1217 lines
26 KiB
Plaintext
1217 lines
26 KiB
Plaintext
/* A lexical scanner generated by flex */
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/* Scanner skeleton version:
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* $Header: /cvsroot/src/usr.bin/lex/Attic/flex.skl,v 1.5 1994/01/06 23:58:24 jtc Exp $
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*/
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#define FLEX_SCANNER
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%-
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#include <stdio.h>
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%*
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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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%+
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class istream;
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%*
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#include <unistd.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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#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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#ifndef const
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#define const
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#endif
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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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#endif
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/* Returned upon end-of-file. */
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#define YY_NULL 0
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/* Promotes a possibly negative, possibly signed char to an unsigned
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* integer for use as an array index. If the signed char is negative,
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* we want to instead treat it as an 8-bit unsigned char, hence the
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* double cast.
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*/
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#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
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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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/* Translate the current start state into a value that can be later handed
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* to BEGIN to return to the state.
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*/
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#define YY_START ((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". Now included
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* only for backward compatibility with previous versions of flex.
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*/
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#define YY_NEW_FILE yyrestart( yyin )
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#define YY_END_OF_BUFFER_CHAR 0
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/* Size of default input buffer. */
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#define YY_BUF_SIZE 16384
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typedef struct yy_buffer_state *YY_BUFFER_STATE;
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extern int yyleng;
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%-
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extern FILE *yyin, *yyout;
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%*
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int yywrap YY_PROTO(( void ));
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#ifdef __cplusplus
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}
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#endif
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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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/* The funky do-while in the following #define is used to turn the definition
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* int a single C statement (which needs a semi-colon terminator). This
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* avoids problems with code like:
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*
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* if ( condition_holds )
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* yyless( 5 );
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* else
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* do_something_else();
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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 yyless() call.
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*/
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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 - YY_MORE_ADJ; \
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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_ptr )
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struct yy_buffer_state
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{
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%-
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FILE *yy_input_file;
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%+
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istream* yy_input_file;
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%*
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char *yy_ch_buf; /* input buffer */
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char *yy_buf_pos; /* current position in input buffer */
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/* Size of input buffer in bytes, not including room for EOB
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* characters.
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*/
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int yy_buf_size;
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/* Number of characters read into yy_ch_buf, not including EOB
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* characters.
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*/
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int yy_n_chars;
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/* Whether this is an "interactive" input source; if so, and
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* if we're using stdio for input, then we want to use getc()
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* instead of fread(), to make sure we stop fetching input after
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* each newline.
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*/
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int yy_is_interactive;
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/* Whether to try to fill the input buffer when we reach the
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* end of it.
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*/
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int yy_fill_buffer;
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/* Whether we've seen an EOF on this buffer. */
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int yy_eof_status;
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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 to process. Note that when we actually see the EOF,
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* we switch the status back to "not seen" (via yyrestart()), so
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* that the user can continue scanning by just pointing yyin at
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* a new input file.
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*/
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#define EOF_PENDING 1
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};
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%- Standard (non-C++) definition
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static YY_BUFFER_STATE yy_current_buffer = 0;
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%*
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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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%- Standard (non-C++) definition
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/* yy_hold_char holds the character lost when yytext is formed. */
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static 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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int yyleng;
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/* Points to current character in buffer. */
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static char *yy_c_buf_p = (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 void yyunput YY_PROTO(( int c, 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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static int yy_start_stack_ptr = 0;
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static int yy_start_stack_depth = 0;
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static int *yy_start_stack = 0;
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static void yy_push_state YY_PROTO(( int new_state ));
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static void yy_pop_state YY_PROTO(( void ));
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static int yy_top_state YY_PROTO(( void ));
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%*
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#ifndef yytext_ptr
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static void yy_flex_strcpy YY_PROTO(( char *, const char * ));
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#endif
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static void *yy_flex_alloc YY_PROTO(( unsigned int ));
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static void *yy_flex_realloc YY_PROTO(( void *ptr, unsigned int ));
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static void yy_flex_free YY_PROTO(( void * ));
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#define yy_new_buffer yy_create_buffer
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%% yytext/yyin/yyout/yy_state_type/yylineno etc. def's & init go here
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%- Standard (non-C++) definition
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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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%*
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%- Standard (non-C++) definition
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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 yy_fatal_error YY_PROTO(( const char msg[] ));
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%*
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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_ptr = 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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%% code to copy yytext_ptr to yytext[] goes here, if %array
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yy_c_buf_p = yy_cp;
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%% data tables for the DFA and the user's section 1 definitions go here
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/* Macros after this point can all be overridden by user definitions in
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* section 1.
