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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
/*
* ksh93.c - support for more ksh93 features
*
* This file is part of zsh, the Z shell.
*
* Copyright (c) 2022 Barton E. Schaefer
* 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 Barton E. Schaefer 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 Barton E. Schaefer and the Zsh
* Development Group have been advised of the possibility of such damage.
*
* Barton E. Schaefer 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
* Barton E. Schaefer and the Zsh Development Group have no
* obligation to provide maintenance, support, updates, enhancements, or
* modifications.
*
*/
#include "ksh93.mdh"
#include "ksh93.pro"
/* Implementing "namespace" requires creating a new keword. Hrm. */
/*
* Standard module configuration/linkage
*/
static struct builtin bintab[] = {
BUILTIN("nameref", BINF_ASSIGN, (HandlerFunc)bin_typeset, 0, -1, 0, "gr", "n")
};
#include "zsh.mdh"
static void
edcharsetfn(Param pm, char *x)
{
/*
* To make this work like ksh, we must intercept $KEYS before the widget
* is looked up, so that changing the key sequence causes a different
* widget to be substituted. Somewhat similar to "bindkey -s".
*
* Ksh93 adds SIGKEYBD to the trap list for this purpose.
*/
;
}
static char **
matchgetfn(Param pm)
{
char **zsh_match = getaparam("match");
/* For this to work accurately, ksh emulation should always imply
* that the (#m) and (#b) extendedglob operators are enabled.
*
* When we have a 0th element (ksharrays), it is $MATCH. Elements
* 1st and larger mirror the $match array.
*/
if (pm->u.arr)
freearray(pm->u.arr);
if (zsh_match && *zsh_match) {
if (isset(KSHARRAYS)) {
char **ap =
(char **) zalloc(sizeof(char *) * (arrlen(zsh_match)+1));
pm->u.arr = ap;
*ap++ = ztrdup(getsparam("MATCH"));
while (*zsh_match)
*ap = ztrdup(*zsh_match++);
} else
pm->u.arr = zarrdup(zsh_match);
} else if (isset(KSHARRAYS)) {
pm->u.arr = mkarray(ztrdup(getsparam("MATCH")));
} else
pm->u.arr = NULL;
return arrgetfn(pm);
}
static const struct gsu_scalar constant_gsu =
{ strgetfn, NULL, nullunsetfn };
static const struct gsu_scalar sh_edchar_gsu =
{ strvargetfn, edcharsetfn, nullunsetfn };
static const struct gsu_scalar sh_edmode_gsu =
{ strgetfn, nullstrsetfn, nullunsetfn };
static const struct gsu_array sh_match_gsu =
{ matchgetfn, arrsetfn, stdunsetfn };
static const struct gsu_scalar sh_name_gsu =
{ strvargetfn, nullstrsetfn, nullunsetfn };
static const struct gsu_scalar sh_subscript_gsu =
{ strvargetfn, nullstrsetfn, nullunsetfn };
static char *sh_name;
static char *sh_subscript;
static char *sh_edchar;
static char sh_edmode[2];
/*
* Some parameters listed here do not appear in ksh93.mdd autofeatures
* because they are only instantiated by ksh93_wrapper() below. This
* obviously includes those commented out here.
