mirror of
https://github.com/rkd77/elinks.git
synced 2024-08-19 20:44:44 -04:00
Merge with git+ssh://pasky.or.cz/srv/git/elinks.git
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commit
ac1913ff85
@ -168,7 +168,7 @@ AC_HEADER_STDC
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AC_HEADER_SYS_WAIT
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AC_HEADER_TIME
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AC_CHECK_HEADERS(wctype.h wchar.h)
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AC_CHECK_HEADERS(wctype.h)
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AC_CHECK_HEADERS(fcntl.h limits.h time.h unistd.h)
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AC_CHECK_HEADERS(sigaction.h)
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AC_CHECK_HEADERS(arpa/inet.h)
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@ -279,7 +279,7 @@ AC_FUNC_MMAP
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AC_FUNC_STRFTIME
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AC_CHECK_FUNCS(cfmakeraw gethostbyaddr herror strerror)
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AC_CHECK_FUNCS(popen uname access chmod alarm timegm mremap)
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AC_CHECK_FUNCS(strcasecmp strncasecmp strcasestr strstr strchr strrchr wcwidth)
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AC_CHECK_FUNCS(strcasecmp strncasecmp strcasestr strstr strchr strrchr)
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AC_CHECK_FUNCS(memmove bcopy stpcpy strdup index isdigit mempcpy memrchr)
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AC_CHECK_FUNCS(snprintf vsnprintf asprintf vasprintf)
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AC_CHECK_FUNCS(getifaddrs getpwnam inet_pton inet_ntop)
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@ -680,12 +680,32 @@ kbd_field(struct dialog_data *dlg_data, struct widget_data *widget_data)
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if (check_kbd_textinput_key(ev)) {
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unsigned char *text = widget_data->cdata;
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int textlen = strlen(text);
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#ifdef CONFIG_UTF8
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const unsigned char *ins = encode_utf8(get_kbd_key(ev));
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int inslen = utf8charlen(ins);
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#else /* !CONFIG_UTF8 */
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#ifndef CONFIG_UTF8
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/* Both get_kbd_key(ev) and @text
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* are in the terminal's charset. */
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const int inslen = 1;
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#endif /* !CONFIG_UTF8 */
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#else /* CONFIG_UTF8 */
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const unsigned char *ins;
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int inslen;
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if (term->utf8) {
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/* get_kbd_key(ev) is in UCS-4,
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* and @text is in UTF-8. */
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ins = encode_utf8(get_kbd_key(ev));
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/* get_kbd_key(ev) cannot be L'\0'
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* because @check_kbd_textinput_key
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* would have rejected it. So it
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* is OK to use @strlen below. */
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} else {
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/* get_kbd_key(ev) is UCS-4, and @text
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* is in the terminal's charset. */
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int cp = get_opt_codepage_tree(term->spec,
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"charset");
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ins = u2cp_no_nbsp(get_kbd_key(ev), cp);
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}
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inslen = strlen(ins);
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#endif /* CONFIG_UTF8 */
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if (textlen >= widget_data->widget->datalen - inslen)
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goto display_field;
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@ -1,8 +1,5 @@
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/* Charsets convertor */
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#ifndef _XOPEN_SOURCE
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#define _XOPEN_SOURCE /* wcwidth() */
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#endif
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE /* strcasecmp() */
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#endif
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@ -17,9 +14,6 @@
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#include <ctype.h>
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#include <stdlib.h>
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#if HAVE_WCHAR_H
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#include <wchar.h>
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#endif
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#if HAVE_WCTYPE_H
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#include <wctype.h>
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#endif
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@ -558,6 +552,30 @@ invalid_arg:
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* Find out number of standard terminal collumns needed for displaying symbol
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* (glyph) which represents Unicode character c.
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*
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* TODO: Use wcwidth when it is available. This seems to require:
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* - Make the configure script check whether <wchar.h> and wcwidth exist.
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* - Define _XOPEN_SOURCE and include <wchar.h>.
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* - Test that __STDC_ISO_10646__ is defined. (This macro means wchar_t
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* matches ISO 10646 in all locales.)
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* However, these do not suffice, because wcwidth depends on LC_CTYPE
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* in glibc-2.3.6. For instance, wcwidth(0xff20) is -1 when LC_CTYPE
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* is "fi_FI.ISO-8859-1" or "C", but 2 when LC_CTYPE is "fi_FI.UTF-8".
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* <features.h> defines __STDC_ISO_10646__ as 200009L, so 0xff20 means
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* U+FF20 FULLWIDTH COMMERCIAL AT regardless of LC_CTYPE; but this
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* character is apparently not supported in all locales. Why is that?
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* - Perhaps there is standardese that requires supported characters
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* to be convertable to multibyte form. Then ELinks could just pick
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* some UTF-8 locale for its wcwidth purposes.
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* - Perhaps wcwidth can even return different nonnegative values for
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* the same ISO 10646 character in different locales. Then ELinks
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* would have to set LC_CTYPE to match at least the terminal's
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* charset (which may differ from the LC_CTYPE environment variable,
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* especially when the master process is serving a slave terminal).
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* But there is no guarantee that the libc supports all the same
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* charsets as ELinks does.
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* For now, it seems safest to avoid the potentially locale-dependent
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* libc version of wcwidth, and instead use a hardcoded mapping.
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*
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* @return 2 for double-width glyph, 1 for others.
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* TODO: May be extended to return 0 for zero-width glyphs
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* (like composing, maybe unprintable too).
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@ -565,10 +583,6 @@ invalid_arg:
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inline int
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unicode_to_cell(unicode_val_T c)
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{
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#if __STDC_ISO_10646__ && HAVE_WCWIDTH
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if (wcwidth(c) >= 2)
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return 2;
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#else /* !__STDC_ISO_10646__ || !HAVE_WCWIDTH */
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if (c >= 0x1100
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&& (c <= 0x115f /* Hangul Jamo */
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|| c == 0x2329
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@ -584,7 +598,6 @@ unicode_to_cell(unicode_val_T c)
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|| (c >= 0x20000 && c <= 0x2fffd)
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|| (c >= 0x30000 && c <= 0x3fffd)))
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return 2;
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#endif /* !__STDC_ISO_10646__ || !HAVE_WCWIDTH */
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return 1;
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}
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