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+/*
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+** 2000-05-29
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+**
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+** The author disclaims copyright to this source code. In place of
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+** a legal notice, here is a blessing:
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+**
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+** May you do good and not evil.
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+** May you find forgiveness for yourself and forgive others.
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+** May you share freely, never taking more than you give.
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+**
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+*************************************************************************
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+** Driver template for the LEMON parser generator.
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+**
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+** The "lemon" program processes an LALR(1) input grammar file, then uses
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+** this template to construct a parser. The "lemon" program inserts text
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+** at each "%%" line. Also, any "P-a-r-s-e" identifer prefix (without the
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+** interstitial "-" characters) contained in this template is changed into
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+** the value of the %name directive from the grammar. Otherwise, the content
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+** of this template is copied straight through into the generate parser
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+** source file.
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+**
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+** The following is the concatenation of all %include directives from the
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+** input grammar file:
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+*/
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+/************ Begin %include sections from the grammar ************************/
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+%%
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+/**************** End of %include directives **********************************/
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+/* These constants specify the various numeric values for terminal symbols.
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+***************** Begin token definitions *************************************/
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+%%
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+/**************** End token definitions ***************************************/
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+
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+/* The next sections is a series of control #defines.
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+** various aspects of the generated parser.
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+** YYCODETYPE is the data type used to store the integer codes
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+** that represent terminal and non-terminal symbols.
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+** "unsigned char" is used if there are fewer than
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+** 256 symbols. Larger types otherwise.
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+** YYNOCODE is a number of type YYCODETYPE that is not used for
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+** any terminal or nonterminal symbol.
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+** YYFALLBACK If defined, this indicates that one or more tokens
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+** (also known as: "terminal symbols") have fall-back
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+** values which should be used if the original symbol
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+** would not parse. This permits keywords to sometimes
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+** be used as identifiers, for example.
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+** YYACTIONTYPE is the data type used for "action codes" - numbers
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+** that indicate what to do in response to the next
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+** token.
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+** ParseTOKENTYPE is the data type used for minor type for terminal
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+** symbols. Background: A "minor type" is a semantic
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+** value associated with a terminal or non-terminal
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+** symbols. For example, for an "ID" terminal symbol,
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+** the minor type might be the name of the identifier.
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+** Each non-terminal can have a different minor type.
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+** Terminal symbols all have the same minor type, though.
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+** This macros defines the minor type for terminal
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+** symbols.
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+** YYMINORTYPE is the data type used for all minor types.
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+** This is typically a union of many types, one of
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+** which is ParseTOKENTYPE. The entry in the union
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+** for terminal symbols is called "yy0".
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+** YYSTACKDEPTH is the maximum depth of the parser's stack. If
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+** zero the stack is dynamically sized using realloc()
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+** ParseARG_SDECL A static variable declaration for the %extra_argument
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+** ParseARG_PDECL A parameter declaration for the %extra_argument
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+** ParseARG_PARAM Code to pass %extra_argument as a subroutine parameter
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+** ParseARG_STORE Code to store %extra_argument into yypParser
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+** ParseARG_FETCH Code to extract %extra_argument from yypParser
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+** ParseCTX_* As ParseARG_ except for %extra_context
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+** YYERRORSYMBOL is the code number of the error symbol. If not
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+** defined, then do no error processing.
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+** YYNSTATE the combined number of states.
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+** YYNRULE the number of rules in the grammar
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+** YYNTOKEN Number of terminal symbols
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+** YY_MAX_SHIFT Maximum value for shift actions
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+** YY_MIN_SHIFTREDUCE Minimum value for shift-reduce actions
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+** YY_MAX_SHIFTREDUCE Maximum value for shift-reduce actions
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+** YY_ERROR_ACTION The yy_action[] code for syntax error
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+** YY_ACCEPT_ACTION The yy_action[] code for accept
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+** YY_NO_ACTION The yy_action[] code for no-op
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+** YY_MIN_REDUCE Minimum value for reduce actions
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+** YY_MAX_REDUCE Maximum value for reduce actions
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+*/
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+#ifndef INTERFACE
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+# define INTERFACE 1
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+#endif
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+/************* Begin control #defines *****************************************/
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+%%
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+/************* End control #defines *******************************************/
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+#define YY_NLOOKAHEAD ((int)(sizeof(yy_lookahead)/sizeof(yy_lookahead[0])))
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+
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+/* Define the yytestcase() macro to be a no-op if is not already defined
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+** otherwise.
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+**
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+** Applications can choose to define yytestcase() in the %include section
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+** to a macro that can assist in verifying code coverage. For production
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+** code the yytestcase() macro should be turned off. But it is useful
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+** for testing.
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+*/
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+#ifndef yytestcase
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+# define yytestcase(X)
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+#endif
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+
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+
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+/* Next are the tables used to determine what action to take based on the
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+** current state and lookahead token. These tables are used to implement
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+** functions that take a state number and lookahead value and return an
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+** action integer.
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+**
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+** Suppose the action integer is N. Then the action is determined as
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+** follows
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+**
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+** 0 <= N <= YY_MAX_SHIFT Shift N. That is, push the lookahead
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+** token onto the stack and goto state N.
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+**
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+** N between YY_MIN_SHIFTREDUCE Shift to an arbitrary state then
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+** and YY_MAX_SHIFTREDUCE reduce by rule N-YY_MIN_SHIFTREDUCE.
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+**
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+** N == YY_ERROR_ACTION A syntax error has occurred.
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+**
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+** N == YY_ACCEPT_ACTION The parser accepts its input.
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+**
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+** N == YY_NO_ACTION No such action. Denotes unused
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+** slots in the yy_action[] table.
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+**
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+** N between YY_MIN_REDUCE Reduce by rule N-YY_MIN_REDUCE
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+** and YY_MAX_REDUCE
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+**
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+** The action table is constructed as a single large table named yy_action[].
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+** Given state S and lookahead X, the action is computed as either:
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+**
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+** (A) N = yy_action[ yy_shift_ofst[S] + X ]
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+** (B) N = yy_default[S]
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+**
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+** The (A) formula is preferred. The B formula is used instead if
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+** yy_lookahead[yy_shift_ofst[S]+X] is not equal to X.
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+**
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+** The formulas above are for computing the action when the lookahead is
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+** a terminal symbol. If the lookahead is a non-terminal (as occurs after
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+** a reduce action) then the yy_reduce_ofst[] array is used in place of
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+** the yy_shift_ofst[] array.
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+**
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+** The following are the tables generated in this section:
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+**
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+** yy_action[] A single table containing all actions.
