/* GNU Emacs case conversion functions.
- Copyright (C) 1985, 1994, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1994, 1997, 1998, 1999, 2001, 2002, 2003, 2004,
+ 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
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, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#include <config.h>
#include "charset.h"
#include "commands.h"
#include "syntax.h"
+#include "composite.h"
+#include "keymap.h"
enum case_action {CASE_UP, CASE_DOWN, CASE_CAPITALIZE, CASE_CAPITALIZE_UP};
{
register int i, c, len;
register int inword = flag == CASE_DOWN;
- Lisp_Object tem;
/* If the case table is flagged as modified, rescan it. */
if (NILP (XCHAR_TABLE (current_buffer->downcase_table)->extras[1]))
{
if (INTEGERP (obj))
{
- c = DOWNCASE (XFASTINT (obj));
+ int flagbits = (CHAR_ALT | CHAR_SUPER | CHAR_HYPER
+ | CHAR_SHIFT | CHAR_CTL | CHAR_META);
+ int flags = XINT (obj) & flagbits;
+
+ /* If the character has higher bits set
+ above the flags, return it unchanged.
+ It is not a real character. */
+ if ((unsigned) XFASTINT (obj) > (unsigned) flagbits)
+ return obj;
+
+ c = DOWNCASE (XFASTINT (obj) & ~flagbits);
if (inword)
- XSETFASTINT (obj, c);
- else if (c == XFASTINT (obj))
+ XSETFASTINT (obj, c | flags);
+ else if (c == (XFASTINT (obj) & ~flagbits))
{
- c = UPCASE1 (XFASTINT (obj));
- XSETFASTINT (obj, c);
+ c = UPCASE1 ((XFASTINT (obj) & ~flagbits));
+ XSETFASTINT (obj, c | flags);
}
return obj;
}
if (STRINGP (obj))
{
int multibyte = STRING_MULTIBYTE (obj);
+ int n;
obj = Fcopy_sequence (obj);
- len = STRING_BYTES (XSTRING (obj));
+ len = SBYTES (obj);
- /* Scan all single-byte characters from start of string. */
- for (i = 0; i < len;)
+ /* I counts bytes, and N counts chars. */
+ for (i = n = 0; i < len; n++)
{
- c = XSTRING (obj)->data[i];
+ int from_len = 1, to_len = 1;
+
+ c = SREF (obj, i);
if (multibyte && c >= 0x80)
- /* A multibyte character can't be handled in this
- simple loop. */
- break;
+ c = STRING_CHAR_AND_LENGTH (SDATA (obj) + i, len -i, from_len);
if (inword && flag != CASE_CAPITALIZE_UP)
c = DOWNCASE (c);
else if (!UPPERCASEP (c)
&& (!inword || flag != CASE_CAPITALIZE_UP))
c = UPCASE1 (c);
- /* If this char won't fit in a single-byte string.
- fall out to the multibyte case. */
- if (multibyte ? ! ASCII_BYTE_P (c)
- : ! SINGLE_BYTE_CHAR_P (c))
- break;
-
- XSTRING (obj)->data[i] = c;
- if ((int) flag >= (int) CASE_CAPITALIZE)
- inword = SYNTAX (c) == Sword;
- i++;
- }
-
- /* If we didn't do the whole string as single-byte,
- scan the rest in a more complex way. */
- if (i < len)
- {
- /* The work is not yet finished because of a multibyte
- character just encountered. */
- int fromlen, tolen, j = i, j_byte = i;
- char *buf
- = (char *) alloca ((len - i) * MAX_LENGTH_OF_MULTI_BYTE_FORM
- + i);
- unsigned char *str, workbuf[4];
-
- /* Copy data already handled. */
- bcopy (XSTRING (obj)->data, buf, i);
-
- /* From now on, I counts bytes. */
- while (i < len)
+ if ((ASCII_BYTE_P (c) && from_len == 1)
+ || (! multibyte && SINGLE_BYTE_CHAR_P (c)))
+ SSET (obj, i, c);
+ else
{
- c = STRING_CHAR_AND_LENGTH (XSTRING (obj)->data + i,
- len - i, fromlen);
- if (inword && flag != CASE_CAPITALIZE_UP)
- c = DOWNCASE (c);
- else if (!UPPERCASEP (c)
