cmdline_scan.cc

Libgist is an implementation of the Generalized Search Tree, a template index structure that makes i

/* A lexical scanner generated by flex */

/* Scanner skeleton version:
 * $Header: /home/daffy/u0/vern/flex/RCS/flex.skl,v 2.91 96/09/10 16:58:48 vern Exp $
 */

#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5

#include <stdio.h>
#include <unistd.h>


/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
#ifdef c_plusplus
#ifndef __cplusplus
#define __cplusplus
#endif
#endif


#ifdef __cplusplus

#include <stdlib.h>

/* Use prototypes in function declarations. */
#define YY_USE_PROTOS

/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST

#else	/* ! __cplusplus */

#if __STDC__

#define YY_USE_PROTOS
#define YY_USE_CONST

#endif	/* __STDC__ */
#endif	/* ! __cplusplus */

#ifdef __TURBOC__
 #pragma warn -rch
 #pragma warn -use
#include <io.h>
#include <stdlib.h>
#define YY_USE_CONST
#define YY_USE_PROTOS
#endif

#ifdef YY_USE_CONST
#define yyconst const
#else
#define yyconst
#endif


#ifdef YY_USE_PROTOS
#define YY_PROTO(proto) proto
#else
#define YY_PROTO(proto) ()
#endif

/* Returned upon end-of-file. */
#define YY_NULL 0

/* 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)

/* 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_start = 1 + 2 *

/* 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_start - 1) / 2)
#define YYSTATE YY_START

/* Action number for EOF rule of a given start state. */
#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)

/* Special action meaning "start processing a new file". */
#define YY_NEW_FILE yyrestart( yyin )

#define YY_END_OF_BUFFER_CHAR 0

/* Size of default input buffer. */
#define YY_BUF_SIZE 16384

typedef struct yy_buffer_state *YY_BUFFER_STATE;

extern int yyleng;
extern FILE *yyin, *yyout;

#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2

/* The funky do-while in the following #define is used to turn the definition
 * int a single C statement (which needs a semi-colon terminator).  This
 * avoids problems with code like:
 *
 * 	if ( condition_holds )
 *		yyless( 5 );
 *	else
 *		do_something_else();
 *
 * Prior to using the do-while the compiler would get upset at the
 * "else" because it interpreted the "if" statement as being all
 * done when it reached the ';' after the yyless() call.
 */

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

#define yyless(n) \
	do \
		{ \
		/* Undo effects of setting up yytext. */ \
		*yy_cp = yy_hold_char; \
		YY_RESTORE_YY_MORE_OFFSET \
		yy_c_buf_p = yy_cp = yy_bp + n - YY_MORE_ADJ; \
		YY_DO_BEFORE_ACTION; /* set up yytext again */ \
		} \
	while ( 0 )

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

/* The following is because we cannot portably get our hands on size_t
 * (without autoconf's help, which isn't available because we want
 * flex-generated scanners to compile on their own).
 */
typedef unsigned int yy_size_t;


struct yy_buffer_state
	{
	FILE *yy_input_file;

	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.
	 */
	yy_size_t 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;

	/* Whether to try to fill the input buffer when we reach the
	 * end of it.
	 */
	int yy_fill_buffer;

	int yy_buffer_status;
#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
	};

static YY_BUFFER_STATE yy_current_buffer = 0;

/* 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".
 */
#define YY_CURRENT_BUFFER yy_current_buffer


/* 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 = (char *) 0;
static int yy_init = 1;		/* 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;

void yyrestart YY_PROTO(( FILE *input_file ));

void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer ));
void yy_load_buffer_state YY_PROTO(( void ));
YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size ));
void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b ));
void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file ));
void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b ));
#define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer )

YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size ));
YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str ));
YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len ));

static void *yy_flex_alloc YY_PROTO(( yy_size_t ));
static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t ));
static void yy_flex_free YY_PROTO(( void * ));

