| 网站首页 | 业界新闻 | 小组 | 威客 | 人才 | 下载频道 | 博客 | 代码贴 | 在线编程 | 编程论坛
欢迎加入我们,一同切磋技术
用户名:   
 
密 码:  
共有 2822 人关注过本帖
标题:我是C初学者,请哪位大哥帮我标注下代码中的注释,不甚感激
取消只看楼主 加入收藏
yzb1030
Rank: 1
等 级:新手上路
帖 子:2
专家分:0
注 册:2009-9-7
结帖率:0
收藏
已结贴  问题点数:20 回复次数:1 
我是C初学者,请哪位大哥帮我标注下代码中的注释,不甚感激

#line 3 "lex.yy.c"
#define  YY_INT_ALIGNED short int
/* A lexical scanner generated by flex */
#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5
#define YY_FLEX_SUBMINOR_VERSION 33
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif
/* First, we deal with  platform-specific or compiler-specific issues. */
/* begin standard C headers. */
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
/* end standard C headers. */
/* flex integer type definitions */
#ifndef FLEXINT_H
#define FLEXINT_H
/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
#if __STDC_VERSION__ >= 199901L
/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
 * if you want the limit (max/min) macros for int types.
 */
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS 1
#endif
#include <inttypes.h>
typedef int8_t flex_int8_t;
typedef uint8_t flex_uint8_t;
typedef int16_t flex_int16_t;
typedef uint16_t flex_uint16_t;
typedef int32_t flex_int32_t;
typedef uint32_t flex_uint32_t;
#else
typedef signed char flex_int8_t;
typedef short int flex_int16_t;
typedef int flex_int32_t;
typedef unsigned char flex_uint8_t;
typedef unsigned short int flex_uint16_t;
typedef unsigned int flex_uint32_t;
#endif /* ! C99 */
/* Limits of integral types. */
#ifndef INT8_MIN
#define INT8_MIN               (-128)
#endif
#ifndef INT16_MIN
#define INT16_MIN              (-32767-1)
#endif
#ifndef INT32_MIN
#define INT32_MIN              (-2147483647-1)
#endif
#ifndef INT8_MAX
#define INT8_MAX               (127)
#endif
#ifndef INT16_MAX
#define INT16_MAX              (32767)
#endif
#ifndef INT32_MAX
#define INT32_MAX              (2147483647)
#endif
#ifndef UINT8_MAX
#define UINT8_MAX              (255U)
#endif
#ifndef UINT16_MAX
#define UINT16_MAX             (65535U)
#endif
#ifndef UINT32_MAX
#define UINT32_MAX             (4294967295U)
#endif
#endif /* ! FLEXINT_H */
#ifdef __cplusplus
/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST
#else    /* ! __cplusplus */
#if __STDC__
#define YY_USE_CONST
#endif    /* __STDC__ */
#endif    /* ! __cplusplus */
#ifdef YY_USE_CONST
#define yyconst const
#else
#define yyconst
#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. */
#ifndef YY_BUF_SIZE
#define YY_BUF_SIZE 16384
#endif
/* 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
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
    #define YY_LESS_LINENO(n)
   
