|
428
|
1 /* Record indices of function doc strings stored in a file.
|
|
|
2 Copyright (C) 1985, 1986, 1992, 1993, 1994, 1995
|
|
|
3 Free Software Foundation, Inc.
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|
|
4
|
|
|
5 This file is part of XEmacs.
|
|
|
6
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|
|
7 XEmacs is free software; you can redistribute it and/or modify it
|
|
|
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
|
|
|
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
|
|
|
22 /* Synched up with: FSF 19.30. */
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|
|
23
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|
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24 /* This file has been Mule-ized except as noted. */
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25
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|
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26 #include <config.h>
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|
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27 #include "lisp.h"
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|
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28
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|
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29 #include "buffer.h"
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30 #include "bytecode.h"
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|
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31 #include "insdel.h"
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|
32 #include "keymap.h"
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33 #include "sysfile.h"
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34
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|
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35 Lisp_Object Vinternal_doc_file_name;
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|
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36
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|
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37 Lisp_Object QSsubstitute;
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38
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39 /* Read and return doc string from open file descriptor FD
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|
40 at position POSITION. Does not close the file. Returns
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41 string; or if error, returns a cons holding the error
|
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42 data to pass to Fsignal. NAME_NONRELOC and NAME_RELOC
|
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|
43 are only used for the error messages. */
|
|
|
44
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|
|
45 Lisp_Object
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46 unparesseuxify_doc_string (int fd, EMACS_INT position,
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47 char *name_nonreloc, Lisp_Object name_reloc)
|
|
|
48 {
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|
|
49 char buf[512 * 32 + 1];
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|
|
50 char *buffer = buf;
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|
|
51 int buffer_size = sizeof (buf);
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|
|
52 char *from, *to;
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|
|
53 REGISTER char *p = buffer;
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|
|
54 Lisp_Object return_me;
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|
55
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|
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56 if (0 > lseek (fd, position, 0))
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|
|
57 {
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|
|
58 if (name_nonreloc)
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|
59 name_reloc = build_string (name_nonreloc);
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|
60 return_me = list3 (build_string
|
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|
61 ("Position out of range in doc string file"),
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62 name_reloc, make_int (position));
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63 goto done;
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|
|
64 }
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|
65
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66 /* Read the doc string into a buffer.
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67 Use the fixed buffer BUF if it is big enough; otherwise allocate one.
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68 We store the buffer in use in BUFFER and its size in BUFFER_SIZE. */
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69
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|
|
70 while (1)
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|
|
71 {
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|
72 int space_left = buffer_size - (p - buffer);
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|
|
73 int nread;
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74
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|
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75 /* Switch to a bigger buffer if we need one. */
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|
|
76 if (space_left == 0)
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|
|
77 {
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|
|
78 char * old_buffer = buffer;
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|
|
79 if (buffer == buf) {
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|
|
80 buffer = (char *) xmalloc (buffer_size *= 2);
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|
81 memcpy (buffer, old_buffer, p - old_buffer);
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|
|
82 } else {
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|
83 buffer = (char *) xrealloc (buffer, buffer_size *= 2);
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|
|
84 }
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|
|
85 p += buffer - old_buffer;
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|
|
86 space_left = buffer_size - (p - buffer);
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|
|
87 }
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|
|
88
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|
|
89 /* Don't read too much at one go. */
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|
90 if (space_left > 1024 * 8)
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|
91 space_left = 1024 * 8;
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|
|
92 nread = read (fd, p, space_left);
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|
|
93 if (nread < 0)
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|
|
94 {
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|
|
95 return_me = list1 (build_string
|
|
|
96 ("Read error on documentation file"));
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|
|
97 goto done;
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|
|
98 }
|
|
|
99 p[nread] = 0;
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|
|
100 if (!nread)
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|
101 break;
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|
102 {
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|
103 char *p1 = strchr (p, '\037'); /* End of doc string marker */
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|
104 if (p1)
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|
|
105 {
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|
|
106 *p1 = 0;
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|
|
107 p = p1;
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|
|
108 break;
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|
|
109 }
|
|
|
110 }
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|
|
111 p += nread;
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|
|
112 }
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|
|
113
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|
|
114 /* Scan the text and remove quoting with ^A (char code 1).
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|
115 ^A^A becomes ^A, ^A0 becomes a null char, and ^A_ becomes a ^_. */
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|
|
116 from = to = buffer;
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|
|
117 while (from < p)
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|
|
118 {
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|
|
119 if (*from != 1 /*^A*/)
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|
|
120 *to++ = *from++;
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|
|
121 else
|
|
|
122 {
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|
|
123 int c = *(++from);
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|
|
124
|
|
|
125 from++;
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|
|
126 switch (c)
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|
|
127 {
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|
|
128 case 1: *to++ = c; break;
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|
|
129 case '0': *to++ = '\0'; break;
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|
130 case '_': *to++ = '\037'; break;
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|
131 default:
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|
132 return_me = list2 (build_string
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|
|
133 ("Invalid data in documentation file -- ^A followed by weird code"),
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|
|
134 make_int (c));
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|
|
135 goto done;
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|
|
136 }
|
|
|
137 }
|
|
|
138 }
|
|
|
139
|
|
|
140 /* #### mrb: following STILL completely broken */
|
|
444
|
141 return_me = make_ext_string (buffer, to - buffer, Qbinary);
|
|
428
|
142
|
|
|
143 done:
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|
|
144 if (buffer != buf) /* We must have allocated buffer above */
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|
|
145 xfree (buffer);
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|
|
146 return return_me;
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|
|
147 }
|
|
|
148
|
|
|
149 #define string_join(dest, s1, s2) \
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|
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150 memcpy ((void *) dest, (void *) XSTRING_DATA (s1), XSTRING_LENGTH (s1)); \
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|
|
151 memcpy ((void *) ((Bufbyte *) dest + XSTRING_LENGTH (s1)), \
|
|
|
152 (void *) XSTRING_DATA (s2), XSTRING_LENGTH (s2)); \
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|
|
153 dest[XSTRING_LENGTH (s1) + XSTRING_LENGTH (s2)] = '\0'
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154
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|
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155 /* Extract a doc string from a file. FILEPOS says where to get it.
