1/*
2 * Copyright (c) 1985 Sun Microsystems, Inc.
3 * Copyright (c) 1980, 1993
4 * The Regents of the University of California. All rights reserved.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#if 0
37#ifndef lint
38static char sccsid[] = "@(#)args.c 8.1 (Berkeley) 6/6/93";
39#endif /* not lint */
40#endif
41
42#include <sys/cdefs.h>
43__FBSDID("$FreeBSD: head/usr.bin/indent/args.c 116390 2003-06-15 09:28:17Z charnier $");
44
45/*
46 * Argument scanning and profile reading code. Default parameters are set
47 * here as well.
48 */
49
50#include <ctype.h>
51#include <err.h>
52#include <stdio.h>
53#include <stdlib.h>
54#include <string.h>
55#include "indent_globs.h"
56#include "indent.h"
57
58/* profile types */
59#define PRO_SPECIAL 1 /* special case */
60#define PRO_BOOL 2 /* boolean */
61#define PRO_INT 3 /* integer */
62#define PRO_FONT 4 /* troff font */
63
64/* profile specials for booleans */
65#define ON 1 /* turn it on */
66#define OFF 0 /* turn it off */
67
68/* profile specials for specials */
69#define IGN 1 /* ignore it */
70#define CLI 2 /* case label indent (float) */
71#define STDIN 3 /* use stdin */
72#define KEY 4 /* type (keyword) */
73
74static void scan_profile(FILE *);
75
76const char *option_source = "?";
77
78/*
79 * N.B.: because of the way the table here is scanned, options whose names are
80 * substrings of other options must occur later; that is, with -lp vs -l, -lp
81 * must be first. Also, while (most) booleans occur more than once, the last
82 * default value is the one actually assigned.
83 */
84struct pro {
85 const char *p_name; /* name, e.g. -bl, -cli */
86 int p_type; /* type (int, bool, special) */
87 int p_default; /* the default value (if int) */
88 int p_special; /* depends on type */
89 int *p_obj; /* the associated variable */
90} pro[] = {
91
92 {"T", PRO_SPECIAL, 0, KEY, 0},
93 {"bacc", PRO_BOOL, false, ON, &blanklines_around_conditional_compilation},
94 {"badp", PRO_BOOL, false, ON, &blanklines_after_declarations_at_proctop},
95 {"bad", PRO_BOOL, false, ON, &blanklines_after_declarations},
96 {"bap", PRO_BOOL, false, ON, &blanklines_after_procs},
97 {"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments},
98 {"bc", PRO_BOOL, true, OFF, &ps.leave_comma},
99 {"bl", PRO_BOOL, true, OFF, &btype_2},
100 {"br", PRO_BOOL, true, ON, &btype_2},
101 {"bs", PRO_BOOL, false, ON, &Bill_Shannon},
102 {"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline},
103 {"cd", PRO_INT, 0, 0, &ps.decl_com_ind},
104 {"ce", PRO_BOOL, true, ON, &cuddle_else},
105 {"ci", PRO_INT, 0, 0, &continuation_indent},
106 {"cli", PRO_SPECIAL, 0, CLI, 0},
107 {"c", PRO_INT, 33, 0, &ps.com_ind},
108 {"di", PRO_INT, 16, 0, &ps.decl_indent},
109 {"dj", PRO_BOOL, false, ON, &ps.ljust_decl},
110 {"d", PRO_INT, 0, 0, &ps.unindent_displace},
111 {"eei", PRO_BOOL, false, ON, &extra_expression_indent},
112 {"ei", PRO_BOOL, true, ON, &ps.else_if},
113 {"fbc", PRO_FONT, 0, 0, (int *) &blkcomf},
114 {"fbx", PRO_FONT, 0, 0, (int *) &boxcomf},
115 {"fb", PRO_FONT, 0, 0, (int *) &bodyf},
116 {"fc1", PRO_BOOL, true, ON, &format_col1_comments},
117 {"fcb", PRO_BOOL, true, ON, &format_block_comments},
118 {"fc", PRO_FONT, 0, 0, (int *) &scomf},
119 {"fk", PRO_FONT, 0, 0, (int *) &keywordf},
120 {"fs", PRO_FONT, 0, 0, (int *) &stringf},
121 {"ip", PRO_BOOL, true, ON, &ps.indent_parameters},
122 {"i", PRO_INT, 8, 0, &ps.ind_size},
123 {"lc", PRO_INT, 0, 0, &block_comment_max_col},
124 {"lp", PRO_BOOL, true, ON, &lineup_to_parens},
125 {"l", PRO_INT, 78, 0, &max_col},
126 {"nbacc", PRO_BOOL, false, OFF, &blanklines_around_conditional_compilation},
127 {"nbadp", PRO_BOOL, false, OFF, &blanklines_after_declarations_at_proctop},
128 {"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations},
129 {"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs},
130 {"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments},
131 {"nbc", PRO_BOOL, true, ON, &ps.leave_comma},
132 {"nbs", PRO_BOOL, false, OFF, &Bill_Shannon},
133 {"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline},
134 {"nce", PRO_BOOL, true, OFF, &cuddle_else},