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+** yy_lookahead[] A table containing the lookahead for each entry in
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+** yy_action. Used to detect hash collisions.
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+** yy_shift_ofst[] For each state, the offset into yy_action for
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+** shifting terminals.
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+** yy_reduce_ofst[] For each state, the offset into yy_action for
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+** shifting non-terminals after a reduce.
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+** yy_default[] Default action for each state.
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+**
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+*********** Begin parsing tables **********************************************/
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+%%
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+/********** End of lemon-generated parsing tables *****************************/
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+
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+/* The next table maps tokens (terminal symbols) into fallback tokens.
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+** If a construct like the following:
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+**
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+** %fallback ID X Y Z.
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+**
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+** appears in the grammar, then ID becomes a fallback token for X, Y,
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+** and Z. Whenever one of the tokens X, Y, or Z is input to the parser
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+** but it does not parse, the type of the token is changed to ID and
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+** the parse is retried before an error is thrown.
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+**
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+** This feature can be used, for example, to cause some keywords in a language
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+** to revert to identifiers if they keyword does not apply in the context where
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+** it appears.
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+*/
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+#ifdef YYFALLBACK
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+static const YYCODETYPE yyFallback[] = {
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+%%
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+};
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+#endif /* YYFALLBACK */
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+
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+/* The following structure represents a single element of the
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+** parser's stack. Information stored includes:
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+**
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+** + The state number for the parser at this level of the stack.
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+**
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+** + The value of the token stored at this level of the stack.
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+** (In other words, the "major" token.)
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+**
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+** + The semantic value stored at this level of the stack. This is
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+** the information used by the action routines in the grammar.
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+** It is sometimes called the "minor" token.
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+**
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+** After the "shift" half of a SHIFTREDUCE action, the stateno field
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+** actually contains the reduce action for the second half of the
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+** SHIFTREDUCE.
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+*/
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+struct yyStackEntry {
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+ YYACTIONTYPE stateno; /* The state-number, or reduce action in SHIFTREDUCE */
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+ YYCODETYPE major; /* The major token value. This is the code
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+ ** number for the token at this stack level */
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+ YYMINORTYPE minor; /* The user-supplied minor token value. This
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+ ** is the value of the token */
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+};
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+typedef struct yyStackEntry yyStackEntry;
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+
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+/* The state of the parser is completely contained in an instance of
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+** the following structure */
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+struct yyParser {
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+ yyStackEntry *yytos; /* Pointer to top element of the stack */
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+#ifdef YYTRACKMAXSTACKDEPTH
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+ int yyhwm; /* High-water mark of the stack */
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+#endif
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+#ifndef YYNOERRORRECOVERY
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+ int yyerrcnt; /* Shifts left before out of the error */
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+#endif
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+ ParseARG_SDECL /* A place to hold %extra_argument */
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+ ParseCTX_SDECL /* A place to hold %extra_context */
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+#if YYSTACKDEPTH<=0
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+ int yystksz; /* Current side of the stack */
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+ yyStackEntry *yystack; /* The parser's stack */
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+ yyStackEntry yystk0; /* First stack entry */
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+#else
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+ yyStackEntry yystack[YYSTACKDEPTH]; /* The parser's stack */
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+ yyStackEntry *yystackEnd; /* Last entry in the stack */
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+#endif
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+};
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+typedef struct yyParser yyParser;
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+
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+#ifndef NDEBUG
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+#include <stdio.h>
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+#include <assert.h>
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+static FILE *yyTraceFILE = 0;
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+static char *yyTracePrompt = 0;
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+#endif /* NDEBUG */
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+
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+#ifndef NDEBUG
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+/*
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+** Turn parser tracing on by giving a stream to which to write the trace
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+** and a prompt to preface each trace message. Tracing is turned off
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+** by making either argument NULL
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+**
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+** Inputs:
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+** <ul>
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+** <li> A FILE* to which trace output should be written.
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+** If NULL, then tracing is turned off.
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+** <li> A prefix string written at the beginning of every
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+** line of trace output. If NULL, then tracing is
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+** turned off.
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+** </ul>
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+**
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+** Outputs:
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+** None.
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+*/
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+void ParseTrace(FILE *TraceFILE, char *zTracePrompt){
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+ yyTraceFILE = TraceFILE;
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+ yyTracePrompt = zTracePrompt;
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+ if( yyTraceFILE==0 ) yyTracePrompt = 0;
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+ else if( yyTracePrompt==0 ) yyTraceFILE = 0;
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+}
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+#endif /* NDEBUG */
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+
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+#if defined(YYCOVERAGE) || !defined(NDEBUG)
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+/* For tracing shifts, the names of all terminals and nonterminals
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+** are required. The following table supplies these names */
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+static const char *const yyTokenName[] = {
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+%%
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+};
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+#endif /* defined(YYCOVERAGE) || !defined(NDEBUG) */
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+
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+#ifndef NDEBUG
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+/* For tracing reduce actions, the names of all rules are required.
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+*/
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+static const char *const yyRuleName[] = {
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+%%
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+};
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+#endif /* NDEBUG */
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+
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+
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+#if YYSTACKDEPTH<=0
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+/*
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+** Try to increase the size of the parser stack. Return the number
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+** of errors. Return 0 on success.
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+*/
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+static int yyGrowStack(yyParser *p){
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+ int newSize;
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+ int idx;
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+ yyStackEntry *pNew;
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+
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+ newSize = p->yystksz*2 + 100;
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+ idx = p->yytos ? (int)(p->yytos - p->yystack) : 0;
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+ if( p->yystack==&p->yystk0 ){
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+ pNew = malloc(newSize*sizeof(pNew[0]));
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+ if( pNew ) pNew[0] = p->yystk0;
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+ }else{
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+ pNew = realloc(p->yystack, newSize*sizeof(pNew[0]));
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+ }
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+ if( pNew ){
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+ p->yystack = pNew;
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+ p->yytos = &p->yystack[idx];
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+#ifndef NDEBUG
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+ if( yyTraceFILE ){
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+ fprintf(yyTraceFILE,"%sStack grows from %d to %d entries.\n",
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+ yyTracePrompt, p->yystksz, newSize);
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+ }
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+#endif
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+ p->yystksz = newSize;
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+ }
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+ return pNew==0;
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+}
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+#endif
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+
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+/* Datatype of the argument to the memory allocated passed as the
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+** second argument to ParseAlloc() below. This can be changed by
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+** putting an appropriate #define in the %include section of the input
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+** grammar.
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+*/
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+#ifndef YYMALLOCARGTYPE
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+# define YYMALLOCARGTYPE size_t
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+#endif
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+
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+/* Initialize a new parser that has already been allocated.