/* Return all but the first "n" matched characters back to the input stream. */
#define yyless(n) \
    do \
        { \
        /* Undo effects of setting up yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
        *yy_cp = (yy_hold_char); \
        YY_RESTORE_YY_MORE_OFFSET \
        (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - 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).
 */
#ifndef YY_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef unsigned int yy_size_t;
#endif
#ifndef YY_STRUCT_YY_BUFFER_STATE
#define YY_STRUCT_YY_BUFFER_STATE
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;
    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;
#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 */
/* 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 = 0; /**< Stack as an array. */
/* 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_buffer_stack) \
                          ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
                          : NULL)
/* 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_buffer_stack)[(yy_buffer_stack_top)]
/* 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 = 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;
void yyrestart (FILE *input_file  );
void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer  );
YY_BUFFER_STATE yy_create_buffer (FILE *file,int size  );
void yy_delete_buffer (YY_BUFFER_STATE b  );
void yy_flush_buffer (YY_BUFFER_STATE b  );
void yypush_buffer_state (YY_BUFFER_STATE new_buffer  );
void yypop_buffer_state (void );
static void yyensure_buffer_stack (void );
static void yy_load_buffer_state (void );
static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file  );
#define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER )
YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size  );
YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str  );
YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,int len  );
void *yyalloc (yy_size_t  );
void *yyrealloc (void *,yy_size_t  );
void yyfree (void *  );
#define yy_new_buffer yy_create_buffer
#define yy_set_interactive(is_interactive) \
    { \
    if ( ! YY_CURRENT_BUFFER ){ \
        yyensure_buffer_stack (); \
        YY_CURRENT_BUFFER_LVALUE =    \
            yy_create_buffer(yyin,YY_BUF_SIZE ); \
    } \
    YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
    }
#define yy_set_bol(at_bol) \
    { \
    if ( ! YY_CURRENT_BUFFER ){\
        yyensure_buffer_stack (); \
        YY_CURRENT_BUFFER_LVALUE =    \
            yy_create_buffer(yyin,YY_BUF_SIZE ); \
    } \
    YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
    }
#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
/* Begin user sect3 */
typedef unsigned char YY_CHAR;
FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
typedef int yy_state_type;
extern int yylineno;
int yylineno = 1;
extern char *yytext;
#define yytext_ptr yytext
static yy_state_type yy_get_previous_state (void );
static yy_state_type yy_try_NUL_trans (yy_state_type current_state  );
static int yy_get_next_buffer (void );
static void yy_fatal_error (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 = (size_t) (yy_cp - yy_bp); \
    (yy_hold_char) = *yy_cp; \
    *yy_cp = '\0'; \
    (yy_c_buf_p) = yy_cp;
#define YY_NUM_RULES 5
#define YY_END_OF_BUFFER 6
/* This struct is not used in this scanner,
   but its presence is necessary. */
struct yy_trans_info
    {
    flex_int32_t yy_verify;
    flex_int32_t yy_nxt;
    };
static yyconst flex_int16_t yy_accept[13] =
    {   0,
        0,    0,    6,    4,    2,    2,    1,    3,    2,    1,
        3,    0
    } ;
static yyconst flex_int32_t yy_ec[256] =
    {   0,
        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
        1,    2,    1,    4,    1,    1,    1,    1,    4,    1,
        1,    1,    1,    1,    1,    4,    1,    5,    5,    5,
        5,    5,    5,    5,    5,    5,    5,    1,    1,    1,
        1,    1,    1,    1,    4,    4,    4,    4,    4,    4,
        4,    4,    4,    4,    4,    4,    4,    4,    4,    4,
        4,    4,    4,    4,    4,    4,    4,    4,    4,    4,
        4,    4,    4,    4,    4,    4,    4,    4,    4,    4,
        4,    4,    4,    4,    4,    4,    4,    4,    4,    4,
        4,    4,    4,    4,    4,    4,    4,    4,    4,    4,
        4,    4,    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,    1,    1,    1,    1
    } ;
static yyconst flex_int32_t yy_meta[6] =
    {   0,
        1,    2,    2,    3,    4
    } ;
static yyconst flex_int16_t yy_base[16] =
    {   0,
        0,    0,    9,   10,    0,    0,    0,    0,    0,    0,
        0,   10,    6,    4,    2
    } ;
static yyconst flex_int16_t yy_def[16] =
    {   0,
       12,    1,   12,   12,   13,   13,   14,   15,   13,   14,
       15,    0,   12,   12,   12
    } ;
static yyconst flex_int16_t yy_nxt[16] =
    {   0,
        4,    5,    6,    7,    8,   11,   10,    9,   12,    3,
       12,   12,   12,   12,   12
    } ;
static yyconst flex_int16_t yy_chk[16] =
    {   0,
        1,    1,    1,    1,    1,   15,   14,   13,    3,   12,
       12,   12,   12,   12,   12
    } ;
static yy_state_type yy_last_accepting_state;
static char *yy_last_accepting_cpos;
extern int yy_flex_debug;
int yy_flex_debug = 0;
/* 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 "c2vhdl.lex"
#line 2 "c2vhdl.lex"
    int wordCount = 0;
#line 460 "lex.yy.c"
#define INITIAL 0
#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.
 */
#include <unistd.h>
#endif
#ifndef YY_EXTRA_TYPE
#define YY_EXTRA_TYPE void *
#endif
static int yy_init_globals (void );
/* Macros after this point can all be overridden by user definitions in
 * section 1.
 */
#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap (void );
#else
extern int yywrap (void );
#endif
#endif
    static void yyunput (int c,char *buf_ptr  );
   
#ifndef yytext_ptr
static void yy_flex_strncpy (char *,yyconst char *,int );
#endif
#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * );
#endif
#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int yyinput (void );
#else
static int input (void );
#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_LVALUE->yy_is_interactive ) \
        { \
        int c = '*'; \
        size_t 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 \
        { \
        errno=0; \
        while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
            { \
            if( errno != EINTR) \
                { \
                YY_FATAL_ERROR( "input in flex scanner failed" ); \
                break; \
                } \
            errno=0; \
            clearerr(yyin); \
            } \
        }\
\
#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
/* end tables serialization structures and prototypes */
/* Default declaration of generated scanner - a define so the user can
 * easily add parameters.
 */
#ifndef YY_DECL
#define YY_DECL_IS_OURS 1
extern int yylex (void);
#define YY_DECL int yylex (void)
#endif /* !YY_DECL */
/* Code executed at the beginning of each rule, after yytext and yyleng
 * have been set up.
 */
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif
/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif
#define YY_RULE_SETUP \
    YY_USER_ACTION
/** The main scanner function which does all the work.
 */
YY_DECL
{
    register yy_state_type yy_current_state;
    register char *yy_cp, *yy_bp;
    register int yy_act;
   
