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428
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1 /* Lisp functions for making directory listings.
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2 Copyright (C) 1985, 1986, 1992, 1993, 1994 Free Software Foundation, Inc.
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826
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3 Copyright (C) 2001, 2002 Ben Wing.
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428
|
4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: FSF 19.30. */
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23
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24 #include <config.h>
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25 #include "lisp.h"
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26
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27 #include "buffer.h"
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28 #include "commands.h"
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29 #include "elhash.h"
|
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800
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30 #include "opaque.h"
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428
|
31 #include "regex.h"
|
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460
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32 #include "syntax.h"
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800
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33 #include "sysdep.h"
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34
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35 #include "sysdir.h"
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36 #include "sysfile.h"
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37 #include "syspwd.h"
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38 #include "systime.h"
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428
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39
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528
|
40 #ifdef WIN32_NATIVE
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41 #include "syswindows.h"
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42 #endif
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43
|
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428
|
44 Lisp_Object Vcompletion_ignored_extensions;
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45 Lisp_Object Qdirectory_files;
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46 Lisp_Object Qfile_name_completion;
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47 Lisp_Object Qfile_name_all_completions;
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48 Lisp_Object Qfile_attributes;
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49
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50 static Lisp_Object
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51 close_directory_unwind (Lisp_Object unwind_obj)
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|
52 {
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|
53 DIR *d = (DIR *)get_opaque_ptr (unwind_obj);
|
|
771
|
54 qxe_closedir (d);
|
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428
|
55 free_opaque_ptr (unwind_obj);
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|
|
56 return Qnil;
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|
|
57 }
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58
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59 DEFUN ("directory-files", Fdirectory_files, 1, 5, 0, /*
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60 Return a list of names of files in DIRECTORY.
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61 There are four optional arguments:
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62 If FULL is non-nil, absolute pathnames of the files are returned.
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63 If MATCH is non-nil, only pathnames containing that regexp are returned.
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64 If NOSORT is non-nil, the list is not sorted--its order is unpredictable.
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65 NOSORT is useful if you plan to sort the result yourself.
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66 If FILES-ONLY is the symbol t, then only the "files" in the directory
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67 will be returned; subdirectories will be excluded. If FILES-ONLY is not
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68 nil and not t, then only the subdirectories will be returned. Otherwise,
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69 if FILES-ONLY is nil (the default) then both files and subdirectories will
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70 be returned.
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|
|
71 */
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72 (directory, full, match, nosort, files_only))
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|
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73 {
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74 /* This function can GC */
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75 DIR *d;
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76 Lisp_Object list = Qnil;
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77 Bytecount directorylen;
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78 Lisp_Object handler;
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79 struct re_pattern_buffer *bufp = NULL;
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80 int speccount = specpdl_depth ();
|
|
771
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81 Intbyte *statbuf, *statbuf_tail;
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428
|
82
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|
|
83 struct gcpro gcpro1, gcpro2;
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84 GCPRO2 (directory, list);
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85
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86 /* If the file name has special constructs in it,
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87 call the corresponding file handler. */
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88 handler = Ffind_file_name_handler (directory, Qdirectory_files);
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|
|
89 if (!NILP (handler))
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90 {
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91 UNGCPRO;
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92 if (!NILP (files_only))
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93 return call6 (handler, Qdirectory_files, directory, full, match,
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94 nosort, files_only);
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|
95 else
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96 return call5 (handler, Qdirectory_files, directory, full, match,
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|
97 nosort);
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|
|
98 }
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99
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|
100 /* #### why do we do Fexpand_file_name after file handlers here,
|
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101 but earlier everywhere else? */
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102 directory = Fexpand_file_name (directory, Qnil);
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103 directory = Ffile_name_as_directory (directory);
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104 directorylen = XSTRING_LENGTH (directory);
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105
|
|
771
|
106 statbuf = (Intbyte *) alloca (directorylen + MAXNAMLEN + 1);
|
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428
|
107 memcpy (statbuf, XSTRING_DATA (directory), directorylen);
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|
|
108 statbuf_tail = statbuf + directorylen;
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109
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110 /* XEmacs: this should come after Ffile_name_as_directory() to avoid
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111 potential regexp cache smashage. It comes before the opendir()
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112 because it might signal an error. */
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|
113 if (!NILP (match))
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|
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114 {
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115 CHECK_STRING (match);
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116
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117 /* MATCH might be a flawed regular expression. Rather than
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118 catching and signalling our own errors, we just call
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119 compile_pattern to do the work for us. */
|
|
826
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120 bufp = compile_pattern (match, 0, Qnil, Qnil, 0, 0, ERROR_ME);
|
|
428
|
121 }
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|
122
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123 /* Now *bufp is the compiled form of MATCH; don't call anything
|
|
|
124 which might compile a new regexp until we're done with the loop! */
|
|
|
125
|
|
|
126 /* Do this opendir after anything which might signal an error.
