/* A lexical scanner for NetHack generated by flex */ /* scanner skeleton version: * flexhack.skel 3.1.3 (from .../flex/RCS/flex.skel,v 2.16 90/08/03 14:09:36) */ #define FLEXHACK_SCANNER /* 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 */ #define ECHO (void)fwrite((genericptr_t)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 = fread((genericptr_t)buf, 1, max_size, yyin)) <= 0 && \ !feof(yyin)) YY_FATAL_ERROR( "fread(yyin) in flex scanner failed" ); #define YY_NULL 0 /* no semi-colon after return; correct usage is to write "yyterminate();" */ #define yyterminate() return ( YY_NULL ) /* report a fatal error */ #define YY_FATAL_ERROR(msg) \ do { \ (void) fputs( msg, stderr ); \ (void) putc( '\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 NDECL(yylex) /* 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 buffer */ #endif typedef struct yy_buffer_state *YY_BUFFER_STATE; #define YY_CHAR char #define INITIAL 0 /* SCCS Id: @(#)dgn_lex.c 3.1 93/06/17 */ /* Copyright (c) 1989 by Jean-Christophe Collet */ /* Copyright (c) 1990 by M. Stephenson */ /* NetHack may be freely redistributed. See license for details. */ #define DGN_COMP #include "config.h" #include "dgn_comp.h" #include "dgn_file.h" long *FDECL(alloc, (unsigned int)); /* * Most of these don't exist in flex, yywrap is macro and * yyunput is properly declared in flex.skel. */ #if !defined(FLEX_SCANNER) && !defined(FLEXHACK_SCANNER) int FDECL(yyback, (int *, int)); int NDECL(yylook); int NDECL(yyinput); int NDECL(yywrap); int NDECL(yylex); /* Traditional lexes let yyunput() and yyoutput() default to int; * newer ones may declare them as void since they don't return * values. For even more fun, the lex supplied as part of the * newer unbundled compiler for SunOS 4.x adds the void declarations * (under __STDC__ or _cplusplus ifdefs -- otherwise they remain * int) while the bundled lex and the one with the older unbundled * compiler do not. To detect this, we need help from outside -- * sys/unix/Makefile.utl. */ # if defined(NeXT) || defined(SVR4) # define VOIDYYPUT # endif # if !defined(VOIDYYPUT) # if defined(POSIX_TYPES) && !defined(BOS) && !defined(HISX) && !defined(_M_UNIX) # define VOIDYYPUT # endif # endif # if !defined(VOIDYYPUT) && defined(WEIRD_LEX) # if defined(SUNOS4) && defined(__STDC__) && (WEIRD_LEX > 1) # define VOIDYYPUT # endif # endif # ifdef VOIDYYPUT void FDECL(yyunput, (int)); void FDECL(yyoutput, (int)); # else int FDECL(yyunput, (int)); int FDECL(yyoutput, (int)); # endif #endif /* !FLEX_SCANNER && !FLEXHACK_SCANNER */ void FDECL(init_yyin, (FILE *)); void FDECL(init_yyout, (FILE *)); #ifdef MICRO #undef exit extern void FDECL(exit, (int)); #endif /* this doesn't always get put in dgn_comp.h * (esp. when using older versions of bison) */ extern YYSTYPE yylval; int line_number = 1; /* * This is a hack required by Michael Hamel to get things * working on the Mac. */ #if defined(applec) && !defined(FLEX_SCANNER) && !defined(FLEXHACK_SCANNER) #undef input #undef unput #define unput(c) { yytchar = (c); if (yytchar == 10) yylineno--; *yysptr++ = yytchar; } # ifndef YYNEWLINE # define YYNEWLINE 10 # endif char input() /* Under MPW \n is chr(13)! Compensate for this. */ { if (yysptr > yysbuf) return(*--yysptr); else { yytchar = getc(yyin); if (yytchar == '\n') { yylineno++; return(YYNEWLINE); } if (yytchar == EOF) return(0); else return(yytchar); } } #endif /* applec && !FLEX_SCANNER && !FLEXHACK_SCANNER */ /* 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 characters 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((int)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 characters 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 */ #define EOF_NOT_SEEN 0 /* "pending" happens when the EOF has been seen but there's still * some text process */ #define EOF_PENDING 1 #define EOF_DONE 2 }; static YY_BUFFER_STATE yy_current_buffer; /* 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 