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+*/
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+void ParseInit(void *yypRawParser ParseCTX_PDECL){
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+ yyParser *yypParser = (yyParser*)yypRawParser;
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+ ParseCTX_STORE
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+#ifdef YYTRACKMAXSTACKDEPTH
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+ yypParser->yyhwm = 0;
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+#endif
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+#if YYSTACKDEPTH<=0
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+ yypParser->yytos = NULL;
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+ yypParser->yystack = NULL;
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+ yypParser->yystksz = 0;
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+ if( yyGrowStack(yypParser) ){
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+ yypParser->yystack = &yypParser->yystk0;
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+ yypParser->yystksz = 1;
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+ }
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+#endif
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+#ifndef YYNOERRORRECOVERY
|
|
|
|
+ yypParser->yyerrcnt = -1;
|
|
|
|
+#endif
|
|
|
|
+ yypParser->yytos = yypParser->yystack;
|
|
|
|
+ yypParser->yystack[0].stateno = 0;
|
|
|
|
+ yypParser->yystack[0].major = 0;
|
|
|
|
+#if YYSTACKDEPTH>0
|
|
|
|
+ yypParser->yystackEnd = &yypParser->yystack[YYSTACKDEPTH-1];
|
|
|
|
+#endif
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+#ifndef Parse_ENGINEALWAYSONSTACK
|
|
|
|
+/*
|
|
|
|
+** This function allocates a new parser.
|
|
|
|
+** The only argument is a pointer to a function which works like
|
|
|
|
+** malloc.
|
|
|
|
+**
|
|
|
|
+** Inputs:
|
|
|
|
+** A pointer to the function used to allocate memory.
|
|
|
|
+**
|
|
|
|
+** Outputs:
|
|
|
|
+** A pointer to a parser. This pointer is used in subsequent calls
|
|
|
|
+** to Parse and ParseFree.
|
|
|
|
+*/
|
|
|
|
+void *ParseAlloc(void *(*mallocProc)(YYMALLOCARGTYPE) ParseCTX_PDECL){
|
|
|
|
+ yyParser *yypParser;
|
|
|
|
+ yypParser = (yyParser*)(*mallocProc)( (YYMALLOCARGTYPE)sizeof(yyParser) );
|
|
|
|
+ if( yypParser ){
|
|
|
|
+ ParseCTX_STORE
|
|
|
|
+ ParseInit(yypParser ParseCTX_PARAM);
|
|
|
|
+ }
|
|
|
|
+ return (void*)yypParser;
|
|
|
|
+}
|
|
|
|
+#endif /* Parse_ENGINEALWAYSONSTACK */
|
|
|
|
+
|
|
|
|
+
|
|
|
|
+/* The following function deletes the "minor type" or semantic value
|
|
|
|
+** associated with a symbol. The symbol can be either a terminal
|
|
|
|
+** or nonterminal. "yymajor" is the symbol code, and "yypminor" is
|
|
|
|
+** a pointer to the value to be deleted. The code used to do the
|
|
|
|
+** deletions is derived from the %destructor and/or %token_destructor
|
|
|
|
+** directives of the input grammar.
|
|
|
|
+*/
|
|
|
|
+static void yy_destructor(
|
|
|
|
+ yyParser *yypParser, /* The parser */
|
|
|
|
+ YYCODETYPE yymajor, /* Type code for object to destroy */
|
|
|
|
+ YYMINORTYPE *yypminor /* The object to be destroyed */
|
|
|
|
+){
|
|
|
|
+ ParseARG_FETCH
|
|
|
|
+ ParseCTX_FETCH
|
|
|
|
+ switch( yymajor ){
|
|
|
|
+ /* Here is inserted the actions which take place when a
|
|
|
|
+ ** terminal or non-terminal is destroyed. This can happen
|
|
|
|
+ ** when the symbol is popped from the stack during a
|
|
|
|
+ ** reduce or during error processing or when a parser is
|
|
|
|
+ ** being destroyed before it is finished parsing.
|
|
|
|
+ **
|
|
|
|
+ ** Note: during a reduce, the only symbols destroyed are those
|
|
|
|
+ ** which appear on the RHS of the rule, but which are *not* used
|
|
|
|
+ ** inside the C code.
|
|
|
|
+ */
|
|
|
|
+/********* Begin destructor definitions ***************************************/
|
|
|
|
+%%
|
|
|
|
+/********* End destructor definitions *****************************************/
|
|
|
|
+ default: break; /* If no destructor action specified: do nothing */
|
|
|
|
+ }
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** Pop the parser's stack once.
|
|
|
|
+**
|
|
|
|
+** If there is a destructor routine associated with the token which
|
|
|
|
+** is popped from the stack, then call it.
|
|
|
|
+*/
|
|
|
|
+static void yy_pop_parser_stack(yyParser *pParser){
|
|
|
|
+ yyStackEntry *yytos;
|
|
|
|
+ assert( pParser->yytos!=0 );
|
|
|
|
+ assert( pParser->yytos > pParser->yystack );
|
|
|
|
+ yytos = pParser->yytos--;
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ fprintf(yyTraceFILE,"%sPopping %s\n",
|
|
|
|
+ yyTracePrompt,
|
|
|
|
+ yyTokenName[yytos->major]);
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+ yy_destructor(pParser, yytos->major, &yytos->minor);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** Clear all secondary memory allocations from the parser
|
|
|
|
+*/
|
|
|
|
+void ParseFinalize(void *p){
|
|
|
|
+ yyParser *pParser = (yyParser*)p;
|
|
|
|
+ while( pParser->yytos>pParser->yystack ) yy_pop_parser_stack(pParser);
|
|
|
|
+#if YYSTACKDEPTH<=0
|
|
|
|
+ if( pParser->yystack!=&pParser->yystk0 ) free(pParser->yystack);
|
|
|
|
+#endif
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+#ifndef Parse_ENGINEALWAYSONSTACK
|
|
|
|
+/*
|
|
|
|
+** Deallocate and destroy a parser. Destructors are called for
|
|
|
|
+** all stack elements before shutting the parser down.
|
|
|
|
+**
|
|
|
|
+** If the YYPARSEFREENEVERNULL macro exists (for example because it
|
|
|
|
+** is defined in a %include section of the input grammar) then it is
|
|
|
|
+** assumed that the input pointer is never NULL.
