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Some changes to make doublewidth chars possibly work (or possibly horribly

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break whole utf8 support :)


git-svn-id: http://svn.irssi.org/repos/irssi/trunk@2956 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Timo Sirainen 2002-10-14 18:33:29 +00:00 committed by cras
parent 98316be40d
commit 2aaec5adc7
4 changed files with 120 additions and 17 deletions
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6
src/fe-text/gui-entry.c
View File

@ -104,7 +104,11 @@ static void gui_entry_draw_from(GUI_ENTRY_REC *entry, int pos)
p = entry->scrstart + pos < entry->text_len ?
entry->text + entry->scrstart + pos : empty_str;
for (; *p != '\0' && xpos < end_xpos; p++, xpos++) {
for (; *p != '\0'; p++) {
xpos += utf8_width(*p);
if (xpos > end_xpos)
break;
if (entry->hidden)
term_addch(root_window, ' ');
else if (*p >= 32 && (entry->utf8 || (*p & 127) >= 32))

54
src/fe-text/textbuffer-view.c
View File

@ -152,8 +152,10 @@ view_update_line_cache(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line)
LINE_CACHE_SUB_REC *sub;
GSList *lines;
unsigned char cmd;
const unsigned char *ptr, *last_space_ptr;
const unsigned char *ptr, *next_ptr, *last_space_ptr;
int xpos, pos, indent_pos, last_space, last_color, color, linecount;
int char_len;
unichar chr;
g_return_val_if_fail(line->text != NULL, NULL);
@ -196,7 +198,24 @@ view_update_line_cache(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line)
continue;
}
if (xpos == view->width && sub != NULL &&
if (!view->utf8) {
next_ptr = ptr+1;
char_len = 1;
} else {
char_len = 1;
while (ptr[char_len] != '\0' && char_len < 6)
char_len++;
next_ptr = ptr;
chr = get_utf8_char(&next_ptr, char_len);
if (chr < 0)
char_len = 1;
else
char_len = utf8_width(chr);
next_ptr++;
}
if (xpos + char_len > view->width && sub != NULL &&
(last_space <= indent_pos || last_space <= 10) &&
view->longword_noindent) {
/* long word, remove the indentation from this line */
@ -204,7 +223,7 @@ view_update_line_cache(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line)
sub->indent = 0;
}
if (xpos == view->width) {
if (xpos + char_len > view->width) {
xpos = indent_func == NULL ? indent_pos :
indent_func(view, line, -1);
@ -232,15 +251,14 @@ view_update_line_cache(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line)
continue;
}
if (view->utf8)
get_utf8_char(&ptr, 6);
xpos++;
if (*ptr++ == ' ') {
last_space = xpos-1;
if (*ptr == ' ') {
last_space = xpos;
last_space_ptr = ptr;
last_color = color;
}
xpos += char_len;
ptr = next_ptr;
}
rec = g_malloc(sizeof(LINE_CACHE_REC)-sizeof(LINE_CACHE_SUB_REC) +
@ -309,9 +327,9 @@ static int view_line_draw(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line,
{
INDENT_FUNC indent_func;
LINE_CACHE_REC *cache;
const unsigned char *text, *text_newline;
const unsigned char *text, *end, *text_newline;
unsigned char *tmp;
int xpos, color, drawcount, first, need_move, need_clrtoeol;
int xpos, color, drawcount, first, need_move, need_clrtoeol, char_width;
if (view->dirty) /* don't bother drawing anything - redraw is coming */
return 0;
@ -401,11 +419,16 @@ static int view_line_draw(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line,
continue;
}
if (xpos < term_width) {
const unsigned char *end = text;
if (view->utf8)
get_utf8_char(&end, 6);
end = text;
if (view->utf8) {
unichar chr = get_utf8_char(&end, 6);
char_width = utf8_width(chr);
} else {
char_width = 1;
}
xpos += char_width;
if (xpos <= term_width) {
if (*text >= 32 &&
(end != text || (*text & 127) >= 32)) {
for (; text < end; text++)
@ -419,7 +442,6 @@ static int view_line_draw(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line,
}
}
text++;
xpos++;
}
if (need_clrtoeol && xpos < term_width) {

