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mdb.c revision 1.29 
      1 /*	$NetBSD: mdb.c,v 1.29 2003/05/16 19:57:22 dsl Exp $	*/
      2 
      3 /*
      4  * Copyright 1997 Piermont Information Systems Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Philip A. Nelson for Piermont Information Systems Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *      This product includes software develooped for the NetBSD Project by
     20  *      Piermont Information Systems Inc.
     21  * 4. The name of Piermont Information Systems Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
     26  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
     29  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     35  * THE POSSIBILITY OF SUCH DAMAGE.
     36  *
     37  */
     38 
     39 /* mdb.c - menu database manipulation */
     40 
     41 #include <stdio.h>
     42 #include <stdlib.h>
     43 #include <string.h>
     44 #include "mdb.h"
     45 #include "defs.h"
     46 #include "pathnames.h"
     47 
     48 /* Data */
     49 #undef MAX
     50 #define MAX 1000
     51 static int menu_no = 0;
     52 static id_rec *menus[MAX];
     53 
     54 /* Other defines */
     55 #define OPT_SUB		1
     56 #define OPT_ENDWIN	2
     57 #define OPT_EXIT	4
     58 
     59 
     60 /* get_menu returns a pointer to a newly created id_rec or an old one. */
     61 
     62 id_rec *
     63 get_menu (char *name)
     64 {
     65 	id_rec *temp;
     66 
     67 	temp = find_id (root, name);
     68 
     69 	if (temp == NULL) {
     70 		if (menu_no < MAX) {
     71 			temp = (id_rec *) malloc (sizeof(id_rec));
     72 			temp->id = strdup(name);
     73 			temp->info = NULL;
     74 			temp->menu_no = menu_no;
     75 			menus[menu_no++] = temp;
     76 			insert_id (&root, temp);
     77 		} else {
     78 			(void) fprintf (stderr, "Too many menus.  "
     79 					"Increase MAX.\n");
     80 			exit(1);
     81 		}
     82 	}
     83 
     84 	return temp;
     85 }
     86 
     87 
     88 /* Verify that all menus are defined. */
     89 
     90 void
     91 check_defined (void)
     92 {
     93 	int i;
     94 
     95 	for (i=0; i<menu_no; i++)
     96 		if (!menus[i]->info)
     97 			yyerror ("Menu '%s' undefined.", menus[i]->id);
     98 }
     99 
    100 
    101 /* Write out the menu file. */
    102 void
    103 write_menu_file (char *initcode)
    104 {
    105 	FILE *out_file;
    106 	FILE *sys_file;
    107 	int i, j;
    108 	char hname[1024];
    109 	char cname[1024];
    110 	char sname[1024];
    111 	char *sys_prefix;
    112 	char *tmpstr;
    113 
    114 	int nlen;
    115 
    116 	int ch;
    117 
    118 	optn_info *toptn;
    119 
    120 	/* Generate file names */
    121 	snprintf (hname, 1024, "%s.h", out_name);
    122 	nlen = strlen(hname);
    123 	if (hname[nlen-2] != '.' || hname[nlen-1] != 'h') {
    124 		(void) fprintf (stderr, "%s: name `%s` too long.\n",
    125 				prog_name, out_name);
    126 		exit(1);
    127 	}
    128 	snprintf (cname, 1024, "%s.c", out_name);
    129 
    130 	/* Open the menu_sys file first. */
    131 	sys_prefix = getenv ("MENUDEF");
    132 	if (sys_prefix == NULL)
    133 		sys_prefix = _PATH_DEFSYSPREFIX;
    134 	snprintf (sname, 1024, "%s/%s", sys_prefix, sys_name);
    135 	sys_file = fopen (sname, "r");
    136 	if (sys_file == NULL) {
    137 		(void) fprintf (stderr, "%s: could not open %s.\n",
    138 				prog_name, sname);
    139 		exit (1);
    140 	}
    141 
    142 	/* Output the .h file first. */
    143 	out_file = fopen (hname, "w");
    144 	if (out_file == NULL) {
    145 		(void) fprintf (stderr, "%s: could not open %s.\n",
    146 				prog_name, hname);
    147 		exit (1);
    148 	}
    149 
    150 	/* Write it */
    151 	(void) fprintf (out_file, "%s",
    152 		"/* menu system definitions. */\n"
    153 		"\n"
    154 		"#ifndef MENU_DEFS_H\n"
    155 		"#define MENU_DEFS_H\n"
    156 		"#include <stdlib.h>\n"
    157 		"#include <string.h>\n"
    158 		"#include <ctype.h>\n"
    159 		"#include <curses.h>\n\n"
    160 		);
    161 
    162 	if (do_dynamic)
