/******************************************************************** ** Z80LexLoader.c - A lexical scanner generated by flex ** ** FUNCTION: ** ** This scanner is for reading in Z80Simulator configuration ** files. *********************************************************************/ #define FLEX_SCANNER #include #ifdef __STDC__ # include # define YY_USE_PROTOS # define YY_USE_CONST #endif /* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */ #ifdef c_plusplus # ifndef __cplusplus # define __cplusplus # endif #endif #ifdef __cplusplus # ifndef __STDC__ # include # endif # include # define YY_USE_PROTOS /* use prototypes in function declarations */ # define YY_USE_CONST /* the "const" storage-class-modifier is valid */ #endif #ifndef YY_USE_CONST # define const #endif #ifdef YY_USE_PROTOS # define YY_PROTO(proto) proto #else # define YY_PROTO(proto) () /* there's no standard place to get these definitions */ char *malloc(); int free(); int read(); #endif /* amount of stuff to slurp up with each read */ #ifndef YY_READ_BUF_SIZE # define YY_READ_BUF_SIZE 8192 #endif /* returned upon end-of-file */ #define YY_END_TOK 0 /* copy whatever the last rule matched to the standard output */ /* Cast to (char *) is because for 8-bit chars, ** yytext is (unsigned char *). ** This used to be an fputs(), but since the string might contain NUL's, ** we now use fwrite() */ #define ECHO (void) fwrite( (char *) yytext, yyleng, 1, yyout ) /* gets input and stuffs it into "buf". Number of characters read, ** or YY_NULL, is returned in "result". */ #define YY_INPUT(buf,result,max_size) \ if ((result = read( fileno(yyin), (char *) buf, max_size )) < 0) \ YY_FATAL_ERROR( "read() in flex scanner failed" ); #define YY_NULL 0 /* 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. */ #define yyterminate() return( YY_NULL ) /* report a fatal error */ /* The funky do-while is used to turn this macro definition into * a single C statement (which needs a semi-colon terminator). * This avoids problems with code like: * * if ( something_happens ) * YY_FATAL_ERROR( "oops, the something happened" ); * else * everything_okay(); * * Prior to using the do-while the compiler would get upset at the * "else" because it interpreted the "if" statement as being all * done when it reached the ';' after the YY_FATAL_ERROR() call. */ #define YY_FATAL_ERROR(msg) \ do \ { \ (void) fputs( msg, stderr ); \ (void) fputc( '\n', stderr ); \ exit( 1 ); \ } \ while ( 0 ) /* default yywrap function - always treat EOF as an EOF */ #define yywrap() 1 /* 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 * /* 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 \ do \ { \ yy_init_buffer( yy_current_buffer, yyin ); \ yy_load_buffer_state(); \ } \ while ( 0 ) /* default declaration of generated scanner - a define so the user can ** easily add parameters */ #define YY_DECL int yylex( void ) /* code executed at the end of each rule */ #define YY_BREAK break; #define YY_END_OF_BUFFER_CHAR 0 #ifndef YY_BUF_SIZE # define YY_BUF_SIZE (YY_READ_BUF_SIZE * 2) /* size of default input buf */ #endif typedef struct yy_buffer_state *BUF_STATE_PTR; #define YY_CHAR char #define INITIAL 0 /************************************************************************ ** Z80LexLoader.flex The FLeX source for Z80LexLoader.c ** Used with Z80Loader.c ** *************************************************************************/ #include #include #include #define MAXLINE 255 #define UNALLOWED 0 #define WHITE 1 #define REG 2 #define ALPHA 3 #define COLON 4 #define BYTE 5 #define BREAK 6 #define LOAD 7 #define ENDMARK 8 #define ENDLINE 9 #define DELIM 10 char nil1[ MAXLINE ], *loadfile_buff = &nil1[0]; #ifdef LOADFILE_DEBUG /* TestLexLoader is the target!! */ extern char *yytext; extern FILE *yyin; void main( int argc, char **argv ) { char *infile = "Z80.cfg"; int tokval = 0; if ((yyin = fopen( infile, "r" )) == NULL) { fprintf( stderr, "Couldn't open %s for input!!