*/
-string_char_single_quotes
- escape_sequence .or string_char .emit * .or '"' .emit *;
-
-/*
- <character_range> ::= <character> "-" <character>
-*/
-character_range
- character .and optional_space .and '-' .and optional_space .and character;
-
-/*
- <loop_identifier> ::= <optional_loop> <identifier>
-*/
-loop_identifier
- optional_loop .and identifier;
-
-/*
- <optional_loop> ::= ".loop"
- | ""
-*/
-optional_loop
- optional_loop_1 .emit IDENTIFIER_LOOP .or .true .emit IDENTIFIER_NO_LOOP;
-optional_loop_1
- ".loop" .and space;
-
-/*
- <optional_error> ::= <error>
- | ""
-*/
-optional_error
- error .emit ERROR_PRESENT .or .true .emit ERROR_NOT_PRESENT;
-
-/*
- <error> :: ".error" <identifier>
-*/
-error
- space .and ".error" .and space .and identifier;
-
-/*
- <emit> ::= <emit_output>
- | <emit_regbyte>
-*/
-emit
- emit_output .or emit_regbyte;
-
-/*
- <emit_output> ::= ".emit" <emit_param>
-*/
-emit_output
- space .and ".emit" .and space .and emit_param;
-
-/*
- <emit_param> ::= <integer>
- | <identifier>
- | <character>
- | "*"
- | "$"
-*/
-emit_param
- integer_ne .emit EMIT_INTEGER .or
- identifier_ne .emit EMIT_IDENTIFIER .or
- character .emit EMIT_CHARACTER .or
- '*' .emit EMIT_LAST_CHARACTER .or
- '$' .emit EMIT_CURRENT_POSITION;
-
-/*
- <emit_regbyte> ::= ".load" <identifier> <emit_param>
-*/
-emit_regbyte
- space .and ".load" .and space .and identifier .and space .and emit_param;
-
-/*
- <and_specifiers> ::= <and_specifier> <and_specifier>*
-*/
-and_specifiers
- and_specifier .and .loop and_specifier;
-
-/*
- <or_specifiers> ::= <or_specifier> <or_specifier>*
-*/
-or_specifiers
- or_specifier .and .loop or_specifier;
-
-/*
- <and_specifier> ::= ".and" <specifier>
-*/
-and_specifier
- space .and ".and" .and space .and specifier;
-
-/*
- <or_specifier> ::= ".or" <specifier>
-*/
-or_specifier
- space .and ".or" .and space .and specifier;
-
-
-.string __string_filter;
-
-/*
- <__string_filter> ::= <__first_identifier_char> <__next_identifier_char>*
-*/
-__string_filter
- __first_identifier_char .and .loop __next_identifier_char;
-
-/*
- <__first_identifier_char> ::= "a"-"z"
- | "A"-"Z"
- | "_"
- | "."
-*/
-__first_identifier_char
- 'a'-'z' .or 'A'-'Z' .or '_' .or '.';
-
-/*
- <__next_identifier_char> ::= "a"-"z"
- | "A"-"Z"
- | "_"
- | "0"-"9"
-*/
-__next_identifier_char
- 'a'-'z' .or 'A'-'Z' .or '_' .or '0'-'9';
-
+/* + * Mesa 3-D graphics library + * Version: 6.2 + * + * Copyright (C) 1999-2004 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 grammar.syn + * syntax of .syn script - used to validate other syntax files + * \author Michal Krol + */ + +.syntax grammar; + +/* declaration */ +.emtcode DECLARATION_END 0 +.emtcode DECLARATION_EMITCODE 1 +.emtcode DECLARATION_ERRORTEXT 2 +.emtcode DECLARATION_REGBYTE 3 +.emtcode DECLARATION_LEXER 4 +.emtcode DECLARATION_RULE 5 + +/* specifier */ +.emtcode SPECIFIER_END 0 +.emtcode SPECIFIER_AND_TAG 1 +.emtcode SPECIFIER_OR_TAG 2 +.emtcode SPECIFIER_CHARACTER_RANGE 3 +.emtcode SPECIFIER_CHARACTER 4 +.emtcode SPECIFIER_STRING 5 +.emtcode SPECIFIER_IDENTIFIER 6 +.emtcode SPECIFIER_TRUE 7 +.emtcode SPECIFIER_FALSE 8 +.emtcode SPECIFIER_DEBUG 9 + +/* identifier */ +.emtcode IDENTIFIER_SIMPLE 0 +.emtcode IDENTIFIER_LOOP 1 + +/* error */ +.emtcode ERROR_NOT_PRESENT 0 +.emtcode ERROR_PRESENT 1 + +/* emit */ +.emtcode EMIT_NULL 0 +.emtcode EMIT_INTEGER 1 +.emtcode EMIT_IDENTIFIER 2 +.emtcode EMIT_CHARACTER 3 +.emtcode EMIT_LAST_CHARACTER 4 +.emtcode EMIT_CURRENT_POSITION 5 + +.errtext INVALID_GRAMMAR "internal error 2001: invalid grammar script" +.errtext SYNTAX_EXPECTED "internal error 2002: '.syntax' keyword expected" +.errtext IDENTIFIER_EXPECTED "internal error 2003: identifier expected" +.errtext MISSING_SEMICOLON "internal error 2004: missing ';'" +.errtext INTEGER_EXPECTED "internal error 2005: integer value expected" +.errtext STRING_EXPECTED "internal error 2006: string expected" + +/* + <grammar> ::= ".syntax" <identifier> ";" <declaration_list> +*/ +grammar + grammar_1 .error INVALID_GRAMMAR; +grammar_1 + optional_space .and ".syntax" .error SYNTAX_EXPECTED .and space .and identifier .and + semicolon .and declaration_list .and optional_space .and '\0' .emit DECLARATION_END; + +/* + <optional_space> ::= <space> + | "" +*/ +optional_space + space .or .true; + +/* + <space> ::= <single_space> <single_space>* +*/ +space + single_space .and .loop single_space; + +/* + <single_space> ::= <white_char> + | <comment_block> +*/ +single_space + white_char .or comment_block; + +/* + <white_char> ::= " " + | "\t" + | "\n" + | "\r" +*/ +white_char + ' ' .or '\t' .or '\n' .or '\r'; + +/* + <comment_block> ::= "/" "*" <comment_rest> +*/ +comment_block + '/' .and '*' .and comment_rest; + +/* + <comment_rest> ::= <comment_char_no_star>* <comment_end> + | <comment_char_no_star>* "*" <comment_rest> +*/ +comment_rest + .loop comment_char_no_star .and comment_rest_1; +comment_rest_1 + comment_end .or comment_rest_2; +comment_rest_2 + '*' .and comment_rest; + +/* + <comment_char_no_star> ::= All ASCII characters except "*" and "\0" +*/ +comment_char_no_star + '\x2B'-'\xFF' .or '\x01'-'\x29'; + +/* + <comment_end> ::= "*" "/" +*/ +comment_end + '*' .and '/'; + +/* + <identifier> ::= <identifier> +*/ +identifier + identifier_ne .error IDENTIFIER_EXPECTED; + +/* + <identifier_ne> ::= <first_idchar> <follow_idchar>* +*/ +identifier_ne + first_idchar .emit * .and .loop follow_idchar .emit * .and .true .emit '\0'; + +/* + <first_idchar> ::= "a"-"z" + | "A"-"Z" + | "_" +*/ +first_idchar + 'a'-'z' .or 'A'-'Z' .or '_'; + +/* + <follow_idchar> ::= <first_idchar> + | <digit_dec> +*/ +follow_idchar + first_idchar .or digit_dec; + +/* + <digit_dec> ::= "0"-"9" +*/ +digit_dec + '0'-'9'; + +/* + <semicolon> ::= ";" +*/ +semicolon + optional_space .and ';' .error MISSING_SEMICOLON .and optional_space; + +/* + <declaration_list> ::= <declaration> + | <declaration_list> <declaration> +*/ +declaration_list + declaration .and .loop declaration; + +/* + <declaration> ::= <emitcode_definition> + | <errortext_definition> + | <lexer_definition> + | <rule_definition> +*/ +declaration + emitcode_definition .emit DECLARATION_EMITCODE .or + errortext_definition .emit DECLARATION_ERRORTEXT .or + regbyte_definition .emit