characters read into yy_ch_buf */ #ifndef YY_USER_ACTION #define YY_USER_ACTION #endif #ifndef YY_USER_INIT #define YY_USER_INIT #endif extern YY_CHAR *yytext; extern int yyleng; extern FILE *yyin, *yyout; YY_CHAR *yytext; int yyleng; FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; #define YY_END_OF_BUFFER 36 typedef int yy_state_type; static const short int yy_accept[194] = { 0, 0, 0, 36, 34, 33, 32, 34, 29, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 33, 0, 30, 29, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 31, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 0, 0, 0, 0, 0, 0, 4, 0, 25, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 5, 0, 0, 23, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 20, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 22, 15, 0, 21, 7, 19, 0, 0, 0, 0, 0, 0, 13, 0, 0, 0, 26, 16, 0, 0, 12, 0, 0, 0, 11, 9, 0, 17, 18, 0, 27, 0, 28, 24, 10, 0 } ; static const YY_CHAR yy_ec[128] = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 4, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 6, 1, 1, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 1, 16, 17, 18, 19, 20, 1, 21, 22, 23, 24, 25, 1, 1, 26, 1, 1, 1, 1, 1, 27, 1, 28, 1, 29, 30, 31, 32, 33, 34, 35, 1, 36, 37, 38, 39, 40, 41, 1, 42, 43, 44, 45, 1, 46, 1, 1, 47, 1, 1, 1, 1, 1 } ; static const YY_CHAR yy_meta[48] = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 } ; static const short int yy_base[196] = { 0, 0, 212, 216, 218, 213, 218, 210, 207, 196, 190, 196, 37, 191, 197, 186, 188, 171, 164, 172, 174, 173, 18, 160, 159, 154, 157, 11, 193, 193, 190, 218, 187, 177, 184, 183, 167, 170, 164, 161, 166, 174, 155, 136, 144, 134, 132, 133, 26, 135, 143, 147, 128, 145, 218, 169, 218, 158, 152, 154, 159, 154, 145, 44, 142, 47, 124, 124, 125, 129, 129, 115, 27, 121, 113, 111, 120, 115, 116, 134, 142, 132, 128, 137, 121, 130, 129, 125, 129, 131, 97, 218, 105, 94, 101, 95, 96, 94, 99, 105, 101, 89, 218, 95, 112, 114, 51, 112, 107, 218, 110, 114, 111, 106, 96, 85, 76, 81, 82, 88, 69, 218, 81, 76, 75, 218, 78, 99, 218, 88, 97, 87, 88, 92, 93, 88, 91, 90, 71, 65, 218, 62, 60, 57, 56, 218, 59, 54, 74, 84, 65, 66, 218, 70, 65, 70, 60, 68, 218, 218, 52, 218, 218, 218, 46, 50, 57, 61, 67, 62, 218, 67, 64, 63, 218, 218, 42, 41, 218, 61, 53, 49, 218, 218, 50, 218, 218, 51, 218, 46, 218, 218, 218, 218, 61, 59 } ; static const short int yy_def[196] = { 0, 193, 1, 193, 193, 193, 193, 194, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 195, 193, 194, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 195, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 0, 193, 193 } ; static const short int yy_nxt[266] = { 0, 4, 5, 6, 7, 4, 8, 9, 10, 11, 12, 13, 4, 4, 4, 4, 14, 4, 4, 4, 15, 16, 4, 4, 4, 4, 4, 4, 4, 17, 18, 4, 4, 4, 19, 4, 4, 20, 21, 22, 4, 23, 24, 25, 26, 27, 4, 4, 36, 47, 53, 85, 54, 72, 73, 86, 88, 96, 48, 129, 55, 37, 30, 89, 192, 191, 190, 130, 189, 188, 187, 186, 97, 185, 184, 183, 182, 181, 180, 179, 178, 177, 176, 175, 174, 173, 172, 171, 170, 169, 168, 167, 166, 165, 164, 163, 162, 161, 160, 159, 158, 157, 156, 155, 154, 153, 152, 151, 150, 149, 148, 147, 146, 145, 144, 143, 142, 141, 140, 139, 138, 137, 136, 135, 134, 133, 132, 131, 128, 127, 126, 125, 124, 123, 122, 121, 120, 119, 118, 117, 116, 115, 114, 113, 112, 111, 110, 109, 108, 107, 106, 105, 104, 103, 102, 101, 100, 99, 98, 95, 94, 93, 92, 91, 90, 87, 84, 83, 82, 81, 80, 79, 56, 78, 77, 76, 75, 74, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 32, 31, 29, 56, 52, 51, 50, 49, 46, 45, 44, 43, 42, 41, 40, 39, 38, 35, 34, 33, 32, 31, 29, 193, 28, 3, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193 } ; static const short int yy_chk[266] = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 12, 22, 27, 63, 27, 48, 48, 63, 65, 72, 22, 106, 195, 12, 194, 65, 189, 187, 184, 106, 181, 180, 179, 177, 72, 176, 173, 172, 171, 169, 168, 167, 166, 165, 164, 