/* Record indices of function doc strings stored in a file.
- Copyright (C) 1985, 1986, 1993 Free Software Foundation, Inc.
+ Copyright (C) 1985, 86,93,94,95,97,98,99, 2000 Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
+the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
#include <config.h>
#include <fcntl.h>
#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
#ifndef O_RDONLY
#define O_RDONLY 0
#endif
#include "lisp.h"
#include "buffer.h"
#include "keyboard.h"
+#include "character.h"
+#include "keymap.h"
+
+#ifdef HAVE_INDEX
+extern char *index P_ ((const char *, int));
+#endif
Lisp_Object Vdoc_file_name;
-Lisp_Object
-get_doc_string (filepos)
- long filepos;
-{
- char buf[512 * 32 + 1];
- register int fd;
- register char *name;
- register char *p, *p1;
- register int count;
- extern char *index ();
+Lisp_Object Qfunction_documentation;
- if (XTYPE (Vdata_directory) != Lisp_String
- || XTYPE (Vdoc_file_name) != Lisp_String)
- return Qnil;
+extern Lisp_Object Voverriding_local_map;
- name = (char *) alloca (XSTRING (Vdata_directory)->size
- + XSTRING (Vdoc_file_name)->size + 8);
- strcpy (name, XSTRING (Vdata_directory)->data);
- strcat (name, XSTRING (Vdoc_file_name)->data);
+/* For VMS versions with limited file name syntax,
+ convert the name to something VMS will allow. */
+static void
+munge_doc_file_name (name)
+ char *name;
+{
#ifdef VMS
#ifndef VMS4_4
/* For VMS versions with limited file name syntax,
strcpy (name, sys_translate_unix (name));
#endif /* VMS4_4 */
#endif /* VMS */
+}
+
+/* Buffer used for reading from documentation file. */
+static char *get_doc_string_buffer;
+static int get_doc_string_buffer_size;
+
+static unsigned char *read_bytecode_pointer;
+Lisp_Object Fsnarf_documentation P_ ((Lisp_Object));
+
+/* readchar in lread.c calls back here to fetch the next byte.
+ If UNREADFLAG is 1, we unread a byte. */
+
+int
+read_bytecode_char (unreadflag)
+ int unreadflag;
+{
+ if (unreadflag)
+ {
+ read_bytecode_pointer--;
+ return 0;
+ }
+ return *read_bytecode_pointer++;
+}
+
+/* Extract a doc string from a file. FILEPOS says where to get it.
+ If it is an integer, use that position in the standard DOC-... file.
+ If it is (FILE . INTEGER), use FILE as the file name
+ and INTEGER as the position in that file.
+ But if INTEGER is negative, make it positive.
+ (A negative integer is used for user variables, so we can distinguish
+ them without actually fetching the doc string.)
+
+ If UNIBYTE is nonzero, always make a unibyte string.
+
+ If DEFINITION is nonzero, assume this is for reading
+ a dynamic function definition; convert the bytestring
+ and the constants vector with appropriate byte handling,
+ and return a cons cell. */
+
+Lisp_Object
+get_doc_string (filepos, unibyte, definition)
+ Lisp_Object filepos;
+ int unibyte, definition;
+{
+ char *from, *to;
+ register int fd;
+ register char *name;
+ register char *p, *p1;
+ int minsize;
+ int offset, position;
+ Lisp_Object file, tem;
+
+ if (INTEGERP (filepos))
+ {
+ file = Vdoc_file_name;
+ position = XINT (filepos);
+ }
+ else if (CONSP (filepos))
+ {
+ file = XCAR (filepos);
+ position = XINT (XCDR (filepos));
+ }
+ else
+ return Qnil;
+
+ if (position < 0)
+ position = - position;
+
+ if (!STRINGP (Vdoc_directory))
+ return Qnil;
+
+ if (!STRINGP (file))
+ return Qnil;
+
+ /* Put the file name in NAME as a C string.
