/* A lexical scanner generated by flex */ /* Scanner skeleton version: * $Header: /home/daffy/u0/vern/flex/RCS/flex.skl,v 2.91 96/09/10 16:58:48 vern Exp $ */ #define FLEX_SCANNER #define YY_FLEX_MAJOR_VERSION 2 #define YY_FLEX_MINOR_VERSION 5 #include /* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */ #ifdef c_plusplus #ifndef __cplusplus #define __cplusplus #endif #endif #ifdef __cplusplus #include #include /* Use prototypes in function declarations. */ #define YY_USE_PROTOS /* The "const" storage-class-modifier is valid. */ #define YY_USE_CONST #else /* ! __cplusplus */ #if __STDC__ #define YY_USE_PROTOS #define YY_USE_CONST #endif /* __STDC__ */ #endif /* ! __cplusplus */ #ifdef __TURBOC__ #pragma warn -rch #pragma warn -use #include #include #define YY_USE_CONST #define YY_USE_PROTOS #endif #ifdef YY_USE_CONST #define yyconst const #else #define yyconst #endif #ifdef YY_USE_PROTOS #define YY_PROTO(proto) proto #else #define YY_PROTO(proto) () #endif /* Returned upon end-of-file. */ #define YY_NULL 0 /* Promotes a possibly negative, possibly signed char to an unsigned * integer for use as an array index. If the signed char is negative, * we want to instead treat it as an 8-bit unsigned char, hence the * double cast. */ #define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) /* 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 * /* Translate the current start state into a value that can be later handed * to BEGIN to return to the state. The YYSTATE alias is for lex * compatibility. */ #define YY_START ((yy_start - 1) / 2) #define YYSTATE YY_START /* 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 yyrestart( yyin ) #define YY_END_OF_BUFFER_CHAR 0 /* Size of default input buffer. */ #define YY_BUF_SIZE 16384 typedef struct yy_buffer_state *YY_BUFFER_STATE; extern int yyleng; extern FILE *yyin, *yyout; #define EOB_ACT_CONTINUE_SCAN 0 #define EOB_ACT_END_OF_FILE 1 #define EOB_ACT_LAST_MATCH 2 /* The funky do-while in the following #define is used to turn the definition * int a single C statement (which needs a semi-colon terminator). This * avoids problems with code like: * * if ( condition_holds ) * yyless( 5 ); * else * do_something_else(); * * 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 yyless() call. */ /* 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_RESTORE_YY_MORE_OFFSET \ yy_c_buf_p = yy_cp = yy_bp + n - YY_MORE_ADJ; \ YY_DO_BEFORE_ACTION; /* set up yytext again */ \ } \ while ( 0 ) #define unput(c) yyunput( c, yytext_ptr ) /* The following is because we cannot portably get our hands on size_t * (without autoconf's help, which isn't available because we want * flex-generated scanners to compile on their own). */ typedef unsigned int yy_size_t; struct yy_buffer_state { FILE *yy_input_file; char *yy_ch_buf; /* input buffer */ char *yy_buf_pos; /* current position in input buffer */ /* Size of input buffer in bytes, not including room for EOB * characters. */ yy_size_t yy_buf_size; /* Number of characters read into yy_ch_buf, not including EOB * characters. */ int yy_n_chars; /* Whether we "own" the buffer - i.e., we know we created it, * and can realloc() it to grow it, and should free() it to * delete it. */ int yy_is_our_buffer; /* Whether this is an "interactive" input source; if so, and * if we're using stdio for input, then we want to use getc() * instead of fread(), to make sure we stop fetching input after * each newline. */ int yy_is_interactive; /* Whether we're considered to be at the beginning of a line. * If so, '^' rules will be active on the next match, otherwise * not. */ int yy_at_bol; /* Whether to try to fill the input buffer when we reach the * end of it. */ int yy_fill_buffer; int yy_buffer_status; #define YY_BUFFER_NEW 0 #define YY_BUFFER_NORMAL 1 /* When an EOF's been seen but there's still some text to process * then we mark the buffer as YY_EOF_PENDING, to indicate that we * shouldn't try reading from the input source any more. We might * still have a bunch of tokens to match, though, because of * possible backing-up. * * When we actually see the EOF, we change the status to "new" * (via yyrestart()), so that the user can continue scanning by * just pointing yyin at a new input file. */ #define YY_BUFFER_EOF_PENDING 2 }; static YY_BUFFER_STATE yy_current_buffer = 0; /* 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 char yy_hold_char; static int yy_n_chars; /* number of characters read into yy_ch_buf */ int yyleng; /* Points to current character in buffer. */ static char *yy_c_buf_p = (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; 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 )); void yy_flush_buffer YY_PROTO(( YY_BUFFER_STATE b )); #define YY_FLUSH_BUFFER yy_flush_buffer( yy_current_buffer ) YY_BUFFER_STATE yy_scan_buffer YY_PROTO(( char *base, yy_size_t size )); YY_BUFFER_STATE yy_scan_string YY_PROTO(( yyconst char *yy_str )); YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len )); static void *yy_flex_alloc YY_PROTO(( yy_size_t )); static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t )); static void yy_flex_free YY_PROTO(( void * )); #define yy_new_buffer yy_create_buffer #define yy_set_interactive(is_interactive) \ { \ if ( ! yy_current_buffer ) \ yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ yy_current_buffer->yy_is_interactive = is_interactive; \ } #define yy_set_bol(at_bol) \ { \ if ( ! yy_current_buffer ) \ yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); \ yy_current_buffer->yy_at_bol = at_bol; \ } #define YY_AT_BOL() (yy_current_buffer->yy_at_bol) typedef unsigned char YY_CHAR; FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; typedef int yy_state_type; extern char *yytext; #define yytext_ptr yytext 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 yy_fatal_error YY_PROTO(( yyconst char msg[] )); /* Done after the current pattern has been matched and before the * corresponding action - sets up yytext. */ #define YY_DO_BEFORE_ACTION \ yytext_ptr = yy_bp; \ yyleng = (int) (yy_cp - yy_bp); \ yy_hold_char = *yy_cp; \ *yy_cp = '\0'; \ yy_c_buf_p = yy_cp; #define YY_NUM_RULES 80 #define YY_END_OF_BUFFER 81 static yyconst short int yy_accept[217] = { 0, 0, 0, 0, 0, 0, 0, 81, 79, 1, 78, 77, 10, 2, 79, 74, 79, 79, 71, 70, 69, 79, 72, 8, 79, 66, 63, 64, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 21, 12, 11, 80, 4, 5, 4, 1, 2, 9, 31, 31, 3, 0, 0, 8, 57, 67, 68, 65, 76, 76, 76, 76, 76, 76, 76, 76, 37, 76, 76, 76, 41, 76, 76, 76, 43, 61, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 21, 20, 13, 14, 18, 19, 15, 17, 16, 6, 30, 0, 30, 0, 0, 0, 0, 0, 0, 0, 58, 0, 59, 76, 76, 76, 76, 76, 73, 76, 39, 76, 76, 75, 60, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 54, 76, 76, 62, 13, 14, 29, 22, 0, 0, 23, 27, 28, 24, 26, 25, 0, 76, 76, 76, 76, 76, 38, 76, 42, 76, 76, 76, 76, 76, 76, 76, 51, 52, 76, 76, 56, 13, 22, 0, 23, 0, 32, 33, 34, 35, 76, 76, 76, 76, 76, 76, 76, 76, 76, 53, 55, 0, 76, 76, 76, 45, 46, 76, 48, 49, 50, 7, 36, 76, 76, 47, 40, 76, 44, 0 } ; static yyconst int yy_ec[256] = { 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 5, 6, 7, 8, 1, 9, 10, 11, 12, 13, 1, 14, 15, 16, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 19, 1, 20, 21, 22, 1, 1, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 1, 25, 1, 1, 26, 1, 27, 28, 29, 30, 31, 32, 33, 34, 35, 24, 36, 37, 38, 39, 40, 41, 24, 42, 43, 44, 45, 46, 47, 48, 49, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 yyconst int yy_meta[50] = { 0, 1, 1, 2, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 4, 1, 1, 1, 1, 4, 5, 3, 5, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 } ; static yyconst short int yy_base[226] = { 0, 0, 0, 47, 48, 51, 52, 277, 278, 274, 278, 278, 278, 0, 0, 278, 250, 262, 278, 278, 278, 258, 278, 41, 251, 39, 278, 250, 0, 23, 26, 230, 35, 30, 224, 39, 228, 227, 42, 224, 234, 47, 43, 225, 236, 45, 222, 0, 278, 278, 68, 278, 278, 250, 258, 0, 0, 250, 104, 278, 243, 64, 72, 278, 278, 278, 278, 0, 227, 214, 222, 223, 214, 220, 205, 0, 207, 219, 209, 0, 216, 216, 201, 0, 0, 204, 62, 201, 205, 210, 199, 195, 196, 202, 192, 193, 0, 278, 76, 80, 278, 278, 278, 278, 278, 278, 278, 225, 224, 99, 102, 223, 222, 221, 220, 219, 278, 84, 0, 200, 191, 198, 181, 196, 0, 191, 0, 192, 182, 0, 0, 190, 178, 186, 172, 170, 183, 182, 173, 180, 175, 0, 172, 174, 0, 97, 106, 278, 278, 109, 116, 278, 278, 278, 278, 278, 278, 111, 158, 167, 169, 160, 158, 0, 158, 0, 170, 158, 172, 171, 155, 165, 166, 0, 0, 157, 162, 0, 113, 278, 132, 278, 120, 0, 0, 0, 0, 155, 156, 160, 159, 144, 142, 140, 136, 130, 0, 0, 122, 123, 122, 102, 0, 0, 98, 0, 0, 0, 127, 0, 70, 62, 0, 0, 64, 0, 278, 150, 155, 160, 84, 165, 167, 172, 177, 182 } ; static yyconst short int yy_def[226] = { 0, 216, 1, 217, 217, 218, 218, 216, 216, 216, 216, 216, 216, 219, 220, 216, 221, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 223, 216, 216, 224, 216, 216, 216, 216, 219, 220, 216, 225, 216, 216, 216, 216, 216, 216, 216, 216, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 223, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 216, 216, 216, 216, 216, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 222, 216, 222, 222, 222, 222, 222, 222, 222, 222, 222, 216, 222, 222, 222, 222, 222, 222, 222, 0, 216, 216, 216, 216, 216, 216, 216, 216, 216 } ; static yyconst short int yy_nxt[328] = { 0, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 8, 18, 19, 20, 21, 22, 23, 23, 24, 25, 26, 27, 28, 28, 8, 8, 29, 30, 31, 32, 33, 34, 28, 28, 35, 28, 28, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 28, 48, 48, 49, 49, 52, 52, 61, 70, 62, 62, 64, 65, 68, 53, 53, 69, 73, 76, 71, 77, 74, 79, 50, 50, 83, 75, 87, 89, 88, 93, 94, 117, 117, 80, 84, 98, 99, 61, 56, 62, 62, 132, 90, 145, 146, 215, 100, 146, 146, 157, 101, 117, 117, 133, 214, 134, 135, 102, 148, 213, 103, 151, 104, 108, 178, 146, 149, 150, 179, 150, 150, 109, 110, 146, 146, 181, 180, 150, 182, 182, 146, 146, 111, 150, 150, 198, 112, 182, 182, 208, 208, 179, 212, 113, 208, 208, 114, 211, 115, 150, 150, 47, 47, 47, 47, 47, 51, 51, 51, 51, 51, 55, 210, 55, 55, 55, 57, 209, 57, 57, 57, 67, 67, 96, 207, 206, 96, 96, 97, 205, 97, 97, 97, 107, 204, 107, 107, 107, 203, 202, 201, 200, 199, 197, 196, 195, 194, 193, 192, 191, 190, 189, 188, 187, 186, 185, 184, 183, 177, 176, 175, 174, 173, 172, 171, 170, 169, 168, 167, 166, 165, 164, 163, 162, 161, 160, 159, 158, 156, 155, 154, 153, 152, 147, 147, 144, 143, 142, 141, 140, 139, 138, 137, 136, 131, 130, 129, 128, 127, 126, 125, 124, 123, 122, 121, 120, 119, 118, 116, 106, 54, 105, 95, 92, 91, 86, 85, 82, 81, 78, 72, 66, 63, 60, 59, 58, 54, 216, 7, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216 } ; static yyconst short int yy_chk[328] = { 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, 3, 4, 3, 4, 5, 6, 23, 30, 23, 23, 25, 25, 29, 5, 6, 29, 32, 33, 30, 33, 32, 35, 3, 4, 38, 32, 41, 42, 41, 45, 45, 61, 61, 35, 38, 50, 50, 62, 220, 62, 62, 86, 42, 98, 98, 214, 50, 99, 99, 117, 50, 117, 117, 86, 211, 86, 86, 50, 109, 210, 50, 110, 50, 58, 145, 145, 109, 109, 149, 110, 110, 58, 58, 146, 146, 150, 149, 149, 157, 157, 178, 178, 58, 150, 150, 182, 58, 182, 182, 198, 198, 180, 204, 58, 208, 208, 58, 201, 58, 180, 180, 217, 217, 217, 217, 217, 218, 218, 218, 218, 218, 219, 200, 219, 219, 219, 221, 199, 221, 221, 221, 222, 222, 223, 195, 194, 223, 223, 224, 193, 224, 224, 224, 225, 192, 225, 225, 225, 191, 190, 189, 188, 187, 176, 175, 172, 171, 170, 169, 168, 167, 166, 164, 162, 161, 160, 159, 158, 143, 142, 140, 139, 138, 137, 136, 135, 134, 133, 132, 131, 128, 127, 125, 123, 122, 121, 120, 119, 115, 114, 113, 112, 111, 108, 107, 95, 94, 93, 92, 91, 90, 89, 88, 87, 85, 82, 81, 80, 78, 77, 76, 74, 73, 72, 71, 70, 69, 68, 60, 57, 54, 53, 46, 44, 43, 40, 39, 37, 36, 34, 31, 27, 24, 21, 17, 16, 9, 7, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216, 216 } ; static yy_state_type yy_last_accepting_state; static 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 #define YY_RESTORE_YY_MORE_OFFSET char *yytext; #line 1 "mgllex.l" #define INITIAL 0 #line 2 "mgllex.l" /* * mgllex.l - Lexer for Bootrom Menu Generation Language * * Copyright (C) 1997-2003 Gero Kuhlmann * * 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 * 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; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * $Id: mgllex.l,v 1.4 2003/01/25 23:29:44 gkminix Exp $ */ #include "mknbi.h" #include "mgl.h" #include "gencode.h" #include "y.tab.h" /* ******************************************************************** * * Definition of builtin data types. We