160, 157, 156, 155, 154, 153, 151, 150, 149, 148, 147, 146, 144, 143, 142, 141, 139, 138, 137, 136, 135, 134, 133, 132, 131, 130, 129, 127, 126, 124, 123, 122, 120, 119, 118, 117, 116, 115, 114, 113, 112, 111, 110, 108, 107, 105, 104, 103, 101, 100, 99, 98, 97, 96, 95, 94, 93, 92, 90, 89, 88, 87, 86, 85, 84, 83, 82, 81, 80, 79, 78, 77, 76, 75, 74, 73, 71, 70, 69, 68, 67, 66, 64, 62, 61, 60, 59, 58, 57, 55, 53, 52, 51, 50, 49, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 30, 29, 28, 26, 25, 24, 23, 21, 20, 19, 18, 17, 16, 15, 14, 13, 11, 10, 9, 8, 7, 5, 3, 2, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193, 193 } ; 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_init = 1; /* whether we need to initialize */ static int yy_start = 0; /* start state number */ /* flag which is used to allow yywrap()'s to do buffer switches * instead of setting up a fresh yyin. A bit of a hack ... */ static int yy_did_buffer_switch_on_eof; static yy_state_type NDECL(yy_get_previous_state); static yy_state_type FDECL(yy_try_NUL_trans, (yy_state_type)); static int NDECL(yy_get_next_buffer); #if 0 /* not needed for NetHack */ static int NDECL(yyinput); static void FDECL(yyunput, (int,YY_CHAR *)); #endif void FDECL(yyrestart, (FILE *)); void FDECL(yy_switch_to_buffer, (YY_BUFFER_STATE)); void NDECL(yy_load_buffer_state); YY_BUFFER_STATE FDECL(yy_create_buffer, (FILE *,int)); void FDECL(yy_delete_buffer, (YY_BUFFER_STATE)); void FDECL(yy_init_buffer, (YY_BUFFER_STATE,FILE *)); #define yy_new_buffer yy_create_buffer YY_DECL { register yy_state_type yy_current_state; register YY_CHAR *yy_cp, *yy_bp; register int yy_act; if ( yy_init ) { YY_USER_INIT; if ( ! yy_start ) yy_start = 1; /* first start state */ if ( ! yyin ) yyin = stdin; if ( ! yyout ) yyout = stdout; if ( yy_current_buffer ) yy_init_buffer( yy_current_buffer, yyin ); else yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); 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; if ( yy_bp[-1] == '\n' ) ++yy_current_state; yy_match: do { register YY_CHAR yy_c = yy_ec[*yy_cp]; if ( yy_accept[yy_current_state] ) { yy_last_accepting_state = yy_current_state; yy_last_accepting_cpos = yy_cp; } while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) { yy_current_state = yy_def[yy_current_state]; if ( yy_current_state >= 194 ) yy_c = yy_meta[yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; ++yy_cp; } while ( yy_current_state != 193 ); 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(A_DUNGEON); YY_BREAK case 2: { yylval.i=1; return(UP_OR_DOWN); } YY_BREAK case 3: { yylval.i=0; return(UP_OR_DOWN); } YY_BREAK case 4: return(ENTRY); YY_BREAK case 5: return(STAIR); YY_BREAK case 6: return(NO_UP); YY_BREAK case 7: return(NO_DOWN); YY_BREAK case 8: return(PORTAL); YY_BREAK case 9: return(PROTOFILE); YY_BREAK case 10: return(DESCRIPTION); YY_BREAK case 11: return(LEVELDESC); YY_BREAK case 12: return(ALIGNMENT); YY_BREAK case 13: return(LEVALIGN); YY_BREAK case 14: { yylval.i=TOWN ; return(DESCRIPTOR); } YY_BREAK case 15: { yylval.i=HELLISH ; return(DESCRIPTOR); } YY_BREAK case 16: { yylval.i=MAZELIKE ; return(DESCRIPTOR); } YY_BREAK case 17: { yylval.i=ROGUELIKE ; return(DESCRIPTOR); } YY_BREAK case 18: { yylval.i=D_ALIGN_NONE ; return(DESCRIPTOR); } YY_BREAK case 19: { yylval.i=D_ALIGN_NONE ; return(DESCRIPTOR); } YY_BREAK case 20: { yylval.i=D_ALIGN_LAWFUL ; return(DESCRIPTOR); } YY_BREAK case 21: { yylval.i=D_ALIGN_NEUTRAL ; return(DESCRIPTOR); } YY_BREAK case 22: { yylval.i=D_ALIGN_CHAOTIC ; return(DESCRIPTOR); } YY_BREAK case 23: return(BRANCH); YY_BREAK case 24: return(CHBRANCH); YY_BREAK case 25: return(LEVEL); YY_BREAK case 26: return(RNDLEVEL); YY_BREAK case 27: return(CHLEVEL); YY_BREAK case 28: return(RNDCHLEVEL); YY_BREAK case 29: { yylval.i=atoi(yytext); return(INTEGER); } YY_BREAK case 30: { yytext[yyleng-1] = 0; /* Discard the trailing \" */ yylval.str = (char *) alloc(strlen(yytext+1)+1); strcpy(yylval.str, yytext+1); /* Discard the first \" */ return(STRING); } YY_BREAK case 31: { line_number++; } YY_BREAK case 32: { line_number++; } YY_BREAK case 33: ; /* skip trailing tabs & spaces */ YY_BREAK case 34: { return yytext[0]; } YY_BREAK case 35: ECHO; 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; } default: #ifdef FLEX_DEBUG printf( "action # %d\n", yy_act ); #endif YY_FATAL_ERROR( "fatal flex scanner internal error--no action found" ); } } } /* yy_get_next_buffer - try to read in a new buffer * * synopsis * int yy_get_next_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() { register YY_CHAR *dest = yy_current_buffer->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 > &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] ) YY_FATAL_ERROR( "fatal flex scanner internal error--end of buffer missed" ); /* try to read more data */ /* 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++); 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; 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( (&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; yy_current_buffer->yy_eof_status = EOF_DONE; } 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 = &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; register YY_CHAR *yy_bp = yytext; yy_current_state = yy_start; if ( yy_bp[-1] == '\n' ) ++yy_current_state; 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] : 1); if ( yy_accept[yy_current_state] ) { yy_last_accepting_state = yy_current_state; yy_last_accepting_cpos = yy_cp; } while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) { yy_current_state = yy_def[yy_current_state]; if ( yy_current_state >= 194 ) 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( yy_current_state ) 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 = 1; if ( yy_accept[yy_current_state] ) { yy_last_accepting_state = yy_current_state; yy_last_accepting_cpos = yy_cp; } while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) { yy_current_state = yy_def[yy_current_state]; if ( yy_current_state >= 194 ) yy_c = yy_meta[yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; yy_is_jam = (yy_current_state == 193); return ( yy_is_jam ? 0 : yy_current_state ); } #if 0 /* not needed for NetHack */ static void yyunput( in_c, yy_bp ) int in_c; /* YY_CHAR c; */ register YY_CHAR *yy_bp; { register YY_CHAR *yy_cp = yy_c_buf_p; YY_CHAR c = (YY_CHAR)in_c; /* 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 */ } static int yyinput() { 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; return ( yyinput() ); } 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 yyinput()" ); } } } c = *yy_c_buf_p; yy_hold_char = *++yy_c_buf_p; return ( c ); } #endif /* 0 */ void yyrestart( input_file ) FILE *input_file; { yy_init_buffer( yy_current_buffer, input_file ); yy_load_buffer_state(); } void yy_switch_to_buffer( new_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; } void yy_load_buffer_state() { 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; } YY_BUFFER_STATE yy_create_buffer( file, size ) FILE *file; int size; { YY_BUFFER_STATE b; b = (YY_BUFFER_STATE) alloc( sizeof( struct yy_buffer_state ) ); 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 *) alloc( (unsigned) (b->yy_buf_size + 2) ); yy_init_buffer( b, file ); return ( b ); } void yy_delete_buffer( b ) YY_BUFFER_STATE b; { if ( b == yy_current_buffer ) yy_current_buffer = (YY_BUFFER_STATE) 0; free((genericptr_t)b->yy_ch_buf); free((genericptr_t)b); } void yy_init_buffer( b, file ) YY_BUFFER_STATE 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; } /* routine to switch to another input file; needed for flex */ void init_yyin( input_f ) FILE *input_f; { #if defined(FLEX_SCANNER) || defined(FLEXHACK_SCANNER) if (yyin) yyrestart(input_f); else #endif yyin = input_f; } /* analogous routine (for completeness) */ void init_yyout( output_f ) FILE *output_f; { yyout = output_f; }