|
|
|
|
+*/
|
|
|
|
+void ParseFree(
|
|
|
|
+ void *p, /* The parser to be deleted */
|
|
|
|
+ void (*freeProc)(void*) /* Function used to reclaim memory */
|
|
|
|
+){
|
|
|
|
+#ifndef YYPARSEFREENEVERNULL
|
|
|
|
+ if( p==0 ) return;
|
|
|
|
+#endif
|
|
|
|
+ ParseFinalize(p);
|
|
|
|
+ (*freeProc)(p);
|
|
|
|
+}
|
|
|
|
+#endif /* Parse_ENGINEALWAYSONSTACK */
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** Return the peak depth of the stack for a parser.
|
|
|
|
+*/
|
|
|
|
+#ifdef YYTRACKMAXSTACKDEPTH
|
|
|
|
+int ParseStackPeak(void *p){
|
|
|
|
+ yyParser *pParser = (yyParser*)p;
|
|
|
|
+ return pParser->yyhwm;
|
|
|
|
+}
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+/* This array of booleans keeps track of the parser statement
|
|
|
|
+** coverage. The element yycoverage[X][Y] is set when the parser
|
|
|
|
+** is in state X and has a lookahead token Y. In a well-tested
|
|
|
|
+** systems, every element of this matrix should end up being set.
|
|
|
|
+*/
|
|
|
|
+#if defined(YYCOVERAGE)
|
|
|
|
+static unsigned char yycoverage[YYNSTATE][YYNTOKEN];
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** Write into out a description of every state/lookahead combination that
|
|
|
|
+**
|
|
|
|
+** (1) has not been used by the parser, and
|
|
|
|
+** (2) is not a syntax error.
|
|
|
|
+**
|
|
|
|
+** Return the number of missed state/lookahead combinations.
|
|
|
|
+*/
|
|
|
|
+#if defined(YYCOVERAGE)
|
|
|
|
+int ParseCoverage(FILE *out){
|
|
|
|
+ int stateno, iLookAhead, i;
|
|
|
|
+ int nMissed = 0;
|
|
|
|
+ for(stateno=0; stateno<YYNSTATE; stateno++){
|
|
|
|
+ i = yy_shift_ofst[stateno];
|
|
|
|
+ for(iLookAhead=0; iLookAhead<YYNTOKEN; iLookAhead++){
|
|
|
|
+ if( yy_lookahead[i+iLookAhead]!=iLookAhead ) continue;
|
|
|
|
+ if( yycoverage[stateno][iLookAhead]==0 ) nMissed++;
|
|
|
|
+ if( out ){
|
|
|
|
+ fprintf(out,"State %d lookahead %s %s\n", stateno,
|
|
|
|
+ yyTokenName[iLookAhead],
|
|
|
|
+ yycoverage[stateno][iLookAhead] ? "ok" : "missed");
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ return nMissed;
|
|
|
|
+}
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** Find the appropriate action for a parser given the terminal
|
|
|
|
+** look-ahead token iLookAhead.
|
|
|
|
+*/
|
|
|
|
+static YYACTIONTYPE yy_find_shift_action(
|
|
|
|
+ YYCODETYPE iLookAhead, /* The look-ahead token */
|
|
|
|
+ YYACTIONTYPE stateno /* Current state number */
|
|
|
|
+){
|
|
|
|
+ int i;
|
|
|
|
+
|
|
|
|
+ if( stateno>YY_MAX_SHIFT ) return stateno;
|
|
|
|
+ assert( stateno <= YY_SHIFT_COUNT );
|
|
|
|
+#if defined(YYCOVERAGE)
|
|
|
|
+ yycoverage[stateno][iLookAhead] = 1;
|
|
|
|
+#endif
|
|
|
|
+ do{
|
|
|
|
+ i = yy_shift_ofst[stateno];
|
|
|
|
+ assert( i>=0 );
|
|
|
|
+ assert( i<=YY_ACTTAB_COUNT );
|
|
|
|
+ assert( i+YYNTOKEN<=(int)YY_NLOOKAHEAD );
|
|
|
|
+ assert( iLookAhead!=YYNOCODE );
|
|
|
|
+ assert( iLookAhead < YYNTOKEN );
|
|
|
|
+ i += iLookAhead;
|
|
|
|
+ assert( i<(int)YY_NLOOKAHEAD );
|
|
|
|
+ if( yy_lookahead[i]!=iLookAhead ){
|
|
|
|
+#ifdef YYFALLBACK
|
|
|
|
+ YYCODETYPE iFallback; /* Fallback token */
|
|
|
|
+ assert( iLookAhead<sizeof(yyFallback)/sizeof(yyFallback[0]) );
|
|
|
|
+ iFallback = yyFallback[iLookAhead];
|
|
|
|
+ if( iFallback!=0 ){
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ fprintf(yyTraceFILE, "%sFALLBACK %s => %s\n",
|
|
|
|
+ yyTracePrompt, yyTokenName[iLookAhead], yyTokenName[iFallback]);
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+ assert( yyFallback[iFallback]==0 ); /* Fallback loop must terminate */
|
|
|
|
+ iLookAhead = iFallback;
|
|
|
|
+ continue;
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+#ifdef YYWILDCARD
|
|
|
|
+ {
|
|
|
|
+ int j = i - iLookAhead + YYWILDCARD;
|
|
|
|
+ assert( j<(int)(sizeof(yy_lookahead)/sizeof(yy_lookahead[0])) );
|
|
|
|
+ if( yy_lookahead[j]==YYWILDCARD && iLookAhead>0 ){
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ fprintf(yyTraceFILE, "%sWILDCARD %s => %s\n",
|
|
|
|
+ yyTracePrompt, yyTokenName[iLookAhead],
|
|
|
|
+ yyTokenName[YYWILDCARD]);
|
|
|
|
+ }
|
|
|
|
+#endif /* NDEBUG */
|
|
|
|
+ return yy_action[j];
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+#endif /* YYWILDCARD */
|
|
|
|
+ return yy_default[stateno];
|
|
|
|
+ }else{
|
|
|
|
+ assert( i>=0 && i<(int)(sizeof(yy_action)/sizeof(yy_action[0])) );
|
|
|
|
+ return yy_action[i];
|
|
|
|
+ }
|
|
|
|
+ }while(1);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** Find the appropriate action for a parser given the non-terminal
|
|
|
|
+** look-ahead token iLookAhead.
