Annotation of src/usr.bin/indent/args.c, Revision 1.16
1.16 ! jsg 1: /* $OpenBSD: args.c,v 1.15 2009/10/27 23:59:39 deraadt Exp $ */
1.2 deraadt 2:
1.1 deraadt 3: /*
1.6 pjanzen 4: * Copyright (c) 1980, 1993
5: * The Regents of the University of California.
6: * Copyright (c) 1976 Board of Trustees of the University of Illinois.
1.1 deraadt 7: * Copyright (c) 1985 Sun Microsystems, Inc.
8: * All rights reserved.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
1.13 deraadt 18: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 19: * may be used to endorse or promote products derived from this software
20: * without specific prior written permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32: * SUCH DAMAGE.
33: */
34:
35: /*
36: * Argument scanning and profile reading code. Default parameters are set
37: * here as well.
38: */
39:
40: #include <stdio.h>
41: #include <ctype.h>
42: #include <stdlib.h>
43: #include <string.h>
1.3 millert 44: #include <errno.h>
1.1 deraadt 45: #include "indent_globs.h"
1.4 mickey 46: #include <err.h>
1.1 deraadt 47:
48: /* profile types */
49: #define PRO_SPECIAL 1 /* special case */
50: #define PRO_BOOL 2 /* boolean */
51: #define PRO_INT 3 /* integer */
1.6 pjanzen 52: #define PRO_FONT 4 /* troff font */
1.1 deraadt 53:
54: /* profile specials for booleans */
55: #define ON 1 /* turn it on */
56: #define OFF 0 /* turn it off */
57:
58: /* profile specials for specials */
59: #define IGN 1 /* ignore it */
60: #define CLI 2 /* case label indent (float) */
61: #define STDIN 3 /* use stdin */
62: #define KEY 4 /* type (keyword) */
63:
64: char *option_source = "?";
65:
66: /*
67: * N.B.: because of the way the table here is scanned, options whose names are
68: * substrings of other options must occur later; that is, with -lp vs -l, -lp
69: * must be first. Also, while (most) booleans occur more than once, the last
70: * default value is the one actually assigned.
71: */
72: struct pro {
73: char *p_name; /* name, eg -bl, -cli */
74: int p_type; /* type (int, bool, special) */
75: int p_default; /* the default value (if int) */
76: int p_special; /* depends on type */
77: int *p_obj; /* the associated variable */
78: } pro[] = {
79:
1.4 mickey 80: { "T", PRO_SPECIAL, 0, KEY, 0 },
81: {"bacc", PRO_BOOL, false, ON,
82: &blanklines_around_conditional_compilation },
83: {"badp", PRO_BOOL, false, ON,
84: &blanklines_after_declarations_at_proctop },
85: {"bad", PRO_BOOL, false, ON, &blanklines_after_declarations },
86: {"bap", PRO_BOOL, false, ON, &blanklines_after_procs },
87: {"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments },
88: {"bc", PRO_BOOL, true, OFF, &ps.leave_comma },
89: {"bl", PRO_BOOL, true, OFF, &btype_2 },
90: {"br", PRO_BOOL, true, ON, &btype_2 },
91: {"bs", PRO_BOOL, false, ON, &Bill_Shannon },
92: {"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline },
93: {"cd", PRO_INT, 0, 0, &ps.decl_com_ind },
94: {"ce", PRO_BOOL, true, ON, &cuddle_else },
95: {"ci", PRO_INT, 0, 0, &continuation_indent },
96: {"cli", PRO_SPECIAL, 0, CLI, 0 },