#line 11 "c2vhdl.lex"
#line 615 "lex.yy.c"
    if ( !(yy_init) )
        {
        (yy_init) = 1;
#ifdef YY_USER_INIT
        YY_USER_INIT;
#endif
        if ( ! (yy_start) )
            (yy_start) = 1;    /* first start state */
        if ( ! yyin )
            yyin = stdin;
        if ( ! yyout )
            yyout = stdout;
        if ( ! YY_CURRENT_BUFFER ) {
            yyensure_buffer_stack ();
            YY_CURRENT_BUFFER_LVALUE =
                yy_create_buffer(yyin,YY_BUF_SIZE );
        }
        yy_load_buffer_state( );
        }
    while ( 1 )        /* loops until end-of-file is reached */
        {
        yy_cp = (yy_c_buf_p);
        /* Support of yytext. */
        *yy_cp = (yy_hold_char);
        /* yy_bp points to the position in yy_ch_buf of the start of
         * the current run.
         */
        yy_bp = yy_cp;
        yy_current_state = (yy_start);
yy_match:
        do
            {
            register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
            if ( yy_accept[yy_current_state] )
                {
                (yy_last_accepting_state) = yy_current_state;
                (yy_last_accepting_cpos) = yy_cp;
                }
            while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
                {
                yy_current_state = (int) yy_def[yy_current_state];
                if ( yy_current_state >= 13 )
                    yy_c = yy_meta[(unsigned int) yy_c];
                }
            yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
            ++yy_cp;
            }
        while ( yy_base[yy_current_state] != 10 );
yy_find_action:
        yy_act = yy_accept[yy_current_state];
        if ( yy_act == 0 )
            { /* have to back up */
            yy_cp = (yy_last_accepting_cpos);
            yy_current_state = (yy_last_accepting_state);
            yy_act = yy_accept[yy_current_state];
            }
        YY_DO_BEFORE_ACTION;
do_action:    /* This label is used only to access EOF actions. */
        switch ( yy_act )
    { /* beginning of action switch */
            case 0: /* must back up */
            /* undo the effects of YY_DO_BEFORE_ACTION */
            *yy_cp = (yy_hold_char);
            yy_cp = (yy_last_accepting_cpos);
            yy_current_state = (yy_last_accepting_state);
            goto yy_find_action;
case 1:
YY_RULE_SETUP
#line 12 "c2vhdl.lex"
{
    printf("%s\n", yytext);
    wordCount++;
    /*increase the word count by one*/
}
    YY_BREAK
case 2:
/* rule 2 can match eol */
YY_RULE_SETUP
#line 18 "c2vhdl.lex"
{
    /* do nothing*/
}
    YY_BREAK
case 3:
YY_RULE_SETUP
#line 22 "c2vhdl.lex"
{
    /* one may want to add some processing here*/
}
    YY_BREAK
case 4:
YY_RULE_SETUP
#line 26 "c2vhdl.lex"
{
    /* do nothing*/
}
    YY_BREAK
case 5:
YY_RULE_SETUP
#line 29 "c2vhdl.lex"
ECHO;
    YY_BREAK
#line 734 "lex.yy.c"
case YY_STATE_EOF(INITIAL):
    yyterminate();
    case YY_END_OF_BUFFER:
        {
        /* Amount of text matched not including the EOB char. */
        int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
        /* Undo the effects of YY_DO_BEFORE_ACTION. */
        *yy_cp = (yy_hold_char);
        YY_RESTORE_YY_MORE_OFFSET
        if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
            {
            /* We're scanning a new file or input source.  It's
             * possible that this happened because the user
             * just pointed yyin at a new source and called
             * yylex().  If so, then we have to assure
             * consistency between YY_CURRENT_BUFFER and our
             * globals.  Here is the right place to do so, because
             * this is the first action (other than possibly a
             * back-up) that will match for the new input source.
             */
            (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
            YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin;
            YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
            }
        /* Note that here we test for yy_c_buf_p "<=" to the position
         * of the first EOB in the buffer, since yy_c_buf_p will
         * already have been incremented past the NUL character
         * (since all states make transitions on EOB to the
         * end-of-buffer state).  Contrast this with the test
         * in input().
         */
        if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
            { /* This was really a NUL. */
            yy_state_type yy_next_state;
            (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
            yy_current_state = yy_get_previous_state(  );
            /* Okay, we're now positioned to make the NUL
             * transition.  We couldn't have
             * yy_get_previous_state() go ahead and do it
             * for us because it doesn't know how to deal
             * with the possibility of jamming (and we don't
             * want to build jamming into it because then it
             * will run more slowly).
             */
            yy_next_state = yy_try_NUL_trans( yy_current_state );
            yy_bp = (yytext_ptr) + YY_MORE_ADJ;
            if ( yy_next_state )
                {
                /* Consume the NUL. */
                yy_cp = ++(yy_c_buf_p);
                yy_current_state = yy_next_state;
                goto yy_match;
                }
            else
                {
                yy_cp = (yy_c_buf_p);
                goto yy_find_action;
                }
            }
        else switch ( yy_get_next_buffer(  ) )
            {
            case EOB_ACT_END_OF_FILE:
                {
                (yy_did_buffer_switch_on_eof) = 0;
                if ( yywrap( ) )
                    {
                    /* Note: because we've taken care in
                     * yy_get_next_buffer() to have set up
                     * yytext, we can now set up
                     * yy_c_buf_p so that if some total
                     * hoser (like flex itself) wants to
                     * call the scanner after we return the
                     * YY_NULL, it'll still work - another
                     * YY_NULL will get returned.
                     */
                    (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
                    yy_act = YY_STATE_EOF(YY_START);
                    goto do_action;
                    }
                else
                    {
                    if ( ! (yy_did_buffer_switch_on_eof) )
                        YY_NEW_FILE;
                    }
                break;
                }
            case EOB_ACT_CONTINUE_SCAN:
                (yy_c_buf_p) =
                    (yytext_ptr) + yy_amount_of_matched_text;
                yy_current_state = yy_get_previous_state(  );
                yy_cp = (yy_c_buf_p);
                yy_bp = (yytext_ptr) + YY_MORE_ADJ;
                goto yy_match;
            case EOB_ACT_LAST_MATCH:
                (yy_c_buf_p) =
                &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
                yy_current_state = yy_get_previous_state(  );
                yy_cp = (yy_c_buf_p);
                yy_bp = (yytext_ptr) + YY_MORE_ADJ;
                goto yy_find_action;
            }
        break;
        }
    default:
        YY_FATAL_ERROR(
            "fatal flex scanner internal error--no action found" );
    } /* end of action switch */
        } /* end of scanning one token */
} /* end of yylex */
/* yy_get_next_buffer - try to read in a new buffer
 *
 * Returns a code representing an action:
 *    EOB_ACT_LAST_MATCH -
 *    EOB_ACT_CONTINUE_SCAN - continue scanning from current position
 *    EOB_ACT_END_OF_FILE - end of file
 */
static int yy_get_next_buffer (void)
{
        register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
    register char *source = (yytext_ptr);
    register int number_to_move, i;
    int ret_val;
    if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
        YY_FATAL_ERROR(
        "fatal flex scanner internal error--end of buffer missed" );
    if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
        { /* Don't try to fill the buffer, so this is an EOF. */
        if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
            {
            /* We matched a single character, the EOB, so
             * treat this as a final EOF.
             */
            return EOB_ACT_END_OF_FILE;
            }
        else
            {
            /* We matched some text prior to the EOB, first
             * process it.
             */
            return EOB_ACT_LAST_MATCH;
            }
        }
    /* Try to read more data. */
    /* First move last chars to start of buffer. */
    number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
    for ( i = 0; i < number_to_move; ++i )
        *(dest++) = *(source++);
    if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
        /* don't do the read, it's not guaranteed to return an EOF,
         * just force an EOF
         */
        YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
    else
        {
            int num_to_read =
            YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
        while ( num_to_read <= 0 )
            { /* Not enough room in the buffer - grow it. */
            /* just a shorter name for the current buffer */
            YY_BUFFER_STATE b = YY_CURRENT_BUFFER;
            int yy_c_buf_p_offset =
                (int) ((yy_c_buf_p) - b->yy_ch_buf);
            if ( b->yy_is_our_buffer )
                {
                int new_size = b->yy_buf_size * 2;
                if ( new_size <= 0 )
                    b->yy_buf_size += b->yy_buf_size / 8;
                else
                    b->yy_buf_size *= 2;
                b->yy_ch_buf = (char *)
                    /* Include room in for 2 EOB chars. */
                    yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2  );
                }
            else
                /* Can't grow it, we don't own it. */
                b->yy_ch_buf = 0;
            if ( ! b->yy_ch_buf )
                YY_FATAL_ERROR(
                "fatal error - scanner input buffer overflow" );
            (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
            num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
                        number_to_move - 1;
            }
        if ( num_to_read > YY_READ_BUF_SIZE )
            num_to_read = YY_READ_BUF_SIZE;
        /* Read in more data. */
        YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
            (yy_n_chars), num_to_read );
        YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
        }
    if ( (yy_n_chars) == 0 )
        {
        if ( number_to_move == YY_MORE_ADJ )
            {
            ret_val = EOB_ACT_END_OF_FILE;
            yyrestart(yyin  );
            }
        else
            {
            ret_val = EOB_ACT_LAST_MATCH;
            YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
                YY_BUFFER_EOF_PENDING;
            }
        }
    else
        ret_val = EOB_ACT_CONTINUE_SCAN;
    (yy_n_chars) += number_to_move;
    YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
    YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
    (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
    return ret_val;
}
/* yy_get_previous_state - get the state just before the EOB char was reached */
    static yy_state_type yy_get_previous_state (void)
{
    register yy_state_type yy_current_state;
    register char *yy_cp;
   
