From f15bea6583de0adb6a81642f03c7d2b27ee7bd2b Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Sun, 1 Nov 2020 09:43:46 -0500
Subject: [PATCH] Implement regex route matching

---
 src/serve.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/serve.c b/src/serve.c
index b877dd4..9d0bcf3 100644
--- a/src/serve.c
+++ b/src/serve.c
@@ -217,8 +217,22 @@ route_match(struct gmnisrv_route *route, const char *path, const char **revised)
 			*revised = &path[l];
 		}
 		return true;
-	case ROUTE_REGEX:
-		assert(0); // TODO
+	case ROUTE_REGEX:;
+		int ncapture = lre_get_capture_count(route->regex);
+		uint8_t **capture = NULL;
+		if (ncapture > 0) {
+			capture = malloc(sizeof(capture[0]) * ncapture * 2);
+			assert(capture);
+		}
+		int r = lre_exec(capture, route->regex,
+			(const uint8_t *)path, 0, strlen(path), 0, NULL);
+		if (r != 1) {
+			free(capture);
+			return false;
+		}
+		// TODO: Process captures and rewrites
+		*revised = path;
+		return true;
 	}
 
 	assert(0); // Invariant