#define yy_new_buffer yy_create_buffer

#define yy_set_interactive(is_interactive) \
	{ \
	if ( ! yy_current_buffer ) \
		yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
	yy_current_buffer->yy_is_interactive = is_interactive; \
	}

#define yy_set_bol(at_bol) \
	{ \
	if ( ! yy_current_buffer ) \
		yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \
	yy_current_buffer->yy_at_bol = at_bol; \
	}

#define YY_AT_BOL() (yy_current_buffer->yy_at_bol)

typedef unsigned char YY_CHAR;
FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
typedef int yy_state_type;
extern char *yytext;
#define yytext_ptr yytext

static yy_state_type yy_get_previous_state YY_PROTO(( void ));
static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state ));
static int yy_get_next_buffer YY_PROTO(( void ));
static void yy_fatal_error YY_PROTO(( yyconst char msg[] ));

/* Done after the current pattern has been matched and before the
 * corresponding action - sets up yytext.
 */
#define YY_DO_BEFORE_ACTION \
	yytext_ptr = yy_bp; \
	yyleng = (int) (yy_cp - yy_bp); \
	yy_hold_char = *yy_cp; \
	*yy_cp = '\0'; \
	yy_c_buf_p = yy_cp;

#define YY_NUM_RULES 34
#define YY_END_OF_BUFFER 35
static yyconst short int yy_accept[150] =
    {   0,
        0,    0,   35,   33,    1,   31,   31,   32,   32,    2,
       32,    4,   32,   32,   32,   32,   32,   32,   32,   32,
       32,   32,   32,   32,    1,   32,    0,   32,   30,    2,
        2,    4,   32,   32,   32,   32,   32,   32,   32,   32,
       32,   32,   32,   32,   32,   32,   32,   32,   32,   32,
       32,   32,   32,   30,    3,   32,   32,   32,   32,   32,
       32,   32,   32,   32,   32,   32,   32,   32,   32,   32,
       32,   19,   32,   32,   32,   32,   32,   32,   32,   32,
       32,   26,   21,   27,   32,   29,   32,   14,   32,   32,
       28,   32,   32,   32,   32,   32,   32,   18,   15,   32,

       32,   32,   32,   32,   32,   32,   32,   13,   32,   32,
       22,   32,   32,    6,   24,   23,   32,   32,   32,   32,
       25,   32,   20,   32,   11,   32,   32,   32,   16,   32,
       32,   32,   32,   17,   32,    5,   32,   12,   32,   32,
        7,   32,   32,   10,   32,    8,   32,    9,    0
    } ;

static yyconst int yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        1,    1,    4,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    2,    5,    6,    7,    5,    5,    5,    5,    5,
        5,    5,    5,    5,    8,    9,    5,   10,   10,   10,
       10,   10,   10,   10,   10,   10,   10,    5,    5,    5,
       11,    5,    5,    5,    5,    5,    5,    5,    5,    5,
        5,    5,    5,    5,    5,    5,    5,    5,    5,    5,
        5,    5,    5,    5,    5,    5,    5,    5,    5,    5,
        5,    5,    5,    5,    5,    5,   12,    5,   13,   14,

       15,   16,    5,   17,   18,    5,   19,   20,   21,   22,
       23,   24,   25,   26,   27,   28,   29,    5,   30,    5,
       31,    5,    5,    5,    5,    5,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,

        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1
    } ;

static yyconst int yy_meta[32] =
    {   0,
        1,    1,    2,    1,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        3,    3,    3,    3,    3,    3,    3,    3,    3,    3,
        3
    } ;

static yyconst short int yy_base[155] =
    {   0,
        0,    0,  183,  184,  180,  184,  184,    0,   31,   37,
      171,   33,  158,   27,   21,  166,  163,   23,  154,  152,
       25,  146,   33,   30,  172,    0,  167,   61,    0,    0,
       67,   45,  162,  151,  155,  146,  153,  147,  145,  148,
      144,  136,  151,  149,  145,  137,  143,  139,   32,  136,
      129,  134,  135,  184,  142,  133,  137,  122,  136,  132,
      122,  122,  120,  128,  132,  127,  118,  127,  124,  109,
      121,    0,  117,  105,  119,  104,  109,  111,  114,  100,
       99,    0,    0,    0,  100,  115,  108,  111,  102,  103,
        0,  107,   91,  105,   90,  101,   99,    0,  102,   98,

