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String optimizations #122

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String optimizations #122

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2 changes: 1 addition & 1 deletion src/HtmlAgilityPack.Shared/HtmlAttribute.cs
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Expand Up @@ -261,7 +261,7 @@ private string GetRelativeXpath()

i++;
}
return "@" + Name + "[" + i + "]";
return "@" + Name + "[" + i.ToString() + "]";
}

#endregion
Expand Down
9 changes: 5 additions & 4 deletions src/HtmlAgilityPack.Shared/HtmlDocument.cs
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Expand Up @@ -1604,8 +1604,9 @@ private void Parse()
// check buffer end
if ((_currentnode._namelength + 3) <= (Text.Length - (_index - 1)))
{
if (string.Compare(Text.Substring(_index - 1, _currentnode._namelength + 2),
"</" + _currentnode.Name, StringComparison.OrdinalIgnoreCase) == 0)
if (Text[_index - 1] == '<' &&
Text[_index] == '/' &&
string.Compare(Text, _index + 1, _currentnode.Name, 0, _currentnode._namelength, StringComparison.OrdinalIgnoreCase) == 0)
{
int c = Text[_index - 1 + 2 + _currentnode.Name.Length];
if ((c == '>') || (IsWhiteSpace(c)))
Expand Down Expand Up @@ -1850,7 +1851,7 @@ private bool PushNodeEnd(int index, bool close)
if ((close) || (!_currentnode._starttag))
{
if ((OptionStopperNodeName != null) && (_remainder == null) &&
(string.Compare(_currentnode.Name, OptionStopperNodeName, StringComparison.OrdinalIgnoreCase) == 0))
(string.Equals(_currentnode.Name, OptionStopperNodeName, StringComparison.OrdinalIgnoreCase)))
{
_remainderOffset = index;
_remainder = Text.Substring(_remainderOffset);
Expand Down Expand Up @@ -1904,7 +1905,7 @@ private void ReadDocumentEncoding(HtmlNode node)
HtmlAttribute att = node.Attributes["http-equiv"];
if (att == null)
return;
if (string.Compare(att.Value, "content-type", StringComparison.OrdinalIgnoreCase) != 0)
if (!string.Equals(att.Value, "content-type", StringComparison.OrdinalIgnoreCase))
return;
HtmlAttribute content = node.Attributes["content"];
if (content != null)
Expand Down
25 changes: 18 additions & 7 deletions src/HtmlAgilityPack.Shared/HtmlEntity.cs
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Expand Up @@ -646,7 +646,9 @@ public static string DeEntitize(string text)
}
catch
{
sb.Append("&#" + e + ";");
sb.Append("&#")
.Append(e)
.Append(';');
}
}
else
Expand All @@ -656,7 +658,9 @@ public static string DeEntitize(string text)
if (!_entityValue.TryGetValue(entity.ToString(), out code))
{
// nope
sb.Append("&" + entity + ";");
sb.Append('&')
.Append(entity)
.Append(';');
}
else
{
Expand All @@ -671,7 +675,8 @@ public static string DeEntitize(string text)

case '&':
// new entity start without end, it was not an entity...
sb.Append("&" + entity);
sb.Append('&')
.Append(entity);
entity.Remove(0, entity.Length);
break;

Expand All @@ -681,7 +686,8 @@ public static string DeEntitize(string text)
{
// unknown stuff, just don't touch it
state = ParseState.Text;
sb.Append("&" + entity);
sb.Append('&')
.Append(entity);
entity.Remove(0, entity.Length);
}
break;
Expand All @@ -693,7 +699,8 @@ public static string DeEntitize(string text)
// finish the work
if (state == ParseState.EntityStart)
{
sb.Append("&" + entity);
sb.Append('&')
.Append(entity);
}
return sb.ToString();
}
Expand Down Expand Up @@ -784,11 +791,15 @@ public static string Entitize(string text, bool useNames, bool entitizeQuotAmpAn

if ((entity == null) || (!useNames))
{
sb.Append("&#" + code + ";");
sb.Append("&#")
.Append(code)
.Append(';');
}
else
{
sb.Append("&" + entity + ";");
sb.Append('&')
.Append(entity)
.Append(';');
}
}
else
Expand Down
6 changes: 3 additions & 3 deletions src/HtmlAgilityPack.Shared/HtmlNode.cs
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Expand Up @@ -1548,7 +1548,7 @@ public void WriteTo(TextWriter outText, int level=0)
if (_ownerdocument.OptionOutputAsXml)
{
var commentNode = (HtmlCommentNode)this;
if (!_ownerdocument.BackwardCompatibility && commentNode.Comment.ToLowerInvariant().StartsWith("<!doctype"))
if (!_ownerdocument.BackwardCompatibility && commentNode.Comment.StartsWith("<!doctype", StringComparison.OrdinalIgnoreCase))
{
outText.Write(commentNode.Comment);
}
Expand Down Expand Up @@ -1949,7 +1949,7 @@ internal void WriteAttributes(TextWriter outText, bool closing)
int i = 0;
foreach (HtmlNode n in ChildNodes)
{
WriteAttribute(outText, _ownerdocument.CreateAttribute("_child_" + i,
WriteAttribute(outText, _ownerdocument.CreateAttribute("_child_" + i.ToString(),
n.Name));
i++;
}
Expand Down Expand Up @@ -1990,7 +1990,7 @@ private string GetRelativeXpath()