+ If it is relative, combine it with Vdoc_directory. */
- fd = open (name, O_RDONLY, 0);
+ tem = Ffile_name_absolute_p (file);
+ if (NILP (tem))
+ {
+ minsize = XSTRING (Vdoc_directory)->size;
+ /* sizeof ("../etc/") == 8 */
+ if (minsize < 8)
+ minsize = 8;
+ name = (char *) alloca (minsize + XSTRING (file)->size + 8);
+ strcpy (name, XSTRING (Vdoc_directory)->data);
+ strcat (name, XSTRING (file)->data);
+ munge_doc_file_name (name);
+ }
+ else
+ {
+ name = (char *) XSTRING (file)->data;
+ }
+
+ fd = emacs_open (name, O_RDONLY, 0);
if (fd < 0)
- error ("Cannot open doc string file \"%s\"", name);
- if (0 > lseek (fd, filepos, 0))
{
- close (fd);
+#ifndef CANNOT_DUMP
+ if (!NILP (Vpurify_flag))
+ {
+ /* Preparing to dump; DOC file is probably not installed.
+ So check in ../etc. */
+ strcpy (name, "../etc/");
+ strcat (name, XSTRING (file)->data);
+ munge_doc_file_name (name);
+
+ fd = emacs_open (name, O_RDONLY, 0);
+ }
+#endif
+ if (fd < 0)
+ error ("Cannot open doc string file \"%s\"", name);
+ }
+
+ /* Seek only to beginning of disk block. */
+ offset = position % (8 * 1024);
+ if (0 > lseek (fd, position - offset, 0))
+ {
+ emacs_close (fd);
error ("Position %ld out of range in doc string file \"%s\"",
- filepos, name);
+ position, name);
}
- p = buf;
- while (p != buf + sizeof buf - 1)
+
+ /* Read the doc string into get_doc_string_buffer.
+ P points beyond the data just read. */
+
+ p = get_doc_string_buffer;
+ while (1)
{
- count = read (fd, p, 512);
- p[count] = 0;
- if (!count)
+ int space_left = (get_doc_string_buffer_size
+ - (p - get_doc_string_buffer));
+ int nread;
+
+ /* Allocate or grow the buffer if we need to. */
+ if (space_left == 0)
+ {
+ int in_buffer = p - get_doc_string_buffer;
+ get_doc_string_buffer_size += 16 * 1024;
+ get_doc_string_buffer
+ = (char *) xrealloc (get_doc_string_buffer,
+ get_doc_string_buffer_size + 1);
+ p = get_doc_string_buffer + in_buffer;
+ space_left = (get_doc_string_buffer_size
+ - (p - get_doc_string_buffer));
+ }
+
+ /* Read a disk block at a time.
+ If we read the same block last time, maybe skip this? */
+ if (space_left > 1024 * 8)
+ space_left = 1024 * 8;
+ nread = emacs_read (fd, p, space_left);
+ if (nread < 0)
+ {
+ emacs_close (fd);
+ error ("Read error on documentation file");
+ }
+ p[nread] = 0;
+ if (!nread)
break;
- p1 = index (p, '\037');
+ if (p == get_doc_string_buffer)
+ p1 = (char *) index (p + offset, '\037');
+ else
+ p1 = (char *) index (p, '\037');
if (p1)
{
*p1 = 0;
p = p1;
break;
}
- p += count;
+ p += nread;
+ }
+ emacs_close (fd);
+
+ /* Scan the text and perform quoting with ^A (char code 1).
