Annotation of src/usr.bin/indent/args.c, Revision 1.4
1.4 ! mickey 1: /* $OpenBSD: args.c,v 1.3 1996/10/28 00:36:23 millert Exp $ */
1.2 deraadt 2:
1.1 deraadt 3: /*
4: * Copyright (c) 1985 Sun Microsystems, Inc.
5: * Copyright (c) 1980 The Regents of the University of California.
6: * Copyright (c) 1976 Board of Trustees of the University of Illinois.
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: #ifndef lint
39: /*static char sccsid[] = "from: @(#)args.c 5.10 (Berkeley) 2/26/91";*/
1.4 ! mickey 40: static char rcsid[] = "$OpenBSD: args.c,v 1.3 1996/10/28 00:36:23 millert Exp $";
1.1 deraadt 41: #endif /* not lint */
42:
43: /*
44: * Argument scanning and profile reading code. Default parameters are set
45: * here as well.
46: */
47:
48: #include <stdio.h>
49: #include <ctype.h>
50: #include <stdlib.h>
51: #include <string.h>
1.3 millert 52: #include <errno.h>
1.1 deraadt 53: #include "indent_globs.h"
1.4 ! mickey 54: #include <err.h>
1.1 deraadt 55:
56: /* profile types */
57: #define PRO_SPECIAL 1 /* special case */
58: #define PRO_BOOL 2 /* boolean */
59: #define PRO_INT 3 /* integer */
60: #define PRO_FONT 4 /* troff font */
61:
62: /* profile specials for booleans */
63: #define ON 1 /* turn it on */
64: #define OFF 0 /* turn it off */
65:
66: /* profile specials for specials */
67: #define IGN 1 /* ignore it */
68: #define CLI 2 /* case label indent (float) */
69: #define STDIN 3 /* use stdin */
70: #define KEY 4 /* type (keyword) */
71:
72: char *option_source = "?";
73:
74: /*
75: * N.B.: because of the way the table here is scanned, options whose names are
76: * substrings of other options must occur later; that is, with -lp vs -l, -lp
77: * must be first. Also, while (most) booleans occur more than once, the last
78: * default value is the one actually assigned.
79: */
80: struct pro {
81: char *p_name; /* name, eg -bl, -cli */
82: int p_type; /* type (int, bool, special) */
83: int p_default; /* the default value (if int) */
84: int p_special; /* depends on type */
85: int *p_obj; /* the associated variable */
86: } pro[] = {
87:
1.4 ! mickey 88: { "T", PRO_SPECIAL, 0, KEY, 0 },
! 89: {"bacc", PRO_BOOL, false, ON,
! 90: &blanklines_around_conditional_compilation },
! 91: {"badp", PRO_BOOL, false, ON,
! 92: &blanklines_after_declarations_at_proctop },
! 93: {"bad", PRO_BOOL, false, ON, &blanklines_after_declarations },
! 94: {"bap", PRO_BOOL, false, ON, &blanklines_after_procs },
! 95: {"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments },
! 96: {"bc", PRO_BOOL, true, OFF, &ps.leave_comma },
! 97: {"bl", PRO_BOOL, true, OFF, &btype_2 },
! 98: {"br", PRO_BOOL, true, ON, &btype_2 },
! 99: {"bs", PRO_BOOL, false, ON, &Bill_Shannon },
! 100: {"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline },
! 101: {"cd", PRO_INT, 0, 0, &ps.decl_com_ind },
! 102: {"ce", PRO_BOOL, true, ON, &cuddle_else },
! 103: {"ci", PRO_INT, 0, 0, &continuation_indent },
! 104: {"cli", PRO_SPECIAL, 0, CLI, 0 },
