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perf: reuse fast character size calculation algorithm from getvcol()

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This commit is contained in:
VanaIgr
2023-12-18 20:57:04 -06:00
committed by zeertzjq
parent b5653984e5
commit cdf848a314
10 changed files with 497 additions and 477 deletions
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130
src/nvim/ops.c
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@@ -387,17 +387,18 @@ static void shift_block(oparg_T *oap, int amount)
}
// TODO(vim): is passing bd.textstart for start of the line OK?
chartabsize_T cts;
init_chartabsize_arg(&cts, curwin, curwin->w_cursor.lnum,
bd.start_vcol, bd.textstart, bd.textstart);
while (ascii_iswhite(*cts.cts_ptr)) {
incr = lbr_chartabsize_adv(&cts);
CharsizeArg arg;
CSType cstype = init_charsize_arg(&arg, curwin, curwin->w_cursor.lnum, bd.textstart);
StrCharInfo ci = utf_ptr2StrCharInfo(bd.textstart);
int vcol = bd.start_vcol;
while (ascii_iswhite(ci.chr.value)) {
incr = win_charsize(cstype, vcol, ci.ptr, ci.chr.value, &arg).width;
ci = utfc_next(ci);
total += incr;
cts.cts_vcol += incr;
vcol += incr;
}
bd.textstart = cts.cts_ptr;
bd.start_vcol = cts.cts_vcol;
clear_chartabsize_arg(&cts);
bd.textstart = ci.ptr;
bd.start_vcol = vcol;
int tabs = 0;
int spaces = 0;
@@ -448,16 +449,13 @@ static void shift_block(oparg_T *oap, int amount)
// The character's column is in "bd.start_vcol".
colnr_T non_white_col = bd.start_vcol;
chartabsize_T cts;
init_chartabsize_arg(&cts, curwin, curwin->w_cursor.lnum,
non_white_col, bd.textstart, non_white);
while (ascii_iswhite(*cts.cts_ptr)) {
incr = lbr_chartabsize_adv(&cts);
cts.cts_vcol += incr;
CharsizeArg arg;
CSType cstype = init_charsize_arg(&arg, curwin, curwin->w_cursor.lnum, bd.textstart);
while (ascii_iswhite(*non_white)) {
incr = win_charsize(cstype, non_white_col, non_white, (uint8_t)(*non_white), &arg).width;
non_white_col += incr;
non_white++;
}
non_white_col = cts.cts_vcol;
non_white = cts.cts_ptr;
clear_chartabsize_arg(&cts);
const colnr_T block_space_width = non_white_col - oap->start_vcol;
// We will shift by "total" or "block_space_width", whichever is less.
@@ -478,19 +476,17 @@ static void shift_block(oparg_T *oap, int amount)
if (bd.startspaces) {
verbatim_copy_width -= bd.start_char_vcols;
}
init_chartabsize_arg(&cts, curwin, 0, verbatim_copy_width,
bd.textstart, verbatim_copy_end);
while (cts.cts_vcol < destination_col) {
incr = lbr_chartabsize(&cts);
if (cts.cts_vcol + incr > destination_col) {
cstype = init_charsize_arg(&arg, curwin, 0, bd.textstart);
StrCharInfo ci = utf_ptr2StrCharInfo(verbatim_copy_end);
while (verbatim_copy_width < destination_col) {
incr = win_charsize(cstype, verbatim_copy_width, ci.ptr, ci.chr.value, &arg).width;
if (verbatim_copy_width + incr > destination_col) {
break;
}
cts.cts_vcol += incr;
MB_PTR_ADV(cts.cts_ptr);
verbatim_copy_width += incr;
ci = utfc_next(ci);
}
verbatim_copy_width = cts.cts_vcol;
verbatim_copy_end = cts.cts_ptr;
clear_chartabsize_arg(&cts);
verbatim_copy_end = ci.ptr;
// If "destination_col" is different from the width of the initial
// part of the line that will be copied, it means we encountered a tab
@@ -3250,19 +3246,19 @@ void do_put(int regname, yankreg_T *reg, int dir, int count, int flags)
}
// get the old line and advance to the position to insert at
char *oldp = get_cursor_line_ptr();
size_t oldlen = strlen(oldp);
chartabsize_T cts;
init_chartabsize_arg(&cts, curwin, curwin->w_cursor.lnum, 0, oldp, oldp);