*/
static struct paramdef partab[] = {
PARAMDEF(".sh.command", PM_NAMEREF|PM_READONLY, "ZSH_DEBUG_CMD", &constant_gsu),
PARAMDEF(".sh.edchar", PM_SCALAR|PM_SPECIAL, &sh_edchar, &sh_edchar_gsu),
PARAMDEF(".sh.edcol", PM_NAMEREF|PM_READONLY, "CURSOR", &constant_gsu),
PARAMDEF(".sh.edmode", PM_SCALAR|PM_READONLY|PM_SPECIAL, &sh_edmode, &sh_edmode_gsu),
PARAMDEF(".sh.edtext", PM_NAMEREF|PM_READONLY, "BUFFER", &constant_gsu),
PARAMDEF(".sh.file", PM_NAMEREF|PM_READONLY, "ZSH_SCRIPT", &constant_gsu),
/* PARAMDEF(".sh.fun", PM_SCALAR|PM_UNSET, NULL, &constant_gsu), */
/* PARAMDEF(".sh.level", PM_INTEGER|PM_UNSET, NULL, &constant_gsu), */
PARAMDEF(".sh.lineno", PM_NAMEREF|PM_READONLY, "LINENO", &constant_gsu),
PARAMDEF(".sh.match", PM_ARRAY|PM_READONLY, NULL, &sh_match_gsu),
PARAMDEF(".sh.name", PM_SCALAR|PM_READONLY|PM_SPECIAL, &sh_name, &sh_name_gsu),
PARAMDEF(".sh.subscript", PM_SCALAR|PM_READONLY|PM_SPECIAL, &sh_subscript, &sh_subscript_gsu),
PARAMDEF(".sh.subshell", PM_NAMEREF|PM_READONLY, "ZSH_SUBSHELL", &constant_gsu),
/* SPECIALPMDEF(".sh.value", 0, NULL, NULL, NULL), */
PARAMDEF(".sh.version", PM_NAMEREF|PM_READONLY, "ZSH_PATCHLEVEL", &constant_gsu)
};
static struct features module_features = {
bintab, sizeof(bintab)/sizeof(*bintab),
NULL, 0,
NULL, 0,
partab, sizeof(partab)/sizeof(*partab),
0
};
/**/
static int
ksh93_wrapper(Eprog prog, FuncWrap w, char *name)
{
Funcstack f;
Param pm;
zlong num = funcstack->prev ? getiparam(".sh.level") : 0;
if (!EMULATION(EMULATE_KSH))
return 1;
if (num == 0)
for (f = funcstack; f; f = f->prev, num++);
else
num++;
queue_signals();
++locallevel; /* Make these local */
if ((pm = createparam(".sh.level", PM_LOCAL|PM_UNSET))) {
pm->level = locallevel; /* Why is this necessary? */
setiparam(".sh.level", num);
}
if ((pm = createparam(".sh.fun", PM_LOCAL|PM_UNSET))) {
pm->level = locallevel;
setsparam(".sh.fun", ztrdup(name));
pm->node.flags |= PM_READONLY;
}
if (zleactive) {
extern mod_import_variable char *curkeymapname; /* XXX */
extern mod_import_variable char *varedarg; /* XXX */
/* bindkey -v forces VIMODE so this test is as good as any */
if (curkeymapname && isset(VIMODE) &&
strcmp(curkeymapname, "main") == 0)
strcpy(sh_edmode, "\e");
else
strcpy(sh_edmode, "");
if (!sh_edchar)
sh_edchar = dupstring(getsparam("KEYS"));
if (varedarg) {
char *ie = itype_end((sh_name = dupstring(varedarg)), INAMESPC, 0);
if (ie && *ie) {
*ie++ = '\0';
/* Assume bin_vared has validated subscript */
sh_subscript = dupstring(ie);
ie = sh_subscript + strlen(sh_subscript);
*--ie = '\0';
} else
sh_subscript = NULL;
if ((pm = createparam(".sh.value", PM_LOCAL|PM_NAMEREF|PM_UNSET))) {
pm->level = locallevel;
setloopvar(".sh.value", "BUFFER"); /* Hack */
}
} else
sh_name = sh_subscript = NULL;
} else {
sh_edchar = sh_name = sh_subscript = NULL;
strcpy(sh_edmode, "");
/* TODO:
* - disciplines
* - special handling of .sh.value in math
*/
}
--locallevel;
unqueue_signals();
return 1;
}
static struct funcwrap wrapper[] = {
WRAPDEF(ksh93_wrapper),
};
/**/
int
setup_(UNUSED(Module m))
{
return 0;
}
/**/
int
features_(Module m, char ***features)
{
*features = featuresarray(m, &module_features);
return 0;
}
/**/
int
enables_(Module m, int **enables)
{
return handlefeatures(m, &module_features, enables);
}
/**/
int
boot_(Module m)
{
return addwrapper(m, wrapper);
}
/**/
int
cleanup_(Module m)
{
struct paramdef *p;
deletewrapper(m, wrapper);
/* Clean up namerefs, otherwise deleteparamdef() is confused */
for (p = partab; p < partab + sizeof(partab)/sizeof(*partab); ++p) {
if (p->flags & PM_NAMEREF) {
HashNode hn = gethashnode2(paramtab, p->name);
if (hn)
((Param)hn)->node.flags &= ~PM_NAMEREF;
}
}
return setfeatureenables(m, &module_features, NULL);
}
/**/
int
finish_(UNUSED(Module m))
{
return 0;
}
|
