look: fix problem with !isalnum() words

for example "$ look apple-pie"

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/misc-utils/look.c b/misc-utils/look.c
index f7bcc16e00b5bfaf0932cb75e0037d1674afc1e7..7ffd8a3e2db0a066a6641c3f11fc176f5da08c44 100644 (file)
--- a/misc-utils/look.c
+++ b/misc-utils/look.c
@@ -327,9 +327,12 @@ compare(char *s2, char *s2end) {
        /* copy, ignoring things that should be ignored */
        p = comparbuf;
        i = stringlen;
-       while(s2 < s2end && *s2 != '\n' && i--) {
+       while(s2 < s2end && *s2 != '\n' && i) {
                if (!dflag || isalnum(*s2))
+               {
                        *p++ = *s2;
+                       i--;
+               }
                s2++;
        }
        *p = 0;

diff --git a/tests/expected/ts-look-separator b/tests/expected/ts-look-separator
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..8c19d03622ae742e6258ad2542acf5c8bd0db07c 100644 (file)
--- a/tests/expected/ts-look-separator
+++ b/tests/expected/ts-look-separator
@@ -0,0 +1 @@
+apple-pie