    yy_current_state = (yy_start);
    for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
        {
        register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
        if ( yy_accept[yy_current_state] )
            {
            (yy_last_accepting_state) = yy_current_state;
            (yy_last_accepting_cpos) = yy_cp;
            }
        while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
            {
            yy_current_state = (int) yy_def[yy_current_state];
            if ( yy_current_state >= 13 )
                yy_c = yy_meta[(unsigned int) yy_c];
            }
        yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
        }
    return yy_current_state;
}
/* yy_try_NUL_trans - try to make a transition on the NUL character
 *
 * synopsis
 *    next_state = yy_try_NUL_trans( current_state );
 */
    static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
{
    register int yy_is_jam;
        register char *yy_cp = (yy_c_buf_p);
    register YY_CHAR yy_c = 1;
    if ( yy_accept[yy_current_state] )
        {
        (yy_last_accepting_state) = yy_current_state;
        (yy_last_accepting_cpos) = yy_cp;
        }
    while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
        {
        yy_current_state = (int) yy_def[yy_current_state];
        if ( yy_current_state >= 13 )
            yy_c = yy_meta[(unsigned int) yy_c];
        }
    yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
    yy_is_jam = (yy_current_state == 12);
    return yy_is_jam ? 0 : yy_current_state;
}
    static void yyunput (int c, register char * yy_bp )
{
    register char *yy_cp;
   