DECLARATION_REGBYTE .or + lexer_definition .emit DECLARATION_LEXER .or + rule_definition .emit DECLARATION_RULE; + +/* + <emitcode_definition> ::= ".emtcode" <identifier> <integer> +*/ +emitcode_definition + ".emtcode" .and space .and identifier .and space .and integer .and space_or_null; + +/* + <integer> ::= <integer_ne> +*/ +integer + integer_ne .error INTEGER_EXPECTED; + +/* + <integer_ne> ::= <hex_integer> + | <dec_integer> +*/ +integer_ne + hex_integer .emit 0x10 .or dec_integer .emit 10; + +/* + <hex_integer> :: <hex_prefix> <digit_hex> <digit_hex>* +*/ +hex_integer + hex_prefix .and digit_hex .emit * .and .loop digit_hex .emit * .and .true .emit '\0'; + +/* + <hex_prefix> ::= "0x" + | "0X" +*/ +hex_prefix + '0' .and hex_prefix_1; +hex_prefix_1 + 'x' .or 'X'; + +/* + <digit_hex> ::= "0"-"9" + | "a"-"f" + | "A"-"F" +*/ +digit_hex + '0'-'9' .or 'a'-'f' .or 'A'-'F'; + +/* + <dec_integer> :: <digit_dec> <digit_dec>* +*/ +dec_integer + digit_dec .emit * .and .loop digit_dec .emit * .and .true .emit '\0'; + +/* + <space_or_null> ::= <space> + | "\0" +*/ +space_or_null + space .or '\0'; + +/* + <errortext_definition> ::= ".errtext" <identifier> <string> +*/ +errortext_definition + ".errtext" .and space .and identifier .and space .and string .and space_or_null; + +/* + <string> ::= <string_ne> +*/ +string + string_ne .error STRING_EXPECTED; + +/* + <string_ne> ::= "\"" <string_char_double_quotes> "\"" +*/ +string_ne + '"' .and .loop string_char_double_quotes .and '"' .emit '\0'; + +/* + <string_char_double_quotes> ::= <escape_sequence> + | <string_char> + | "\'" +*/ +string_char_double_quotes + escape_sequence .or string_char .emit * .or '\'' .emit *; + +/* + <string_char> ::= All ASCII characters except "\'", "\"", "\n", "\r", + "\0" and "\\" +*/ +string_char + '\x5D'-'\xFF' .or '\x28'-'\x5B' .or '\x23'-'\x26' .or '\x0E'-'\x21' .or '\x0B'-'\x0C' .or + '\x01'-'\x09'; + +/* + <escape_sequence> ::= "\\" <escape_code> +*/ +escape_sequence + '\\' .emit * .and escape_code; + +/* + <escape_code> ::= <simple_escape_code> + | <hex_escape_code> + | <oct_escape_code> +*/ +escape_code + simple_escape_code .emit * .or hex_escape_code .or oct_escape_code; + +/* + <simple_escape_code> ::= "\'" + | "\"" + | "?" + | "\\" + | "a" + | "b" + | "f" + | "n" + | "r" + | "t" + | "v" +*/ +simple_escape_code + '\'' .or '"' .or '?' .or '\\' .or 'a' .or 'b' .or 'f' .or 'n' .or 'r' .or 't' .or 'v'; + +/* + <hex_escape_code> ::= "x" <digit_hex> <digit_hex>* +*/ +hex_escape_code + 'x' .emit * .and digit_hex .emit * .and .loop digit_hex .emit *; + +/* + <oct_escape_code> ::= <digit_oct> <optional_digit_oct> <optional_digit_oct> +*/ +oct_escape_code + digit_oct .emit * .and optional_digit_oct .and optional_digit_oct; + +/* + <digit_oct> ::= "0"-"7" +*/ +digit_oct + '0'-'7'; + +/* + <optional_digit_oct> ::= <digit_oct> + | "" +*/ +optional_digit_oct + digit_oct .emit * .or .true; + +/* + <regbyte_definition> ::= ".regbyte" <identifier> <integer> +*/ +regbyte_definition + ".regbyte" .and space .and identifier .and space .and integer .and space_or_null; + +/* + <lexer_definition> ::= ".string" <identifier> ";" +*/ +lexer_definition + ".string" .and space .and identifier .and semicolon; + +/* + <rule_definition> ::= <identifier_ne> <definition> +*/ +rule_definition + identifier_ne .and space .and definition; + +/* + <definition> ::= <specifier> <optional_specifiers_and_or> ";" +*/ +definition + specifier .and optional_specifiers_and_or .and semicolon .emit SPECIFIER_END; + +/* + <optional_specifiers_and_or> ::= <and_specifiers> + | <or_specifiers> + | "" +*/ +optional_specifiers_and_or + and_specifiers .emit SPECIFIER_AND_TAG .or or_specifiers .emit SPECIFIER_OR_TAG .or .true; + +/* + <specifier> ::= <specifier_condition> <specifier_rule> +*/ +specifier + specifier_condition .and optional_space .and specifier_rule; + +/* + <specifier_condition> ::= ".if" "(" <left_operand> <operator> <right_operand> ")" +*/ +specifier_condition + specifier_condition_1 .or .true; +specifier_condition_1 + ".if" .and optional_space .and '(' .and optional_space .and left_operand .and operator .and + right_operand .and optional_space .and ')'; + +/* + <left_operand> ::= <identifier> +*/ +left_operand + identifier; + +/* + <operator> ::= "!=" + | "==" +*/ +operator + operator_1 .or operator_2; +operator_1 + optional_space .and '!' .and '=' .and optional_space; +operator_2 + optional_space .and '=' .and '=' .and optional_space; + +/* + <right_operand> ::= <integer> +*/ +right_operand + integer; + +/* + <specifier_rule> ::= <character_range> <optional_error> <emit>* + | <character> <optional_error> <emit>* + | <string> <optional_error> <emit>* + | ".true" <optional_error> <emit>* + | ".false" <optional_error> <emit>* + | ".debug" <optional_error> <emit>* + | <advanced_identifier> <optional_error> <emit>* +*/ +specifier_rule + specifier_rule_1 .and optional_error .and .loop emit .and .true .emit EMIT_NULL; +specifier_rule_1 + character_range .emit SPECIFIER_CHARACTER_RANGE .or + character .emit SPECIFIER_CHARACTER .or + string_ne .emit SPECIFIER_STRING .or + ".true" .emit SPECIFIER_TRUE .or + ".false" .emit SPECIFIER_FALSE .or + ".debug" .emit SPECIFIER_DEBUG .or + advanced_identifier .emit SPECIFIER_IDENTIFIER; + +/* + <character> ::= "\'" <string_char_single_quotes "\'" +*/ +character + '\'' .and string_char_single_quotes .and '\'' .emit '\0'; + +/* + <string_char_single_quotes> ::= <escape_sequence> + | <string_char> + | "\"" +*/ +string_char_single_quotes + escape_sequence .or string_char .emit * .or '"' .emit *; + +/* + <character_range> ::= <character> "-" <character> +*/ +character_range + character .and optional_space .and '-' .and optional_space .and character; + +/* + <advanced_identifier> ::= <optional_loop> <identifier> +*/ +advanced_identifier + optional_loop .and identifier; + +/* + <optional_loop> ::= ".loop" + | "" +*/ +optional_loop + optional_loop_1 .emit IDENTIFIER_LOOP .or .true .emit IDENTIFIER_SIMPLE; +optional_loop_1 + ".loop" .and space; + +/* + <optional_error> ::= <error> + | "" +*/ +optional_error + error .emit ERROR_PRESENT .or .true .emit ERROR_NOT_PRESENT; + +/* + <error> :: ".error" <identifier> +*/ +error + space .and ".error" .and space .and