- && (!inword || flag != CASE_CAPITALIZE_UP))
- c = UPCASE1 (c);
- tolen = CHAR_STRING (c, workbuf, str);
- bcopy (str, buf + j_byte, tolen);
- i += fromlen;
- j++;
- j_byte += tolen;
- if ((int) flag >= (int) CASE_CAPITALIZE)
- inword = SYNTAX (c) == Sword;
+ to_len = CHAR_BYTES (c);
+ if (from_len == to_len)
+ CHAR_STRING (c, SDATA (obj) + i);
+ else
+ {
+ Faset (obj, make_number (n), make_number (c));
+ len += to_len - from_len;
+ }
}
- obj = make_specified_string (buf, j, j_byte,
- STRING_MULTIBYTE (obj));
+ if ((int) flag >= (int) CASE_CAPITALIZE)
+ inword = SYNTAX (c) == Sword;
+ i += to_len;
}
return obj;
}
}
DEFUN ("upcase", Fupcase, Supcase, 1, 1, 0,
- "Convert argument to upper case and return that.\n\
-The argument may be a character or string. The result has the same type.\n\
-The argument object is not altered--the value is a copy.\n\
-See also `capitalize', `downcase' and `upcase-initials'.")
- (obj)
+ doc: /* Convert argument to upper case and return that.
+The argument may be a character or string. The result has the same type.
+The argument object is not altered--the value is a copy.
+See also `capitalize', `downcase' and `upcase-initials'. */)
+ (obj)
Lisp_Object obj;
{
return casify_object (CASE_UP, obj);
}
DEFUN ("downcase", Fdowncase, Sdowncase, 1, 1, 0,
- "Convert argument to lower case and return that.\n\
-The argument may be a character or string. The result has the same type.\n\
-The argument object is not altered--the value is a copy.")
- (obj)
+ doc: /* Convert argument to lower case and return that.
+The argument may be a character or string. The result has the same type.
+The argument object is not altered--the value is a copy. */)
+ (obj)
Lisp_Object obj;
{
return casify_object (CASE_DOWN, obj);
}
DEFUN ("capitalize", Fcapitalize, Scapitalize, 1, 1, 0,
- "Convert argument to capitalized form and return that.\n\
-This means that each word's first character is upper case\n\
-and the rest is lower case.\n\
-The argument may be a character or string. The result has the same type.\n\
-The argument object is not altered--the value is a copy.")
- (obj)
+ doc: /* Convert argument to capitalized form and return that.
+This means that each word's first character is upper case
+and the rest is lower case.
+The argument may be a character or string. The result has the same type.
+The argument object is not altered--the value is a copy. */)
+ (obj)
Lisp_Object obj;
{
return casify_object (CASE_CAPITALIZE, obj);
/* Like Fcapitalize but change only the initials. */
DEFUN ("upcase-initials", Fupcase_initials, Supcase_initials, 1, 1, 0,
- "Convert the initial of each word in the argument to upper case.\n\
-Do not change the other letters of each word.\n\
-The argument may be a character or string. The result has the same type.\n\
-The argument object is not altered--the value is a copy.")
- (obj)
+ doc: /* Convert the initial of each word in the argument to upper case.
+Do not change the other letters of each word.
+The argument may be a character or string. The result has the same type.
+The argument object is not altered--the value is a copy. */)
+ (obj)
Lisp_Object obj;
{
return casify_object (CASE_CAPITALIZE_UP, obj);
/* flag is CASE_UP, CASE_DOWN or CASE_CAPITALIZE or CASE_CAPITALIZE_UP.
