[hackers] [sbase] sort: replace loop with MIN() || Jakob Kramer

[git]

commit e535e8d88a12459ddbf3542af6483b242cbd09e0
Author: Jakob Kramer <jakob.kra...@gmx.de>
Date:   Sat May 3 18:52:18 2014 +0200

    sort: replace loop with MIN()

diff --git a/sort.c b/sort.c
index deab422..3614853 100644
--- a/sort.c
+++ b/sort.c
@@ -213,17 +213,14 @@ columns(char *line, const struct keydef *kd)
 {
        char *start, *end;
        char *res;
-       unsigned int i;
 
        start = skip_columns(line, kd->start_column);
-       for(i = 1; i < kd->start_char && *start && !isblank(*start); i++)
-               start++;
+       start += MIN(kd->start_char, next_blank(start) - start) - 1;
 
        if(kd->end_column) {
                end = skip_columns(line, kd->end_column);
                if(kd->end_char)
-                       for(i = 1; i < kd->end_char && *end && !isblank(*end); 
i++)
-                               end++;
+                       end += MIN(kd->end_char, next_blank(end) - end);
                else
                        end = next_blank(end);
        } else {