diff options
Diffstat (limited to 'gnu/usr.bin/bc/scan.c')
| -rw-r--r-- | gnu/usr.bin/bc/scan.c | 1368 |
1 files changed, 1368 insertions, 0 deletions
diff --git a/gnu/usr.bin/bc/scan.c b/gnu/usr.bin/bc/scan.c new file mode 100644 index 000000000000..e1aa2efe9223 --- /dev/null +++ b/gnu/usr.bin/bc/scan.c @@ -0,0 +1,1368 @@ +/* A lexical scanner generated by flex */ + +/* scanner skeleton version: + * $Header: /home/cvs/386BSD/src/gnu/usr.bin/bc/scan.c,v 1.1.1.1 1993/06/19 00:26:18 paul Exp $ + */ + +#define FLEX_SCANNER + +#include <stdio.h> + + +/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */ +#ifdef c_plusplus +#ifndef __cplusplus +#define __cplusplus +#endif +#endif + + +#ifdef __cplusplus + +#include <stdlib.h> +#include <osfcn.h> + +/* use prototypes in function declarations */ +#define YY_USE_PROTOS + +/* the "const" storage-class-modifier is valid */ +#define YY_USE_CONST + +#else /* ! __cplusplus */ + +#ifdef __STDC__ + +#ifdef __GNUC__ +#include <stddef.h> +void *malloc( size_t ); +void free( void* ); +#else +#include <stdlib.h> +#endif /* __GNUC__ */ + +#define YY_USE_PROTOS +#define YY_USE_CONST + +#endif /* __STDC__ */ +#endif /* ! __cplusplus */ + + +#ifdef __TURBOC__ +#define YY_USE_CONST +#endif + + +#ifndef YY_USE_CONST +#define const +#endif + + +#ifdef YY_USE_PROTOS +#define YY_PROTO(proto) proto +#else +#define YY_PROTO(proto) () +/* we can't get here if it's an ANSI C compiler, or a C++ compiler, + * so it's got to be a K&R compiler, and therefore there's no standard + * place from which to include 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) 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 yylex YY_PROTO(( 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 buffer */ +#endif + +typedef struct yy_buffer_state *YY_BUFFER_STATE; + +#define YY_CHAR unsigned char +# line 1 "scan.l" +#define INITIAL 0 +# line 2 "scan.l" +/* scan.l: the (f)lex description file for the scanner. */ + +/* This file is part of bc written for MINIX. + Copyright (C) 1991, 1992 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License , or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not, write to + the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + + You may contact the author by: + e-mail: phil@cs.wwu.edu + us-mail: Philip A. Nelson + Computer Science Department, 9062 + Western Washington University + Bellingham, WA 98226-9062 + +*************************************************************************/ + +#include "bcdefs.h" +#include "y.tab.h" +#include "global.h" +#include "proto.h" + +/* Using flex, we can ask for a smaller input buffer. With lex, this + does nothing! */ + +#ifdef SMALL_BUF +#undef YY_READ_BUF_SIZE +#define YY_READ_BUF_SIZE 512 +#endif + +/* We want to define our own yywrap. */ +#undef yywrap +_PROTOTYPE(int yywrap, (void)); + +/* MINIX returns from read with < 0 if SIGINT is encountered. + In flex, we can redefine YY_INPUT to the following. In lex, this + does nothing! */ +#include <errno.h> +#undef YY_INPUT +#define YY_INPUT(buf,result,max_size) \ + while ( (result = read( fileno(yyin), (char *) buf, max_size )) < 0 ) \ + if (errno != EINTR) \ + YY_FATAL_ERROR( "read() in flex scanner failed" ); + +# line 60 "scan.l" + +/* 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( 