b and e specify range of buffer to operate on. */
+void
casify_region (flag, b, e)
enum case_action flag;
Lisp_Object b, e;
register int multibyte = !NILP (current_buffer->enable_multibyte_characters);
int start, end;
int start_byte, end_byte;
- Lisp_Object ch, downch, val;
+ int changed = 0;
if (EQ (b, e))
/* Not modifying because nothing marked */
start_byte = CHAR_TO_BYTE (start);
end_byte = CHAR_TO_BYTE (end);
- for (i = start_byte; i < end_byte; i++)
+ for (i = start_byte; i < end_byte; i++, start++)
{
- c = FETCH_BYTE (i);
+ int c2;
+ c = c2 = FETCH_BYTE (i);
if (multibyte && c >= 0x80)
/* A multibyte character can't be handled in this simple loop. */
break;
else if (!UPPERCASEP (c)
&& (!inword || flag != CASE_CAPITALIZE_UP))
c = UPCASE1 (c);
+ if (multibyte && c >= 0x80)
+ /* A multibyte result character can't be handled in this
+ simple loop. */
+ break;
FETCH_BYTE (i) = c;
+ if (c != c2)
+ changed = 1;
if ((int) flag >= (int) CASE_CAPITALIZE)
- inword = SYNTAX (c) == Sword;
+ inword = SYNTAX (c) == Sword && (inword || !SYNTAX_PREFIX (c));
}
if (i < end_byte)
{
int opoint_byte = PT_BYTE;
int c2;
- while (i < end_byte)
+ while (start < end)
{
if ((c = FETCH_BYTE (i)) >= 0x80)
c = FETCH_MULTIBYTE_CHAR (i);
if (c != c2)
{
int fromlen, tolen, j;
- unsigned char workbuf[4], *str;
+ unsigned char str[MAX_MULTIBYTE_LENGTH];
+ changed = 1;
/* Handle the most likely case */
if (c < 0400 && c2 < 0400)
FETCH_BYTE (i) = c2;
- else if (fromlen = CHAR_STRING (c, workbuf, str),
- tolen = CHAR_STRING (c2, workbuf, str),
+ else if (fromlen = CHAR_STRING (c, str),
+ tolen = CHAR_STRING (c2, str),
fromlen == tolen)
{
+ /* Length is unchanged. */
for (j = 0; j < tolen; ++j)
FETCH_BYTE (i + j) = str[j];
}
else
{
- error ("Can't casify letters that change length");
-#if 0 /* This is approximately what we'd like to be able to do here */
- if (tolen < fromlen)
- del_range_1 (i + tolen, i + fromlen, 0);
- else if (tolen > fromlen)
- {
- TEMP_SET_PT (i + fromlen);
- insert_1 (str + fromlen, tolen - fromlen, 1, 0, 0);
- }
-#endif
+ /* Replace one character with the other,
+ keeping text properties the same. */
+ replace_range_2 (start, i,
+ start + 1, i + fromlen,
+ str, 1, tolen,
+ 1);
+ if (opoint > start)
+ opoint_byte += tolen - fromlen;
}
}
if ((int) flag >= (int) CASE_CAPITALIZE)
inword = SYNTAX (c2) == Sword;
- INC_POS (i);
+ INC_BOTH (start, i);
}
TEMP_SET_PT_BOTH (opoint, opoint_byte);
}
- signal_after_change (start, end - start, end - start);
+ start = XFASTINT (b);
+ if (changed)
+ {
+ signal_after_change (start, end - start, end - start);
+ update_compositions (start, end, CHECK_ALL);
+ }
}
DEFUN ("upcase-region", Fupcase_region, Supcase_region, 2, 2, "r",
- "Convert the region to upper case. In programs, wants two arguments.\n\
-These arguments specify the starting and ending character numbers of\n\
-the region to operate on. When used as a command, the text between\n\
-point and the mark is operated on.\n\
-See also `capitalize-region'.")
- (beg, end)
+ doc: /* Convert the region to upper case. In programs, wants two arguments.
+These arguments specify the starting and ending character numbers of
+the region to operate on. When used as a command, the text between
+point and the mark is operated on.
+See also `capitalize-region'. */)
+ (beg, end)
Lisp_Object beg, end;
{
casify_region (CASE_UP, beg, end);
}
DEFUN ("downcase-region", Fdowncase_region, Sdowncase_region, 2, 2, "r",
- "Convert the region to lower case. In programs, wants two arguments.\n\
-These arguments specify the starting and ending character numbers of\n\
-the region to operate on. When used as a command, the text between\n\
-point and the mark is operated on.")