    yy_cp = (yy_c_buf_p);
    /* undo effects of setting up yytext */
    *yy_cp = (yy_hold_char);
    if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
        { /* need to shift things up to make room */
        /* +2 for EOB chars. */
        register int number_to_move = (yy_n_chars) + 2;
        register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
                    YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
        register char *source =
                &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];
        while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
            *--dest = *--source;
        yy_cp += (int) (dest - source);
        yy_bp += (int) (dest - source);
        YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
            (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
        if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
            YY_FATAL_ERROR( "flex scanner push-back overflow" );
        }
    *--yy_cp = (char) c;
    (yytext_ptr) = yy_bp;
    (yy_hold_char) = *yy_cp;
    (yy_c_buf_p) = yy_cp;
}
#ifndef YY_NO_INPUT
#ifdef __cplusplus
    static int yyinput (void)
#else
    static int input  (void)
#endif
{
    int c;
   
    *(yy_c_buf_p) = (yy_hold_char);
    if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
        {
        /* yy_c_buf_p now points to the character we want to return.
         * If this occurs *before* the EOB characters, then it's a
         * valid NUL; if not, then we've hit the end of the buffer.
         */
        if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
            /* This was really a NUL. */
            *(yy_c_buf_p) = '\0';
        else
            { /* need more input */
            int offset = (yy_c_buf_p) - (yytext_ptr);
            ++(yy_c_buf_p);
            switch ( yy_get_next_buffer(  ) )
                {
                case EOB_ACT_LAST_MATCH:
                    /* This happens because yy_g_n_b()
                     * sees that we've accumulated a
                     * token and flags that we need to
                     * try matching the token before
                     * proceeding.  But for input(),
                     * there's no matching to consider.
                     * So convert the EOB_ACT_LAST_MATCH
                     * to EOB_ACT_END_OF_FILE.
                     */
                    /* Reset buffer status. */
                    yyrestart(yyin );
                    /*FALLTHROUGH*/
                case EOB_ACT_END_OF_FILE:
                    {
                    if ( yywrap( ) )
                        return EOF;
                    if ( ! (yy_did_buffer_switch_on_eof) )
                        YY_NEW_FILE;
#ifdef __cplusplus
                    return yyinput();
#else
                    return input();
#endif
                    }
                case EOB_ACT_CONTINUE_SCAN:
                    (yy_c_buf_p) = (yytext_ptr) + offset;
                    break;
                }
            }
        }
    c = *(unsigned char *) (yy_c_buf_p);    /* cast for 8-bit char's */
    *(yy_c_buf_p) = '\0';    /* preserve yytext */
    (yy_hold_char) = *++(yy_c_buf_p);
    return c;
}
#endif    /* ifndef YY_NO_INPUT */
/** Immediately switch to a different input stream.
 * @param input_file A readable stream.
 *
 * @note This function does not reset the start condition to @c INITIAL .
 */
    void yyrestart  (FILE * input_file )
{
   
    if ( ! YY_CURRENT_BUFFER ){
        yyensure_buffer_stack ();
        YY_CURRENT_BUFFER_LVALUE =
            yy_create_buffer(yyin,YY_BUF_SIZE );
    }
    yy_init_buffer(YY_CURRENT_BUFFER,input_file );
    yy_load_buffer_state( );
}
/** Switch to a different input buffer.
 * @param new_buffer The new input buffer.
 *
 */
    void yy_switch_to_buffer  (YY_BUFFER_STATE  new_buffer )
{
   