+ ^A^A becomes ^A, ^A0 becomes a null char, and ^A_ becomes a ^_. */
+ from = get_doc_string_buffer + offset;
+ to = get_doc_string_buffer + offset;
+ while (from != p)
+ {
+ if (*from == 1)
+ {
+ int c;
+
+ from++;
+ c = *from++;
+ if (c == 1)
+ *to++ = c;
+ else if (c == '0')
+ *to++ = 0;
+ else if (c == '_')
+ *to++ = 037;
+ else
+ error ("Invalid data in documentation file -- ^A followed by code 0%o", c);
+ }
+ else
+ *to++ = *from++;
+ }
+
+ /* If DEFINITION, read from this buffer
+ the same way we would read bytes from a file. */
+ if (definition)
+ {
+ read_bytecode_pointer = get_doc_string_buffer + offset;
+ return Fread (Qlambda);
+ }
+
+ if (unibyte)
+ return make_unibyte_string (get_doc_string_buffer + offset,
+ to - (get_doc_string_buffer + offset));
+ else
+ {
+ /* Let the data determine whether the string is multibyte,
+ even if Emacs is running in --unibyte mode. */
+ int nchars = multibyte_chars_in_text (get_doc_string_buffer + offset,
+ to - (get_doc_string_buffer + offset));
+ return make_string_from_bytes (get_doc_string_buffer + offset,
+ nchars,
+ to - (get_doc_string_buffer + offset));
}
- close (fd);
- return make_string (buf, p - buf);
+}
+
+/* Get a string from position FILEPOS and pass it through the Lisp reader.
+ We use this for fetching the bytecode string and constants vector
+ of a compiled function from the .elc file. */
+
+Lisp_Object
+read_doc_string (filepos)
+ Lisp_Object filepos;
+{
+ return get_doc_string (filepos, 0, 1);
}
DEFUN ("documentation", Fdocumentation, Sdocumentation, 1, 2, 0,
- "Return the documentation string of FUNCTION.\n\
-Unless a non-nil second argument is given, the\n\
-string is passed through `substitute-command-keys'.")
- (function, raw)
+ doc: /* Return the documentation string of FUNCTION.
+Unless a non-nil second argument RAW is given, the
+string is passed through `substitute-command-keys'. */)
+ (function, raw)
Lisp_Object function, raw;
{
Lisp_Object fun;
Lisp_Object funcar;
Lisp_Object tem, doc;
+ doc = Qnil;
+
+ if (SYMBOLP (function)
+ && (tem = Fget (function, Qfunction_documentation),
+ !NILP (tem)))
+ return Fdocumentation_property (function, Qfunction_documentation, raw);
+
fun = Findirect_function (function);
-
- switch (XTYPE (fun))
+ if (SUBRP (fun))
{
- case Lisp_Subr:
- if (XSUBR (fun)->doc == 0) return Qnil;
- if ((int) XSUBR (fun)->doc >= 0)
+ if (XSUBR (fun)->doc == 0)
+ return Qnil;
+ else if ((EMACS_INT) XSUBR (fun)->doc >= 0)
doc = build_string (XSUBR (fun)->doc);
else
- doc = get_doc_string (- (int) XSUBR (fun)->doc);
- break;
-
- case Lisp_Compiled:
- if (XVECTOR (fun)->size <= COMPILED_DOC_STRING)
+ doc = make_number ((EMACS_INT) XSUBR (fun)->doc);
+ }
+ else if (COMPILEDP (fun))
+ {
+ if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) <= COMPILED_DOC_STRING)
return Qnil;
- tem = XVECTOR (fun)->contents[COMPILED_DOC_STRING];
- if (XTYPE (tem) == Lisp_String)
+ tem = AREF (fun, COMPILED_DOC_STRING);
+ if (STRINGP (tem))
+ doc = tem;
+ else if (NATNUMP (tem) || CONSP (tem))
doc = tem;
- else if (XTYPE (tem) == Lisp_Int && XINT (tem) >= 0)
- doc = get_doc_string (XFASTINT (tem));
else
return Qnil;
- break;
-
- case Lisp_String:
- case Lisp_Vector:
+ }
+ else if (STRINGP (fun) || VECTORP (fun))
+ {
return build_string ("Keyboard macro.");
-