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156 (This could actually be byte code instructions/constants instead
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157 of a doc string.)
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|
158 If it is an integer, use that position in the standard DOC file.
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|
|
159 If it is (FILE . INTEGER), use FILE as the file name
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160 and INTEGER as the position in that file.
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|
161 But if INTEGER is negative, make it positive.
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|
162 (A negative integer is used for user variables, so we can distinguish
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|
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163 them without actually fetching the doc string.) */
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164
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|
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165 static Lisp_Object
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166 get_doc_string (Lisp_Object filepos)
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167 {
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|
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168 /* !!#### This function has not been Mule-ized */
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|
169 REGISTER int fd;
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|
170 REGISTER char *name_nonreloc = 0;
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|
|
171 int minsize;
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|
|
172 EMACS_INT position;
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|
|
173 Lisp_Object file, tem;
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|
174 Lisp_Object name_reloc = Qnil;
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175
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176 if (INTP (filepos))
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177 {
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|
178 file = Vinternal_doc_file_name;
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|
|
179 position = XINT (filepos);
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|
|
180 }
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|
|
181 else if (CONSP (filepos) && INTP (XCDR (filepos)))
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|
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182 {
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|
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183 file = XCAR (filepos);
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|
|
184 position = XINT (XCDR (filepos));
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|
|
185 if (position < 0)
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186 position = - position;
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|
|
187 }
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|
|
188 else
|
|
|
189 return Qnil;
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|
|
190
|
|
|
191 if (!STRINGP (file))
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|
|
192 return Qnil;
|
|
|
193
|
|
|
194 /* Put the file name in NAME as a C string.
|
|
|
195 If it is relative, combine it with Vdoc_directory. */
|
|
|
196
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|
|
197 tem = Ffile_name_absolute_p (file);
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|
|
198 if (NILP (tem))
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|
|
199 {
|
|
|
200 /* XEmacs: Move this check here. OK if called during loadup to
|
|
|
201 load byte code instructions. */
|
|
|
202 if (!STRINGP (Vdoc_directory))
|
|
|
203 return Qnil;
|
|
|
204
|
|
|
205 minsize = XSTRING_LENGTH (Vdoc_directory);
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|
|
206 /* sizeof ("../lib-src/") == 12 */
|
|
|
207 if (minsize < 12)
|
|
|
208 minsize = 12;
|
|
|
209 name_nonreloc = (char *) alloca (minsize + XSTRING_LENGTH (file) + 8);
|
|
|
210 string_join (name_nonreloc, Vdoc_directory, file);
|
|
|
211 }
|
|
|
212 else
|
|
|
213 name_reloc = file;
|
|
|
214
|
|
|
215 fd = open (name_nonreloc ? name_nonreloc :
|
|
|
216 (char *) XSTRING_DATA (name_reloc), O_RDONLY | OPEN_BINARY, 0);
|
|
|
217 if (fd < 0)
|
|
|
218 {
|
|
|
219 #ifndef CANNOT_DUMP
|
|
|
220 if (purify_flag)
|
|
|
221 {
|
|
|
222 /* sizeof ("../lib-src/") == 12 */
|
|
|
223 name_nonreloc = (char *) alloca (12 + XSTRING_LENGTH (file) + 8);
|
|
|
224 /* Preparing to dump; DOC file is probably not installed.
|
|
|
225 So check in ../lib-src. */
|
|
|
226 strcpy (name_nonreloc, "../lib-src/");
|
|
|
227 strcat (name_nonreloc, (char *) XSTRING_DATA (file));
|
|
|
228
|
|
|
229 fd = open (name_nonreloc, O_RDONLY | OPEN_BINARY, 0);
|
|
|
230 }
|
|
|
231 #endif /* CANNOT_DUMP */
|
|
|
232
|
|
|
233 if (fd < 0)
|
|
|
234 error ("Cannot open doc string file \"%s\"",
|
|
|
235 name_nonreloc ? name_nonreloc :
|
|
|
236 (char *) XSTRING_DATA (name_reloc));
|
|
|
237 }
|
|
|
238
|
|
|
239 tem = unparesseuxify_doc_string (fd, position, name_nonreloc, name_reloc);
|
|
|
240 close (fd);
|
|
|
241
|
|
|
242 if (!STRINGP (tem))
|
|
|
243 signal_error (Qerror, tem);
|
|
|
244
|
|
|
245 return tem;
|
|
|
246 }
|
|
|
247
|
|
|
248 /* Get a string from position FILEPOS and pass it through the Lisp reader.
|
|
|
249 We use this for fetching the bytecode string and constants vector
|
|
|
250 of a compiled function from the .elc file. */
|
|
|
251
|
|
|
252 Lisp_Object
|
|
|
253 read_doc_string (Lisp_Object filepos)
|
|
|
254 {
|
|
|
255 Lisp_Object string = get_doc_string (filepos);
|
|
|
256
|
|
|
257 if (!STRINGP (string))
|
|
|
258 signal_simple_error ("loading bytecode failed to return string", string);
|
|
|
259 return Fread (string);
|
|
|
260 }
|
|
|
261
|
|
|
262 DEFUN ("documentation", Fdocumentation, 1, 2, 0, /*
|
|
|
263 Return the documentation string of FUNCTION.
|
|
444
|
264 Unless a non-nil second argument RAW is given, the
|
|
428
|
265 string is passed through `substitute-command-keys'.
