cssvalues, twtstr, mediaquery: refactor & fixes

* cssvalues, twtstr: unify enum parsing code paths, parse enums by
  bisearch instead of hash tables
* mediaquery: refactor (long overdue), fix range comparison syntax
  parsing, make ident comparisons case-insensitive (as they should be)

1 files changed, 8 insertions, 5 deletions

diff --git a/src/js/domexception.nim b/src/js/domexception.nim
index 68e313e9..1fab7ed9 100644
--- a/src/js/domexception.nim
+++ b/src/js/domexception.nim
@@ -28,18 +28,24 @@ const NamesTable = {
   "TimeoutError": 23u16,
   "InvalidNodeTypeError": 24u16,
   "DataCloneError": 25u16
-}.toTable()
+}
 
 type
   DOMException* = ref object of JSError
     name* {.jsget.}: string
+    code {.jsget.}: uint16
 
   DOMResult*[T] = Result[T, DOMException]
 
 jsDestructor(DOMException)
 
 proc newDOMException*(message = ""; name = "Error"): DOMException {.jsctor.} =
-  return DOMException(e: jeDOMException, name: name, message: message)
+  let ex = DOMException(e: jeDOMException, name: name, message: message)
+  for it in NamesTable:
+    if it[0] == name:
+      ex.code = it[1]
+      break
+  return ex
 
 template errDOMException*(message, name: string): untyped =
   err(newDOMException(message, name))
@@ -47,8 +53,5 @@ template errDOMException*(message, name: string): untyped =
 func message0(this: DOMException): string {.jsfget: "message".} =
   return this.message
 
-func code(this: DOMException): uint16 {.jsfget.} =
-  return NamesTable.getOrDefault(this.name, 0u16)
-
 proc addDOMExceptionModule*(ctx: JSContext) =
   ctx.registerType(DOMException, JS_CLASS_ERROR, errid = opt(jeDOMException))