|
|
|
|
+*/
|
|
|
|
+static YYACTIONTYPE yy_find_reduce_action(
|
|
|
|
+ YYACTIONTYPE stateno, /* Current state number */
|
|
|
|
+ YYCODETYPE iLookAhead /* The look-ahead token */
|
|
|
|
+){
|
|
|
|
+ int i;
|
|
|
|
+#ifdef YYERRORSYMBOL
|
|
|
|
+ if( stateno>YY_REDUCE_COUNT ){
|
|
|
|
+ return yy_default[stateno];
|
|
|
|
+ }
|
|
|
|
+#else
|
|
|
|
+ assert( stateno<=YY_REDUCE_COUNT );
|
|
|
|
+#endif
|
|
|
|
+ i = yy_reduce_ofst[stateno];
|
|
|
|
+ assert( iLookAhead!=YYNOCODE );
|
|
|
|
+ i += iLookAhead;
|
|
|
|
+#ifdef YYERRORSYMBOL
|
|
|
|
+ if( i<0 || i>=YY_ACTTAB_COUNT || yy_lookahead[i]!=iLookAhead ){
|
|
|
|
+ return yy_default[stateno];
|
|
|
|
+ }
|
|
|
|
+#else
|
|
|
|
+ assert( i>=0 && i<YY_ACTTAB_COUNT );
|
|
|
|
+ assert( yy_lookahead[i]==iLookAhead );
|
|
|
|
+#endif
|
|
|
|
+ return yy_action[i];
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** The following routine is called if the stack overflows.
|
|
|
|
+*/
|
|
|
|
+static void yyStackOverflow(yyParser *yypParser){
|
|
|
|
+ ParseARG_FETCH
|
|
|
|
+ ParseCTX_FETCH
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ fprintf(yyTraceFILE,"%sStack Overflow!\n",yyTracePrompt);
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+ while( yypParser->yytos>yypParser->yystack ) yy_pop_parser_stack(yypParser);
|
|
|
|
+ /* Here code is inserted which will execute if the parser
|
|
|
|
+ ** stack every overflows */
|
|
|
|
+/******** Begin %stack_overflow code ******************************************/
|
|
|
|
+%%
|
|
|
|
+/******** End %stack_overflow code ********************************************/
|
|
|
|
+ ParseARG_STORE /* Suppress warning about unused %extra_argument var */
|
|
|
|
+ ParseCTX_STORE
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** Print tracing information for a SHIFT action
|
|
|
|
+*/
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+static void yyTraceShift(yyParser *yypParser, int yyNewState, const char *zTag){
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ if( yyNewState<YYNSTATE ){
|
|
|
|
+ fprintf(yyTraceFILE,"%s%s '%s', go to state %d\n",
|
|
|
|
+ yyTracePrompt, zTag, yyTokenName[yypParser->yytos->major],
|
|
|
|
+ yyNewState);
|
|
|
|
+ }else{
|
|
|
|
+ fprintf(yyTraceFILE,"%s%s '%s', pending reduce %d\n",
|
|
|
|
+ yyTracePrompt, zTag, yyTokenName[yypParser->yytos->major],
|
|
|
|
+ yyNewState - YY_MIN_REDUCE);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+}
|
|
|
|
+#else
|
|
|
|
+# define yyTraceShift(X,Y,Z)
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** Perform a shift action.
|
|
|
|
+*/
|
|
|
|
+static void yy_shift(
|
|
|
|
+ yyParser *yypParser, /* The parser to be shifted */
|
|
|
|
+ YYACTIONTYPE yyNewState, /* The new state to shift in */
|
|
|
|
+ YYCODETYPE yyMajor, /* The major token to shift in */
|
|
|
|
+ ParseTOKENTYPE yyMinor /* The minor token to shift in */
|
|
|
|
+){
|
|
|
|
+ yyStackEntry *yytos;
|
|
|
|
+ yypParser->yytos++;
|
|
|
|
+#ifdef YYTRACKMAXSTACKDEPTH
|
|
|
|
+ if( (int)(yypParser->yytos - yypParser->yystack)>yypParser->yyhwm ){
|
|
|
|
+ yypParser->yyhwm++;
|
|
|
|
+ assert( yypParser->yyhwm == (int)(yypParser->yytos - yypParser->yystack) );
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+#if YYSTACKDEPTH>0
|
|
|
|
+ if( yypParser->yytos>yypParser->yystackEnd ){
|
|
|
|
+ yypParser->yytos--;
|
|
|
|
+ yyStackOverflow(yypParser);
|
|
|
|
+ return;
|
|
|
|
+ }
|
|
|
|
+#else
|
|
|
|
+ if( yypParser->yytos>=&yypParser->yystack[yypParser->yystksz] ){
|
|
|
|
+ if( yyGrowStack(yypParser) ){
|
|
|
|
+ yypParser->yytos--;
|
|
|
|
+ yyStackOverflow(yypParser);
|
|
|
|
+ return;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+ if( yyNewState > YY_MAX_SHIFT ){
|
|
|
|
+ yyNewState += YY_MIN_REDUCE - YY_MIN_SHIFTREDUCE;
|
|
|
|
+ }
|
|
|
|
+ yytos = yypParser->yytos;
|
|
|
|
+ yytos->stateno = yyNewState;
|
|
|
|
+ yytos->major = yyMajor;
|
|
|
|
+ yytos->minor.yy0 = yyMinor;
|
|
|
|
+ yyTraceShift(yypParser, yyNewState, "Shift");
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/* For rule J, yyRuleInfoLhs[J] contains the symbol on the left-hand side
|
|
|
|
+** of that rule */
|
|
|
|
+static const YYCODETYPE yyRuleInfoLhs[] = {
|
|
|
|
+%%
|
|
|
|
+};
|
|
|
|
+
|
|
|
|
+/* For rule J, yyRuleInfoNRhs[J] contains the negative of the number
|
|
|
|
+** of symbols on the right-hand side of that rule. */
|
|
|
|
+static const signed char yyRuleInfoNRhs[] = {
|
|
|
|
+%%
|
|
|
|
+};
|
|
|
|
+
|
|
|
|
+static void yy_accept(yyParser*); /* Forward Declaration */
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** Perform a reduce action and the shift that must immediately
|
|
|
|
+** follow the reduce.
|
|
|
|
+**
|
|
|
|
+** The yyLookahead and yyLookaheadToken parameters provide reduce actions
|
|
|
|
+** access to the lookahead token (if any). The yyLookahead will be YYNOCODE
|
|
|
|
+** if the lookahead token has already been consumed. As this procedure is
|
|
|
|
+** only called from one place, optimizing compilers will in-line it, which
|
|
|
|
+** means that the extra parameters have no performance impact.