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*/
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#ifdef YY_MALLOC_DECL
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YY_MALLOC_DECL
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#else
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#if __STDC__
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#ifndef __cplusplus
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#include <stdlib.h>
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#endif
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#else
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/* Just try to get by without declaring the routines. This will fail
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* miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
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* or sizeof(void*) != sizeof(int).
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*/
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#endif
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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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/* Copy whatever the last rule matched to the standard output. */
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#ifndef ECHO
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%- Standard (non-C++) definition
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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( yytext, yyleng, 1, yyout )
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%+ C++ definition
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#define ECHO LexerOutput( yytext, yyleng )
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%*
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#endif
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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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#ifndef YY_INPUT
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#define YY_INPUT(buf,result,max_size) \
|
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%% fread()/read() definition of YY_INPUT goes here unless we're doing C++
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%+ C++ definition
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if ( (result = LexerInput( (char *) buf, max_size )) < 0 ) \
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YY_FATAL_ERROR( "input in flex scanner failed" );
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%*
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#endif
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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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#ifndef yyterminate
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#define yyterminate() return YY_NULL
|
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#endif
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/* Number of entries by which start-condition stack grows. */
|
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#ifndef YY_START_STACK_INCR
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#define YY_START_STACK_INCR 25
|
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#endif
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/* Report a fatal error. */
|
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#ifndef YY_FATAL_ERROR
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%-
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#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
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%+
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#define YY_FATAL_ERROR(msg) LexerError( msg )
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%*
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#endif
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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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#ifndef YY_DECL
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%- Standard (non-C++) definition
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#define YY_DECL int yylex YY_PROTO(( void ))
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%+ C++ definition
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#define YY_DECL int yyFlexLexer::yylex()
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%*
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#endif
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/* Code executed at the beginning of each rule, after yytext and yyleng
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* have been set up.
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*/
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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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/* Code executed at the end of each rule. */
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#ifndef YY_BREAK
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#define YY_BREAK break;
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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 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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#ifdef YY_USER_INIT
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YY_USER_INIT;
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#endif
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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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%-
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yyin = stdin;
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%+
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yyin = &cin;
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%*
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if ( ! yyout )
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%-
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yyout = stdout;
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%+
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yyout = &cout;
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%*
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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 =
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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
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* the 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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%% code for yylineno update goes here, if -l option
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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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{ /* beginning of action switch */
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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_ptr - 1;
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|
/* Undo the effects of YY_DO_BEFORE_ACTION. */
|
|
*yy_cp = yy_hold_char;
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|
if ( yy_current_buffer->yy_input_file != yyin )
|
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{
|
|
/* This can happen if we scan a file, yywrap() returns
|
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* 1, and then later the user points yyin at a new
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* file to resume scanning. We have to assure
|
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* consistency between yy_current_buffer and our
|
|
* globals. Here is the right place to do so, because
|
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* this is the first action (other than possibly a
|
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* back-up) that will match for the new input file.
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*/
|
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yy_current_buffer->yy_input_file = yyin;
|
|
yy_n_chars = yy_current_buffer->yy_n_chars;
|
|
}
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|
|
/* 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
|
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* already have been incremented past the NUL character
|
|
* (since all states make transitions on EOB to the
|
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* end-of-buffer state). Contrast this with the test
|
|
* in input().
|
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*/
|
|
if ( yy_c_buf_p <= &yy_current_buffer->yy_ch_buf[yy_n_chars] )
|
|
{ /* This was really a NUL. */
|
|
yy_state_type yy_next_state;
|
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|
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yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text;
|
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|
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yy_current_state = yy_get_previous_state();
|
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|
|
/* 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).
|
|
*/
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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_ptr + YY_MORE_ADJ;
|
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|
|
if ( yy_next_state )
|
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{
|
|
/* Consume the NUL. */
|
|
yy_cp = ++yy_c_buf_p;
|
|
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 back-up 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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{
|
|
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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|
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if ( yywrap() )
|
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{
|
|
/* Note: because we've taken care in
|
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* yy_get_next_buffer() to have set up
|
|
* yytext, we can now set up
|
|
* yy_c_buf_p so that if some total
|
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* hoser (like flex itself) wants to
|
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* call the scanner after we return the
|
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* YY_NULL, it'll still work - another
|
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* YY_NULL will get returned.