|
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|
127 NOTE: the above comment is old; previously, there was no
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|
128 unwind-protection in case of error, but now there is. */
|
|
771
|
129 d = qxe_opendir (XSTRING_DATA (directory));
|
|
428
|
130 if (!d)
|
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563
|
131 report_file_error ("Opening directory", directory);
|
|
428
|
132
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|
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133 record_unwind_protect (close_directory_unwind, make_opaque_ptr ((void *)d));
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|
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134
|
|
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135 /* Loop reading blocks */
|
|
|
136 while (1)
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|
|
137 {
|
|
771
|
138 DIRENTRY *dp = qxe_readdir (d);
|
|
428
|
139 int len;
|
|
826
|
140 struct syntax_cache scache_struct;
|
|
|
141 struct syntax_cache *scache = &scache_struct;
|
|
428
|
142
|
|
|
143 if (!dp)
|
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144 break;
|
|
|
145 len = NAMLEN (dp);
|
|
|
146 if (DIRENTRY_NONEMPTY (dp)
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|
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147 && (NILP (match)
|
|
826
|
148 || (0 <= re_search (bufp, dp->d_name, len, 0, len, 0, Qnil, 0,
|
|
|
149 scache))))
|
|
428
|
150 {
|
|
|
151 if (!NILP (files_only))
|
|
|
152 {
|
|
|
153 struct stat st;
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|
|
154 int dir_p = 0;
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|
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155
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|
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156 memcpy (statbuf_tail, dp->d_name, len);
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|
|
157 statbuf_tail[len] = 0;
|
|
|
158
|
|
771
|
159 if (qxe_stat (statbuf, &st) == 0
|
|
428
|
160 && (st.st_mode & S_IFMT) == S_IFDIR)
|
|
|
161 dir_p = 1;
|
|
|
162
|
|
|
163 if (EQ (files_only, Qt) && dir_p)
|
|
|
164 continue;
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|
|
165 else if (!EQ (files_only, Qt) && !dir_p)
|
|
|
166 continue;
|
|
|
167 }
|
|
|
168
|
|
|
169 {
|
|
|
170 Lisp_Object name =
|
|
665
|
171 make_string ((Intbyte *)dp->d_name, len);
|
|
428
|
172 if (!NILP (full))
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|
|
173 name = concat2 (directory, name);
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|
|
174
|
|
|
175 list = Fcons (name, list);
|
|
|
176 }
|
|
|
177 }
|
|
|
178 }
|
|
771
|
179 unbind_to (speccount); /* This will close the dir */
|
|
428
|
180
|
|
|
181 if (NILP (nosort))
|
|
|
182 list = Fsort (Fnreverse (list), Qstring_lessp);
|
|
|
183
|
|
|
184 RETURN_UNGCPRO (list);
|
|
|
185 }
|
|
|
186
|
|
|
187 static Lisp_Object file_name_completion (Lisp_Object file,
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|
|
188 Lisp_Object directory,
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|
|
189 int all_flag, int ver_flag);
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|
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190
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|
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191 DEFUN ("file-name-completion", Ffile_name_completion, 2, 2, 0, /*
|
|
444
|
192 Complete file name PARTIAL-FILENAME in directory DIRECTORY.
|
|
|
193 Return the longest prefix common to all file names in DIRECTORY
|
|
|
194 that start with PARTIAL-FILENAME.
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|
|
195 If there is only one and PARTIAL-FILENAME matches it exactly, return t.
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|
|
196 Return nil if DIRECTORY contains no name starting with PARTIAL-FILENAME.
|
|
428
|
197
|
|
444
|
198 File names which end with any member of `completion-ignored-extensions'
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|
|
199 are not considered as possible completions for PARTIAL-FILENAME unless
|
|
|
200 there is no other possible completion. `completion-ignored-extensions'
|
|
|
201 is not applied to the names of directories.
|
|
428
|
202 */
|
|
444
|
203 (partial_filename, directory))
|
|
428
|
204 {
|
|
|
205 /* This function can GC. GC checked 1996.04.06. */
|
|
|
206 Lisp_Object handler;
|
|
|
207
|
|
|
208 /* If the directory name has special constructs in it,
|
|
|
209 call the corresponding file handler. */
|
|
|
210 handler = Ffind_file_name_handler (directory, Qfile_name_completion);
|
|
|
211 if (!NILP (handler))
|
|
444
|
212 return call3 (handler, Qfile_name_completion, partial_filename, directory);
|
|
428
|
213
|
|
|
214 /* If the file name has special constructs in it,
|
|
|
215 call the corresponding file handler. */
|
|
444
|
216 handler = Ffind_file_name_handler (partial_filename, Qfile_name_completion);
|
|
428
|
217 if (!NILP (handler))
|
|
444
|
218 return call3 (handler, Qfile_name_completion, partial_filename, directory);
|
|
428
|
219
|
|
444
|
220 return file_name_completion (partial_filename, directory, 0, 0);
