1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1985 Sun Microsystems, Inc.
5 * Copyright (c) 1980, 1993
6 * The Regents of the University of California. All rights reserved.
7 * All rights reserved.
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 developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * 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 THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 #if 0
39 #ifndef lint
40 static char sccsid[] = "@(#)args.c 8.1 (Berkeley) 6/6/93";
41 #endif /* not lint */
42 #endif
43
44 #include <sys/cdefs.h>
45 __FBSDID("$FreeBSD$");
46
47 /*
48 * Argument scanning and profile reading code. Default parameters are set
49 * here as well.
50 */
51
52 #include <ctype.h>
53 #include <err.h>
54 #include <limits.h>
55 #include <stdio.h>
56 #include <stdlib.h>
57 #include <string.h>
58 #include "indent_globs.h"
59 #include "indent.h"
60
61 #define INDENT_VERSION "2.0"
62
63 /* profile types */
64 #define PRO_SPECIAL 1 /* special case */
65 #define PRO_BOOL 2 /* boolean */
66 #define PRO_INT 3 /* integer */
67
68 /* profile specials for booleans */
69 #define ON 1 /* turn it on */
70 #define OFF 0 /* turn it off */
71
72 /* profile specials for specials */
73 #define IGN 1 /* ignore it */
74 #define CLI 2 /* case label indent (float) */
75 #define STDIN 3 /* use stdin */
76 #define KEY 4 /* type (keyword) */
77
78 static void scan_profile(FILE *);
79
80 #define KEY_FILE 5 /* only used for args */
81 #define VERSION 6 /* only used for args */
82
83 const char *option_source = "?";
84
85 void add_typedefs_from_file(const char *str);
86
87 /*
88 * N.B.: because of the way the table here is scanned, options whose names are
89 * substrings of other options must occur later; that is, with -lp vs -l, -lp
90 * must be first. Also, while (most) booleans occur more than once, the last
91 * default value is the one actually assigned.
92 */
93 struct pro {
94 const char *p_name; /* name, e.g. -bl, -cli */
95 int p_type; /* type (int, bool, special) */
96 int p_default; /* the default value (if int) */
97 int p_special; /* depends on type */
98 int *p_obj; /* the associated variable */
99 } pro[] = {
100
101 {"T", PRO_SPECIAL, 0, KEY, 0},
102 {"U", PRO_SPECIAL, 0, KEY_FILE, 0},
103 {"-version", PRO_SPECIAL, 0, VERSION, 0},
104 {"P", PRO_SPECIAL, 0, IGN, 0},
105 {"bacc", PRO_BOOL, false, ON, &opt.blanklines_around_conditional_compilation},
106 {"badp", PRO_BOOL, false, ON, &opt.blanklines_after_declarations_at_proctop},
107 {"bad", PRO_BOOL, false, ON, &opt.blanklines_after_declarations},
108 {"bap", PRO_BOOL, false, ON, &opt.blanklines_after_procs},
109 {"bbb", PRO_BOOL, false, ON, &opt.blanklines_before_blockcomments},
110 {"bc", PRO_BOOL, true, OFF, &opt.leave_comma},
111 {"bl", PRO_BOOL, true, OFF, &opt.btype_2},
112 {"br", PRO_BOOL, true, ON, &opt.btype_2},
113 {"bs", PRO_BOOL, false, ON, &opt.Bill_Shannon},
114 {"cdb", PRO_BOOL, true, ON, &opt.comment_delimiter_on_blankline},
115 {"cd", PRO_INT, 0, 0, &opt.decl_com_ind},
116 {"ce", PRO_BOOL, true, ON, &opt.cuddle_else},
117 {"ci", PRO_INT, 0, 0, &opt.continuation_indent},