       97,   83,   92,   87,   80,   85,   78,   78,   76,   75,
        0,   79,   79,   88,    0,    0,   79,   78,   66,   80,
        0,   67,    0,   82,    0,   73,   70,   76,    0,   63,
       66,   76,   59,    0,   66,    0,   57,    0,   56,   55,
        0,   64,   43,    0,   38,    0,   32,    0,  184,   55,
       71,   74,   77,   80
    } ;

static yyconst short int yy_def[155] =
    {   0,
      149,    1,  149,  149,  149,  149,  149,  150,  151,  152,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  149,  150,  153,  151,  150,  154,
      152,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  149,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,

      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,  150,  150,
      150,  150,  150,  150,  150,  150,  150,  150,    0,  149,
      149,  149,  149,  149
    } ;

static yyconst short int yy_nxt[216] =
    {   0,
        4,    5,    6,    7,    8,    9,   10,   11,    8,   12,
        8,   13,   14,   15,   16,    8,   17,   18,    8,   19,
        8,    8,   20,   21,   22,    8,   23,    8,    8,   24,
        8,   27,   27,   27,   27,   38,   29,   30,   30,   46,
       30,   33,   32,   35,   42,   43,   36,   49,   52,   39,
       47,   71,   37,   33,   32,   53,   50,   26,  148,   72,
       51,   27,   27,   27,   27,  147,   29,   30,   30,  146,
       30,   28,   28,   28,   31,  145,   31,   27,   27,   27,
       30,  144,   30,  143,  142,  141,  140,  139,  138,  137,
      136,  135,  134,  133,  132,  131,  130,  129,  128,  127,

      126,  125,  124,  123,  122,  121,  120,  119,  118,  117,
      116,  115,  114,  113,  112,  111,  110,  109,  108,  107,
      106,  105,  104,  103,   86,  102,  101,  100,   99,   98,
       97,   96,   95,   94,   93,   92,   91,   90,   89,   88,
       87,   86,   85,   84,   83,   82,   81,   80,   79,   78,
       77,   55,   76,   75,   74,   73,   70,   69,   68,   67,
       66,   65,   64,   63,   62,   61,   60,   59,   58,   57,
       56,   55,   54,   25,   48,   45,   44,   41,   40,   34,
       32,   25,  149,    3,  149,  149,  149,  149,  149,  149,
      149,  149,  149,  149,  149,  149,  149,  149,  149,  149,

      149,  149,  149,  149,  149,  149,  149,  149,  149,  149,
      149,  149,  149,  149,  149
    } ;

static yyconst short int yy_chk[216] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    9,    9,    9,    9,   15,    9,   10,   10,   21,
       10,   12,   12,   14,   18,   18,   14,   23,   24,   15,
       21,   49,   14,   32,   32,   24,   23,  150,  147,   49,
       23,   28,   28,   28,   28,  145,   28,   31,   31,  143,
       31,  151,  151,  151,  152,  142,  152,  153,  153,  153,
      154,  140,  154,  139,  137,  135,  133,  132,  131,  130,
      128,  127,  126,  124,  122,  120,  119,  118,  117,  114,

      113,  112,  110,  109,  108,  107,  106,  105,  104,  103,
      102,  101,  100,   99,   97,   96,   95,   94,   93,   92,
       90,   89,   88,   87,   86,   85,   81,   80,   79,   78,
       77,   76,   75,   74,   73,   71,   70,   69,   68,   67,
       66,   65,   64,   63,   62,   61,   60,   59,   58,   57,
       56,   55,   53,   52,   51,   50,   48,   47,   46,   45,
       44,   43,   42,   41,   40,   39,   38,   37,   36,   35,
       34,   33,   27,   25,   22,   20,   19,   17,   16,   13,
       11,    5,    3,  149,  149,  149,  149,  149,  149,  149,
      149,  149,  149,  149,  149,  149,  149,  149,  149,  149,

