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painting: when finding an end match, set its multidata right away 

When leaving the multidata unset (as was done until now) and the
end match is offscreen, then this could lead to miscolorings later
when jumping over this end match instead of scrolling past it.

This fixes https://savannah.gnu.org/bugs/?60012.

Bug existed since before version 2.1.10.
master
Benno Schulenberg 2021-02-05 16:05:38 +01:00
parent 1fdd23d347
commit 7e04fea92b
1 changed files with 10 additions and 1 deletions
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11
src/winio.c
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@ -2500,7 +2500,7 @@ void draw_row(int row, const char *converted, linestruct *line, size_t from_col)
/* The match positions of a single-line regex. */
const linestruct *start_line = line->prev;
/* The first line before line that matches 'start'. */
const linestruct *end_line = line;
linestruct *end_line = line;
/* The line that matches 'end'. */
regmatch_t startmatch, endmatch;
/* The match positions of the start and end regexes. */
@ -2720,7 +2720,16 @@ void draw_row(int row, const char *converted, linestruct *line, size_t from_col)
wattron(edit, varnish->attributes);
mvwaddnstr(edit, row, margin + start_col, thetext, -1);
wattroff(edit, varnish->attributes);
line->multidata[varnish->id] = STARTSHERE;
if (end_line->multidata == NULL) {
end_line->multidata = nmalloc(openfile->syntax->nmultis * sizeof(short));
for (short item = 0; item < openfile->syntax->nmultis; item++)
end_line->multidata[item] = 0;
}
end_line->multidata[varnish->id] = ENDSHERE;
break;
}
}