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-rw-r--r--regparse.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/regparse.c b/regparse.c
index 183d1ff..08ffa80 100644
--- a/regparse.c
+++ b/regparse.c
@@ -1776,13 +1776,18 @@ add_code_range_to_buf0(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePo
else
bound = x;
}
+ /* data[(low-1)*2+1] << from <= data[low*2]
+ * data[(high-1)*2+1] <= to << data[high*2]
+ */
inc_n = low + 1 - high;
if (n + inc_n > ONIG_MAX_MULTI_BYTE_RANGES_NUM)
return ONIGERR_TOO_MANY_MULTI_BYTE_RANGES;
if (inc_n != 1) {
- if (checkdup && to >= data[low*2]) CC_DUP_WARN(env);
+ if (checkdup && from <= data[low*2+1]
+ && (data[low*2] <= from || data[low*2+1] <= to))
+ CC_DUP_WARN(env);
if (from > data[low*2])
from = data[low*2];
if (to < data[(high - 1)*2 + 1])