\n", infile ); exit( -1 ); } tokval = yylex(); while (tokval >= 0) { switch( tokval ) { case UNALLOWED: fprintf( stderr, "Not allowed: %s\n", loadfile_buff ); break; case COLON: fprintf( stderr, "-:-" ); break; case BYTE: fprintf( stderr, "#%s#", yytext ); break; case WHITE: fprintf( stderr, "\nWhite Space!\n" ); break; case ENDLINE: fprintf( stderr, "\n" ); break; case REG: fprintf( stderr, "REG" ); break; case ALPHA: fprintf( stderr, "<%s>", loadfile_buff ); break; case BREAK: fprintf( stderr, "BREAK" ); break; case LOAD: fprintf( stderr, "LOAD" ); break; case DELIM: fprintf( stderr, "@" ); break; case ENDMARK: fprintf( stderr, "END\n\n" ); break; default: fprintf( stderr, "\ntokval = %d\n", tokval ); break; } tokval = yylex(); } fclose( yyin ); return; } #endif /* LOADFILE_DEBUG */ /* done after the current pattern has been matched and before the * corresponding action - sets up yytext */ #define YY_DO_BEFORE_ACTION \ yytext = yy_bp; \ yyleng = yy_cp - yy_bp;\ yy_hold_char = *yy_cp; \ *yy_cp = '\0'; \ yy_c_buf_p = yy_cp; #define EOB_ACT_CONTINUE_SCAN 0 #define EOB_ACT_END_OF_FILE 1 #define EOB_ACT_LAST_MATCH 2 /* return all but the first 'n' matched char's back to the input stream */ #define yyless(n) \ do \ { \ /* undo effects of setting up yytext */ \ *yy_cp = yy_hold_char; \ yy_c_buf_p = yy_cp = yy_bp + n; \ YY_DO_BEFORE_ACTION; /* set up yytext again */ \ } \ while ( 0 ) #define unput(c) yyunput( c, yytext ) struct yy_buffer_state { FILE *yy_input_file; YY_CHAR *yy_ch_buf; /* input buffer */ YY_CHAR *yy_buf_pos; /* current position in input buffer */ /* size of input buffer in bytes, not including room ** for EOB characters */ int yy_buf_size; /* number of char's read into yy_ch_buf, not including ** EOB characters */ int yy_n_chars; int yy_eof_status; /* whether we've seen an EOF on this buffer ** (see #defines below: */ }; #define EOF_NOT_SEEN 0 /* "pending" happens when the EOF has been seen but there's still ** some text to process */ #define EOF_PENDING 1 #define EOF_DONE 2 /* BUF_STATE_PTR is a typedef for struct yy_buffer_state: */ static BUF_STATE_PTR yy_current_buffer = NULL; #define CBfptr yy_current_buffer // shorter name for this variable. /* we provide macros for accessing buffer states in case in the ** future we want to put the buffer states in a more general ** "scanner state" */ #define YY_CURRENT_BUFFER yy_current_buffer /* yy_hold_char holds the character lost when yytext is formed */ static YY_CHAR yy_hold_char; static int yy_n_chars; /* number of char's read into yy_ch_buf */ #ifndef YY_USER_ACTION # define YY_USER_ACTION #endif #ifndef YY_USER_INIT # define YY_USER_INIT #endif YY_CHAR *yytext; int yyleng; FILE *yyin = (FILE *) NULL, *yyout = (FILE *) NULL; #define YY_END_OF_BUFFER 13 typedef int yy_state_type; static const short int yy_accept[38] = { 0, 11, 11, 13, 11, 2, 1, 12, 12, 3, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 12, 11, 2, 1, 10, 9, 0, 0, 0, 0, 0, 7, 0, 6, 0, 4, 5, 0 }; static const YY_CHAR yy_ec[128] = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 