|
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*/
|
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yy_c_buf_p = yytext_ptr + YY_MORE_ADJ;
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|
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yy_act = YY_STATE_EOF(YY_START);
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goto do_action;
|
|
}
|
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|
|
else
|
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{
|
|
if ( ! yy_did_buffer_switch_on_eof )
|
|
YY_NEW_FILE;
|
|
}
|
|
break;
|
|
}
|
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|
|
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->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 */
|
|
|
|
%+
|
|
#ifdef YY_INTERACTIVE
|
|
int yyFlexLexer::LexerInput( char* buf, int /* max_size */ )
|
|
#else
|
|
int yyFlexLexer::LexerInput( char* buf, int max_size )
|
|
#endif
|
|
{
|
|
if ( yyin->eof() || yyin->fail() )
|
|
return 0;
|
|
|
|
#ifdef YY_INTERACTIVE
|
|
yyin->get( buf[0] );
|
|
|
|
if ( yyin->eof() )
|
|
return 0;
|
|
|
|
if ( yyin->bad() )
|
|
return -1;
|
|
|
|
return 1;
|
|
|
|
#else
|
|
(void) yyin->read( buf, max_size );
|
|
|
|
if ( yyin->bad() )
|
|
return -1;
|
|
else
|
|
return yyin->gcount();
|
|
#endif
|
|
}
|
|
|
|
void yyFlexLexer::LexerOutput( const char* buf, int size )
|
|
{
|
|
(void) yyout->write( buf, size );
|
|
}
|
|
%*
|
|
|
|
/* 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()
|
|
%+
|
|
int yyFlexLexer::yy_get_next_buffer()
|
|
%*
|
|
{
|
|
register char *dest = yy_current_buffer->yy_ch_buf;
|
|
register char *source = yytext_ptr - 1; /* copy prev. char, too */
|
|
register int number_to_move, i;
|
|
int ret_val;
|
|
|
|
if ( yy_c_buf_p > &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] )
|
|
YY_FATAL_ERROR(
|
|
"fatal flex scanner internal error--end of buffer missed" );
|
|
|
|
if ( yy_current_buffer->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 singled characater, 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 = yy_c_buf_p - yytext_ptr;
|
|
|
|
for ( i = 0; i < number_to_move; ++i )
|
|
*(dest++) = *(source++);
|
|
|
|
if ( yy_current_buffer->yy_eof_status != EOF_NOT_SEEN )
|
|
/* don't do the read, it's not guaranteed to return an EOF,
|
|
* just force an EOF
|
|
*/
|
|
yy_n_chars = 0;
|
|
|
|
else
|
|
{
|
|
int num_to_read =
|
|
yy_current_buffer->yy_buf_size - number_to_move - 1;
|
|
|
|
while ( num_to_read <= 0 )
|
|
{ /* Not enough room in the buffer - grow it. */
|
|
#ifdef YY_USES_REJECT
|
|
YY_FATAL_ERROR(
|
|
"input buffer overflow, can't enlarge buffer because scanner uses REJECT" );
|
|
#else
|
|
|
|
/* just a shorter name for the current buffer */
|
|
YY_BUFFER_STATE b = yy_current_buffer;
|
|
|
|
int yy_c_buf_p_offset = yy_c_buf_p - b->yy_ch_buf;
|
|
|
|
b->yy_buf_size *= 2;
|
|
b->yy_ch_buf = (char *)
|
|
yy_flex_realloc( (void *) b->yy_ch_buf,
|
|
b->yy_buf_size );
|
|
|
|
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->yy_buf_size -
|
|
number_to_move - 1;
|
|
#endif
|
|
}
|
|
|
|
if ( num_to_read > YY_READ_BUF_SIZE )
|
|
num_to_read = YY_READ_BUF_SIZE;
|
|
|
|
/* Read in more data. */
|
|
YY_INPUT( (&yy_current_buffer->yy_ch_buf[number_to_move]),
|
|
yy_n_chars, num_to_read );
|
|
}
|
|
|
|
if ( yy_n_chars == 0 )
|
|
{
|
|
if ( number_to_move - YY_MORE_ADJ == 1 )
|
|
{
|
|
ret_val = EOB_ACT_END_OF_FILE;
|
|
yyrestart( yyin );
|
|
}
|
|
|
|
else
|
|
{
|
|
ret_val = EOB_ACT_LAST_MATCH;
|
|
yy_current_buffer->yy_eof_status = EOF_PENDING;
|
|
}
|
|
}
|
|
|
|
else
|
|
ret_val = EOB_ACT_CONTINUE_SCAN;
|
|
|
|
yy_n_chars += number_to_move;
|
|
yy_current_buffer->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR;
|
|
yy_current_buffer->yy_ch_buf[yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR;
|
|
|
|
/* yytext begins at the second character in yy_ch_buf; the first
|
|
* character is the one which preceded it before reading in the latest
|
|
* buffer; it needs to be kept around in case it's a newline, so
|
|
* yy_get_previous_state() will have with '^' rules active.