    /* TODO. We should be able to replace this entire function body
     * with
     *        yypop_buffer_state();
     *        yypush_buffer_state(new_buffer);
     */
    yyensure_buffer_stack ();
    if ( YY_CURRENT_BUFFER == new_buffer )
        return;
    if ( YY_CURRENT_BUFFER )
        {
        /* Flush out information for old buffer. */
        *(yy_c_buf_p) = (yy_hold_char);
        YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
        YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
        }
    YY_CURRENT_BUFFER_LVALUE = new_buffer;
    yy_load_buffer_state( );
    /* We don't actually know whether we did this switch during
     * EOF (yywrap()) processing, but the only time this flag
     * is looked at is after yywrap() is called, so it's safe
     * to go ahead and always set it.
     */
    (yy_did_buffer_switch_on_eof) = 1;
}
static void yy_load_buffer_state  (void)
{
        (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
    (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
    yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
    (yy_hold_char) = *(yy_c_buf_p);
}
/** Allocate and initialize an input buffer state.
 * @param file A readable stream.
 * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
 *
 * @return the allocated buffer state.
 */
    YY_BUFFER_STATE yy_create_buffer  (FILE * file, int  size )
{
    YY_BUFFER_STATE b;
   
    b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
    if ( ! b )
        YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
    b->yy_buf_size = size;
    /* yy_ch_buf has to be 2 characters longer than the size given because
     * we need to put in 2 end-of-buffer characters.
     */
    b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2  );
    if ( ! b->yy_ch_buf )
        YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
    b->yy_is_our_buffer = 1;
    yy_init_buffer(b,file );
    return b;
}
/** Destroy the buffer.
 * @param b a buffer created with yy_create_buffer()
 *
 */
    void yy_delete_buffer (YY_BUFFER_STATE  b )
{
   
    if ( ! b )
        return;
    if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
        YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
    if ( b->yy_is_our_buffer )
        yyfree((void *) b->yy_ch_buf  );
    yyfree((void *) b  );
}
#ifndef __cplusplus
extern int isatty (int );
#endif /* __cplusplus */
   
/* Initializes or reinitializes a buffer.
 * This function is sometimes called more than once on the same buffer,
 * such as during a yyrestart() or at EOF.
 */
    static void yy_init_buffer  (YY_BUFFER_STATE  b, FILE * file )
{
    int oerrno = errno;
   
    yy_flush_buffer(b );
    b->yy_input_file = file;
    b->yy_fill_buffer = 1;
    /* If b is the current buffer, then yy_init_buffer was _probably_
     * called from yyrestart() or through yy_get_next_buffer.
     * In that case, we don't want to reset the lineno or column.
     */
    if (b != YY_CURRENT_BUFFER){
        b->yy_bs_lineno = 1;
        b->yy_bs_column = 0;
    }
        b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
   
    errno = oerrno;
}
/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
 * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
 *
 */
    void yy_flush_buffer (YY_BUFFER_STATE  b )
{
        if ( ! b )
        return;
    b->yy_n_chars = 0;
    /* We always need two end-of-buffer characters.  The first causes
     * a transition to the end-of-buffer state.  The second causes
     * a jam in that state.
     */
    b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
    b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
    b->yy_buf_pos = &b->yy_ch_buf[0];
    b->yy_at_bol = 1;
    b->yy_buffer_status = YY_BUFFER_NEW;
    if ( b == YY_CURRENT_BUFFER )
        yy_load_buffer_state( );
}
/** Pushes the new state onto the stack. The new state becomes
 *  the current state. This function will allocate the stack
 *  if necessary.
 *  @param new_buffer The new state.
 *
 */
void yypush_buffer_state (YY_BUFFER_STATE new_buffer )
{
        if (new_buffer == NULL)
        return;
    yyensure_buffer_stack();
    /* This block is copied from yy_switch_to_buffer. */
    if ( YY_CURRENT_BUFFER )
        {
        /* Flush out information for old buffer. */
        *(yy_c_buf_p) = (yy_hold_char);
        YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
        YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
        }
    /* Only push if top exists. Otherwise, replace top. */
    if (YY_CURRENT_BUFFER)
        (yy_buffer_stack_top)++;
    YY_CURRENT_BUFFER_LVALUE = new_buffer;
    /* copied from yy_switch_to_buffer. */
    yy_load_buffer_state( );
    (yy_did_buffer_switch_on_eof) = 1;
}
/** Removes and deletes the top of the stack, if present.
 *  The next element becomes the new top.
 *
 */
void yypop_buffer_state (void)
{
        if (!YY_CURRENT_BUFFER)
        return;
    yy_delete_buffer(YY_CURRENT_BUFFER );
    YY_CURRENT_BUFFER_LVALUE = NULL;
    if ((yy_buffer_stack_top) > 0)
        --(yy_buffer_stack_top);
    if (YY_CURRENT_BUFFER) {
        yy_load_buffer_state( );
        (yy_did_buffer_switch_on_eof) = 1;
    }
}
/* Allocates the stack if it does not exist.
 *  Guarantees space for at least one push.
 */
static void yyensure_buffer_stack (void)
{
    int num_to_alloc;
   
