| /* A lexical scanner generated by flex */ |
| |
| /* scanner skeleton version: |
| * $Header$ |
| */ |
| |
| #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 |
| #define INITIAL 0 |
| /* 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" ); |
| |
| |
| /* 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: |
| return(Define); |
| YY_BREAK |
| case 2: |
| return(Break); |
| YY_BREAK |
| case 3: |
| return(Quit); |
| YY_BREAK |
| case 4: |
| return(Length); |
| YY_BREAK |
| case 5: |
| return(Return); |
| YY_BREAK |
| case 6: |
| return(For); |
| YY_BREAK |
| case 7: |
| return(If); |
| YY_BREAK |
| case 8: |
| return(While); |
| YY_BREAK |
| case 9: |
| return(Sqrt); |
| YY_BREAK |
| case 10: |
| return(Scale); |
| YY_BREAK |
| case 11: |
| return(Ibase); |
| YY_BREAK |
| case 12: |
| return(Obase); |
| YY_BREAK |
| case 13: |
| return(Auto); |
| YY_BREAK |
| case 14: |
| return(Else); |
| YY_BREAK |
| case 15: |
| return(Read); |
| YY_BREAK |
| case 16: |
| return(Halt); |
| YY_BREAK |
| case 17: |
| return(Last); |
| YY_BREAK |
| case 18: |
| return(Warranty); |
| YY_BREAK |
| case 19: |
| return(Continue); |
| YY_BREAK |
| case 20: |
| return(Print); |
| YY_BREAK |
| case 21: |
| return(Limits); |
| YY_BREAK |
| case 22: |
| { yylval.c_value = yytext[0]; |
| return((int)yytext[0]); } |
| YY_BREAK |
| case 23: |
| { return(AND); } |
| YY_BREAK |
| case 24: |
| { return(OR); } |
| YY_BREAK |
| case 25: |
| { return(NOT); } |
| YY_BREAK |
| case 26: |
| { yylval.c_value = yytext[0]; return(MUL_OP); } |
| YY_BREAK |
| case 27: |
| { yylval.c_value = yytext[0]; return(ASSIGN_OP); } |
| YY_BREAK |
| case 28: |
| { |
| #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: |
| { yylval.s_value = strcopyof((yytext)); return(REL_OP); } |
| YY_BREAK |
| case 30: |
| { yylval.c_value = yytext[0]; return(INCR_DECR); } |
| YY_BREAK |
| case 31: |
| { line_no++; return(NEWLINE); } |
| YY_BREAK |
| case 32: |
| { line_no++; /* ignore a "quoted" newline */ } |
| YY_BREAK |
| case 33: |
| { /* ignore spaces and tabs */ } |
| YY_BREAK |
| case 34: |
| { |
| int c; |
| |
| for (;;) |
| { |
| #ifdef __cplusplus |
| while ( ((c=yyinput()) != '*') && (c != EOF)) |
| #else |
| while ( ((c=input()) != '*') && (c != EOF)) |
| #endif |
| /* eat it */ |
| if (c == '\n') line_no++; |
| if (c == '*') |
| { |
| #ifdef __cplusplus |
| while ( (c=yyinput()) == '*') /* eat it*/; |
| #else |
| while ( (c=input()) == '*') /* eat it*/; |
| #endif |
| 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: |
| { yylval.s_value = strcopyof((yytext)); return(NAME); } |
| YY_BREAK |
| case 36: |
| { |
| /* 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: |
| { |
| /* unsigned */ char *src, *dst; |
| int len; |
| /* remove a trailing decimal point. */ |
| len = strlen((const char *)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: |
| { |
| 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: |
| 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_base[yy_current_state] == 194); |
| |
| 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(void) |
| #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; |
| } |
| |
| |
| /* 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. */ |
| } |