svn merge -r524:HEAD "^/branches/released" .

1 files changed, 0 insertions, 1716 deletions

diff --git a/mesalib/src/mesa/shader/slang/library/slang_shader.syn b/mesalib/src/mesa/shader/slang/library/slang_shader.syn
deleted file mode 100644
index cc5c70a02..000000000
--- a/mesalib/src/mesa/shader/slang/library/slang_shader.syn
+++ /dev/null
@@ -1,1716 +0,0 @@
-/*
- * Mesa 3-D graphics library
- *
- * Copyright (C) 2004-2006  Brian Paul   All Rights Reserved.
- * Copyright (C) 2008 VMware, Inc.  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_shader.syn
- * slang vertex/fragment shader syntax
- * \author Michal Krol
- */
-
-/*
- * usage:
- *   syn2c slang_shader.syn > slang_shader_syn.h
- *
- * when modifying or extending this file, several things must be taken into
- * consideration:
- *
- * - when adding new operators that were marked as reserved in the
- *   initial specification, one must only uncomment particular lines of
- *   code that refer to operators being added;
- *
- * - when adding new shader targets, one must reserve a new value for
- *   shader_type register and use it in .if constructs for symbols that
- *   are exclusive for that shader;
- *
- * - some symbols mimic output of other symbols - the best example is
- *   the "for" construct: expression "for (foo(); ; bar())" is seen as
- *   "for (foo(); true; bar())" by the output processor - hence, special
- *   care must be taken when rearranging output of essential symbols;
- *
- * - order of single-quoted tokens does matter in alternatives - so do not
- *   parse "<" operator before "<<" and "<<" before "<<=";
- *
- * - all double-quoted tokens are internally preprocessed to eliminate
- *   problems with parsing strings that are prefixes of other strings,
- *   like "sampler1D" and "sampler1DShadow";
- */
-
-.syntax translation_unit;
-
-/* revision number - increment after each change affecting emitted output */
-.emtcode REVISION                                   5
-
-/* external declaration (or precision or invariant stmt) */
-.emtcode EXTERNAL_NULL                              0
-.emtcode EXTERNAL_FUNCTION_DEFINITION               1
-.emtcode EXTERNAL_DECLARATION                       2
-.emtcode DEFAULT_PRECISION                          3
-.emtcode INVARIANT_STMT                             4
-
-/* precision */
-.emtcode PRECISION_DEFAULT                          0
-.emtcode PRECISION_LOW                              1
-.emtcode PRECISION_MEDIUM                           2
-.emtcode PRECISION_HIGH                             3
-
-/* declaration */
-.emtcode DECLARATION_FUNCTION_PROTOTYPE             1
-.emtcode DECLARATION_INIT_DECLARATOR_LIST           2
-
-/* function type */
-.emtcode FUNCTION_ORDINARY                          0
-.emtcode FUNCTION_CONSTRUCTOR                       1
-.emtcode FUNCTION_OPERATOR                          2
-
-/* function call type */
-.emtcode FUNCTION_CALL_NONARRAY                     0
-.emtcode FUNCTION_CALL_ARRAY                        1
-
-/* operator type */
-.emtcode OPERATOR_ADDASSIGN                         1
-.emtcode OPERATOR_SUBASSIGN                         2
-.emtcode OPERATOR_MULASSIGN                         3
-.emtcode OPERATOR_DIVASSIGN                         4
-/*.emtcode OPERATOR_MODASSIGN                         5*/
-/*.emtcode OPERATOR_LSHASSIGN                         6*/
-/*.emtcode OPERATOR_RSHASSIGN                         7*/
-/*.emtcode OPERATOR_ORASSIGN                          8*/
-/*.emtcode OPERATOR_XORASSIGN                         9*/
-/*.emtcode OPERATOR_ANDASSIGN                         10*/
-.emtcode OPERATOR_LOGICALXOR                        11
-/*.emtcode OPERATOR_BITOR                             12*/
-/*.emtcode OPERATOR_BITXOR                            13*/
-/*.emtcode OPERATOR_BITAND                            14*/
-.emtcode OPERATOR_LESS                              15
-.emtcode OPERATOR_GREATER                           16
-.emtcode OPERATOR_LESSEQUAL                         17
-.emtcode OPERATOR_GREATEREQUAL                      18
-/*.emtcode OPERATOR_LSHIFT                            19*/
-/*.emtcode OPERATOR_RSHIFT                            20*/
-.emtcode OPERATOR_MULTIPLY                          21
-.emtcode OPERATOR_DIVIDE                            22
-/*.emtcode OPERATOR_MODULUS                           23*/
-.emtcode OPERATOR_INCREMENT                         24
-.emtcode OPERATOR_DECREMENT                         25
-.emtcode OPERATOR_PLUS                              26
-.emtcode OPERATOR_MINUS                             27
-/*.emtcode OPERATOR_COMPLEMENT                        28*/
-.emtcode OPERATOR_NOT                               29
-
-/* init declarator list */
-.emtcode DECLARATOR_NONE                            0
-.emtcode DECLARATOR_NEXT                            1
-
-/* variable declaration */
-.emtcode VARIABLE_NONE                              0
-.emtcode VARIABLE_IDENTIFIER                        1
-.emtcode VARIABLE_INITIALIZER                       2
-.emtcode VARIABLE_ARRAY_EXPLICIT                    3
-.emtcode VARIABLE_ARRAY_UNKNOWN                     4
-
-/* type qualifier */
-.emtcode TYPE_QUALIFIER_NONE                        0
-.emtcode TYPE_QUALIFIER_CONST                       1
-.emtcode TYPE_QUALIFIER_ATTRIBUTE                   2
-.emtcode TYPE_QUALIFIER_VARYING                     3
-.emtcode TYPE_QUALIFIER_UNIFORM                     4
-.emtcode TYPE_QUALIFIER_FIXEDOUTPUT                 5
-.emtcode TYPE_QUALIFIER_FIXEDINPUT                  6
-
-/* invariant qualifier */
-.emtcode TYPE_VARIANT                               90
-.emtcode TYPE_INVARIANT                             91
-
-/* centroid qualifier */
-.emtcode TYPE_CENTER                                95
-.emtcode TYPE_CENTROID                              96
-
-/* type specifier */
-.emtcode TYPE_SPECIFIER_VOID                        0
-.emtcode TYPE_SPECIFIER_BOOL                        1
-.emtcode TYPE_SPECIFIER_BVEC2                       2
-.emtcode TYPE_SPECIFIER_BVEC3                       3
-.emtcode TYPE_SPECIFIER_BVEC4                       4
-.emtcode TYPE_SPECIFIER_INT                         5
-.emtcode TYPE_SPECIFIER_IVEC2                       6
-.emtcode TYPE_SPECIFIER_IVEC3                       7
-.emtcode TYPE_SPECIFIER_IVEC4                       8
-.emtcode TYPE_SPECIFIER_FLOAT                       9
-.emtcode TYPE_SPECIFIER_VEC2                        10
-.emtcode TYPE_SPECIFIER_VEC3                        11
-.emtcode TYPE_SPECIFIER_VEC4                        12
-.emtcode TYPE_SPECIFIER_MAT2                        13
-.emtcode TYPE_SPECIFIER_MAT3                        14
-.emtcode TYPE_SPECIFIER_MAT4                        15
-.emtcode TYPE_SPECIFIER_SAMPLER1D                   16
-.emtcode TYPE_SPECIFIER_SAMPLER2D                   17
-.emtcode TYPE_SPECIFIER_SAMPLER3D                   18
-.emtcode TYPE_SPECIFIER_SAMPLERCUBE                 19
-.emtcode TYPE_SPECIFIER_SAMPLER1DSHADOW             20
-.emtcode TYPE_SPECIFIER_SAMPLER2DSHADOW             21
-.emtcode TYPE_SPECIFIER_SAMPLER2DRECT               22
-.emtcode TYPE_SPECIFIER_SAMPLER2DRECTSHADOW         23
-.emtcode TYPE_SPECIFIER_STRUCT                      24
-.emtcode TYPE_SPECIFIER_TYPENAME                    25
-
-/* OpenGL 2.1 */
-.emtcode TYPE_SPECIFIER_MAT23                       26
-.emtcode TYPE_SPECIFIER_MAT32                       27
-.emtcode TYPE_SPECIFIER_MAT24                       28
-.emtcode TYPE_SPECIFIER_MAT42                       29
-.emtcode TYPE_SPECIFIER_MAT34                       30
-.emtcode TYPE_SPECIFIER_MAT43                       31
-
-/* type specifier array */
-.emtcode TYPE_SPECIFIER_NONARRAY                    0
-.emtcode TYPE_SPECIFIER_ARRAY                       1
-
-/* structure field */
-.emtcode FIELD_NONE                                 0
-.emtcode FIELD_NEXT                                 1
-.emtcode FIELD_ARRAY                                2
-
-/* operation */
-.emtcode OP_END                                     0
-.emtcode OP_BLOCK_BEGIN_NO_NEW_SCOPE                1
-.emtcode OP_BLOCK_BEGIN_NEW_SCOPE                   2
-.emtcode OP_DECLARE                                 3
-.emtcode OP_ASM                                     4
-.emtcode OP_BREAK                                   5
-.emtcode OP_CONTINUE                                6
-.emtcode OP_DISCARD                                 7
-.emtcode OP_RETURN                                  8
-.emtcode OP_EXPRESSION                              9
-.emtcode OP_IF                                      10
-.emtcode OP_WHILE                                   11
-.emtcode OP_DO                                      12
-.emtcode OP_FOR                                     13
-.emtcode OP_PUSH_VOID                               14
-.emtcode OP_PUSH_BOOL                               15
