%# -*-C-*- vi: set ft=c:

%# This file is processed in several stages.

%# Here are the stages, as best as I can describe:

%#

%#   1. flex.skl is processed through GNU m4 during the

%#      pre-compilation stage of flex. Only macros starting

%#      with `m4preproc_' are processed, and quoting is normal.

%#

%#   2. The preprocessed skeleton is translated verbatim into a

%#      C array, saved as "skel.c" and compiled into the flex binary.

%#

%#   3. At runtime, the skeleton is generated and filtered (again)

%#      through m4. Macros beginning with `m4_' will be processed.

%#      The quoting is "[[" and "]]" so we don't interfere with

%#      user code.

%# 

%# All generate macros for the m4 stage contain the text "m4" or "M4"

%# in them. This is to distinguish them from CPP macros.

%# The exception to this rule is YY_G, which is an m4 macro, 

%# but it needs to be remain short because it is used everywhere.

%#

/* A lexical scanner generated by flex */

%#  Macros for preproc stage.

m4preproc_changecom

%# Macros for runtime processing stage.

m4_changecom

m4_changequote

m4_changequote([[, ]])

%# 

%# Lines in this skeleton starting with a "%" character are "control lines"

%# and affect the generation of the scanner. The possible control codes are

%# listed and processed in misc.c.

%#

%#   %#  -  A comment. The current line is omitted from the generated scanner.

%#   %if-c++-only  -  The following lines are printed for C++ scanners ONLY.

%#   %if-c-only    -  The following lines are NOT printed for C++ scanners.

%#   %if-c-or-c++  -  The following lines are printed in BOTH C and C++ scanners.

%#   %if-reentrant     - Print for reentrant scanners.(push)

%#   %if-not-reentrant - Print for non-reentrant scanners. (push)

%#   %if-bison-bridge  - Print for bison-bridge. (push)

%#   %if-not-bison-bridge  - Print for non-bison-bridge. (push)

%#   %endif        - pop from the previous if code.

%#   %%  -  A stop-point, where code is inserted by flex.

%#          Each stop-point is numbered here and also in the code generator.

%#          (See gen.c, etc. for details.)

%#   %not-for-header  -  Begin code that should NOT appear in a ".h" file.

%#   %ok-for-header   -  %c and %e are used for building a header file.

%#   %if-tables-serialization

%#

%#   All control-lines EXCEPT comment lines ("%#") will be inserted into

%#   the generated scanner as a C-style comment. This is to aid those who

%#   edit the skeleton.

%#

%not-for-header

%if-c-only

%if-not-reentrant

m4_ifelse(M4_YY_PREFIX,yy,,

#define yy_create_buffer M4_YY_PREFIX[[_create_buffer]]

#define yy_delete_buffer M4_YY_PREFIX[[_delete_buffer]]

#define yy_flex_debug M4_YY_PREFIX[[_flex_debug]]

#define yy_init_buffer M4_YY_PREFIX[[_init_buffer]]

#define yy_flush_buffer M4_YY_PREFIX[[_flush_buffer]]

#define yy_load_buffer_state M4_YY_PREFIX[[_load_buffer_state]]

#define yy_switch_to_buffer M4_YY_PREFIX[[_switch_to_buffer]]

#define yyin M4_YY_PREFIX[[in]]

#define yyleng M4_YY_PREFIX[[leng]]

#define yylex M4_YY_PREFIX[[lex]]

#define yylineno M4_YY_PREFIX[[lineno]]

#define yyout M4_YY_PREFIX[[out]]

#define yyrestart M4_YY_PREFIX[[restart]]

#define yytext M4_YY_PREFIX[[text]]

#define yywrap M4_YY_PREFIX[[wrap]]

#define yyalloc M4_YY_PREFIX[[alloc]]

#define yyrealloc M4_YY_PREFIX[[realloc]]

#define yyfree M4_YY_PREFIX[[free]]

)

