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mdb.c revision 1.21 
      1 /*	$NetBSD: mdb.c,v 1.21 2001/02/20 23:52:55 cgd 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 
     47 /* Data */
     48 #define MAX 1000
     49 static int menu_no = 0;
     50 static id_rec *menus[MAX];
     51 
     52 /* Other defines */
     53 #define OPT_SUB    1
     54 #define OPT_ENDWIN 2
     55 #define OPT_EXIT   4
     56 
     57 
     58 /* get_menu returns a pointer to a newly created id_rec or an old one. */
     59 
     60 id_rec *
     61 get_menu (char *name)
     62 {
     63 	id_rec *temp;
     64 
     65 	temp = find_id (root, name);
     66 
     67 	if (temp == NULL) {
     68 		if (menu_no < MAX) {
     69 			temp = (id_rec *) malloc (sizeof(id_rec));
     70 			temp->id = strdup(name);
     71 			temp->info = NULL;
     72 			temp->menu_no = menu_no;
     73 			menus[menu_no++] = temp;
     74 			insert_id (&root, temp);
     75 		} else {
     76 			(void) fprintf (stderr, "Too many menus.  "
     77 					"Increase MAX.\n");
     78 			exit(1);
     79 		}
     80 	}
     81 
     82 	return temp;
     83 }
     84 
     85 
     86 /* Verify that all menus are defined. */
     87 
     88 void
     89 check_defined (void)
     90 {
     91 	int i;
     92 
     93 	for (i=0; i<menu_no; i++)
     94 		if (!menus[i]->info)
     95 			yyerror ("Menu '%s' undefined.", menus[i]->id);
     96 }
     97 
     98 
     99 /* Write out the menu file. */
    100 void
    101 write_menu_file (char *initcode)
    102 {
    103 	FILE *out_file;
    104 	FILE *sys_file;
    105 	int i, j;
    106 	char hname[1024];
    107 	char cname[1024];
    108 	char sname[1024];
    109 	char *sys_prefix;
    110 	char *tmpstr;
    111 
    112 	int nlen;
    113 
    114 	int ch;
    115 
    116 	optn_info *toptn;
    117 
    118 	/* Generate file names */
    119 	snprintf (hname, 1024, "%s.h", out_name);
    120 	nlen = strlen(hname);
    121 	if (hname[nlen-2] != '.' || hname[nlen-1] != 'h') {
    122 		(void) fprintf (stderr, "%s: name `%s` too long.\n",
    123 				prog_name, out_name);
    124 		exit(1);
    125 	}
    126 	snprintf (cname, 1024, "%s.c", out_name);
    127 
    128 	/* Open the menu_sys file first. */
    129 	sys_prefix = getenv ("MENUDEF");
    130 	if (sys_prefix == NULL)
    131 		sys_prefix = "/usr/share/misc";
    132 	snprintf (sname, 1024, "%s/%s", sys_prefix, sys_name);
    133 	sys_file = fopen (sname, "r");
    134 	if (sys_file == NULL) {
    135 		(void) fprintf (stderr, "%s: could not open %s.\n",
    136 				prog_name, sname);
    137 		exit (1);
    138 	}
    139 
    140 	/* Output the .h file first. */
    141 	out_file = fopen (hname, "w");
    142 	if (out_file == NULL) {
    143 		(void) fprintf (stderr, "%s: could not open %s.\n",
    144 				prog_name, hname);
    145 		exit (1);
    146 	}
    147 
    148 	/* Write it */
    149 	(void) fprintf (out_file, "%s",
    150 		"/* menu system definitions. */\n"
    151 		"\n"
    152 		"#ifndef MENU_DEFS_H\n"
    153 		"#define MENU_DEFS_H\n"
    154 		"#include <stdlib.h>\n"
    155 		"#include <string.h>\n"
    156 		"#include <ctype.h>\n"
    157 		"#include <curses.h>\n\n"
    158 		);
    159 
    160 	if (do_dynamic)
    161 		(void) fprintf (out_file, "#define DYNAMIC_MENUS\n\n");
    162 
    163 	(void) fprintf (out_file,
    164 		"struct menudesc;\n"
    165 		"typedef\n"
    166 		"struct menu_ent {\n"
    167 		"	char   *opt_name;\n"
    168 		"	int	opt_menu;\n"
    169 		"	int	opt_flags;\n"
    170 		"	int	(*opt_action)(struct menudesc *);\n"
    171 		"} menu_ent ;\n\n"
    172 		"#define OPT_SUB    1\n"
    173 		"#define OPT_ENDWIN 2\n"
    174 		"#define OPT_EXIT   4\n"
    175 		"#define OPT_NOMENU -1\n\n"
    176 		"typedef\n"
    177 		"struct menudesc {\n"