    if (!(yy_buffer_stack)) {
        /* First allocation is just for 2 elements, since we don't know if this
         * scanner will even need a stack. We use 2 instead of 1 to avoid an
         * immediate realloc on the next call.
         */
        num_to_alloc = 1;
        (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc
                                (num_to_alloc * sizeof(struct yy_buffer_state*)
                                );
      
        memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
               
        (yy_buffer_stack_max) = num_to_alloc;
        (yy_buffer_stack_top) = 0;
        return;
    }
    if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
        /* Increase the buffer to prepare for a possible push. */
        int grow_size = 8 /* arbitrary grow size */;
        num_to_alloc = (yy_buffer_stack_max) + grow_size;
        (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc
                                ((yy_buffer_stack),
                                num_to_alloc * sizeof(struct yy_buffer_state*)
                                );
        /* zero only the new slots.*/
        memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
        (yy_buffer_stack_max) = num_to_alloc;
    }
}
/** Setup the input buffer state to scan directly from a user-specified character buffer.
 * @param base the character buffer
 * @param size the size in bytes of the character buffer
 *
 * @return the newly allocated buffer state object.
 */
YY_BUFFER_STATE yy_scan_buffer  (char * base, yy_size_t  size )
{
    YY_BUFFER_STATE b;
   
    if ( size < 2 ||
         base[size-2] != YY_END_OF_BUFFER_CHAR ||
         base[size-1] != YY_END_OF_BUFFER_CHAR )
        /* They forgot to leave room for the EOB's. */
        return 0;
    b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
    if ( ! b )
        YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );
    b->yy_buf_size = size - 2;    /* "- 2" to take care of EOB's */
    b->yy_buf_pos = b->yy_ch_buf = base;
    b->yy_is_our_buffer = 0;
    b->yy_input_file = 0;
    b->yy_n_chars = b->yy_buf_size;
    b->yy_is_interactive = 0;
    b->yy_at_bol = 1;
    b->yy_fill_buffer = 0;
    b->yy_buffer_status = YY_BUFFER_NEW;
    yy_switch_to_buffer(b  );
    return b;
}
/** Setup the input buffer state to scan a string. The next call to yylex() will
 * scan from a @e copy of @a str.
 * @param str a NUL-terminated string to scan
 *
 * @return the newly allocated buffer state object.
 * @note If you want to scan bytes that may contain NUL values, then use
 *       yy_scan_bytes() instead.
 */
YY_BUFFER_STATE yy_scan_string (yyconst char * yystr )
{
   
    return yy_scan_bytes(yystr,strlen(yystr) );
}
/** Setup the input buffer state to scan the given bytes. The next call to yylex() will
 * scan from a @e copy of @a bytes.
 * @param bytes the byte buffer to scan
 * @param len the number of bytes in the buffer pointed to by @a bytes.
 *
 * @return the newly allocated buffer state object.
 */
YY_BUFFER_STATE yy_scan_bytes  (yyconst char * yybytes, int  _yybytes_len )
{
    YY_BUFFER_STATE b;
    char *buf;
    yy_size_t n;
    int i;
   
    /* Get memory for full buffer, including space for trailing EOB's. */
    n = _yybytes_len + 2;
    buf = (char *) yyalloc(n  );
    if ( ! buf )
        YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );
    for ( i = 0; i < _yybytes_len; ++i )
        buf[i] = yybytes[i];
    buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
    b = yy_scan_buffer(buf,n );
    if ( ! b )
        YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" );
    /* It's okay to grow etc. this buffer, and we should throw it
     * away when we're done.
     */
    b->yy_is_our_buffer = 1;
    return b;
}
#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif
static void yy_fatal_error (yyconst char* msg )
{
        (void) fprintf( stderr, "%s\n", msg );
    exit( YY_EXIT_FAILURE );
}
/* Redefine yyless() so it works in section 3 code. */
#undef yyless
#define yyless(n) \
    do \
        { \
        /* Undo effects of setting up yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
        yytext[yyleng] = (yy_hold_char); \
        (yy_c_buf_p) = yytext + yyless_macro_arg; \
        (yy_hold_char) = *(yy_c_buf_p); \
        *(yy_c_buf_p) = '\0'; \
        yyleng = yyless_macro_arg; \
        } \
    while ( 0 )
/* Accessor  methods (get/set functions) to struct members. */
/** Get the current line number.
 *
 */
int yyget_lineno  (void)
{
      