    163 		(void) fprintf (out_file, "#define DYNAMIC_MENUS\n\n");
    164 
    165 	(void) fprintf (out_file,
    166 		"struct menudesc;\n"
    167 		"typedef\n"
    168 		"struct menu_ent {\n"
    169 		"	const char	*opt_name;\n"
    170 		"	int		opt_menu;\n"
    171 		"	int		opt_flags;\n"
    172 		"	int		(*opt_action)(struct menudesc *);\n"
    173 		"} menu_ent ;\n\n"
    174 		"#define OPT_SUB	1\n"
    175 		"#define OPT_ENDWIN	2\n"
    176 		"#define OPT_EXIT	4\n"
    177 		"#define OPT_NOMENU	-1\n\n"
    178 		"typedef\n"
    179 		"struct menudesc {\n"
    180 		"	const char	*title;\n"
    181 		"	int		y, x;\n"
    182 		"	int		h, w;\n"
    183 		"	int		mopt;\n"
    184 		"	int		numopts;\n"
    185 		"	int		cursel;\n"
    186 		"	int		topline;\n"
    187 		"	menu_ent	*opts;\n"
    188 		"	WINDOW		*mw;\n"
    189 		"	const char	*helpstr;\n"
    190 		"	const char	*exitstr;\n"
    191 		"	void		(*post_act)(void);\n"
    192 		"	void		(*exit_act)(void);\n"
    193 		"} menudesc ;\n"
    194 		"\n"
    195 		"/* defines for mopt field. */\n"
    196 		"#define MC_NOEXITOPT 1\n"
    197 		"#define MC_NOBOX 2\n"
    198 		"#define MC_SCROLL 4\n"
    199 		"#define MC_NOSHORTCUT 8\n"
    200 		"#define MC_VALID 256\n"
    201 		);
    202 
    203 	(void) fprintf (out_file, "%s",
    204 		"\n"
    205 		"/* initilization flag */\n"
    206 		"extern int __m_endwin;\n"
    207 		"\n"
    208 		"/* Prototypes */\n"
    209 		"int menu_init (void);\n"
    210 		"void process_menu (int num);\n"
    211 		"void __menu_initerror (void);\n"
    212 		);
    213 
    214 	if (do_dynamic)
    215 		(void) fprintf (out_file, "%s",
    216 			"int new_menu (char * title, menu_ent * opts, "
    217 				"int numopts, \n"
    218 				"\tint x, int y, int h, int w, int mopt,\n"
    219 				"\tvoid (*post_act)(void), "
    220 				"void (*exit_act)(void), "
    221 				"char * help);\n"
    222 			"void free_menu (int menu_no);\n"
    223 			);
    224 
    225 	(void) fprintf (out_file, "\n/* Menu names */\n");
    226 	for (i=0; i<menu_no; i++) {
    227 		(void) fprintf (out_file, "#define MENU_%s\t%d\n",
    228 				menus[i]->id, i);
    229 	}
    230 
    231 	if (do_dynamic)
    232 		(void) fprintf (out_file, "\n#define DYN_MENU_START\t%d",
    233 				menu_no);
    234 
    235 	(void) fprintf (out_file, "\n#define MAX_STRLEN %d\n"
    236 			"#endif\n", max_strlen);
    237 	fclose (out_file);
    238 
    239 	/* Now the C file */
    240 	out_file = fopen (cname, "w");
    241 	if (out_file == NULL) {
    242 		(void) fprintf (stderr, "%s: could not open %s.\n",
    243 				prog_name, cname);
    244 		exit (1);
    245 	}
    246 
    247 	/* initial code */
    248 	fprintf (out_file, "#include \"%s\"\n\n", hname);
    249 	fprintf (out_file, "%s\n\n", initcode);
    250 
    251 	/* data definitions */
    252 
    253 	/* func defs */
    254 	for (i=0; i<menu_no; i++) {
    255 		if (strlen(menus[i]->info->postact.code)) {
    256 			(void) fprintf (out_file,
    257 				"void menu_%d_postact(void);\n"
    258 				"void menu_%d_postact(void)\n{", i, i);
    259 			if (menus[i]->info->postact.endwin)
    260 				(void) fprintf (out_file, "\tendwin();\n"
    261 					"\t__m_endwin = 1;\n");
    262 			(void) fprintf (out_file,
    263 					"\t%s\n}\n",
    264 					menus[i]->info->postact.code);
    265 		}
    266 		if (strlen(menus[i]->info->exitact.code)) {
    267 			(void) fprintf (out_file,
    268 				"void menu_%d_exitact(void);\n"
    269 				"void menu_%d_exitact(void)\n{", i, i);
    270 			if (menus[i]->info->exitact.endwin)
    271 				(void) fprintf (out_file, "\tendwin();\n"
    272 					"\t__m_endwin = 1;\n");
    273 			(void) fprintf (out_file, "\t%s\n}\n\n",
    274 					menus[i]->info->exitact.code);
    275 		}
    276 		j = 0;
    277 		toptn = menus[i]->info->optns;
    278 		while (toptn != NULL) {
    279 			if (strlen(toptn->optact.code)) {
    280 				(void) fprintf (out_file,
    281 					"int opt_act_%d_%d(menudesc *m);\n"
    282 					"/*ARGSUSED*/\n"
    283 					"int opt_act_%d_%d(menudesc *m)\n"
    284 					"{\t%s\n\treturn %s;\n}\n\n",