    178 		"	char     *title;\n"
    179 		"	int      y, x;\n"
    180 		"	int	 h, w;\n"
    181 		"	int	 mopt;\n"
    182 		"	int      numopts;\n"
    183 		"	int	 cursel;\n"
    184 		"	int	 topline;\n"
    185 		"	menu_ent *opts;\n"
    186 		"	WINDOW   *mw;\n"
    187 		"	char     *helpstr;\n"
    188 		"	char     *exitstr;\n"
    189 		"	void    (*post_act)(void);\n"
    190 		"	void    (*exit_act)(void);\n"
    191 		"} menudesc ;\n"
    192 		"\n"
    193 		"/* defines for mopt field. */\n"
    194 		"#define MC_NOEXITOPT 1\n"
    195 		"#define MC_NOBOX 2\n"
    196 		"#define MC_SCROLL 4\n"
    197 		"#define MC_NOSHORTCUT 8\n"
    198 		"#define MC_VALID 256\n"
    199 		);
    200 
    201 	(void) fprintf (out_file, "%s",
    202 		"\n"
    203 		"/* initilization flag */\n"
    204 		"extern int __m_endwin;\n"
    205 		"\n"
    206 		"/* Prototypes */\n"
    207 		"int menu_init (void);\n"
    208 		"void process_menu (int num);\n"
    209 		"void __menu_initerror (void);\n"
    210 		);
    211 
    212 	if (do_dynamic)
    213 		(void) fprintf (out_file, "%s",
    214 			"int new_menu (char * title, menu_ent * opts, "
    215 				"int numopts, \n"
    216 				"\tint x, int y, int h, int w, int mopt,\n"
    217 				"\tvoid (*post_act)(void), "
    218 				"void (*exit_act)(void), "
    219 				"char * help);\n"
    220 			"void free_menu (int menu_no);\n"
    221 			);
    222 
    223 	(void) fprintf (out_file, "\n/* Menu names */\n");
    224 	for (i=0; i<menu_no; i++) {
    225 		(void) fprintf (out_file, "#define MENU_%s\t%d\n",
    226 				menus[i]->id, i);
    227 	}
    228 
    229 	if (do_dynamic)
    230 		(void) fprintf (out_file, "\n#define DYN_MENU_START\t%d",
    231 				menu_no);
    232 
    233 	(void) fprintf (out_file, "\n#define MAX_STRLEN %d\n"
    234 			"#endif\n", max_strlen);
    235 	fclose (out_file);
    236 
    237 	/* Now the C file */
    238 	out_file = fopen (cname, "w");
    239 	if (out_file == NULL) {
    240 		(void) fprintf (stderr, "%s: could not open %s.\n",
    241 				prog_name, cname);
    242 		exit (1);
    243 	}
    244 
    245 	/* initial code */
    246 	fprintf (out_file, "#include \"%s\"\n\n", hname);
    247 	fprintf (out_file, "%s\n\n", initcode);
    248 
    249 	/* data definitions */
    250 
    251 	/* func defs */
    252 	for (i=0; i<menu_no; i++) {
    253 		if (strlen(menus[i]->info->postact.code)) {
    254 			(void) fprintf (out_file,
    255 				"void menu_%d_postact(void);\n"
    256 				"void menu_%d_postact(void)\n{", i, i);
    257 			if (menus[i]->info->postact.endwin)
    258 				(void) fprintf (out_file, "\tendwin();\n"
    259 					"\t__m_endwin = 1;\n");
    260 			(void) fprintf (out_file,
    261 					"\t%s\n}\n",
    262 					menus[i]->info->postact.code);
    263 		}
    264 		if (strlen(menus[i]->info->exitact.code)) {
    265 			(void) fprintf (out_file,
    266 				"void menu_%d_exitact(void);\n"
    267 				"void menu_%d_exitact(void)\n{", i, i);
    268 			if (menus[i]->info->exitact.endwin)
    269 				(void) fprintf (out_file, "\tendwin();\n"
    270 					"\t__m_endwin = 1;\n");
    271 			(void) fprintf (out_file, "\t%s\n}\n\n",
    272 					menus[i]->info->exitact.code);
    273 		}
    274 		j = 0;
    275 		toptn = menus[i]->info->optns;
    276 		while (toptn != NULL) {
    277 			if (strlen(toptn->optact.code)) {
    278 				(void) fprintf (out_file,
    279 					"int opt_act_%d_%d(menudesc *m);\n"
    280 					"int opt_act_%d_%d(menudesc *m)\n"
    281 					"{\t%s\n\treturn %s;\n}\n\n",
    282 					i, j, i, j, toptn->optact.code,
    283 					(toptn->doexit ? "1" : "0"));
    284 
    285 
    286 			}
    287 			j++;
    288 			toptn = toptn->next;
    289 		}
    290 
    291 	}
    292 
    293 	/* optentX */
    294 	for (i=0; i<menu_no; i++) {
    295 		if (menus[i]->info->numopt > 53) {
