Fix the following testcase by disabling global substitution if the regex

is anchored to the start of line, there can be only one subst.
echo "aah" | sed 's/^a/b/g'

1 files changed, 5 insertions, 3 deletions

diff --git a/editors/sed.c b/editors/sed.c
index 5bfe924a5..75ed53eb7 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -43,11 +43,11 @@
         Unsupported features:
 
          - GNU extensions
-         - and lots, lots more.
+         - and more.
 
         Bugs:
         
-         - Cant subst globally using ^ or $ in regex, eg. "aah" | sed 's/^a/b/g'
+         - lots
 
         Reference http://www.opengroup.org/onlinepubs/007904975/utilities/sed.html
 */
@@ -299,7 +299,9 @@ static int parse_subst_cmd(sed_cmd_t * const sed_cmd, const char *substr)
         while (substr[++idx]) {
                 switch (substr[idx]) {
                 case 'g':
-                        sed_cmd->sub_g = 1;
+                        if (match[0] != '^') {
+                                sed_cmd->sub_g = 1;
+                        }
                         break;
                         /* Hmm, i dont see the I option mentioned in the standard */
                 case 'I':