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Fix the display of utf8 sequences in the gui

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term_addstr() had a long-standing fixme that suggested it didn't
take into account the string encoding when calculating the string
length.
The BIG5 code path is untested.
This commit is contained in:
LemonBoy 2015-10-02 14:04:04 +02:00
parent acbe2ecac2
commit 2e860abd2b
4 changed files with 55 additions and 9 deletions
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2
src/fe-common/core/utf8.h
View File

@ -8,6 +8,8 @@
#define is_big5_hi(hi) (0x81 <= (hi) && (hi) <= 0xFE)
#define is_big5(hi,lo) (is_big5_hi(hi) && is_big5_lo(lo))
int strlen_big5(const unsigned char *str);
/* Returns width for character (0-2). */
int mk_wcwidth(unichar c);

3
src/fe-text/gui-printtext.c
View File

@ -227,8 +227,7 @@ static void sig_gui_print_text(WINDOW_REC *window, void *fgcolor,
term_move(root_window, next_xpos, next_ypos);
if (flags & GUI_PRINT_FLAG_CLRTOEOL)
term_clrtoeol(root_window);
term_addstr(root_window, str);
next_xpos += strlen(str); /* FIXME utf8 or big5 */
next_xpos += term_addstr(root_window, str);
return;
}

53
src/fe-text/term-terminfo.c
View File

@ -522,15 +522,60 @@ void term_add_unichar(TERM_WINDOW *window, unichar chr)
}
}
void term_addstr(TERM_WINDOW *window, const char *str)
int term_addstr(TERM_WINDOW *window, const char *str)
{
int len;
int i, len, raw_len;
unichar *tmp;
const char *ptr;
if (vcmove) term_move_real();
len = strlen(str); /* FIXME utf8 or big5 */
raw_len = strlen(str);
/* The string length depends on the terminal encoding */
switch (term_type) {
case TERM_TYPE_BIG5:
len = strlen_big5((const unsigned char *)str);
break;
case TERM_TYPE_UTF8:
len = g_utf8_strlen(str, -1);
break;
default:
len = strlen(str);
break;
}
tmp = calloc(len, sizeof(unichar));
if (tmp == NULL)
return 0;
switch (term_type) {
case TERM_TYPE_BIG5:
big5_to_unichars(str, tmp);
break;
case TERM_TYPE_UTF8:
ptr = str;
for (i = 0; i < len; i++) {
tmp[i] = g_utf8_get_char(ptr);
ptr = g_utf8_next_char(ptr);
}
break;
default:
for (i = 0; i < len; i++)
tmp[i] = str[i];
}
for (len = i = 0; i < len; i++)
len += unichar_isprint(tmp[i]) ? mk_wcwidth(tmp[i]) : 1;
free(tmp);
term_printed_text(len);
fwrite(str, 1, len, window->term->out);
/* Use strlen() here since we need the number of raw bytes */
fwrite(str, 1, raw_len, window->term->out);
return len;
}
void term_clrtoeol(TERM_WINDOW *window)

2
src/fe-text/term.h
View File

@ -83,7 +83,7 @@ void term_set_color(TERM_WINDOW *window, int col);
void term_move(TERM_WINDOW *window, int x, int y);
void term_addch(TERM_WINDOW *window, char chr);
void term_add_unichar(TERM_WINDOW *window, unichar chr);
void term_addstr(TERM_WINDOW *window, const char *str);
int term_addstr(TERM_WINDOW *window, const char *str);
void term_clrtoeol(TERM_WINDOW *window);
void term_move_cursor(int x, int y);