|
|
|
|
+*/
|
|
|
|
+static YYACTIONTYPE yy_reduce(
|
|
|
|
+ yyParser *yypParser, /* The parser */
|
|
|
|
+ unsigned int yyruleno, /* Number of the rule by which to reduce */
|
|
|
|
+ int yyLookahead, /* Lookahead token, or YYNOCODE if none */
|
|
|
|
+ ParseTOKENTYPE yyLookaheadToken /* Value of the lookahead token */
|
|
|
|
+ ParseCTX_PDECL /* %extra_context */
|
|
|
|
+){
|
|
|
|
+ int yygoto; /* The next state */
|
|
|
|
+ YYACTIONTYPE yyact; /* The next action */
|
|
|
|
+ yyStackEntry *yymsp; /* The top of the parser's stack */
|
|
|
|
+ int yysize; /* Amount to pop the stack */
|
|
|
|
+ ParseARG_FETCH
|
|
|
|
+ (void)yyLookahead;
|
|
|
|
+ (void)yyLookaheadToken;
|
|
|
|
+ yymsp = yypParser->yytos;
|
|
|
|
+ assert( yyruleno<(int)(sizeof(yyRuleName)/sizeof(yyRuleName[0])) );
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ yysize = yyRuleInfoNRhs[yyruleno];
|
|
|
|
+ if( yysize ){
|
|
|
|
+ fprintf(yyTraceFILE, "%sReduce %d [%s]%s, pop back to state %d.\n",
|
|
|
|
+ yyTracePrompt,
|
|
|
|
+ yyruleno, yyRuleName[yyruleno],
|
|
|
|
+ yyruleno<YYNRULE_WITH_ACTION ? "" : " without external action",
|
|
|
|
+ yymsp[yysize].stateno);
|
|
|
|
+ }else{
|
|
|
|
+ fprintf(yyTraceFILE, "%sReduce %d [%s]%s.\n",
|
|
|
|
+ yyTracePrompt, yyruleno, yyRuleName[yyruleno],
|
|
|
|
+ yyruleno<YYNRULE_WITH_ACTION ? "" : " without external action");
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+#endif /* NDEBUG */
|
|
|
|
+
|
|
|
|
+ /* Check that the stack is large enough to grow by a single entry
|
|
|
|
+ ** if the RHS of the rule is empty. This ensures that there is room
|
|
|
|
+ ** enough on the stack to push the LHS value */
|
|
|
|
+ if( yyRuleInfoNRhs[yyruleno]==0 ){
|
|
|
|
+#ifdef YYTRACKMAXSTACKDEPTH
|
|
|
|
+ if( (int)(yypParser->yytos - yypParser->yystack)>yypParser->yyhwm ){
|
|
|
|
+ yypParser->yyhwm++;
|
|
|
|
+ assert( yypParser->yyhwm == (int)(yypParser->yytos - yypParser->yystack));
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+#if YYSTACKDEPTH>0
|
|
|
|
+ if( yypParser->yytos>=yypParser->yystackEnd ){
|
|
|
|
+ yyStackOverflow(yypParser);
|
|
|
|
+ /* The call to yyStackOverflow() above pops the stack until it is
|
|
|
|
+ ** empty, causing the main parser loop to exit. So the return value
|
|
|
|
+ ** is never used and does not matter. */
|
|
|
|
+ return 0;
|
|
|
|
+ }
|
|
|
|
+#else
|
|
|
|
+ if( yypParser->yytos>=&yypParser->yystack[yypParser->yystksz-1] ){
|
|
|
|
+ if( yyGrowStack(yypParser) ){
|
|
|
|
+ yyStackOverflow(yypParser);
|
|
|
|
+ /* The call to yyStackOverflow() above pops the stack until it is
|
|
|
|
+ ** empty, causing the main parser loop to exit. So the return value
|
|
|
|
+ ** is never used and does not matter. */
|
|
|
|
+ return 0;
|
|
|
|
+ }
|
|
|
|
+ yymsp = yypParser->yytos;
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ switch( yyruleno ){
|
|
|
|
+ /* Beginning here are the reduction cases. A typical example
|
|
|
|
+ ** follows:
|
|
|
|
+ ** case 0:
|
|
|
|
+ ** #line <lineno> <grammarfile>
|
|
|
|
+ ** { ... } // User supplied code
|
|
|
|
+ ** #line <lineno> <thisfile>
|
|
|
|
+ ** break;
|
|
|
|
+ */
|
|
|
|
+/********** Begin reduce actions **********************************************/
|
|
|
|
+%%
|
|
|
|
+/********** End reduce actions ************************************************/
|
|
|
|
+ };
|
|
|
|
+ assert( yyruleno<sizeof(yyRuleInfoLhs)/sizeof(yyRuleInfoLhs[0]) );
|
|
|
|
+ yygoto = yyRuleInfoLhs[yyruleno];
|
|
|
|
+ yysize = yyRuleInfoNRhs[yyruleno];
|
|
|
|
+ yyact = yy_find_reduce_action(yymsp[yysize].stateno,(YYCODETYPE)yygoto);
|
|
|
|
+
|
|
|
|
+ /* There are no SHIFTREDUCE actions on nonterminals because the table
|
|
|
|
+ ** generator has simplified them to pure REDUCE actions. */
|
|
|
|
+ assert( !(yyact>YY_MAX_SHIFT && yyact<=YY_MAX_SHIFTREDUCE) );
|
|
|
|
+
|
|
|
|
+ /* It is not possible for a REDUCE to be followed by an error */
|
|
|
|
+ assert( yyact!=YY_ERROR_ACTION );
|
|
|
|
+
|
|
|
|
+ yymsp += yysize+1;
|
|
|
|
+ yypParser->yytos = yymsp;
|
|
|
|
+ yymsp->stateno = (YYACTIONTYPE)yyact;
|
|
|
|
+ yymsp->major = (YYCODETYPE)yygoto;
|
|
|
|
+ yyTraceShift(yypParser, yyact, "... then shift");
|
|
|
|
+ return yyact;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** The following code executes when the parse fails
|
|
|
|
+*/
|
|
|
|
+#ifndef YYNOERRORRECOVERY
|
|
|
|
+static void yy_parse_failed(
|
|
|
|
+ yyParser *yypParser /* The parser */
|
|
|
|
+){
|
|
|
|
+ ParseARG_FETCH
|
|
|
|
+ ParseCTX_FETCH
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ fprintf(yyTraceFILE,"%sFail!\n",yyTracePrompt);
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+ while( yypParser->yytos>yypParser->yystack ) yy_pop_parser_stack(yypParser);
|
|
|
|
+ /* Here code is inserted which will be executed whenever the
|
|
|
|
+ ** parser fails */
|
|
|
|
+/************ Begin %parse_failure code ***************************************/
|
|
|
|
+%%
|
|
|
|
+/************ End %parse_failure code *****************************************/
|
|
|
|
+ ParseARG_STORE /* Suppress warning about unused %extra_argument variable */
|
|
|
|
+ ParseCTX_STORE
|
|
|
|
+}
|
|
|
|
+#endif /* YYNOERRORRECOVERY */
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** The following code executes when a syntax error first occurs.