-.emtcode OP_PUSH_INT                                16
-.emtcode OP_PUSH_FLOAT                              17
-.emtcode OP_PUSH_IDENTIFIER                         18
-.emtcode OP_SEQUENCE                                19
-.emtcode OP_ASSIGN                                  20
-.emtcode OP_ADDASSIGN                               21
-.emtcode OP_SUBASSIGN                               22
-.emtcode OP_MULASSIGN                               23
-.emtcode OP_DIVASSIGN                               24
-/*.emtcode OP_MODASSIGN                               25*/
-/*.emtcode OP_LSHASSIGN                               26*/
-/*.emtcode OP_RSHASSIGN                               27*/
-/*.emtcode OP_ORASSIGN                                28*/
-/*.emtcode OP_XORASSIGN                               29*/
-/*.emtcode OP_ANDASSIGN                               30*/
-.emtcode OP_SELECT                                  31
-.emtcode OP_LOGICALOR                               32
-.emtcode OP_LOGICALXOR                              33
-.emtcode OP_LOGICALAND                              34
-/*.emtcode OP_BITOR                                   35*/
-/*.emtcode OP_BITXOR                                  36*/
-/*.emtcode OP_BITAND                                  37*/
-.emtcode OP_EQUAL                                   38
-.emtcode OP_NOTEQUAL                                39
-.emtcode OP_LESS                                    40
-.emtcode OP_GREATER                                 41
-.emtcode OP_LESSEQUAL                               42
-.emtcode OP_GREATEREQUAL                            43
-/*.emtcode OP_LSHIFT                                  44*/
-/*.emtcode OP_RSHIFT                                  45*/
-.emtcode OP_ADD                                     46
-.emtcode OP_SUBTRACT                                47
-.emtcode OP_MULTIPLY                                48
-.emtcode OP_DIVIDE                                  49
-/*.emtcode OP_MODULUS                                 50*/
-.emtcode OP_PREINCREMENT                            51
-.emtcode OP_PREDECREMENT                            52
-.emtcode OP_PLUS                                    53
-.emtcode OP_MINUS                                   54
-/*.emtcode OP_COMPLEMENT                              55*/
-.emtcode OP_NOT                                     56
-.emtcode OP_SUBSCRIPT                               57
-.emtcode OP_CALL                                    58
-.emtcode OP_FIELD                                   59
-.emtcode OP_POSTINCREMENT                           60
-.emtcode OP_POSTDECREMENT                           61
-.emtcode OP_PRECISION                               62
-.emtcode OP_METHOD                                  63
-
-/* parameter qualifier */
-.emtcode PARAM_QUALIFIER_IN                         0
-.emtcode PARAM_QUALIFIER_OUT                        1
-.emtcode PARAM_QUALIFIER_INOUT                      2
-
-/* function parameter */
-.emtcode PARAMETER_NONE                             0
-.emtcode PARAMETER_NEXT                             1
-
-/* function parameter array presence */
-.emtcode PARAMETER_ARRAY_NOT_PRESENT                0
-.emtcode PARAMETER_ARRAY_PRESENT                    1
-
-/* INVALID_EXTERNAL_DECLARATION seems to be reported when there's */
-/* any syntax errors... */
-.errtext INVALID_EXTERNAL_DECLARATION               "2001: Syntax error."
-.errtext INVALID_OPERATOR_OVERRIDE                  "2002: Invalid operator override."
-.errtext LBRACE_EXPECTED                            "2003: '{' expected but '$err_token$' found."
-.errtext LPAREN_EXPECTED                            "2004: '(' expected but '$err_token$' found."
-.errtext RPAREN_EXPECTED                            "2005: ')' expected but '$err_token$' found."
-.errtext INVALID_PRECISION                          "2006: Invalid precision specifier '$err_token$'."
-.errtext INVALID_PRECISION_TYPE                     "2007: Invalid precision type '$err_token$'."
-
-
-/*
- * tells whether the shader that is being parsed is a built-in shader or not
- *  0 - normal behaviour
- *  1 - accepts constructor and operator definitions and __asm statements
- * the implementation will set it to 1 when compiling internal built-in shaders
- */
-.regbyte parsing_builtin                            0
-
-/*
- * holds the type of the shader being parsed; possible values are
- * listed below.
- *   FRAGMENT_SHADER            1
- *   VERTEX_SHADER              2
- * shader type is set by the caller before parsing
- */
-.regbyte shader_type                                0
-
-/*
- * <variable_identifier> ::= <identifier>
- */
-variable_identifier
-    identifier .emit OP_PUSH_IDENTIFIER;
-
-/*
- *  <primary_expression> ::= <variable_identifier>
- *                         | <intconstant>
- *                         | <floatconstant>
- *                         | <boolconstant>
- *                         | "(" <expression> ")"
- */
-primary_expression
-    floatconstant .or boolconstant .or intconstant .or variable_identifier .or primary_expression_1;
-primary_expression_1
-    lparen .and expression .and rparen;
-
-/*
- * <postfix_expression> ::= <primary_expression>
- *                        | <postfix_expression> "[" <integer_expression> "]"
- *                        | <function_call>
- *                        | <postfix_expression> "." <field_selection>
- *                        | <postfix_expression> "++"
- *                        | <postfix_expression> "--"
- */
-postfix_expression
-    postfix_expression_1 .and .loop postfix_expression_2;
-postfix_expression_1
-    function_call .or primary_expression;
-postfix_expression_2
-    postfix_expression_3 .or postfix_expression_4 .or
-    plusplus .emit OP_POSTINCREMENT .or
-    minusminus .emit OP_POSTDECREMENT;
-postfix_expression_3
-    lbracket .and integer_expression .and rbracket .emit OP_SUBSCRIPT;
-postfix_expression_4
-    dot .and field_selection .emit OP_FIELD;
-
-/*
- * <integer_expression> ::= <expression>
- */
-integer_expression
-    expression;
-
-/*
- * <function_call> ::= <function_call_generic>
- */
-function_call
-    function_call_or_method;
-
-/*
- * <function_call_or_method> ::= <regular_function_call>
- *                             | <postfix_expression> "." <function_call_generic>
- */
-function_call_or_method
-    regular_function_call .or method_call;
-
-/*
- * <method_call> ::= <identifier> "." <function_call_generic>
- */
-method_call
-    identifier .emit OP_METHOD .and dot .and function_call_generic .and .true .emit OP_END;
-
-/*
- * <regular_function_call> ::= <function_call_generic>
- */
-regular_function_call
-    function_call_generic .emit OP_CALL .and .true .emit OP_END;
-
-/*
- * <function_call_generic> ::= <function_call_header_with_parameters> ")"
- *                           | <function_call_header_no_parameters> ")"
- */
-function_call_generic
-    function_call_generic_1 .or function_call_generic_2;
-function_call_generic_1
-    function_call_header_with_parameters .and rparen .error RPAREN_EXPECTED;
-function_call_generic_2
-    function_call_header_no_parameters .and rparen .error RPAREN_EXPECTED;
-
-/*
- * <function_call_header_no_parameters>::= <function_call_header> "void"
- *                                        | <function_call_header>
- */
-function_call_header_no_parameters
-    function_call_header .and function_call_header_no_parameters_1;
-function_call_header_no_parameters_1
-    "void" .or .true;
-
-/*
- * <function_call_header_with_parameters> ::= <function_call_header> <assignment_expression>
- *                                          | <function_call_header_with_parameters> "," <assignment_expression>
- */
-function_call_header_with_parameters
-    function_call_header .and assignment_expression .and .true .emit OP_END .and
-    .loop function_call_header_with_parameters_1;
-function_call_header_with_parameters_1
-    comma .and assignment_expression .and .true .emit OP_END;
-
-/*
- * <function_call_header> ::= <function_identifier> "("
- */
-function_call_header
-    function_identifier .and lparen;
-
-/*
- * <function_identifier> ::= <constructor_identifier>
- *                         | <identifier>
- *                         | <type_specifier>
- *
- * note: <constructor_identifier> and <type_specifier> have been deleted
- */
-function_identifier
-    identifier .and function_identifier_opt_array;
-function_identifier_opt_array
-    function_identifier_array .emit FUNCTION_CALL_ARRAY .or
-    .true .emit FUNCTION_CALL_NONARRAY;
-function_identifier_array
-    lbracket .and constant_expression .and rbracket;
-
-/*
- * <unary_expression> ::= <postfix_expression>
- *                      | "++" <unary_expression>
- *                      | "--" <unary_expression>
- *                      | <unary_operator> <unary_expression>
- *
- * <unary_operator>   ::= "+"
- *                      | "-"
- *                      | "!"
