858 lines
20 KiB
Text
858 lines
20 KiB
Text
/* A lexical scanner generated by flex */
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/* scanner skeleton version:
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* $Id$
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*/
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#define FLEX_SCANNER
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#define ACK_MOD
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#include <stdio.h>
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/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
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#ifdef c_plusplus
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#ifndef __cplusplus
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#define __cplusplus
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#endif
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#endif
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#ifdef __cplusplus
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#include <stdlib.h>
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#include <osfcn.h>
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/* use prototypes in function declarations */
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#define YY_USE_PROTOS
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/* the "const" storage-class-modifier is valid */
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#define YY_USE_CONST
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#else /* ! __cplusplus */
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#ifdef __STDC__
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#ifdef __GNUC__
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#include <stddef.h>
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void *malloc( size_t );
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void free( void* );
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#else
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#include <stdlib.h>
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#endif /* __GNUC__ */
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#define YY_USE_PROTOS
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#define YY_USE_CONST
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#endif /* __STDC__ */
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#endif /* ! __cplusplus */
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#ifdef __TURBOC__
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#define YY_USE_CONST
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#endif
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#ifndef YY_USE_CONST
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#define const
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#endif
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#ifdef YY_USE_PROTOS
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#define YY_PROTO(proto) proto
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#else
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#define YY_PROTO(proto) ()
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/* we can't get here if it's an ANSI C compiler, or a C++ compiler,
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* so it's got to be a K&R compiler, and therefore there's no standard
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* place from which to include these definitions
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*/
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char *malloc();
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int free();
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int read();
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#endif
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/* amount of stuff to slurp up with each read */
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#ifndef YY_READ_BUF_SIZE
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#define YY_READ_BUF_SIZE 8192
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#endif
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/* returned upon end-of-file */
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#define YY_END_TOK 0
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/* copy whatever the last rule matched to the standard output */
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/* cast to (char *) is because for 8-bit chars, yytext is (unsigned char *) */
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/* this used to be an fputs(), but since the string might contain NUL's,
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* we now use fwrite()
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*/
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#define ECHO (void) fwrite( (char *) yytext, yyleng, 1, yyout )
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/* gets input and stuffs it into "buf". number of characters read, or YY_NULL,
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* is returned in "result".
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*/
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#define YY_INPUT(buf,result,max_size) \
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if ( (result = read( fileno(yyin), (char *) buf, max_size )) < 0 ) \
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YY_FATAL_ERROR( "read() in flex scanner failed" );
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#define YY_NULL 0
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/* no semi-colon after return; correct usage is to write "yyterminate();" -
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* we don't want an extra ';' after the "return" because that will cause
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* some compilers to complain about unreachable statements.
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*/
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#define yyterminate() return ( YY_NULL )
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/* report a fatal error */
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/* The funky do-while is used to turn this macro definition into
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* a single C statement (which needs a semi-colon terminator).
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* This avoids problems with code like:
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*
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* if ( something_happens )
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* YY_FATAL_ERROR( "oops, the something happened" );
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* else
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* everything_okay();
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*
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* Prior to using the do-while the compiler would get upset at the
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* "else" because it interpreted the "if" statement as being all
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* done when it reached the ';' after the YY_FATAL_ERROR() call.