|
|
|
|
+*/
|
|
|
|
+static void yy_syntax_error(
|
|
|
|
+ yyParser *yypParser, /* The parser */
|
|
|
|
+ int yymajor, /* The major type of the error token */
|
|
|
|
+ ParseTOKENTYPE yyminor /* The minor type of the error token */
|
|
|
|
+){
|
|
|
|
+ ParseARG_FETCH
|
|
|
|
+ ParseCTX_FETCH
|
|
|
|
+#define TOKEN yyminor
|
|
|
|
+/************ Begin %syntax_error code ****************************************/
|
|
|
|
+%%
|
|
|
|
+/************ End %syntax_error code ******************************************/
|
|
|
|
+ ParseARG_STORE /* Suppress warning about unused %extra_argument variable */
|
|
|
|
+ ParseCTX_STORE
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** The following is executed when the parser accepts
|
|
|
|
+*/
|
|
|
|
+static void yy_accept(
|
|
|
|
+ yyParser *yypParser /* The parser */
|
|
|
|
+){
|
|
|
|
+ ParseARG_FETCH
|
|
|
|
+ ParseCTX_FETCH
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ fprintf(yyTraceFILE,"%sAccept!\n",yyTracePrompt);
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+#ifndef YYNOERRORRECOVERY
|
|
|
|
+ yypParser->yyerrcnt = -1;
|
|
|
|
+#endif
|
|
|
|
+ assert( yypParser->yytos==yypParser->yystack );
|
|
|
|
+ /* Here code is inserted which will be executed whenever the
|
|
|
|
+ ** parser accepts */
|
|
|
|
+/*********** Begin %parse_accept code *****************************************/
|
|
|
|
+%%
|
|
|
|
+/*********** End %parse_accept code *******************************************/
|
|
|
|
+ ParseARG_STORE /* Suppress warning about unused %extra_argument variable */
|
|
|
|
+ ParseCTX_STORE
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/* The main parser program.
|
|
|
|
+** The first argument is a pointer to a structure obtained from
|
|
|
|
+** "ParseAlloc" which describes the current state of the parser.
|
|
|
|
+** The second argument is the major token number. The third is
|
|
|
|
+** the minor token. The fourth optional argument is whatever the
|
|
|
|
+** user wants (and specified in the grammar) and is available for
|
|
|
|
+** use by the action routines.
|
|
|
|
+**
|
|
|
|
+** Inputs:
|
|
|
|
+** <ul>
|
|
|
|
+** <li> A pointer to the parser (an opaque structure.)
|
|
|
|
+** <li> The major token number.
|
|
|
|
+** <li> The minor token number.
|
|
|
|
+** <li> An option argument of a grammar-specified type.
|
|
|
|
+** </ul>
|
|
|
|
+**
|
|
|
|
+** Outputs:
|
|
|
|
+** None.
|
|
|
|
+*/
|
|
|
|
+void Parse(
|
|
|
|
+ void *yyp, /* The parser */
|
|
|
|
+ int yymajor, /* The major token code number */
|
|
|
|
+ ParseTOKENTYPE yyminor /* The value for the token */
|
|
|
|
+ ParseARG_PDECL /* Optional %extra_argument parameter */
|
|
|
|
+){
|
|
|
|
+ YYMINORTYPE yyminorunion;
|
|
|
|
+ YYACTIONTYPE yyact; /* The parser action. */
|
|
|
|
+#if !defined(YYERRORSYMBOL) && !defined(YYNOERRORRECOVERY)
|
|
|
|
+ int yyendofinput; /* True if we are at the end of input */
|
|
|
|
+#endif
|
|
|
|
+#ifdef YYERRORSYMBOL
|
|
|
|
+ int yyerrorhit = 0; /* True if yymajor has invoked an error */
|
|
|
|
+#endif
|
|
|
|
+ yyParser *yypParser = (yyParser*)yyp; /* The parser */
|
|
|
|
+ ParseCTX_FETCH
|
|
|
|
+ ParseARG_STORE
|
|
|
|
+
|
|
|
|
+ assert( yypParser->yytos!=0 );
|
|
|
|
+#if !defined(YYERRORSYMBOL) && !defined(YYNOERRORRECOVERY)
|
|
|
|
+ yyendofinput = (yymajor==0);
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+ yyact = yypParser->yytos->stateno;
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ if( yyact < YY_MIN_REDUCE ){
|
|
|
|
+ fprintf(yyTraceFILE,"%sInput '%s' in state %d\n",
|
|
|
|
+ yyTracePrompt,yyTokenName[yymajor],yyact);
|
|
|
|
+ }else{
|
|
|
|
+ fprintf(yyTraceFILE,"%sInput '%s' with pending reduce %d\n",
|
|
|
|
+ yyTracePrompt,yyTokenName[yymajor],yyact-YY_MIN_REDUCE);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+ do{
|
|
|
|
+ assert( yyact==yypParser->yytos->stateno );
|
|
|
|
+ yyact = yy_find_shift_action((YYCODETYPE)yymajor,yyact);
|
|
|
|
+ if( yyact >= YY_MIN_REDUCE ){
|
|
|
|
+ yyact = yy_reduce(yypParser,yyact-YY_MIN_REDUCE,yymajor,
|
|
|
|
+ yyminor ParseCTX_PARAM);
|
|
|
|
+ }else if( yyact <= YY_MAX_SHIFTREDUCE ){
|
|
|
|
+ yy_shift(yypParser,yyact,(YYCODETYPE)yymajor,yyminor);
|
|
|
|
+#ifndef YYNOERRORRECOVERY
|
|
|
|
+ yypParser->yyerrcnt--;
|
|
|
|
+#endif
|
|
|
|
+ break;
|
|
|
|
+ }else if( yyact==YY_ACCEPT_ACTION ){
|
|
|
|
+ yypParser->yytos--;
|
|
|
|
+ yy_accept(yypParser);
|
|
|
|
+ return;
|
|
|
|
+ }else{
|
|
|
|
+ assert( yyact == YY_ERROR_ACTION );
|
|
|
|
+ yyminorunion.yy0 = yyminor;
|
|
|
|
+#ifdef YYERRORSYMBOL
|
|
|
|
+ int yymx;
|
|
|
|
+#endif
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ fprintf(yyTraceFILE,"%sSyntax Error!\n",yyTracePrompt);
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+#ifdef YYERRORSYMBOL
|
|
|
|
+ /* A syntax error has occurred.