|
|
*/
|
|
|
|
yytext_ptr = &yy_current_buffer->yy_ch_buf[1];
|
|
|
|
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()
|
|
%+
|
|
yy_state_type yyFlexLexer::yy_get_previous_state()
|
|
%*
|
|
{
|
|
register yy_state_type yy_current_state;
|
|
register char *yy_cp;
|
|
|
|
%% code to get the start state into yy_current_state goes here
|
|
|
|
for ( yy_cp = yytext_ptr + 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( yy_state_type yy_current_state )
|
|
#else
|
|
static yy_state_type yy_try_NUL_trans( yy_current_state )
|
|
yy_state_type yy_current_state;
|
|
#endif
|
|
%+
|
|
yy_state_type yyFlexLexer::yy_try_NUL_trans( yy_state_type yy_current_state )
|
|
%*
|
|
{
|
|
register int yy_is_jam;
|
|
%% code to find the next state, and perhaps do backing up, goes here
|
|
|
|
return yy_is_jam ? 0 : yy_current_state;
|
|
}
|
|
|
|
|
|
%-
|
|
#ifdef YY_USE_PROTOS
|
|
static void yyunput( int c, register char *yy_bp )
|
|
#else
|
|
static void yyunput( c, yy_bp )
|
|
int c;
|
|
register char *yy_bp;
|
|
#endif
|
|
%+
|
|
void yyFlexLexer::yyunput( int c, register char* yy_bp )
|
|
%*
|
|
{
|
|
register 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 */
|
|
/* +2 for EOB chars. */
|
|
register int number_to_move = yy_n_chars + 2;
|
|
register char *dest = &yy_current_buffer->yy_ch_buf[
|
|
yy_current_buffer->yy_buf_size + 2];
|
|
register 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 = (char) c;
|
|
|
|
%% update yylineno here, if doing -l
|
|
|
|
/* 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 yyFlexLexer::yyinput()
|
|
%*
|
|
{
|
|
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->yy_ch_buf[yy_n_chars] )
|
|
/* This was really a NUL. */
|
|
*yy_c_buf_p = '\0';
|
|
|
|
else
|
|
{ /* need more input */
|
|
yytext_ptr = 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_ptr + YY_MORE_ADJ;
|
|
return EOF;
|
|
}
|
|
|
|
YY_NEW_FILE;
|
|
#ifdef __cplusplus
|
|
return yyinput();
|
|
#else
|
|
return input();
|
|
#endif
|
|
}
|
|
|
|
case EOB_ACT_CONTINUE_SCAN:
|
|
yy_c_buf_p = yytext_ptr + 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_c_buf_p = '\0'; /* preserve yytext */
|
|
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
|
|
%+
|
|
void yyFlexLexer::yyrestart( istream* input_file )
|
|
%*
|
|
{
|
|
if ( ! yy_current_buffer )
|
|
yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE );
|
|
|
|
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
|
|
%+
|
|
void yyFlexLexer::yy_switch_to_buffer( YY_BUFFER_STATE new_buffer )
|
|
%*
|
|
{
|
|
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
|
|
%+
|
|
void yyFlexLexer::yy_load_buffer_state()
|
|
%*
|
|
{
|
|
yy_n_chars = yy_current_buffer->yy_n_chars;
|
|
yytext_ptr = 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 yyFlexLexer::yy_create_buffer( istream* file, int size )
|
|
%*
|
|
{
|
|
YY_BUFFER_STATE b;
|
|
|
|
b = (YY_BUFFER_STATE) yy_flex_alloc( 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 *) yy_flex_alloc( 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
|
|
%+
|
|
void yyFlexLexer::yy_delete_buffer( YY_BUFFER_STATE b )
|
|
%*
|
|
{
|
|
if ( b == yy_current_buffer )
|
|
yy_current_buffer = (YY_BUFFER_STATE) 0;
|
|
|
|
yy_flex_free( (void *) b->yy_ch_buf );
|
|
yy_flex_free( (void *) 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