%endif

%endif

%ok-for-header

#define FLEX_SCANNER

#define YY_FLEX_MAJOR_VERSION FLEX_MAJOR_VERSION

#define YY_FLEX_MINOR_VERSION FLEX_MINOR_VERSION

#define YY_FLEX_SUBMINOR_VERSION FLEX_SUBMINOR_VERSION

#if YY_FLEX_SUBMINOR_VERSION > 0

#define FLEX_BETA

#endif

%# Some negated symbols

m4_ifdef( [[M4_YY_IN_HEADER]], , [[m4_define([[M4_YY_NOT_IN_HEADER]], [[]])]])

m4_ifdef( [[M4_YY_REENTRANT]], , [[m4_define([[M4_YY_NOT_REENTRANT]], [[]])]])

%# This is the m4 way to say "(stack_used || is_reentrant)

m4_ifdef( [[M4_YY_STACK_USED]], [[m4_define([[M4_YY_HAS_START_STACK_VARS]])]])

m4_ifdef( [[M4_YY_REENTRANT]],  [[m4_define([[M4_YY_HAS_START_STACK_VARS]])]])

%# Prefixes.

%# The complexity here is necessary so that m4 preserves

%# the argument lists to each C function.

m4_ifdef( [[M4_YY_PREFIX]],, [[m4_define([[M4_YY_PREFIX]], [[yy]])]])

m4preproc_define(`M4_GEN_PREFIX',

    ``m4_define(yy[[$1]], [[M4_YY_PREFIX[[$1]]m4_ifelse($'`#,0,,[[($'`@)]])]])'')

%if-c++-only

    /* The c++ scanner is a mess. The FlexLexer.h header file relies on the

     * following macro. This is required in order to pass the c++-multiple-scanners

     * test in the regression suite. We get reports that it breaks inheritance.

     * We will address this in a future release of flex, or omit the C++ scanner

     * altogether.

     */

    #define yyFlexLexer M4_YY_PREFIX[[FlexLexer]]

%endif

%if-c-only

    M4_GEN_PREFIX(`_create_buffer')

    M4_GEN_PREFIX(`_delete_buffer')

    M4_GEN_PREFIX(`_scan_buffer')

    M4_GEN_PREFIX(`_scan_string')

    M4_GEN_PREFIX(`_scan_bytes')

    M4_GEN_PREFIX(`_init_buffer')

    M4_GEN_PREFIX(`_flush_buffer')

    M4_GEN_PREFIX(`_load_buffer_state')

    M4_GEN_PREFIX(`_switch_to_buffer')

    M4_GEN_PREFIX(`push_buffer_state')

    M4_GEN_PREFIX(`pop_buffer_state')

    M4_GEN_PREFIX(`ensure_buffer_stack')

    M4_GEN_PREFIX(`lex')

    M4_GEN_PREFIX(`restart')

    M4_GEN_PREFIX(`lex_init')

    M4_GEN_PREFIX(`lex_init_extra')

    M4_GEN_PREFIX(`lex_destroy')

    M4_GEN_PREFIX(`get_debug')

    M4_GEN_PREFIX(`set_debug')

    M4_GEN_PREFIX(`get_extra')

    M4_GEN_PREFIX(`set_extra')

    M4_GEN_PREFIX(`get_in')

    M4_GEN_PREFIX(`set_in')

    M4_GEN_PREFIX(`get_out')

    M4_GEN_PREFIX(`set_out')

    M4_GEN_PREFIX(`get_leng')

    M4_GEN_PREFIX(`get_text')

    M4_GEN_PREFIX(`get_lineno')

    M4_GEN_PREFIX(`set_lineno')

    m4_ifdef( [[M4_YY_REENTRANT]],

    [[

        M4_GEN_PREFIX(`get_column')

        M4_GEN_PREFIX(`set_column')

    ]])

    M4_GEN_PREFIX(`wrap')

%endif

m4_ifdef( [[M4_YY_BISON_LVAL]],

[[

    M4_GEN_PREFIX(`get_lval')

    M4_GEN_PREFIX(`set_lval')

