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FLocal/ThirdParty/BBCode/Modules/Utils.vb

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'**************************************************
' FILE : Utils.vb
' AUTHOR : Paulo Santos
' CREATION : 4/29/2009 2:14:26 PM
' COPYRIGHT : Copyright © 2009
' PJ on Development
' All Rights Reserved.
'
' Description:
' TODO: Add file description
'
' Change log:
' 0.1 4/29/2009 2:14:26 PM
' Paulo Santos
' Created.
'***************************************************
Imports System.Text.RegularExpressions
Imports System.Diagnostics.CodeAnalysis
Friend Module Utils
Public Const STR_BBCodeSchemaNamespace As String = "" '= "http://pjondevelopment.50webs.com/schema/bbcode"
Public Const STR_BBCodeDictionaryXmlElement As String = "Dictionary"
Public Const STR_BBCodeElementTypesXmlElement As String = "ElementTypes"
Public Const STR_BBCodeConfigurationXmlElement As String = "Configuration"
''' <summary>
''' Returns the specified text between quotes.
''' </summary>
''' <param name="text">The text to be placed between quotes.</param>
''' <returns>The text between quotes.</returns>
Public Function Quote(ByVal text As String) As String
Return "'" & text.Replace("'", "''") & "'"
End Function
''' <summary>
''' Unquotes the specified text.
''' </summary>
''' <param name="text">The text to be unquoted.</param>
''' <returns>The unquoted text.</returns>
Public Function UnQuote(ByVal text As String) As String
Dim rx As New Text.RegularExpressions.Regex("^(?<quote>'(?<text>(?:''|[^'])*)')|(?<doubleQuote>""(?<text>(?:""""|[^""])*)"")$")
Dim m = rx.Match(text)
If (Not m.Success) Then
Return text
End If
If (m.Groups("quote").Success) Then
Return m.Groups("text").Value.Replace("''", "'")
End If
Return m.Groups("text").Value.Replace("""""", """")
End Function
''' <summary>
''' Validates the specified tag name.
''' </summary>
''' <param name="tagName">The tagname to be validated.</param>
Public Sub ValidateTagName(ByVal tagName As String)
If (String.IsNullOrEmpty(tagName)) Then
Throw New ArgumentNullException("tagName")
End If
If (tagName.IndexOf("=", StringComparison.Ordinal) <> -1) OrElse (tagName.IndexOf("[", StringComparison.Ordinal) <> -1) OrElse (tagName.IndexOf("]", StringComparison.Ordinal) <> -1) Then
Throw New ArgumentException("Invalid tag name. The tag name cannot contain '=' '[' or ']'.", "tagName")
End If
End Sub
''' <summary>
''' Validates the specified type to ensure that it is a subclass of <see cref="BBCodeElement"/>.
''' </summary>
''' <param name="value">The <see cref="Type"/> to be validated.</param>
Public Sub ValidateBBCodeElementType(ByVal value As Type)
'*
'* Validate is nothing
'*
If (value Is Nothing) Then
Throw New ArgumentNullException("value")
End If
'*
'* Validates the BBCodeElement itself
'*
Dim bbcodeType = GetType(BBCodeElement)
If (value.Equals(bbcodeType)) Then
Exit Sub
End If
'*
'* Validate subclass
'*
If Not bbcodeType.IsAssignableFrom(value) Then
Throw New InvalidOperationException("The type " & value.FullName & " must be a assingable to BBCodeElement.")
End If
'*
'* Validate default constructor
'*
If (value.GetConstructor(New Type() {}) Is Nothing) Then
Throw New InvalidOperationException("The type " & value.FullName & " does not provide a public default constructor.")
End If
End Sub
''' <summary>
''' Encodes the specified text as HTML.