|
|
|
266 */
|
|
|
267 (function, raw))
|
|
|
268 {
|
|
|
269 /* This function can GC */
|
|
|
270 Lisp_Object fun;
|
|
|
271 Lisp_Object doc;
|
|
|
272
|
|
|
273 fun = Findirect_function (function);
|
|
|
274
|
|
|
275 if (SUBRP (fun))
|
|
|
276 {
|
|
|
277 if (XSUBR (fun)->doc == 0)
|
|
|
278 return Qnil;
|
|
|
279 if ((EMACS_INT) XSUBR (fun)->doc >= 0)
|
|
|
280 doc = build_string (XSUBR (fun)->doc);
|
|
|
281 else
|
|
|
282 doc = get_doc_string (make_int (- (EMACS_INT) XSUBR (fun)->doc));
|
|
|
283 }
|
|
|
284 else if (COMPILED_FUNCTIONP (fun))
|
|
|
285 {
|
|
|
286 Lisp_Object tem;
|
|
440
|
287 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (fun);
|
|
428
|
288 if (! (f->flags.documentationp))
|
|
|
289 return Qnil;
|
|
|
290 tem = compiled_function_documentation (f);
|
|
|
291 if (STRINGP (tem))
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|
|
292 doc = tem;
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|
|
293 else if (NATNUMP (tem) || CONSP (tem))
|
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|
294 doc = get_doc_string (tem);
|
|
|
295 else
|
|
|
296 return Qnil;
|
|
|
297 }
|
|
|
298 else if (KEYMAPP (fun))
|
|
|
299 return build_translated_string ("Prefix command (definition is a keymap of subcommands).");
|
|
|
300 else if (STRINGP (fun) || VECTORP (fun))
|
|
|
301 return build_translated_string ("Keyboard macro.");
|
|
|
302 else if (CONSP (fun))
|
|
|
303 {
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|
|
304 Lisp_Object funcar = Fcar (fun);
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|
|
305
|
|
|
306 if (!SYMBOLP (funcar))
|
|
|
307 return Fsignal (Qinvalid_function, list1 (fun));
|
|
|
308 else if (EQ (funcar, Qlambda)
|
|
|
309 || EQ (funcar, Qautoload))
|
|
|
310 {
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|
|
311 Lisp_Object tem, tem1;
|
|
|
312 tem1 = Fcdr (Fcdr (fun));
|
|
|
313 tem = Fcar (tem1);
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|
|
314 if (STRINGP (tem))
|
|
|
315 doc = tem;
|
|
|
316 /* Handle a doc reference--but these never come last
|
|
|
317 in the function body, so reject them if they are last. */
|
|
|
318 else if ((NATNUMP (tem) || CONSP (tem))
|
|
|
319 && ! NILP (XCDR (tem1)))
|
|
|
320 doc = get_doc_string (tem);
|
|
|
321 else
|
|
|
322 return Qnil;
|
|
|
323 }
|
|
|
324 else if (EQ (funcar, Qmacro))
|
|
|
325 return Fdocumentation (Fcdr (fun), raw);
|
|
|
326 else
|
|
|
327 goto oops;
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|
|
328 }
|
|
|
329 else
|
|
|
330 {
|
|
|
331 oops:
|
|
|
332 return Fsignal (Qinvalid_function, list1 (fun));
|
|
|
333 }
|
|
|
334
|
|
|
335 if (NILP (raw))
|
|
|
336 {
|
|
|
337 struct gcpro gcpro1;
|
|
|
338 #ifdef I18N3
|
|
|
339 Lisp_Object domain = Qnil;
|
|
|
340 if (COMPILED_FUNCTIONP (fun))
|
|
|
341 domain = compiled_function_domain (XCOMPILED_FUNCTION (fun));
|
|
|
342 if (NILP (domain))
|
|
|
343 doc = Fgettext (doc);
|
|
|
344 else
|
|
|
345 doc = Fdgettext (domain, doc);
|
|
|
346 #endif
|
|
|
347
|
|
|
348 GCPRO1 (doc);
|
|
|
349 doc = Fsubstitute_command_keys (doc);
|
|
|
350 UNGCPRO;
|
|
|
351 }
|
|
|
352 return doc;
|
|
|
353 }
|
|
|
354
|
|
|
355 DEFUN ("documentation-property", Fdocumentation_property, 2, 3, 0, /*
|
|
|
356 Return the documentation string that is SYMBOL's PROP property.
|
|
|
357 This is like `get', but it can refer to strings stored in the
|
|
|
358 `doc-directory/DOC' file; and if the value is a string, it is passed
|
|
|
359 through `substitute-command-keys'. A non-nil third argument avoids this
|
|
|
360 translation.
|
|
|
361 */
|
|
444
|
362 (symbol, prop, raw))
|
|
428
|
363 {
|
|
|
364 /* This function can GC */
|
|
|
365 REGISTER Lisp_Object doc = Qnil;
|
|
|
366 #ifdef I18N3
|
|
|
367 REGISTER Lisp_Object domain;
|
|
|
368 #endif
|
|
|
369 struct gcpro gcpro1;
|
|
|
370
|
|
|
371 GCPRO1 (doc);
|
|
|
372
|
|
444
|
373 doc = Fget (symbol, prop, Qnil);
|
|
428
|
374 if (INTP (doc))
|
|
|
375 doc = get_doc_string (XINT (doc) > 0 ? doc : make_int (- XINT (doc)));
|
|
|
376 else if (CONSP (doc))
|
|
|
377 doc = get_doc_string (doc);
|
|
|
378 #ifdef I18N3
|
|
|
379 if (!NILP (doc))
|
|
|
380 {
|
|
444
|
381 domain = Fget (symbol, Qvariable_domain, Qnil);
|
|
428
|
382 if (NILP (domain))
|
|
|
383 doc = Fgettext (doc);
|
|
|
384 else
|
|
|
385 doc = Fdgettext (domain, doc);
|
|
|
386 }
|
|
|
387 #endif
|
|
|
388 if (NILP (raw) && STRINGP (doc))
|
|
|
389 doc = Fsubstitute_command_keys (doc);
|
|
|
390 UNGCPRO;
|
|
|
391 return doc;
|
|
|
392 }
|
|
|
393
|
|
|
394 static void
|
|
442
|
395 weird_doc (Lisp_Object sym, const char *weirdness, const char *type, int pos)
|
|
428
|
396 {
|
|
|
397 if (!strcmp (weirdness, GETTEXT ("duplicate"))) return;
|
|
|
398 message ("Note: Strange doc (%s) for %s %s @ %d",
|
|
|
399 weirdness, type, string_data (XSYMBOL (sym)->name), pos);
|
|
|
400 }
|
|
|
401
|
|
|
402
|
|
|
403 DEFUN ("Snarf-documentation", Fsnarf_documentation, 1, 1, 0, /*
|
|
|
404 Used during Emacs initialization, before dumping runnable Emacs,
|
|
|
405 to find pointers to doc strings stored in `.../lib-src/DOC' and
|
|
|
406 record them in function definitions.