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*/
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#define YY_FATAL_ERROR(msg) \
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do \
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{ \
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(void) fputs( msg, stderr ); \
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(void) putc( '\n', stderr ); \
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exit( 1 ); \
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} \
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while ( 0 )
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/* default yywrap function - always treat EOF as an EOF */
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#define yywrap() 1
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/* enter a start condition. This macro really ought to take a parameter,
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* but we do it the disgusting crufty way forced on us by the ()-less
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* definition of BEGIN
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*/
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#define BEGIN yy_start = 1 + 2 *
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/* action number for EOF rule of a given start state */
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#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
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/* special action meaning "start processing a new file" */
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#define YY_NEW_FILE \
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do \
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{ \
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yy_init_buffer( yy_current_buffer, yyin ); \
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yy_load_buffer_state(); \
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} \
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while ( 0 )
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/* default declaration of generated scanner - a define so the user can
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* easily add parameters
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*/
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#define YY_DECL int yylex YY_PROTO(( void ))
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/* code executed at the end of each rule */
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#define YY_BREAK break;
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#define YY_END_OF_BUFFER_CHAR 0
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#ifndef YY_BUF_SIZE
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#define YY_BUF_SIZE (YY_READ_BUF_SIZE * 2) /* size of default input buffer */
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#endif
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typedef struct yy_buffer_state *YY_BUFFER_STATE;
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%% section 1 definitions go here
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/* done after the current pattern has been matched and before the
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* corresponding action - sets up yytext
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*/
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#define YY_DO_BEFORE_ACTION \
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yytext = yy_bp; \
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%% code to fiddle yytext and yyleng for yymore() goes here
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yy_hold_char = *yy_cp; \
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*yy_cp = '\0'; \
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yy_c_buf_p = yy_cp;
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#define EOB_ACT_CONTINUE_SCAN 0
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#define EOB_ACT_END_OF_FILE 1
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#define EOB_ACT_LAST_MATCH 2
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/* return all but the first 'n' matched characters back to the input stream */
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#define yyless(n) \
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do \
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{ \
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/* undo effects of setting up yytext */ \
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*yy_cp = yy_hold_char; \
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yy_c_buf_p = yy_cp = yy_bp + n; \
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YY_DO_BEFORE_ACTION; /* set up yytext again */ \
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} \
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while ( 0 )
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#define unput(c) yyunput( c, yytext )
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struct yy_buffer_state
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{
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FILE *yy_input_file;
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YY_CHAR *yy_ch_buf; /* input buffer */
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YY_CHAR *yy_buf_pos; /* current position in input buffer */
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/* size of input buffer in bytes, not including room for EOB characters*/
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int yy_buf_size;
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/* number of characters read into yy_ch_buf, not including EOB characters */
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int yy_n_chars;
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int yy_eof_status; /* whether we've seen an EOF on this buffer */
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#define EOF_NOT_SEEN 0
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/* "pending" happens when the EOF has been seen but there's still
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* some text process
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*/
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#define EOF_PENDING 1
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#define EOF_DONE 2
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};
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static YY_BUFFER_STATE yy_current_buffer;
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/* we provide macros for accessing buffer states in case in the
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* future we want to put the buffer states in a more general
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* "scanner state"
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*/
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#define YY_CURRENT_BUFFER yy_current_buffer
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/* yy_hold_char holds the character lost when yytext is formed */
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static YY_CHAR yy_hold_char;
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static int yy_n_chars; /* number of characters read into yy_ch_buf */
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#ifndef YY_USER_ACTION
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#define YY_USER_ACTION
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#endif
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#ifndef YY_USER_INIT
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#define YY_USER_INIT
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#endif
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extern YY_CHAR *yytext;
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extern int yyleng;
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extern FILE *yyin, *yyout;
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YY_CHAR *yytext;
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int yyleng;
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FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
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%% data tables for the DFA go here
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/* these variables are all declared out here so that section 3 code can
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* manipulate them
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*/
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/* points to current character in buffer */
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static YY_CHAR *yy_c_buf_p = (YY_CHAR *) 0;
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static int yy_init = 1; /* whether we need to initialize */
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static int yy_start = 0; /* start state number */
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/* flag which is used to allow yywrap()'s to do buffer switches
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* instead of setting up a fresh yyin. A bit of a hack ...
