2 * Copyright (c) 1992, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1992, 1993, 1994, 1995, 1996
5 * Keith Bostic. All rights reserved.
7 * See the LICENSE file for redistribution information.
13 static const char sccsid[] = "@(#)ex_abbrev.c 10.7 (Berkeley) 3/6/96";
16 #include <sys/types.h>
17 #include <sys/queue.h>
20 #include <bitstring.h>
27 #include "../common/common.h"
31 * ex_abbr -- :abbreviate [key replacement]
32 * Create an abbreviation or display abbreviations.
34 * PUBLIC: int ex_abbr __P((SCR *, EXCMD *));
46 if (seq_dump(sp, SEQ_ABBREV, 0) == 0)
47 msgq(sp, M_INFO, "105|No abbreviations to display");
56 * Check for illegal characters.
59 * Another fun one, historically. See vi/v_ntext.c:txt_abbrev() for
60 * details. The bottom line is that all abbreviations have to end
61 * with a "word" character, because it's the transition from word to
62 * non-word characters that triggers the test for an abbreviation. In
63 * addition, because of the way the test is done, there can't be any
64 * transitions from word to non-word character (or vice-versa) other
65 * than between the next-to-last and last characters of the string,
66 * and there can't be any <blank> characters. Warn the user.
68 if (!inword(cmdp->argv[0]->bp[cmdp->argv[0]->len - 1])) {
70 "106|Abbreviations must end with a \"word\" character");
73 for (p = cmdp->argv[0]->bp; *p != '\0'; ++p)
76 "107|Abbreviations may not contain tabs or spaces");
79 if (cmdp->argv[0]->len > 2)
80 for (p = cmdp->argv[0]->bp,
81 len = cmdp->argv[0]->len - 2; len; --len, ++p)
82 if (inword(p[0]) != inword(p[1])) {
84 "108|Abbreviations may not mix word/non-word characters, except at the end");
88 if (seq_set(sp, NULL, 0, cmdp->argv[0]->bp, cmdp->argv[0]->len,
89 cmdp->argv[1]->bp, cmdp->argv[1]->len, SEQ_ABBREV, SEQ_USERDEF))
92 F_SET(sp->gp, G_ABBREV);
97 * ex_unabbr -- :unabbreviate key
98 * Delete an abbreviation.
100 * PUBLIC: int ex_unabbr __P((SCR *, EXCMD *));
110 if (!F_ISSET(sp->gp, G_ABBREV) ||
111 seq_delete(sp, ap->bp, ap->len, SEQ_ABBREV)) {
112 msgq_str(sp, M_ERR, ap->bp,
113 "109|\"%s\" is not an abbreviation");