97: {"c", PRO_INT, 33, 0, &ps.com_ind },
98: {"di", PRO_INT, 16, 0, &ps.decl_indent },
99: {"dj", PRO_BOOL, false, ON, &ps.ljust_decl },
100: {"d", PRO_INT, 0, 0, &ps.unindent_displace },
101: {"eei", PRO_BOOL, false, ON, &extra_expression_indent },
102: {"ei", PRO_BOOL, true, ON, &ps.else_if },
103: {"fbc", PRO_FONT, 0, 0, (int *) &blkcomf },
104: {"fbx", PRO_FONT, 0, 0, (int *) &boxcomf },
105: {"fb", PRO_FONT, 0, 0, (int *) &bodyf },
106: {"fc1", PRO_BOOL, true, ON, &format_col1_comments },
107: {"fc", PRO_FONT, 0, 0, (int *) &scomf },
108: {"fk", PRO_FONT, 0, 0, (int *) &keywordf },
109: {"fs", PRO_FONT, 0, 0, (int *) &stringf },
110: {"ip", PRO_BOOL, true, ON, &ps.indent_parameters },
111: {"i", PRO_INT, 8, 0, &ps.ind_size },
112: {"lc", PRO_INT, 0, 0, &block_comment_max_col },
113: {"lp", PRO_BOOL, true, ON, &lineup_to_parens },
114: {"l", PRO_INT, 78, 0, &max_col },
115: {"nbacc", PRO_BOOL, false, OFF,
116: &blanklines_around_conditional_compilation },
117: {"nbadp", PRO_BOOL, false, OFF,
118: &blanklines_after_declarations_at_proctop },
119: {"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations },
120: {"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs },
121: {"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments },
122: {"nbc", PRO_BOOL, true, ON, &ps.leave_comma },
123: {"nbs", PRO_BOOL, false, OFF, &Bill_Shannon },
124: {"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline },
125: {"nce", PRO_BOOL, true, OFF, &cuddle_else },
126: {"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl },
127: {"neei", PRO_BOOL, false, OFF, &extra_expression_indent },
128: {"nei", PRO_BOOL, true, OFF, &ps.else_if },
129: {"nfc1", PRO_BOOL, true, OFF, &format_col1_comments },
130: {"nip", PRO_BOOL, true, OFF, &ps.indent_parameters },
131: {"nlp", PRO_BOOL, true, OFF, &lineup_to_parens },
132: {"npcs", PRO_BOOL, false, OFF, &proc_calls_space },
133: {"npro", PRO_SPECIAL, 0, IGN, 0 },
134: {"npsl", PRO_BOOL, true, OFF, &procnames_start_line },
135: {"nps", PRO_BOOL, false, OFF, &pointer_as_binop },
136: {"nsc", PRO_BOOL, true, OFF, &star_comment_cont },
137: {"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines },
1.16 ! jsg 138: {"nut", PRO_BOOL, true, OFF, &use_tabs},
1.4 mickey 139: {"nv", PRO_BOOL, false, OFF, &verbose },
140: {"pcs", PRO_BOOL, false, ON, &proc_calls_space },
141: {"psl", PRO_BOOL, true, ON, &procnames_start_line },
142: {"ps", PRO_BOOL, false, ON, &pointer_as_binop },
143: {"sc", PRO_BOOL, true, ON, &star_comment_cont },
144: {"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines },
145: {"st", PRO_SPECIAL, 0, STDIN, 0 },
146: {"troff", PRO_BOOL, false, ON, &troff },
1.16 ! jsg 147: {"ut", PRO_BOOL, true, ON, &use_tabs},
1.4 mickey 148: {"v", PRO_BOOL, false, ON, &verbose },
149: /* whew! */
150: { 0, 0, 0, 0, 0 }
1.1 deraadt 151: };
152:
1.9 millert 153: void scan_profile(FILE *);
154: void set_option(char *);
1.4 mickey 155:
1.1 deraadt 156: /*
157: * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
158: * given in these files.