- case Lisp_Cons:
+ }
+ else if (CONSP (fun))
+ {
funcar = Fcar (fun);
- if (XTYPE (funcar) != Lisp_Symbol)
+ if (!SYMBOLP (funcar))
return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
else if (EQ (funcar, Qkeymap))
- return build_string ("Prefix command (definition is a keymap associating keystrokes with\n\
-subcommands.)");
+ return build_string ("Prefix command (definition is a keymap associating keystrokes with commands).");
else if (EQ (funcar, Qlambda)
|| EQ (funcar, Qautoload))
{
- tem = Fcar (Fcdr (Fcdr (fun)));
- if (XTYPE (tem) == Lisp_String)
+ Lisp_Object tem1;
+ tem1 = Fcdr (Fcdr (fun));
+ tem = Fcar (tem1);
+ if (STRINGP (tem))
+ doc = tem;
+ /* Handle a doc reference--but these never come last
+ in the function body, so reject them if they are last. */
+ else if ((NATNUMP (tem) || (CONSP (tem) && INTEGERP (XCDR (tem))))
+ && !NILP (XCDR (tem1)))
doc = tem;
- else if (XTYPE (tem) == Lisp_Int && XINT (tem) >= 0)
- doc = get_doc_string (XFASTINT (tem));
else
return Qnil;
-
- break;
}
- else if (EQ (funcar, Qmocklisp))
- return Qnil;
else if (EQ (funcar, Qmacro))
return Fdocumentation (Fcdr (fun), raw);
-
- /* Fall through to the default to report an error. */
-
- default:
- return Fsignal (Qinvalid_function, Fcons (fun, Qnil));
+ else
+ goto oops;
}
-
- if (NILP (raw))
+ else
{
- struct gcpro gcpro1;
-
- GCPRO1 (doc);
- doc = Fsubstitute_command_keys (doc);
- UNGCPRO;
+ oops:
+ Fsignal (Qinvalid_function, Fcons (fun, Qnil));
}
+
+ if (INTEGERP (doc) || CONSP (doc))
+ doc = get_doc_string (doc, 0, 0);
+
+ if (NILP (raw))
+ doc = Fsubstitute_command_keys (doc);
return doc;
}
-DEFUN ("documentation-property", Fdocumentation_property, Sdocumentation_property, 2, 3, 0,
- "Return the documentation string that is SYMBOL's PROP property.\n\
-This is like `get', but it can refer to strings stored in the\n\
-`etc/DOC' file; and if the value is a string, it is passed through\n\
-`substitute-command-keys'. A non-nil third argument avoids this\n\
-translation.")
- (sym, prop, raw)
- Lisp_Object sym, prop, raw;
+DEFUN ("documentation-property", Fdocumentation_property,
+ Sdocumentation_property, 2, 3, 0,
+ doc: /* Return the documentation string that is SYMBOL's PROP property.
+Third argument RAW omitted or nil means pass the result through
+`substitute-command-keys' if it is a string.
+
+This differs from `get' in that it can refer to strings stored in the
+`etc/DOC' file; and that it evaluates documentation properties that
+aren't strings. */)
+ (symbol, prop, raw)
+ Lisp_Object symbol, prop, raw;
{
- register Lisp_Object tem;
+ Lisp_Object tem;
- tem = Fget (sym, prop);
- if (XTYPE (tem) == Lisp_Int)
- tem = get_doc_string (XINT (tem) > 0 ? XINT (tem) : - XINT (tem));
- if (NILP (raw) && XTYPE (tem) == Lisp_String)
- return Fsubstitute_command_keys (tem);
+ tem = Fget (symbol, prop);
+ if (INTEGERP (tem) || (CONSP (tem) && INTEGERP (XCDR (tem))))
+ tem = get_doc_string (tem, 0, 0);
+ else if (!STRINGP (tem))
+ /* Feval protects its argument. */
+ tem = Feval (tem);
+
+ if (NILP (raw) && STRINGP (tem))
+ tem = Fsubstitute_command_keys (tem);
return tem;
}
\f
static void
store_function_docstring (fun, offset)
Lisp_Object fun;
- int offset;
+ /* Use EMACS_INT because we get this from pointer subtraction. */
+ EMACS_INT offset;