need this here for the definition * of internal functions. */ /* No type - used to catch errors in type definitions */ struct typesdef none_type = { EXPR_NONE, 0, { { 0, 0, -1 } }, NULL }; /* Integer type */ struct typesdef int_type = { EXPR_NUM, 2, { { -MAX_INT, MAX_INT, -1 } }, &none_type }; /* String type */ struct typesdef string_type = { EXPR_STRING, MAX_STR_LEN, { { 0, 0, -1 } }, &int_type }; /* Type for string index */ struct typesdef strindex_type = { EXPR_NUM, 2, { { 0, 255, -1 } }, & string_type }; /* Character type */ struct typesdef char_type = { EXPR_CHAR, 1, { { 0, MAX_CHAR, -1 } }, &strindex_type }; /* Boolean type */ struct typesdef bool_type = { EXPR_BOOL, 1, { { 0, 1, -1 } }, &char_type }; /* Table of names for predefined types */ struct { char *name; struct typesdef *t; } predeftypes[] = { { "integer", &int_type }, { "string", &string_type }, { "char", &char_type }, { "boolean", &bool_type }, { "logical", &bool_type }, { NULL, NULL } }; /* ******************************************************************** * * List of internally defined constants */ struct { char *name; char *strval; int numval; struct typesdef *t; } predefconsts[] = { { "maxint", NULL, MAX_INT, &int_type }, { "true", NULL, 1, &bool_type }, { "false", NULL, 0, &bool_type }, { "BOOTP_HOSTNAME", NULL, 12, &int_type }, { "BOOTP_DOMAIN", NULL, 15, &int_type }, { "BOOTP_ROOTPATH", NULL, 17, &int_type }, { NULL, NULL, 0, NULL } }; /* ******************************************************************** * * List of internally defined variables. */ struct { char *name; long addr; struct typesdef *t; } predefvars[] = { { "servername", ADDR_SERVERNAME, &string_type }, { "hostname", ADDR_HOSTNAME, &string_type }, { NULL, 0, NULL } }; /* ******************************************************************** * * Definition of internal functions. To add a new internal function, * simply assign a new CMD_* value to pass to the runtime module, and * add a new entry here. You might optionally add a collapsing function * into mglparse.y for constant arguments. */ struct { char *name; struct funcdef f; } functab[] = { /* This is a general scalar operation - int types are just dummies */ { "pred", { 0, 0, CMD_PRED, 1, &int_type, { &int_type }, { ATTR_NONE } } }, /* This is a general scalar operation - int types are just dummies */ { "succ", { 0, 0, CMD_SUCC, 1, &int_type, { &int_type }, { ATTR_NONE } } }, /* This is a general scalar operation - int types are just dummies */ { "ord", { 0, 0, CMD_ORD, 1, &int_type, { &int_type }, { ATTR_NONE } } }, { "odd", { 0, 0, CMD_ODD, 1, &bool_type, { &int_type }, { ATTR_NONE } } }, { "chr", { 0, 0, CMD_CHR, 1, &char_type, { &int_type }, { ATTR_NONE } } }, { "strlen", { 0, 0, CMD_STRLEN, 1, &int_type, { &string_type }, { ATTR_CONST } } }, { "strsub", { 0, 0, CMD_STRSUB, 3, &string_type, { &string_type, &int_type, &int_type }, { ATTR_CONST, ATTR_NONE, ATTR_NONE } } }, { "abs", { 0, 0, CMD_ABS, 1, &int_type, { &int_type }, { ATTR_NONE } } }, { "sqr", { 0, 0, CMD_SQR, 1, &int_type, { &int_type }, { ATTR_NONE } } }, { "cls", { 0, 0, CMD_CLS, 0, NULL, { NULL }, { ATTR_NONE } } }, { NULL, { 0, 0, CMD_NONE, 0, NULL, { NULL }, { ATTR_NONE } } } }; /* ******************************************************************** * * Some symbols are used internally by the lexer, and just return a * token to the parser. This way, we can redefine the symbols in the * user program, and still use them as tokens in the parser. */ struct { char *name; int token; } specialtab[] = { { "at", AT }, { "from", FROM }, { "gateway", GATEWAY }, { "get", GET }, { "gotoxy", GOTOXY }, { "load", LOAD }, { "menu", MENU }, { "print", PRINT }, { "timeout", TIMEOUT }, { NULL, 0 } }; /* ******************************************************************** * * Global variables */ char *curfile; /* Name of current input file */ /* ******************************************************************** * * String buffer for C style strings */ static char string_buf[MAX_STR_LEN + 1]; /* string buffer */ static char *string_pos; /* current string position */ static int string_flag; /* flag if string too long */ /* ******************************************************************** * * Routine to add a character to the constant string */ static void add_string(c) char c; { if (string_pos >= &string_buf[MAX_STR_LEN]) { if (!string_flag) { warning("string too long, truncating"); string_flag++; } } else *string_pos++ = c; } /* ******************************************************************** * * Define some generally useful regular expressions */ /* ******************************************************************** * * Always use a pointer for yytext */ /* ******************************************************************** * * Define an exclusive start state for scanning C style strings */ #define Cstring 1 #define Comment 2 #line 750 "lex.yy.c" /* Macros after this point can all be overridden by user definitions in * section 1. */ #ifndef YY_SKIP_YYWRAP #ifdef __cplusplus extern "C" int yywrap YY_PROTO(( void )); #else extern int yywrap YY_PROTO(( void )); #endif #endif #ifndef YY_NO_UNPUT static void yyunput YY_PROTO(( int c, char *buf_ptr )); #endif #ifndef yytext_ptr static void yy_flex_strncpy YY_PROTO(( char *, yyconst char *, int )); #endif #ifdef YY_NEED_STRLEN static int yy_flex_strlen YY_PROTO(( yyconst char * )); #endif #ifndef YY_NO_INPUT #ifdef __cplusplus static int yyinput YY_PROTO(( void )); #else static int input YY_PROTO(( void )); #endif #endif #if YY_STACK_USED static int yy_start_stack_ptr = 0; static int yy_start_stack_depth = 0; static int *yy_start_stack = 0; #ifndef YY_NO_PUSH_STATE static void yy_push_state YY_PROTO(( int new_state )); #endif #ifndef YY_NO_POP_STATE static void yy_pop_state YY_PROTO(( void )); #endif #ifndef YY_NO_TOP_STATE static int yy_top_state YY_PROTO(( void )); #endif #else #define YY_NO_PUSH_STATE 1 #define YY_NO_POP_STATE 1 #define YY_NO_TOP_STATE 1 #endif #ifdef YY_MALLOC_DECL YY_MALLOC_DECL #else #if __STDC__ #ifndef __cplusplus #include #endif #else /* Just try to get by without declaring the routines. This will fail * miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int) * or sizeof(void*) != sizeof(int). */ #endif #endif /* Amount of stuff to slurp up with each read. */ #ifndef