compile_et.c revision 102644 
1/*
2 * Copyright (c) 1998-2002 Kungliga Tekniska H�gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#undef ROKEN_RENAME
35#include "compile_et.h"
36#include <getarg.h>
37
38RCSID("$Id: compile_et.c,v 1.16 2002/08/20 12:44:51 joda Exp $");
39
40#include <roken.h>
41#include <err.h>
42#include "parse.h"
43
44int numerror;
45extern FILE *yyin;
46
47extern void yyparse(void);
48
49long base;
50int number;
51char *prefix;
52char *id_str;
53
54char name[128];
55char Basename[128];
56
57#ifdef YYDEBUG
58extern int yydebug = 1;
59#endif
60
61char *filename;
62char hfn[128];
63char cfn[128];
64
65struct error_code *codes = NULL;
66
67static int
68generate_c(void)
69{
70    int n;
71    struct error_code *ec;
72
73    FILE *c_file = fopen(cfn, "w");
74    if(c_file == NULL)
75	return 1;
76
77    fprintf(c_file, "/* Generated from %s */\n", filename);
78    if(id_str)
79	fprintf(c_file, "/* %s */\n", id_str);
80    fprintf(c_file, "\n");
81    fprintf(c_file, "#include <stddef.h>\n");
82    fprintf(c_file, "#include <com_err.h>\n");
83    fprintf(c_file, "#include \"%s\"\n", hfn);
84    fprintf(c_file, "\n");
85
86    fprintf(c_file, "static const char *%s_error_strings[] = {\n", name);
87
88    for(ec = codes, n = 0; ec; ec = ec->next, n++) {
89	while(n < ec->number) {
90	    fprintf(c_file, "\t/* %03d */ \"Reserved %s error (%d)\",\n",
91		    n, name, n);
92	    n++;
93
94	}
95	fprintf(c_file, "\t/* %03d */ \"%s\",\n", ec->number, ec->string);
96    }
97
98    fprintf(c_file, "\tNULL\n");
99    fprintf(c_file, "};\n");
100    fprintf(c_file, "\n");
101    fprintf(c_file, "#define num_errors %d\n", number);
102    fprintf(c_file, "\n");
103    fprintf(c_file,
104	    "void initialize_%s_error_table_r(struct et_list **list)\n",
105	    name);
106    fprintf(c_file, "{\n");
107    fprintf(c_file,
108	    "    initialize_error_table_r(list, %s_error_strings, "
109	    "num_errors, ERROR_TABLE_BASE_%s);\n", name, name);
110    fprintf(c_file, "}\n");
111    fprintf(c_file, "\n");
112    fprintf(c_file, "void initialize_%s_error_table(void)\n", name);
113    fprintf(c_file, "{\n");
114    fprintf(c_file,
115	    "    init_error_table(%s_error_strings, ERROR_TABLE_BASE_%s, "
116	    "num_errors);\n", name, name);
117    fprintf(c_file, "}\n");
118
119    fclose(c_file);
120    return 0;
121}
122
123static int
124generate_h(void)
125{
126    struct error_code *ec;
127    char fn[128];
128    FILE *h_file = fopen(hfn, "w");
129    char *p;
130
131    if(h_file == NULL)
132	return 1;
133
134    snprintf(fn, sizeof(fn), "__%s__", hfn);
135    for(p = fn; *p; p++)
136	if(!isalnum((unsigned char)*p))
137	    *p = '_';
138
139    fprintf(h_file, "/* Generated from %s */\n", filename);
140    if(id_str)
141	fprintf(h_file, "/* %s */\n", id_str);
142    fprintf(h_file, "\n");
143    fprintf(h_file, "#ifndef %s\n", fn);
144    fprintf(h_file, "#define %s\n", fn);
145    fprintf(h_file, "\n");
146    fprintf(h_file, "struct et_list;\n");
147    fprintf(h_file, "\n");
148    fprintf(h_file,
149	    "void initialize_%s_error_table_r(struct et_list **);\n",
150	    name);
151    fprintf(h_file, "\n");
152    fprintf(h_file, "void initialize_%s_error_table(void);\n", name);
153    fprintf(h_file, "#define init_%s_err_tbl initialize_%s_error_table\n",
154	    name, name);
155    fprintf(h_file, "\n");
156    fprintf(h_file, "typedef enum %s_error_number{\n", name);
157
158    for(ec = codes; ec; ec = ec->next) {
159	fprintf(h_file, "\t%s = %ld%s\n", ec->name, base + ec->number,
160		(ec->next != NULL) ? "," : "");
161    }
162
163    fprintf(h_file, "} %s_error_number;\n", name);
164    fprintf(h_file, "\n");
165    fprintf(h_file, "#define ERROR_TABLE_BASE_%s %ld\n", name, base);
166    fprintf(h_file, "\n");
167    fprintf(h_file, "#endif /* %s */\n", fn);
168
169
170    fclose(h_file);
171    return 0;
172}
173
174static int
175generate(void)
176{
177    return generate_c() || generate_h();
178}
179
180int version_flag;
181int help_flag;
182struct getargs args[] = {
183    { "version", 0, arg_flag, &version_flag },
184    { "help", 0, arg_flag, &help_flag }
185};
186int num_args = sizeof(args) / sizeof(args[0]);
187
188static void
189usage(int code)
190{
191    arg_printusage(args, num_args, NULL, "error-table");
192    exit(code);
193}
194
195int
196main(int argc, char **argv)
197{
198    char *p;
199    int optind = 0;
200
201    setprogname(argv[0]);
202    if(getarg(args, num_args, argc, argv, &optind))
203	usage(1);
204    if(help_flag)
205	usage(0);
206    if(version_flag) {
207	print_version(NULL);
208	exit(0);
209    }
210
211    if(optind == argc)
212	usage(1);
213    filename = argv[optind];
214    yyin = fopen(filename, "r");
215    if(yyin == NULL)
216	err(1, "%s", filename);
217
218
219    p = strrchr(filename, '/');
220    if(p)
221	p++;
222    else
223	p = filename;
224    strncpy(Basename, p, sizeof(Basename));
225    Basename[sizeof(Basename) - 1] = '\0';
226
227    Basename[strcspn(Basename, ".")] = '\0';
228
229    snprintf(hfn, sizeof(hfn), "%s.h", Basename);
230    snprintf(cfn, sizeof(cfn), "%s.c", Basename);
231
232    yyparse();
233    if(numerror)
234	return 1;
235
236    return generate();
237}
238