{
fun = indirect_function (fun);
/* The type determines where the docstring is stored. */
/* Lisp_Subrs have a slot for it. */
- if (XTYPE (fun) == Lisp_Subr)
+ if (SUBRP (fun))
XSUBR (fun)->doc = (char *) - offset;
/* If it's a lisp form, stick it in the form. */
{
Lisp_Object tem;
- tem = XCONS (fun)->car;
+ tem = XCAR (fun);
if (EQ (tem, Qlambda) || EQ (tem, Qautoload))
{
tem = Fcdr (Fcdr (fun));
- if (CONSP (tem) &&
- XTYPE (XCONS (tem)->car) == Lisp_Int)
- XFASTINT (XCONS (tem)->car) = offset;
+ if (CONSP (tem) && INTEGERP (XCAR (tem)))
+ XSETCARFASTINT (tem, offset);
}
else if (EQ (tem, Qmacro))
- store_function_docstring (XCONS (fun)->cdr, offset);
+ store_function_docstring (XCDR (fun), offset);
}
/* Bytecode objects sometimes have slots for it. */
- else if (XTYPE (fun) == Lisp_Compiled)
+ else if (COMPILEDP (fun))
{
/* This bytecode object must have a slot for the
docstring, since we've found a docstring for it. */
- if (XVECTOR (fun)->size <= COMPILED_DOC_STRING)
- abort ();
-
- XFASTINT (XVECTOR (fun)->contents[COMPILED_DOC_STRING]) = offset;
+ if ((ASIZE (fun) & PSEUDOVECTOR_SIZE_MASK) > COMPILED_DOC_STRING)
+ XSETFASTINT (AREF (fun, COMPILED_DOC_STRING), offset);
}
}
DEFUN ("Snarf-documentation", Fsnarf_documentation, Ssnarf_documentation,
- 1, 1, 0,
- "Used during Emacs initialization, before dumping runnable Emacs,\n\
-to find pointers to doc strings stored in `etc/DOC...' and\n\
-record them in function definitions.\n\
-One arg, FILENAME, a string which does not include a directory.\n\
-The file is found in `../etc' now; found in the `data-directory'\n\
-when doc strings are referred to later in the dumped Emacs.")
- (filename)
+ 1, 1, 0,
+ doc: /* Used during Emacs initialization to scan the `etc/DOC...' file.
+This searches the `etc/DOC...' file for doc strings and
+records them in function and variable definitions.
+The function takes one argument, FILENAME, a string;
+it specifies the file name (without a directory) of the DOC file.
+That file is found in `../etc' now; later, when the dumped Emacs is run,
+the same file name is found in the `data-directory'. */)
+ (filename)
Lisp_Object filename;
{
int fd;
register int filled;
register int pos;
register char *p, *end;
- Lisp_Object sym, fun, tem;
+ Lisp_Object sym;
char *name;
- extern char *index ();
#ifndef CANNOT_DUMP
if (NILP (Vpurify_flag))
error ("Snarf-documentation can only be called in an undumped Emacs");
#endif
- CHECK_STRING (filename, 0);
+ CHECK_STRING (filename);
#ifndef CANNOT_DUMP
name = (char *) alloca (XSTRING (filename)->size + 14);
strcpy (name, "../etc/");
#else /* CANNOT_DUMP */
- CHECK_STRING (Vdata_directory, 0);
- name = (char *) alloca (XSTRING (filename)->size +
- XSTRING (Vdata_directory)->size + 1);
- strcpy (name, XSTRING (Vdata_directory)->data);
+ CHECK_STRING (Vdoc_directory);
+ name = (char *) alloca (XSTRING (filename)->size
+ + XSTRING (Vdoc_directory)->size + 1);
+ strcpy (name, XSTRING (Vdoc_directory)->data);
#endif /* CANNOT_DUMP */
strcat (name, XSTRING (filename)->data); /*** Add this line ***/
#ifdef VMS
#endif /* VMS4_4 */
#endif /* VMS */
- fd = open (name, O_RDONLY, 0);
+ fd = emacs_open (name, O_RDONLY, 0);
if (fd < 0)
report_file_error ("Opening doc string file",
Fcons (build_string (name), Qnil));