|
|
|
407 One arg, FILENAME, a string which does not include a directory.
|
|
|
408 The file is written to `../lib-src', and later found in `exec-directory'
|
|
|
409 when doc strings are referred to in the dumped Emacs.
|
|
|
410 */
|
|
|
411 (filename))
|
|
|
412 {
|
|
|
413 /* !!#### This function has not been Mule-ized */
|
|
|
414 int fd;
|
|
|
415 char buf[1024 + 1];
|
|
|
416 REGISTER int filled;
|
|
|
417 REGISTER int pos;
|
|
|
418 REGISTER char *p, *end;
|
|
|
419 Lisp_Object sym, fun, tem;
|
|
|
420 char *name;
|
|
|
421
|
|
|
422 #ifndef CANNOT_DUMP
|
|
|
423 if (!purify_flag)
|
|
|
424 error ("Snarf-documentation can only be called in an undumped Emacs");
|
|
|
425 #endif
|
|
|
426
|
|
|
427 CHECK_STRING (filename);
|
|
|
428
|
|
|
429 #ifdef CANNOT_DUMP
|
|
|
430 if (!NILP(Vdoc_directory))
|
|
|
431 {
|
|
|
432 CHECK_STRING (Vdoc_directory);
|
|
|
433 name = (char *) alloca (XSTRING_LENGTH (filename)
|
|
|
434 + XSTRING_LENGTH (Vdoc_directory)
|
|
|
435 + 1);
|
|
|
436 strcpy (name, (char *) XSTRING_DATA (Vdoc_directory));
|
|
|
437 }
|
|
|
438 else
|
|
|
439 #endif /* CANNOT_DUMP */
|
|
|
440 {
|
|
|
441 name = (char *) alloca (XSTRING_LENGTH (filename) + 14);
|
|
|
442 strcpy (name, "../lib-src/");
|
|
|
443 }
|
|
|
444
|
|
|
445 strcat (name, (char *) XSTRING_DATA (filename));
|
|
|
446
|
|
|
447 fd = open (name, O_RDONLY | OPEN_BINARY, 0);
|
|
|
448 if (fd < 0)
|
|
|
449 report_file_error ("Opening doc string file",
|
|
|
450 Fcons (build_string (name), Qnil));
|
|
|
451 Vinternal_doc_file_name = filename;
|
|
|
452 filled = 0;
|
|
|
453 pos = 0;
|
|
|
454 while (1)
|
|
|
455 {
|
|
|
456 if (filled < 512)
|
|
|
457 filled += read (fd, &buf[filled], sizeof buf - 1 - filled);
|
|
|
458 if (!filled)
|
|
|
459 break;
|
|
|
460
|
|
|
461 buf[filled] = 0;
|
|
|
462 p = buf;
|
|
|
463 end = buf + (filled < 512 ? filled : filled - 128);
|
|
|
464 while (p != end && *p != '\037') p++;
|
|
|
465 /* p points to ^_Ffunctionname\n or ^_Vvarname\n. */
|
|
|
466 if (p != end)
|
|
|
467 {
|
|
|
468 end = strchr (p, '\n');
|
|
|
469 sym = oblookup (Vobarray, (Bufbyte *) p + 2, end - p - 2);
|
|
|
470 if (SYMBOLP (sym))
|
|
|
471 {
|
|
|
472 Lisp_Object offset = make_int (pos + end + 1 - buf);
|
|
|
473 /* Attach a docstring to a variable */
|
|
|
474 if (p[1] == 'V')
|
|
|
475 {
|
|
|
476 /* Install file-position as variable-documentation property
|
|
|
477 and make it negative for a user-variable
|
|
|
478 (doc starts with a `*'). */
|
|
|
479 Lisp_Object old = Fget (sym, Qvariable_documentation, Qzero);
|
|
|
480 if (!ZEROP (old))
|
|
|
481 {
|
|
|
482 weird_doc (sym, GETTEXT ("duplicate"),
|
|
|
483 GETTEXT ("variable"), pos);
|
|
|
484 /* In the case of duplicate doc file entries, always
|
|
|
485 take the later one. But if the doc is not an int
|
|
|
486 (a string, say) leave it alone. */
|
|
|
487 if (!INTP (old))
|
|
|
488 goto weird;
|
|
|
489 }
|
|
|
490 Fput (sym, Qvariable_documentation,
|
|
|
491 ((end[1] == '*')
|
|
|
492 ? make_int (- XINT (offset))
|
|
|
493 : offset));
|
|
|
494 }
|
|
|
495 /* Attach a docstring to a function.
