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justify: never break a line in leading whitespace 

This fixes https://savannah.gnu.org/bugs/?57984.

The bug was old -- it existed since at least version 2.0.6.
master
Benno Schulenberg 2020-03-11 13:46:46 +01:00
parent ebf9279f95
commit 01477d3b81
1 changed files with 7 additions and 0 deletions
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7
src/text.c
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@ -1367,6 +1367,13 @@ ssize_t break_line(const char *line, ssize_t goal, bool snap_at_nl)
int charlen = 0;
/* The length of the current character, in bytes. */
/* Skip over leading whitespace, where a line should never be broken. */
while (*line != '\0' && is_blank_mbchar(line)) {
charlen = advance_over(line, &column);
line += charlen;
index += charlen;
}
/* Find the last blank that does not overshoot the target column. */
while (*line != '\0' && ((ssize_t)column <= goal)) {
if (is_blank_mbchar(line))