1 /* $NetBSD: ex_abbrev.c,v 1.3 2014/01/26 21:43:45 christos Exp $ */
2 /*-
3 * Copyright (c) 1992, 1993, 1994
4 * The Regents of the University of California. All rights reserved.
5 * Copyright (c) 1992, 1993, 1994, 1995, 1996
6 * Keith Bostic. All rights reserved.
7 *
8 * See the LICENSE file for redistribution information.
9 */
10
11 #include "config.h"
12
13 #include <sys/cdefs.h>
14 #if 0
15 #ifndef lint
16 static const char sccsid[] = "Id: ex_abbrev.c,v 10.10 2001/12/16 18:18:54 skimo Exp (Berkeley) Date: 2001/12/16 18:18:54 ";
17 #endif /* not lint */
18 #else
19 __RCSID("$NetBSD: ex_abbrev.c,v 1.3 2014/01/26 21:43:45 christos Exp $");
20 #endif
21
22 #include <sys/types.h>
23 #include <sys/queue.h>
24 #include <sys/time.h>
25
26 #include <bitstring.h>
27 #include <ctype.h>
28 #include <limits.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32
33 #include "../common/common.h"
34 #include "../vi/vi.h"
35
36 /*
37 * ex_abbr -- :abbreviate [key replacement]
38 * Create an abbreviation or display abbreviations.
39 *
40 * PUBLIC: int ex_abbr __P((SCR *, EXCMD *));
41 */
42 int
ex_abbr(SCR * sp,EXCMD * cmdp)43 ex_abbr(SCR *sp, EXCMD *cmdp)
44 {
45 CHAR_T *p;
46 size_t len;
47
48 switch (cmdp->argc) {
49 case 0:
50 if (seq_dump(sp, SEQ_ABBREV, 0) == 0)
51 msgq(sp, M_INFO, "105|No abbreviations to display");
52 return (0);
53 case 2:
54 break;
55 default:
56 abort();
57 }
58
59 /*
60 * Check for illegal characters.
61 *
62 * !!!
63 * Another fun one, historically. See vi/v_ntext.c:txt_abbrev() for
64 * details. The bottom line is that all abbreviations have to end
65 * with a "word" character, because it's the transition from word to
66 * non-word characters that triggers the test for an abbreviation. In
67 * addition, because of the way the test is done, there can't be any
68 * transitions from word to non-word character (or vice-versa) other
69 * than between the next-to-last and last characters of the string,
70 * and there can't be any <blank> characters. Warn the user.
71 */
72 if (!inword(cmdp->argv[0]->bp[cmdp->argv[0]->len - 1])) {
73 msgq(sp, M_ERR,
74 "106|Abbreviations must end with a \"word\" character");
75 return (1);
76 }
77 for (p = cmdp->argv[0]->bp; *p != '\0'; ++p)
78 if (ISBLANK((UCHAR_T)p[0])) {
79 msgq(sp, M_ERR,
80 "107|Abbreviations may not contain tabs or spaces");
81 return (1);
82 }
83 if (cmdp->argv[0]->len > 2)
84 for (p = cmdp->argv[0]->bp,
85 len = cmdp->argv[0]->len - 2; len; --len, ++p)
86 if (inword(p[0]) != inword(p[1])) {
87 msgq(sp, M_ERR,
88 "108|Abbreviations may not mix word/non-word characters, except at the end");
89 return (1);
90 }
91
92 if (seq_set(sp, NULL, 0, cmdp->argv[0]->bp, cmdp->argv[0]->len,
93 cmdp->argv[1]->bp, cmdp->argv[1]->len, SEQ_ABBREV, SEQ_USERDEF))
94 return (1);
95
96 F_SET(sp->gp, G_ABBREV);
97 return (0);
98 }
99
100 /*
101 * ex_unabbr -- :unabbreviate key
102 * Delete an abbreviation.
103 *
104 * PUBLIC: int ex_unabbr __P((SCR *, EXCMD *));
105 */
106 int
ex_unabbr(SCR * sp,EXCMD * cmdp)107 ex_unabbr(SCR *sp, EXCMD *cmdp)
108 {
109 ARGS *ap;
110
111 ap = cmdp->argv[0];
112 if (!F_ISSET(sp->gp, G_ABBREV) ||
113 seq_delete(sp, ap->bp, ap->len, SEQ_ABBREV)) {
114 msgq_wstr(sp, M_ERR, ap->bp,
115 "109|\"%s\" is not an abbreviation");
116 return (1);
117 }
118 return (0);
119 }
120