    return yylineno;
}
/** Get the input stream.
 *
 */
FILE *yyget_in  (void)
{
        return yyin;
}
/** Get the output stream.
 *
 */
FILE *yyget_out  (void)
{
        return yyout;
}
/** Get the length of the current token.
 *
 */
int yyget_leng  (void)
{
        return yyleng;
}
/** Get the current token.
 *
 */
char *yyget_text  (void)
{
        return yytext;
}
/** Set the current line number.
 * @param line_number
 *
 */
void yyset_lineno (int  line_number )
{
   
    yylineno = line_number;
}
/** Set the input stream. This does not discard the current
 * input buffer.
 * @param in_str A readable stream.
 *
 * @see yy_switch_to_buffer
 */
void yyset_in (FILE *  in_str )
{
        yyin = in_str ;
}
void yyset_out (FILE *  out_str )
{
        yyout = out_str ;
}
int yyget_debug  (void)
{
        return yy_flex_debug;
}
void yyset_debug (int  bdebug )
{
        yy_flex_debug = bdebug ;
}
static int yy_init_globals (void)
{
        /* Initialization is the same as for the non-reentrant scanner.
     * This function is called from yylex_destroy(), so don't allocate here.
     */
    (yy_buffer_stack) = 0;
    (yy_buffer_stack_top) = 0;
    (yy_buffer_stack_max) = 0;
    (yy_c_buf_p) = (char *) 0;
    (yy_init) = 0;
    (yy_start) = 0;
/* Defined in main.c */
#ifdef YY_STDINIT
    yyin = stdin;
    yyout = stdout;
#else
    yyin = (FILE *) 0;
    yyout = (FILE *) 0;
#endif
    /* For future reference: Set errno on error, since we are called by
     * yylex_init()
     */
    return 0;
}
/* yylex_destroy is for both reentrant and non-reentrant scanners. */
int yylex_destroy  (void)
{
   
    /* Pop the buffer stack, destroying each element. */
    while(YY_CURRENT_BUFFER){
        yy_delete_buffer(YY_CURRENT_BUFFER  );
        YY_CURRENT_BUFFER_LVALUE = NULL;
        yypop_buffer_state();
    }
    /* Destroy the stack itself. */
    yyfree((yy_buffer_stack) );
    (yy_buffer_stack) = NULL;
    /* Reset the globals. This is important in a non-reentrant scanner so the next time
     * yylex() is called, initialization will occur. */
    yy_init_globals( );
    return 0;
}
/*
 * Internal utility routines.
 */
#ifndef yytext_ptr
static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
{
    register int i;
    for ( i = 0; i < n; ++i )
        s1[i] = s2[i];
}
#endif
#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * s )
{
    register int n;
    for ( n = 0; s[n]; ++n )
        ;
    return n;
}
#endif
void *yyalloc (yy_size_t  size )
{
    return (void *) malloc( size );
}
void *yyrealloc  (void * ptr, yy_size_t  size )
{
    /* The cast to (char *) in the following accommodates both
     * implementations that use char* generic pointers, and those
     * that use void* generic pointers.  It works with the latter
     * because both ANSI C and C++ allow castless assignment from
     * any pointer type to void*, and deal with argument conversions
     * as though doing an assignment.
     */
    return (void *) realloc( (char *) ptr, size );
}
void yyfree (void * ptr )
{
    free( (char *) ptr );    /* see yyrealloc() for (char *) cast */
}
#define YYTABLES_NAME "yytables"
#line 29 "c2vhdl.lex"

int main()
{
    yylex(); /* start the analysis*/
    printf(" Number of words: %d\n", wordCount);
    return 0;
}
int yywrap()
{
    return 1;
}
搜索更多相关主题的帖子: 注释 感激 标注 代码 
2009-09-07 23:13
yzb1030
Rank: 1
等 级:新手上路
帖 子:2
专家分:0
注 册:2009-9-7
收藏
得分:0 
希望哪位大哥能帮我指点下这个程序大致用途,最好能帮忙标注,谢谢!
2009-09-08 09:12
快速回复:我是C初学者,请哪位大哥帮我标注下代码中的注释,不甚感激
数据加载中...
 
   



关于我们 | 广告合作 | 编程中国 | 清除Cookies | TOP | 手机版

编程中国 版权所有,并保留所有权利。
Powered by Discuz, Processed in 0.029530 second(s), 8 queries.
Copyright©2004-2024, BCCN.NET, All Rights Reserved