- (beg, end)
+ doc: /* Convert the region to lower case. In programs, wants two arguments.
+These arguments specify the starting and ending character numbers of
+the region to operate on. When used as a command, the text between
+point and the mark is operated on. */)
+ (beg, end)
Lisp_Object beg, end;
{
casify_region (CASE_DOWN, beg, end);
}
DEFUN ("capitalize-region", Fcapitalize_region, Scapitalize_region, 2, 2, "r",
- "Convert the region to capitalized form.\n\
-Capitalized form means each word's first character is upper case\n\
-and the rest of it is lower case.\n\
-In programs, give two arguments, the starting and ending\n\
-character positions to operate on.")
- (beg, end)
+ doc: /* Convert the region to capitalized form.
+Capitalized form means each word's first character is upper case
+and the rest of it is lower case.
+In programs, give two arguments, the starting and ending
+character positions to operate on. */)
+ (beg, end)
Lisp_Object beg, end;
{
casify_region (CASE_CAPITALIZE, beg, end);
DEFUN ("upcase-initials-region", Fupcase_initials_region,
Supcase_initials_region, 2, 2, "r",
- "Upcase the initial of each word in the region.\n\
-Subsequent letters of each word are not changed.\n\
-In programs, give two arguments, the starting and ending\n\
-character positions to operate on.")
- (beg, end)
+ doc: /* Upcase the initial of each word in the region.
+Subsequent letters of each word are not changed.
+In programs, give two arguments, the starting and ending
+character positions to operate on. */)
+ (beg, end)
Lisp_Object beg, end;
{
casify_region (CASE_CAPITALIZE_UP, beg, end);
int farend;
int iarg;
- CHECK_NUMBER (arg, 0);
+ CHECK_NUMBER (arg);
iarg = XINT (arg);
farend = scan_words (PT, iarg);
if (!farend)
}
DEFUN ("upcase-word", Fupcase_word, Supcase_word, 1, 1, "p",
- "Convert following word (or ARG words) to upper case, moving over.\n\
-With negative argument, convert previous words but do not move.\n\
-See also `capitalize-word'.")
- (arg)
+ doc: /* Convert following word (or ARG words) to upper case, moving over.
+With negative argument, convert previous words but do not move.
+See also `capitalize-word'. */)
+ (arg)
Lisp_Object arg;
{
Lisp_Object beg, end;
}
DEFUN ("downcase-word", Fdowncase_word, Sdowncase_word, 1, 1, "p",
- "Convert following word (or ARG words) to lower case, moving over.\n\
-With negative argument, convert previous words but do not move.")
- (arg)
+ doc: /* Convert following word (or ARG words) to lower case, moving over.
+With negative argument, convert previous words but do not move. */)
+ (arg)
Lisp_Object arg;
{
Lisp_Object beg, end;
}
DEFUN ("capitalize-word", Fcapitalize_word, Scapitalize_word, 1, 1, "p",
- "Capitalize the following word (or ARG words), moving over.\n\
-This gives the word(s) a first character in upper case\n\
-and the rest lower case.\n\
-With negative argument, capitalize previous words but do not move.")
- (arg)
+ doc: /* Capitalize the following word (or ARG words), moving over.
+This gives the word(s) a first character in upper case
+and the rest lower case.
+With negative argument, capitalize previous words but do not move. */)
+ (arg)
Lisp_Object arg;
{
Lisp_Object beg, end;
return Qnil;
}
\f
+void
syms_of_casefiddle ()
{
Qidentity = intern ("identity");
defsubr (&Scapitalize_word);
}
+void
keys_of_casefiddle ()
{
initial_define_key (control_x_map, Ctl('U'), "upcase-region");
initial_define_key (meta_map, 'l', "downcase-word");
initial_define_key (meta_map, 'c', "capitalize-word");
}
+
+/* arch-tag: 60a73c66-5489-47e7-a81f-cead4057c526
+ (do not change this comment) */