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ex_getln: Clean up draw_cmdline a bit

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This commit is contained in:
ZyX
2017-03-26 01:34:13 +03:00
parent 2b377d89db
commit 90f62cc749
1 changed files with 33 additions and 37 deletions
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70
src/nvim/ex_getln.c
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@@ -2174,69 +2174,64 @@ void free_cmdline_buf(void)
*/
static void draw_cmdline(int start, int len)
{
int i;
if (cmdline_star > 0)
for (i = 0; i < len; ++i) {
if (cmdline_star > 0) {
for (int i = 0; i < len; i++) {
msg_putchar('*');
if (has_mbyte)
if (has_mbyte) {
i += (*mb_ptr2len)(ccline.cmdbuff + start + i) - 1;
}
}
else if (p_arshape && !p_tbidi && enc_utf8 && len > 0) {
} else if (p_arshape && !p_tbidi && enc_utf8 && len > 0) {
static int buflen = 0;
char_u *p;
int j;
int newlen = 0;
int mb_l;
int pc, pc1 = 0;
int prev_c = 0;
int prev_c1 = 0;
int u8c;
int u8cc[MAX_MCO];
int nc = 0;
/*
* Do arabic shaping into a temporary buffer. This is very
* inefficient!
*/
// Do arabic shaping into a temporary buffer. This is very
// inefficient!
if (len * 2 + 2 > buflen) {
/* Re-allocate the buffer. We keep it around to avoid a lot of
* alloc()/free() calls. */
// Re-allocate the buffer. We keep it around to avoid a lot of
// alloc()/free() calls.
xfree(arshape_buf);
buflen = len * 2 + 2;
arshape_buf = xmalloc(buflen);
}
int newlen = 0;
if (utf_iscomposing(utf_ptr2char(ccline.cmdbuff + start))) {
/* Prepend a space to draw the leading composing char on. */
// Prepend a space to draw the leading composing char on.
arshape_buf[0] = ' ';
newlen = 1;
}
for (j = start; j < start + len; j += mb_l) {
p = ccline.cmdbuff + j;
u8c = utfc_ptr2char_len(p, u8cc, start + len - j);
mb_l = utfc_ptr2len_len(p, start + len - j);
int mb_l;
int prev_c = 0;
int prev_c1 = 0;
for (int i = start; i < start + len; i += mb_l) {
char_u *p = ccline.cmdbuff + i;
int u8cc[MAX_MCO];
int u8c = utfc_ptr2char_len(p, u8cc, start + len - i);
mb_l = utfc_ptr2len_len(p, start + len - i);
if (arabic_char(u8c)) {
/* Do Arabic shaping. */
int pc;
int pc1 = 0;
int nc = 0;
// Do Arabic shaping.
if (cmdmsg_rl) {
/* displaying from right to left */
// Displaying from right to left.
pc = prev_c;
pc1 = prev_c1;
prev_c1 = u8cc[0];
if (j + mb_l >= start + len)
if (i + mb_l >= start + len) {
nc = NUL;
else
} else {
nc = utf_ptr2char(p + mb_l);
}
} else {
/* displaying from left to right */
if (j + mb_l >= start + len)
// Displaying from left to right.
if (i + mb_l >= start + len) {
pc = NUL;
else {
} else {
int pcc[MAX_MCO];
pc = utfc_ptr2char_len(p + mb_l, pcc,
start + len - j - mb_l);
pc = utfc_ptr2char_len(p + mb_l, pcc, start + len - i - mb_l);
pc1 = pcc[0];
}
nc = prev_c;
@@ -2260,8 +2255,9 @@ static void draw_cmdline(int start, int len)
}
msg_outtrans_len(arshape_buf, newlen);
} else
} else {
msg_outtrans_len(ccline.cmdbuff + start, len);
}
}
/*