1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* deltochar.c - ZLE module implementing Emacs' zap-to-char
*
* This file is part of zsh, the Z shell.
*
* Copyright (c) 1996-1997 Peter Stephenson
* All rights reserved.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and to distribute modified versions of this software for any
* purpose, provided that the above copyright notice and the following
* two paragraphs appear in all copies of this software.
*
* In no event shall Peter Stephenson or the Zsh Development Group be liable
* to any party for direct, indirect, special, incidental, or consequential
* damages arising out of the use of this software and its documentation,
* even if Peter Stephenson and the Zsh Development Group have been advised of
* the possibility of such damage.
*
* Peter Stephenson and the Zsh Development Group specifically disclaim any
* warranties, including, but not limited to, the implied warranties of
* merchantability and fitness for a particular purpose. The software
* provided hereunder is on an "as is" basis, and Peter Stephenson and the
* Zsh Development Group have no obligation to provide maintenance,
* support, updates, enhancements, or modifications.
*
*/
#include "deltochar.mdh"
#include "deltochar.pro"
static Widget w_deletetochar;
static Widget w_zaptochar;
/**/
static int
deltochar(UNUSED(char **args))
{
ZLE_INT_T c = getfullchar(0);
int dest = zlecs, ok = 0, n = zmult;
int zap = (bindk->widget == w_zaptochar);
if (n > 0) {
while (n-- && dest != zlell) {
while (dest != zlell && (ZLE_INT_T)zleline[dest] != c)
dest++;
if (dest != zlell) {
if (!zap || n > 0)
dest++;
if (!n) {
forekill(dest - zlecs, 0);
ok++;
}
}
}
} else {
/* ignore character cursor is on when scanning backwards */
if (dest)
dest--;
while (n++ && dest != 0) {
while (dest != 0 && (ZLE_INT_T)zleline[dest] != c)
dest--;
if ((ZLE_INT_T)zleline[dest] == c) {
if (!n) {
backkill(zlecs - dest - zap, 1);
ok++;
}
if (dest)
dest--;
}
}
}
return !ok;
}
static struct features module_features = {
NULL, 0,
NULL, 0,
NULL, 0,
NULL, 0,
0
};
/**/
int
setup_(UNUSED(Module m))
{
return 0;
}
/**/
int
features_(Module m, char ***features)
{
*features = featuresarray(m->nam, &module_features);
return 0;
}
/**/
int
enables_(Module m, int **enables)
{
return handlefeatures(m->nam, &module_features, enables);
}
/**/
int
boot_(Module m)
{
w_deletetochar = addzlefunction("delete-to-char", deltochar,
ZLE_KILL | ZLE_KEEPSUFFIX);
if (w_deletetochar) {
w_zaptochar = addzlefunction("zap-to-char", deltochar,
ZLE_KILL | ZLE_KEEPSUFFIX);
if (w_zaptochar)
return 0;
deletezlefunction(w_deletetochar);
}
zwarnnam(m->nam, "deltochar: name clash when adding ZLE functions");
return -1;
}
/**/
int
cleanup_(Module m)
{
deletezlefunction(w_deletetochar);
deletezlefunction(w_zaptochar);
return setfeatureenables(m->nam, &module_features, NULL);
}
/**/
int
finish_(UNUSED(Module m))
{
return 0;
}
|