|
|
|
|
+ ** The response to an error depends upon whether or not the
|
|
|
|
+ ** grammar defines an error token "ERROR".
|
|
|
|
+ **
|
|
|
|
+ ** This is what we do if the grammar does define ERROR:
|
|
|
|
+ **
|
|
|
|
+ ** * Call the %syntax_error function.
|
|
|
|
+ **
|
|
|
|
+ ** * Begin popping the stack until we enter a state where
|
|
|
|
+ ** it is legal to shift the error symbol, then shift
|
|
|
|
+ ** the error symbol.
|
|
|
|
+ **
|
|
|
|
+ ** * Set the error count to three.
|
|
|
|
+ **
|
|
|
|
+ ** * Begin accepting and shifting new tokens. No new error
|
|
|
|
+ ** processing will occur until three tokens have been
|
|
|
|
+ ** shifted successfully.
|
|
|
|
+ **
|
|
|
|
+ */
|
|
|
|
+ if( yypParser->yyerrcnt<0 ){
|
|
|
|
+ yy_syntax_error(yypParser,yymajor,yyminor);
|
|
|
|
+ }
|
|
|
|
+ yymx = yypParser->yytos->major;
|
|
|
|
+ if( yymx==YYERRORSYMBOL || yyerrorhit ){
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ fprintf(yyTraceFILE,"%sDiscard input token %s\n",
|
|
|
|
+ yyTracePrompt,yyTokenName[yymajor]);
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+ yy_destructor(yypParser, (YYCODETYPE)yymajor, &yyminorunion);
|
|
|
|
+ yymajor = YYNOCODE;
|
|
|
|
+ }else{
|
|
|
|
+ while( yypParser->yytos >= yypParser->yystack
|
|
|
|
+ && (yyact = yy_find_reduce_action(
|
|
|
|
+ yypParser->yytos->stateno,
|
|
|
|
+ YYERRORSYMBOL)) > YY_MAX_SHIFTREDUCE
|
|
|
|
+ ){
|
|
|
|
+ yy_pop_parser_stack(yypParser);
|
|
|
|
+ }
|
|
|
|
+ if( yypParser->yytos < yypParser->yystack || yymajor==0 ){
|
|
|
|
+ yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
|
|
|
|
+ yy_parse_failed(yypParser);
|
|
|
|
+#ifndef YYNOERRORRECOVERY
|
|
|
|
+ yypParser->yyerrcnt = -1;
|
|
|
|
+#endif
|
|
|
|
+ yymajor = YYNOCODE;
|
|
|
|
+ }else if( yymx!=YYERRORSYMBOL ){
|
|
|
|
+ yy_shift(yypParser,yyact,YYERRORSYMBOL,yyminor);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ yypParser->yyerrcnt = 3;
|
|
|
|
+ yyerrorhit = 1;
|
|
|
|
+ if( yymajor==YYNOCODE ) break;
|
|
|
|
+ yyact = yypParser->yytos->stateno;
|
|
|
|
+#elif defined(YYNOERRORRECOVERY)
|
|
|
|
+ /* If the YYNOERRORRECOVERY macro is defined, then do not attempt to
|
|
|
|
+ ** do any kind of error recovery. Instead, simply invoke the syntax
|
|
|
|
+ ** error routine and continue going as if nothing had happened.
|
|
|
|
+ **
|
|
|
|
+ ** Applications can set this macro (for example inside %include) if
|
|
|
|
+ ** they intend to abandon the parse upon the first syntax error seen.
|
|
|
|
+ */
|
|
|
|
+ yy_syntax_error(yypParser,yymajor, yyminor);
|
|
|
|
+ yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
|
|
|
|
+ break;
|
|
|
|
+#else /* YYERRORSYMBOL is not defined */
|
|
|
|
+ /* This is what we do if the grammar does not define ERROR:
|
|
|
|
+ **
|
|
|
|
+ ** * Report an error message, and throw away the input token.
|
|
|
|
+ **
|
|
|
|
+ ** * If the input token is $, then fail the parse.
|
|
|
|
+ **
|
|
|
|
+ ** As before, subsequent error messages are suppressed until
|
|
|
|
+ ** three input tokens have been successfully shifted.
|
|
|
|
+ */
|
|
|
|
+ if( yypParser->yyerrcnt<=0 ){
|
|
|
|
+ yy_syntax_error(yypParser,yymajor, yyminor);
|
|
|
|
+ }
|
|
|
|
+ yypParser->yyerrcnt = 3;
|
|
|
|
+ yy_destructor(yypParser,(YYCODETYPE)yymajor,&yyminorunion);
|
|
|
|
+ if( yyendofinput ){
|
|
|
|
+ yy_parse_failed(yypParser);
|
|
|
|
+#ifndef YYNOERRORRECOVERY
|
|
|
|
+ yypParser->yyerrcnt = -1;
|
|
|
|
+#endif
|
|
|
|
+ }
|
|
|
|
+ break;
|
|
|
|
+#endif
|
|
|
|
+ }
|
|
|
|
+ }while( yypParser->yytos>yypParser->yystack );
|
|
|
|
+#ifndef NDEBUG
|
|
|
|
+ if( yyTraceFILE ){
|
|
|
|
+ yyStackEntry *i;
|
|
|
|
+ char cDiv = '[';
|
|
|
|
+ fprintf(yyTraceFILE,"%sReturn. Stack=",yyTracePrompt);
|
|
|
|
+ for(i=&yypParser->yystack[1]; i<=yypParser->yytos; i++){
|
|
|
|
+ fprintf(yyTraceFILE,"%c%s", cDiv, yyTokenName[i->major]);
|
|
|
|
+ cDiv = ' ';
|
|
|
|
+ }
|
|
|
|
+ fprintf(yyTraceFILE,"]\n");
|
|
|
|
+ }
|
|
|
|
+#endif
|
|
|
|
+ return;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+** Return the fallback token corresponding to canonical token iToken, or
|
|
|
|
+** 0 if iToken has no fallback.
|
|
|
|
+*/
|
|
|
|
+int ParseFallback(int iToken){
|
|
|
|
+#ifdef YYFALLBACK
|
|
|
|
+ assert( iToken<(int)(sizeof(yyFallback)/sizeof(yyFallback[0])) );
|
|
|
|
+ return yyFallback[iToken];
|
|
|
|
+#else
|
|
|
|
+ (void)iToken;
|
|
|
|
+ return 0;
|
|
|
|
+#endif
|
|
|
|
+}
|