    285 					i, j, i, j, toptn->optact.code,
    286 					(toptn->doexit ? "1" : "0"));
    287 
    288 
    289 			}
    290 			j++;
    291 			toptn = toptn->next;
    292 		}
    293 
    294 	}
    295 
    296 	/* optentX */
    297 	for (i=0; i<menu_no; i++) {
    298 		if (menus[i]->info->numopt > 53) {
    299 			(void) fprintf (stderr, "Menu %s has "
    300 				"too many options.\n",
    301 				menus[i]->info->title);
    302 			exit (1);
    303 		}
    304 		toptn = menus[i]->info->optns;
    305 		j = 0;
    306 		(void) fprintf (out_file,
    307 				"static menu_ent optent%d[] = {\n", i);
    308 		while (toptn != NULL) {
    309 			(void) fprintf (out_file, "\t{%s,%d,%d,",
    310 				toptn->name, toptn->menu,
    311 				(toptn->issub ? OPT_SUB : 0)
    312 				+(toptn->doexit ? OPT_EXIT : 0)
    313 				+(toptn->optact.endwin ? OPT_ENDWIN : 0));
    314 			if (strlen(toptn->optact.code))
    315 				(void) fprintf (out_file, "opt_act_%d_%d}",
    316 					i, j);
    317 			else
    318 				(void) fprintf (out_file, "NULL}");
    319 			(void) fprintf (out_file, "%s\n",
    320 				(toptn->next ? "," : ""));
    321 			j++;
    322 			toptn = toptn->next;
    323 		}
    324 		(void) fprintf (out_file, "\t};\n\n");
    325 
    326 	}
    327 
    328 
    329 	/* menus */
    330 	(void) fprintf (out_file, "static struct menudesc menu_def[] = {\n");
    331 	for (i=0; i<menu_no; i++) {
    332 		(void) fprintf (out_file,
    333 			"\t{%s,%d,%d,%d,%d,%d,%d,0,0,optent%d,NULL,",
    334 			menus[i]->info->title, 	menus[i]->info->y,
    335 			menus[i]->info->x, menus[i]->info->h,
    336 			menus[i]->info->w, menus[i]->info->mopt,
    337 			menus[i]->info->numopt, i);
    338 		if (menus[i]->info->helpstr == NULL)
    339 			(void) fprintf (out_file, "NULL");
    340 		else {
    341 			tmpstr = menus[i]->info->helpstr;
    342 			/* Skip an initial newline. */
    343 			if (*tmpstr == '\n')
    344 				tmpstr++;
    345 			(void) fprintf (out_file, "\n\"");
    346 			while (*tmpstr)
    347 				if (*tmpstr != '\n')
    348 					fputc (*tmpstr++, out_file);
    349 				else {
    350 					(void) fprintf (out_file, "\\n\\\n");
    351 					tmpstr++;
    352 				}
    353 			(void) fprintf (out_file, "\"");
    354 		}
    355 		(void) fprintf (out_file, ",");
    356 		if (menus[i]->info->mopt & NOEXITOPT)
    357 			(void) fprintf (out_file, "NULL");
    358 		else if (menus[i]->info->exitstr != NULL)
    359 			(void) fprintf (out_file, "%s",
    360 				menus[i]->info->exitstr);
    361 		else
    362 			(void) fprintf (out_file, "\"Exit\"");
    363 		if (strlen(menus[i]->info->postact.code))
    364 			(void) fprintf (out_file, ",menu_%d_postact", i);
    365 		else
    366 			(void) fprintf (out_file, ",NULL");
    367 		if (strlen(menus[i]->info->exitact.code))
    368 			(void) fprintf (out_file, ",menu_%d_exitact", i);
    369 		else
    370 			(void) fprintf (out_file, ",NULL");
    371 
    372 		(void) fprintf (out_file, "},\n");
    373 
    374 	}
    375 	(void) fprintf (out_file, "{NULL}};\n\n");
    376 
    377 	/* __menu_initerror: initscr failed. */
    378 	(void) fprintf (out_file,
    379 		"/* __menu_initerror: initscr failed. */\n"
    380 		"void __menu_initerror (void) {\n");
    381 	if (error_act.code == NULL) {
    382 		(void) fprintf (out_file,
    383 			"\t(void) fprintf (stderr, "
    384 			"\"%%s: Could not initialize curses\\n\", "
    385 			"getprogname());\n"
    386 			"\texit(1);\n"
    387 			"}\n");
    388 	} else {
    389 		if (error_act.endwin)
    390 			(void) fprintf (out_file, "\tendwin();\n");
    391 		(void) fprintf (out_file, "%s\n}\n", error_act.code);
    392 	}
    393 
    394 	/* Copy menu_sys.def file. */
    395 	while ((ch = fgetc(sys_file)) != '\014')  /* Control-L */
    396 		fputc(ch, out_file);
    397 
    398 	if (do_dynamic) {
    399 		while ((ch = fgetc(sys_file)) != '\n')
    400 			/* skip it */;
    401 		while ((ch = fgetc(sys_file)) != EOF)
    402 			fputc(ch, out_file);
    403 	}
    404 
    405 	fclose (out_file);
    406 	fclose (sys_file);
    407 }
    408