i++;
}
return Name + "[" + i + "]";
return Name + "[" + i.ToString() + "]";
}

private bool IsSingleElementNode()
Expand Down
28 changes: 14 additions & 14 deletions src/HtmlAgilityPack.Shared/HtmlNodeNavigator.cs
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Expand Up @@ -235,7 +235,7 @@ public override bool HasAttributes
{
get
{
InternalTrace(">" + (_currentnode.Attributes.Count > 0));
InternalTrace(">" + (_currentnode.Attributes.Count > 0).ToString());
return (_currentnode.Attributes.Count > 0);
}
}
Expand All @@ -247,7 +247,7 @@ public override bool HasChildren
{
get
{
InternalTrace(">" + (_currentnode.ChildNodes.Count > 0));
InternalTrace(">" + (_currentnode.ChildNodes.Count > 0).ToString());
return (_currentnode.ChildNodes.Count > 0);
}
}
Expand All @@ -259,7 +259,7 @@ public override bool IsEmptyElement
{
get
{
InternalTrace(">" + !HasChildren);
InternalTrace(">" + (!HasChildren).ToString());
// REVIEW: is this ok?
return !HasChildren;
}
Expand Down Expand Up @@ -329,31 +329,31 @@ public override XPathNodeType NodeType
switch (_currentnode.NodeType)
{
case HtmlNodeType.Comment:
InternalTrace(">" + XPathNodeType.Comment);
InternalTrace(">" + XPathNodeType.Comment.ToString());
return XPathNodeType.Comment;

case HtmlNodeType.Document:
InternalTrace(">" + XPathNodeType.Root);
InternalTrace(">" + XPathNodeType.Root.ToString());
return XPathNodeType.Root;

case HtmlNodeType.Text:
InternalTrace(">" + XPathNodeType.Text);
InternalTrace(">" + XPathNodeType.Text.ToString());
return XPathNodeType.Text;

case HtmlNodeType.Element:
{
if (_attindex != -1)
{
InternalTrace(">" + XPathNodeType.Attribute);
InternalTrace(">" + XPathNodeType.Attribute.ToString());
return XPathNodeType.Attribute;
}
InternalTrace(">" + XPathNodeType.Element);
InternalTrace(">" + XPathNodeType.Element.ToString());
return XPathNodeType.Element;
}

default:
throw new NotImplementedException("Internal error: Unhandled HtmlNodeType: " +
_currentnode.NodeType);
_currentnode.NodeType.ToString());
}
}
}
Expand All @@ -378,7 +378,7 @@ public override string Value
{
get
{
InternalTrace("nt=" + _currentnode.NodeType);
InternalTrace("nt=" + _currentnode.NodeType.ToString());
switch (_currentnode.NodeType)
{
case HtmlNodeType.Comment:
Expand All @@ -405,7 +405,7 @@ public override string Value

default:
throw new NotImplementedException("Internal error: Unhandled HtmlNodeType: " +
_currentnode.NodeType);
_currentnode.NodeType.ToString());
}
}
}
Expand Down Expand Up @@ -481,7 +481,7 @@ public override bool IsSamePosition(XPathNavigator other)
InternalTrace(">false");
return false;
}
InternalTrace(">" + (nav._currentnode == _currentnode));
InternalTrace(">" + (nav._currentnode == _currentnode).ToString());
return (nav._currentnode == _currentnode);
}

Expand All @@ -498,9 +498,9 @@ public override bool MoveTo(XPathNavigator other)
InternalTrace(">false (nav is not an HtmlNodeNavigator)");
return false;
}
InternalTrace("moveto oid=" + nav.GetHashCode()
InternalTrace("moveto oid=" + nav.GetHashCode().ToString()
+ ", n:" + nav._currentnode.Name
+ ", a:" + nav._attindex);
+ ", a:" + nav._attindex.ToString());

if (nav._doc == _doc)
{
Expand Down
40 changes: 20 additions & 20 deletions src/HtmlAgilityPack.Shared/HtmlWeb.cs
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Expand Up @@ -927,9 +927,7 @@ public static string GetContentTypeForExtension(string extension, string def)
string contentType = "";
if (!helper.GetIsRegistryAvailable())
{
if (MimeTypes.ContainsKey(extension))
contentType = MimeTypes[extension];
else
if (!MimeTypes.TryGetValue(extension, out contentType))
contentType = def;
}