|
|
|
496 The type determines where the docstring is stored. */
|
|
|
497 else if (p[1] == 'F')
|
|
|
498 {
|
|
|
499 fun = indirect_function (sym,0);
|
|
|
500
|
|
|
501 if (CONSP (fun) && EQ (XCAR (fun), Qmacro))
|
|
|
502 fun = XCDR (fun);
|
|
|
503
|
|
|
504 if (UNBOUNDP (fun))
|
|
|
505 {
|
|
|
506 /* May have been #if'ed out or something */
|
|
|
507 weird_doc (sym, GETTEXT ("not fboundp"),
|
|
|
508 GETTEXT ("function"), pos);
|
|
|
509 goto weird;
|
|
|
510 }
|
|
|
511 else if (SUBRP (fun))
|
|
|
512 {
|
|
|
513 /* Lisp_Subrs have a slot for it. */
|
|
|
514 if (XSUBR (fun)->doc)
|
|
|
515 {
|
|
|
516 weird_doc (sym, GETTEXT ("duplicate"),
|
|
|
517 GETTEXT ("subr"), pos);
|
|
|
518 goto weird;
|
|
|
519 }
|
|
|
520 XSUBR (fun)->doc = (char *) (- XINT (offset));
|
|
|
521 }
|
|
|
522 else if (CONSP (fun))
|
|
|
523 {
|
|
|
524 /* If it's a lisp form, stick it in the form. */
|
|
|
525 tem = XCAR (fun);
|
|
|
526 if (EQ (tem, Qlambda) || EQ (tem, Qautoload))
|
|
|
527 {
|
|
|
528 tem = Fcdr (Fcdr (fun));
|
|
|
529 if (CONSP (tem) &&
|
|
|
530 INTP (XCAR (tem)))
|
|
|
531 {
|
|
|
532 Lisp_Object old = XCAR (tem);
|
|
|
533 if (!ZEROP (old))
|
|
|
534 {
|
|
|
535 weird_doc (sym, GETTEXT ("duplicate"),
|
|
|
536 (EQ (tem, Qlambda)
|
|
|
537 ? GETTEXT ("lambda")
|
|
|
538 : GETTEXT ("autoload")),
|
|
|
539 pos);
|
|
|
540 /* In the case of duplicate doc file entries,
|
|
|
541 always take the later one. But if the doc
|
|
|
542 is not an int (a string, say) leave it
|
|
|
543 alone. */
|
|
|
544 if (!INTP (old))
|
|
|
545 goto weird;
|
|
|
546 }
|
|
|
547 XCAR (tem) = offset;
|
|
|
548 }
|
|
|
549 else if (!CONSP (tem))
|
|
|
550 {
|
|
|
551 weird_doc (sym, GETTEXT ("!CONSP(tem)"),
|
|
|
552 GETTEXT ("function"), pos);
|
|
|
553 goto cont;
|
|
|
554 }
|
|
|
555 else
|
|
|
556 {
|
|
|
557 /* DOC string is a string not integer 0 */
|
|
|
558 #if 0
|
|
|
559 weird_doc (sym, GETTEXT ("!INTP(XCAR(tem))"),
|
|
|
560 GETTEXT ("function"), pos);
|
|
|
561 #endif
|
|
|
562 goto cont;
|
|
|
563 }
|
|
|
564 }
|
|
|
565 else
|
|
|
566 {
|
|
|
567 weird_doc (sym, GETTEXT ("not lambda or autoload"),
|
|
|
568 GETTEXT ("function"), pos);
|
|
|
569 goto cont;
|
|
|
570 }
|
|
|
571 }
|
|
|
572 else if (COMPILED_FUNCTIONP (fun))
|
|
|
573 {
|
|
|
574 /* Compiled-Function objects sometimes have
|
|
|
575 slots for it. */
|
|
440
|
576 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (fun);
|
|
428
|
577
|
|
|
578 /* This compiled-function object must have a
|
|
|
579 slot for the docstring, since we've found a
|
|
|
580 docstring for it. Unless there were multiple
|
|
|
581 definitions of it, and the latter one didn't
|
|
|
582 have any doc, which is a legal if slightly
|
|
|
583 bogus situation, so don't blow up. */
|
|
|
584
|
|
|
585 if (! (f->flags.documentationp))
|
|
|
586 {
|
|
|
587 weird_doc (sym, GETTEXT ("no doc slot"),
|
|
|
588 GETTEXT ("bytecode"), pos);
|
|
|
589 goto weird;
|
|
|
590 }
|
|
|
591 else
|
|
|
592 {
|
|
|
593 Lisp_Object old =
|
|
|
594 compiled_function_documentation (f);
|
|
|
595 if (!ZEROP (old))
|
|
|
596 {
|
|
|
597 weird_doc (sym, GETTEXT ("duplicate"),
|
|
|
598 GETTEXT ("bytecode"), pos);
|
|
|
599 /* In the case of duplicate doc file entries,
|
|
|
600 always take the later one. But if the doc is
|
|
|
601 not an int (a string, say) leave it alone. */
|
|
|
602 if (!INTP (old))
|
|
|
603 goto weird;
|
|
|
604 }
|
|
|
605 set_compiled_function_documentation (f, offset);
|
|
|
606 }
|
|
|
607 }
|
|
|
608 else
|
|
|
609 {
|
|
|
610 /* Otherwise the function is undefined or
|
|
|
611 otherwise weird. Ignore it. */
|
|
|
612 weird_doc (sym, GETTEXT ("weird function"),
|
|
|
613 GETTEXT ("function"), pos);
|
|
|
614 goto weird;
|
|
|
615 }
|
|
|
616 }
|
|
|
617 else
|
|
|
618 {
|
|
|
619 /* lose: */
|
|
|
620 error ("DOC file invalid at position %d", pos);
|
|
|
621 weird:
|
|
|
622 /* goto lose */;
|
|
|
623 }
|
|
|
624 }
|
|
|
625 }
|
|
|
626 cont:
|
|
|
