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-rw-r--r--src/regex/regcomp.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/regex/regcomp.c b/src/regex/regcomp.c
index 01d42a8e..33213257 100644
--- a/src/regex/regcomp.c
+++ b/src/regex/regcomp.c
@@ -2139,6 +2139,11 @@ tre_copy_ast(tre_mem_t mem, tre_stack_t *stack, tre_ast_node_t *ast,
*result = tre_ast_new_literal(mem, min, max, pos);
if (*result == NULL)
status = REG_ESPACE;
+ else {
+ tre_literal_t *p = (*result)->obj;
+ p->class = lit->class;
+ p->neg_classes = lit->neg_classes;
+ }
if (pos > *max_pos)
*max_pos = pos;