|
|
428
|
221 }
|
|
|
222
|
|
|
223 DEFUN ("file-name-all-completions", Ffile_name_all_completions, 2, 2, 0, /*
|
|
444
|
224 Return a list of all completions of PARTIAL-FILENAME in DIRECTORY.
|
|
|
225 These are all file names in DIRECTORY which begin with PARTIAL-FILENAME.
|
|
428
|
226 */
|
|
444
|
227 (partial_filename, directory))
|
|
428
|
228 {
|
|
|
229 /* This function can GC. GC checked 1997.06.04. */
|
|
|
230 Lisp_Object handler;
|
|
|
231 struct gcpro gcpro1;
|
|
|
232
|
|
|
233 GCPRO1 (directory);
|
|
|
234 directory = Fexpand_file_name (directory, Qnil);
|
|
|
235 /* If the file name has special constructs in it,
|
|
|
236 call the corresponding file handler. */
|
|
|
237 handler = Ffind_file_name_handler (directory, Qfile_name_all_completions);
|
|
|
238 UNGCPRO;
|
|
|
239 if (!NILP (handler))
|
|
444
|
240 return call3 (handler, Qfile_name_all_completions, partial_filename,
|
|
428
|
241 directory);
|
|
|
242
|
|
444
|
243 return file_name_completion (partial_filename, directory, 1, 0);
|
|
428
|
244 }
|
|
|
245
|
|
|
246 static int
|
|
|
247 file_name_completion_stat (Lisp_Object directory, DIRENTRY *dp,
|
|
|
248 struct stat *st_addr)
|
|
|
249 {
|
|
|
250 Bytecount len = NAMLEN (dp);
|
|
|
251 Bytecount pos = XSTRING_LENGTH (directory);
|
|
|
252 int value;
|
|
771
|
253 Intbyte *fullname = (Intbyte *) alloca (len + pos + 2);
|
|
428
|
254
|
|
|
255 memcpy (fullname, XSTRING_DATA (directory), pos);
|
|
|
256 if (!IS_DIRECTORY_SEP (fullname[pos - 1]))
|
|
|
257 fullname[pos++] = DIRECTORY_SEP;
|
|
|
258
|
|
|
259 memcpy (fullname + pos, dp->d_name, len);
|
|
|
260 fullname[pos + len] = 0;
|
|
|
261
|
|
|
262 #ifdef S_IFLNK
|
|
|
263 /* We want to return success if a link points to a nonexistent file,
|
|
|
264 but we want to return the status for what the link points to,
|
|
|
265 in case it is a directory. */
|
|
771
|
266 value = qxe_lstat (fullname, st_addr);
|
|
428
|
267 if (S_ISLNK (st_addr->st_mode))
|
|
771
|
268 qxe_stat (fullname, st_addr);
|
|
428
|
269 #else
|
|
771
|
270 value = qxe_stat (fullname, st_addr);
|
|
428
|
271 #endif
|
|
|
272 return value;
|
|
|
273 }
|
|
|
274
|
|
|
275 static Lisp_Object
|
|
|
276 file_name_completion_unwind (Lisp_Object locative)
|
|
|
277 {
|
|
|
278 DIR *d;
|
|
|
279 Lisp_Object obj = XCAR (locative);
|
|
|
280
|
|
|
281 if (!NILP (obj))
|
|
|
282 {
|
|
|
283 d = (DIR *)get_opaque_ptr (obj);
|
|
771
|
284 qxe_closedir (d);
|
|
428
|
285 free_opaque_ptr (obj);
|
|
|
286 }
|
|
|
287 free_cons (XCONS (locative));
|
|
|
288 return Qnil;
|
|
|
289 }
|
|
|
290
|
|
|
291 static Lisp_Object
|
|
|
292 file_name_completion (Lisp_Object file, Lisp_Object directory, int all_flag,
|
|
|
293 int ver_flag)
|
|
|
294 {
|
|
|
295 /* This function can GC */
|
|
|
296 DIR *d = 0;
|
|
|
297 int matchcount = 0;
|
|
|
298 Lisp_Object bestmatch = Qnil;
|
|
|
299 Charcount bestmatchsize = 0;
|
|
|
300 struct stat st;
|
|
|
301 int passcount;
|
|
|
302 int speccount = specpdl_depth ();
|
|
|
303 Charcount file_name_length;
|
|
|
304 Lisp_Object locative;
|
|
|
305 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
306
|
|
|
307 GCPRO3 (file, directory, bestmatch);
|
|
|
308
|
|
|
309 CHECK_STRING (file);
|
|
|
310
|
|
442
|
311 #ifdef WIN32_NATIVE
|
|
428
|
312 /* Filename completion on Windows ignores case, since Windows
|
|
|
313 filesystems do. */
|
|
|
314 specbind (Qcompletion_ignore_case, Qt);
|
|
442
|
315 #endif /* WIN32_NATIVE */
|
|
428
|
316
|
|
|
317 #ifdef FILE_SYSTEM_CASE
|
|
|
318 file = FILE_SYSTEM_CASE (file);
|
|
|
319 #endif
|
|
|
320 directory = Fexpand_file_name (directory, Qnil);
|
|
826
|
321 file_name_length = string_char_length (file);
|
|
428
|
322
|
|
|
323 /* With passcount = 0, ignore files that end in an ignored extension.
|
|
|
324 If nothing found then try again with passcount = 1, don't ignore them.
|
|
|
325 If looking for all completions, start with passcount = 1,
|
|
|
326 so always take even the ignored ones.
|
|
|
327
|
|
|
328 ** It would not actually be helpful to the user to ignore any possible
|
|
|
329 completions when making a list of them.** */
|
|
|
330
|
|
|
331 /* We cannot use close_directory_unwind() because we change the
|
|
|
332 directory. The old code used to just avoid signaling errors, and
|
|
|
333 call closedir, but it was wrong, because it made sane handling of
|
|
|
334 QUIT impossible and, besides, various utility functions like
|
|
|
335 regexp_ignore_completion_p can signal errors. */
|
|
|
336 locative = noseeum_cons (Qnil, Qnil);
|
|
|
337 record_unwind_protect (file_name_completion_unwind, locative);
|
|
|
338
|
|
|
339 for (passcount = !!all_flag; NILP (bestmatch) && passcount < 2; passcount++)
|
|
|
340 {
|
|
771
|
341 d = qxe_opendir (XSTRING_DATA (Fdirectory_file_name (directory)));
|
|
428
|
342 if (!d)
|
|
563
|
343 report_file_error ("Opening directory", directory);
|
|
428
|
344 XCAR (locative) = make_opaque_ptr ((void *)d);
|
|
|
345
|
|
|
346 /* Loop reading blocks */
|
|
|
347 while (1)
|
|
|
348 {
|
|
|
349 DIRENTRY *dp;
|
|
|
350 Bytecount len;
|
|
|
351 /* scmp() works in characters, not bytes, so we have to compute
|
|
|
352 this value: */
|
|
|
353 Charcount cclen;
|
|
|
354 int directoryp;
|
|
|
355 int ignored_extension_p = 0;
|
|
665
|
356 Intbyte *d_name;
|
|
428
|
357
|
|
771
|
358 dp = qxe_readdir (d);
|
|
428
|
359 if (!dp) break;
|
|
|
360
|
|
771
|
361 /* Cast to Intbyte* is OK, as qxe_readdir() Mule-encapsulates. */
|
|
665
|
362 d_name = (Intbyte *) dp->d_name;
|
|
428
|
363 len = NAMLEN (dp);
|
|
|
364 cclen = bytecount_to_charcount (d_name, len);
|
|
|
365
|
|
|
366 QUIT;
|
|
|
367
|
|
|
368 if (! DIRENTRY_NONEMPTY (dp)
|
|
|
369 || cclen < file_name_length
|
|
|
370 || 0 <= scmp (d_name, XSTRING_DATA (file), file_name_length))
|
|
|
371 continue;
|
|
|
372
|
|
|
373 if (file_name_completion_stat (directory, dp, &st) < 0)
|
|
|
374 continue;
|
|
|
375
|
|
|
376 directoryp = ((st.st_mode & S_IFMT) == S_IFDIR);
|
|
|
377 if (directoryp)
|
|
|
378 {
|
|
|
379 #ifndef TRIVIAL_DIRECTORY_ENTRY
|
|
|
380 #define TRIVIAL_DIRECTORY_ENTRY(n) (!strcmp (n, ".") || !strcmp (n, ".."))