identifier; + +/* + <emit> ::= <emit_output> + | <emit_regbyte> +*/ +emit + emit_output .or emit_regbyte; + +/* + <emit_output> ::= ".emit" <emit_param> +*/ +emit_output + space .and ".emit" .and space .and emit_param; + +/* + <emit_param> ::= <integer> + | <identifier> + | <character> + | "*" + | "$" +*/ +emit_param + integer_ne .emit EMIT_INTEGER .or + identifier_ne .emit EMIT_IDENTIFIER .or + character .emit EMIT_CHARACTER .or + '*' .emit EMIT_LAST_CHARACTER .or + '$' .emit EMIT_CURRENT_POSITION; + +/* + <emit_regbyte> ::= ".load" <identifier> <emit_param> +*/ +emit_regbyte + space .and ".load" .and space .and identifier .and space .and emit_param; + +/* + <and_specifiers> ::= <and_specifier> <and_specifier>* +*/ +and_specifiers + and_specifier .and .loop and_specifier; + +/* + <or_specifiers> ::= <or_specifier> <or_specifier>* +*/ +or_specifiers + or_specifier .and .loop or_specifier; + +/* + <and_specifier> ::= ".and" <specifier> +*/ +and_specifier + space .and ".and" .and space .and specifier; + +/* + <or_specifier> ::= ".or" <specifier> +*/ +or_specifier + space .and ".or" .and space .and specifier; + + +.string __string_filter; + +/* + <__string_filter> ::= <__first_identifier_char> <__next_identifier_char>* +*/ +__string_filter + __first_identifier_char .and .loop __next_identifier_char; + +/* + <__first_identifier_char> ::= "a"-"z" + | "A"-"Z" + | "_" + | "." +*/ +__first_identifier_char + 'a'-'z' .or 'A'-'Z' .or '_' .or '.'; + +/* + <__next_identifier_char> ::= "a"-"z" + | "A"-"Z" + | "_" + | "0"-"9" +*/ +__next_identifier_char + 'a'-'z' .or 'A'-'Z' .or '_' .or '0'-'9'; + diff --git a/src/mesa/shader/grammar_syn.h b/src/mesa/shader/grammar_syn.h index 9c3419ece82..840a1ab62c2 100644 --- a/src/mesa/shader/grammar_syn.h +++ b/src/mesa/shader/grammar_syn.h @@ -1,60 +1,30 @@ -/* - * Mesa 3-D graphics library - * Version: 6.1 - * - * Copyright (C) 1999-2004 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 grammar_syn.h - * syntax parsing engine language syntax - * \author Michal Krol - */ - ".syntax grammar;\n" -".emtcode DECLARATION_END 0x00\n" -".emtcode DECLARATION_EMITCODE 0x01\n" -".emtcode DECLARATION_ERRORTEXT 0x02\n" -".emtcode DECLARATION_REGBYTE 0x03\n" -".emtcode DECLARATION_LEXER 0x04\n" -".emtcode DECLARATION_RULE 0x05\n" -".emtcode SPECIFIER_END 0x00\n" -".emtcode SPECIFIER_AND_TAG 0x01\n" -".emtcode SPECIFIER_OR_TAG 0x02\n" -".emtcode SPECIFIER_CHARACTER_RANGE 0x03\n" -".emtcode SPECIFIER_CHARACTER 0x04\n" -".emtcode SPECIFIER_STRING 0x05\n" -".emtcode SPECIFIER_IDENTIFIER 0x06\n" -".emtcode SPECIFIER_TRUE 0x07\n" -".emtcode SPECIFIER_FALSE 0x08\n" -".emtcode SPECIFIER_DEBUG 0x09\n" -".emtcode IDENTIFIER_NO_LOOP 0x00\n" -".emtcode IDENTIFIER_LOOP 0x01\n" -".emtcode ERROR_NOT_PRESENT 0x00\n" -".emtcode ERROR_PRESENT 0x01\n" -".emtcode EMIT_NULL 0x00\n" -".emtcode EMIT_INTEGER 0x01\n" -".emtcode EMIT_IDENTIFIER 0x02\n" -".emtcode EMIT_CHARACTER 0x03\n" -".emtcode EMIT_LAST_CHARACTER 0x04\n" -".emtcode EMIT_CURRENT_POSITION 0x05\n" +".emtcode DECLARATION_END 0\n" +".emtcode DECLARATION_EMITCODE 1\n" +".emtcode DECLARATION_ERRORTEXT 2\n" +".emtcode