627 pos += end - buf;
|
|
|
628 filled -= end - buf;
|
|
|
629 memmove (buf, end, filled);
|
|
|
630 }
|
|
|
631 close (fd);
|
|
|
632 return Qnil;
|
|
|
633 }
|
|
|
634
|
|
|
635
|
|
|
636 #if 1 /* Don't warn about functions whose doc was lost because they were
|
|
|
637 wrapped by advice-freeze.el... */
|
|
|
638 static int
|
|
|
639 kludgily_ignore_lost_doc_p (Lisp_Object sym)
|
|
|
640 {
|
|
|
641 # define kludge_prefix "ad-Orig-"
|
|
440
|
642 Lisp_String *name = XSYMBOL (sym)->name;
|
|
428
|
643 return (string_length (name) > (Bytecount) (sizeof (kludge_prefix)) &&
|
|
|
644 !strncmp ((char *) string_data (name), kludge_prefix,
|
|
|
645 sizeof (kludge_prefix) - 1));
|
|
|
646 # undef kludge_prefix
|
|
|
647 }
|
|
|
648 #else
|
|
|
649 # define kludgily_ignore_lost_doc_p(sym) 0
|
|
|
650 #endif
|
|
|
651
|
|
|
652
|
|
|
653 static int
|
|
|
654 verify_doc_mapper (Lisp_Object sym, void *arg)
|
|
|
655 {
|
|
|
656 Lisp_Object closure = *(Lisp_Object *)arg;
|
|
|
657
|
|
|
658 if (!NILP (Ffboundp (sym)))
|
|
|
659 {
|
|
|
660 int doc = 0;
|
|
|
661 Lisp_Object fun = XSYMBOL (sym)->function;
|
|
|
662 if (CONSP (fun) &&
|
|
|
663 EQ (XCAR (fun), Qmacro))
|
|
|
664 fun = XCDR (fun);
|
|
|
665
|
|
|
666 if (SUBRP (fun))
|
|
|
667 doc = (EMACS_INT) XSUBR (fun)->doc;
|
|
|
668 else if (SYMBOLP (fun))
|
|
|
669 doc = -1;
|
|
|
670 else if (KEYMAPP (fun))
|
|
|
671 doc = -1;
|
|
|
672 else if (CONSP (fun))
|
|
|
673 {
|
|
|
674 Lisp_Object tem = XCAR (fun);
|
|
|
675 if (EQ (tem, Qlambda) || EQ (tem, Qautoload))
|
|
|
676 {
|
|
|
677 doc = -1;
|
|
|
678 tem = Fcdr (Fcdr (fun));
|
|
|
679 if (CONSP (tem) &&
|
|
|
680 INTP (XCAR (tem)))
|
|
|
681 doc = XINT (XCAR (tem));
|
|
|
682 }
|
|
|
683 }
|
|
|
684 else if (COMPILED_FUNCTIONP (fun))
|
|
|
685 {
|
|
440
|
686 Lisp_Compiled_Function *f = XCOMPILED_FUNCTION (fun);
|
|
428
|
687 if (! (f->flags.documentationp))
|
|
|
688 doc = -1;
|
|
|
689 else
|
|
|
690 {
|
|
|
691 Lisp_Object tem = compiled_function_documentation (f);
|
|
|
692 if (INTP (tem))
|
|
|
693 doc = XINT (tem);
|
|
|
694 }
|
|
|
695 }
|
|
|
696
|
|
|
697 if (doc == 0 && !kludgily_ignore_lost_doc_p (sym))
|
|
|
698 {
|
|
|
699 message ("Warning: doc lost for function %s.",
|
|
|
700 string_data (XSYMBOL (sym)->name));
|
|
|
701 XCDR (closure) = Qt;
|
|
|
702 }
|
|
|
703 }
|
|
|
704 if (!NILP (Fboundp (sym)))
|
|
|
705 {
|
|
|
706 Lisp_Object doc = Fget (sym, Qvariable_documentation, Qnil);
|
|
|
707 if (ZEROP (doc))
|
|
|
708 {
|
|
|
709 message ("Warning: doc lost for variable %s.",
|
|
|
710 string_data (XSYMBOL (sym)->name));
|
|
|
711 XCDR (closure) = Qt;
|
|
|
712 }
|
|
|
713 }
|
|
|
714 return 0; /* Never stop */
|
|
|
715 }
|
|
|
716
|
|
|
717 DEFUN ("Verify-documentation", Fverify_documentation, 0, 0, 0, /*
|
|
|
718 Used to make sure everything went well with Snarf-documentation.
|
|
|
719 Writes to stderr if not.
|
|
|
720 */
|
|
|
721 ())
|
|
|
722 {
|
|
|
723 Lisp_Object closure = Fcons (Qnil, Qnil);
|
|
|
724 struct gcpro gcpro1;
|
|
|
725 GCPRO1 (closure);
|
|
|
726 map_obarray (Vobarray, verify_doc_mapper, &closure);
|
|
|
727 if (!NILP (Fcdr (closure)))
|
|
|
728 message ("\n"
|
|
|
729 "This is usually because some files were preloaded by loaddefs.el or\n"
|
|
|
730 "site-load.el, but were not passed to make-docfile by Makefile.\n");
|
|
|
731 UNGCPRO;
|
|
|
732 return NILP (Fcdr (closure)) ? Qt : Qnil;
|
|
|
733 }
|
|
|
734
|
|
|
735
|
|
|
736 DEFUN ("substitute-command-keys", Fsubstitute_command_keys, 1, 1, 0, /*
|
|
|
737 Substitute key descriptions for command names in STRING.
|
|
|
738 Return a new string which is STRING with substrings of the form \\=\\[COMMAND]
|
|
|
739 replaced by either: a keystroke sequence that will invoke COMMAND,
|
|
|
740 or "M-x COMMAND" if COMMAND is not on any keys.
|
|
|
741 Substrings of the form \\=\\{MAPVAR} are replaced by summaries
|
|
444
|
742 \(made by `describe-bindings') of the value of MAPVAR, taken as a keymap.