YY_READ_BUF_SIZE #define YY_READ_BUF_SIZE 8192 #endif /* Copy whatever the last rule matched to the standard output. */ #ifndef ECHO /* This used to be an fputs(), but since the string might contain NUL's, * we now use fwrite(). */ #define ECHO (void) fwrite( yytext, yyleng, 1, yyout ) #endif /* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, * is returned in "result". */ #ifndef YY_INPUT #define YY_INPUT(buf,result,max_size) \ if ( yy_current_buffer->yy_is_interactive ) \ { \ int c = '*', n; \ for ( n = 0; n < max_size && \ (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ buf[n] = (char) c; \ if ( c == '\n' ) \ buf[n++] = (char) c; \ if ( c == EOF && ferror( yyin ) ) \ YY_FATAL_ERROR( "input in flex scanner failed" ); \ result = n; \ } \ else if ( ((result = fread( buf, 1, max_size, yyin )) == 0) \ && ferror( yyin ) ) \ YY_FATAL_ERROR( "input in flex scanner failed" ); #endif /* 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. */ #ifndef yyterminate #define yyterminate() return YY_NULL #endif /* Number of entries by which start-condition stack grows. */ #ifndef YY_START_STACK_INCR #define YY_START_STACK_INCR 25 #endif /* Report a fatal error. */ #ifndef YY_FATAL_ERROR #define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) #endif /* Default declaration of generated scanner - a define so the user can * easily add parameters. */ #ifndef YY_DECL #define YY_DECL int yylex YY_PROTO(( void )) #endif /* Code executed at the beginning of each rule, after yytext and yyleng * have been set up. */ #ifndef YY_USER_ACTION #define YY_USER_ACTION #endif /* Code executed at the end of each rule. */ #ifndef YY_BREAK #define YY_BREAK break; #endif #define YY_RULE_SETUP \ YY_USER_ACTION YY_DECL { register yy_state_type yy_current_state; register char *yy_cp, *yy_bp; register int yy_act; #line 259 "mgllex.l" /* ******************************************************************** * * Skip all whitespace and comments */ #line 911 "lex.yy.c" if ( yy_init ) { yy_init = 0; #ifdef YY_USER_INIT YY_USER_INIT; #endif if ( ! yy_start ) yy_start = 1; /* first start state */ if ( ! yyin ) yyin = stdin; if ( ! yyout ) yyout = stdout; if ( ! yy_current_buffer ) yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); yy_load_buffer_state(); } 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_SC_TO_UI(*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 = (int) yy_def[yy_current_state]; if ( yy_current_state >= 217 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; ++yy_cp; } while ( yy_base[yy_current_state] != 278 ); yy_find_action: yy_act = yy_accept[yy_current_state]; if ( yy_act == 0 ) { /* have to back up */ yy_cp = yy_last_accepting_cpos; yy_current_state = yy_last_accepting_state; yy_act = yy_accept[yy_current_state]; } YY_DO_BEFORE_ACTION; do_action: /* This label is used only to access EOF actions. */ switch ( yy_act ) { /* beginning of action switch */ case 0: /* must back up */ /* 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: YY_RULE_SETUP #line 268 "mgllex.l" ; YY_BREAK case 2: YY_RULE_SETUP #line 269 "mgllex.l" ; YY_BREAK case 3: YY_RULE_SETUP #line 271 "mgllex.l" { BEGIN Comment; } /* Switch to comment mode */ YY_BREAK case 4: YY_RULE_SETUP #line 272 "mgllex.l" ; /* Throw away any comment text */ YY_BREAK case 5: YY_RULE_SETUP #line 273 "mgllex.l" { lineno++; } /* We still have to count line numbers */ YY_BREAK case 6: YY_RULE_SETUP #line 274 "mgllex.l" { BEGIN INITIAL; } /* Return to regular mode */ YY_BREAK /* ******************************************************************** * * Parse an IP number */ case 7: YY_RULE_SETUP #line 283 "mgllex.l" { #ifdef HAVE_INET static struct in_addr addr; if ((unsigned long)(addr.s_addr = inet_addr(yytext)) == (unsigned long)-1) { warning("invalid IP address, assuming 0.0.0.0"); addr.s_addr = INADDR_ANY; } #else static char addr[INADDR_SIZE]; warning("no IP address support available, assuming 0.0.0.0"); memset(addr, 0, INADDR_SIZE); #endif yylval.inaddr = (char *)&addr; return(INADDR); } YY_BREAK /* ******************************************************************** * * Parse an integer number */ case 8: YY_RULE_SETUP #line 309 "mgllex.l" { /* Decimal number */ char *cp; unsigned long result = 0; for (cp = yytext; *cp; cp++) { result = result * 10 + *cp - '0'; if (result > MAX_INT) { warning("integer number too large, assuming maximum"); result = MAX_INT; break; } } yylval.intarg = result; return(NUM); } YY_BREAK case 9: YY_RULE_SETUP #line 327 "mgllex.l" { /* Hex number */ char *cp; unsigned long result = 0; for (cp = yytext; *cp; cp++) { if (*cp >= '0' && *cp <= '9') result = result * 16 + *cp - '0'; else if (*cp >= 'a' && *cp <= 'f') result = result * 16 + *cp + 10 - 'a'; else if (*cp >= 'A' && *cp <= 'F') result = result * 16 + *cp + 10 - 'F'; if (result > MAX_INT) { warning("integer number too large, assuming maximum"); result = MAX_INT; break; } } yylval.intarg = result; return(NUM); } YY_BREAK /* ******************************************************************** * * Parse a C type string */ case 10: YY_RULE_SETUP #line 357 "mgllex.l" { string_flag = 0; string_pos = string_buf; BEGIN Cstring; } YY_BREAK case 11: YY_RULE_SETUP #line 363 "mgllex.l" { /* All done at closing quote */ BEGIN INITIAL; *string_pos = '\0'; yylval.string = string_buf; return(QSTRING); } YY_BREAK case 12: YY_RULE_SETUP #line 371 "mgllex.l" { /* Unterminated string constant */ BEGIN INITIAL; warning("unterminated string constant"); *string_pos = '\0'; yylval.string = string_buf; return(QSTRING); } YY_BREAK case 13: YY_RULE_SETUP #line 380 "mgllex.l" { /* Octal escape sequence */ int result; if (sscanf(yytext + 1, "%o", &result) != 1) { warning("invalid octal number in string constant, " "assuming \\377"); result = '\377'; } if (result > 0xff) { warning("octal number in string constant too large, " "assuming \\377"); result = '\377'; } add_string(result); } YY_BREAK case 14: YY_RULE_SETUP #line 397 "mgllex.l" { /* Bad escape sequence */ warning("bad escape sequence, skipping"); } YY_BREAK case 15: YY_RULE_SETUP #line 402 "mgllex.l" { add_string('\n'); } YY_BREAK case 16: YY_RULE_SETUP #line 403 "mgllex.l" { add_string('\t'); } YY_BREAK case 17: YY_RULE_SETUP #line 404 "mgllex.l" { add_string('\r'); } YY_BREAK case 18: YY_RULE_SETUP #line 405 "mgllex.l" { add_string('\b'); } YY_BREAK case 19: YY_RULE_SETUP #line 406 "mgllex.l" { add_string('\f'); } YY_BREAK case 20: YY_RULE_SETUP #line 407 "mgllex.l" { add_string(yytext[1]); } YY_BREAK case 21: YY_RULE_SETUP #line 409 "mgllex.l" { char *yptr = yytext; while (*yptr) add_string(*yptr++); } YY_BREAK /* ******************************************************************** * * Parse a C type character value */ case 22: YY_RULE_SETUP #line 423 "mgllex.l" { /* Octal escape sequence */ int result; yytext[strlen(yytext) - 1] = '\0'; if (sscanf(yytext + 2, "%o", &result) != 1) { warning("invalid octal number in character constant, " "assuming \\377"); result = '\377'; } if (result > 0xff) { warning("octal number in character constant too large, " "assuming \\377"); result = '\377'; } yylval.chrarg = result & 0xff; return(CHR); } YY_BREAK case 23: YY_RULE_SETUP #line 442 "mgllex.l" { /* Bad escape sequence */ warning("bad escape sequence, assuming \\377"); yylval.chrarg = 0xff; return(CHR); } YY_BREAK case 24: YY_RULE_SETUP #line 449 "mgllex.l" { yylval.chrarg = '\n'; return(CHR); } YY_BREAK case 25: YY_RULE_SETUP #line 450 "mgllex.l" { yylval.chrarg = '\t'; return(CHR); } YY_BREAK case 26: YY_RULE_SETUP #line 451 "mgllex.l" { yylval.chrarg = '\r'; return(CHR); } YY_BREAK case 27: YY_RULE_SETUP #line 452 "mgllex.l" { yylval.chrarg = '\b'; return(CHR); } YY_BREAK case 28: YY_RULE_SETUP #line 453 "mgllex.l" { yylval.chrarg = '\f'; return(CHR); } YY_BREAK case 29: YY_RULE_SETUP #line 454 "mgllex.l" { yylval.chrarg = yytext[2]; return(CHR); } YY_BREAK case 30: YY_RULE_SETUP #line 456 "mgllex.l" { yylval.chrarg = yytext[1]; return(CHR); } YY_BREAK case 31: YY_RULE_SETUP #line 461 "mgllex.l" { warning("missing closing quote in character constant"); yylval.chrarg = yytext[1]; return(CHR); } YY_BREAK /* ******************************************************************** * * Rules to parse reserved names */ case 32: YY_RULE_SETUP #line 474 "mgllex.l" { return(ARRAY); } YY_BREAK case 33: YY_RULE_SETUP #line 475 "mgllex.l" { return(CBEGIN); } YY_BREAK case 34: YY_RULE_SETUP #line 476 "mgllex.l" { return(BREAK); } YY_BREAK case 35: YY_RULE_SETUP #line 477 "mgllex.l" { return(CONST); } YY_BREAK case 36: YY_RULE_SETUP #line 478 "mgllex.l" { return(DEFAULT); } YY_BREAK case 37: YY_RULE_SETUP #line 479 "mgllex.l" { return(DO); } YY_BREAK case 38: YY_RULE_SETUP #line 480 "mgllex.l" { return(ELSE); } YY_BREAK case 39: YY_RULE_SETUP #line 481 "mgllex.l" { return(END); } YY_BREAK case 40: YY_RULE_SETUP #line 482 "mgllex.l" { return(FUNCTION); } YY_BREAK case 41: YY_RULE_SETUP #line 483 "mgllex.l" { return(IF); } YY_BREAK case 42: YY_RULE_SETUP #line 484 "mgllex.l" { return(ITEM); } YY_BREAK case 43: YY_RULE_SETUP #line 485 "mgllex.l" { return(OF); } YY_BREAK case 44: YY_RULE_SETUP #line 486 "mgllex.l" { return(PROCEDURE); } YY_BREAK case 45: YY_RULE_SETUP #line 487 "mgllex.l" { return(RECORD); } YY_BREAK case 46: YY_RULE_SETUP #line 488 "mgllex.l" { return(REPEAT); } YY_BREAK case 47: YY_RULE_SETUP #line 489 "mgllex.l" { return(RESTART); } YY_BREAK case 48: YY_RULE_SETUP #line 490 "mgllex.l" { return(RETURN); } YY_BREAK case 49: YY_RULE_SETUP #line 491 "mgllex.l" { return(SCREEN); } YY_BREAK case 50: YY_RULE_SETUP #line 492 "mgllex.l" { return(SELECT); } YY_BREAK case 51: YY_RULE_SETUP #line 493 "mgllex.l" { return(THEN); } YY_BREAK case 52: YY_RULE_SETUP #line 494 "mgllex.l" { return(TYPE); } YY_BREAK case 53: YY_RULE_SETUP #line 495 "mgllex.l" { return(UNTIL); } YY_BREAK case 54: YY_RULE_SETUP #line 496 "mgllex.l" { return(VAR); } YY_BREAK case 55: YY_RULE_SETUP #line 497 "mgllex.l" { return(WHILE); } YY_BREAK case 56: YY_RULE_SETUP #line 498 "mgllex.l" { return(WITH); } YY_BREAK case 57: YY_RULE_SETUP #line 500 "mgllex.l" { return(ASSIGN); } YY_BREAK case 58: YY_RULE_SETUP #line 501 "mgllex.l" { return(DOTS); } YY_BREAK /* ******************************************************************** * * Logical operations */ case 59: YY_RULE_SETUP #line 510 "mgllex.l" { yylval.op = CMD_AND; return(ANDOP); } YY_BREAK case 60: YY_RULE_SETUP #line 511 "mgllex.l" { yylval.op = CMD_NOT; return(NOTOP); } YY_BREAK case 61: YY_RULE_SETUP #line 512 "mgllex.l" { yylval.op = CMD_OR; return(OROP); } YY_BREAK case 62: YY_RULE_SETUP #line 513 "mgllex.l" { yylval.op = CMD_XOR; return(XOROP); } YY_BREAK /* ******************************************************************** * * Comparison rules */ case 63: YY_RULE_SETUP #line 522 "mgllex.l" { yylval.op = CMD_EQ; return(COMPARISON); } YY_BREAK case 64: YY_RULE_SETUP #line 523 "mgllex.l" { yylval.op = CMD_GT; return(COMPARISON); } YY_BREAK case 65: YY_RULE_SETUP #line 524 "mgllex.l" { yylval.op = CMD_GE; return(COMPARISON); } YY_BREAK case 66: YY_RULE_SETUP #line 525 "mgllex.l" { yylval.op = CMD_LT; return(COMPARISON); } YY_BREAK case 67: YY_RULE_SETUP #line 526 "mgllex.l" { yylval.op = CMD_LE; return(COMPARISON); } YY_BREAK case 68: YY_RULE_SETUP #line 527 "mgllex.l" { yylval.op = CMD_NE; return(COMPARISON); } YY_BREAK /* ******************************************************************** * * Arithmetic operations */ case 69: YY_RULE_SETUP #line 536 "mgllex.l" { yylval.op = '-'; return(ADDOP); } YY_BREAK case 70: YY_RULE_SETUP #line 537 "mgllex.l" { yylval.op = '+'; return(ADDOP); } YY_BREAK case 71: YY_RULE_SETUP #line 538 "mgllex.l" { yylval.op = '*'; return(MULOP); } YY_BREAK case 72: YY_RULE_SETUP #line 539 "mgllex.l" { yylval.op = '/'; return(MULOP); } YY_BREAK case 73: YY_RULE_SETUP #line 540 "mgllex.l" { yylval.op = '/'; return(MULOP); } YY_BREAK case 74: YY_RULE_SETUP #line 541 "mgllex.l" { yylval.op = '%'; return(MULOP); } YY_BREAK case 75: YY_RULE_SETUP #line 542 "mgllex.l" { yylval.op = '%'; return(MULOP); } YY_BREAK /* ******************************************************************** * * Symbol names */ case 76: YY_RULE_SETUP #line 551 "mgllex.l" { struct sym *sp; yylval.symbol = NULL; if (strlen(yytext) > MAX_ID_LEN) { warning("ID too long, truncating to 16 characters"); yytext[MAX_ID_LEN] = '\0'; } /* Search if symbol already exists */ for (sp = symtab; sp != NULL; sp = sp->next) if (!strcmp(sp->name, yytext)) break; /* If it's a special symbol, return it's token */ if (isspecialsym(sp)) return(sp->def.s.token); /* If symbol doesn't exist, create it. */ if (sp == NULL) { sp = (struct sym *)nbmalloc(sizeof(struct sym)); sp->type = nosym; sp->level = curlevel; copystr(&(sp->name), yytext); sp->next = symtab; symtab = sp; } /* Return the symbol to the parser */ yylval.symbol = sp; return(ID); } YY_BREAK /* ******************************************************************** * * Misc. rules: count lines and ignore \r, return all other * characters as is to the parser. */ case 77: YY_RULE_SETUP #line 592 "mgllex.l" ; YY_BREAK case 78: YY_RULE_SETUP #line 593 "mgllex.l" { lineno++; } YY_BREAK case 79: YY_RULE_SETUP #line 594 "mgllex.l" { return(yytext[0]); } YY_BREAK case 80: YY_RULE_SETUP #line 596 "mgllex.l" ECHO; YY_BREAK #line 1599 "lex.yy.c" case YY_STATE_EOF(INITIAL): case YY_STATE_EOF(Cstring): case YY_STATE_EOF(Comment): yyterminate(); case YY_END_OF_BUFFER: { /* Amount of text matched not including the EOB char. */ int yy_amount_of_matched_text = (int) (yy_cp - yytext_ptr) - 1; /* Undo the effects of YY_DO_BEFORE_ACTION. */ *yy_cp = yy_hold_char; YY_RESTORE_YY_MORE_OFFSET if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_NEW ) { /* We're scanning a new file or input source. It's * possible that this happened because the user * just pointed yyin at a new source and called * yylex(). If so, then we have to assure * consistency between yy_current_buffer and our * globals. Here is the right place to do so, because * this is the first action (other than possibly a * back-up) that will match for the new input source. */ yy_n_chars = yy_current_buffer->yy_n_chars; yy_current_buffer->yy_input_file = yyin; yy_current_buffer->yy_buffer_status = YY_BUFFER_NORMAL; } /* 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 input(). */ 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_ptr + 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_ptr + 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_c_buf_p; 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_ptr + YY_MORE_ADJ; yy_act = YY_STATE_EOF(YY_START); 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_ptr + yy_amount_of_matched_text; yy_current_state = yy_get_previous_state(); yy_cp = yy_c_buf_p; yy_bp = yytext_ptr + YY_MORE_ADJ; goto yy_match; case EOB_ACT_LAST_MATCH: yy_c_buf_p = &yy_current_buffer->yy_ch_buf[yy_n_chars]; yy_current_state = yy_get_previous_state(); yy_cp = yy_c_buf_p; yy_bp = yytext_ptr + YY_MORE_ADJ; goto yy_find_action; } break; } default: YY_FATAL_ERROR( "fatal flex scanner internal error--no action found" ); } /* end of action switch */ } /* end of scanning one token */ } /* end of yylex */ /* yy_get_next_buffer - try to read in a new buffer * * Returns a code representing an action: * EOB_ACT_LAST_MATCH - * EOB_ACT_CONTINUE_SCAN - continue scanning from current position * EOB_ACT_END_OF_FILE - end of file */ static int yy_get_next_buffer() { register char *dest = yy_current_buffer->yy_ch_buf; register char *source = yytext_ptr; register int number_to_move, i; int ret_val; if ( yy_c_buf_p > &yy_current_buffer->yy_ch_buf[yy_n_chars + 1] ) YY_FATAL_ERROR( "fatal flex scanner internal error--end of buffer missed" ); if ( yy_current_buffer->yy_fill_buffer == 0 ) { /* Don't try to fill the buffer, so this is an EOF. */ if ( yy_c_buf_p - yytext_ptr - YY_MORE_ADJ == 1 ) { /* We matched a single character, the EOB, so * treat this as a final EOF. */ return EOB_ACT_END_OF_FILE; } else { /* We matched some text prior to the EOB, first * process it. */ return EOB_ACT_LAST_MATCH; } } /* Try to read more data. */ /* First move last chars to start of buffer. */ number_to_move = (int) (yy_c_buf_p - yytext_ptr) - 1; for ( i = 0; i < number_to_move; ++i ) *(dest++) = *(source++); if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_EOF_PENDING ) /* don't do the read, it's not guaranteed to return an EOF, * just force an EOF */ yy_current_buffer->yy_n_chars = yy_n_chars = 0; else { int num_to_read = yy_current_buffer->yy_buf_size - number_to_move - 1; while ( num_to_read <= 0 ) { /* Not enough room in the buffer - grow it. */ #ifdef YY_USES_REJECT YY_FATAL_ERROR( "input buffer overflow, can't enlarge buffer because scanner uses REJECT" ); #else /* just a shorter name for the current buffer */ YY_BUFFER_STATE b = yy_current_buffer; int yy_c_buf_p_offset = (int) (yy_c_buf_p - b->yy_ch_buf); if ( b->yy_is_our_buffer ) { int new_size = b->yy_buf_size * 2; if ( new_size <= 0 ) b->yy_buf_size += b->yy_buf_size / 8; else b->yy_buf_size *= 2; b->yy_ch_buf = (char *) /* Include room in for 2 EOB chars. */ yy_flex_realloc( (void *) b->yy_ch_buf, b->yy_buf_size + 2 ); } else /* Can't grow it, we don't own it. */ b->yy_ch_buf = 0; if ( ! b->yy_ch_buf ) YY_FATAL_ERROR( "fatal error - scanner input buffer overflow" ); yy_c_buf_p = &b->yy_ch_buf[yy_c_buf_p_offset]; num_to_read = yy_current_buffer->yy_buf_size - number_to_move - 1; #endif } if ( num_to_read > YY_READ_BUF_SIZE ) num_to_read = YY_READ_BUF_SIZE; /* Read in more data. */ YY_INPUT( (&yy_current_buffer->yy_ch_buf[number_to_move]), yy_n_chars, num_to_read ); yy_current_buffer->yy_n_chars = yy_n_chars; } if ( yy_n_chars == 0 ) { if ( number_to_move == YY_MORE_ADJ ) { ret_val = EOB_ACT_END_OF_FILE; yyrestart( yyin ); } else { ret_val = EOB_ACT_LAST_MATCH; yy_current_buffer->yy_buffer_status = YY_BUFFER_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_ptr = &yy_current_buffer->yy_ch_buf[0]; return ret_val; } /* yy_get_previous_state - get the state just before the EOB char was reached */ static yy_state_type yy_get_previous_state() { register yy_state_type yy_current_state; register char *yy_cp; yy_current_state = yy_start; for ( yy_cp = yytext_ptr + YY_MORE_ADJ; yy_cp < yy_c_buf_p; ++yy_cp ) { register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*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 = (int) yy_def[yy_current_state]; if ( yy_current_state >= 217 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) 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( yy_state_type yy_current_state ) #else static yy_state_type yy_try_NUL_trans( yy_current_state ) yy_state_type yy_current_state; #endif { register int yy_is_jam; register 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 = (int) yy_def[yy_current_state]; if ( yy_current_state >= 217 ) yy_c = yy_meta[(unsigned int) yy_c]; } yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; yy_is_jam = (yy_current_state == 216); return yy_is_jam ? 