|
|
|
381 #endif
|
|
|
382 /* "." and ".." are never interesting as completions, but are
|
|
|
383 actually in the way in a directory containing only one file. */
|
|
|
384 if (!passcount && TRIVIAL_DIRECTORY_ENTRY (dp->d_name))
|
|
|
385 continue;
|
|
|
386 }
|
|
|
387 else
|
|
|
388 {
|
|
|
389 /* Compare extensions-to-be-ignored against end of this file name */
|
|
|
390 /* if name is not an exact match against specified string. */
|
|
|
391 if (!passcount && cclen > file_name_length)
|
|
|
392 {
|
|
|
393 Lisp_Object tem;
|
|
|
394 /* and exit this for loop if a match is found */
|
|
|
395 EXTERNAL_LIST_LOOP (tem, Vcompletion_ignored_extensions)
|
|
|
396 {
|
|
|
397 Lisp_Object elt = XCAR (tem);
|
|
|
398 Charcount skip;
|
|
|
399
|
|
|
400 CHECK_STRING (elt);
|
|
|
401
|
|
826
|
402 skip = cclen - string_char_length (elt);
|
|
428
|
403 if (skip < 0) continue;
|
|
|
404
|
|
|
405 if (0 > scmp (charptr_n_addr (d_name, skip),
|
|
|
406 XSTRING_DATA (elt),
|
|
826
|
407 string_char_length (elt)))
|
|
428
|
408 {
|
|
|
409 ignored_extension_p = 1;
|
|
|
410 break;
|
|
|
411 }
|
|
|
412 }
|
|
|
413 }
|
|
|
414 }
|
|
|
415
|
|
|
416 /* If an ignored-extensions match was found,
|
|
|
417 don't process this name as a completion. */
|
|
|
418 if (!passcount && ignored_extension_p)
|
|
|
419 continue;
|
|
|
420
|
|
814
|
421 if (!passcount && regexp_ignore_completion_p (d_name, Qnil, 0, len))
|
|
428
|
422 continue;
|
|
|
423
|
|
|
424 /* Update computation of how much all possible completions match */
|
|
|
425 matchcount++;
|
|
|
426
|
|
|
427 if (all_flag || NILP (bestmatch))
|
|
|
428 {
|
|
|
429 Lisp_Object name = Qnil;
|
|
|
430 struct gcpro ngcpro1;
|
|
|
431 NGCPRO1 (name);
|
|
|
432 /* This is a possible completion */
|
|
|
433 name = make_string (d_name, len);
|
|
|
434 if (directoryp) /* Completion is a directory; end it with '/' */
|
|
|
435 name = Ffile_name_as_directory (name);
|
|
|
436 if (all_flag)
|
|
|
437 {
|
|
|
438 bestmatch = Fcons (name, bestmatch);
|
|
|
439 }
|
|
|
440 else
|
|
|
441 {
|
|
|
442 bestmatch = name;
|
|
826
|
443 bestmatchsize = string_char_length (name);
|
|
428
|
444 }
|
|
|
445 NUNGCPRO;
|
|
|
446 }
|
|
|
447 else
|
|
|
448 {
|
|
|
449 Charcount compare = min (bestmatchsize, cclen);
|
|
665
|
450 Intbyte *p1 = XSTRING_DATA (bestmatch);
|
|
|
451 Intbyte *p2 = d_name;
|
|
428
|
452 Charcount matchsize = scmp (p1, p2, compare);
|
|
|
453
|
|
|
454 if (matchsize < 0)
|
|
|
455 matchsize = compare;
|
|
|
456 if (completion_ignore_case)
|
|
|
457 {
|
|
|
458 /* If this is an exact match except for case,
|
|
|
459 use it as the best match rather than one that is not
|
|
|
460 an exact match. This way, we get the case pattern
|
|
|
461 of the actual match. */
|
|
|
462 if ((matchsize == cclen
|
|
|
463 && matchsize + !!directoryp
|
|
826
|
464 < string_char_length (bestmatch))
|
|
428
|
465 ||
|
|
|
466 /* If there is no exact match ignoring case,
|
|
|
467 prefer a match that does not change the case
|
|
|
468 of the input. */
|
|
|
469 (((matchsize == cclen)
|
|
|
470 ==
|
|
|
471 (matchsize + !!directoryp
|
|
826
|
472 == string_char_length (bestmatch)))
|
|
428
|
473 /* If there is more than one exact match aside from
|
|
|
474 case, and one of them is exact including case,
|
|
|
475 prefer that one. */
|
|
|
476 && 0 > scmp_1 (p2, XSTRING_DATA (file),
|
|
|
477 file_name_length, 0)
|
|
|
478 && 0 <= scmp_1 (p1, XSTRING_DATA (file),
|
|
|
479 file_name_length, 0)))
|
|
|
480 {
|
|
|
481 bestmatch = make_string (d_name, len);
|
|
|
482 if (directoryp)
|
|
|
483 bestmatch = Ffile_name_as_directory (bestmatch);
|
|
|
484 }
|
|
|
485 }
|
|
|
486
|
|
|
487 /* If this directory all matches,
|
|
|
488 see if implicit following slash does too. */
|
|
|
489 if (directoryp
|
|
|
490 && compare == matchsize
|
|
|
491 && bestmatchsize > matchsize
|
|
|
492 && IS_ANY_SEP (charptr_emchar_n (p1, matchsize)))
|
|
|
493 matchsize++;
|
|
|
494 bestmatchsize = matchsize;
|
|
|
495 }
|
|
|
496 }
|
|
771
|
497 qxe_closedir (d);
|
|
428
|
498 free_opaque_ptr (XCAR (locative));
|
|
|
499 XCAR (locative) = Qnil;
|
|
|
500 }
|
|
|
501
|
|
771
|
502 unbind_to (speccount);
|
|
428
|
503
|
|
|
504 UNGCPRO;
|
|
|
505
|
|
|
506 if (all_flag || NILP (bestmatch))
|
|
|
507 return bestmatch;
|
|
|
508 if (matchcount == 1 && bestmatchsize == file_name_length)
|
|
|
509 return Qt;
|
|
|
510 return Fsubstring (bestmatch, Qzero, make_int (bestmatchsize));
|
|
|
511 }
|
|
|
512
|
|
|
513
|
|
|
514 static Lisp_Object user_name_completion (Lisp_Object user,
|
|
|
515 int all_flag,
|
|
|
516 int *uniq);