      149,  149,  149,  149,  149,  149,  149,  149,  149,  149,
      149,  149,  149,  149,  149
    } ;

static yy_state_type yy_last_accepting_state;
static char *yy_last_accepting_cpos;

/* The intent behind this definition is that it'll catch
 * any uses of REJECT which flex missed.
 */
#define REJECT reject_used_but_not_detected
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *yytext;
#line 1 "cmdline_scan.l"
#define INITIAL 0
/* cmdline_scan.l					-*- Mode: c++ -*-
 * Copyright (c) 1997, Regents of the University of California
 * $Id: cmdline_scan.l,v 1.6 1999/06/15 23:36:53 marcel Exp $
 */
#line 6 "cmdline_scan.l"
#include <iostream.h>

/* STL */
#include <string.h>

#include "gist_defs.h"
#include "cmdline_gram_tab.h"

/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */

#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap YY_PROTO(( void ));
#else
extern int yywrap YY_PROTO(( void ));
#endif
#endif

#ifndef YY_NO_UNPUT
static void yyunput YY_PROTO(( int c, char *buf_ptr ));
#endif

#ifndef yytext_ptr
static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int ));
#endif

#ifdef YY_NEED_STRLEN
static int yy_flex_strlen YY_PROTO(( yyconst char * ));
#endif

#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int yyinput YY_PROTO(( void ));
#else
static int input YY_PROTO(( void ));
#endif
#endif

#if YY_STACK_USED
static int yy_start_stack_ptr = 0;
static int yy_start_stack_depth = 0;
static int *yy_start_stack = 0;
#ifndef YY_NO_PUSH_STATE
static void yy_push_state YY_PROTO(( int new_state ));
#endif
#ifndef YY_NO_POP_STATE
static void yy_pop_state YY_PROTO(( void ));
#endif
#ifndef YY_NO_TOP_STATE
static int yy_top_state YY_PROTO(( void ));
#endif

#else
#define YY_NO_PUSH_STATE 1
#define YY_NO_POP_STATE 1
#define YY_NO_TOP_STATE 1
#endif

#ifdef YY_MALLOC_DECL
YY_MALLOC_DECL
#else
#if __STDC__
#ifndef __cplusplus
#include <stdlib.h>
#endif
#else
/* Just try to get by without declaring the routines.  This will fail
 * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
 * or sizeof(void*) != sizeof(int).
 */
#endif
#endif

/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif

/* Copy whatever the last rule matched to the standard output. */

#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
 * we now use fwrite().
 */
#define ECHO (void) fwrite( yytext, yyleng, 1, yyout )
#endif

/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
 * is returned in "result".
 */
#ifndef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
	if ( yy_current_buffer->yy_is_interactive ) \
		{ \
		int c = '*', n; \
		for ( n = 0; n < max_size && \
			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
			buf[n] = (char) c; \
		if ( c == '\n' ) \
			buf[n++] = (char) c; \
		if ( c == EOF && ferror( yyin ) ) \
			YY_FATAL_ERROR( "input in flex scanner failed" ); \
		result = n; \
		} \
	else if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \
		  && ferror( yyin ) ) \
		YY_FATAL_ERROR( "input in flex scanner failed" );
#endif

/* No semi-colon after return; correct usage is to write "yyterminate();" -
 * we don't want an extra ';' after the "return" because that will cause
 * some compilers to complain about unreachable statements.
 */
#ifndef yyterminate
#define yyterminate() return YY_NULL
#endif

/* Number of entries by which start-condition stack grows. */
#ifndef YY_START_STACK_INCR
#define YY_START_STACK_INCR 25
#endif

/* Report a fatal error. */
#ifndef YY_FATAL_ERROR
#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
#endif