0 : yy_current_state; } #ifndef YY_NO_UNPUT #ifdef YY_USE_PROTOS static void yyunput( int c, register char *yy_bp ) #else static void yyunput( c, yy_bp ) int c; register char *yy_bp; #endif { register char *yy_cp = yy_c_buf_p; /* undo effects of setting up yytext */ *yy_cp = yy_hold_char; if ( yy_cp < yy_current_buffer->yy_ch_buf + 2 ) { /* need to shift things up to make room */ /* +2 for EOB chars. */ register int number_to_move = yy_n_chars + 2; register char *dest = &yy_current_buffer->yy_ch_buf[ yy_current_buffer->yy_buf_size + 2]; register char *source = &yy_current_buffer->yy_ch_buf[number_to_move]; while ( source > yy_current_buffer->yy_ch_buf ) *--dest = *--source; yy_cp += (int) (dest - source); yy_bp += (int) (dest - source); yy_current_buffer->yy_n_chars = 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" ); } *--yy_cp = (char) c; yytext_ptr = yy_bp; yy_hold_char = *yy_cp; yy_c_buf_p = yy_cp; } #endif /* ifndef YY_NO_UNPUT */ #ifdef __cplusplus static int yyinput() #else static int input() #endif { int c; *yy_c_buf_p = yy_hold_char; if ( *yy_c_buf_p == YY_END_OF_BUFFER_CHAR ) { /* yy_c_buf_p now points to the character we want to return. * If this occurs *before* the EOB characters, then it's a * valid NUL; if not, then we've hit the end of the buffer. */ if ( yy_c_buf_p < &yy_current_buffer->yy_ch_buf[yy_n_chars] ) /* This was really a NUL. */ *yy_c_buf_p = '\0'; else { /* need more input */ int offset = yy_c_buf_p - yytext_ptr; ++yy_c_buf_p; switch ( yy_get_next_buffer() ) { case EOB_ACT_LAST_MATCH: /* This happens because yy_g_n_b() * sees that we've accumulated a * token and flags that we need to * try matching the token before * proceeding. But for input(), * there's no matching to consider. * So convert the EOB_ACT_LAST_MATCH * to EOB_ACT_END_OF_FILE. */ /* Reset buffer status. */ yyrestart( yyin ); /* fall through */ case EOB_ACT_END_OF_FILE: { if ( yywrap() ) return EOF; if ( ! yy_did_buffer_switch_on_eof ) YY_NEW_FILE; #ifdef __cplusplus return yyinput(); #else return input(); #endif } case EOB_ACT_CONTINUE_SCAN: yy_c_buf_p = yytext_ptr + offset; break; } } } c = *(unsigned char *) yy_c_buf_p; /* cast for 8-bit char's */ *yy_c_buf_p = '\0'; /* preserve yytext */ yy_hold_char = *++yy_c_buf_p; return c; } #ifdef YY_USE_PROTOS void yyrestart( FILE *input_file ) #else void yyrestart( input_file ) FILE *input_file; #endif { if ( ! yy_current_buffer ) yy_current_buffer = yy_create_buffer( yyin, YY_BUF_SIZE ); yy_init_buffer( yy_current_buffer, input_file ); yy_load_buffer_state(); } #ifdef YY_USE_PROTOS void yy_switch_to_buffer( YY_BUFFER_STATE new_buffer ) #else void yy_switch_to_buffer( new_buffer ) YY_BUFFER_STATE new_buffer; #endif { 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_ptr = yy_c_buf_p = yy_current_buffer->yy_buf_pos; yyin = yy_current_buffer->yy_input_file; yy_hold_char = *yy_c_buf_p; } #ifdef YY_USE_PROTOS YY_BUFFER_STATE yy_create_buffer( FILE *file, int size ) #else YY_BUFFER_STATE yy_create_buffer( file, size ) FILE *file; int size; #endif { YY_BUFFER_STATE b; b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) ); if ( ! b ) YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); b->yy_buf_size = size; /* yy_ch_buf has to be 2 characters longer than the size given because * we need to put in 2 end-of-buffer characters. */ b->yy_ch_buf = (char *) yy_flex_alloc( b->yy_buf_size + 2 ); if ( ! b->yy_ch_buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); b->yy_is_our_buffer = 1; 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 ) return; if ( b == yy_current_buffer ) yy_current_buffer = (YY_BUFFER_STATE) 0; if ( b->yy_is_our_buffer ) yy_flex_free( (void *) b->yy_ch_buf ); yy_flex_free( (void *) b ); } #ifndef YY_ALWAYS_INTERACTIVE #ifndef YY_NEVER_INTERACTIVE #include #endif #endif #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 { yy_flush_buffer( b ); b->yy_input_file = file; b->yy_fill_buffer = 1; #if YY_ALWAYS_INTERACTIVE b->yy_is_interactive = 1; #else #if YY_NEVER_INTERACTIVE b->yy_is_interactive = 0; #else b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; #endif #endif } #ifdef YY_USE_PROTOS void yy_flush_buffer( YY_BUFFER_STATE b ) #else void yy_flush_buffer( b ) YY_BUFFER_STATE b; #endif { if ( ! b ) return; b->yy_n_chars = 0; /* 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[0] = YY_END_OF_BUFFER_CHAR; b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; b->yy_buf_pos = &b->yy_ch_buf[0]; b->yy_at_bol = 1; b->yy_buffer_status = YY_BUFFER_NEW; if ( b == yy_current_buffer ) yy_load_buffer_state(); } #ifndef YY_NO_SCAN_BUFFER #ifdef YY_USE_PROTOS YY_BUFFER_STATE yy_scan_buffer( char *base, yy_size_t size ) #else YY_BUFFER_STATE yy_scan_buffer( base, size ) char *base; yy_size_t size; #endif { YY_BUFFER_STATE b; if ( size < 2 || base[size-2] != YY_END_OF_BUFFER_CHAR || base[size-1] != YY_END_OF_BUFFER_CHAR ) /* They forgot to leave room for the EOB's. */ return 0; b = (YY_BUFFER_STATE) yy_flex_alloc( sizeof( struct yy_buffer_state ) ); if ( ! b ) YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ b->yy_buf_pos = b->yy_ch_buf = base; b->yy_is_our_buffer = 0; b->yy_input_file = 0; b->yy_n_chars = b->yy_buf_size; b->yy_is_interactive = 0; b->yy_at_bol = 1; b->yy_fill_buffer = 0; b->yy_buffer_status = YY_BUFFER_NEW; yy_switch_to_buffer( b ); return b; } #endif #ifndef YY_NO_SCAN_STRING #ifdef YY_USE_PROTOS YY_BUFFER_STATE yy_scan_string( yyconst char *yy_str ) #else YY_BUFFER_STATE yy_scan_string( yy_str ) yyconst char *yy_str; #endif { int len; for ( len = 0; yy_str[len]; ++len ) ; return yy_scan_bytes( yy_str, len ); } #endif #ifndef YY_NO_SCAN_BYTES #ifdef YY_USE_PROTOS YY_BUFFER_STATE yy_scan_bytes( yyconst char *bytes, int len ) #else YY_BUFFER_STATE yy_scan_bytes( bytes, len ) yyconst char *bytes; int len; #endif { YY_BUFFER_STATE b; char *buf; yy_size_t n; int i; /* Get memory for full buffer, including space for trailing EOB's. */ n = len + 2; buf = (char *) yy_flex_alloc( n ); if ( ! buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); for ( i = 0; i < len; ++i ) buf[i] = bytes[i]; buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR; b = yy_scan_buffer( buf, n ); if ( ! b ) YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); /* It's