Annotation of src/usr.bin/indent/args.c, Revision 1.3
1.3 ! millert 1: /* $OpenBSD: args.c,v 1.2 1996/06/26 05:34:27 deraadt 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";*/
1.3 ! millert 40: static char rcsid[] = "$OpenBSD: args.c,v 1.2 1996/06/26 05:34:27 deraadt 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"
54:
55: /* profile types */
56: #define PRO_SPECIAL 1 /* special case */
57: #define PRO_BOOL 2 /* boolean */
58: #define PRO_INT 3 /* integer */
59: #define PRO_FONT 4 /* troff font */
60:
61: /* profile specials for booleans */
62: #define ON 1 /* turn it on */
63: #define OFF 0 /* turn it off */
64:
65: /* profile specials for specials */
66: #define IGN 1 /* ignore it */
67: #define CLI 2 /* case label indent (float) */
68: #define STDIN 3 /* use stdin */
69: #define KEY 4 /* type (keyword) */
70:
71: char *option_source = "?";
72:
73: /*
74: * N.B.: because of the way the table here is scanned, options whose names are
75: * substrings of other options must occur later; that is, with -lp vs -l, -lp
76: * must be first. Also, while (most) booleans occur more than once, the last
77: * default value is the one actually assigned.
78: */
79: struct pro {
80: char *p_name; /* name, eg -bl, -cli */
81: int p_type; /* type (int, bool, special) */
82: int p_default; /* the default value (if int) */
83: int p_special; /* depends on type */
84: int *p_obj; /* the associated variable */
85: } pro[] = {
86:
87: "T", PRO_SPECIAL, 0, KEY, 0,
88: "bacc", PRO_BOOL, false, ON, &blanklines_around_conditional_compilation,
89: "badp", PRO_BOOL, false, ON, &blanklines_after_declarations_at_proctop,
90: "bad", PRO_BOOL, false, ON, &blanklines_after_declarations,
91: "bap", PRO_BOOL, false, ON, &blanklines_after_procs,
92: "bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments,
93: "bc", PRO_BOOL, true, OFF, &ps.leave_comma,
94: "bl", PRO_BOOL, true, OFF, &btype_2,
95: "br", PRO_BOOL, true, ON, &btype_2,
96: "bs", PRO_BOOL, false, ON, &Bill_Shannon,
97: "cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline,
98: "cd", PRO_INT, 0, 0, &ps.decl_com_ind,
99: "ce", PRO_BOOL, true, ON, &cuddle_else,
100: "ci", PRO_INT, 0, 0, &continuation_indent,
101: "cli", PRO_SPECIAL, 0, CLI, 0,
102: "c", PRO_INT, 33, 0, &ps.com_ind,
103: "di", PRO_INT, 16, 0, &ps.decl_indent,
104: "dj", PRO_BOOL, false, ON, &ps.ljust_decl,
105: "d", PRO_INT, 0, 0, &ps.unindent_displace,
106: "eei", PRO_BOOL, false, ON, &extra_expression_indent,
107: "ei", PRO_BOOL, true, ON, &ps.else_if,
108: "fbc", PRO_FONT, 0, 0, (int *) &blkcomf,
109: "fbx", PRO_FONT, 0, 0, (int *) &boxcomf,
110: "fb", PRO_FONT, 0, 0, (int *) &bodyf,
111: "fc1", PRO_BOOL, true, ON, &format_col1_comments,
112: "fc", PRO_FONT, 0, 0, (int *) &scomf,
113: "fk", PRO_FONT, 0, 0, (int *) &keywordf,
114: "fs", PRO_FONT, 0, 0, (int *) &stringf,
115: "ip", PRO_BOOL, true, ON, &ps.indent_parameters,
116: "i", PRO_INT, 8, 0, &ps.ind_size,
117: "lc", PRO_INT, 0, 0, &block_comment_max_col,
118: "lp", PRO_BOOL, true, ON, &lineup_to_parens,
119: "l", PRO_INT, 78, 0, &max_col,
120: "nbacc", PRO_BOOL, false, OFF, &blanklines_around_conditional_compilation,
121: "nbadp", PRO_BOOL, false, OFF, &blanklines_after_declarations_at_proctop,
122: "nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations,
123: "nbap", PRO_BOOL, false, OFF, &blanklines_after_procs,
124: "nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments,
125: "nbc", PRO_BOOL, true, ON, &ps.leave_comma,
126: "nbs", PRO_BOOL, false, OFF, &Bill_Shannon,
127: "ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline,
128: "nce", PRO_BOOL, true, OFF, &cuddle_else,
129: "ndj", PRO_BOOL, false, OFF, &ps.ljust_decl,
130: "neei", PRO_BOOL, false, OFF, &extra_expression_indent,
131: "nei", PRO_BOOL, true, OFF, &ps.else_if,
132: "nfc1", PRO_BOOL, true, OFF, &format_col1_comments,
133: "nip", PRO_BOOL, true, OFF, &ps.indent_parameters,
134: "nlp", PRO_BOOL, true, OFF, &lineup_to_parens,
135: "npcs", PRO_BOOL, false, OFF, &proc_calls_space,
136: "npro", PRO_SPECIAL, 0, IGN, 0,
137: "npsl", PRO_BOOL, true, OFF, &procnames_start_line,
138: "nps", PRO_BOOL, false, OFF, &pointer_as_binop,
139: "nsc", PRO_BOOL, true, OFF, &star_comment_cont,
140: "nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines,
141: "nv", PRO_BOOL, false, OFF, &verbose,
142: "pcs", PRO_BOOL, false, ON, &proc_calls_space,
143: "psl", PRO_BOOL, true, ON, &procnames_start_line,
144: "ps", PRO_BOOL, false, ON, &pointer_as_binop,
145: "sc", PRO_BOOL, true, ON, &star_comment_cont,
146: "sob", PRO_BOOL, false, ON, &swallow_optional_blanklines,
147: "st", PRO_SPECIAL, 0, STDIN, 0,
148: "troff", PRO_BOOL, false, ON, &troff,
149: "v", PRO_BOOL, false, ON, &verbose,
150: /* whew! */
151: 0, 0, 0, 0, 0
152: };
153:
154: /*
155: * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
156: * given in these files.