DECLARATION_REGBYTE 3\n" +".emtcode DECLARATION_LEXER 4\n" +".emtcode DECLARATION_RULE 5\n" +".emtcode SPECIFIER_END 0\n" +".emtcode SPECIFIER_AND_TAG 1\n" +".emtcode SPECIFIER_OR_TAG 2\n" +".emtcode SPECIFIER_CHARACTER_RANGE 3\n" +".emtcode SPECIFIER_CHARACTER 4\n" +".emtcode SPECIFIER_STRING 5\n" +".emtcode SPECIFIER_IDENTIFIER 6\n" +".emtcode SPECIFIER_TRUE 7\n" +".emtcode SPECIFIER_FALSE 8\n" +".emtcode SPECIFIER_DEBUG 9\n" +".emtcode IDENTIFIER_SIMPLE 0\n" +".emtcode IDENTIFIER_LOOP 1\n" +".emtcode ERROR_NOT_PRESENT 0\n" +".emtcode ERROR_PRESENT 1\n" +".emtcode EMIT_NULL 0\n" +".emtcode EMIT_INTEGER 1\n" +".emtcode EMIT_IDENTIFIER 2\n" +".emtcode EMIT_CHARACTER 3\n" +".emtcode EMIT_LAST_CHARACTER 4\n" +".emtcode EMIT_CURRENT_POSITION 5\n" ".errtext INVALID_GRAMMAR \"internal error 2001: invalid grammar script\"\n" ".errtext SYNTAX_EXPECTED \"internal error 2002: '.syntax' keyword expected\"\n" ".errtext IDENTIFIER_EXPECTED \"internal error 2003: identifier expected\"\n" @@ -75,15 +45,17 @@ "white_char\n" " ' ' .or '\\t' .or '\\n' .or '\\r';\n" "comment_block\n" -" '/' .and '*' .and .loop comment_char .and '*' .and '/';\n" -"comment_char\n" -" comment_char_no_star .or comment_char_1;\n" -"comment_char_1\n" -" '*' .and comment_char_no_slash;\n" +" '/' .and '*' .and comment_rest;\n" +"comment_rest\n" +" .loop comment_char_no_star .and comment_rest_1;\n" +"comment_rest_1\n" +" comment_end .or comment_rest_2;\n" +"comment_rest_2\n" +" '*' .and comment_rest;\n" "comment_char_no_star\n" " '\\x2B'-'\\xFF' .or '\\x01'-'\\x29';\n" -"comment_char_no_slash\n" -" '\\x30'-'\\xFF' .or '\\x01'-'\\x2E';\n" +"comment_end\n" +" '*' .and '/';\n" "identifier\n" " identifier_ne .error IDENTIFIER_EXPECTED;\n" "identifier_ne\n" @@ -109,6 +81,8 @@ "integer\n" " integer_ne .error INTEGER_EXPECTED;\n" "integer_ne\n" +" hex_integer .emit 0x10 .or dec_integer .emit 10;\n" +"hex_integer\n" " hex_prefix .and digit_hex .emit * .and .loop digit_hex .emit * .and .true .emit '\\0';\n" "hex_prefix\n" " '0' .and hex_prefix_1;\n" @@ -116,6 +90,8 @@ " 'x' .or 'X';\n" "digit_hex\n" " '0'-'9' .or 'a'-'f' .or 'A'-'F';\n" +"dec_integer\n" +" digit_dec .emit * .and .loop digit_dec .emit * .and .true .emit '\\0';\n" "space_or_null\n" " space .or '\\0';\n" "errortext_definition\n" @@ -179,17 +155,17 @@ " \".true\" .emit SPECIFIER_TRUE .or\n" " \".false\" .emit SPECIFIER_FALSE .or\n" " \".debug\" .emit SPECIFIER_DEBUG .or\n" -" loop_identifier .emit SPECIFIER_IDENTIFIER;\n" +" advanced_identifier .emit SPECIFIER_IDENTIFIER;\n" "character\n" " '\\'' .and string_char_single_quotes .and '\\'' .emit '\\0';\n" "string_char_single_quotes\n" " escape_sequence .or string_char .emit * .or '\"' .emit *;\n" "character_range\n" " character .and optional_space .and '-' .and optional_space .and character;\n" -"loop_identifier\n" +"advanced_identifier\n" " optional_loop .and identifier;\n" "optional_loop\n" -" optional_loop_1 .emit IDENTIFIER_LOOP .or .true .emit IDENTIFIER_NO_LOOP;\n" +" optional_loop_1 .emit IDENTIFIER_LOOP .or .true .emit IDENTIFIER_SIMPLE;\n" "optional_loop_1\n" " \".loop\" .and space;\n" "optional_error\n" |