while (1)
{
if (filled < 512)
- filled += read (fd, &buf[filled], sizeof buf - 1 - filled);
+ filled += emacs_read (fd, &buf[filled], sizeof buf - 1 - filled);
if (!filled)
break;
/* p points to ^_Ffunctionname\n or ^_Vvarname\n. */
if (p != end)
{
- end = index (p, '\n');
- sym = oblookup (Vobarray, p + 2, end - p - 2);
- if (XTYPE (sym) == Lisp_Symbol)
+ end = (char *) index (p, '\n');
+ sym = oblookup (Vobarray, p + 2,
+ multibyte_chars_in_text (p + 2, end - p - 2),
+ end - p - 2);
+ if (SYMBOLP (sym))
{
/* Attach a docstring to a variable? */
if (p[1] == 'V')
filled -= end - buf;
bcopy (end, buf, filled);
}
- close (fd);
+ emacs_close (fd);
return Qnil;
}
\f
DEFUN ("substitute-command-keys", Fsubstitute_command_keys,
- Ssubstitute_command_keys, 1, 1, 0,
- "Substitute key descriptions for command names in STRING.\n\
-Return a new string which is STRING with substrings of the form \\=\\[COMMAND]\n\
-replaced by either: a keystroke sequence that will invoke COMMAND,\n\
-or \"M-x COMMAND\" if COMMAND is not on any keys.\n\
-Substrings of the form \\=\\{MAPVAR} are replaced by summaries\n\
-\(made by describe-bindings) of the value of MAPVAR, taken as a keymap.\n\
-Substrings of the form \\=\\<MAPVAR> specify to use the value of MAPVAR\n\
-as the keymap for future \\=\\[COMMAND] substrings.\n\
-\\=\\= quotes the following character and is discarded;\n\
-thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ into the output.")
- (str)
- Lisp_Object str;
+ Ssubstitute_command_keys, 1, 1, 0,
+ doc: /* Substitute key descriptions for command names in STRING.
+Return a new string which is STRING with substrings of the form \\=\\[COMMAND]
+replaced by either: a keystroke sequence that will invoke COMMAND,
+or "M-x COMMAND" if COMMAND is not on any keys.
+Substrings of the form \\=\\{MAPVAR} are replaced by summaries
+\(made by describe-bindings) of the value of MAPVAR, taken as a keymap.
+Substrings of the form \\=\\<MAPVAR> specify to use the value of MAPVAR
+as the keymap for future \\=\\[COMMAND] substrings.
+\\=\\= quotes the following character and is discarded;
+thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ into the output. */)
+ (string)
+ Lisp_Object string;
{
unsigned char *buf;
int changed = 0;
register unsigned char *bufp;
int idx;
int bsize;
- unsigned char *new;
Lisp_Object tem;
Lisp_Object keymap;
unsigned char *start;
- int length;
+ int length, length_byte;
Lisp_Object name;
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
+ int multibyte;
+ int nchars;
- if (NILP (str))
+ if (NILP (string))
return Qnil;
- CHECK_STRING (str, 0);
+ CHECK_STRING (string);
tem = Qnil;
keymap = Qnil;
name = Qnil;
- GCPRO4 (str, tem, keymap, name);
+ GCPRO4 (string, tem, keymap, name);
+
+ multibyte = STRING_MULTIBYTE (string);
+ nchars = 0;
- keymap = current_buffer->keymap;
+ /* KEYMAP is either nil (which means search all the active keymaps)
+ or a specified local map (which means search just that and the
+ global map). If non-nil, it might come from Voverriding_local_map,
+ or from a \\<mapname> construct in STRING itself.. */
+ keymap = current_kboard->Voverriding_terminal_local_map;
+ if (NILP (keymap))
+ keymap = Voverriding_local_map;
- bsize = XSTRING (str)->size;
+ bsize = STRING_BYTES (XSTRING (string));