okay to grow etc. this buffer, and we should throw it * away when we're done. */ b->yy_is_our_buffer = 1; return b; } #endif #ifndef YY_NO_PUSH_STATE #ifdef YY_USE_PROTOS static void yy_push_state( int new_state ) #else static void yy_push_state( new_state ) int new_state; #endif { if ( yy_start_stack_ptr >= yy_start_stack_depth ) { yy_size_t new_size; yy_start_stack_depth += YY_START_STACK_INCR; new_size = yy_start_stack_depth * sizeof( int ); if ( ! yy_start_stack ) yy_start_stack = (int *) yy_flex_alloc( new_size ); else yy_start_stack = (int *) yy_flex_realloc( (void *) yy_start_stack, new_size ); if ( ! yy_start_stack ) YY_FATAL_ERROR( "out of memory expanding start-condition stack" ); } yy_start_stack[yy_start_stack_ptr++] = YY_START; BEGIN(new_state); } #endif #ifndef YY_NO_POP_STATE static void yy_pop_state() { if ( --yy_start_stack_ptr < 0 ) YY_FATAL_ERROR( "start-condition stack underflow" ); BEGIN(yy_start_stack[yy_start_stack_ptr]); } #endif #ifndef YY_NO_TOP_STATE static int yy_top_state() { return yy_start_stack[yy_start_stack_ptr - 1]; } #endif #ifndef YY_EXIT_FAILURE #define YY_EXIT_FAILURE 2 #endif #ifdef YY_USE_PROTOS static void yy_fatal_error( yyconst char msg[] ) #else static void yy_fatal_error( msg ) char msg[]; #endif { (void) fprintf( stderr, "%s\n", msg ); exit( YY_EXIT_FAILURE ); } /* Redefine yyless() so it works in section 3 code. */ #undef yyless #define yyless(n) \ do \ { \ /* Undo effects of setting up yytext. */ \ yytext[yyleng] = yy_hold_char; \ yy_c_buf_p = yytext + n; \ yy_hold_char = *yy_c_buf_p; \ *yy_c_buf_p = '\0'; \ yyleng = n; \ } \ while ( 0 ) /* Internal utility routines. */ #ifndef yytext_ptr #ifdef YY_USE_PROTOS static void yy_flex_strncpy( char *s1, yyconst char *s2, int n ) #else static void yy_flex_strncpy( s1, s2, n ) char *s1; yyconst char *s2; int n; #endif { register int i; for ( i = 0; i < n; ++i ) s1[i] = s2[i]; } #endif #ifdef YY_NEED_STRLEN #ifdef YY_USE_PROTOS static int yy_flex_strlen( yyconst char *s ) #else static int yy_flex_strlen( s ) yyconst char *s; #endif { register int n; for ( n = 0; s[n]; ++n ) ; return n; } #endif #ifdef YY_USE_PROTOS static void *yy_flex_alloc( yy_size_t size ) #else static void *yy_flex_alloc( size ) yy_size_t size; #endif { return (void *) malloc( size ); } #ifdef YY_USE_PROTOS static void *yy_flex_realloc( void *ptr, yy_size_t size ) #else static void *yy_flex_realloc( ptr, size ) void *ptr; yy_size_t size; #endif { /* The cast to (char *) in the following accommodates both * implementations that use char* generic pointers, and those * that use void* generic pointers. It works with the latter * because both ANSI C and C++ allow castless assignment from * any pointer type to void*, and deal with argument conversions * as though doing an assignment. */ return (void *) realloc( (char *) ptr, size ); } #ifdef YY_USE_PROTOS static void yy_flex_free( void *ptr ) #else static void yy_flex_free( ptr ) void *ptr; #endif { free( ptr ); } #if YY_MAIN int main() { yylex(); return 0; } #endif #line 596 "mgllex.l" /* ***************************************************************************** * * Print current token. This has to be here because the definition of yytext * is in the lexer, and it's not consistent among different lex versions. */ void print_token() { fprintf(stderr, "'%s'", yytext); } /* ***************************************************************************** * * Initialize lexer */ void yylexinit(infile) char *infile; { struct sym *sp; long size; int i; /* Open input file */ if (infile == NULL || !*infile) yyin = stdin; else if ((yyin = fopen(infile, "r")) == NULL) { perror(progname); exit(EXIT_MGL_PROGOPEN); } /* Set name of current input file */ curfile = infile; /* Preset the list of known types with builtin static type list */ typetab = &bool_type; for (i = 0; predeftypes[i].name != NULL; i++) { sp = (struct sym *)nbmalloc(sizeof(struct sym)); sp->type = typesym; sp->name = predeftypes[i].name; sp->level = -1; sp->def.t = predeftypes[i].t; sp->next = symtab; symtab = sp; } /* The string type is special */ string_type.def.a.elementnum = MAX_STR_LEN; string_type.def.a.indextype = &strindex_type; string_type.def.a.basetype = &char_type; /* Preset the list of internal functions */ for (i = 0; functab[i].name != NULL; i++) { sp = (struct sym *)nbmalloc(sizeof(struct sym)); sp->type = funcsym; sp->name = functab[i].name; sp->level = -1; sp->def.f = functab[i].f; sp->next = symtab; symtab = sp; } /* Preset the list of special symbols */ for (i = 0; specialtab[i].name != NULL; i++) { sp = (struct sym *)nbmalloc(sizeof(struct sym)); sp->type = specialsym; sp->name = specialtab[i].name; sp->level = -1; sp->def.s.token = specialtab[i].token; sp->next = symtab; symtab = sp; } /* Preset the list of internal constants */ for (i = 0; predefconsts[i].name != NULL; i++) { sp = (struct sym *)nbmalloc(sizeof(struct sym)); sp->type = constsym; sp->name = predefconsts[i].name; sp->level = -1; sp->def.c.t = predefconsts[i].t; switch (predefconsts[i].t->type) { case EXPR_NUM: sp->def.c.val.i = predefconsts[i].numval; break; case EXPR_BOOL: sp->def.c.val.b = predefconsts[i].numval; break; case EXPR_CHAR: sp->def.c.val.c = predefconsts[i].numval; break; default: break; } sp->next = symtab; symtab = sp; } /* Preset the list of internally defined variables */ for (i = 0; predefvars[i].name != NULL; i++) { #ifdef PARANOID if (dataptr != predefvars[i].addr) interror(118, "internal variable address doesn't match default"); #endif size = predefvars[i].t->size; if (predefvars[i].t->type == EXPR_STRING) size++; dataptr += (size + 1) & 0xfffe; sp = (struct sym *)nbmalloc(sizeof(struct sym)); sp->type = varsym; sp->name = predefvars[i].name; sp->addr = predefvars[i].addr; sp->level = -1; sp->def.v.t = predefvars[i].t; sp->def.v.attr = ATTR_CONST; sp->next = symtab; symtab = sp; } } /* ***************************************************************************** * * Terminate lexer */ void yylexterm() { /* Close input file */ if (curfile != NULL && *curfile) fclose(yyin); } /* ***************************************************************************** * * We don't want to need to use a library, so define yywrap here, if it's * not a macro. */ #ifndef yywrap int yywrap() { return(1); } #endif