! 105: {"c", PRO_INT, 33, 0, &ps.com_ind },
! 106: {"di", PRO_INT, 16, 0, &ps.decl_indent },
! 107: {"dj", PRO_BOOL, false, ON, &ps.ljust_decl },
! 108: {"d", PRO_INT, 0, 0, &ps.unindent_displace },
! 109: {"eei", PRO_BOOL, false, ON, &extra_expression_indent },
! 110: {"ei", PRO_BOOL, true, ON, &ps.else_if },
! 111: {"fbc", PRO_FONT, 0, 0, (int *) &blkcomf },
! 112: {"fbx", PRO_FONT, 0, 0, (int *) &boxcomf },
! 113: {"fb", PRO_FONT, 0, 0, (int *) &bodyf },
! 114: {"fc1", PRO_BOOL, true, ON, &format_col1_comments },
! 115: {"fc", PRO_FONT, 0, 0, (int *) &scomf },
! 116: {"fk", PRO_FONT, 0, 0, (int *) &keywordf },
! 117: {"fs", PRO_FONT, 0, 0, (int *) &stringf },
! 118: {"ip", PRO_BOOL, true, ON, &ps.indent_parameters },
! 119: {"i", PRO_INT, 8, 0, &ps.ind_size },
! 120: {"lc", PRO_INT, 0, 0, &block_comment_max_col },
! 121: {"lp", PRO_BOOL, true, ON, &lineup_to_parens },
! 122: {"l", PRO_INT, 78, 0, &max_col },
! 123: {"nbacc", PRO_BOOL, false, OFF,
! 124: &blanklines_around_conditional_compilation },
! 125: {"nbadp", PRO_BOOL, false, OFF,
! 126: &blanklines_after_declarations_at_proctop },
! 127: {"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations },
! 128: {"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs },
! 129: {"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments },
! 130: {"nbc", PRO_BOOL, true, ON, &ps.leave_comma },
! 131: {"nbs", PRO_BOOL, false, OFF, &Bill_Shannon },
! 132: {"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline },
! 133: {"nce", PRO_BOOL, true, OFF, &cuddle_else },
! 134: {"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl },
! 135: {"neei", PRO_BOOL, false, OFF, &extra_expression_indent },
! 136: {"nei", PRO_BOOL, true, OFF, &ps.else_if },
! 137: {"nfc1", PRO_BOOL, true, OFF, &format_col1_comments },
! 138: {"nip", PRO_BOOL, true, OFF, &ps.indent_parameters },
! 139: {"nlp", PRO_BOOL, true, OFF, &lineup_to_parens },
! 140: {"npcs", PRO_BOOL, false, OFF, &proc_calls_space },
! 141: {"npro", PRO_SPECIAL, 0, IGN, 0 },
! 142: {"npsl", PRO_BOOL, true, OFF, &procnames_start_line },
! 143: {"nps", PRO_BOOL, false, OFF, &pointer_as_binop },
! 144: {"nsc", PRO_BOOL, true, OFF, &star_comment_cont },
! 145: {"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines },
! 146: {"nv", PRO_BOOL, false, OFF, &verbose },
! 147: {"pcs", PRO_BOOL, false, ON, &proc_calls_space },
! 148: {"psl", PRO_BOOL, true, ON, &procnames_start_line },
! 149: {"ps", PRO_BOOL, false, ON, &pointer_as_binop },
! 150: {"sc", PRO_BOOL, true, ON, &star_comment_cont },
! 151: {"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines },
! 152: {"st", PRO_SPECIAL, 0, STDIN, 0 },
! 153: {"troff", PRO_BOOL, false, ON, &troff },
! 154: {"v", PRO_BOOL, false, ON, &verbose },
! 155: /* whew! */
! 156: { 0, 0, 0, 0, 0 }
1.1 deraadt 157: };
158:
1.4 ! mickey 159: void scan_profile();
! 160: void set_option();
! 161:
1.1 deraadt 162: /*
163: * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
164: * given in these files.