|
|
428
|
743 Substrings of the form \\=\\<MAPVAR> specify to use the value of MAPVAR
|
|
|
744 as the keymap for future \\=\\[COMMAND] substrings.
|
|
|
745 \\=\\= quotes the following character and is discarded;
|
|
|
746 thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ into the output.
|
|
|
747 */
|
|
444
|
748 (string))
|
|
428
|
749 {
|
|
|
750 /* This function can GC */
|
|
|
751 Bufbyte *buf;
|
|
|
752 int changed = 0;
|
|
|
753 REGISTER Bufbyte *strdata;
|
|
|
754 REGISTER Bufbyte *bufp;
|
|
|
755 Bytecount strlength;
|
|
|
756 Bytecount idx;
|
|
|
757 Bytecount bsize;
|
|
|
758 Bufbyte *new;
|
|
444
|
759 Lisp_Object tem = Qnil;
|
|
|
760 Lisp_Object keymap = Qnil;
|
|
|
761 Lisp_Object name = Qnil;
|
|
428
|
762 Bufbyte *start;
|
|
|
763 Bytecount length;
|
|
|
764 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
|
|
|
765
|
|
444
|
766 if (NILP (string))
|
|
428
|
767 return Qnil;
|
|
|
768
|
|
444
|
769 CHECK_STRING (string);
|
|
|
770 GCPRO4 (string, tem, keymap, name);
|
|
428
|
771
|
|
|
772 /* There is the possibility that the string is not destined for a
|
|
|
773 translating stream, and it could be argued that we should do the
|
|
|
774 same thing here as in Fformat(), but there are very few times
|
|
|
775 when this will be the case and many calls to this function
|
|
|
776 would have to have `gettext' calls added. (I18N3) */
|
|
444
|
777 string = LISP_GETTEXT (string);
|
|
428
|
778
|
|
|
779 /* KEYMAP is either nil (which means search all the active keymaps)
|
|
|
780 or a specified local map (which means search just that and the
|
|
|
781 global map). If non-nil, it might come from Voverriding_local_map,
|
|
444
|
782 or from a \\<mapname> construct in STRING itself.. */
|
|
428
|
783 #if 0 /* FSFmacs */
|
|
|
784 /* This is really weird and garbagey. If keymap is nil and there's
|
|
|
785 an overriding-local-map, `where-is-internal' will correctly note
|
|
|
786 this, so there's no reason to do it here. Maybe FSFmacs
|
|
|
787 `where-is-internal' is broken. */
|
|
|
788 /*
|
|
|
789 keymap = current_kboard->Voverriding_terminal_local_map;
|
|
|
790 if (NILP (keymap))
|
|
|
791 keymap = Voverriding_local_map;
|
|
|
792 */
|
|
|
793 #endif
|
|
|
794
|
|
444
|
795 strlength = XSTRING_LENGTH (string);
|
|
428
|
796 bsize = 1 + strlength;
|
|
|
797 buf = (Bufbyte *) xmalloc (bsize);
|
|
|
798 bufp = buf;
|
|
|
799
|
|
|
800 /* Have to reset strdata every time GC might be called */
|
|
444
|
801 strdata = XSTRING_DATA (string);
|
|
428
|
802 for (idx = 0; idx < strlength; )
|
|
|
803 {
|
|
|
804 Bufbyte *strp = strdata + idx;
|
|
|
805
|
|
|
806 if (strp[0] != '\\')
|
|
|
807 {
|
|
|
808 /* just copy other chars */
|
|
|
809 /* As it happens, this will work with Mule even if the
|
|
|
810 character quoted is multi-byte; the remaining multi-byte
|
|
|
811 characters will just be copied by this loop. */
|
|
|
812 *bufp++ = *strp;
|
|
|
813 idx++;
|
|
|
814 }
|
|
|
815 else switch (strp[1])
|
|
|
816 {
|
|
|
817 default:
|
|
|
818 {
|
|
|
819 /* just copy unknown escape sequences */
|
|
|
820 *bufp++ = *strp;
|
|
|
821 idx++;
|
|
|
822 break;
|
|
|
823 }
|
|
|
824 case '=':
|
|
|
825 {
|
|
|
826 /* \= quotes the next character;
|
|
|
827 thus, to put in \[ without its special meaning, use \=\[. */
|
|
|
828 /* As it happens, this will work with Mule even if the
|
|
|
829 character quoted is multi-byte; the remaining multi-byte
|
|
|
830 characters will just be copied by this loop. */
|
|
|
831 changed = 1;
|
|
|
832 *bufp++ = strp[2];
|
|
|
833 idx += 3;
|
|
|
834 break;
|
|
|
835 }
|
|
|
836 case '[':
|
|
|
837 {
|
|
|
838 changed = 1;
|
|
|
839 idx += 2; /* skip \[ */
|
|
|
840 strp += 2;
|
|
|
841 start = strp;
|
|
|
842
|
|
|
843 while ((idx < strlength)
|
|
|
844 && *strp != ']')
|
|
|
845 {
|
|
|
846 strp++;
|
|
|
847 idx++;
|
|
|
848 }
|
|
|
849 length = strp - start;
|
|
|
850 idx++; /* skip ] */
|
|
|
851
|
|
|
852 tem = Fintern (make_string (start, length), Qnil);
|
|
|
853 tem = Fwhere_is_internal (tem, keymap, Qt, Qnil, Qnil);
|
|
|
854
|
|
|
855 #if 0 /* FSFmacs */
|
|
444
|
856 /* Disregard menu bar bindings; it is positively annoying to
|
|
|
857 mention them when there's no menu bar, and it isn't terribly
|
|
|
858 useful even when there is a menu bar. */
|
|
|
859 if (!NILP (tem))
|
|
|
860 {
|
|
|
861 firstkey = Faref (tem, Qzero);
|
|
|
862 if (EQ (firstkey, Qmenu_bar))
|
|
|
863 tem = Qnil;
|
|
|
864 }
|
|
428
|
865 #endif
|
|
|
866
|
|
|
867 if (NILP (tem)) /* but not on any keys */
|
|
|
868 {
|
|
|
869 new = (Bufbyte *) xrealloc (buf, bsize += 4);
|
|
|
870 bufp += new - buf;
|
|
|
871 buf = new;
|
|
|
872 memcpy (bufp, "M-x ", 4);
|
|
|
873 bufp += 4;
|
|
|
874 goto subst;
|
|
|
875 }
|
|
|
876 else
|
|
|
877 { /* function is on a key */
|
|
|
878 tem = Fkey_description (tem);
|
|
|
879 goto subst_string;
|
|
|
880 }
|
|
|
881 }
|
|
|
882 case '{':
|
|
|
883 case '<':
|
|
|
884 {
|
|
444
|
885 Lisp_Object buffer = Fget_buffer_create (QSsubstitute);
|
|
|
886 struct buffer *buf_ = XBUFFER (buffer);
|
|
428
|
887
|
|
|
888 Fbuffer_disable_undo (buffer);
|
|
|
889 Ferase_buffer (buffer);
|
|
|
890
|
|
|
891 /* \{foo} is replaced with a summary of keymap (symbol-value foo).
