add (very) basic bracket syntax

1 files changed, 15 insertions, 0 deletions

diff --git a/libs/regex.neb b/libs/regex.neb
index 33e2b55..8de476f 100644
--- a/libs/regex.neb
+++ b/libs/regex.neb
@@ -23,11 +23,26 @@
             (.match-inner pattern (rest text)))
         (.match-inner (rest (rest pattern)) text)))
 
+(func .read-inner (pattern end)
+    (.read-inner pattern end ""))
+
+(func .read-inner (pattern end progress)
+    (if (eq? end (first pattern))
+        (list (rest pattern) progress)
+        (.read-inner (rest pattern) end (concat progress (first pattern)))))
+
+(func .match-bracket (pattern text)
+    (def processed (.read-inner (rest pattern) "]"))
+    (not (empty? (drop-while (split (last processed))
+        (not (.match-inner (concat _item_ (first processed)) text))))))
+
 (func .match-inner (pattern text)
     (branch
         ((eq? "" pattern) #true)
         ((and (eq? "$" pattern) (eq? "" text)) #true)
         ((eq? "" text) #false)
+        ((eq? "[" (first pattern))
+            (.match-bracket pattern text))
         ((and (>= (length pattern) 2) (eq? "?" (first (rest pattern))))
             (.match-? pattern text))
         ((and (>= (length pattern) 2) (eq? "*" (first (rest pattern))))