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authorJohn R. Lenton <jlenton@gmail.com>2014-01-04 12:52:07 +0000
committerJohn R. Lenton <jlenton@gmail.com>2014-01-04 12:52:07 +0000
commitff9a24f6f7c576e129685ce59cd9e0a87925cef8 (patch)
treefa051b68b874fc29e3a449f19f672a55c3a06c0d /py/objstr.c
parenta58cf679ee466b0bcd873603515a3ef293252b20 (diff)
parent32f88410a153967af3f013d02a1a662aec19ec04 (diff)
downloadmicropython-ff9a24f6f7c576e129685ce59cd9e0a87925cef8.tar.gz
micropython-ff9a24f6f7c576e129685ce59cd9e0a87925cef8.zip
Merge remote-tracking branch 'upstream/master' into list_count
Diffstat (limited to 'py/objstr.c')
-rw-r--r--py/objstr.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/py/objstr.c b/py/objstr.c
index 59547e3cd6..54e6f37705 100644
--- a/py/objstr.c
+++ b/py/objstr.c
@@ -41,9 +41,20 @@ mp_obj_t str_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
int len = strlen(lhs_str);
if (start < 0) {
start = len + start;
+ if (start < 0) {
+ start = 0;
+ }
+ } else if (start > len) {
+ start = len;
}
if (stop <= 0) {
stop = len + stop;
+ // CPython returns empty string in such case
+ if (stop < 0) {
+ stop = start;
+ }
+ } else if (stop > len) {
+ stop = len;
}
return mp_obj_new_str(qstr_from_strn_copy(lhs_str + start, stop - start));
#endif