source: trunk/minix/commands/indent/args.c@ 12

Last change on this file since 12 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a
File size: 7.9 KB
Line 
1/**
2 * Copyright (c) 1985 Sun Microsystems, Inc.
3 * Copyright (c) 1980 The Regents of the University of California.
4 * Copyright (c) 1976 Board of Trustees of the University of Illinois.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms are permitted
8 * provided that the above copyright notice and this paragraph are
9 * duplicated in all such forms and that any documentation,
10 * advertising materials, and other materials related to such
11 * distribution and use acknowledge that the software was developed
12 * by the University of California, Berkeley, the University of Illinois,
13 * Urbana, and Sun Microsystems, Inc. The name of either University
14 * or Sun Microsystems may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
19 */
20
21/*
22 * Argument scanning and profile reading code. Default parameters are set
23 * here as well.
24 */
25
26#define PUBLIC extern
27#include <sys/types.h>
28#include <ctype.h>
29#include <string.h>
30#include <stdlib.h>
31#include "globs.h"
32#include "proto.h"
33
34/* profile types */
35#define PRO_SPECIAL 1 /* special case */
36#define PRO_BOOL 2 /* boolean */
37#define PRO_INT 3 /* integer */
38#define PRO_FONT 4 /* troff font */
39
40/* profile specials for booleans */
41#define ON 1 /* turn it on */
42#define OFF 0 /* turn it off */
43
44/* profile specials for specials */
45#define IGN 1 /* ignore it */
46#define CLI 2 /* case label indent (float) */
47#define STDIN 3 /* use stdin */
48#define KEY 4 /* type (keyword) */
49
50/*
51 * N.B.: because of the way the table here is scanned, options whose names
52 * are substrings of other options must occur later; that is, with -lp vs -l,
53 * -lp must be first. Also, while (most) booleans occur more than once, the
54 * last default value is the one actually assigned.
55 */
56struct pro
57{
58 char *p_name; /* name, eg -bl, -cli */
59 int p_type; /* type (int, bool, special) */
60 int p_default; /* the default value (if int) */
61 int p_special; /* depends on type */
62 int *p_obj; /* the associated variable */
63} pro[] =
64
65{
66
67 "T", PRO_SPECIAL, 0, KEY, 0,
68 "bacc", PRO_BOOL, false, ON, &bl_around,
69 "badp", PRO_BOOL, false, ON, &bl_at_proctop,
70 "bad", PRO_BOOL, false, ON, &bl_aft_decl,
71 "bap", PRO_BOOL, false, ON, &bl_a_procs,
72 "bbb", PRO_BOOL, false, ON, &bl_bef_bk,
73 "bc", PRO_BOOL, true, OFF, &ps.leave_comma,
74 "bl", PRO_BOOL, true, OFF, &btype_2,
75 "br", PRO_BOOL, true, ON, &btype_2,
76 "bs", PRO_BOOL, false, ON, &Bill_Shannon,
77 "cdb", PRO_BOOL, true, ON, &del_on_bl,
78 "cd", PRO_INT, 0, 0, &ps.decl_com_ind,
79 "ce", PRO_BOOL, true, ON, &cuddle_else,
80 "ci", PRO_INT, 0, 0, &continuation_indent,
81 "cli", PRO_SPECIAL, 0, CLI, 0,
82 "c", PRO_INT, 33, 0, &ps.com_ind,
83 "di", PRO_INT, 16, 0, &ps.decl_indent,
84 "dj", PRO_BOOL, false, ON, &ps.ljust_decl,
85 "d", PRO_INT, 0, 0, &ps.unindent_displace,
86 "eei", PRO_BOOL, false, ON, &ex_expr_indent,
87 "ei", PRO_BOOL, true, ON, &ps.else_if,
88 "fbc", PRO_FONT, 0, 0, (int *) &blkcomf,
89 "fbx", PRO_FONT, 0, 0, (int *) &boxcomf,
90 "fb", PRO_FONT, 0, 0, (int *) &bodyf,
91 "fc1", PRO_BOOL, true, ON, &format_col1_comments,
92 "fc", PRO_FONT, 0, 0, (int *) &scomf,
93 "fk", PRO_FONT, 0, 0, (int *) &keywordf,
94 "fs", PRO_FONT, 0, 0, (int *) &stringf,
95 "ip", PRO_BOOL, true, ON, &ps.indent_parameters,
96 "i", PRO_INT, 8, 0, &ps.ind_size,
97 "lc", PRO_INT, 0, 0, &bk_max_col,
98 "lp", PRO_BOOL, true, ON, &lineup_to_parens,
99 "l", PRO_INT, 78, 0, &max_col,
100 "nbacc", PRO_BOOL, false, OFF, &bl_around,
101 "nbadp", PRO_BOOL, false, OFF, &bl_at_proctop,
102 "nbad", PRO_BOOL, false, OFF, &bl_aft_decl,
103 "nbap", PRO_BOOL, false, OFF, &bl_a_procs,
104 "nbbb", PRO_BOOL, false, OFF, &bl_bef_bk,
105 "nbc", PRO_BOOL, true, ON, &ps.leave_comma,
106 "nbs", PRO_BOOL, false, OFF, &Bill_Shannon,
107 "ncdb", PRO_BOOL, true, OFF, &del_on_bl,
108 "nce", PRO_BOOL, true, OFF, &cuddle_else,