]])

m4_ifdef( [[<M4_YY_BISON_LLOC>]],

[[

    M4_GEN_PREFIX(`get_lloc')

    M4_GEN_PREFIX(`set_lloc')

]])

    M4_GEN_PREFIX(`alloc')

    M4_GEN_PREFIX(`realloc')

    M4_GEN_PREFIX(`free')

%if-c-only

m4_ifdef( [[M4_YY_NOT_REENTRANT]],

[[

    M4_GEN_PREFIX(`text')

    M4_GEN_PREFIX(`leng')

    M4_GEN_PREFIX(`in')

    M4_GEN_PREFIX(`out')

    M4_GEN_PREFIX(`_flex_debug')

    M4_GEN_PREFIX(`lineno')

]])

%endif

m4_ifdef( [[M4_YY_TABLES_EXTERNAL]],

[[

    M4_GEN_PREFIX(`tables_fload')

    M4_GEN_PREFIX(`tables_destroy')

    M4_GEN_PREFIX(`TABLES_NAME')

]])

/* First, we deal with  platform-specific or compiler-specific issues. */

/* begin standard C headers. */

%if-c-only

#include <stdio.h>

#include <string.h>

#include <errno.h>

#include <stdlib.h>

%endif

%if-tables-serialization

#include <sys/types.h>

#include <netinet/in.h>

%endif

/* end standard C headers. */

%if-c-or-c++

m4preproc_include(`flexint.h')

%endif

%if-c++-only

/* begin standard C++ headers. */

#include <iostream> 

#include <errno.h>

#include <cstdlib>

#include <cstdio>

#include <cstring>

/* end standard C++ headers. */

%endif

/* TODO: this is always defined, so inline it */

#define yyconst const

#if defined(__GNUC__) && __GNUC__ >= 3

#define yynoreturn __attribute__((__noreturn__))

#else

#define yynoreturn

#endif

%# For compilers that can not handle prototypes.

%# e.g.,

%# The function prototype

%#    int foo(int x, char* y);

%# 

%# ...should be written as

%#    int foo M4_YY_PARAMS(int x, char* y);

%# 

%# ...which could possibly generate

%#    int foo ();

%# 

m4_ifdef( [[M4_YY_NO_ANSI_FUNC_PROTOS]],

[[

    m4_define( [[M4_YY_PARAMS]], [[()]])

]],

[[

    m4_define( [[M4_YY_PARAMS]], [[($*)]])

]])

%not-for-header

/* Returned upon end-of-file. */

#define YY_NULL 0

%ok-for-header

%not-for-header

/* Promotes a possibly negative, possibly signed char to an unsigned

 * integer for use as an array index.  If the signed char is negative,

 * we want to instead treat it as an 8-bit unsigned char, hence the

 * double cast.

 */

#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)

%ok-for-header

%if-reentrant

/* An opaque pointer. */

#ifndef YY_TYPEDEF_YY_SCANNER_T

#define YY_TYPEDEF_YY_SCANNER_T

typedef void* yyscan_t;

#endif

%# Declare yyguts variable

m4_define( [[M4_YY_DECL_GUTS_VAR]], [[struct yyguts_t * yyg = (struct yyguts_t*)yyscanner]])

%# Perform a noop access on yyguts to prevent unused variable complains

m4_define( [[M4_YY_NOOP_GUTS_VAR]], [[(void)yyg]])

%# For use wherever a Global is accessed or assigned.

m4_define( [[YY_G]], [[yyg->$1]])

%# For use in function prototypes to append the additional argument.

m4_define( [[M4_YY_PROTO_LAST_ARG]],  [[, yyscan_t yyscanner]])

m4_define( [[M4_YY_PROTO_ONLY_ARG]],  [[yyscan_t yyscanner]])

%# For use in function definitions to append the additional argument.

m4_ifdef( [[M4_YY_NO_ANSI_FUNC_DEFS]],

[[

    m4_define( [[M4_YY_DEF_LAST_ARG]], [[, yyscanner]])

    m4_define( [[M4_YY_DEF_ONLY_ARG]], [[yyscanner]])