165: */
1.4 ! mickey 166: void
1.1 deraadt 167: set_profile()
168: {
169: register FILE *f;
170: char fname[BUFSIZ];
171: static char prof[] = ".indent.pro";
172:
1.3 millert 173: if (strlen(getenv("HOME")) + sizeof(prof) > sizeof(fname)) {
174: warnx("%s/%s: %s", getenv("HOME"), prof, strerror(ENAMETOOLONG));
175: return;
176: }
1.1 deraadt 177: sprintf(fname, "%s/%s", getenv("HOME"), prof);
178: if ((f = fopen(option_source = fname, "r")) != NULL) {
179: scan_profile(f);
180: (void) fclose(f);
181: }
182: if ((f = fopen(option_source = prof, "r")) != NULL) {
183: scan_profile(f);
184: (void) fclose(f);
185: }
186: option_source = "Command line";
187: }
188:
1.4 ! mickey 189: void
1.1 deraadt 190: scan_profile(f)
191: register FILE *f;
192: {
193: register int i;
194: register char *p;
195: char buf[BUFSIZ];
196:
197: while (1) {
198: for (p = buf; (i = getc(f)) != EOF && (*p = i) > ' '; ++p);
199: if (p != buf) {
200: *p++ = 0;
201: if (verbose)
202: printf("profile: %s\n", buf);
203: set_option(buf);
204: }
205: else if (i == EOF)
206: return;
207: }
208: }
209:
210: char *param_start;
211:
1.4 ! mickey 212: int
1.1 deraadt 213: eqin(s1, s2)
214: register char *s1;
215: register char *s2;
216: {
217: while (*s1) {
218: if (*s1++ != *s2++)
219: return (false);
220: }
221: param_start = s2;
222: return (true);
223: }
224:
225: /*
226: * Set the defaults.
227: */
1.4 ! mickey 228: void
1.1 deraadt 229: set_defaults()
230: {
231: register struct pro *p;
232:
233: /*
234: * Because ps.case_indent is a float, we can't initialize it from the
235: * table:
236: */
237: ps.case_indent = 0.0; /* -cli0.0 */
238: for (p = pro; p->p_name; p++)
239: if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT)
240: *p->p_obj = p->p_default;
241: }
242:
1.4 ! mickey 243: void
1.1 deraadt 244: set_option(arg)
245: register char *arg;
246: {
247: register struct pro *p;
248: extern double atof();
249:
250: arg++; /* ignore leading "-" */
251: for (p = pro; p->p_name; p++)
252: if (*p->p_name == *arg && eqin(p->p_name, arg))
253: goto found;
254: fprintf(stderr, "indent: %s: unknown parameter \"%s\"\n", option_source, arg - 1);
255: exit(1);
256: found:
257: switch (p->p_type) {
258:
259: case PRO_SPECIAL:
260: switch (p->p_special) {
261:
262: case IGN:
263: break;
264:
265: case CLI:
266: if (*param_start == 0)
267: goto need_param;
268: ps.case_indent = atof(param_start);
269: break;
270:
271: case STDIN:
272: if (input == 0)
273: input = stdin;
274: if (output == 0)
275: output = stdout;
276: break;
277:
278: case KEY:
279: if (*param_start == 0)
280: goto need_param;
281: {
282: register char *str = (char *) malloc(strlen(param_start) + 1);
283: strcpy(str, param_start);
284: addkey(str, 4);
285: }
286: break;
287:
288: default:
289: fprintf(stderr, "\
290: indent: set_option: internal error: p_special %d\n", p->p_special);
291: exit(1);
292: }
293: break;
294:
295: case PRO_BOOL:
296: if (p->p_special == OFF)
297: *p->p_obj = false;
298: else
299: *p->p_obj = true;
300: break;
301:
302: case PRO_INT:
303: if (!isdigit(*param_start)) {
304: need_param:
305: fprintf(stderr, "indent: %s: ``%s'' requires a parameter\n",
306: option_source, arg - 1);
307: exit(1);
308: }
309: *p->p_obj = atoi(param_start);
310: break;
311:
312: case PRO_FONT:
313: parsefont((struct fstate *) p->p_obj, param_start);
314: break;
315:
316: default:
317: fprintf(stderr, "indent: set_option: internal error: p_type %d\n",
318: p->p_type);
319: exit(1);
320: }
321: }
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