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*/
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static int yy_did_buffer_switch_on_eof;
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static yy_state_type yy_get_previous_state YY_PROTO(( void ));
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static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state ));
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static int yy_get_next_buffer YY_PROTO(( void ));
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static void yyunput YY_PROTO(( YY_CHAR c, YY_CHAR *buf_ptr ));
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void yyrestart YY_PROTO(( FILE *input_file ));
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void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer ));
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void yy_load_buffer_state YY_PROTO(( void ));
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YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size ));
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void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b ));
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void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file ));
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#define yy_new_buffer yy_create_buffer
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#ifdef __cplusplus
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static int yyinput YY_PROTO(( void ));
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#else
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static int input YY_PROTO(( void ));
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#endif
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YY_DECL
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{
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register yy_state_type yy_current_state;
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register YY_CHAR *yy_cp, *yy_bp;
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register int yy_act;
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%% user's declarations go here
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if ( yy_init )
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{
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YY_USER_INIT;
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if ( ! yy_start )
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yy_start = 1; /* first start state */
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if ( ! yyin )
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yyin = stdin;
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if ( ! yyout )
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yyout = stdout;
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if ( yy_current_buffer )
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yy_init_buffer( yy_current_buffer, yyin );
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else
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yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE );
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yy_load_buffer_state();
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yy_init = 0;
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}
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while ( 1 ) /* loops until end-of-file is reached */
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{
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%% yymore()-related code goes here
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yy_cp = yy_c_buf_p;
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/* support of yytext */
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*yy_cp = yy_hold_char;
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/* yy_bp points to the position in yy_ch_buf of the start of the
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* current run.
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*/
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yy_bp = yy_cp;
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%% code to set up and find next match goes here
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yy_find_action:
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%% code to find the action number goes here
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YY_DO_BEFORE_ACTION;
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YY_USER_ACTION;
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do_action: /* this label is used only to access EOF actions */
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%% debug code goes here
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switch ( yy_act )
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{
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%% actions go here
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case YY_END_OF_BUFFER:
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{
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/* amount of text matched not including the EOB char */
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int yy_amount_of_matched_text = yy_cp - yytext - 1;
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/* undo the effects of YY_DO_BEFORE_ACTION */
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*yy_cp = yy_hold_char;
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/* note that here we test for yy_c_buf_p "<=" to the position
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* of the first EOB in the buffer, since yy_c_buf_p will
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* already have been incremented past the NUL character
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* (since all states make transitions on EOB to the end-
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* of-buffer state). Contrast this with the test in yyinput().
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*/
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if ( yy_c_buf_p <= &yy_current_buffer->yy_ch_buf[yy_n_chars] )
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/* this was really a NUL */
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{
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yy_state_type yy_next_state;
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yy_c_buf_p = yytext + yy_amount_of_matched_text;
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yy_current_state = yy_get_previous_state();
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/* okay, we're now positioned to make the
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* NUL transition. We couldn't have
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* yy_get_previous_state() go ahead and do it
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* for us because it doesn't know how to deal
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* with the possibility of jamming (and we
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* don't want to build jamming into it because
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* then it will run more slowly)
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*/
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yy_next_state = yy_try_NUL_trans( yy_current_state );
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yy_bp = yytext + YY_MORE_ADJ;
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if ( yy_next_state )
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{
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/* consume the NUL */
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yy_cp = ++yy_c_buf_p;
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yy_current_state = yy_next_state;
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goto yy_match;
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}
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else
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{
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%% code to do backtracking for compressed tables and set up yy_cp goes here
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goto yy_find_action;
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}
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}
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else switch ( yy_get_next_buffer() )
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{
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case EOB_ACT_END_OF_FILE:
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{
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yy_did_buffer_switch_on_eof = 0;
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if ( yywrap() )
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{
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/* note: because we've taken care in
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* yy_get_next_buffer() to have set up yytext,
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* we can now set up yy_c_buf_p so that if some
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* total hoser (like flex itself) wants
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* to call the scanner after we return the
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* YY_NULL, it'll still work - another YY_NULL
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* will get returned.