- *                      | "~" // reserved
- */
-unary_expression
-    postfix_expression .or unary_expression_1 .or unary_expression_2 .or unary_expression_3 .or
-    unary_expression_4 .or unary_expression_5/* .or unary_expression_6*/;
-unary_expression_1
-    plusplus .and unary_expression .and .true .emit OP_PREINCREMENT;
-unary_expression_2
-    minusminus .and unary_expression .and .true .emit OP_PREDECREMENT;
-unary_expression_3
-    plus .and unary_expression .and .true .emit OP_PLUS;
-unary_expression_4
-    minus .and unary_expression .and .true .emit OP_MINUS;
-unary_expression_5
-    bang .and unary_expression .and .true .emit OP_NOT;
-/*unary_expression_6
-    tilde .and unary_expression .and .true .emit OP_COMPLEMENT;*/
-
-/*
- * <multiplicative_expression> ::= <unary_expression>
- *                               | <multiplicative_expression> "*" <unary_expression>
- *                               | <multiplicative_expression> "/" <unary_expression>
- *                               | <multiplicative_expression> "%" <unary_expression> // reserved
- */
-multiplicative_expression
-    unary_expression .and .loop multiplicative_expression_1;
-multiplicative_expression_1
-    multiplicative_expression_2 .or multiplicative_expression_3/* .or multiplicative_expression_4*/;
-multiplicative_expression_2
-    star .and unary_expression .and .true .emit OP_MULTIPLY;
-multiplicative_expression_3
-    slash .and unary_expression .and .true .emit OP_DIVIDE;
-/*multiplicative_expression_4
-    percent .and unary_expression .and .true .emit OP_MODULUS;*/
-
-/*
- * <additive_expression> ::= <multiplicative_expression>
- *                         | <additive_expression> "+" <multiplicative_expression>
- *                         | <additive_expression> "-" <multiplicative_expression>
- */
-additive_expression
-    multiplicative_expression .and .loop additive_expression_1;
-additive_expression_1
-    additive_expression_2 .or additive_expression_3;
-additive_expression_2
-    plus .and multiplicative_expression .and .true .emit OP_ADD;
-additive_expression_3
-    minus .and multiplicative_expression .and .true .emit OP_SUBTRACT;
-
-/*
- * <shift_expression> ::= <additive_expression>
- *                      | <shift_expression> "<<" <additive_expression> // reserved
- *                      | <shift_expression> ">>" <additive_expression> // reserved
- */
-shift_expression
-    additive_expression/* .and .loop shift_expression_1*/;
-/*shift_expression_1
-    shift_expression_2 .or shift_expression_3;*/
-/*shift_expression_2
-    lessless .and additive_expression .and .true .emit OP_LSHIFT;*/
-/*shift_expression_3
-    greatergreater .and additive_expression .and .true .emit OP_RSHIFT;*/
-
-/*
- * <relational_expression> ::= <shift_expression>
- *                           | <relational_expression> "<" <shift_expression>
- *                           | <relational_expression> ">" <shift_expression>
- *                           | <relational_expression> "<=" <shift_expression>
- *                           | <relational_expression> ">=" <shift_expression>
- */
-relational_expression
-    shift_expression .and .loop relational_expression_1;
-relational_expression_1
-    relational_expression_2 .or relational_expression_3 .or relational_expression_4 .or
-    relational_expression_5;
-relational_expression_2
-    lessequals .and shift_expression .and .true .emit OP_LESSEQUAL;
-relational_expression_3
-    greaterequals .and shift_expression .and .true .emit OP_GREATEREQUAL;
-relational_expression_4
-    less .and shift_expression .and .true .emit OP_LESS;
-relational_expression_5
-    greater .and shift_expression .and .true .emit OP_GREATER;
-
-/*
- * <equality_expression> ::= <relational_expression>
- *                         | <equality_expression> "==" <relational_expression>
- *                         | <equality_expression> "!=" <relational_expression>
- */
-equality_expression
-    relational_expression .and .loop equality_expression_1;
-equality_expression_1
-    equality_expression_2 .or equality_expression_3;
-equality_expression_2
-    equalsequals .and relational_expression .and .true .emit OP_EQUAL;
-equality_expression_3
-    bangequals .and relational_expression .and .true .emit OP_NOTEQUAL;
-
-/*
- * <and_expression> ::= <equality_expression>
- *                    | <and_expression> "&" <equality_expression> // reserved
- */
-and_expression
-    equality_expression/* .and .loop and_expression_1*/;
-/*and_expression_1
-    ampersand .and equality_expression .and .true .emit OP_BITAND;*/
-
-/*
- * <exclusive_or_expression> ::= <and_expression>
- *                             | <exclusive_or_expression> "^" <and_expression> // reserved
- */
-exclusive_or_expression
-    and_expression/* .and .loop exclusive_or_expression_1*/;
-/*exclusive_or_expression_1
-    caret .and and_expression .and .true .emit OP_BITXOR;*/
-
-/*
- * <inclusive_or_expression> ::= <exclusive_or_expression>
- *                             | <inclusive_or_expression> "|" <exclusive_or_expression> // reserved
- */
-inclusive_or_expression
-    exclusive_or_expression/* .and .loop inclusive_or_expression_1*/;
-/*inclusive_or_expression_1
-    bar .and exclusive_or_expression .and .true .emit OP_BITOR;*/
-
-/*
- * <logical_and_expression> ::= <inclusive_or_expression>
- *                            | <logical_and_expression> "&&" <inclusive_or_expression>
- */
-logical_and_expression
-    inclusive_or_expression .and .loop logical_and_expression_1;
-logical_and_expression_1
-    ampersandampersand .and inclusive_or_expression .and .true .emit OP_LOGICALAND;
-
-/*
- * <logical_xor_expression> ::= <logical_and_expression>
- *                            | <logical_xor_expression> "^^" <logical_and_expression>
- */
-logical_xor_expression
-    logical_and_expression .and .loop logical_xor_expression_1;
-logical_xor_expression_1
-    caretcaret .and logical_and_expression .and .true .emit OP_LOGICALXOR;
-
-/*
- * <logical_or_expression> ::= <logical_xor_expression>
- *                           | <logical_or_expression> "||" <logical_xor_expression>
- */
-logical_or_expression
-    logical_xor_expression .and .loop logical_or_expression_1;
-logical_or_expression_1
-    barbar .and logical_xor_expression .and .true .emit OP_LOGICALOR;
-
-/*
- * <conditional_expression> ::= <logical_or_expression>
- *                            | <logical_or_expression> "?" <expression> ":" <conditional_expression>
- */
-conditional_expression