while (cts.cts_vcol < col && *cts.cts_ptr != NUL) {
// Count a tab for what it's worth (if list mode not on)
incr = lbr_chartabsize_adv(&cts);
cts.cts_vcol += incr;
CharsizeArg arg;
CSType cstype = init_charsize_arg(&arg, curwin, curwin->w_cursor.lnum, oldp);
StrCharInfo ci = utf_ptr2StrCharInfo(oldp);
vcol = 0;
while (vcol < col && *ci.ptr != NUL) {
incr = win_charsize(cstype, vcol, ci.ptr, ci.chr.value, &arg).width;
vcol += incr;
ci = utfc_next(ci);
}
vcol = cts.cts_vcol;
char *ptr = cts.cts_ptr;
size_t oldlen = (size_t)(ci.ptr - oldp) + strlen(ci.ptr);
char *ptr = ci.ptr;
bd.textcol = (colnr_T)(ptr - oldp);
clear_chartabsize_arg(&cts);
shortline = (vcol < col) || (vcol == col && !*ptr);
@@ -3286,16 +3282,15 @@ void do_put(int regname, yankreg_T *reg, int dir, int count, int flags)
yanklen = (int)strlen(y_array[i]);
if ((flags & PUT_BLOCK_INNER) == 0) {
// calculate number of spaces required to fill right side of
// block
// calculate number of spaces required to fill right side of block
spaces = y_width + 1;
init_chartabsize_arg(&cts, curwin, 0, 0, y_array[i], y_array[i]);
for (int j = 0; j < yanklen; j++) {
spaces -= lbr_chartabsize(&cts);
cts.cts_ptr++;
cts.cts_vcol = 0;
cstype = init_charsize_arg(&arg, curwin, 0, y_array[i]);
ci = utf_ptr2StrCharInfo(y_array[i]);
while (*ci.ptr != NUL) {
spaces -= win_charsize(cstype, 0, ci.ptr, ci.chr.value, &arg).width;
ci = utfc_next(ci);
}
clear_chartabsize_arg(&cts);
if (spaces < 0) {
spaces = 0;
}
@@ -4228,25 +4223,25 @@ static void block_prep(oparg_T *oap, struct block_def *bdp, linenr_T lnum, bool
char *line = ml_get(lnum);
char *prev_pstart = line;
chartabsize_T cts;
init_chartabsize_arg(&cts, curwin, lnum, bdp->start_vcol, line, line);
while (cts.cts_vcol < oap->start_vcol && *cts.cts_ptr != NUL) {
// Count a tab for what it's worth (if list mode not on)
incr = lbr_chartabsize(&cts);
cts.cts_vcol += incr;
if (ascii_iswhite(*cts.cts_ptr)) {
CharsizeArg arg;
CSType cstype = init_charsize_arg(&arg, curwin, lnum, line);
StrCharInfo ci = utf_ptr2StrCharInfo(line);
int vcol = bdp->start_vcol;
while (vcol < oap->start_vcol && *ci.ptr != NUL) {
incr = win_charsize(cstype, vcol, ci.ptr, ci.chr.value, &arg).width;
vcol += incr;
if (ascii_iswhite(ci.chr.value)) {
bdp->pre_whitesp += incr;
bdp->pre_whitesp_c++;
} else {
bdp->pre_whitesp = 0;
bdp->pre_whitesp_c = 0;
}
prev_pstart = cts.cts_ptr;
MB_PTR_ADV(cts.cts_ptr);
prev_pstart = ci.ptr;
ci = utfc_next(ci);
}
bdp->start_vcol = cts.cts_vcol;
char *pstart = cts.cts_ptr;
clear_chartabsize_arg(&cts);
bdp->start_vcol = vcol;
char *pstart = ci.ptr;
bdp->start_char_vcols = incr;
if (bdp->start_vcol < oap->start_vcol) { // line too short
@@ -4283,17 +4278,18 @@ static void block_prep(oparg_T *oap, struct block_def *bdp, linenr_T lnum, bool
}
}
} else {
init_chartabsize_arg(&cts, curwin, lnum, bdp->end_vcol, line, pend);
cstype = init_charsize_arg(&arg, curwin, lnum, line);
ci = utf_ptr2StrCharInfo(pend);
vcol = bdp->end_vcol;
char *prev_pend = pend;
while (cts.cts_vcol <= oap->end_vcol && *cts.cts_ptr != NUL) {
// Count a tab for what it's worth (if list mode not on)
prev_pend = cts.cts_ptr;
incr = lbr_chartabsize_adv(&cts);
cts.cts_vcol += incr;
while (vcol <= oap->end_vcol && *ci.ptr != NUL) {
prev_pend = ci.ptr;
incr = win_charsize(cstype, vcol, ci.ptr, ci.chr.value, &arg).width;
vcol += incr;
ci = utfc_next(ci);
}
bdp->end_vcol = cts.cts_vcol;
pend = cts.cts_ptr;
clear_chartabsize_arg(&cts);
bdp->end_vcol = vcol;
pend = ci.ptr;
if (bdp->end_vcol <= oap->end_vcol
&& (!is_del