/* GNU Emacs case conversion functions.
- Copyright (C) 1985, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1985, 1994, 1997 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#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))
{
- tem = Faref (current_buffer->downcase_table, obj);
- if (EQ (tem, Qidentity))
- tem = obj;
+ int flagbits = (CHAR_ALT | CHAR_SUPER | CHAR_HYPER
+ | CHAR_SHIFT | CHAR_CTL | CHAR_META);
+ int flags = XINT (obj) & flagbits;
+
+ c = DOWNCASE (XFASTINT (obj) & ~flagbits);
if (inword)
- obj = tem;
- else if (EQ (tem, obj))
+ XSETFASTINT (obj, c | flags);
+ else if (c == (XFASTINT (obj) & ~flagbits))
{
- tem = Faref (current_buffer->upcase_table, obj);
- if (!EQ (tem, Qidentity))
- obj = tem;
+ c = UPCASE1 ((XFASTINT (obj) & ~flagbits));
+ XSETFASTINT (obj, c | flags);
}
return obj;
}
+
if (STRINGP (obj))
{
+ int multibyte = STRING_MULTIBYTE (obj);
+
obj = Fcopy_sequence (obj);
- len = XSTRING (obj)->size;
- for (i = 0; i < len; i++)
+ len = STRING_BYTES (XSTRING (obj));
+
+ /* Scan all single-byte characters from start of string. */
+ for (i = 0; i < len;)
{
c = XSTRING (obj)->data[i];
+
+ if (multibyte && c >= 0x80)
+ /* A multibyte character can't be handled in this
+ simple loop. */
+ break;
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, j_byte = i;
+ char *buf
+ = (char *) alloca ((len - i) * MAX_MULTIBYTE_LENGTH + i);
+
+ /* Copy data already handled. */
+ bcopy (XSTRING (obj)->data, buf, i);
+
+ /* From now on, I counts bytes. */
+ while (i < len)
+ {
+ 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);
+ i += fromlen;
+ j_byte += CHAR_STRING (c, buf + j_byte);
+ if ((int) flag >= (int) CASE_CAPITALIZE)
+ inword = SYNTAX (c) == Sword;
+ }
+ obj = make_multibyte_string (buf, XSTRING (obj)->size,
+ j_byte);
}
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 i;
register int c;
register int inword = flag == CASE_DOWN;
+ register int multibyte = !NILP (current_buffer->enable_multibyte_characters);
int start, end;
- Lisp_Object ch, downch, val;
+ int start_byte, end_byte;
+ int changed = 0;
if (EQ (b, e))
/* Not modifying because nothing marked */
end = XFASTINT (e);
modify_region (current_buffer, start, end);
record_change (start, end - start);
+ start_byte = CHAR_TO_BYTE (start);
+ end_byte = CHAR_TO_BYTE (end);
- if (NILP (current_buffer->enable_multibyte_characters))
+ for (i = start_byte; i < end_byte; i++, start++)
{
- for (i = start; i < end; i++)
- {
- c = FETCH_BYTE (i);
- if (inword && flag != CASE_CAPITALIZE_UP)
- c = DOWNCASE (c);
- else if (!UPPERCASEP (c)
- && (!inword || flag != CASE_CAPITALIZE_UP))
- c = UPCASE1 (c);
- FETCH_BYTE (i) = c;
- if ((int) flag >= (int) CASE_CAPITALIZE)
- inword = SYNTAX (c) == Sword;
- }
+ int c2;
+ c = c2 = FETCH_BYTE (i);
+ if (multibyte && c >= 0x80)
+ /* A multibyte character can't be handled in this simple loop. */
+ break;
+ if (inword && flag != CASE_CAPITALIZE_UP)
+ c = DOWNCASE (c);
+ else if (!UPPERCASEP (c)
+ && (!inword || flag != CASE_CAPITALIZE_UP))
+ c = UPCASE1 (c);
+ FETCH_BYTE (i) = c;
+ if (c != c2)
+ changed = 1;
+ if ((int) flag >= (int) CASE_CAPITALIZE)
+ inword = SYNTAX (c) == Sword;
}
- else
+ if (i < end_byte)
{
- Lisp_Object down, up;
+ /* The work is not yet finished because of a multibyte character
+ just encountered. */
int opoint = PT;
+ int opoint_byte = PT_BYTE;
+ int c2;
- down = current_buffer->downcase_table;
- up = current_buffer->upcase_table;
- for (i = start; i < end;)
+ while (i < end_byte)
{
- c = FETCH_MULTIBYTE_CHAR (i);
- XSETFASTINT (ch, c);
- downch = Faref (down, ch);
- if (EQ (downch, Qidentity))
- downch = ch;
+ if ((c = FETCH_BYTE (i)) >= 0x80)
+ c = FETCH_MULTIBYTE_CHAR (i);
+ c2 = c;
if (inword && flag != CASE_CAPITALIZE_UP)
- val = downch;
- else if (EQ (downch, ch)
+ c2 = DOWNCASE (c);
+ else if (!UPPERCASEP (c)
&& (!inword || flag != CASE_CAPITALIZE_UP))
- {
- val = Faref (up, ch);
- if (EQ (val, Qidentity))
- val = ch;
- }
- else
- val = ch;
- if (!EQ (val, ch))
+ c2 = UPCASE1 (c);
+ if (c != c2)
{
int fromlen, tolen, j;
- char workbuf[4], *str;
+ unsigned char str[MAX_MULTIBYTE_LENGTH];
- if (!NATNUMP (val))
- error ("Inappropriate value found in case table");
+ changed = 1;
/* Handle the most likely case */
- if (c < 0400 && XFASTINT (val) < 0400)
- FETCH_BYTE (i) = XFASTINT (val);
- else if (fromlen = CHAR_STRING (c, workbuf, str),
- tolen = CHAR_STRING (XFASTINT (val), workbuf, str),
+ if (c < 0400 && c2 < 0400)
+ FETCH_BYTE (i) = c2;
+ else if (fromlen = CHAR_STRING (c, str),
+ tolen = CHAR_STRING (c2, str),
fromlen == tolen)
{
for (j = 0; j < tolen; ++j)
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);
+ del_range_1 (i + tolen, i + fromlen, 0, 0);
else if (tolen > fromlen)
{
TEMP_SET_PT (i + fromlen);
- insert_1 (str + fromlen, tolen - fromlen, 1, 0);
+ insert_1 (str + fromlen, tolen - fromlen, 1, 0, 0);
}
#endif
}
}
if ((int) flag >= (int) CASE_CAPITALIZE)
- inword = SYNTAX (XFASTINT (val)) == Sword;
- INC_POS (i);
+ inword = SYNTAX (c2) == Sword;
+ INC_BOTH (start, i);
}
- TEMP_SET_PT (opoint);
+ 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");
HCoop / bpt / emacs.git / blobdiff