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*/
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yy_c_buf_p = yytext + YY_MORE_ADJ;
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yy_act = YY_STATE_EOF((yy_start - 1) / 2);
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goto do_action;
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}
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else
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{
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if ( ! yy_did_buffer_switch_on_eof )
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YY_NEW_FILE;
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}
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}
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break;
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case EOB_ACT_CONTINUE_SCAN:
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yy_c_buf_p = yytext + yy_amount_of_matched_text;
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yy_current_state = yy_get_previous_state();
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yy_cp = yy_c_buf_p;
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yy_bp = yytext + YY_MORE_ADJ;
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goto yy_match;
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case EOB_ACT_LAST_MATCH:
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yy_c_buf_p =
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&yy_current_buffer->yy_ch_buf[yy_n_chars];
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yy_current_state = yy_get_previous_state();
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yy_cp = yy_c_buf_p;
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yy_bp = yytext + YY_MORE_ADJ;
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goto yy_find_action;
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}
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break;
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}
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default:
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#ifdef FLEX_DEBUG
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printf( "action # %d\n", yy_act );
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#endif
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YY_FATAL_ERROR(
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"fatal flex scanner internal error--no action found" );
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}
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}
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}
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/* yy_get_next_buffer - try to read in a new buffer
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*
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* synopsis
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* int yy_get_next_buffer();
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*
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* returns a code representing an action
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* EOB_ACT_LAST_MATCH -
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* EOB_ACT_CONTINUE_SCAN - continue scanning from current position
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* EOB_ACT_END_OF_FILE - end of file
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*/
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static int yy_get_next_buffer()
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{
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register YY_CHAR *dest = yy_current_buffer->yy_ch_buf;
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register YY_CHAR *source = yytext - 1; /* copy prev. char, too */
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register int number_to_move, i;
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int ret_val;
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if ( yy_c_buf_p > &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] )
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YY_FATAL_ERROR(
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"fatal flex scanner internal error--end of buffer missed" );
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/* try to read more data */
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/* first move last chars to start of buffer */
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number_to_move = yy_c_buf_p - yytext;
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for ( i = 0; i < number_to_move; ++i )
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*(dest++) = *(source++);
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if ( yy_current_buffer->yy_eof_status != EOF_NOT_SEEN )