bufp = buf = (unsigned char *) xmalloc (bsize);
- strp = (unsigned char *) XSTRING (str)->data;
- while (strp < (unsigned char *) XSTRING (str)->data + XSTRING (str)->size)
+ strp = (unsigned char *) XSTRING (string)->data;
+ while (strp < XSTRING (string)->data + STRING_BYTES (XSTRING (string)))
{
if (strp[0] == '\\' && strp[1] == '=')
{
/* \= quotes the next character;
thus, to put in \[ without its special meaning, use \=\[. */
changed = 1;
- *bufp++ = strp[2];
- strp += 3;
+ strp += 2;
+ if (multibyte)
+ {
+ int len;
+ int maxlen = XSTRING (string)->data + STRING_BYTES (XSTRING (string)) - strp;
+
+ STRING_CHAR_AND_LENGTH (strp, maxlen, len);
+ if (len == 1)
+ *bufp = *strp;
+ else
+ bcopy (strp, bufp, len);
+ strp += len;
+ bufp += len;
+ nchars++;
+ }
+ else
+ *bufp++ = *strp++, nchars++;
}
else if (strp[0] == '\\' && strp[1] == '[')
{
Lisp_Object firstkey;
+ int start_idx;
changed = 1;
strp += 2; /* skip \[ */
start = strp;
+ start_idx = start - XSTRING (string)->data;
- while ((strp - (unsigned char *) XSTRING (str)->data
- < XSTRING (str)->size)
+ while ((strp - (unsigned char *) XSTRING (string)->data
+ < STRING_BYTES (XSTRING (string)))
&& *strp != ']')
strp++;
- length = strp - start;
+ length_byte = strp - start;
+
strp++; /* skip ] */
/* Save STRP in IDX. */
- idx = strp - (unsigned char *) XSTRING (str)->data;
- tem = Fintern (make_string (start, length), Qnil);
- tem = Fwhere_is_internal (tem, keymap, Qnil, Qt, Qnil);
+ idx = strp - (unsigned char *) XSTRING (string)->data;
+ tem = Fintern (make_string (start, length_byte), Qnil);
+
+ /* Note the Fwhere_is_internal can GC, so we have to take
+ relocation of string contents into account. */
+ tem = Fwhere_is_internal (tem, keymap, Qt, Qnil, Qnil);
+ strp = XSTRING (string)->data + idx;
+ start = XSTRING (string)->data + start_idx;
/* Disregard menu bar bindings; it is positively annoying to
mention them when there's no menu bar, and it isn't terribly
useful even when there is a menu bar. */
- firstkey = Faref (tem, make_number (0));
- if (EQ (firstkey, Qmenu_bar))
- tem = Qnil;
+ if (!NILP (tem))
+ {
+ firstkey = Faref (tem, make_number (0));
+ if (EQ (firstkey, Qmenu_bar))
+ tem = Qnil;
+ }
if (NILP (tem)) /* but not on any keys */
{
- new = (unsigned char *) xrealloc (buf, bsize += 4);
- bufp += new - buf;
- buf = new;
+ int offset = bufp - buf;
+ buf = (unsigned char *) xrealloc (buf, bsize += 4);
+ bufp = buf + offset;
bcopy ("M-x ", bufp, 4);
bufp += 4;
+ nchars += 4;
+ if (multibyte)
+ length = multibyte_chars_in_text (start, length_byte);
+ else
+ length = length_byte;
goto subst;
}
else
else if (strp[0] == '\\' && (strp[1] == '{' || strp[1] == '<'))
{
struct buffer *oldbuf;
+ int start_idx;
changed = 1;
strp += 2; /* skip \{ or \< */
start = strp;
+ start_idx = start - XSTRING (string)->data;
- while ((strp - (unsigned char *) XSTRING (str)->data
- < XSTRING (str)->size)
+ while ((strp - (unsigned char *) XSTRING (string)->data
+ < XSTRING (string)->size)
&& *strp != '}' && *strp != '>')
strp++;
- length = strp - start;
+
+ length_byte = strp - start;
strp++; /* skip } or > */
/* Save STRP in IDX. */
- idx = strp - (unsigned char *) XSTRING (str)->data;
+ idx = strp - (unsigned char *) XSTRING (string)->data;
/* Get the value of the keymap in TEM, or nil if undefined.