    296 			(void) fprintf (stderr, "Menu %s has "
    297 				"too many options.\n",
    298 				menus[i]->info->title);
    299 			exit (1);
    300 		}
    301 		toptn = menus[i]->info->optns;
    302 		j = 0;
    303 		(void) fprintf (out_file,
    304 				"static menu_ent optent%d[] = {\n", i);
    305 		while (toptn != NULL) {
    306 			(void) fprintf (out_file, "\t{\"%s,%d,%d,",
    307 				toptn->name+1, toptn->menu,
    308 				(toptn->issub ? OPT_SUB : 0)
    309 				+(toptn->doexit ? OPT_EXIT : 0)
    310 				+(toptn->optact.endwin ? OPT_ENDWIN : 0));
    311 			if (strlen(toptn->optact.code))
    312 				(void) fprintf (out_file, "opt_act_%d_%d}",
    313 					i, j);
    314 			else
    315 				(void) fprintf (out_file, "NULL}");
    316 			(void) fprintf (out_file, "%s\n",
    317 				(toptn->next ? "," : ""));
    318 			j++;
    319 			toptn = toptn->next;
    320 		}
    321 		(void) fprintf (out_file, "\t};\n\n");
    322 
    323 	}
    324 
    325 
    326 	/* menus */
    327 	(void) fprintf (out_file, "static struct menudesc menu_def[] = {\n");
    328 	for (i=0; i<menu_no; i++) {
    329 		(void) fprintf (out_file,
    330 			"\t{%s,%d,%d,%d,%d,%d,%d,0,0,optent%d,NULL,",
    331 			menus[i]->info->title, 	menus[i]->info->y,
    332 			menus[i]->info->x, menus[i]->info->h,
    333 			menus[i]->info->w, menus[i]->info->mopt,
    334 			menus[i]->info->numopt, i);
    335 		if (menus[i]->info->helpstr == NULL)
    336 			(void) fprintf (out_file, "NULL");
    337 		else {
    338 			tmpstr = menus[i]->info->helpstr;
    339 			/* Skip an initial newline. */
    340 			if (*tmpstr == '\n')
    341 				tmpstr++;
    342 			(void) fprintf (out_file, "\n\"");
    343 			while (*tmpstr)
    344 				if (*tmpstr != '\n')
    345 				  fputc (*tmpstr++, out_file);
    346 				else {
    347 					(void) fprintf (out_file, "\\n\\\n");
    348 					tmpstr++;
    349 				}
    350 			(void) fprintf (out_file, "\"");
    351 		}
    352 		(void) fprintf (out_file, ",");
    353 		if (menus[i]->info->mopt & NOEXITOPT)
    354 			(void) fprintf (out_file, "NULL");
    355 		else if (menus[i]->info->exitstr != NULL)
    356 			(void) fprintf (out_file, "%s",
    357 				menus[i]->info->exitstr);
    358 		else
    359 			(void) fprintf (out_file, "\"Exit\"");
    360 		if (strlen(menus[i]->info->postact.code))
    361 			(void) fprintf (out_file, ",menu_%d_postact", i);
    362 		else
    363 			(void) fprintf (out_file, ",NULL");
    364 		if (strlen(menus[i]->info->exitact.code))
    365 			(void) fprintf (out_file, ",menu_%d_exitact", i);
    366 		else
    367 			(void) fprintf (out_file, ",NULL");
    368 
    369 		(void) fprintf (out_file, "},\n");
    370 
    371 	}
    372 	(void) fprintf (out_file, "{NULL}};\n\n");
    373 
    374 	/* __menu_initerror: initscr failed. */
    375 	(void) fprintf (out_file,
    376 		"/* __menu_initerror: initscr failed. */\n"
    377 		"void __menu_initerror (void) {\n");
    378 	if (error_act.code == NULL) {
    379 		(void) fprintf (out_file,
    380 			"\t(void) fprintf (stderr, "
    381 			"\"%%s: Could not initialize curses\\n\", "
    382 			"getprogname());\n"
    383 			"\texit(1);\n"
    384 			"}\n");
    385 	} else {
    386 		if (error_act.endwin)
    387 			(void) fprintf (out_file, "\tendwin();\n");
    388 		(void) fprintf (out_file, "%s\n}\n", error_act.code);
    389 	}
    390 
    391 	/* Copy menu_sys.def file. */
    392 	while ((ch = fgetc(sys_file)) != '\014')  /* Control-L */
    393 		fputc(ch, out_file);
    394 
    395 	if (do_dynamic) {
    396 		while ((ch = fgetc(sys_file)) != '\n')
    397 			/* skip it */;
    398 		while ((ch = fgetc(sys_file)) != EOF)
    399 			fputc(ch, out_file);
    400 	}
    401 
    402 	fclose (out_file);
    403 	fclose (sys_file);
    404 }
    405