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 40 +typedef int yy_state_type; +static const short int yy_accept[144] = + { 0, + 0, 0, 40, 38, 33, 31, 25, 38, 26, 38, + 22, 26, 22, 22, 38, 26, 37, 29, 27, 29, + 38, 22, 35, 35, 35, 35, 35, 35, 35, 35, + 35, 35, 35, 35, 35, 35, 35, 35, 38, 33, + 29, 0, 36, 27, 23, 30, 37, 0, 34, 37, + 37, 0, 28, 32, 35, 35, 35, 35, 35, 35, + 35, 35, 35, 7, 35, 35, 35, 35, 35, 35, + 35, 35, 35, 35, 35, 24, 37, 0, 0, 37, + 0, 35, 35, 35, 35, 35, 6, 35, 35, 35, + 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, + + 35, 13, 35, 35, 35, 14, 16, 35, 17, 35, + 35, 35, 35, 3, 15, 35, 35, 9, 35, 35, + 2, 35, 35, 11, 35, 35, 12, 20, 35, 10, + 35, 8, 35, 1, 4, 21, 5, 35, 35, 35, + 19, 18, 0 + } ; + +static const YY_CHAR yy_ec[256] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 2, 4, 5, 1, 1, 6, 7, 1, 8, + 9, 10, 11, 12, 13, 14, 15, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 1, 17, 18, + 19, 20, 1, 1, 21, 21, 21, 21, 21, 21, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 22, 23, 24, 25, 26, 1, 27, 28, 29, 30, + + 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, + 41, 42, 43, 44, 45, 46, 47, 36, 48, 36, + 49, 36, 50, 51, 52, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1 + } ; + +static const YY_CHAR yy_meta[53] = + { 0, + 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, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, + 1, 1 + } ; + +static const short int yy_base[146] = + { 0, + 0, 0, 193, 194, 190, 194, 172, 185, 170, 181, + 194, 168, 42, 41, 41, 46, 52, 167, 61, 166, + 181, 164, 135, 137, 139, 148, 140, 136, 0, 149, + 27, 50, 147, 130, 126, 141, 40, 36, 120, 168, + 194, 164, 194, 194, 194, 194, 66, 165, 194, 72, + 76, 164, 194, 194, 0, 120, 134, 124, 131, 117, + 117, 122, 132, 0, 113, 117, 117, 128, 119, 118, + 52, 125, 107, 106, 114, 194, 80, 145, 84, 88, + 144, 105, 118, 98, 108, 111, 0, 95, 95, 93, + 105, 102, 91, 95, 88, 103, 85, 93, 84, 85, + + 90, 0, 90, 91, 85, 0, 0, 93, 0, 77, + 76, 90, 74, 0, 0, 75, 87, 0, 90, 85, + 0, 75, 83, 0, 76, 63, 0, 0, 66, 0, + 62, 0, 47, 0, 0, 0, 0, 45, 53, 29, + 0, 0, 194, 111, 56 + } ; + +static const short int yy_def[146] = + { 0, + 143, 1, 143, 143, 143, 143, 143, 144, 143, 143, + 143, 143, 143, 143, 143, 143, 143, 143, 143, 143, + 143, 143, 145, 145, 145, 145, 145, 145, 145, 145, + 145, 145, 145, 145, 145, 145, 145, 145, 143, 143, + 143, 144, 143, 143, 143, 143, 143, 143, 143, 143, + 143, 143, 143, 143, 145, 145, 145, 145, 145, 145, + 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, + 145, 145, 145, 145, 145, 143, 143, 143, 143, 143, + 143, 145, 145, 145, 145, 145, 145, 145, 145, 145, + 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, + + 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, + 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, + 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, + 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, + 145, 145, 0, 143, 143 + } ; + +static const short int yy_nxt[247] = + { 0, + 4, 5, 6, 7, 8, 9, 10, 11, 11, 12, + 13, 11, 14, 15, 16, 17, 11, 18, 19, 20, + 17, 11, 21, 11, 22, 4, 23, 24, 25, 26, + 27, 28, 29, 30, 31, 29, 29, 32, 29, 29, + 33, 34, 35, 36, 37, 29, 29, 38, 29, 11, + 39, 11, 46, 46, 63, 49, 47, 55, 64, 44, + 44, 47, 74, 48, 44, 50, 53, 51, 72, 