]],

[[

    m4_define( [[M4_YY_DEF_LAST_ARG]],  [[, yyscan_t yyscanner]])

    m4_define( [[M4_YY_DEF_ONLY_ARG]],  [[yyscan_t yyscanner]])

]])

m4_define( [[M4_YY_DECL_LAST_ARG]],  [[yyscan_t yyscanner;]])

%# For use in function calls to pass the additional argument.

m4_define( [[M4_YY_CALL_LAST_ARG]], [[, yyscanner]])

m4_define( [[M4_YY_CALL_ONLY_ARG]], [[yyscanner]])

%# For use in function documentation to adjust for additional argument.

m4_define( [[M4_YY_DOC_PARAM]], [[@param yyscanner The scanner object.]])

/* For convenience, these vars (plus the bison vars far below)

   are macros in the reentrant scanner. */

#define yyin YY_G(yyin_r)

#define yyout YY_G(yyout_r)

#define yyextra YY_G(yyextra_r)

#define yyleng YY_G(yyleng_r)

#define yytext YY_G(yytext_r)

#define yylineno (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno)

#define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)

#define yy_flex_debug YY_G(yy_flex_debug_r)

m4_define( [[M4_YY_INCR_LINENO]],

[[   

    do{ yylineno++;

        yycolumn=0;

    }while(0)

]])

%endif

%if-not-reentrant

m4_define( [[M4_YY_INCR_LINENO]],

[[   

    yylineno++;

]])

%# Define these macros to be no-ops.

m4_define( [[M4_YY_DECL_GUTS_VAR]], [[m4_dnl]])

m4_define( [[M4_YY_NOOP_GUTS_VAR]], [[m4_dnl]])

m4_define( [[YY_G]], [[($1)]])

m4_define( [[M4_YY_PROTO_LAST_ARG]])

m4_define( [[M4_YY_PROTO_ONLY_ARG]],  [[void]])

m4_define( [[M4_YY_DEF_LAST_ARG]])

m4_ifdef( [[M4_YY_NO_ANSI_FUNC_DEFS]],

[[

    m4_define( [[M4_YY_DEF_ONLY_ARG]])

]],

[[

    m4_define( [[M4_YY_DEF_ONLY_ARG]],  [[void]])

]])

m4_define([[M4_YY_DECL_LAST_ARG]])

m4_define([[M4_YY_CALL_LAST_ARG]])

m4_define([[M4_YY_CALL_ONLY_ARG]])

m4_define( [[M4_YY_DOC_PARAM]], [[]])

%endif

m4_ifdef( [[M4_YY_NO_ANSI_FUNC_DEFS]],

[[

%# For compilers that need traditional function definitions.

%# e.g.,

%# The function prototype taking 2 arguments

%#    int foo (int x, char* y)

%#

%# ...should be written as

%#    int foo YYFARGS2(int,x, char*,y)

%#

%# ...which could possibly generate

%#    int foo (x,y,yyscanner)

%#        int x;

%#        char * y;

%#        yyscan_t yyscanner;

%#

%# Generate traditional function defs

    m4_define( [[YYFARGS0]], [[(M4_YY_DEF_ONLY_ARG) [[\]]

        M4_YY_DECL_LAST_ARG]])

    m4_define( [[YYFARGS1]], [[($2 M4_YY_DEF_LAST_ARG) [[\]]

        $1 $2; [[\]]

        M4_YY_DECL_LAST_ARG]])

    m4_define( [[YYFARGS2]], [[($2,$4 M4_YY_DEF_LAST_ARG) [[\]]

        $1 $2; [[\]]

        $3 $4; [[\]]

        M4_YY_DECL_LAST_ARG]])

    m4_define( [[YYFARGS3]], [[($2,$4,$6 M4_YY_DEF_LAST_ARG) [[\]]

        $1 $2; [[\]]

        $3 $4; [[\]]

        $5 $6; [[\]]

        M4_YY_DECL_LAST_ARG]])

