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selection: find_word_boundary_{left,right}: handle multi-column characters

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Daniel Eklöf 2021-01-03 14:07:40 +01:00
parent b22091a8c9
commit 3863a61ba6
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GPG key ID: 5BBD4992C116573F
1 changed files with 40 additions and 8 deletions
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48
selection.c
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@ -243,6 +243,14 @@ find_word_boundary_left(struct terminal *term, struct coord *pos,
const struct row *r = grid_row_in_view(term->grid, pos->row);
wchar_t c = r->cells[pos->col].wc;
while (c == CELL_MULT_COL_SPACER) {
assert(pos->col > 0);
if (pos->col == 0)
return;
pos->col--;
c = r->cells[pos->col].wc;
}
if (c >= CELL_COMB_CHARS_LO &&
c < (CELL_COMB_CHARS_LO + term->composed_count))
{
@ -250,8 +258,8 @@ find_word_boundary_left(struct terminal *term, struct coord *pos,
}
bool initial_is_space = c == 0 || iswspace(c);
bool initial_is_delim = c != 0 && c != CELL_MULT_COL_SPACER &&
!isword(c, spaces_only, term->conf->word_delimiters);
bool initial_is_delim =
c != 0 && !isword(c, spaces_only, term->conf->word_delimiters);
while (true) {
int next_col = pos->col - 1;
@ -267,6 +275,13 @@ find_word_boundary_left(struct terminal *term, struct coord *pos,
const struct row *row = grid_row_in_view(term->grid, next_row);
c = row->cells[next_col].wc;
while (c == CELL_MULT_COL_SPACER) {
assert(next_col > 0);
if (--next_col < 0)
return;
c = row->cells[next_col].wc;
}
if (c >= CELL_COMB_CHARS_LO &&
c < (CELL_COMB_CHARS_LO + term->composed_count))
{
@ -278,8 +293,8 @@ find_word_boundary_left(struct terminal *term, struct coord *pos,
break;
if (!initial_is_space) {
bool is_word = c != 0 && c != CELL_MULT_COL_SPACER &&
isword(c, spaces_only, term->conf->word_delimiters);
bool is_word =
c != 0 && isword(c, spaces_only, term->conf->word_delimiters);
if ((initial_is_delim && (is_word || is_space)) ||
(!initial_is_delim && !is_word))
@ -300,6 +315,14 @@ find_word_boundary_right(struct terminal *term, struct coord *pos,
const struct row *r = grid_row_in_view(term->grid, pos->row);
wchar_t c = r->cells[pos->col].wc;
while (c == CELL_MULT_COL_SPACER) {
assert(pos->col > 0);
if (pos->col == 0)
return;
pos->col--;
c = r->cells[pos->col].wc;
}
if (c >= CELL_COMB_CHARS_LO &&
c < (CELL_COMB_CHARS_LO + term->composed_count))
{
@ -307,8 +330,8 @@ find_word_boundary_right(struct terminal *term, struct coord *pos,
}
bool initial_is_space = c == 0 || iswspace(c);
bool initial_is_delim = c != 0 && c != CELL_MULT_COL_SPACER &&
!isword(c, spaces_only, term->conf->word_delimiters);
bool initial_is_delim =
c != 0 && !isword(c, spaces_only, term->conf->word_delimiters);
while (true) {
int next_col = pos->col + 1;
@ -324,6 +347,15 @@ find_word_boundary_right(struct terminal *term, struct coord *pos,
const struct row *row = grid_row_in_view(term->grid, next_row);
c = row->cells[next_col].wc;
while (c == CELL_MULT_COL_SPACER) {
if (++next_col >= term->cols) {
next_col = 0;
if (++next_row >= term->rows)
return;
}
c = row->cells[next_col].wc;
}
if (c >= CELL_COMB_CHARS_LO &&
c < (CELL_COMB_CHARS_LO + term->composed_count))
{
@ -335,8 +367,8 @@ find_word_boundary_right(struct terminal *term, struct coord *pos,
break;
if (!initial_is_space) {
bool is_word = c != 0 && c != CELL_MULT_COL_SPACER &&
isword(c, spaces_only, term->conf->word_delimiters);
bool is_word =
c != 0 && isword(c, spaces_only, term->conf->word_delimiters);
if ((initial_is_delim && (is_word || is_space)) ||
(!initial_is_delim && !is_word))