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/* don't do the read, it's not guaranteed to return an EOF,
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* just force an EOF
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*/
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yy_n_chars = 0;
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else
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{
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int num_to_read = yy_current_buffer->yy_buf_size - number_to_move - 1;
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if ( num_to_read > YY_READ_BUF_SIZE )
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num_to_read = YY_READ_BUF_SIZE;
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else if ( num_to_read <= 0 )
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YY_FATAL_ERROR( "fatal error - scanner input buffer overflow" );
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/* read in more data */
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YY_INPUT( (&yy_current_buffer->yy_ch_buf[number_to_move]),
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yy_n_chars, num_to_read );
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}
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if ( yy_n_chars == 0 )
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{
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if ( number_to_move == 1 )
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{
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ret_val = EOB_ACT_END_OF_FILE;
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yy_current_buffer->yy_eof_status = EOF_DONE;
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}
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else
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{
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ret_val = EOB_ACT_LAST_MATCH;
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yy_current_buffer->yy_eof_status = EOF_PENDING;
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}
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}
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else
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ret_val = EOB_ACT_CONTINUE_SCAN;
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yy_n_chars += number_to_move;
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yy_current_buffer->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR;
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yy_current_buffer->yy_ch_buf[yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR;
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/* yytext begins at the second character in yy_ch_buf; the first
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* character is the one which preceded it before reading in the latest
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* buffer; it needs to be kept around in case it's a newline, so
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* yy_get_previous_state() will have with '^' rules active
|
|
*/
|
|
|
|
yytext = &yy_current_buffer->yy_ch_buf[1];
|
|
|
|
return ( ret_val );
|
|
}
|
|
|
|
|
|
/* yy_get_previous_state - get the state just before the EOB char was reached
|
|
*
|
|
* synopsis
|
|
* yy_state_type yy_get_previous_state();
|
|
*/
|
|
|
|
static yy_state_type yy_get_previous_state()
|
|
|
|
{
|
|
register yy_state_type yy_current_state;
|
|
register YY_CHAR *yy_cp;
|
|
|
|
%% code to get the start state into yy_current_state goes here
|
|
|
|
for ( yy_cp = yytext + YY_MORE_ADJ; yy_cp < yy_c_buf_p; ++yy_cp )
|
|
{
|
|
%% code to find the next state goes here
|
|
}
|
|
|
|
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 );
|
|
*/
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
static yy_state_type yy_try_NUL_trans( register yy_state_type yy_current_state )
|
|
#else
|
|
static yy_state_type yy_try_NUL_trans( yy_current_state )
|
|
register yy_state_type yy_current_state;
|
|
#endif
|
|
|
|
{
|
|
register int yy_is_jam;
|
|
%% code to find the next state, and perhaps do backtracking, goes here
|
|
|
|
return ( yy_is_jam ? 0 : yy_current_state );
|
|
}
|
|
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
static void yyunput( YY_CHAR c, register YY_CHAR *yy_bp )
|
|
#else
|
|
static void yyunput( c, yy_bp )
|
|
YY_CHAR c;
|
|
register YY_CHAR *yy_bp;
|
|
#endif
|
|
|
|
{
|
|
register YY_CHAR *yy_cp = yy_c_buf_p;
|
|
|
|
/* undo effects of setting up yytext */
|
|
*yy_cp = yy_hold_char;
|
|
|
|
if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
|
|
{ /* need to shift things up to make room */
|
|
register int number_to_move = yy_n_chars + 2; /* +2 for EOB chars */
|
|
register YY_CHAR *dest =
|
|
&yy_current_buffer->yy_ch_buf[yy_current_buffer->yy_buf_size + 2];