]],

[[

%# Generate C99 function defs.

    m4_define( [[YYFARGS0]], [[(M4_YY_DEF_ONLY_ARG)]])

    m4_define( [[YYFARGS1]], [[($1 $2 M4_YY_DEF_LAST_ARG)]])

    m4_define( [[YYFARGS2]], [[($1 $2, $3 $4 M4_YY_DEF_LAST_ARG)]])

    m4_define( [[YYFARGS3]], [[($1 $2, $3 $4, $5 $6 M4_YY_DEF_LAST_ARG)]])

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

/* Enter a start condition.  This macro really ought to take a parameter,

 * but we do it the disgusting crufty way forced on us by the ()-less

 * definition of BEGIN.

 */

#define BEGIN YY_G(yy_start) = 1 + 2 *

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

/* Translate the current start state into a value that can be later handed

 * to BEGIN to return to the state.  The YYSTATE alias is for lex

 * compatibility.

 */

#define YY_START ((YY_G(yy_start) - 1) / 2)

#define YYSTATE YY_START

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

/* Action number for EOF rule of a given start state. */

#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

/* Special action meaning "start processing a new file". */

#define YY_NEW_FILE yyrestart( yyin M4_YY_CALL_LAST_ARG )

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

#define YY_END_OF_BUFFER_CHAR 0

]])

/* Size of default input buffer. */

#ifndef YY_BUF_SIZE

#ifdef __ia64__

/* On IA-64, the buffer size is 16k, not 8k.

 * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.

 * Ditto for the __ia64__ case accordingly.

 */

#define YY_BUF_SIZE 32768

#else

#define YY_BUF_SIZE 16384

#endif /* __ia64__ */

#endif

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

/* The state buf must be large enough to hold one state per character in the main buffer.

 */

#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))

]])

#ifndef YY_TYPEDEF_YY_BUFFER_STATE

#define YY_TYPEDEF_YY_BUFFER_STATE

typedef struct yy_buffer_state *YY_BUFFER_STATE;

#endif

#ifndef YY_TYPEDEF_YY_SIZE_T

#define YY_TYPEDEF_YY_SIZE_T

typedef size_t yy_size_t;

#endif

%if-not-reentrant

extern int yyleng;

%endif

%if-c-only

%if-not-reentrant

extern FILE *yyin, *yyout;

%endif

%endif

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

#define EOB_ACT_CONTINUE_SCAN 0

#define EOB_ACT_END_OF_FILE 1

#define EOB_ACT_LAST_MATCH 2

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

    m4_ifdef( [[M4_YY_USE_LINENO]],

    [[

    /* Note: We specifically omit the test for yy_rule_can_match_eol because it requires

     *       access to the local variable yy_act. Since yyless() is a macro, it would break

     *       existing scanners that call yyless() from OUTSIDE yylex. 

     *       One obvious solution it to make yy_act a global. I tried that, and saw

     *       a 5% performance hit in a non-yylineno scanner, because yy_act is

     *       normally declared as a register variable-- so it is not worth it.

     */

    #define  YY_LESS_LINENO(n) \

            do { \

                yy_size_t yyl;\

                for ( yyl = n; yyl < yyleng; ++yyl )\

                    if ( yytext[yyl] == '\n' )\

                        --yylineno;\

            }while(0)

    #define YY_LINENO_REWIND_TO(dst) \

            do {\

                const char *p;\

                for ( p = yy_cp-1; p >= (dst); --p)\

                    if ( *p == '\n' )\

                        --yylineno;\

            }while(0)

    ]],

    [[

    #define YY_LESS_LINENO(n)

    #define YY_LINENO_REWIND_TO(ptr)

    ]])

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

/* Return all but the first "n" matched characters back to the input stream. */

#define yyless(n) \

	do \

		{ \

		/* Undo effects of setting up yytext. */ \

        yy_size_t yyless_macro_arg = (n); \

        YY_LESS_LINENO(yyless_macro_arg);\

		*yy_cp = YY_G(yy_hold_char); \

		YY_RESTORE_YY_MORE_OFFSET \

		YY_G(yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \

		YY_DO_BEFORE_ACTION; /* set up yytext again */ \

		} \

	while ( 0 )

