httpclient uses strtabs

lib/pure/parseurl.nim

@@ -1,18 +1,95 @@
-import regexprs, strutils
+#
+#
+#            Nimrod's Runtime Library
+#        (c) Copyright 2010 Dominik Picheta
+#
+#    See the file "copying.txt", included in this
+#    distribution, for details about the copyright.
+#
+
+## Parses & constructs URLs.
+
+import strutils
 
 type
-  TUrl* = tuple[protocol, subdomain, domain, port: string, path: seq[string]]
+  TURL* = tuple[      ## represents a *Uniform Resource Locator* (URL)
+                      ## any optional component is "" if it does not exist
+    scheme, username, password, 
+    hostname, port, path, query, anchor: string]
+    
+proc parseUrl*(url: string): TURL =
+  var i: int = 0
 
-proc parseUrl*(url: string): TUrl =
-  #([a-zA-Z]+://)?(\w+?\.)?(\w+)(\.\w+)(:[0-9]+)?(/.+)?
-  const pattern = r"([a-zA-Z]+://)?(\w+?\.)?(\w+)(\.\w+)(:[0-9]+)?(/.+)?"
-  var m: array[0..6, string] #Array with the matches
-  discard regexprs.match(url, pattern, m)
- 
-  result = (protocol: m[1], subdomain: m[2], domain: m[3] & m[4], 
-            port: m[5], path: m[6].split('/'))
- 
-when isMainModule:
-  var r = parseUrl(r"http://google.com/search?var=bleahdhsad")
-  echo(r.domain)
+  var scheme, username, password: string = ""
+  var hostname, port, path, query, anchor: string = ""
 
+  var temp: string = ""
+  
+  if url[i] != '/': #url isn't a relative path
+    while True:
+      #Scheme
+      if url[i] == ':':
+        if url[i+1] == '/' and url[i+2] == '/':
+          scheme = temp
+          temp = ""
+          inc(i, 3) #Skip the //
+      #Authority(username, password)
+      if url[i] == '@':
+        username = temp.split(':')[0]
+        if temp.split(':').len() > 1:
+          password = temp.split(':')[1]
+        temp = ""
+        inc(i) #Skip the @ 
+      #hostname(subdomain, domain, port)
+      if url[i] == '/' or url[i] == '\0':
+        #TODO
+        hostname = temp
+        if hostname.split(':').len() > 1:
+          port = hostname.split(':')[1]
+          hostname = hostname.split(':')[0]
+        
+        temp = ""
+        break
+      
+      temp.add(url[i])
+      inc(i)
+
+  #Path
+  while True:
+    if url[i] == '?':
+      path = temp
+      temp = ""
+    if url[i] == '#':
+      if temp[0] == '?':
+        query = temp
+      else:
+        path = temp
+      temp = ""
+      
+    if url[i] == '\0':
+      if temp[0] == '?':
+        query = temp
+      elif temp[0] == '#':
+        anchor = temp
+      else:
+        path = temp
+      break
+      
+    temp.add(url[i])
+    inc(i)
+    
+  return (scheme, username, password, hostname, port, path, query, anchor)
+
+proc `$`*(t: TURL): string =
+  result = ""
+  if t.scheme != "": result.add(t.scheme & "://")
+  if t.username != "":
+    if t.password != "":
+      result.add(t.username & ":" & t.password & "@")
+    else:
+      result.add(t.username & "@")
+  if t.hostname != "": result.add(t.hostname)
+  if t.port != "": result.add(":" & t.port)
+  if t.path != "": result.add(t.path)
+  if t.query != "": result.add(t.query)
+  if t.anchor != "": result.add(t.anchor)