157: */
158: set_profile()
159: {
160: register FILE *f;
161: char fname[BUFSIZ];
162: static char prof[] = ".indent.pro";
163:
1.3 ! millert 164: if (strlen(getenv("HOME")) + sizeof(prof) > sizeof(fname)) {
! 165: warnx("%s/%s: %s", getenv("HOME"), prof, strerror(ENAMETOOLONG));
! 166: return;
! 167: }
1.1 deraadt 168: sprintf(fname, "%s/%s", getenv("HOME"), prof);
169: if ((f = fopen(option_source = fname, "r")) != NULL) {
170: scan_profile(f);
171: (void) fclose(f);
172: }
173: if ((f = fopen(option_source = prof, "r")) != NULL) {
174: scan_profile(f);
175: (void) fclose(f);
176: }
177: option_source = "Command line";
178: }
179:
180: scan_profile(f)
181: register FILE *f;
182: {
183: register int i;
184: register char *p;
185: char buf[BUFSIZ];
186:
187: while (1) {
188: for (p = buf; (i = getc(f)) != EOF && (*p = i) > ' '; ++p);
189: if (p != buf) {
190: *p++ = 0;
191: if (verbose)
192: printf("profile: %s\n", buf);
193: set_option(buf);
194: }
195: else if (i == EOF)
196: return;
197: }
198: }
199:
200: char *param_start;
201:
202: eqin(s1, s2)
203: register char *s1;
204: register char *s2;
205: {
206: while (*s1) {
207: if (*s1++ != *s2++)
208: return (false);
209: }
210: param_start = s2;
211: return (true);
212: }
213:
214: /*
215: * Set the defaults.
216: */
217: set_defaults()
218: {
219: register struct pro *p;
220:
221: /*
222: * Because ps.case_indent is a float, we can't initialize it from the
223: * table:
224: */
225: ps.case_indent = 0.0; /* -cli0.0 */
226: for (p = pro; p->p_name; p++)
227: if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT)
228: *p->p_obj = p->p_default;
229: }
230:
231: set_option(arg)
232: register char *arg;
233: {
234: register struct pro *p;
235: extern double atof();
236:
237: arg++; /* ignore leading "-" */
238: for (p = pro; p->p_name; p++)
239: if (*p->p_name == *arg && eqin(p->p_name, arg))
240: goto found;
241: fprintf(stderr, "indent: %s: unknown parameter \"%s\"\n", option_source, arg - 1);
242: exit(1);
243: found:
244: switch (p->p_type) {
245:
246: case PRO_SPECIAL:
247: switch (p->p_special) {
248:
249: case IGN:
250: break;
251:
252: case CLI:
253: if (*param_start == 0)
254: goto need_param;
255: ps.case_indent = atof(param_start);
256: break;
257:
258: case STDIN:
259: if (input == 0)
260: input = stdin;
261: if (output == 0)
262: output = stdout;
263: break;
264:
265: case KEY:
266: if (*param_start == 0)
267: goto need_param;
268: {
269: register char *str = (char *) malloc(strlen(param_start) + 1);
270: strcpy(str, param_start);
271: addkey(str, 4);
272: }
273: break;
274:
275: default:
276: fprintf(stderr, "\
277: indent: set_option: internal error: p_special %d\n", p->p_special);
278: exit(1);
279: }
280: break;
281:
282: case PRO_BOOL:
283: if (p->p_special == OFF)
284: *p->p_obj = false;
285: else
286: *p->p_obj = true;
287: break;
288:
289: case PRO_INT:
290: if (!isdigit(*param_start)) {
291: need_param:
292: fprintf(stderr, "indent: %s: ``%s'' requires a parameter\n",
293: option_source, arg - 1);
294: exit(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: fprintf(stderr, "indent: set_option: internal error: p_type %d\n",
305: p->p_type);
306: exit(1);
307: }
308: }
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