diff options
Diffstat (limited to 'string.c')
| -rw-r--r-- | string.c | 9 |
1 files changed, 8 insertions, 1 deletions
@@ -94,6 +94,7 @@ VALUE rb_cSymbol; #define is_ascii_string(str) (rb_enc_str_coderange(str) == ENC_CODERANGE_7BIT) #define IS_7BIT(str) (ENC_CODERANGE(str) == ENC_CODERANGE_7BIT) +#define is_broken_string(str) (rb_enc_str_coderange(str) == ENC_CODERANGE_BROKEN) VALUE rb_fs; @@ -1443,6 +1444,9 @@ rb_str_index(VALUE str, VALUE sub, long offset) rb_encoding *enc; enc = rb_enc_check(str, sub); + if (is_broken_string(sub)) { + return -1; + } len = str_strlen(str, enc); slen = str_strlen(sub, enc); if (offset < 0) { @@ -1553,6 +1557,9 @@ rb_str_rindex(VALUE str, VALUE sub, long pos) int asc = IS_7BIT(str); enc = rb_enc_check(str, sub); + if (is_broken_string(sub)) { + return -1; + } len = str_strlen(str, enc); slen = str_strlen(sub, enc); /* substring longer than string */ @@ -1863,7 +1870,7 @@ rb_str_succ(VALUE orig) if (c == -1) { /* str contains no alnum */ c = '\001'; s = e; - while ((s = rb_enc_prev_char(sbeg, e, enc)) != 0) { + while ((s = rb_enc_prev_char(sbeg, s, enc)) != 0) { if (cc == 0) cc = rb_enc_codepoint(s, e, enc); cc += 1; l = rb_enc_mbcput(cc, carry, enc); |