Expand Down Expand Up @@ -1648,9 +1646,6 @@ private static long SaveStream(Stream stream, string path, DateTime touchDate, i
_requestDuration = Environment.TickCount - tc;
_responseUri = resp.ResponseUri;

bool html = IsHtmlContent(resp.ContentType);
bool isUnknown = string.IsNullOrEmpty(resp.ContentType);

Encoding respenc = !string.IsNullOrEmpty(resp.ContentEncoding)
? Encoding.GetEncoding(resp.ContentEncoding)
: null;
Expand Down Expand Up @@ -1718,6 +1713,10 @@ private static long SaveStream(Stream stream, string path, DateTime touchDate, i
else
{
// try to work in-memory

bool html = IsHtmlContent(resp.ContentType);
bool isUnknown = string.IsNullOrEmpty(resp.ContentType);

if (doc != null && html)
{
if (respenc == null)
Expand Down Expand Up @@ -1876,14 +1875,6 @@ private static long SaveStream(Stream stream, string path, DateTime touchDate, i
_requestDuration = Environment.TickCount - tc;
_responseUri = response.RequestMessage.RequestUri;

bool isUnknown = response.Content.Headers.ContentType == null;
bool html = !isUnknown && IsHtmlContent(response.Content.Headers.ContentType.MediaType);

var encoding = response.Content.Headers.ContentEncoding.FirstOrDefault();
Encoding respenc = !string.IsNullOrEmpty(encoding)
? Encoding.GetEncoding(encoding)
: null;

if(CaptureRedirect)
{
// Found == 302
Expand Down Expand Up @@ -1936,6 +1927,15 @@ private static long SaveStream(Stream stream, string path, DateTime touchDate, i
else
{
// try to work in-memory

bool isUnknown = response.Content.Headers.ContentType == null;
bool html = !isUnknown && IsHtmlContent(response.Content.Headers.ContentType.MediaType);

var encoding = response.Content.Headers.ContentEncoding.FirstOrDefault();
Encoding respenc = !string.IsNullOrEmpty(encoding)
? Encoding.GetEncoding(encoding)
: null;

if ((doc != null) && (html))
{
if (respenc != null)
Expand Down Expand Up @@ -2011,14 +2011,14 @@ private bool IsCacheHtmlContent(string path)
}
#endif

private bool IsHtmlContent(string contentType)
private static bool IsHtmlContent(string contentType)
{
return contentType.ToLower().StartsWith("text/html");
return contentType.StartsWith("text/html", StringComparison.OrdinalIgnoreCase);
}

private bool IsGZipEncoding(string contentEncoding)
private static bool IsGZipEncoding(string contentEncoding)
{
return contentEncoding.ToLower().StartsWith("gzip");
return contentEncoding.StartsWith("gzip", StringComparison.OrdinalIgnoreCase);
}

#if !NETSTANDARD
Expand Down Expand Up @@ -2062,7 +2062,7 @@ private void SaveCacheHeaders(Uri requestUri, HttpWebResponse resp)
XmlNode cache = doc.FirstChild;
foreach (string header in resp.Headers)
{
XmlNode entry = doc.CreateElement("h");
XmlElement entry = doc.CreateElement("h");
XmlAttribute att = doc.CreateAttribute("n");
att.Value = header;
entry.Attributes.Append(att);
Expand All @@ -2087,7 +2087,7 @@ private void SaveCacheHeaders(Uri requestUri, HttpResponseMessage resp)
XmlNode cache = doc.FirstChild;
foreach (var header in resp.Headers)
{
XmlNode entry = doc.CreateElement("h");
XmlElement entry = doc.CreateElement("h");
XmlAttribute att = doc.CreateAttribute("n");
att.Value = header.Key;
entry.Attributes.Append(att);
Expand Down
4 changes: 2 additions & 2 deletions src/HtmlAgilityPack.Shared/MixedCodeDocument.cs
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Expand Up @@ -435,7 +435,7 @@ private void Parse()
case ParseState.Text:
if (_index + TokenCodeStart.Length < _text.Length)
{
if (_text.Substring(_index - 1, TokenCodeStart.Length) == TokenCodeStart)
if (string.CompareOrdinal(_text, _index - 1, TokenCodeStart, 0, TokenCodeStart.Length) == 0)
{
_state = ParseState.Code;
_currentfragment.Length = _index - 1 - _currentfragment.Index;
Expand All @@ -449,7 +449,7 @@ private void Parse()
case ParseState.Code:
if (_index + TokenCodeEnd.Length < _text.Length)
{
if (_text.Substring(_index - 1, TokenCodeEnd.Length) == TokenCodeEnd)
if (string.CompareOrdinal(_text, _index - 1, TokenCodeEnd, 0, TokenCodeEnd.Length) == 0)
{
_state = ParseState.Text;
_currentfragment.Length = _index + TokenCodeEnd.Length - _currentfragment.Index;
Expand Down