-    logical_or_expression .and .loop conditional_expression_1;
-conditional_expression_1
-    question .and expression .and colon .and conditional_expression .and .true .emit OP_SELECT;
-
-/*
- * <assignment_expression> ::= <conditional_expression>
- *                           | <unary_expression> <assignment_operator> <assignment_expression>
- *
- * <assignment_operator> ::= "="
- *                         | "*="
- *                         | "/="
- *                         | "+="
- *                         | "-="
- *                         | "%=" // reserved
- *                         | "<<=" // reserved
- *                         | ">>=" // reserved
- *                         | "&=" // reserved
- *                         | "^=" // reserved
- *                         | "|=" // reserved
- */
-assignment_expression
-    assignment_expression_1 .or assignment_expression_2 .or assignment_expression_3 .or
-    assignment_expression_4 .or assignment_expression_5/* .or assignment_expression_6 .or
-    assignment_expression_7 .or assignment_expression_8 .or assignment_expression_9 .or
-    assignment_expression_10 .or assignment_expression_11*/ .or conditional_expression;
-assignment_expression_1
-    unary_expression .and equals .and assignment_expression .and .true .emit OP_ASSIGN;
-assignment_expression_2
-    unary_expression .and starequals .and assignment_expression .and .true .emit OP_MULASSIGN;
-assignment_expression_3
-    unary_expression .and slashequals .and assignment_expression .and .true .emit OP_DIVASSIGN;
-assignment_expression_4
-    unary_expression .and plusequals .and assignment_expression .and .true .emit OP_ADDASSIGN;
-assignment_expression_5
-    unary_expression .and minusequals .and assignment_expression .and .true .emit OP_SUBASSIGN;
-/*assignment_expression_6
-    unary_expression .and percentequals .and assignment_expression .and .true .emit OP_MODASSIGN;*/
-/*assignment_expression_7
-    unary_expression .and lesslessequals .and assignment_expression .and .true .emit OP_LSHASSIGN;*/
-/*assignment_expression_8
-    unary_expression .and greatergreaterequals .and assignment_expression .and
-    .true .emit OP_RSHASSIGN;*/
-/*assignment_expression_9
-    unary_expression .and ampersandequals .and assignment_expression .and .true .emit OP_ANDASSIGN;*/
-/*assignment_expression_10
-    unary_expression .and caretequals .and assignment_expression .and .true .emit OP_XORASSIGN;*/
-/*assignment_expression_11
-    unary_expression .and barequals .and assignment_expression .and .true .emit OP_ORASSIGN;*/
-
-/*
- * <expression> ::= <assignment_expression>
- *                | <expression> "," <assignment_expression>
- */
-expression
-    assignment_expression .and .loop expression_1;
-expression_1
-    comma .and assignment_expression .and .true .emit OP_SEQUENCE;
-
-/*
- * <constant_expression> ::= <conditional_expression>
- */
-constant_expression
-    conditional_expression .and .true .emit OP_END;
-
-/*
- * <declaration> ::= <function_prototype> ";"
- *                 | <init_declarator_list> ";"
- */
-declaration
-    declaration_1 .or declaration_2;
-declaration_1
-    function_prototype .emit DECLARATION_FUNCTION_PROTOTYPE .and semicolon;
-declaration_2
-    init_declarator_list .emit DECLARATION_INIT_DECLARATOR_LIST .and semicolon;
-
-/*
- * <function_prototype> ::= <function_header> "void" ")"
- *                        | <function_declarator> ")"
- */
-function_prototype
-    function_prototype_1 .or function_prototype_2;
-function_prototype_1
-    function_header .and "void" .and rparen .error RPAREN_EXPECTED .emit PARAMETER_NONE;
-function_prototype_2
-    function_declarator .and rparen .error RPAREN_EXPECTED .emit PARAMETER_NONE;
-
-/*
- * <function_declarator> ::= <function_header>
- *                         | <function_header_with_parameters>
- */
-function_declarator
-    function_header_with_parameters .or function_header;
-
-/*
- * <function_header_with_parameters> ::= <function_header> <parameter_declaration>
- *                                     | <function_header_with_parameters> ","
- *                                       <parameter_declaration>
- */
-function_header_with_parameters
-    function_header .and parameter_declaration .and .loop function_header_with_parameters_1;
-function_header_with_parameters_1
-    comma .and parameter_declaration;
-
-/*
- * <function_header> ::= <fully_specified_type> <identifier> "("
- */
-function_header
-    function_header_nospace .or function_header_space;
-function_header_space
-    fully_specified_type_space .and space .and function_decl_identifier .and lparen;
-function_header_nospace
-    fully_specified_type_nospace .and function_decl_identifier .and lparen;
-
-/*
- * <function_decl_identifier> ::= "__constructor"
- *                              | <__operator>
- *                              | <identifier>
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows operator and constructor prototypes and definitions
- */
-function_decl_identifier
-    .if (parsing_builtin != 0) __operator .emit FUNCTION_OPERATOR .or
-    .if (parsing_builtin != 0) "__constructor" .emit FUNCTION_CONSTRUCTOR .or
-    identifier .emit FUNCTION_ORDINARY;
-
-/*
- * <__operator> ::= "__operator" <overriden_op>
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows operator prototypes and definitions
- */
-__operator
-    "__operator" .and overriden_operator .error INVALID_OPERATOR_OVERRIDE;
-
-/*
- * <overriden_op> ::= "="
- *                  | "+="
- *                  | "-="
- *                  | "*="
- *                  | "/="
- *                  | "%=" // reserved
- *                  | "<<=" // reserved
- *                  | ">>=" // reserved
- *                  | "&=" // reserved
- *                  | "^=" // reserved
- *                  | "|=" // reserved
- *                  | "^^"
- *                  | "|" // reserved
- *                  | "^" // reserved
- *                  | "&" // reserved
- *                  | "=="
- *                  | "!="
- *                  | "<"
- *                  | ">"
- *                  | "<="
- *                  | ">="
- *                  | "<<" // reserved
- *                  | ">>" // reserved
- *                  | "*"
- *                  | "/"
- *                  | "%" // reserved
- *                  | "++"
- *                  | "--"
- *                  | "+"
- *                  | "-"
- *                  | "~" // reserved
- *                  | "!"
