add actual escape characters to regexes

1 files changed, 11 insertions, 1 deletions

diff --git a/regex.c b/regex.c
index 88f926e..6fe4809 100644
--- a/regex.c
+++ b/regex.c
@@ -157,6 +157,16 @@ ReNode *re_parse_char_set(ReParser *s) {
 	return re_new_node_c(s, N_CHAR_SET, cseti);
 }
 
+u32 esc_char(u32 c) {
+	switch (c) {
+	case 'n': return '\n';
+	case 'r': return '\r';
+	case 't': return '\t';
+	case 'v': return '\v';
+	default: return c;
+	}
+}
+
 ReNode *re_parse_atom(ReParser *s) {
 	switch (ch(s)) {
 	case '(':
@@ -175,7 +185,7 @@ ReNode *re_parse_atom(ReParser *s) {
 	case '\\': {
 		/* TODO: throw error at end-of-string */
 		skip(s, 1);
-		ReNode *n = re_new_node_char(s, ch(s));
+		ReNode *n = re_new_node_char(s, esc_char(ch(s)));
 		skip(s, 1);
 		return n;
 	} break;