|
|
|
517
|
|
|
518 DEFUN ("user-name-completion", Fuser_name_completion, 1, 1, 0, /*
|
|
444
|
519 Complete user name from PARTIAL-USERNAME.
|
|
|
520 Return the longest prefix common to all user names starting with
|
|
|
521 PARTIAL-USERNAME. If there is only one and PARTIAL-USERNAME matches
|
|
|
522 it exactly, returns t. Return nil if there is no user name starting
|
|
|
523 with PARTIAL-USERNAME.
|
|
428
|
524 */
|
|
444
|
525 (partial_username))
|
|
428
|
526 {
|
|
444
|
527 return user_name_completion (partial_username, 0, NULL);
|
|
428
|
528 }
|
|
|
529
|
|
|
530 DEFUN ("user-name-completion-1", Fuser_name_completion_1, 1, 1, 0, /*
|
|
444
|
531 Complete user name from PARTIAL-USERNAME.
|
|
428
|
532
|
|
|
533 This function is identical to `user-name-completion', except that
|
|
|
534 the cons of the completion and an indication of whether the
|
|
|
535 completion was unique is returned.
|
|
|
536
|
|
444
|
537 The car of the returned value is the longest prefix common to all user
|
|
|
538 names that start with PARTIAL-USERNAME. If there is only one and
|
|
|
539 PARTIAL-USERNAME matches it exactly, the car is t. The car is nil if
|
|
|
540 there is no user name starting with PARTIAL-USERNAME. The cdr of the
|
|
|
541 result is non-nil if and only if the completion returned in the car
|
|
|
542 was unique.
|
|
428
|
543 */
|
|
444
|
544 (partial_username))
|
|
428
|
545 {
|
|
|
546 int uniq;
|
|
444
|
547 Lisp_Object completed = user_name_completion (partial_username, 0, &uniq);
|
|
428
|
548 return Fcons (completed, uniq ? Qt : Qnil);
|
|
|
549 }
|
|
|
550
|
|
|
551 DEFUN ("user-name-all-completions", Fuser_name_all_completions, 1, 1, 0, /*
|
|
444
|
552 Return a list of all user name completions from PARTIAL-USERNAME.
|
|
|
553 These are all the user names which begin with PARTIAL-USERNAME.
|
|
428
|
554 */
|
|
444
|
555 (partial_username))
|
|
428
|
556 {
|
|
444
|
557 return user_name_completion (partial_username, 1, NULL);
|
|
428
|
558 }
|
|
|
559
|
|
440
|
560 struct user_name
|
|
|
561 {
|
|
665
|
562 Intbyte *ptr;
|
|
647
|
563 Bytecount len;
|
|
440
|
564 };
|
|
|
565
|
|
|
566 struct user_cache
|
|
|
567 {
|
|
|
568 struct user_name *user_names;
|
|
428
|
569 int length;
|
|
|
570 int size;
|
|
|
571 EMACS_TIME last_rebuild_time;
|
|
|
572 };
|
|
|
573 static struct user_cache user_cache;
|
|
|
574
|
|
|
575 static void
|
|
|
576 free_user_cache (struct user_cache *cache)
|
|
|
577 {
|
|
|
578 int i;
|
|
|
579 for (i = 0; i < cache->length; i++)
|
|
440
|
580 xfree (cache->user_names[i].ptr);
|
|
|
581 xfree (cache->user_names);
|
|
|
582 xzero (*cache);
|
|
428
|
583 }
|
|
|
584
|
|
|
585 static Lisp_Object
|
|
440
|
586 user_name_completion_unwind (Lisp_Object cache_incomplete_p)
|
|
428
|
587 {
|
|
528
|
588 #ifndef WIN32_NATIVE
|
|
440
|
589 endpwent ();
|
|
|
590 speed_up_interrupts ();
|
|
528
|
591 #endif
|
|
428
|
592
|
|
440
|
593 if (! NILP (XCAR (cache_incomplete_p)))
|
|
|
594 free_user_cache (&user_cache);
|
|
|
595
|
|
|
596 free_cons (XCONS (cache_incomplete_p));
|
|
428
|
597
|
|
|
598 return Qnil;
|
|
|
599 }
|
|
|
600
|
|
440
|
601 #define USER_CACHE_TTL (24*60*60) /* Time to live: 1 day, in seconds */
|
|
428
|
602
|
|
|
603 static Lisp_Object
|
|
|
604 user_name_completion (Lisp_Object user, int all_flag, int *uniq)
|
|
|
605 {
|
|
|
606 /* This function can GC */
|
|
|
607 int matchcount = 0;
|
|
|
608 Lisp_Object bestmatch = Qnil;
|
|
|
609 Charcount bestmatchsize = 0;
|
|
|
610 Charcount user_name_length;
|
|
|
611 EMACS_TIME t;
|
|
|
612 int i;
|
|
|
613 struct gcpro gcpro1, gcpro2;
|
|
|
614
|
|
|
615 GCPRO2 (user, bestmatch);
|
|
|
616
|
|
|
617 CHECK_STRING (user);
|
|
|
618
|
|
826
|
619 user_name_length = string_char_length (user);
|
|
428
|
620
|
|
|
621 /* Cache user name lookups because it tends to be quite slow.