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

#define unput(c) yyunput( c, YY_G(yytext_ptr) M4_YY_CALL_LAST_ARG )

]])

#ifndef YY_STRUCT_YY_BUFFER_STATE

#define YY_STRUCT_YY_BUFFER_STATE

struct yy_buffer_state

	{

%if-c-only

	FILE *yy_input_file;

%endif

%if-c++-only

	std::streambuf* yy_input_file; 

%endif

	char *yy_ch_buf;		/* input buffer */

	char *yy_buf_pos;		/* current position in input buffer */

	/* Size of input buffer in bytes, not including room for EOB

	 * characters.

	 */

	int yy_buf_size;

	/* Number of characters read into yy_ch_buf, not including EOB

	 * characters.

	 */

	int yy_n_chars;

	/* Whether we "own" the buffer - i.e., we know we created it,

	 * and can realloc() it to grow it, and should free() it to

	 * delete it.

	 */

	int yy_is_our_buffer;

	/* Whether this is an "interactive" input source; if so, and

	 * if we're using stdio for input, then we want to use getc()

	 * instead of fread(), to make sure we stop fetching input after

	 * each newline.

	 */

	int yy_is_interactive;

	/* Whether we're considered to be at the beginning of a line.

	 * If so, '^' rules will be active on the next match, otherwise

	 * not.

	 */

	int yy_at_bol;

    int yy_bs_lineno; /**< The line count. */

    int yy_bs_column; /**< The column count. */

	/* Whether to try to fill the input buffer when we reach the

	 * end of it.

	 */

	int yy_fill_buffer;

	int yy_buffer_status;

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

#define YY_BUFFER_NEW 0

#define YY_BUFFER_NORMAL 1

	/* When an EOF's been seen but there's still some text to process

	 * then we mark the buffer as YY_EOF_PENDING, to indicate that we

	 * shouldn't try reading from the input source any more.  We might

	 * still have a bunch of tokens to match, though, because of

	 * possible backing-up.

	 *

	 * When we actually see the EOF, we change the status to "new"

	 * (via yyrestart()), so that the user can continue scanning by

	 * just pointing yyin at a new input file.

	 */

#define YY_BUFFER_EOF_PENDING 2

]])

	};

#endif /* !YY_STRUCT_YY_BUFFER_STATE */

%if-c-only Standard (non-C++) definition

%not-for-header

%if-not-reentrant

/* Stack of input buffers. */

static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */

static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */

static YY_BUFFER_STATE * yy_buffer_stack = NULL; /**< Stack as an array. */

%endif

%ok-for-header

%endif

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

/* We provide macros for accessing buffer states in case in the

 * future we want to put the buffer states in a more general

 * "scanner state".

 *

 * Returns the top of the stack, or NULL.

 */

#define YY_CURRENT_BUFFER ( YY_G(yy_buffer_stack) \

                          ? YY_G(yy_buffer_stack)[YY_G(yy_buffer_stack_top)] \

                          : NULL)

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

/* Same as previous macro, but useful when we know that the buffer stack is not

 * NULL or when we need an lvalue. For internal use only.

 */

#define YY_CURRENT_BUFFER_LVALUE YY_G(yy_buffer_stack)[YY_G(yy_buffer_stack_top)]

]])

%if-c-only Standard (non-C++) definition

%if-not-reentrant

%not-for-header

/* yy_hold_char holds the character lost when yytext is formed. */

static char yy_hold_char;

static int yy_n_chars;		/* number of characters read into yy_ch_buf */

int yyleng;

/* Points to current character in buffer. */

static char *yy_c_buf_p = NULL;

static int yy_init = 0;		/* whether we need to initialize */

static int yy_start = 0;	/* start state number */

/* Flag which is used to allow yywrap()'s to do buffer switches

 * instead of setting up a fresh yyin.  A bit of a hack ...