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows operator prototypes and definitions
- */
-overriden_operator
-    plusplus .emit OPERATOR_INCREMENT .or
-    plusequals .emit OPERATOR_ADDASSIGN .or
-    plus .emit OPERATOR_PLUS .or
-    minusminus .emit OPERATOR_DECREMENT .or
-    minusequals .emit OPERATOR_SUBASSIGN .or
-    minus .emit OPERATOR_MINUS .or
-    bang .emit OPERATOR_NOT .or
-    starequals .emit OPERATOR_MULASSIGN .or
-    star .emit OPERATOR_MULTIPLY .or
-    slashequals .emit OPERATOR_DIVASSIGN .or
-    slash .emit OPERATOR_DIVIDE .or
-    lessequals .emit OPERATOR_LESSEQUAL .or
-    /*lesslessequals .emit OPERATOR_LSHASSIGN .or*/
-    /*lessless .emit OPERATOR_LSHIFT .or*/
-    less .emit OPERATOR_LESS .or
-    greaterequals .emit OPERATOR_GREATEREQUAL .or
-    /*greatergreaterequals .emit OPERATOR_RSHASSIGN .or*/
-    /*greatergreater .emit OPERATOR_RSHIFT .or*/
-    greater .emit OPERATOR_GREATER .or
-    /*percentequals .emit OPERATOR_MODASSIGN .or*/
-    /*percent .emit OPERATOR_MODULUS .or*/
-    /*ampersandequals .emit OPERATOR_ANDASSIGN */
-    /*ampersand .emit OPERATOR_BITAND .or*/
-    /*barequals .emit OPERATOR_ORASSIGN .or*/
-    /*bar .emit OPERATOR_BITOR .or*/
-    /*tilde .emit OPERATOR_COMPLEMENT .or*/
-    /*caretequals .emit OPERATOR_XORASSIGN .or*/
-    caretcaret .emit OPERATOR_LOGICALXOR /*.or
-    caret .emit OPERATOR_BITXOR*/;
-
-/*
- * <parameter_declarator> ::= <type_specifier> <identifier>
- *                          | <type_specifier> <identifier> "[" <constant_expression> "]"
- */
-parameter_declarator
-    parameter_declarator_nospace .or parameter_declarator_space;
-parameter_declarator_nospace
-    type_specifier_nospace .and identifier .and parameter_declarator_1;
-parameter_declarator_space
-    type_specifier_space .and space .and identifier .and parameter_declarator_1;
-parameter_declarator_1
-    parameter_declarator_2 .emit PARAMETER_ARRAY_PRESENT .or
-    .true .emit PARAMETER_ARRAY_NOT_PRESENT;
-parameter_declarator_2
-    lbracket .and constant_expression .and rbracket;
-
-/*
- * <parameter_declaration> ::= <type_qualifier> <parameter_qualifier>
- *                             <precision> <parameter_declarator>
- *                           | <type_qualifier> <parameter_qualifier>
- *                             <precision> <parameter_type_specifier>
- *                           | <type_qualifier> <parameter_qualifier>
- *                             <parameter_declarator>
- *                           | <type_qualifier> <parameter_qualifier>
- *                             <parameter_type_specifier>
- *                           | <parameter_qualifier> <precision>
- *                             <parameter_declarator>
- *                           | <parameter_qualifier> <precision>
- *                             <parameter_type_specifier>
- *                           | <parameter_qualifier> <parameter_declarator>
- *                           | <parameter_qualifier> <parameter_type_specifier>
- */
-parameter_declaration
-    parameter_declaration_1 .emit PARAMETER_NEXT;
-parameter_declaration_1
-    parameter_declaration_2 .or parameter_declaration_3;
-parameter_declaration_2
-    type_qualifier .and space .and parameter_qualifier .and parameter_declaration_4;
-parameter_declaration_3
-    parameter_qualifier .emit TYPE_QUALIFIER_NONE .and parameter_declaration_4;
-parameter_declaration_4
-    parameter_declaration_optprec .and parameter_declaration_rest;
-parameter_declaration_optprec
-    parameter_declaration_prec .or .true .emit PRECISION_DEFAULT;
-parameter_declaration_prec
-    precision .and space;
-parameter_declaration_rest
-    parameter_declarator .or parameter_type_specifier;
-
-/*
- * <parameter_qualifier> ::= "in"
- *                         | "out"
- *                         | "inout"
- *                         | ""
- */
-parameter_qualifier
-    parameter_qualifier_1 .or .true .emit PARAM_QUALIFIER_IN;
-parameter_qualifier_1
-    parameter_qualifier_2 .and space;
-parameter_qualifier_2
-    "in" .emit PARAM_QUALIFIER_IN .or
-    "out" .emit PARAM_QUALIFIER_OUT .or
-    "inout" .emit PARAM_QUALIFIER_INOUT;
-
-/*
- * <parameter_type_specifier> ::= <type_specifier>
- *                              | <type_specifier> "[" <constant_expression> "]"
- */
-parameter_type_specifier
-    parameter_type_specifier_1 .and .true .emit '\0' .and parameter_type_specifier_2;
-parameter_type_specifier_1
-    type_specifier_nospace .or type_specifier_space;
-parameter_type_specifier_2
-    parameter_type_specifier_3 .emit PARAMETER_ARRAY_PRESENT .or
-    .true .emit PARAMETER_ARRAY_NOT_PRESENT;
-parameter_type_specifier_3
-    lbracket .and constant_expression .and rbracket;
-
-/*
- * <init_declarator_list> ::= <single_declaration>
- *                          | <init_declarator_list> "," <identifier>
- *                          | <init_declarator_list> "," <identifier> "[" "]"
- *                          | <init_declarator_list> "," <identifier> "[" <constant_expression> "]"
- *                          | <init_declarator_list> "," <identifier> "=" <initializer>
- */
-init_declarator_list
-    single_declaration .and .loop init_declarator_list_1 .emit DECLARATOR_NEXT .and
-    .true .emit DECLARATOR_NONE;
-init_declarator_list_1
-    comma .and identifier .emit VARIABLE_IDENTIFIER .and init_declarator_list_2;
-init_declarator_list_2
-    init_declarator_list_3 .or init_declarator_list_4 .or .true .emit VARIABLE_NONE;
-init_declarator_list_3
-    equals .and initializer .emit VARIABLE_INITIALIZER;
-init_declarator_list_4
-    lbracket .and init_declarator_list_5 .and rbracket;
-init_declarator_list_5
-    constant_expression .emit VARIABLE_ARRAY_EXPLICIT .or .true .emit VARIABLE_ARRAY_UNKNOWN;
-
-/*
- * <single_declaration> ::= <fully_specified_type>
- *                        | <fully_specified_type> <identifier>
- *                        | <fully_specified_type> <identifier> "[" "]"
- *                        | <fully_specified_type> <identifier> "[" <constant_expression> "]"
- *                        | <fully_specified_type> <identifier> "=" <initializer>
- */
-single_declaration
-    single_declaration_nospace .or single_declaration_space;
-single_declaration_space
-    fully_specified_type_space .and single_declaration_space_1;
-single_declaration_nospace
-    fully_specified_type_nospace .and single_declaration_nospace_1;
-single_declaration_space_1
-    single_declaration_space_2 .emit VARIABLE_IDENTIFIER .or .true .emit VARIABLE_NONE;
-single_declaration_nospace_1
-    single_declaration_nospace_2 .emit VARIABLE_IDENTIFIER .or .true .emit VARIABLE_NONE;
-single_declaration_space_2
-    space .and identifier .and single_declaration_3;
-single_declaration_nospace_2
-    identifier .and single_declaration_3;
-single_declaration_3
-    single_declaration_4 .or single_declaration_5 .or .true .emit VARIABLE_NONE;
-single_declaration_4
-    equals .and initializer .emit VARIABLE_INITIALIZER;
-single_declaration_5
-    lbracket .and single_declaration_6 .and rbracket;
-single_declaration_6
-    constant_expression .emit VARIABLE_ARRAY_EXPLICIT .or .true .emit VARIABLE_ARRAY_UNKNOWN;
-
-/*
- * <fully_specified_type> ::= <opt_invariant> <opt_centroid> <opt_qualifer> <opt_precision> <type_specifier>
- *
- * Example: "invariant varying highp vec3"
- */
-fully_specified_type_space
-    fully_specified_type_optinvariant .and fully_specified_type_optcentroid .and fully_specified_type_optqual .and fully_specified_type_optprec .and type_specifier_space;
-fully_specified_type_nospace
-    fully_specified_type_optinvariant .and fully_specified_type_optcentroid .and fully_specified_type_optqual .and fully_specified_type_optprec .and type_specifier_nospace;
-fully_specified_type_optinvariant
-    fully_specified_type_invariant .or .true .emit TYPE_VARIANT;
-fully_specified_type_invariant
-    invariant_qualifier .and space;
-fully_specified_type_optcentroid
-    fully_specified_type_centroid .or .true .emit TYPE_CENTER;
-fully_specified_type_centroid
-    centroid_qualifier .and space;
-fully_specified_type_optqual
-    fully_specified_type_qual .or .true .emit TYPE_QUALIFIER_NONE;
-fully_specified_type_qual
-    type_qualifier .and space;
-fully_specified_type_optprec
-    fully_specified_type_prec .or .true .emit PRECISION_DEFAULT;
-fully_specified_type_prec
-    precision .and space;
-
-/*
- * <invariant_qualifier> ::= "invariant"
- */
-invariant_qualifier
-    "invariant" .emit TYPE_INVARIANT;
-
-centroid_qualifier
-    "centroid" .emit TYPE_CENTROID;
-
-
-/*
- * <type_qualifier> ::= "const"
- *                    | "attribute" // Vertex only.