|
|
|
622 * Rebuild the cache occasionally to catch changes */
|
|
|
623 EMACS_GET_TIME (t);
|
|
440
|
624 if (user_cache.user_names &&
|
|
428
|
625 (EMACS_SECS (t) - EMACS_SECS (user_cache.last_rebuild_time)
|
|
440
|
626 > USER_CACHE_TTL))
|
|
|
627 free_user_cache (&user_cache);
|
|
428
|
628
|
|
440
|
629 if (!user_cache.user_names)
|
|
428
|
630 {
|
|
528
|
631 #ifndef WIN32_NATIVE
|
|
428
|
632 struct passwd *pwd;
|
|
528
|
633 #else
|
|
|
634 DWORD entriesread;
|
|
|
635 DWORD totalentries;
|
|
|
636 DWORD resume_handle = 0;
|
|
|
637 #endif
|
|
|
638
|
|
440
|
639 Lisp_Object cache_incomplete_p = noseeum_cons (Qt, Qnil);
|
|
|
640 int speccount = specpdl_depth ();
|
|
|
641
|
|
528
|
642 record_unwind_protect (user_name_completion_unwind, cache_incomplete_p);
|
|
|
643 #ifndef WIN32_NATIVE
|
|
428
|
644 slow_down_interrupts ();
|
|
|
645 setpwent ();
|
|
771
|
646 while ((pwd = qxe_getpwent ()))
|
|
428
|
647 {
|
|
|
648 QUIT;
|
|
440
|
649 DO_REALLOC (user_cache.user_names, user_cache.size,
|
|
|
650 user_cache.length + 1, struct user_name);
|
|
771
|
651 user_cache.user_names[user_cache.length].ptr =
|
|
|
652 (Intbyte *) xstrdup (pwd->pw_name);
|
|
|
653 user_cache.user_names[user_cache.length].len = strlen (pwd->pw_name);
|
|
440
|
654 user_cache.length++;
|
|
428
|
655 }
|
|
528
|
656 #else
|
|
531
|
657 if (xNetUserEnum)
|
|
528
|
658 {
|
|
531
|
659 do
|
|
528
|
660 {
|
|
531
|
661 USER_INFO_0 *bufptr;
|
|
|
662 NET_API_STATUS status_status_statui_statum_statu;
|
|
|
663 int i;
|
|
|
664
|
|
|
665 QUIT;
|
|
|
666 status_status_statui_statum_statu =
|
|
|
667 xNetUserEnum (NULL, 0, 0, (LPBYTE *) &bufptr, 1024,
|
|
|
668 &entriesread, &totalentries, &resume_handle);
|
|
|
669 if (status_status_statui_statum_statu != NERR_Success &&
|
|
|
670 status_status_statui_statum_statu != ERROR_MORE_DATA)
|
|
|
671 invalid_operation ("Error enumerating users",
|
|
|
672 make_int (GetLastError ()));
|
|
647
|
673 for (i = 0; i < (int) entriesread; i++)
|
|
531
|
674 {
|
|
|
675 DO_REALLOC (user_cache.user_names, user_cache.size,
|
|
|
676 user_cache.length + 1, struct user_name);
|
|
771
|
677 TO_INTERNAL_FORMAT (C_STRING,
|
|
|
678 bufptr[i].usri0_name,
|
|
531
|
679 MALLOC,
|
|
|
680 (user_cache.
|
|
|
681 user_names[user_cache.length].ptr,
|
|
|
682 user_cache.
|
|
|
683 user_names[user_cache.length].len),
|
|
771
|
684 Qmswindows_unicode);
|
|
531
|
685 user_cache.length++;
|
|
|
686 }
|
|
|
687 xNetApiBufferFree (bufptr);
|
|
528
|
688 }
|
|
531
|
689 while (entriesread != totalentries);
|
|
528
|
690 }
|
|
546
|
691 else /* Win 9x */
|
|
|
692 {
|
|
|
693 Extbyte name[2 * (UNLEN + 1)];
|
|
|
694 DWORD length = sizeof (name);
|
|
|
695
|
|
771
|
696 if (qxeGetUserName (name, &length))
|
|
546
|
697 {
|
|
|
698 DO_REALLOC (user_cache.user_names, user_cache.size,
|
|
|
699 user_cache.length + 1, struct user_name);
|
|
|
700 TO_INTERNAL_FORMAT (C_STRING, name,
|
|
|
701 MALLOC,
|
|
|
702 (user_cache.
|
|
|
703 user_names[user_cache.length].ptr,
|
|
|
704 user_cache.
