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//
// System.Web.Compilation.TagAttributes
//
// Authors:
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
//
// (C) 2003 Ximian, Inc (http://www.ximian.com)
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Text;
using System.Web.Util;
namespace System.Web.Compilation
{
class TagAttributes
{
Hashtable atts_hash;
Hashtable tmp_hash;
ArrayList keys;
ArrayList values;
bool got_hashed;
public TagAttributes ()
{
got_hashed = false;
keys = new ArrayList ();
values = new ArrayList ();
}
void MakeHash ()
{
atts_hash = new Hashtable (CaseInsensitiveHashCodeProvider.DefaultInvariant,
CaseInsensitiveComparer.DefaultInvariant);
for (int i = 0; i < keys.Count; i++) {
CheckServerKey (keys [i]);
atts_hash.Add (keys [i], values [i]);
}
got_hashed = true;
keys = null;
values = null;
}
public bool IsRunAtServer ()
{
return got_hashed;
}
public void Add (object key, object value)
{
if (key != null && value != null &&
0 == String.Compare ((string) key, "runat", true)) {
if (0 != String.Compare ((string) value, "server", true))
throw new HttpException ("runat attribute must have a 'server' value");
if (got_hashed)
return; // ignore duplicate runat="server"
MakeHash ();
}
if (value != null)
value = HttpUtility.HtmlDecode (value.ToString ());
if (got_hashed) {
CheckServerKey (key);
if (atts_hash.ContainsKey (key))
throw new HttpException ("Tag contains duplicated '" + key +
"' attributes.");
atts_hash.Add (key, value);
} else {
keys.Add (key);
values.Add (value);
}
}
public ICollection Keys
{
get { return (got_hashed ? atts_hash.Keys : keys); }
}
public ICollection Values
{
get { return (got_hashed ? atts_hash.Values : values); }
}
private int CaseInsensitiveSearch (string key)
{
// Hope not to have many attributes when the tag is not a server tag...
for (int i = 0; i < keys.Count; i++){
if (0 == String.Compare ((string) keys [i], key, true))
return i;
}
return -1;
}
public object this [object key]
{
get {
if (got_hashed)
return atts_hash [key];
int idx = CaseInsensitiveSearch ((string) key);
if (idx == -1)
return null;
return values [idx];
}
set {
if (got_hashed) {
CheckServerKey (key);
atts_hash [key] = value;
} else {
int idx = CaseInsensitiveSearch ((string) key);
keys [idx] = value;
}
}
}
public int Count
{
get { return (got_hashed ? atts_hash.Count : keys.Count);}
}
public bool IsDataBound (string att)
{
if (att == null || !got_hashed)
return false;
return (StrUtils.StartsWith (att, "<%#") && StrUtils.EndsWith (att, "%>"));
}
public Hashtable GetDictionary (string key)
{
if (got_hashed)
return atts_hash;
if (tmp_hash == null)
tmp_hash = new Hashtable (CaseInsensitiveHashCodeProvider.DefaultInvariant,
CaseInsensitiveComparer.DefaultInvariant);
tmp_hash.Clear ();
for (int i = keys.Count - 1; i >= 0; i--)
if (key == null || String.Compare (key, (string) keys [i], true) == 0)
tmp_hash [keys [i]] = values [i];
return tmp_hash;
}
public override string ToString ()
{
StringBuilder result = new StringBuilder ();
string value;
foreach (string key in Keys){
result.Append (key);
value = this [key] as string;
if (value != null)
result.AppendFormat ("=\"{0}\"", value);
result.Append (' ');
}
if (result.Length > 0 && result [result.Length - 1] == ' ')
result.Length--;
return result.ToString ();
}
void CheckServerKey (object key)
{
if (key == null || ((string)key).Length == 0)
throw new HttpException ("The server tag is not well formed.");
}
}
}
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