1, 1, 1, 1, 1, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1, 17, 18, 1, 19, 20, 21, 1, 22, 23, 1, 1, 1, 1, 24, 24, 1, 1, 1, 1, 1, 1, 1, 5, 5, 5, 5, 5, 5, 1, 4, 4, 1, 1, 4, 1, 1, 1, 4, 1, 4, 4, 1, 1, 1, 1, 4, 4, 1, 1, 1, 1, 1, 1 }; static const YY_CHAR yy_meta[25] = { 0, 1, 2, 2, 2, 3, 2, 2, 3, 3, 3, 3, 3, 3, 1, 2, 2, 1, 2, 1, 1, 2, 2, 2, 2 }; static const short int yy_base[40] = { 0, 0, 0, 50, 0, 47, 45, 51, 0, 51, 51, 26, 4, 25, 8, 24, 20, 10, 51, 31, 21, 0, 39, 37, 51, 51, 27, 27, 29, 22, 27, 51, 23, 51, 16, 51, 51, 51, 31, 25 }; static const short int yy_def[40] = { 0, 37, 1, 37, 38, 37, 37, 37, 39, 37, 37, 39, 39, 39, 39, 37, 37, 37, 37, 37, 37, 38, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 0, 37, 37 }; static const short int yy_nxt[76] = { 0, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 11, 14, 11, 4, 15, 16, 4, 17, 4, 4, 18, 19, 20, 7, 25, 26, 27, 24, 25, 28, 25, 21, 36, 35, 34, 33, 32, 31, 30, 23, 22, 25, 29, 25, 25, 25, 25, 23, 22, 37, 3, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37 }; static const short int yy_chk[76] = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 12, 12, 14, 39, 14, 17, 17, 38, 34, 32, 30, 29, 28, 27, 26, 23, 22, 20, 19, 16, 15, 13, 11, 6, 5, 3, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37 }; static yy_state_type yy_last_accepting_state; static YY_CHAR *yy_last_accepting_cpos; /* the intent behind this definition is that it'll catch ** any uses of REJECT which flex missed */ #define REJECT reject_used_but_not_detected #define yymore() yymore_used_but_not_detected #define YY_MORE_ADJ 0 /* these variables are all declared out here so that section 3 code can ** manipulate them */ /* points to current character in buffer */ static YY_CHAR *yy_c_buf_p = (YY_CHAR *) 0; 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; static yy_state_type yy_get_previous_state( void ); static yy_state_type yy_try_NUL_trans( register yy_state_type current_state ); static int yy_get_next_buffer( void ); static void yyunput( YY_CHAR c, register YY_CHAR *buf_ptr ); void yyrestart( FILE *input_file ); void yy_switch_to_buffer( BUF_STATE_PTR new_buffer ); void yy_load_buffer_state( void ); BUF_STATE_PTR yy_create_buffer( FILE *file, int size ); void yy_delete_buffer( BUF_STATE_PTR b ); int yy_init = 1; /* whether we need to initialize */ /* ------------------------------------------------------------------- */ void yy_init_buffer( BUF_STATE_PTR b, FILE *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_eof_status = EOF_NOT_SEEN; return; } static int input() { 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 < &CBfptr->yy_ch_buf[ yy_n_chars ] ) *yy_c_buf_p = '\0'; /* this was really a NUL */ else { /* End of the buffer, we 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; return( input() ); } break; case EOB_ACT_CONTINUE_SCAN: yy_c_buf_p = yytext + YY_MORE_ADJ; break; case EOB_ACT_LAST_MATCH: YY_FATAL_ERROR( "unexpected last match in input()" ); } } } c = *yy_c_buf_p; yy_hold_char = *++yy_c_buf_p; return( c ); } /* YY_DECL expands to yylex(), the main entry point for the scanner: */ YY_DECL { register yy_state_type yy_current_state; register YY_CHAR *yy_cp, *yy_bp; register int yy_act; if (yy_init != 0) // The calling state machine will take care of yy_init { YY_USER_INIT; /* if (CBfptr != NULL) // Added 5/3/98. Is it necessary??? { free( CBfptr ); CBfptr = NULL; } */ if (yy_start == 0) yy_start = 1; /* first start state */ if (yyin == NULL) yyin = stdin; if (yyout == NULL) yyout = stdout; if (CBfptr == NULL) CBfptr = yy_create_buffer( yyin, YY_BUF_SIZE ); else yy_init_buffer( CBfptr, yyin ); yy_load_buffer_state(); yy_init = 0; } 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_cp ]; if (yy_accept[ yy_current_state ] != 0) { 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 = yy_def[ yy_current_state ]; if ( yy_current_state >= 38 ) yy_c = yy_meta[ yy_c ]; } yy_current_state = yy_nxt[ yy_base[ yy_current_state ] + yy_c ]; ++yy_cp; } while ( yy_current_state != 37 ); yy_cp = yy_last_accepting_cpos; yy_current_state = yy_last_accepting_state; yy_find_action: yy_act = yy_accept[ yy_current_state ]; YY_DO_BEFORE_ACTION; YY_USER_ACTION; do_action: /* this label is used only to access EOF actions */ switch (yy_act) { case 0: /* must backtrack */ /* 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: { return ENDLINE; } YY_BREAK case 2: { return WHITE; } YY_BREAK case 3: { return COLON; } YY_BREAK case 4: { return LOAD; } YY_BREAK case 5: { return BREAK; } YY_BREAK case 6: { return REG; } YY_BREAK case 7: { return ENDMARK; } YY_BREAK case 8: { return DELIM; } YY_BREAK case 9: { (void) strcpy( loadfile_buff, yytext ); return ALPHA; } YY_BREAK case 10: { strcpy( loadfile_buff, yytext ); return( BYTE ); } YY_BREAK case 11: { (void) strcpy( loadfile_buff, yytext ); return( UNALLOWED ); } YY_BREAK case 12: YY_FATAL_ERROR( "flex scanner jammed" ); YY_BREAK 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 = yy_cp - yytext - 1; /* undo the effects of YY_DO_BEFORE_ACTION */ *yy_cp = yy_hold_char; /* 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 yyinput(). */ 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; yy_c_buf_p = yytext + 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 + 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_last_accepting_cpos; yy_current_state = yy_last_accepting_state; 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 + YY_MORE_ADJ; yy_act = YY_STATE_EOF((yy_start - 1) / 2); 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 + yy_amount_of_matched_text; yy_current_state = yy_get_previous_state(); yy_cp = yy_c_buf_p; yy_bp = yytext + 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 + YY_MORE_ADJ; goto yy_find_action; } break; } // case YY_END_OF_BUFFER default: #ifdef FLEX_DEBUG printf( "action # %d\n", yy_act ); #endif YY_FATAL_ERROR( "fatal flex scanner internal error--no action found" ); } // switch (yy_act) } // while (1) } /* ---------------------------------------------------------------- ** yy_get_next_buffer - try to read in a new buffer ** ** SYNOPSIS ** ** int yy_get_next_buffer( void ); ** ** 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() { register YY_CHAR *dest = CBfptr->yy_ch_buf; register YY_CHAR *source = yytext - 1; /* copy prev. char, too */ register int number_to_move, i; int ret_val; if (yy_c_buf_p > &CBfptr->yy_ch_buf[ yy_n_chars + 1 ]) YY_FATAL_ERROR( "fatal flex scanner internal error--end of buffer missed" ); /* try to read more data */ /* MMMMMMMMMM first move last chars to start of buffer */ number_to_move = yy_c_buf_p - yytext; for ( i = 0; i < number_to_move; ++i ) *(dest++) = *(source++); /* MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM */ if ( CBfptr->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 = CBfptr->yy_buf_size - number_to_move - 1; if (num_to_read > YY_READ_BUF_SIZE) num_to_read = YY_READ_BUF_SIZE; else if ( num_to_read <= 0 ) YY_FATAL_ERROR( "fatal error - scanner input buffer