|
|
|
705 user_names[user_cache.length].len),
|
|
|
706 Qmswindows_tstr);
|
|
|
707 user_cache.length++;
|
|
|
708 }
|
|
|
709 }
|
|
528
|
710 #endif
|
|
|
711
|
|
440
|
712 XCAR (cache_incomplete_p) = Qnil;
|
|
771
|
713 unbind_to (speccount);
|
|
440
|
714
|
|
428
|
715 EMACS_GET_TIME (user_cache.last_rebuild_time);
|
|
|
716 }
|
|
|
717
|
|
|
718 for (i = 0; i < user_cache.length; i++)
|
|
|
719 {
|
|
665
|
720 Intbyte *u_name = user_cache.user_names[i].ptr;
|
|
440
|
721 Bytecount len = user_cache.user_names[i].len;
|
|
428
|
722 /* scmp() works in chars, not bytes, so we have to compute this: */
|
|
|
723 Charcount cclen = bytecount_to_charcount (u_name, len);
|
|
|
724
|
|
|
725 QUIT;
|
|
|
726
|
|
|
727 if (cclen < user_name_length
|
|
|
728 || 0 <= scmp_1 (u_name, XSTRING_DATA (user), user_name_length, 0))
|
|
|
729 continue;
|
|
|
730
|
|
|
731 matchcount++; /* count matching completions */
|
|
|
732
|
|
|
733 if (all_flag || NILP (bestmatch))
|
|
|
734 {
|
|
|
735 Lisp_Object name = Qnil;
|
|
|
736 struct gcpro ngcpro1;
|
|
|
737 NGCPRO1 (name);
|
|
|
738 /* This is a possible completion */
|
|
|
739 name = make_string (u_name, len);
|
|
|
740 if (all_flag)
|
|
|
741 {
|
|
|
742 bestmatch = Fcons (name, bestmatch);
|
|
|
743 }
|
|
|
744 else
|
|
|
745 {
|
|
|
746 bestmatch = name;
|
|
826
|
747 bestmatchsize = string_char_length (name);
|
|
428
|
748 }
|
|
|
749 NUNGCPRO;
|
|
|
750 }
|
|
|
751 else
|
|
|
752 {
|
|
|
753 Charcount compare = min (bestmatchsize, cclen);
|
|
665
|
754 Intbyte *p1 = XSTRING_DATA (bestmatch);
|
|
|
755 Intbyte *p2 = u_name;
|
|
428
|
756 Charcount matchsize = scmp_1 (p1, p2, compare, 0);
|
|
|
757
|
|
|
758 if (matchsize < 0)
|
|
|
759 matchsize = compare;
|
|
|
760
|
|
|
761 bestmatchsize = matchsize;
|
|
|
762 }
|
|
|
763 }
|
|
|
764
|
|
|
765 UNGCPRO;
|
|
|
766
|
|
|
767 if (uniq)
|
|
|
768 *uniq = (matchcount == 1);
|
|
|
769
|
|
|
770 if (all_flag || NILP (bestmatch))
|
|
|
771 return bestmatch;
|
|
|
772 if (matchcount == 1 && bestmatchsize == user_name_length)
|
|
|
773 return Qt;
|
|
|
774 return Fsubstring (bestmatch, Qzero, make_int (bestmatchsize));
|
|
|
775 }
|
|
|
776
|
|
|
777
|
|
|
778 Lisp_Object
|
|
771
|
779 make_directory_hash_table (const Intbyte *path)
|
|
428
|
780 {
|
|
|
781 DIR *d;
|
|
771
|
782 if ((d = qxe_opendir (path)))
|
|
428
|
783 {
|
|
|
784 DIRENTRY *dp;
|
|
|
785 Lisp_Object hash =
|
|
|
786 make_lisp_hash_table (20, HASH_TABLE_NON_WEAK, HASH_TABLE_EQUAL);
|
|
|
787
|
|
771
|
788 while ((dp = qxe_readdir (d)))
|
|
428
|
789 {
|
|
|
790 Bytecount len = NAMLEN (dp);
|
|
|
791 if (DIRENTRY_NONEMPTY (dp))
|
|
771
|
792 /* Cast to Intbyte* is OK, as qxe_readdir() Mule-encapsulates. */
|
|
665
|
793 Fputhash (make_string ((Intbyte *) dp->d_name, len), Qt, hash);
|
|
428
|
794 }
|
|
771
|
795 qxe_closedir (d);
|
|
428
|
796 return hash;
|
|
|
797 }
|
|
|
798 else
|
|
|
799 return Qnil;
|
|
|
800 }
|
|
|
801
|
|
707
|
802 #if 0
|
|
|
803 /* ... never used ... should use list2 directly anyway ... */
|
|
|
804 /* NOTE: This function can never return a negative value. */
|
|
428
|
805 Lisp_Object
|
|
|
806 wasteful_word_to_lisp (unsigned int item)
|
|
|
807 {
|
|
|
808 /* Compatibility: in other versions, file-attributes returns a LIST
|
|
|
809 of two 16 bit integers... */
|
|
|
810 Lisp_Object cons = word_to_lisp (item);
|
|
|
811 XCDR (cons) = Fcons (XCDR (cons), Qnil);
|
|
|
812 return cons;
|
|
|
813 }
|
|
707
|
814 #endif
|
|
428
|
815
|
|
|
816 DEFUN ("file-attributes", Ffile_attributes, 1, 1, 0, /*
|
|
|
817 Return a list of attributes of file FILENAME.
|
|
|
818 Value is nil if specified file cannot be opened.
|
|
|
819 Otherwise, list elements are:
|
|
|
820 0. t for directory, string (name linked to) for symbolic link, or nil.
|
|
|
821 1. Number of links to file.
|
|
|
822 2. File uid.
|
|
|
823 3. File gid.
|
|
|
824 4. Last access time, as a list of two integers.
|
|
|
825 First integer has high-order 16 bits of time, second has low 16 bits.
|
|
|
826 5. Last modification time, likewise.
|
|
|
827 6. Last status change time, likewise.
|
|
|
828 7. Size in bytes. (-1, if number is out of range).
|
|
|
829 8. File modes, as a string of ten letters or dashes as in ls -l.
|
|
|
830 9. t iff file's gid would change if file were deleted and recreated.
|
|
|
831 10. inode number.
|
|
|
832 11. Device number.