 */

static int yy_did_buffer_switch_on_eof;

%ok-for-header

%endif

void yyrestart M4_YY_PARAMS( FILE *input_file M4_YY_PROTO_LAST_ARG );

void yy_switch_to_buffer M4_YY_PARAMS( YY_BUFFER_STATE new_buffer M4_YY_PROTO_LAST_ARG );

YY_BUFFER_STATE yy_create_buffer M4_YY_PARAMS( FILE *file, int size M4_YY_PROTO_LAST_ARG );

void yy_delete_buffer M4_YY_PARAMS( YY_BUFFER_STATE b M4_YY_PROTO_LAST_ARG );

void yy_flush_buffer M4_YY_PARAMS( YY_BUFFER_STATE b M4_YY_PROTO_LAST_ARG );

void yypush_buffer_state M4_YY_PARAMS( YY_BUFFER_STATE new_buffer M4_YY_PROTO_LAST_ARG );

void yypop_buffer_state M4_YY_PARAMS( M4_YY_PROTO_ONLY_ARG );

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

static void yyensure_buffer_stack M4_YY_PARAMS( M4_YY_PROTO_ONLY_ARG );

static void yy_load_buffer_state M4_YY_PARAMS( M4_YY_PROTO_ONLY_ARG );

static void yy_init_buffer M4_YY_PARAMS( YY_BUFFER_STATE b, FILE *file M4_YY_PROTO_LAST_ARG );

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

#define YY_FLUSH_BUFFER yy_flush_buffer( YY_CURRENT_BUFFER M4_YY_CALL_LAST_ARG)

]])

YY_BUFFER_STATE yy_scan_buffer M4_YY_PARAMS( char *base, yy_size_t size M4_YY_PROTO_LAST_ARG );

YY_BUFFER_STATE yy_scan_string M4_YY_PARAMS( yyconst char *yy_str M4_YY_PROTO_LAST_ARG );

YY_BUFFER_STATE yy_scan_bytes M4_YY_PARAMS( yyconst char *bytes, int len M4_YY_PROTO_LAST_ARG );

%endif

void *yyalloc M4_YY_PARAMS( yy_size_t M4_YY_PROTO_LAST_ARG );

void *yyrealloc M4_YY_PARAMS( void *, yy_size_t M4_YY_PROTO_LAST_ARG );

void yyfree M4_YY_PARAMS( void * M4_YY_PROTO_LAST_ARG );

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

#define yy_new_buffer yy_create_buffer

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

#define yy_set_interactive(is_interactive) \

	{ \

	if ( ! YY_CURRENT_BUFFER ){ \

        yyensure_buffer_stack (M4_YY_CALL_ONLY_ARG); \

		YY_CURRENT_BUFFER_LVALUE =    \

            yy_create_buffer( yyin, YY_BUF_SIZE M4_YY_CALL_LAST_ARG); \

	} \

	YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \

	}

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

#define yy_set_bol(at_bol) \

	{ \

	if ( ! YY_CURRENT_BUFFER ){\

        yyensure_buffer_stack (M4_YY_CALL_ONLY_ARG); \

		YY_CURRENT_BUFFER_LVALUE =    \

            yy_create_buffer( yyin, YY_BUF_SIZE M4_YY_CALL_LAST_ARG); \

	} \

	YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \

	}

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)

]])

%% [1.0] yytext/yyin/yyout/yy_state_type/yylineno etc. def's & init go here

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

%% [1.5] DFA

]])

%if-c-only Standard (non-C++) definition

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

static yy_state_type yy_get_previous_state M4_YY_PARAMS( M4_YY_PROTO_ONLY_ARG );

static yy_state_type yy_try_NUL_trans M4_YY_PARAMS( yy_state_type current_state  M4_YY_PROTO_LAST_ARG);

static int yy_get_next_buffer M4_YY_PARAMS( M4_YY_PROTO_ONLY_ARG );

static void yynoreturn yy_fatal_error M4_YY_PARAMS( yyconst char* msg M4_YY_PROTO_LAST_ARG );

]])

%endif

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

/* Done after the current pattern has been matched and before the

 * corresponding action - sets up yytext.