159: */
1.4 mickey 160: void
1.14 deraadt 161: set_profile(void)
1.1 deraadt 162: {
1.6 pjanzen 163: FILE *f;
1.1 deraadt 164: char fname[BUFSIZ];
1.5 millert 165: char *home;
1.1 deraadt 166: static char prof[] = ".indent.pro";
167:
1.5 millert 168: home = getenv("HOME");
169: if (home != NULL && *home != '\0') {
1.12 deraadt 170: if (snprintf(fname, sizeof fname, "%s/%s", home, prof) >= sizeof fname) {
1.5 millert 171: warnx("%s/%s: %s", home, prof, strerror(ENAMETOOLONG));
172: return;
173: }
174: if ((f = fopen(option_source = fname, "r")) != NULL) {
175: scan_profile(f);
176: (void) fclose(f);
177: }
1.1 deraadt 178: }
179: if ((f = fopen(option_source = prof, "r")) != NULL) {
180: scan_profile(f);
181: (void) fclose(f);
182: }
183: option_source = "Command line";
184: }
185:
1.4 mickey 186: void
1.14 deraadt 187: scan_profile(FILE *f)
1.1 deraadt 188: {
1.6 pjanzen 189: int i;
190: char *p;
1.1 deraadt 191: char buf[BUFSIZ];
192:
193: while (1) {
1.6 pjanzen 194: for (p = buf;
195: (i = getc(f)) != EOF && (*p = i) > ' ' && p + 1 - buf < BUFSIZ;
196: ++p)
197: ;
1.1 deraadt 198: if (p != buf) {
1.6 pjanzen 199: *p = 0;
1.1 deraadt 200: if (verbose)
201: printf("profile: %s\n", buf);
202: set_option(buf);
203: }
204: else if (i == EOF)
205: return;
206: }
207: }
208:
209: char *param_start;
210:
1.4 mickey 211: int
1.14 deraadt 212: eqin(char *s1, char *s2)
1.1 deraadt 213: {
214: while (*s1) {
215: if (*s1++ != *s2++)
216: return (false);
217: }
218: param_start = s2;
219: return (true);
220: }
221:
222: /*
223: * Set the defaults.
224: */
1.4 mickey 225: void
1.14 deraadt 226: set_defaults(void)
1.1 deraadt 227: {
1.6 pjanzen 228: struct pro *p;
1.1 deraadt 229:
230: /*
231: * Because ps.case_indent is a float, we can't initialize it from the
232: * table:
233: */
234: ps.case_indent = 0.0; /* -cli0.0 */
235: for (p = pro; p->p_name; p++)
236: if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT)
237: *p->p_obj = p->p_default;
238: }
239:
1.4 mickey 240: void
1.14 deraadt 241: set_option(char *arg)
1.1 deraadt 242: {
1.8 mpech 243: struct pro *p;
1.1 deraadt 244:
245: arg++; /* ignore leading "-" */
246: for (p = pro; p->p_name; p++)
247: if (*p->p_name == *arg && eqin(p->p_name, arg))
248: goto found;
1.6 pjanzen 249: errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1);
1.1 deraadt 250: found:
251: switch (p->p_type) {
252:
253: case PRO_SPECIAL:
254: switch (p->p_special) {
255:
256: case IGN:
257: break;
258:
259: case CLI:
260: if (*param_start == 0)
261: goto need_param;
262: ps.case_indent = atof(param_start);
263: break;
264:
265: case STDIN:
266: if (input == 0)
267: input = stdin;
268: if (output == 0)
269: output = stdout;
270: break;
271:
272: case KEY:
273: if (*param_start == 0)
274: goto need_param;
275: {
1.6 pjanzen 276: char *str;
277: if ((str = strdup(param_start)) == NULL)
1.7 pjanzen 278: err(1, NULL);
1.1 deraadt 279: addkey(str, 4);
280: }
281: break;
282:
283: default:
1.10 mickey 284: errx(1, "set_option: internal error: p_special %d", p->p_special);
1.1 deraadt 285: }
286: break;
287:
288: case PRO_BOOL:
289: if (p->p_special == OFF)
290: *p->p_obj = false;
291: else
292: *p->p_obj = true;
293: break;
294:
295: case PRO_INT:
296: if (!isdigit(*param_start)) {
297: need_param:
1.10 mickey 298: errx(1, "%s: ``%s'' requires a parameter", option_source, arg - 1);
1.1 deraadt 299: }
300: *p->p_obj = atoi(param_start);
1.10 mickey 301: if (*p->p_name == 'i' && *p->p_obj <= 0)
302: errx(1, "%s: ``%s must be greater of zero''",
303: option_source, arg - 1);
1.11 mickey 304: break;
1.1 deraadt 305:
306: case PRO_FONT:
307: parsefont((struct fstate *) p->p_obj, param_start);
308: break;
309:
310: default:
1.10 mickey 311: errx(1, "set_option: internal error: p_type %d", p->p_type);
1.1 deraadt 312: }
313: }