''' </summary>
''' <param name="text">The text to be encoded.</param>
''' <returns>The encoded HTML.</returns>
<SuppressMessage("Microsoft.Maintainability", "CA1505:AvoidUnmaintainableCode", Justification:="This methos is simple a list of substuition character by its HTML representation.")> _
Public Function HtmlEncode(ByVal text As String) As String
Dim sb As New Text.StringBuilder(text)
sb.Replace(ChrW(&H26), "&amp;")
sb.Replace(ChrW(&H22), "&quot;")
sb.Replace(ChrW(&H27), "&apos;")
sb.Replace(ChrW(&H3C), "&lt;")
sb.Replace(ChrW(&H3E), "&gt;")
sb.Replace(ChrW(&HA0), "&nbsp;")
sb.Replace(ChrW(&HA1), "&iexcl;")
sb.Replace(ChrW(&HA2), "&cent;")
sb.Replace(ChrW(&HA3), "&pound;")
sb.Replace(ChrW(&HA4), "&curren;")
sb.Replace(ChrW(&HA5), "&yen;")
sb.Replace(ChrW(&HA6), "&brvbar;")
sb.Replace(ChrW(&HA7), "&sect;")
sb.Replace(ChrW(&HA8), "&uml;")
sb.Replace(ChrW(&HA9), "&copy;")
sb.Replace(ChrW(&HAA), "&ordf;")
sb.Replace(ChrW(&HAB), "&laquo;")
sb.Replace(ChrW(&HAC), "&not;")
sb.Replace(ChrW(&HAD), "&shy;")
sb.Replace(ChrW(&HAE), "&reg;")
sb.Replace(ChrW(&HAF), "&macr;")
sb.Replace(ChrW(&HB0), "&deg;")
sb.Replace(ChrW(&HB1), "&plusmn;")
sb.Replace(ChrW(&HB2), "&sup2;")
sb.Replace(ChrW(&HB3), "&sup3;")
sb.Replace(ChrW(&HB4), "&acute;")
sb.Replace(ChrW(&HB5), "&micro;")
sb.Replace(ChrW(&HB6), "&para;")
sb.Replace(ChrW(&HB7), "&middot;")
sb.Replace(ChrW(&HB8), "&cedil;")
sb.Replace(ChrW(&HB9), "&sup1;")
sb.Replace(ChrW(&HBA), "&ordm;")
sb.Replace(ChrW(&HBB), "&raquo;")
sb.Replace(ChrW(&HBC), "&frac14;")
sb.Replace(ChrW(&HBD), "&frac12;")
sb.Replace(ChrW(&HBE), "&frac34;")
sb.Replace(ChrW(&HBF), "&iquest;")
sb.Replace(ChrW(&HC0), "&Agrave;")
sb.Replace(ChrW(&HC1), "&Aacute;")
sb.Replace(ChrW(&HC2), "&Acirc;")
sb.Replace(ChrW(&HC3), "&Atilde;")
sb.Replace(ChrW(&HC4), "&Auml;")
sb.Replace(ChrW(&HC5), "&Aring;")
sb.Replace(ChrW(&HC6), "&AElig;")
sb.Replace(ChrW(&HC7), "&Ccedil;")
sb.Replace(ChrW(&HC8), "&Egrave;")
sb.Replace(ChrW(&HC9), "&Eacute;")
sb.Replace(ChrW(&HCA), "&Ecirc;")
sb.Replace(ChrW(&HCB), "&Euml;")
sb.Replace(ChrW(&HCC), "&Igrave;")
sb.Replace(ChrW(&HCD), "&Iacute;")
sb.Replace(ChrW(&HCE), "&Icirc;")
sb.Replace(ChrW(&HCF), "&Iuml;")
sb.Replace(ChrW(&HD0), "&ETH;")
sb.Replace(ChrW(&HD1), "&Ntilde;")
sb.Replace(ChrW(&HD2), "&Ograve;")
sb.Replace(ChrW(&HD3), "&Oacute;")
sb.Replace(ChrW(&HD4), "&Ocirc;")
sb.Replace(ChrW(&HD5), "&Otilde;")
sb.Replace(ChrW(&HD6), "&Ouml;")
sb.Replace(ChrW(&HD7), "&times;")
sb.Replace(ChrW(&HD8), "&Oslash;")
sb.Replace(ChrW(&HD9), "&Ugrave;")
sb.Replace(ChrW(&HDA), "&Uacute;")
sb.Replace(ChrW(&HDB), "&Ucirc;")
sb.Replace(ChrW(&HDC), "&Uuml;")
sb.Replace(ChrW(&HDD), "&Yacute;")
sb.Replace(ChrW(&HDE), "&THORN;")
sb.Replace(ChrW(&HDF), "&szlig;")
sb.Replace(ChrW(&HE0), "&agrave;")
sb.Replace(ChrW(&HE1), "&aacute;")
