Render items with react

src/parser/parser_internals.nim

@@ -108,6 +108,32 @@ func ignore*(parserFn: Parser -> ParserResult): (Parser -> ParserResult) {.inlin
       tokens: parser.tokens,
     ))
 
+func manyUntilPerformant*(acceptFn: Parser -> ParserResult, stopFn: Parser -> ParserResult): (Parser -> ParserResult) {.inline.} =
+  ## Parse characters but throw success tokens away
+  return proc(parser: Parser): ParserResult =
+    let startPosition = parser.state.position
+    var res: ParserResult = parser.ok()
+
+    while res.isOk() and res.flatMap(stopFn).isErr():
+      res = res.flatMap(acceptFn)
+
+    return res.map((p: Parser) => Parser(
+      state: ParserState(
+        stream: p.state.stream,
+        position: p.state.position,
+        lastPosition: p.state.lastPosition,
+      ),
+      tokens: @[
+        ParserToken(
+          kind: parserTokenString,
+          stringValue: p.state.stream[(startPosition - 1)..p.state.position],
+        )
+      ]
+    ))
+
+proc anyUntilPerformant*(stopFn: Parser -> ParserResult): (Parser -> ParserResult) {.inline.} =
+  manyUntilPerformant(anyCh, stopFn)
+
 func manyUntil*(acceptFn: Parser -> ParserResult, stopFn: Parser -> ParserResult): (Parser -> ParserResult) {.inline.} =
   ## Parse characters but throw success tokens away
   return proc(parser: Parser): ParserResult =