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screen: don't push the longer-line indicator ($) to the next row

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If the last two columns of a row would be taken up by a double-width
character (and the line is longer than that), don't print it, because
it wouldn't leave any room for the $ character.

This fixes https://savannah.gnu.org/bugs/?50491.
Reported-by: David Lawrence Ramsey <pooka109@gmail.com>
This commit is contained in:
Benno Schulenberg 2017-03-08 14:32:36 +01:00
parent 3c3eb4909d
commit 69784d51db
1 changed files with 4 additions and 0 deletions
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4
src/winio.c
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@ -1928,6 +1928,10 @@ char *display_string(const char *buf, size_t start_col, size_t span,
/* Null-terminate converted. */
converted[index] = '\0';
/* If there is more text than can be shown, make room for the $. */
if (*buf != '\0' && isdata && !ISSET(SOFTWRAP))
span--;
/* Make sure converted takes up no more than span columns. */
index = actual_x(converted, span);
null_at(&converted, index);