75, + 53, 53, 51, 53, 52, 53, 65, 142, 96, 41, + 66, 77, 73, 141, 67, 53, 77, 80, 78, 50, + 140, 51, 80, 139, 81, 77, 51, 97, 52, 47, + + 77, 138, 78, 80, 47, 137, 48, 136, 80, 135, + 81, 42, 42, 134, 133, 132, 131, 130, 129, 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, 80, 77, 101, 100, + 99, 98, 95, 94, 93, 92, 91, 90, 89, 88, + 87, 86, 85, 84, 83, 82, 51, 79, 43, 40, + 76, 71, 70, 69, 68, 62, 61, 60, 59, 58, + 57, 56, 44, 54, 41, 41, 44, 45, 44, 43, + 41, 40, 143, 3, 143, 143, 143, 143, 143, 143, + + 143, 143, 143, 143, 143, 143, 143, 143, 143, 143, + 143, 143, 143, 143, 143, 143, 143, 143, 143, 143, + 143, 143, 143, 143, 143, 143, 143, 143, 143, 143, + 143, 143, 143, 143, 143, 143, 143, 143, 143, 143, + 143, 143, 143, 143, 143, 143 + } ; + +static const short int yy_chk[247] = + { 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, 1, 1, 1, + 1, 1, 13, 14, 31, 16, 15, 145, 31, 14, + 13, 15, 38, 15, 16, 17, 19, 17, 37, 38, + 19, 19, 17, 19, 17, 19, 32, 140, 71, 19, + 32, 47, 37, 139, 32, 19, 47, 50, 47, 51, + 138, 51, 50, 133, 50, 77, 51, 71, 51, 79, + + 77, 131, 77, 80, 79, 129, 79, 126, 80, 125, + 80, 144, 144, 123, 122, 120, 119, 117, 116, 113, + 112, 111, 110, 108, 105, 104, 103, 101, 100, 99, + 98, 97, 96, 95, 94, 93, 92, 91, 90, 89, + 88, 86, 85, 84, 83, 82, 81, 78, 75, 74, + 73, 72, 70, 69, 68, 67, 66, 65, 63, 62, + 61, 60, 59, 58, 57, 56, 52, 48, 42, 40, + 39, 36, 35, 34, 33, 30, 28, 27, 26, 25, + 24, 23, 22, 21, 20, 18, 12, 10, 9, 8, + 7, 5, 3, 143, 143, 143, 143, 143, 143, 143, + + 143, 143, 143, 143, 143, 143, 143, 143, 143, 143, + 143, 143, 143, 143, 143, 143, 143, 143, 143, 143, + 143, 143, 143, 143, 143, 143, 143, 143, 143, 143, + 143, 143, 143, 143, 143, 143, 143, 143, 143, 143, + 143, 143, 143, 143, 143, 143 + } ; + +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 yy_get_previous_state YY_PROTO(( void )); +static yy_state_type yy_try_NUL_trans YY_PROTO(( yy_state_type current_state )); +static int yy_get_next_buffer YY_PROTO(( void )); +static void yyunput YY_PROTO(( YY_CHAR c, YY_CHAR *buf_ptr )); +void yyrestart YY_PROTO(( FILE *input_file )); +void yy_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer )); +void yy_load_buffer_state YY_PROTO(( void )); +YY_BUFFER_STATE yy_create_buffer YY_PROTO(( FILE *file, int size )); +void yy_delete_buffer YY_PROTO(( YY_BUFFER_STATE b )); +void yy_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file )); + +#define yy_new_buffer yy_create_buffer + +#ifdef __cplusplus +static int yyinput YY_PROTO(( void )); +#else +static int input YY_PROTO(( void )); +#endif + +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; +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 >= 144 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; + ++yy_cp; + } + while ( yy_base[yy_current_state] != 194 ); + +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: +# line 61 "scan.l" +return(Define); + YY_BREAK +case 2: +# line 62 "scan.l" +return(Break); + YY_BREAK +case 3: +# line 63 "scan.l" +return(Quit); + YY_BREAK +case 4: +# line 64 "scan.l" +return(Length); + YY_BREAK +case 5: +# line 65 "scan.l" +return(Return); + YY_BREAK +case 6: +# line 66 "scan.l" +return(For); + YY_BREAK +case 7: +# line 67 "scan.l" +return(If); + YY_BREAK +case 8: +# line 68 "scan.l" +return(While); + YY_BREAK +case 9: +# line 69 "scan.l" +return(Sqrt); + YY_BREAK +case 10: +# line 70 "scan.l" +return(Scale); + YY_BREAK +case 11: +# line 71 "scan.l" +return(Ibase); + YY_BREAK +case 12: +# line 72 "scan.l" +return(Obase); + YY_BREAK +case 13: +# line 73 "scan.l" +return(Auto); + YY_BREAK +case 14: +# line 74 "scan.l" +return(Else); + YY_BREAK +case 15: +# line 75 "scan.l" +return(Read); + YY_BREAK +case 16: +# line 76 "scan.l" +return(Halt); + YY_BREAK +case 17: +# line 77 "scan.l" +return(Last); + YY_BREAK +case 18: +# line 78 "scan.l" +return(Warranty); + YY_BREAK +case 19: +# line 79 "scan.l" +return(Continue); + YY_BREAK +case 20: +# line 80 "scan.l" +return(Print); + YY_BREAK +case 21: +# line 81 "scan.l" +return(Limits); + YY_BREAK +case 22: +# line 82 "scan.l" +{ yylval.c_value = yytext[0]; + return((int)yytext[0]); } + YY_BREAK +case 23: +# line 84 "scan.l" +{ return(AND); } + YY_BREAK +case 24: +# line 85 "scan.l" +{ return(OR); } + YY_BREAK +case 25: +# line 86 "scan.l" +{ return(NOT); } + YY_BREAK +case 26: +# line 87 "scan.l" +{ yylval.c_value = yytext[0]; return(MUL_OP); } + YY_BREAK +case 27: +# line 88 "scan.l" +{ yylval.c_value = yytext[0]; return(ASSIGN_OP); } + YY_BREAK +case 28: +# line 89 "scan.l" +{ +#ifdef OLD_EQ_OP + char warn_save; + warn_save = warn_not_std; + warn_not_std = TRUE; + warn ("Old fashioned =<op>"); + warn_not_std = warn_save; + yylval.c_value = yytext[1]; +#else + yylval.c_value = '='; + yyless (1); +#endif + return(ASSIGN_OP); + } + YY_BREAK +case 29: +# line 103 "scan.l" +{ yylval.s_value = strcopyof(yytext); return(REL_OP); } + YY_BREAK +case 30: +# line 104 "scan.l" +{ yylval.c_value = yytext[0]; return(INCR_DECR); } + YY_BREAK +case 31: +# line 105 "scan.l" +{ line_no++; return(NEWLINE); } + YY_BREAK +case 32: +# line 106 "scan.l" +{ line_no++; /* ignore a "quoted" newline */ } + YY_BREAK +case 33: +# line 107 "scan.l" +{ /* ignore spaces and tabs */ } + YY_BREAK +case 34: +# line 108 "scan.l" +{ + int c; + + for (;;) + { + while ( ((c=input()) != '*') && (c != EOF)) + /* eat it */ + if (c == '\n') line_no++; + if (c == '*') + { + while ( (c=input()) == '*') /* eat it*/; + if (c == '/') break; /* at end of comment */ + if (c == '\n') line_no++; + } + if (c == EOF) + { + fprintf (stderr,"EOF encountered in a comment.\n"); + break; + } + } + } + YY_BREAK +case 35: +# line 129 "scan.l" +{ yylval.s_value = strcopyof(yytext); return(NAME); } + YY_BREAK +case 36: +# line 130 "scan.l" +{ + unsigned char *look; + int count = 0; + yylval.s_value = strcopyof(yytext); + for (look = yytext; *look != 0; look++) + { + if (*look == '\n') line_no++; + if (*look == '"') count++; + } + if (count != 2) yyerror ("NUL character in string."); + return(STRING); + } + YY_BREAK +case 37: +# line 142 "scan.l" +{ + unsigned char *src, *dst; + int len; + /* remove a trailing decimal point. */ + len = strlen(yytext); + if (yytext[len-1] == '.') + yytext[len-1] = 0; + /* remove leading zeros. */ + src = yytext; + dst = yytext; + while (*src == '0') src++; + if (*src == 0) src--; + /* Copy strings removing the newlines. */ + while (*src != 0) + { + if (*src == '\\') + { + src++; src++; + line_no++; + } + else + *dst++ = *src++; + } + *dst = 0; + yylval.s_value = strcopyof(yytext); + return(NUMBER); + } + YY_BREAK +case 38: +# line 169 "scan.l" +{ + if (yytext[0] < ' ') + yyerror ("illegal character: ^%c",yytext[0] + '@'); + else + if (yytext[0] > '~') + yyerror ("illegal character: \\%3d", (int) yytext[0]); + else + yyerror ("illegal character: %s",yytext); + } + YY_BREAK +case 39: +# line 178 "scan.l" +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 + { + 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 == 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; + + 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] : 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 >= 144 ) + 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 ); + */ + +#ifdef YY_USE_PROTOS +static yy_state_type yy_try_NUL_trans( register yy_state_type yy_current_state ) +#else +static yy_state_type yy_try_NUL_trans( yy_current_state ) +register yy_state_type yy_current_state; +#endif + + { + register int yy_is_jam; + 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 >= 144 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; + yy_is_jam = (yy_current_state == 143); + + return ( yy_is_jam ? 0 : yy_current_state ); + } + + +#ifdef YY_USE_PROTOS +static void yyunput( YY_CHAR c, register YY_CHAR *yy_bp ) +#else +static void yyunput( c, yy_bp ) +YY_CHAR c; +register YY_CHAR *yy_bp; +#endif + + { + register YY_CHAR *yy_cp = yy_c_buf_p; + + /* undo effects of setting up yytext */ + *yy_cp = yy_hold_char; + + if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 ) + { /* need to shift things up to make room */ + register int number_to_move = yy_n_chars + 2; /* +2 for EOB chars */ + register YY_CHAR *dest = + &yy_current_buffer->yy_ch_buf[yy_current_buffer->yy_buf_size + 2]; + register YY_CHAR *source = + &yy_current_buffer->yy_ch_buf[number_to_move]; + + while ( source > yy_current_buffer->yy_ch_buf ) + *--dest = *--source; + + yy_cp += dest - source; + yy_bp += dest - source; + yy_n_chars = yy_current_buffer->yy_buf_size; + + if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 ) + YY_FATAL_ERROR( "flex scanner push-back overflow" ); + } + + if ( yy_cp > yy_bp && yy_cp[-1] == '\n' ) + yy_cp[-2] = '\n'; + + *--yy_cp = c; + + /* note: the formal parameter *must* be called "yy_bp" for this + * macro to now work correctly + */ + YY_DO_BEFORE_ACTION; /* set up yytext again */ + } + + +#ifdef __cplusplus +static int yyinput() +#else +static int input() +#endif + + { + int c; + YY_CHAR *yy_cp = yy_c_buf_p; + + *yy_cp = yy_hold_char; + + if ( *yy_c_buf_p == YY_END_OF_BUFFER_CHAR ) + { + /* yy_c_buf_p now points to the character we want to return. + * If this occurs *before* the EOB characters, then it's a + * valid NUL; if not, then we've hit the end of the buffer. + */ + if ( yy_c_buf_p < &yy_current_buffer->yy_ch_buf[yy_n_chars] ) + /* this was really a NUL */ + *yy_c_buf_p = '\0'; + + else + { /* need more input */ + yytext = yy_c_buf_p; + ++yy_c_buf_p; + + switch ( yy_get_next_buffer() ) + { + case EOB_ACT_END_OF_FILE: + { + if ( yywrap() ) + { + yy_c_buf_p = yytext + YY_MORE_ADJ; + return ( EOF ); + } + + YY_NEW_FILE; + +#ifdef __cplusplus + return ( yyinput() ); +#else + return ( input() ); +#endif + } + break; + + case EOB_ACT_CONTINUE_SCAN: + yy_c_buf_p = yytext + YY_MORE_ADJ; + break; + + case EOB_ACT_LAST_MATCH: +#ifdef __cplusplus + YY_FATAL_ERROR( "unexpected