- *                    | "varying"
- *                    | "uniform"
- *                    | "__fixed_output"
- *                    | "__fixed_input"
- *
- * note: this is an extension to the standard language specification,
- * normally slang disallows __fixed_output and __fixed_input type qualifiers
- */
-type_qualifier
-    "const" .emit TYPE_QUALIFIER_CONST .or
-    .if (shader_type == 2) "attribute" .emit TYPE_QUALIFIER_ATTRIBUTE .or
-    "varying" .emit TYPE_QUALIFIER_VARYING .or
-    "uniform" .emit TYPE_QUALIFIER_UNIFORM .or
-    .if (parsing_builtin != 0) "__fixed_output" .emit TYPE_QUALIFIER_FIXEDOUTPUT .or
-    .if (parsing_builtin != 0) "__fixed_input" .emit TYPE_QUALIFIER_FIXEDINPUT;
-
-/*
- * <type_specifier_nonarray> ::= "void"
- *                             | "float"
- *                             | "int"
- *                             | "bool"
- *                             | "vec2"
- *                             | "vec3"
- *                             | "vec4"
- *                             | "bvec2"
- *                             | "bvec3"
- *                             | "bvec4"
- *                             | "ivec2"
- *                             | "ivec3"
- *                             | "ivec4"
- *                             | "mat2"
- *                             | "mat3"
- *                             | "mat4"
- *                             | "mat2x3"
- *                             | "mat3x2"
- *                             | "mat2x4"
- *                             | "mat4x2"
- *                             | "mat3x4"
- *                             | "mat4x3"
- *                             | "sampler1D"
- *                             | "sampler2D"
- *                             | "sampler3D"
- *                             | "samplerCube"
- *                             | "sampler1DShadow"
- *                             | "sampler2DShadow"
- *                             | "sampler2DRect"
- *                             | "sampler2DRectShadow"
- *                             | <struct_specifier>
- *                             | <type_name>
- */
-type_specifier_nonarray_space
-    "void" .emit TYPE_SPECIFIER_VOID .or
-    "float" .emit TYPE_SPECIFIER_FLOAT .or
-    "int" .emit TYPE_SPECIFIER_INT .or
-    "bool" .emit TYPE_SPECIFIER_BOOL .or
-    "vec2" .emit TYPE_SPECIFIER_VEC2 .or
-    "vec3" .emit TYPE_SPECIFIER_VEC3 .or
-    "vec4" .emit TYPE_SPECIFIER_VEC4 .or
-    "bvec2" .emit TYPE_SPECIFIER_BVEC2 .or
-    "bvec3" .emit TYPE_SPECIFIER_BVEC3 .or
-    "bvec4" .emit TYPE_SPECIFIER_BVEC4 .or
-    "ivec2" .emit TYPE_SPECIFIER_IVEC2 .or
-    "ivec3" .emit TYPE_SPECIFIER_IVEC3 .or
-    "ivec4" .emit TYPE_SPECIFIER_IVEC4 .or
-    "mat2" .emit TYPE_SPECIFIER_MAT2 .or
-    "mat3" .emit TYPE_SPECIFIER_MAT3 .or
-    "mat4" .emit TYPE_SPECIFIER_MAT4 .or
-    "mat2x3" .emit TYPE_SPECIFIER_MAT23 .or
-    "mat3x2" .emit TYPE_SPECIFIER_MAT32 .or
-    "mat2x4" .emit TYPE_SPECIFIER_MAT24 .or
-    "mat4x2" .emit TYPE_SPECIFIER_MAT42 .or
-    "mat3x4" .emit TYPE_SPECIFIER_MAT34 .or
-    "mat4x3" .emit TYPE_SPECIFIER_MAT43 .or
-    "sampler1D" .emit TYPE_SPECIFIER_SAMPLER1D .or
-    "sampler2D" .emit TYPE_SPECIFIER_SAMPLER2D .or
-    "sampler3D" .emit TYPE_SPECIFIER_SAMPLER3D .or
-    "samplerCube" .emit TYPE_SPECIFIER_SAMPLERCUBE .or
-    "sampler1DShadow" .emit TYPE_SPECIFIER_SAMPLER1DSHADOW .or
-    "sampler2DShadow" .emit TYPE_SPECIFIER_SAMPLER2DSHADOW .or
-    "sampler2DRect" .emit TYPE_SPECIFIER_SAMPLER2DRECT .or
-    "sampler2DRectShadow" .emit TYPE_SPECIFIER_SAMPLER2DRECTSHADOW .or
-    type_name .emit TYPE_SPECIFIER_TYPENAME;
-type_specifier_nonarray_nospace
-    struct_specifier .emit TYPE_SPECIFIER_STRUCT;
-type_specifier_nonarray
-    type_specifier_nonarray_nospace .or type_specifier_nonarray_space;
-
-/*
- * <type_specifier> ::= <type_specifier_nonarray>
- *                    | <type_specifier_nonarray> "[" <constant_expression> "]"
- */
-type_specifier_space
-    type_specifier_nonarray_space .and .true .emit TYPE_SPECIFIER_NONARRAY;
-type_specifier_nospace
-    type_specifier_nospace_array .or type_specifier_nospace_1;
-type_specifier_nospace_1
-    type_specifier_nonarray_nospace .and .true .emit TYPE_SPECIFIER_NONARRAY;
-type_specifier_nospace_array
-    type_specifier_nonarray .and lbracket .emit TYPE_SPECIFIER_ARRAY .and constant_expression .and rbracket;
-
-/*
- * <struct_specifier> ::= "struct" <identifier> "{" <struct_declaration_list> "}"
- *                      | "struct" "{" <struct_declaration_list> "}"
- */
-struct_specifier
-    "struct" .and struct_specifier_1 .and optional_space .and lbrace .error LBRACE_EXPECTED .and
-    struct_declaration_list .and rbrace .emit FIELD_NONE;
-struct_specifier_1
-    struct_specifier_2 .or .true .emit '\0';
-struct_specifier_2
-    space .and identifier;
-
-/*
- * <struct_declaration_list> ::= <struct_declaration>
- *                             | <struct_declaration_list> <struct_declaration>
- */
-struct_declaration_list
-    struct_declaration .and .loop struct_declaration .emit FIELD_NEXT;
-
-/*
- * <struct_declaration> ::= <type_specifier> <struct_declarator_list> ";"
- */
-struct_declaration
-    struct_declaration_nospace .or struct_declaration_space;
-struct_declaration_space
-    type_specifier_space .and space .and struct_declarator_list .and semicolon .emit FIELD_NONE;
-struct_declaration_nospace
-    type_specifier_nospace .and struct_declarator_list .and semicolon .emit FIELD_NONE;
-
-/*
- * <struct_declarator_list> ::= <struct_declarator>
- *                            | <struct_declarator_list> "," <struct_declarator>
- */
-struct_declarator_list
-    struct_declarator .and .loop struct_declarator_list_1 .emit FIELD_NEXT;
-struct_declarator_list_1
-    comma .and struct_declarator;
-
-/*
- * <struct_declarator> ::= <identifier>
- *                       | <identifier> "[" <constant_expression> "]"
- */
-struct_declarator
-    identifier .and struct_declarator_1;
-struct_declarator_1
-    struct_declarator_2 .emit FIELD_ARRAY .or .true .emit FIELD_NONE;
-struct_declarator_2
-    lbracket .and constant_expression .and rbracket;
-
-/*
- * <initializer> ::= <assignment_expression>
- */
-initializer
-    assignment_expression .and .true .emit OP_END;
-
-/*
- * <declaration_statement> ::= <declaration>
- */
-declaration_statement
-    declaration;
-
-/*
- * <statement> ::= <compound_statement>
- *               | <simple_statement>
- */
-statement
-    compound_statement .or simple_statement;
-statement_space
-    compound_statement .or statement_space_1;
-statement_space_1
-    space .and simple_statement;
-
-/*
- * <simple_statement> ::= <__asm_statement>
- *                      | <selection_statement>
- *                      | <iteration_statement>
