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Merge linewrap changes

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Wed Jul 17 11:29:26 1996  Miles Bader  <miles@gnu.ai.mit.edu>

	* stdio/linewrap.c (lwupdate): Fix boundary condition where a
 	word extends right up to rmargin.

	* stdio/linewrap.c (lwupdate): When we've done a word wrap and
	output the wrap margin, set point_col to wmargin.
	Use negative point_col to deal with a wmargin of 0.
	(line_wrap_point): Return 0 for a negative point_col.
	(line_wrap_stream): Make wmargin ssize_t.
	* stdio/linewrap.h (struct line_wrap_data): Make wmargin &
 	point_col ssize_t.
	(line_wrap_stream): Make wmargin ssize_t.
	(line_wrap_point): Return 0 for a negative point_col.

Tue Jul 16 00:18:19 1996  Miles Bader  <miles@gnu.ai.mit.edu>

	* stdio/linewrap.c (__line_wrap_update): Add hackery from flshfp
 	to fiddle __put_limit in conjunction with __linebuf_active.
This commit is contained in:
Miles Bader
1996-07-17 18:46:54 +00:00
parent e964b97666
commit 8a5776e6fe
3 changed files with 26 additions and 6 deletions
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10
stdio/linewrap.h
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@ -34,13 +34,13 @@ __BEGIN_DECLS
struct line_wrap_data
{
size_t lmargin, rmargin; /* Left and right margins. */
size_t wmargin; /* Margin to wrap to, or -1 to truncate. */
ssize_t wmargin; /* Margin to wrap to, or -1 to truncate. */
/* Point in stdio buffer to which we've processed for wrapping, but
not output. */
size_t point_offs;
/* Output column at POINT_OFFS. */
size_t point_col;
/* Output column at POINT_OFFS, or -1 meaning 0 but don't add lmargin. */
ssize_t point_col;
/* Original cookie and hooks from the stream. */
void *cookie;
@ -57,7 +57,7 @@ struct line_wrap_data
simply dropped until a newline. Returns STREAM after modifying it, or
NULL if there was an error. */
FILE *line_wrap_stream (FILE *stream,
size_t lmargin, size_t rmargin, size_t wmargin);
size_t lmargin, size_t rmargin, ssize_t wmargin);
/* Remove the hooks placed in STREAM by `line_wrap_stream'. */
void line_unwrap_stream (FILE *stream);
@ -190,7 +190,7 @@ extern inline size_t
line_wrap_point (FILE *stream)
{
struct line_wrap_data *d = __line_wrap_update (stream);
return d ? d->point_col : -1;
return d ? (d->point_col >= 0 ? d->point_col : 0) : -1;
}
#endif /* Optimizing. */