|
|
|
892 \<foo> just sets the keymap used for \[cmd]. */
|
|
|
893 changed = 1;
|
|
|
894 idx += 2; /* skip \{ or \< */
|
|
|
895 strp += 2;
|
|
|
896 start = strp;
|
|
|
897
|
|
|
898 while ((idx < strlength)
|
|
|
899 && *strp != '}' && *strp != '>')
|
|
|
900 {
|
|
|
901 strp++;
|
|
|
902 idx++;
|
|
|
903 }
|
|
|
904 length = strp - start;
|
|
|
905 idx++; /* skip } or > */
|
|
|
906
|
|
|
907 /* Get the value of the keymap in TEM, or nil if undefined.
|
|
|
908 Do this while still in the user's current buffer
|
|
|
909 in case it is a local variable. */
|
|
|
910 name = Fintern (make_string (start, length), Qnil);
|
|
|
911 tem = Fboundp (name);
|
|
|
912 if (! NILP (tem))
|
|
|
913 {
|
|
|
914 tem = Fsymbol_value (name);
|
|
|
915 if (! NILP (tem))
|
|
|
916 tem = get_keymap (tem, 0, 1);
|
|
|
917 }
|
|
|
918
|
|
|
919 if (NILP (tem))
|
|
|
920 {
|
|
444
|
921 buffer_insert_c_string (buf_, "(uses keymap \"");
|
|
|
922 buffer_insert_lisp_string (buf_, Fsymbol_name (name));
|
|
|
923 buffer_insert_c_string (buf_, "\", which is not currently defined) ");
|
|
428
|
924
|
|
|
925 if (start[-1] == '<') keymap = Qnil;
|
|
|
926 }
|
|
|
927 else if (start[-1] == '<')
|
|
|
928 keymap = tem;
|
|
|
929 else
|
|
|
930 describe_map_tree (tem, 1, Qnil, Qnil, 0, buffer);
|
|
|
931
|
|
|
932 tem = make_string_from_buffer (buf_, BUF_BEG (buf_),
|
|
|
933 BUF_Z (buf_) - BUF_BEG (buf_));
|
|
|
934 Ferase_buffer (buffer);
|
|
444
|
935 }
|
|
|
936 goto subst_string;
|
|
428
|
937
|
|
444
|
938 subst_string:
|
|
|
939 start = XSTRING_DATA (tem);
|
|
|
940 length = XSTRING_LENGTH (tem);
|
|
|
941 subst:
|
|
|
942 bsize += length;
|
|
|
943 new = (Bufbyte *) xrealloc (buf, bsize);
|
|
|
944 bufp += new - buf;
|
|
|
945 buf = new;
|
|
|
946 memcpy (bufp, start, length);
|
|
|
947 bufp += length;
|
|
428
|
948
|
|
444
|
949 /* Reset STRDATA in case gc relocated it. */
|
|
|
950 strdata = XSTRING_DATA (string);
|
|
428
|
951
|
|
444
|
952 break;
|
|
428
|
953 }
|
|
|
954 }
|
|
|
955
|
|
|
956 if (changed) /* don't bother if nothing substituted */
|
|
|
957 tem = make_string (buf, bufp - buf);
|
|
|
958 else
|
|
444
|
959 tem = string;
|
|
428
|
960 xfree (buf);
|
|
|
961 UNGCPRO;
|
|
|
962 return tem;
|
|
|
963 }
|
|
|
964
|
|
|
965
|
|
|
966 /************************************************************************/
|
|
|
967 /* initialization */
|
|
|
968 /************************************************************************/
|
|
|
969
|
|
|
970 void
|
|
|
971 syms_of_doc (void)
|
|
|
972 {
|
|
|
973 DEFSUBR (Fdocumentation);
|
|
|
974 DEFSUBR (Fdocumentation_property);
|
|
|
975 DEFSUBR (Fsnarf_documentation);
|
|
|
976 DEFSUBR (Fverify_documentation);
|
|
|
977 DEFSUBR (Fsubstitute_command_keys);
|
|
|
978 }
|
|
|
979
|
|
|
980 void
|
|
|
981 vars_of_doc (void)
|
|
|
982 {
|
|
|
983 DEFVAR_LISP ("internal-doc-file-name", &Vinternal_doc_file_name /*
|
|
|
984 Name of file containing documentation strings of built-in symbols.
|
|
|
985 */ );
|
|
|
986 Vinternal_doc_file_name = Qnil;
|
|
|
987
|
|
|
988 QSsubstitute = build_string (" *substitute*");
|
|
|
989 staticpro (&QSsubstitute);
|
|
|
990 }
|