109 "ndj", PRO_BOOL, false, OFF, &ps.ljust_decl,
110 "neei", PRO_BOOL, false, OFF, &ex_expr_indent,
111 "nei", PRO_BOOL, true, OFF, &ps.else_if,
112 "nfc1", PRO_BOOL, true, OFF, &format_col1_comments,
113 "nip", PRO_BOOL, true, OFF, &ps.indent_parameters,
114 "nlp", PRO_BOOL, true, OFF, &lineup_to_parens,
115 "npcs", PRO_BOOL, false, OFF, &proc_calls_space,
116 "npro", PRO_SPECIAL, 0, IGN, 0,
117 "npsl", PRO_BOOL, true, OFF, &proc_str_line,
118 "nps", PRO_BOOL, false, OFF, &ptr_binop,
119 "nsc", PRO_BOOL, true, OFF, &star_comment_cont,
120 "nsob", PRO_BOOL, false, OFF, &swallow_opt_bl,
121 "nv", PRO_BOOL, false, OFF, &verbose,
122 "pcs", PRO_BOOL, false, ON, &proc_calls_space,
123 "psl", PRO_BOOL, true, ON, &proc_str_line,
124 "ps", PRO_BOOL, false, ON, &ptr_binop,
125 "sc", PRO_BOOL, true, ON, &star_comment_cont,
126 "sob", PRO_BOOL, false, ON, &swallow_opt_bl,
127 "st", PRO_SPECIAL, 0, STDIN, 0,
128 "troff", PRO_BOOL, false, ON, &troff,
129 "v", PRO_BOOL, false, ON, &verbose,
130 /* whew! */
131 0, 0, 0, 0, 0
132};
133
134/*
135 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles
136 * arguments given in these files.
137 */
138void set_profile()
139{
140 register FILE *f;
141 char fname[BUFSIZ];
142 static char prof[] = ".indent.pro";
143
144 sprintf(fname, "%s/%s", getenv("HOME"), prof);
145 if ((f = fopen(fname, "r")) != NULL)
146 {
147 scan_profile(f);
148 (void) fclose(f);
149 }
150 if ((f = fopen(prof, "r")) != NULL)
151 {
152 scan_profile(f);
153 (void) fclose(f);
154 }
155}
156
157void scan_profile(f)
158 register FILE *f;
159{
160 register int i;
161 register char *p;
162 char buf[BUFSIZ];
163
164 while (1)
165 {
166 for (p = buf; (i = getc(f)) != EOF && (*p = (char)i) > ' '; ++p);
167 if (p != buf)
168 {
169 *p++ = 0;
170 if (verbose)
171 printf("profile: %s\n", buf);
172 set_option(buf);
173 } else if (i == EOF)
174 return;
175 }
176}
177
178char *param_start;
179
180int eqin(s1, s2)
181 register char *s1;
182 register char *s2;
183{
184 while (*s1)
185 {
186 if (*s1++ != *s2++)
187 return (false);
188 }
189 param_start = s2;
190 return (true);
191}
192
193/*
194 * Set the defaults.
195 */
196void set_defaults()
197{
198 register struct pro *p;
199
200 /* Because ps.case_indent is a float, we can't initialize it from
201 the table: */
202 ps.case_indent = 0; /* -cli0.0 */
203 for (p = pro; p->p_name; p++)
204 if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT)
205 *p->p_obj = p->p_default;
206}
207
208void set_option(arg)
209 register char *arg;
210{
211 register struct pro *p;
212
213 arg++; /* ignore leading "-" */
214 for (p = pro; p->p_name; p++)
215 if (*p->p_name == *arg && eqin(p->p_name, arg))
216 goto found;
217 fprintf(stderr, "indent: unknown parameter \"%s\"\n", arg - 1);
218 exit(1);
219found:
220 switch (p->p_type)
221 {
222
223 case PRO_SPECIAL:
224 switch (p->p_special)
225 {
226
227 case IGN:
228 break;
229
230 case CLI:
231 if (*param_start == 0)
232 goto need_param;
233 ps.case_indent = atoi(param_start);
234 break;
235
236 case STDIN:
237 if (input == 0)
238 input = stdin;
239 if (output == 0)
240 output = stdout;
241 break;
242
243 case KEY:
244 if (*param_start == 0)
245 goto need_param;
246 {
247 register char *str = (char *) malloc(strlen(param_start) + 1);
248 strcpy(str, param_start);
249 addkey(str, 4);
250 }
251 break;
252
253 default:
254 fprintf(stderr, "\
255indent: set_option: internal error: p_special %d\n", p->p_special);
256 exit(1);
257 }
258 break;
259
260 case PRO_BOOL:
261 if (p->p_special == OFF)
262 *p->p_obj = false;
263 else
264 *p->p_obj = true;
265 break;
266
267 case PRO_INT:
268 if (*param_start == 0)
269 {
270 need_param:
271 fprintf(stderr, "indent: ``%s'' requires a parameter\n",
272 arg - 1);
273 exit(1);
274 }
275 *p->p_obj = atoi(param_start);
276 break;
277
278 case PRO_FONT:
279 parsefont((struct fstate *) p->p_obj, param_start);
280 break;
281
282 default:
283 fprintf(stderr, "indent: set_option: internal error: p_type %d\n",
284 p->p_type);
285 exit(1);
286 }
287}
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