- *                      | <jump_statement>
- *                      | <expression_statement>
- *                      | <declaration_statement>
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows use of __asm statements
- */
-simple_statement
-    .if (parsing_builtin != 0) __asm_statement .emit OP_ASM .or
-    selection_statement .or
-    iteration_statement .or
-    precision_stmt .emit OP_PRECISION .or
-    jump_statement .or
-    expression_statement .emit OP_EXPRESSION .or
-    declaration_statement .emit OP_DECLARE;
-
-/*
- * <compound_statement> ::= "{" "}"
- *                        | "{" <statement_list> "}"
- */
-compound_statement
-    compound_statement_1 .emit OP_BLOCK_BEGIN_NEW_SCOPE .and .true .emit OP_END;
-compound_statement_1
-    compound_statement_2 .or compound_statement_3;
-compound_statement_2
-    lbrace .and rbrace;
-compound_statement_3
-    lbrace .and statement_list .and rbrace;
-
-/*
- * <compound_statement_no_new_scope> ::= "{" "}"
- *                                     | "{" <statement_list> "}"
- */
-compound_statement_no_new_scope
-    compound_statement_no_new_scope_1 .emit OP_BLOCK_BEGIN_NO_NEW_SCOPE .and .true .emit OP_END;
-compound_statement_no_new_scope_1
-    compound_statement_no_new_scope_2 .or compound_statement_no_new_scope_3;
-compound_statement_no_new_scope_2
-    lbrace .and rbrace;
-compound_statement_no_new_scope_3
-    lbrace .and statement_list .and rbrace;
-
-
-/*
- * <statement_list> ::= <statement>
- *                    | <statement_list> <statement>
- */
-statement_list
-    statement .and .loop statement;
-
-/*
- * <expression_statement> ::= ";"
- *                          | <expression> ";"
- */
-expression_statement
-    expression_statement_1 .or expression_statement_2;
-expression_statement_1
-    semicolon .emit OP_PUSH_VOID .emit OP_END;
-expression_statement_2
-    expression .and semicolon .emit OP_END;
-
-/*
- * <selection_statement> ::= "if" "(" <expression> ")" <selection_rest_statement>
- */
-selection_statement
-    "if" .emit OP_IF .and lparen .error LPAREN_EXPECTED .and expression .and
-    rparen .error RPAREN_EXPECTED .emit OP_END .and selection_rest_statement;
-
-/*
- * <selection_rest_statement> ::= <statement> "else" <statement>
- *                              | <statement>
- */
-selection_rest_statement
-    statement .and selection_rest_statement_1;
-selection_rest_statement_1
-    selection_rest_statement_2 .or .true .emit OP_EXPRESSION .emit OP_PUSH_VOID .emit OP_END;
-selection_rest_statement_2
-    "else" .and optional_space .and statement;
-
-/*
- * <condition> ::= <expression>
- *               | <fully_specified_type> <identifier> "=" <initializer>
- *
- * note: if <condition_1> is executed, the emit format must
- * match <declaration> emit format
- */
-condition
-    condition_1 .emit OP_DECLARE .emit DECLARATION_INIT_DECLARATOR_LIST .or
-    condition_3 .emit OP_EXPRESSION;
-condition_1
-    condition_1_nospace .or condition_1_space;
-condition_1_nospace
-    fully_specified_type_nospace .and condition_2;
-condition_1_space
-    fully_specified_type_space .and space .and condition_2;
-condition_2
-    identifier .emit VARIABLE_IDENTIFIER .and equals .emit VARIABLE_INITIALIZER .and
-    initializer .and .true .emit DECLARATOR_NONE;
-condition_3
-    expression .and .true .emit OP_END;
-
-/*
- * <iteration_statement> ::= "while" "(" <condition> ")" <statement>
- *                         | "do" <statement> "while" "(" <expression> ")" ";"
- *                         | "for" "(" <for_init_statement> <for_rest_statement> ")" <statement>
- */
-iteration_statement
-    iteration_statement_1 .or iteration_statement_2 .or iteration_statement_3;
-iteration_statement_1
-    "while" .emit OP_WHILE .and lparen .error LPAREN_EXPECTED .and condition .and
-    rparen .error RPAREN_EXPECTED .and statement;
-iteration_statement_2
-    "do" .emit OP_DO .and statement_space .and "while" .and lparen .error LPAREN_EXPECTED .and
-    expression .and rparen .error RPAREN_EXPECTED .emit OP_END .and semicolon;
-iteration_statement_3
-    "for" .emit OP_FOR .and lparen .error LPAREN_EXPECTED .and for_init_statement .and
-    for_rest_statement .and rparen .error RPAREN_EXPECTED .and statement;
-
-/*
- * <for_init_statement> ::= <expression_statement>
- *                        | <declaration_statement>
- */
-for_init_statement
-    expression_statement .emit OP_EXPRESSION .or declaration_statement .emit OP_DECLARE;
-
-/*
- * <conditionopt> ::= <condition>
- *                  | ""
- *
- * note: <conditionopt> is used only by "for" statement.
- * if <condition> is ommitted, parser simulates default behaviour,
- * that is simulates "true" expression
- */
-conditionopt
-    condition .or
-    .true .emit OP_EXPRESSION .emit OP_PUSH_BOOL .emit 2 .emit '1' .emit '\0' .emit OP_END;
-
-/*
- * <for_rest_statement> ::= <conditionopt> ";"
- *                        | <conditionopt> ";" <expression>
- */
-for_rest_statement
-    conditionopt .and semicolon .and for_rest_statement_1;
-for_rest_statement_1
-    for_rest_statement_2 .or .true .emit OP_PUSH_VOID .emit OP_END;
-for_rest_statement_2
-    expression .and .true .emit OP_END;
-
-/*
- * <jump_statement> ::= "continue" ";"
- *                    | "break" ";"
- *                    | "return" ";"
- *                    | "return" <expression> ";"
- *                    | "discard" ";" // Fragment shader only.
- */
-jump_statement
-    jump_statement_1 .or jump_statement_2 .or jump_statement_3 .or jump_statement_4 .or
-    .if (shader_type == 1) jump_statement_5;
-jump_statement_1
-    "continue" .and semicolon .emit OP_CONTINUE;
-jump_statement_2
-    "break" .and semicolon .emit OP_BREAK;
-jump_statement_3
-    "return" .emit OP_RETURN .and optional_space .and expression .and semicolon .emit OP_END;
-jump_statement_4
-    "return" .emit OP_RETURN .and semicolon .emit OP_PUSH_VOID .emit OP_END;
-jump_statement_5
-    "discard" .and semicolon .emit OP_DISCARD;
-
-/*
- * <__asm_statement> ::= "__asm" <identifier> <asm_arguments> ";"
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows __asm statements
- */
-__asm_statement
-    "__asm" .and space .and identifier .and space .and asm_arguments .and semicolon .emit OP_END;
-
-/*
- * <asm_arguments> ::= <asm_argument>
- *                   | <asm_arguments> "," <asm_argument>
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows __asm statements
- */
-asm_arguments
-    asm_argument .and .true .emit OP_END .and .loop asm_arguments_1;
-asm_arguments_1
-    comma .and asm_argument .and .true .emit OP_END;
-
-/*
- * <asm_argument> ::= <variable_identifier>
- *                  | <floatconstant>
- *
- * note: this is an extension to the standard language specification.