Do this while still in the user's current buffer
in case it is a local variable. */
- name = Fintern (make_string (start, length), Qnil);
+ name = Fintern (make_string (start, length_byte), Qnil);
tem = Fboundp (name);
if (! NILP (tem))
{
tem = Fsymbol_value (name);
if (! NILP (tem))
- tem = get_keymap_1 (tem, 0, 1);
+ {
+ tem = get_keymap (tem, 0, 1);
+ /* Note that get_keymap can GC. */
+ strp = XSTRING (string)->data + idx;
+ start = XSTRING (string)->data + start_idx;
+ }
}
/* Now switch to a temp buffer. */
{
name = Fsymbol_name (name);
insert_string ("\nUses keymap \"");
- insert_from_string (name, 0, XSTRING (name)->size, 1);
+ insert_from_string (name, 0, 0,
+ XSTRING (name)->size,
+ STRING_BYTES (XSTRING (name)), 1);
insert_string ("\", which is not currently defined.\n");
if (start[-1] == '<') keymap = Qnil;
}
else if (start[-1] == '<')
keymap = tem;
else
- describe_map_tree (tem, 1, Qnil, Qnil, 0);
+ describe_map_tree (tem, 1, Qnil, Qnil, (char *)0, 1, 0, 0);
tem = Fbuffer_string ();
Ferase_buffer ();
set_buffer_internal (oldbuf);
subst_string:
start = XSTRING (tem)->data;
length = XSTRING (tem)->size;
+ length_byte = STRING_BYTES (XSTRING (tem));
subst:
- new = (unsigned char *) xrealloc (buf, bsize += length);
- bufp += new - buf;
- buf = new;
- bcopy (start, bufp, length);
- bufp += length;
- /* Check STR again in case gc relocated it. */
- strp = (unsigned char *) XSTRING (str)->data + idx;
+ {
+ int offset = bufp - buf;
+ buf = (unsigned char *) xrealloc (buf, bsize += length_byte);
+ bufp = buf + offset;
+ bcopy (start, bufp, length_byte);
+ bufp += length_byte;
+ nchars += length;
+ /* Check STRING again in case gc relocated it. */
+ strp = (unsigned char *) XSTRING (string)->data + idx;
+ }
+ }
+ else if (! multibyte) /* just copy other chars */
+ *bufp++ = *strp++, nchars++;
+ else
+ {
+ int len;
+ int maxlen = XSTRING (string)->data + STRING_BYTES (XSTRING (string)) - strp;
+
+ STRING_CHAR_AND_LENGTH (strp, maxlen, len);
+ if (len == 1)
+ *bufp = *strp;
+ else
+ bcopy (strp, bufp, len);
+ strp += len;
+ bufp += len;
+ nchars++;
}
- else /* just copy other chars */
- *bufp++ = *strp++;
}
if (changed) /* don't bother if nothing substituted */
- tem = make_string (buf, bufp - buf);
+ tem = make_string_from_bytes (buf, nchars, bufp - buf);
else
- tem = str;
+ tem = string;
xfree (buf);
RETURN_UNGCPRO (tem);
}
\f
+void
syms_of_doc ()
{
+ Qfunction_documentation = intern ("function-documentation");
+ staticpro (&Qfunction_documentation);
+
DEFVAR_LISP ("internal-doc-file-name", &Vdoc_file_name,
- "Name of file containing documentation strings of built-in symbols.");
+ doc: /* Name of file containing documentation strings of built-in symbols. */);
Vdoc_file_name = Qnil;
defsubr (&Sdocumentation);
HCoop / bpt / emacs.git / blobdiff