118 {"cli", PRO_SPECIAL, 0, CLI, 0},
119 {"cs", PRO_BOOL, false, ON, &opt.space_after_cast},
120 {"c", PRO_INT, 33, 0, &opt.com_ind},
121 {"di", PRO_INT, 16, 0, &opt.decl_indent},
122 {"dj", PRO_BOOL, false, ON, &opt.ljust_decl},
123 {"d", PRO_INT, 0, 0, &opt.unindent_displace},
124 {"eei", PRO_BOOL, false, ON, &opt.extra_expression_indent},
125 {"ei", PRO_BOOL, true, ON, &opt.else_if},
126 {"fbs", PRO_BOOL, true, ON, &opt.function_brace_split},
127 {"fc1", PRO_BOOL, true, ON, &opt.format_col1_comments},
128 {"fcb", PRO_BOOL, true, ON, &opt.format_block_comments},
129 {"ip", PRO_BOOL, true, ON, &opt.indent_parameters},
130 {"i", PRO_INT, 8, 0, &opt.ind_size},
131 {"lc", PRO_INT, 0, 0, &opt.block_comment_max_col},
132 {"ldi", PRO_INT, -1, 0, &opt.local_decl_indent},
133 {"lpl", PRO_BOOL, false, ON, &opt.lineup_to_parens_always},
134 {"lp", PRO_BOOL, true, ON, &opt.lineup_to_parens},
135 {"l", PRO_INT, 78, 0, &opt.max_col},
136 {"nbacc", PRO_BOOL, false, OFF, &opt.blanklines_around_conditional_compilation},
137 {"nbadp", PRO_BOOL, false, OFF, &opt.blanklines_after_declarations_at_proctop},
138 {"nbad", PRO_BOOL, false, OFF, &opt.blanklines_after_declarations},
139 {"nbap", PRO_BOOL, false, OFF, &opt.blanklines_after_procs},
140 {"nbbb", PRO_BOOL, false, OFF, &opt.blanklines_before_blockcomments},
141 {"nbc", PRO_BOOL, true, ON, &opt.leave_comma},
142 {"nbs", PRO_BOOL, false, OFF, &opt.Bill_Shannon},
143 {"ncdb", PRO_BOOL, true, OFF, &opt.comment_delimiter_on_blankline},
144 {"nce", PRO_BOOL, true, OFF, &opt.cuddle_else},
145 {"ncs", PRO_BOOL, false, OFF, &opt.space_after_cast},
146 {"ndj", PRO_BOOL, false, OFF, &opt.ljust_decl},
147 {"neei", PRO_BOOL, false, OFF, &opt.extra_expression_indent},
148 {"nei", PRO_BOOL, true, OFF, &opt.else_if},
149 {"nfbs", PRO_BOOL, true, OFF, &opt.function_brace_split},
150 {"nfc1", PRO_BOOL, true, OFF, &opt.format_col1_comments},
151 {"nfcb", PRO_BOOL, true, OFF, &opt.format_block_comments},
152 {"nip", PRO_BOOL, true, OFF, &opt.indent_parameters},
153 {"nlpl", PRO_BOOL, false, OFF, &opt.lineup_to_parens_always},
154 {"nlp", PRO_BOOL, true, OFF, &opt.lineup_to_parens},
155 {"npcs", PRO_BOOL, false, OFF, &opt.proc_calls_space},
156 {"npro", PRO_SPECIAL, 0, IGN, 0},
157 {"npsl", PRO_BOOL, true, OFF, &opt.procnames_start_line},
158 {"nsc", PRO_BOOL, true, OFF, &opt.star_comment_cont},
159 {"nsob", PRO_BOOL, false, OFF, &opt.swallow_optional_blanklines},
160 {"nut", PRO_BOOL, true, OFF, &opt.use_tabs},
161 {"nv", PRO_BOOL, false, OFF, &opt.verbose},
162 {"pcs", PRO_BOOL, false, ON, &opt.proc_calls_space},
163 {"psl", PRO_BOOL, true, ON, &opt.procnames_start_line},
164 {"sc", PRO_BOOL, true, ON, &opt.star_comment_cont},
165 {"sob", PRO_BOOL, false, ON, &opt.swallow_optional_blanklines},
166 {"st", PRO_SPECIAL, 0, STDIN, 0},
167 {"ta", PRO_BOOL, false, ON, &opt.auto_typedefs},
168 {"ts", PRO_INT, 8, 0, &opt.tabsize},
169 {"ut", PRO_BOOL, true, ON, &opt.use_tabs},
170 {"v", PRO_BOOL, false, ON, &opt.verbose},
171 /* whew! */
172 {0, 0, 0, 0, 0}
173 };
174
175 /*
176 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
177 * given in these files.