last match in yyinput()" ); +#else + YY_FATAL_ERROR( "unexpected last match in input()" ); +#endif + } + } + } + + c = *yy_c_buf_p; + yy_hold_char = *++yy_c_buf_p; + + return ( c ); + } + + +#ifdef YY_USE_PROTOS +void yyrestart( FILE *input_file ) +#else +void yyrestart( input_file ) +FILE *input_file; +#endif + + { + yy_init_buffer( yy_current_buffer, input_file ); + yy_load_buffer_state(); + } + + +#ifdef YY_USE_PROTOS +void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer ) +#else +void yy_switch_to_buffer( new_buffer ) +YY_BUFFER_STATE new_buffer; +#endif + + { + if ( yy_current_buffer == new_buffer ) + return; + + if ( yy_current_buffer ) + { + /* flush out information for old buffer */ + *yy_c_buf_p = yy_hold_char; + yy_current_buffer->yy_buf_pos = yy_c_buf_p; + yy_current_buffer->yy_n_chars = yy_n_chars; + } + + yy_current_buffer = new_buffer; + yy_load_buffer_state(); + + /* we don't actually know whether we did this switch during + * EOF (yywrap()) processing, but the only time this flag + * is looked at is after yywrap() is called, so it's safe + * to go ahead and always set it. + */ + yy_did_buffer_switch_on_eof = 1; + } + + +#ifdef YY_USE_PROTOS +void yy_load_buffer_state( void ) +#else +void yy_load_buffer_state() +#endif + + { + yy_n_chars = yy_current_buffer->yy_n_chars; + yytext = yy_c_buf_p = yy_current_buffer->yy_buf_pos; + yyin = yy_current_buffer->yy_input_file; + yy_hold_char = *yy_c_buf_p; + } + + +#ifdef YY_USE_PROTOS +YY_BUFFER_STATE yy_create_buffer( FILE *file, int size ) +#else +YY_BUFFER_STATE yy_create_buffer( file, size ) +FILE *file; +int size; +#endif + + { + YY_BUFFER_STATE b; + + b = (YY_BUFFER_STATE) malloc( sizeof( struct yy_buffer_state ) ); + + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_buf_size = size; + + /* yy_ch_buf has to be 2 characters longer than the size given because + * we need to put in 2 end-of-buffer characters. + */ + b->yy_ch_buf = (YY_CHAR *) malloc( (unsigned) (b->yy_buf_size + 2) ); + + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + yy_init_buffer( b, file ); + + return ( b ); + } + + +#ifdef YY_USE_PROTOS +void yy_delete_buffer( YY_BUFFER_STATE b ) +#else +void yy_delete_buffer( b ) +YY_BUFFER_STATE b; +#endif + + { + if ( b == yy_current_buffer ) + yy_current_buffer = (YY_BUFFER_STATE) 0; + + free( (char *) b->yy_ch_buf ); + free( (char *) b ); + } + + +#ifdef YY_USE_PROTOS +void yy_init_buffer( YY_BUFFER_STATE b, FILE *file ) +#else +void yy_init_buffer( b, file ) +YY_BUFFER_STATE b; +FILE *file; +#endif + + { + b->yy_input_file = file; + + /* we put in the '\n' and start reading from [1] so that an + * initial match-at-newline will be true. + */ + + b->yy_ch_buf[0] = '\n'; + b->yy_n_chars = 1; + + /* we always need two end-of-buffer characters. The first causes + * a transition to the end-of-buffer state. The second causes + * a jam in that state. + */ + b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; + b->yy_ch_buf[2] = YY_END_OF_BUFFER_CHAR; + + b->yy_buf_pos = &b->yy_ch_buf[1]; + + b->yy_eof_status = EOF_NOT_SEEN; + } +# line 178 "scan.l" + + + + +/* This is the way to get multiple files input into lex. */ + +int +yywrap() +{ + if (!open_new_file ()) return (1); /* EOF on standard in. */ + return (0); /* We have more input. */ +} |