|
|
register YY_CHAR *source =
|
|
&yy_current_buffer->yy_ch_buf[number_to_move];
|
|
|
|
while ( source > yy_current_buffer->yy_ch_buf )
|
|
*--dest = *--source;
|
|
|
|
yy_cp += dest - source;
|
|
yy_bp += dest - source;
|
|
yy_n_chars = yy_current_buffer->yy_buf_size;
|
|
|
|
if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 )
|
|
YY_FATAL_ERROR( "flex scanner push-back overflow" );
|
|
}
|
|
|
|
if ( yy_cp > yy_bp && yy_cp[-1] == '\n' )
|
|
yy_cp[-2] = '\n';
|
|
|
|
*--yy_cp = c;
|
|
|
|
/* note: the formal parameter *must* be called "yy_bp" for this
|
|
* macro to now work correctly
|
|
*/
|
|
YY_DO_BEFORE_ACTION; /* set up yytext again */
|
|
}
|
|
|
|
|
|
#ifdef __cplusplus
|
|
static int yyinput()
|
|
#else
|
|
static int input()
|
|
#endif
|
|
|
|
{
|
|
int c;
|
|
YY_CHAR *yy_cp = yy_c_buf_p;
|
|
|
|
*yy_cp = 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->yy_ch_buf[yy_n_chars] )
|
|
/* this was really a NUL */
|
|
*yy_c_buf_p = '\0';
|
|
|
|
else
|
|
{ /* need more input */
|
|
yytext = yy_c_buf_p;
|
|
++yy_c_buf_p;
|
|
|
|
switch ( yy_get_next_buffer() )
|
|
{
|
|
case EOB_ACT_END_OF_FILE:
|
|
{
|
|
if ( yywrap() )
|
|
{
|
|
yy_c_buf_p = yytext + YY_MORE_ADJ;
|
|
return ( EOF );
|
|
}
|
|
|
|
YY_NEW_FILE;
|
|
|
|
#ifdef __cplusplus
|
|
return ( yyinput() );
|
|
#else
|
|
return ( input() );
|
|
#endif
|
|
}
|
|
break;
|
|
|
|
case EOB_ACT_CONTINUE_SCAN:
|
|
yy_c_buf_p = yytext + YY_MORE_ADJ;
|
|
break;
|
|
|
|
case EOB_ACT_LAST_MATCH:
|
|
#ifdef __cplusplus
|
|
YY_FATAL_ERROR( "unexpected last match in yyinput()" );
|
|
#else
|
|
YY_FATAL_ERROR( "unexpected last match in input()" );
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
c = *yy_c_buf_p;
|
|
yy_hold_char = *++yy_c_buf_p;
|
|
|
|
return ( c );
|
|
}
|
|
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
void yyrestart( FILE *input_file )
|
|
#else
|
|
void yyrestart( input_file )
|
|
FILE *input_file;
|
|
#endif
|
|
|
|
{
|
|
yy_init_buffer( yy_current_buffer, input_file );
|
|
yy_load_buffer_state();
|
|
}
|
|
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer )
|
|
#else
|
|
void yy_switch_to_buffer( new_buffer )
|
|
YY_BUFFER_STATE new_buffer;
|
|
#endif
|
|
|
|
{
|
|
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->yy_buf_pos = yy_c_buf_p;
|
|
yy_current_buffer->yy_n_chars = yy_n_chars;
|
|
}
|
|
|
|
yy_current_buffer = 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;
|
|
}
|
|
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
void yy_load_buffer_state( void )
|
|
#else
|
|
void yy_load_buffer_state()
|
|
#endif
|
|
|
|
{
|
|
yy_n_chars = yy_current_buffer->yy_n_chars;
|
|
yytext = yy_c_buf_p = yy_current_buffer->yy_buf_pos;
|
|
yyin = yy_current_buffer->yy_input_file;
|
|
yy_hold_char = *yy_c_buf_p;
|
|
}
|
|
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
YY_BUFFER_STATE yy_create_buffer( FILE *file, int size )
|
|
#else
|
|
YY_BUFFER_STATE yy_create_buffer( file, size )
|
|
FILE *file;
|
|
int size;
|
|
#endif
|
|
|
|
{
|
|
YY_BUFFER_STATE b;
|
|
|
|
b = (YY_BUFFER_STATE) malloc( 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 = (YY_CHAR *) malloc( (unsigned) (b->yy_buf_size + 2) );
|
|
|
|
if ( ! b->yy_ch_buf )
|
|
YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
|
|
|
|
yy_init_buffer( b, file );
|
|
|
|
return ( b );
|
|
}
|
|
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
void yy_delete_buffer( YY_BUFFER_STATE b )
|
|
#else
|
|
void yy_delete_buffer( b )
|
|
YY_BUFFER_STATE b;
|
|
#endif
|
|
|
|
{
|
|
if ( b == yy_current_buffer )
|
|
yy_current_buffer = (YY_BUFFER_STATE) 0;
|
|
|
|
free( (char *) b->yy_ch_buf );
|
|
free( (char *) b );
|
|
}
|
|
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
void yy_init_buffer( YY_BUFFER_STATE b, FILE *file )
|
|
#else
|
|
void yy_init_buffer( b, file )
|
|
YY_BUFFER_STATE b;
|
|
FILE *file;
|
|
#endif
|
|
|
|
{
|
|
b->yy_input_file = file;
|
|
|
|
/* we put in the '\n' and start reading from [1] so that an
|
|
* initial match-at-newline will be true.
|
|
*/
|
|
|
|
b->yy_ch_buf[0] = '\n';
|
|
b->yy_n_chars = 1;
|
|
|
|
/* 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[1] = YY_END_OF_BUFFER_CHAR;
|
|
b->yy_ch_buf[2] = YY_END_OF_BUFFER_CHAR;
|
|
|
|
b->yy_buf_pos = &b->yy_ch_buf[1];
|
|
|
|
b->yy_eof_status = EOF_NOT_SEEN;
|
|
}
|
|
|
|
#ifdef ACK_MOD
|
|
/* redefine yyless() so that it does not access local variables of YYDECL */
|
|
|
|
#undef yyless
|
|
|
|
/* return all but the first 'n' matched characters back to the input stream */
|
|
#define yyless(n) \
|
|
do \
|
|
{ \
|
|
/* undo effects of setting up yytext */ \
|
|
yytext[yyleng] = yy_hold_char; \
|
|
yy_c_buf_p = yytext + n; \
|
|
yy_hold_char = *yy_c_buf_p; \
|
|
*yy_c_buf_p = '\0'; \
|
|
yyleng = n; \
|
|
} \
|
|
while ( 0 )
|
|
|
|
#endif /* ACK_MOD */
|