- * normally slang disallows __asm statements
- */
-asm_argument
-    var_with_field .or
-    variable_identifier .or
-    floatconstant;
-
-var_with_field
-    variable_identifier .and dot .and field_selection .emit OP_FIELD;
-
-
-/*
- * <translation_unit> ::= <external_declaration>
- *                      | <translation_unit> <external_declaration>
- */
-translation_unit
-    optional_space .emit REVISION .and external_declaration .error INVALID_EXTERNAL_DECLARATION .and
-    .loop external_declaration .and optional_space .and
-    '\0' .error INVALID_EXTERNAL_DECLARATION .emit EXTERNAL_NULL;
-
-
-/*
- * <external_declaration> ::= <function_definition>
- *                          | <declaration>
- */
-external_declaration
-    precision_stmt .emit DEFAULT_PRECISION .or
-    function_definition .emit EXTERNAL_FUNCTION_DEFINITION .or
-    invariant_stmt .emit INVARIANT_STMT .or
-    declaration .emit EXTERNAL_DECLARATION;
-
-
-/*
- * <precision_stmt> ::= "precision" <precision> <prectype>
- */
-precision_stmt
-    "precision" .and space .and precision .error INVALID_PRECISION .and space .and prectype .error INVALID_PRECISION_TYPE .and semicolon;
-
-/*
- * <precision> ::= "lowp"
- *               | "mediump"
- *               | "highp"
- */
-precision
-    "lowp" .emit PRECISION_LOW .or
-    "mediump" .emit PRECISION_MEDIUM .or
-    "highp" .emit PRECISION_HIGH;
-
-/*
- * <prectype> ::= "int"
- *              | "float"
- *              | "a sampler type"
- */
-prectype
-    "int" .emit TYPE_SPECIFIER_INT .or
-    "float" .emit TYPE_SPECIFIER_FLOAT .or
-    "sampler1D" .emit TYPE_SPECIFIER_SAMPLER1D .or
-    "sampler2D" .emit TYPE_SPECIFIER_SAMPLER2D .or
-    "sampler3D" .emit TYPE_SPECIFIER_SAMPLER3D .or
-    "samplerCube" .emit TYPE_SPECIFIER_SAMPLERCUBE .or
-    "sampler1DShadow" .emit TYPE_SPECIFIER_SAMPLER1DSHADOW .or
-    "sampler2DShadow" .emit TYPE_SPECIFIER_SAMPLER2DSHADOW .or
-    "sampler2DRect" .emit TYPE_SPECIFIER_SAMPLER2DRECT .or
-    "sampler2DRectShadow" .emit TYPE_SPECIFIER_SAMPLER2DRECTSHADOW;
-
-
-/*
- * <invariant_stmt> ::= "invariant" identifier;
- */
-invariant_stmt
-    "invariant" .and space .and identifier .and semicolon;
-
-
-/*
- * <function_definition> :: <function_prototype> <compound_statement_no_new_scope>
- */
-function_definition
-    function_prototype .and compound_statement_no_new_scope;
-
-
-
-/*
- * helper rules, not part of the official language syntax
- */
-
-digit_oct
-    '0'-'7';
-
-digit_dec
-    '0'-'9';
-
-digit_hex
-    '0'-'9' .or 'A'-'F' .or 'a'-'f';
-
-id_character_first
-    'a'-'z' .or 'A'-'Z' .or '_';
-
-id_character_next
-    id_character_first .or digit_dec;
-
-identifier
-    id_character_first .emit * .and .loop id_character_next .emit * .and .true .emit '\0';
-
-float
-    float_1 .or float_2 .or float_3;
-float_1
-    float_fractional_constant .and float_optional_exponent_part .and optional_f_suffix;
-float_2
-    float_digit_sequence .and .true .emit '\0' .and float_exponent_part .and optional_f_suffix;
-float_3
-    float_digit_sequence .and .true .emit '\0' .and 'f' .emit '\0';
-
-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 '.' .and float_digit_sequence;
-float_fractional_constant_2
-    float_digit_sequence .and '.' .and .true .emit '\0';
-float_fractional_constant_3
-    '.' .emit '\0' .and float_digit_sequence;
-
-float_optional_exponent_part
-    float_exponent_part .or .true .emit '\0';
-
-float_digit_sequence
-    digit_dec .emit * .and .loop digit_dec .emit * .and .true .emit '\0';
-
-float_exponent_part
-    float_exponent_part_1 .or float_exponent_part_2;
-float_exponent_part_1
-    'e' .and float_optional_sign .and float_digit_sequence;
-float_exponent_part_2
-    'E' .and float_optional_sign .and float_digit_sequence;
-
-float_optional_sign
-    float_sign .or .true;
-
-float_sign
-    '+' .or '-' .emit '-';
-
-optional_f_suffix
-    'f' .or .true;
-
-
-integer
-    integer_hex .or integer_oct .or integer_dec;
-
-integer_hex
-    '0' .and integer_hex_1 .emit 0x10 .and digit_hex .emit * .and .loop digit_hex .emit * .and
-    .true .emit '\0';
-integer_hex_1
-    'x' .or 'X';
-
-integer_oct
-    '0' .emit 8 .emit * .and .loop digit_oct .emit * .and .true .emit '\0';
-
-integer_dec
-    digit_dec .emit 10 .emit * .and .loop digit_dec .emit * .and .true .emit '\0';
-
-boolean
-    "true" .emit 2 .emit '1' .emit '\0' .or
-    "false" .emit 2 .emit '0' .emit '\0';
-
-type_name
-    identifier;
-
-field_selection
-    identifier;
-
-floatconstant
-    float .emit OP_PUSH_FLOAT;
-
-intconstant
-    integer .emit OP_PUSH_INT;
-
-boolconstant
-    boolean .emit OP_PUSH_BOOL;
-
-optional_space
-    .loop single_space;
-
-space
-    single_space .and .loop single_space;
-
-single_space
-    white_char .or c_style_comment_block .or cpp_style_comment_block;
-
-white_char
-    ' ' .or '\t' .or new_line .or '\v' .or '\f';
-
-new_line
-    cr_lf .or lf_cr .or '\n' .or '\r';
-
-cr_lf
-    '\r' .and '\n';
-
-lf_cr
-    '\n' .and '\r';
-
-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';
-
-/* lexical rules */
-
-/*ampersand
-    optional_space .and '&' .and optional_space;*/
-
-ampersandampersand
-    optional_space .and '&' .and '&' .and optional_space;
-
-/*ampersandequals
-    optional_space .and '&' .and '=' .and optional_space;*/
-
-/*bar
-    optional_space .and '|' .and optional_space;*/
-
-barbar
-    optional_space .and '|' .and '|' .and optional_space;
-
-/*barequals
-    optional_space .and '|' .and '=' .and optional_space;*/
-
-bang
-    optional_space .and '!' .and optional_space;
-
-bangequals
-    optional_space .and '!' .and '=' .and optional_space;
-
-/*caret
-    optional_space .and '^' .and optional_space;*/
-
-caretcaret
-    optional_space .and '^' .and '^' .and optional_space;
-
-/*caretequals
-    optional_space .and '^' .and '=' .and optional_space;*/
-
-colon
-    optional_space .and ':' .and optional_space;
-
-comma
-    optional_space .and ',' .and optional_space;
-
-dot
-    optional_space .and '.' .and optional_space;
-
-equals
-    optional_space .and '=' .and optional_space;
-
-equalsequals
-    optional_space .and '=' .and '=' .and optional_space;
-
-greater
-    optional_space .and '>' .and optional_space;
-
-greaterequals
-    optional_space .and '>' .and '=' .and optional_space;
-
-/*greatergreater
-    optional_space .and '>' .and '>' .and optional_space;*/
-
-/*greatergreaterequals
-    optional_space .and '>' .and '>' .and '=' .and optional_space;*/
-
-lbrace
-    optional_space .and '{' .and optional_space;
-
-lbracket
-    optional_space .and '[' .and optional_space;
-
-less
-    optional_space .and '<' .and optional_space;
-
-lessequals
-    optional_space .and '<' .and '=' .and optional_space;
-
-/*lessless
-    optional_space .and '<' .and '<' .and optional_space;*/
-
-/*lesslessequals
-    optional_space .and '<' .and '<' .and '=' .and optional_space;*/
-
-lparen
-    optional_space .and '(' .and optional_space;
-
-minus
-    optional_space .and '-' .and optional_space;
-
-minusequals
-    optional_space .and '-' .and '=' .and optional_space;
-
-minusminus
-    optional_space .and '-' .and '-' .and optional_space;
-
-/*percent
-    optional_space .and '%' .and optional_space;*/
-
-/*percentequals
-    optional_space .and '%' .and '=' .and optional_space;*/
-
-plus
-    optional_space .and '+' .and optional_space;
-
-plusequals
-    optional_space .and '+' .and '=' .and optional_space;
-
-plusplus
-    optional_space .and '+' .and '+' .and optional_space;
-
-question
-    optional_space .and '?' .and optional_space;
-
-rbrace
-    optional_space .and '}' .and optional_space;
-
-rbracket
-    optional_space .and ']' .and optional_space;
-
-rparen
-    optional_space .and ')' .and optional_space;
-
-semicolon
-    optional_space .and ';' .and optional_space;
-
-slash
-    optional_space .and '/' .and optional_space;
-
-slashequals
-    optional_space .and '/' .and '=' .and optional_space;
-
-star
-    optional_space .and '*' .and optional_space;
-
-starequals
-    optional_space .and '*' .and '=' .and optional_space;
-
-/*tilde
-    optional_space .and '~' .and optional_space;*/
-
-/* string rules - these are used internally by the parser when parsing quoted strings */
-
-.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 '_';
-
-/* error rules - these are used by error messages */
-
-err_token
-    '~' .or '`' .or '!' .or '@' .or '#' .or '$' .or '%' .or '^' .or '&' .or '*' .or '(' .or ')' .or
-    '-' .or '+' .or '=' .or '|' .or '\\' .or '[' .or ']' .or '{' .or '}' .or ':' .or ';' .or '"' .or
-    '\'' .or '<' .or ',' .or '>' .or '.' .or '/' .or '?' .or err_identifier;
-
-err_identifier
-    id_character_first .and .loop id_character_next;
-