|
|
|
833
|
|
|
834 If file does not exist, returns nil.
|
|
|
835 */
|
|
|
836 (filename))
|
|
|
837 {
|
|
|
838 /* This function can GC. GC checked 1997.06.04. */
|
|
|
839 Lisp_Object values[12];
|
|
|
840 Lisp_Object directory = Qnil;
|
|
|
841 struct stat s;
|
|
|
842 char modes[10];
|
|
|
843 Lisp_Object handler;
|
|
|
844 struct gcpro gcpro1, gcpro2;
|
|
|
845
|
|
|
846 GCPRO2 (filename, directory);
|
|
|
847 filename = Fexpand_file_name (filename, Qnil);
|
|
|
848
|
|
|
849 /* If the file name has special constructs in it,
|
|
|
850 call the corresponding file handler. */
|
|
|
851 handler = Ffind_file_name_handler (filename, Qfile_attributes);
|
|
|
852 if (!NILP (handler))
|
|
|
853 {
|
|
|
854 UNGCPRO;
|
|
|
855 return call2 (handler, Qfile_attributes, filename);
|
|
|
856 }
|
|
|
857
|
|
771
|
858 if (qxe_lstat (XSTRING_DATA (filename), &s) < 0)
|
|
428
|
859 {
|
|
|
860 UNGCPRO;
|
|
|
861 return Qnil;
|
|
|
862 }
|
|
|
863
|
|
|
864 #ifdef BSD4_2
|
|
|
865 directory = Ffile_name_directory (filename);
|
|
|
866 #endif
|
|
|
867
|
|
442
|
868 #if 0 /* #### shouldn't this apply to WIN32_NATIVE and maybe CYGWIN? */
|
|
428
|
869 {
|
|
771
|
870 Intbyte *tmpnam = XSTRING_DATA (Ffile_name_nondirectory (filename));
|
|
|
871 Bytecount l = qxestrlen (tmpnam);
|
|
428
|
872
|
|
|
873 if (l >= 5
|
|
|
874 && S_ISREG (s.st_mode)
|
|
771
|
875 && (qxestrcasecmp (&tmpnam[l - 4], ".com") == 0 ||
|
|
|
876 qxestrcasecmp (&tmpnam[l - 4], ".exe") == 0 ||
|
|
|
877 qxestrcasecmp (&tmpnam[l - 4], ".bat") == 0))
|
|
428
|
878 {
|
|
|
879 s.st_mode |= S_IEXEC;
|
|
|
880 }
|
|
|
881 }
|
|
442
|
882 #endif
|
|
428
|
883
|
|
|
884 switch (s.st_mode & S_IFMT)
|
|
|
885 {
|
|
|
886 default:
|
|
|
887 values[0] = Qnil;
|
|
|
888 break;
|
|
|
889 case S_IFDIR:
|
|
|
890 values[0] = Qt;
|
|
|
891 break;
|
|
|
892 #ifdef S_IFLNK
|
|
|
893 case S_IFLNK:
|
|
|
894 values[0] = Ffile_symlink_p (filename);
|
|
|
895 break;
|
|
|
896 #endif
|
|
|
897 }
|
|
|
898 values[1] = make_int (s.st_nlink);
|
|
|
899 values[2] = make_int (s.st_uid);
|
|
|
900 values[3] = make_int (s.st_gid);
|
|
707
|
901 values[4] = make_time (s.st_atime);
|
|
|
902 values[5] = make_time (s.st_mtime);
|
|
|
903 values[6] = make_time (s.st_ctime);
|
|
428
|
904 values[7] = make_int ((EMACS_INT) s.st_size);
|
|
|
905 /* If the size is out of range, give back -1. */
|
|
|
906 /* #### Fix when Emacs gets bignums! */
|
|
|
907 if (XINT (values[7]) != s.st_size)
|
|
|
908 values[7] = make_int (-1);
|
|
|
909 filemodestring (&s, modes);
|
|
665
|
910 values[8] = make_string ((Intbyte *) modes, 10);
|
|
428
|
911 #if defined (BSD4_2) || defined (BSD4_3) /* file gid will be dir gid */
|
|
|
912 {
|
|
|
913 struct stat sdir;
|
|
|
914
|
|
771
|
915 if (!NILP (directory) && qxe_stat (XSTRING_DATA (directory), &sdir) == 0)
|
|
428
|
916 values[9] = (sdir.st_gid != s.st_gid) ? Qt : Qnil;
|
|
|
917 else /* if we can't tell, assume worst */
|
|
|
918 values[9] = Qt;
|
|
|
919 }
|
|
|
920 #else /* file gid will be egid */
|
|
|
921 values[9] = (s.st_gid != getegid ()) ? Qt : Qnil;
|
|
|
922 #endif /* BSD4_2 or BSD4_3 */
|
|
|
923 values[10] = make_int (s.st_ino);
|
|
|
924 values[11] = make_int (s.st_dev);
|
|
|
925 UNGCPRO;
|
|
|
926 return Flist (countof (values), values);
|
|
|
927 }
|
|
|
928
|
|
|
929
|
|
|
930 /************************************************************************/
|
|
|
931 /* initialization */
|
|
|
932 /************************************************************************/
|
|
|
933
|
|
|
934 void
|
|
|
935 syms_of_dired (void)
|
|
|
936 {
|
|
563
|
937 DEFSYMBOL (Qdirectory_files);
|
|
|
938 DEFSYMBOL (Qfile_name_completion);
|
|
|
939 DEFSYMBOL (Qfile_name_all_completions);
|
|
|
940 DEFSYMBOL (Qfile_attributes);
|
|
428
|
941
|
|
|
942 DEFSUBR (Fdirectory_files);
|
|
|
943 DEFSUBR (Ffile_name_completion);
|
|
|
944 DEFSUBR (Ffile_name_all_completions);
|
|
|
945 DEFSUBR (Fuser_name_completion);
|
|
|
946 DEFSUBR (Fuser_name_completion_1);
|
|
|
947 DEFSUBR (Fuser_name_all_completions);
|
|
|
948 DEFSUBR (Ffile_attributes);
|
|
|
949 }
|
|
|
950
|
|
|
951 void
|
|
|
952 vars_of_dired (void)
|
|
|
953 {
|
|
|
954 DEFVAR_LISP ("completion-ignored-extensions", &Vcompletion_ignored_extensions /*
|
|
|
955 *Completion ignores filenames ending in any string in this list.
|
|
|
956 This variable does not affect lists of possible completions,
|
|
|
957 but does affect the commands that actually do completions.
|
|
770
|
958 It is used by the function `file-name-completion'.
|
|
428
|
959 */ );
|
|
|
960 Vcompletion_ignored_extensions = Qnil;
|
|
|
961 }
|
