Started refactor

src_v2/parser/utils.nim

@@ -0,0 +1,31 @@
+import std/sugar
+import std/collections/sequtils
+import results
+import ./parser_types
+
+type StringBuilderT* = string
+type StringBuilder* = Builder[StringBuilderT]
+type StringBuilderResult* = BuilderResult[StringBuilderT]
+
+proc stringConcat*(typeInfo: StringBuilderT, seperator = ""):
+                  (seq[ParserToken], seq[StringBuilderT]) -> seq[StringBuilderT] =
+
+  return proc(xs: seq[ParserToken], ys: seq[StringBuilderT]): seq[StringBuilderT] =
+    return ys & xs.foldl(a & b.tokenStringValue() & seperator, typeInfo)
+
+proc initStringBuilder*(str: string): StringBuilderResult =
+  StringBuilderResult
+  .ok(StringBuilder((
+    parser: initParser(str),
+    tree: newSeq[StringBuilderT](),
+  )))
+
+proc fold*[T, E, T2](
+  self: Result[T, E],
+  onError: E -> T2,
+  onSuccess: T -> T2,
+): T2 =
+  if self.isOk():
+    onSuccess(self.unsafeGet())
+  else:
+    onError(self.error())