overflow" ); /* read in more data */ YY_INPUT( (&CBfptr->yy_ch_buf[ number_to_move ]), yy_n_chars, num_to_read ); } if (yy_n_chars == 0) { if (number_to_move == 1) { ret_val = EOB_ACT_END_OF_FILE; CBfptr->yy_eof_status = EOF_DONE; } else { ret_val = EOB_ACT_LAST_MATCH; CBfptr->yy_eof_status = EOF_PENDING; } } else ret_val = EOB_ACT_CONTINUE_SCAN; yy_n_chars += number_to_move; CBfptr->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR; CBfptr->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 = &CBfptr->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( void ); ** --------------------------------------------------------------- */ static yy_state_type yy_get_previous_state() { register yy_state_type yy_current_state; register YY_CHAR *yy_cp; yy_current_state = yy_start; for (yy_cp = yytext + YY_MORE_ADJ; yy_cp < yy_c_buf_p; ++yy_cp) { register YY_CHAR yy_c = (*yy_cp ? yy_ec[ *yy_cp ] : 4); 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 = yy_def[yy_current_state]; if ( yy_current_state >= 38 ) yy_c = yy_meta[yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + 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( register yy_state_type yy_current_state ) { register int yy_is_jam; register YY_CHAR *yy_cp = yy_c_buf_p; register YY_CHAR yy_c = 4; 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 = yy_def[yy_current_state]; if ( yy_current_state >= 38 ) yy_c = yy_meta[yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; yy_is_jam = (yy_current_state == 37); return( yy_is_jam ? 0 : yy_current_state ); } static void yyunput( YY_CHAR c, register YY_CHAR *yy_bp ) { register YY_CHAR *yy_cp = yy_c_buf_p; /* undo effects of setting up yytext */ *yy_cp = yy_hold_char; if ( yy_cp < CBfptr->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 = &CBfptr->yy_ch_buf[CBfptr->yy_buf_size + 2]; register YY_CHAR *source = &CBfptr->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 = CBfptr->yy_buf_size; if ( yy_cp < CBfptr->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 */ return; } /* ------------------------------------------------------------ ** Setup Global variables to the contents of yy_current_buffer ** ------------------------------------------------------------ */ void yy_load_buffer_state( void ) { yy_n_chars = CBfptr->yy_n_chars; yytext = yy_c_buf_p = CBfptr->yy_buf_pos; yyin = CBfptr->yy_input_file; yy_hold_char = *yy_c_buf_p; } void yy_switch_to_buffer( BUF_STATE_PTR new_buffer ) { if (CBfptr == new_buffer) return; if (CBfptr != NULL) { /* flush out information for old buffer */ *yy_c_buf_p = yy_hold_char; CBfptr->yy_buf_pos = yy_c_buf_p; CBfptr->yy_n_chars = yy_n_chars; } CBfptr = 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; return; } /* yy_current_buffer evaluated to NULL in order for this function ** to be called: */ BUF_STATE_PTR yy_create_buffer( FILE *file, int size ) { BUF_STATE_PTR b; b = (BUF_STATE_PTR) calloc( sizeof( struct yy_buffer_state ), 1 ); 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 *) calloc( (unsigned) (b->yy_buf_size + 2), 1 ); if ( !b->yy_ch_buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); yy_init_buffer( b, file ); return( b ); } void yy_delete_buffer( BUF_STATE_PTR b ) { if (b == CBfptr) CBfptr = (BUF_STATE_PTR) NULL; free( (char *) b->yy_ch_buf ); free( (char *) b ); return; } void yyrestart( FILE *input_file ) { yy_init_buffer( CBfptr, input_file ); yy_load_buffer_state(); return; } /* -------------------- END of Z80LexLoader.c file ------------------- */