JehanneOS/mksh
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when outputting in a row x column formatted way, but the available space

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on the screen is not enough for two columns, just output the text line by
line, instead of trying to format it; gets rid of superfluous empty lines
if we did not even have space for one column on the screen (x_cols)

noticed by Gábor Gergely in irc, thanks!
This commit is contained in:
tg
2009-02-22 18:02:31 +00:00
parent 5e22cb486f
commit 1b3e4a3a2e
3 changed files with 17 additions and 7 deletions
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16
misc.c
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@ -6,7 +6,7 @@
#include <grp.h>
#endif
__RCSID("$MirOS: src/bin/mksh/misc.c,v 1.94 2008/12/17 19:37:08 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/misc.c,v 1.95 2009/02/22 18:02:31 tg Exp $");
#undef USE_CHVT
#if defined(TIOCSCTTY) && !defined(MKSH_SMALL)
@ -936,13 +936,22 @@ print_columns(struct shf *shf, int n,
char *str = alloc(max_width + 1, ATEMP);
int i, r, c, rows, cols, nspace;
/* ensure x_cols is valid first */
if (x_cols < MIN_COLS)
change_winsz();
/* max_width + 1 for the space. Note that no space
* is printed after the last column to avoid problems
* with terminals that have auto-wrap.
*/
cols = x_cols / (max_width + 1);
if (!cols)
cols = 1;
/* if we can only print one column anyway, skip the goo */
if (cols < 2) {
for (i = 0; i < n; ++i)
shf_fprintf(shf, "%s \n",
(*func)(arg, i, str, max_width + 1));
goto out;
}
rows = (n + cols - 1) / cols;
if (prefcol && n && cols > rows) {
int tmp = rows;
@ -969,6 +978,7 @@ print_columns(struct shf *shf, int n,
}
shf_putchar('\n', shf);
}
out:
afree(str, ATEMP);
}