 */

#define YY_DO_BEFORE_ACTION \

	YY_G(yytext_ptr) = yy_bp; \

%% [2.0] code to fiddle yytext and yyleng for yymore() goes here \

	YY_G(yy_hold_char) = *yy_cp; \

	*yy_cp = '\0'; \

%% [3.0] code to copy yytext_ptr to yytext[] goes here, if %array \

	YY_G(yy_c_buf_p) = yy_cp;

]])

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

%% [4.0] data tables for the DFA and the user's section 1 definitions go here

]])

m4_ifdef( [[M4_YY_IN_HEADER]], [[#ifdef YY_HEADER_EXPORT_START_CONDITIONS]])

M4_YY_SC_DEFS

m4_ifdef( [[M4_YY_IN_HEADER]], [[#endif]])

m4_ifdef( [[M4_YY_NO_UNISTD_H]],,

[[

#ifndef YY_NO_UNISTD_H

/* Special case for "unistd.h", since it is non-ANSI. We include it way

 * down here because we want the user's section 1 to have been scanned first.

 * The user has a chance to override it with an option.

 */

%if-c-only

#include <unistd.h>

%endif

%if-c++-only

#include <unistd.h>

%endif

#endif

]])

m4_ifdef( [[M4_EXTRA_TYPE_DEFS]],

[[

#define YY_EXTRA_TYPE M4_EXTRA_TYPE_DEFS

]],

[[

#ifndef YY_EXTRA_TYPE

#define YY_EXTRA_TYPE void *

#endif

]]

)

%if-c-only Reentrant structure and macros (non-C++).

%if-reentrant

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

/* Holds the entire state of the reentrant scanner. */

struct yyguts_t

    {

    /* User-defined. Not touched by flex. */

    YY_EXTRA_TYPE yyextra_r;

    /* The rest are the same as the globals declared in the non-reentrant scanner. */

    FILE *yyin_r, *yyout_r;

    size_t yy_buffer_stack_top; /**< index of top of stack. */

    size_t yy_buffer_stack_max; /**< capacity of stack. */

    YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */

    char yy_hold_char;

    int yy_n_chars;

    int yyleng_r;

    char *yy_c_buf_p;

    int yy_init;

    int yy_start;

    int yy_did_buffer_switch_on_eof;

    int yy_start_stack_ptr;

    int yy_start_stack_depth;

    int *yy_start_stack;

    yy_state_type yy_last_accepting_state;

    char* yy_last_accepting_cpos;

    int yylineno_r;

    int yy_flex_debug_r;

m4_ifdef( [[M4_YY_USES_REJECT]],

[[

    yy_state_type *yy_state_buf;

    yy_state_type *yy_state_ptr;

    char *yy_full_match;

    int yy_lp;

    /* These are only needed for trailing context rules,

     * but there's no conditional variable for that yet. */

    int yy_looking_for_trail_begin;

    int yy_full_lp;

    int *yy_full_state;

]])

m4_ifdef( [[M4_YY_TEXT_IS_ARRAY]],

[[

    char yytext_r[YYLMAX];

    char *yytext_ptr;

    int yy_more_offset;

    int yy_prev_more_offset;

]],

[[

    char *yytext_r;

    int yy_more_flag;

    int yy_more_len;

]])

m4_ifdef( [[M4_YY_BISON_LVAL]],

[[

    YYSTYPE * yylval_r;

]])

m4_ifdef( [[<M4_YY_BISON_LLOC>]],

[[

    YYLTYPE * yylloc_r;

]])

    }; /* end struct yyguts_t */

]])

%if-c-only

m4_ifdef( [[M4_YY_NOT_IN_HEADER]],

[[

static int yy_init_globals M4_YY_PARAMS( M4_YY_PROTO_ONLY_ARG );

]])

%endif