178 */
179 void
set_profile(const char * profile_name)180 set_profile(const char *profile_name)
181 {
182 FILE *f;
183 char fname[PATH_MAX];
184 static char prof[] = ".indent.pro";
185
186 if (profile_name == NULL)
187 snprintf(fname, sizeof(fname), "%s/%s", getenv("HOME"), prof);
188 else
189 snprintf(fname, sizeof(fname), "%s", profile_name + 2);
190 if ((f = fopen(option_source = fname, "r")) != NULL) {
191 scan_profile(f);
192 (void) fclose(f);
193 }
194 if ((f = fopen(option_source = prof, "r")) != NULL) {
195 scan_profile(f);
196 (void) fclose(f);
197 }
198 option_source = "Command line";
199 }
200
201 static void
scan_profile(FILE * f)202 scan_profile(FILE *f)
203 {
204 int comment, i;
205 char *p;
206 char buf[BUFSIZ];
207
208 while (1) {
209 p = buf;
210 comment = 0;
211 while ((i = getc(f)) != EOF) {
212 if (i == '*' && !comment && p > buf && p[-1] == '/') {
213 comment = p - buf;
214 *p++ = i;
215 } else if (i == '/' && comment && p > buf && p[-1] == '*') {
216 p = buf + comment - 1;
217 comment = 0;
218 } else if (isspace((unsigned char)i)) {
219 if (p > buf && !comment)
220 break;
221 } else {
222 *p++ = i;
223 }
224 }
225 if (p != buf) {
226 *p++ = 0;
227 if (opt.verbose)
228 printf("profile: %s\n", buf);
229 set_option(buf);
230 }
231 else if (i == EOF)
232 return;
233 }
234 }
235
236 static const char *
eqin(const char * s1,const char * s2)237 eqin(const char *s1, const char *s2)
238 {
239 while (*s1) {
240 if (*s1++ != *s2++)
241 return (NULL);
242 }
243 return (s2);
244 }
245
246 /*
247 * Set the defaults.
248 */
249 void
set_defaults(void)250 set_defaults(void)
251 {
252 struct pro *p;
253
254 /*
255 * Because ps.case_indent is a float, we can't initialize it from the
256 * table:
257 */
258 opt.case_indent = 0.0; /* -cli0.0 */
259 for (p = pro; p->p_name; p++)
260 if (p->p_type != PRO_SPECIAL)
261 *p->p_obj = p->p_default;
262 }
263
264 void
set_option(char * arg)265 set_option(char *arg)
266 {
267 struct pro *p;
268 const char *param_start;
269
270 arg++; /* ignore leading "-" */
271 for (p = pro; p->p_name; p++)
272 if (*p->p_name == *arg && (param_start = eqin(p->p_name, arg)) != NULL)
273 goto found;
274 errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1);
275 found:
276 switch (p->p_type) {
277
278 case PRO_SPECIAL:
279 switch (p->p_special) {
280
281 case IGN:
282 break;
283
284 case CLI:
285 if (*param_start == 0)
286 goto need_param;
287 opt.case_indent = atof(param_start);
288 break;
289
290 case STDIN:
291 if (input == NULL)
292 input = stdin;
293 if (output == NULL)
294 output = stdout;
295 break;
296
297 case KEY:
298 if (*param_start == 0)
299 goto need_param;
300 add_typename(param_start);
301 break;
302
303 case KEY_FILE:
304 if (*param_start == 0)
305 goto need_param;
306 add_typedefs_from_file(param_start);
307 break;
308
309 case VERSION:
310 printf("FreeBSD indent %s\n", INDENT_VERSION);
311 exit(0);
312
313 default:
314 errx(1, "set_option: internal error: p_special %d", p->p_special);
315 }
316 break;
317
318 case PRO_BOOL:
319 if (p->p_special == OFF)
320 *p->p_obj = false;
321 else
322 *p->p_obj = true;
323 break;
324
325 case PRO_INT:
326 if (!isdigit((unsigned char)*param_start)) {
327 need_param:
328 errx(1, "%s: ``%s'' requires a parameter", option_source, p->p_name);
329 }
330 *p->p_obj = atoi(param_start);
331 break;
332
333 default:
334 errx(1, "set_option: internal error: p_type %d", p->p_type);
335 }
336 }
337
338 void
add_typedefs_from_file(const char * str)339 add_typedefs_from_file(const char *str)
340 {
341 FILE *file;
342 char line[BUFSIZ];
343
344 if ((file = fopen(str, "r")) == NULL) {
345 fprintf(stderr, "indent: cannot open file %s\n", str);
346 exit(1);
347 }
348 while ((fgets(line, BUFSIZ, file)) != NULL) {
349 /* Remove trailing whitespace */
350 line[strcspn(line, " \t\n\r")] = '\0';
351 add_typename(line);
352 }
353 fclose(file);
354 }
355