74
src/fe-text/utf8.c
View File

@ -7,6 +7,10 @@
* Copyright (C) 1999 Tom Tromey
* Copyright (C) 2000 Red Hat, Inc.
*
* UTF-8 width tables based on locale data from GNU libc by
*
* Copyright (C) 1991-2002 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
@ -175,3 +179,73 @@ void utf16_to_utf8(const unichar *str, char *out)
}
*out = '\0';
}
static const unichar wcc[] = {
0x0, 0x300, 0x34F, 0x360, 0x363, 0x483, 0x487, 0x488, 0x48A, 0x591,
0x5A2, 0x5A3, 0x5BA, 0x5BB, 0x5BE, 0x5BF, 0x5C0, 0x5C1, 0x5C3, 0x5C4,
0x5C5, 0x64B, 0x656, 0x670, 0x671, 0x6D6, 0x6E5, 0x6E7, 0x6E9, 0x6EA,
0x6EE, 0x70F, 0x710, 0x711, 0x712, 0x730, 0x74B, 0x7A6, 0x7B1, 0x901,
0x903, 0x93C, 0x93D, 0x941, 0x949, 0x94D, 0x94E, 0x951, 0x955, 0x962,
0x964, 0x981, 0x982, 0x9BC, 0x9BD, 0x9C1, 0x9C5, 0x9CD, 0x9CE, 0x9E2,
0x9E4, 0xA02, 0xA03, 0xA3C, 0xA3D, 0xA41, 0xA43, 0xA47, 0xA49, 0xA4B,
0xA4E, 0xA70, 0xA72, 0xA81, 0xA83, 0xABC, 0xABD, 0xAC1, 0xAC6, 0xAC7,
0xAC9, 0xACD, 0xACE, 0xB01, 0xB02, 0xB3C, 0xB3D, 0xB3F, 0xB40, 0xB41,
0xB44, 0xB4D, 0xB4E, 0xB56, 0xB57, 0xB82, 0xB83, 0xBC0, 0xBC1, 0xBCD,
0xBCE, 0xC3E, 0xC41, 0xC46, 0xC49, 0xC4A, 0xC4E, 0xC55, 0xC57, 0xCBF,
0xCC0, 0xCC6, 0xCC7, 0xCCC, 0xCCE, 0xD41, 0xD44, 0xD4D, 0xD4E, 0xDCA,
0xDCB, 0xDD2, 0xDD5, 0xDD6, 0xDD7, 0xE31, 0xE32, 0xE34, 0xE3B, 0xE47,
0xE4F, 0xEB1, 0xEB2, 0xEB4, 0xEBA, 0xEBB, 0xEBD, 0xEC8, 0xECE, 0xF18,
0xF1A, 0xF35, 0xF36, 0xF37, 0xF38, 0xF39, 0xF3A, 0xF71, 0xF7F, 0xF80,
0xF85, 0xF86, 0xF88, 0xF90, 0xF98, 0xF99, 0xFBD, 0xFC6, 0xFC7, 0x102D,
0x1031, 0x1032, 0x1033, 0x1036, 0x1038, 0x1039, 0x103A, 0x1058, 0x105A,
0x1100, 0x1160, 0x17B7, 0x17BE, 0x17C6, 0x17C7, 0x17C9, 0x17D4, 0x180B,
0x180F, 0x18A9, 0x18AA, 0x200B, 0x2010, 0x202A, 0x202F, 0x206A, 0x2070,
0x20D0, 0x20E4, 0x2E80, 0x3008, 0x300C, 0x3014, 0x3016, 0x3018, 0x301C,
0x302A, 0x3030, 0x303F, 0x3041, 0x3095, 0x3099, 0x309B, 0xA4C7, 0xAC00,
0xD7A4, 0xF8F0, 0xF900, 0xFA2E, 0xFB1E, 0xFB1F, 0xFE20, 0xFE24, 0xFE30,
0xFE6C, 0xFEFF, 0xFF00, 0xFF01, 0xFF5F, 0xFFE0, 0xFFE7, 0xFFF9, 0xFFFC,
#if 1
0x1D167, 0x1D16A, 0x1D173, 0x1D183, 0x1D185, 0x1D18C, 0x1D1AA, 0x1D1AE,
0x20000, 0x2A6D7, 0x2F800, 0x2FA1E, 0xE0001, 0xE0002, 0xE0020, 0xE0080
#endif
};
static const int wccnum = sizeof(wcc) / sizeof(wcc[0]) - 1;
static const char wws[] = {
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0,
1, 2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2,
1, 2, 1, 2, 0, 2, 1, 2, 1, 0, 2, 1, 2, 1, 0, 2, 1, 0, 1, 0, 1, 2, 1, 0,
1, 2, 1, 2, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 2, 1, 0, 1, 0, 1, -1
};
int utf8_width(unichar c)
{
int p, q, r;
unichar d;
if (c < wcc[1])
return 1;
p = 0;
q = wccnum;
while (p < q - 1) {
r = (p + q)/2;
d = wcc[r];
if (d < c)
p = r;
else if (d > c)
q = r;
else
return wws[r];
}
return wws[p];
}

3
src/fe-text/utf8.h
View File

@ -18,4 +18,7 @@ int utf16_char_to_utf8(unichar c, char *outbuf);
Make sure out is at least 6 x length of str. */
void utf16_to_utf8(const unichar *str, char *out);
/* Returns width for character (0-2). */
int utf8_width(unichar c);
#endif