|
|
%+
|
|
void yyFlexLexer::yy_init_buffer( YY_BUFFER_STATE b, istream* file )
|
|
%*
|
|
{
|
|
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_is_interactive = file ? isatty( fileno(file) ) : 0;
|
|
%+
|
|
b->yy_is_interactive = 0;
|
|
%*
|
|
|
|
b->yy_fill_buffer = 1;
|
|
|
|
b->yy_eof_status = EOF_NOT_SEEN;
|
|
}
|
|
|
|
|
|
%-
|
|
#ifdef YY_USE_PROTOS
|
|
static void yy_push_state( int new_state )
|
|
#else
|
|
static void yy_push_state( new_state )
|
|
int new_state;
|
|
#endif
|
|
%+
|
|
void yyFlexLexer::yy_push_state( int new_state )
|
|
%*
|
|
{
|
|
if ( yy_start_stack_ptr >= yy_start_stack_depth )
|
|
{
|
|
int new_size;
|
|
|
|
yy_start_stack_depth += YY_START_STACK_INCR;
|
|
new_size = yy_start_stack_depth * sizeof( int );
|
|
|
|
if ( ! yy_start_stack )
|
|
yy_start_stack = (int *) yy_flex_alloc( new_size );
|
|
|
|
else
|
|
yy_start_stack = (int *) yy_flex_realloc(
|
|
(void *) yy_start_stack, new_size );
|
|
|
|
if ( ! yy_start_stack )
|
|
YY_FATAL_ERROR(
|
|
"out of memory expanding start-condition stack" );
|
|
}
|
|
|
|
yy_start_stack[yy_start_stack_ptr++] = YY_START;
|
|
|
|
BEGIN(new_state);
|
|
}
|
|
|
|
|
|
%-
|
|
static void yy_pop_state()
|
|
%+
|
|
void yyFlexLexer::yy_pop_state()
|
|
%*
|
|
{
|
|
if ( --yy_start_stack_ptr < 0 )
|
|
YY_FATAL_ERROR( "start-condition stack underflow" );
|
|
|
|
BEGIN(yy_start_stack[yy_start_stack_ptr]);
|
|
}
|
|
|
|
|
|
%-
|
|
static int yy_top_state()
|
|
%+
|
|
int yyFlexLexer::yy_top_state()
|
|
%*
|
|
{
|
|
return yy_start_stack[yy_start_stack_ptr - 1];
|
|
}
|
|
|
|
|
|
%-
|
|
#ifdef YY_USE_PROTOS
|
|
static void yy_fatal_error( const char msg[] )
|
|
#else
|
|
static void yy_fatal_error( msg )
|
|
char msg[];
|
|
#endif
|
|
{
|
|
(void) fprintf( stderr, "%s\n", msg );
|
|
exit( 1 );
|
|
}
|
|
|
|
%+
|
|
|
|
void yyFlexLexer::LexerError( const char msg[] )
|
|
{
|
|
cerr << msg << '\n';
|
|
exit( 1 );
|
|
}
|
|
%*
|
|
|
|
|
|
/* Redefine yyless() so it works in section 3 code. */
|
|
|
|
#undef yyless
|
|
#define yyless(n) \
|
|
do \
|
|
{ \
|
|
/* Undo effects of setting up yytext. */ \
|
|
yytext[yyleng] = yy_hold_char; \
|
|
yy_c_buf_p = yytext + n - YY_MORE_ADJ; \
|
|
yy_hold_char = *yy_c_buf_p; \
|
|
*yy_c_buf_p = '\0'; \
|
|
yyleng = n; \
|
|
} \
|
|
while ( 0 )
|
|
|
|
|
|
/* Internal utility routines. */
|
|
|
|
#ifndef yytext_ptr
|
|
#ifdef YY_USE_PROTOS
|
|
static void yy_flex_strcpy( char *s1, const char *s2 )
|
|
#else
|
|
static void yy_flex_strcpy( s1, s2 )
|
|
char *s1;
|
|
const char *s2;
|
|
#endif
|
|
{
|
|
while ( (*(s1++) = *(s2++)) )
|
|
;
|
|
}
|
|
#endif
|
|
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
static void *yy_flex_alloc( unsigned int size )
|
|
#else
|
|
static void *yy_flex_alloc( size )
|
|
unsigned int size;
|
|
#endif
|
|
{
|
|
return (void *) malloc( size );
|
|
}
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
static void *yy_flex_realloc( void *ptr, unsigned int size )
|
|
#else
|
|
static void *yy_flex_realloc( ptr, size )
|
|
void *ptr;
|
|
unsigned int size;
|
|
#endif
|
|
{
|
|
return (void *) realloc( ptr, size );
|
|
}
|
|
|
|
#ifdef YY_USE_PROTOS
|
|
static void yy_flex_free( void *ptr )
|
|
#else
|
|
static void yy_flex_free( ptr )
|
|
void *ptr;
|
|
#endif
|
|
{
|
|
free( ptr );
|
|
}
|