135 {"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl},
136 {"neei", PRO_BOOL, false, OFF, &extra_expression_indent},
137 {"nei", PRO_BOOL, true, OFF, &ps.else_if},
138 {"nfc1", PRO_BOOL, true, OFF, &format_col1_comments},
139 {"nfcb", PRO_BOOL, true, OFF, &format_block_comments},
140 {"nip", PRO_BOOL, true, OFF, &ps.indent_parameters},
141 {"nlp", PRO_BOOL, true, OFF, &lineup_to_parens},
142 {"npcs", PRO_BOOL, false, OFF, &proc_calls_space},
143 {"npro", PRO_SPECIAL, 0, IGN, 0},
144 {"npsl", PRO_BOOL, true, OFF, &procnames_start_line},
145 {"nps", PRO_BOOL, false, OFF, &pointer_as_binop},
146 {"nsc", PRO_BOOL, true, OFF, &star_comment_cont},
147 {"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines},
148 {"nv", PRO_BOOL, false, OFF, &verbose},
149 {"pcs", PRO_BOOL, false, ON, &proc_calls_space},
150 {"psl", PRO_BOOL, true, ON, &procnames_start_line},
151 {"ps", PRO_BOOL, false, ON, &pointer_as_binop},
152 {"sc", PRO_BOOL, true, ON, &star_comment_cont},
153 {"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines},
154 {"st", PRO_SPECIAL, 0, STDIN, 0},
155 {"troff", PRO_BOOL, false, ON, &troff},
156 {"v", PRO_BOOL, false, ON, &verbose},
157 /* whew! */
158 {0, 0, 0, 0, 0}
159};
160
161/*
162 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
163 * given in these files.
164 */
165void
166set_profile(void)
167{
168 FILE *f;
169 char fname[BUFSIZ];
170 static char prof[] = ".indent.pro";
171
172 sprintf(fname, "%s/%s", getenv("HOME"), prof);
173 if ((f = fopen(option_source = fname, "r")) != NULL) {
174 scan_profile(f);
175 (void) fclose(f);
176 }
177 if ((f = fopen(option_source = prof, "r")) != NULL) {
178 scan_profile(f);
179 (void) fclose(f);
180 }
181 option_source = "Command line";
182}
183
184static void
185scan_profile(FILE *f)
186{
187 int i;
188 char *p;
189 char buf[BUFSIZ];
190
191 while (1) {
192 for (p = buf; (i = getc(f)) != EOF && (*p = i) > ' '; ++p);
193 if (p != buf) {
194 *p++ = 0;
195 if (verbose)
196 printf("profile: %s\n", buf);
197 set_option(buf);
198 }
199 else if (i == EOF)
200 return;
201 }
202}
203
204const char *param_start;
205
206static int
207eqin(const char *s1, const char *s2)
208{
209 while (*s1) {
210 if (*s1++ != *s2++)
211 return (false);
212 }
213 param_start = s2;
214 return (true);
215}
216
217/*
218 * Set the defaults.
219 */
220void
221set_defaults(void)
222{
223 struct pro *p;
224
225 /*
226 * Because ps.case_indent is a float, we can't initialize it from the
227 * table:
228 */
229 ps.case_indent = 0.0; /* -cli0.0 */
230 for (p = pro; p->p_name; p++)
231 if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT)
232 *p->p_obj = p->p_default;
233}
234
235void
236set_option(char *arg)
237{
238 struct pro *p;
239
240 arg++; /* ignore leading "-" */
241 for (p = pro; p->p_name; p++)
242 if (*p->p_name == *arg && eqin(p->p_name, arg))
243 goto found;
244 errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1);
245found:
246 switch (p->p_type) {
247
248 case PRO_SPECIAL:
249 switch (p->p_special) {
250
251 case IGN:
252 break;
253
254 case CLI:
255 if (*param_start == 0)
256 goto need_param;
257 ps.case_indent = atof(param_start);
258 break;
259
260 case STDIN:
261 if (input == 0)
262 input = stdin;
263 if (output == 0)
264 output = stdout;
265 break;
266
267 case KEY:
268 if (*param_start == 0)
269 goto need_param;
270 {
271 char *str = (char *) malloc(strlen(param_start) + 1);
272 if (str == NULL)
273 err(1, NULL);
274 strcpy(str, param_start);
275 addkey(str, 4);
276 }
277 break;
278
279 default:
280 errx(1, "set_option: internal error: p_special %d", p->p_special);
281 }
282 break;
283
284 case PRO_BOOL:
285 if (p->p_special == OFF)
286 *p->p_obj = false;
287 else
288 *p->p_obj = true;
289 break;
290
291 case PRO_INT:
292 if (!isdigit(*param_start)) {
293 need_param:
294 errx(1, "%s: ``%s'' requires a parameter", option_source, arg - 1);
295 }
296 *p->p_obj = atoi(param_start);
297 break;
298
299 case PRO_FONT:
300 parsefont((struct fstate *) p->p_obj, param_start);
301 break;
302
303 default:
304 errx(1, "set_option: internal error: p_type %d", p->p_type);
305 }
306}