sb.Replace(ChrW(&HE2), "&acirc;")
sb.Replace(ChrW(&HE3), "&atilde;")
sb.Replace(ChrW(&HE4), "&auml;")
sb.Replace(ChrW(&HE5), "&aring;")
sb.Replace(ChrW(&HE6), "&aelig;")
sb.Replace(ChrW(&HE7), "&ccedil;")
sb.Replace(ChrW(&HE8), "&egrave;")
sb.Replace(ChrW(&HE9), "&eacute;")
sb.Replace(ChrW(&HEA), "&ecirc;")
sb.Replace(ChrW(&HEB), "&euml;")
sb.Replace(ChrW(&HEC), "&igrave;")
sb.Replace(ChrW(&HED), "&iacute;")
sb.Replace(ChrW(&HEE), "&icirc;")
sb.Replace(ChrW(&HEF), "&iuml;")
sb.Replace(ChrW(&HF0), "&eth;")
sb.Replace(ChrW(&HF1), "&ntilde;")
sb.Replace(ChrW(&HF2), "&ograve;")
sb.Replace(ChrW(&HF3), "&oacute;")
sb.Replace(ChrW(&HF4), "&ocirc;")
sb.Replace(ChrW(&HF5), "&otilde;")
sb.Replace(ChrW(&HF6), "&ouml;")
sb.Replace(ChrW(&HF7), "&divide;")
sb.Replace(ChrW(&HF8), "&oslash;")
sb.Replace(ChrW(&HF9), "&ugrave;")
sb.Replace(ChrW(&HFA), "&uacute;")
sb.Replace(ChrW(&HFB), "&ucirc;")
sb.Replace(ChrW(&HFC), "&uuml;")
sb.Replace(ChrW(&HFD), "&yacute;")
sb.Replace(ChrW(&HFE), "&thorn;")
sb.Replace(ChrW(&HFF), "&yuml;")
sb.Replace(ChrW(&H152), "&OElig;")
sb.Replace(ChrW(&H153), "&oelig;")
sb.Replace(ChrW(&H160), "&Scaron;")
sb.Replace(ChrW(&H161), "&scaron;")
sb.Replace(ChrW(&H178), "&Yuml;")
sb.Replace(ChrW(&H192), "&fnof;")
sb.Replace(ChrW(&H2C6), "&circ;")
sb.Replace(ChrW(&H2DC), "&tilde;")
sb.Replace(ChrW(&H391), "&Alpha;")
sb.Replace(ChrW(&H392), "&Beta;")
sb.Replace(ChrW(&H393), "&Gamma;")
sb.Replace(ChrW(&H394), "&Delta;")
sb.Replace(ChrW(&H395), "&Epsilon;")
sb.Replace(ChrW(&H396), "&Zeta;")
sb.Replace(ChrW(&H397), "&Eta;")
sb.Replace(ChrW(&H398), "&Theta;")
sb.Replace(ChrW(&H399), "&Iota;")
sb.Replace(ChrW(&H39A), "&Kappa;")
sb.Replace(ChrW(&H39B), "&Lambda;")
sb.Replace(ChrW(&H39C), "&Mu;")
sb.Replace(ChrW(&H39D), "&Nu;")
sb.Replace(ChrW(&H39E), "&Xi;")
sb.Replace(ChrW(&H39F), "&Omicron;")
sb.Replace(ChrW(&H3A0), "&Pi;")
sb.Replace(ChrW(&H3A1), "&Rho;")
sb.Replace(ChrW(&H3A3), "&Sigma;")
sb.Replace(ChrW(&H3A4), "&Tau;")
sb.Replace(ChrW(&H3A5), "&Upsilon;")
sb.Replace(ChrW(&H3A6), "&Phi;")
sb.Replace(ChrW(&H3A7), "&Chi;")
sb.Replace(ChrW(&H3A8), "&Psi;")
sb.Replace(ChrW(&H3A9), "&Omega;")
sb.Replace(ChrW(&H3B1), "&alpha;")
sb.Replace(ChrW(&H3B2), "&beta;")
sb.Replace(ChrW(&H3B3), "&gamma;")
sb.Replace(ChrW(&H3B4), "&delta;")
sb.Replace(ChrW(&H3B5), "&epsilon;")
sb.Replace(ChrW(&H3B6), "&zeta;")
sb.Replace(ChrW(&H3B7), "&eta;")
sb.Replace(ChrW(&H3B8), "&theta;")
sb.Replace(ChrW(&H3B9), "&iota;")
sb.Replace(ChrW(&H3BA), "&kappa;")
sb.Replace(ChrW(&H3BB), "&lambda;")
sb.Replace(ChrW(&H3BC), "&mu;")
sb.Replace(ChrW(&H3BD), "&nu;")
sb.Replace(ChrW(&H3BE), "&xi;")
sb.Replace(ChrW(&H3BF), "&omicron;")
sb.Replace(ChrW(&H3C0), "&pi;")
sb.Replace(ChrW(&H3C1), "&rho;")
sb.Replace(ChrW(&H3C2), "&sigmaf;")
sb.Replace(ChrW(&H3C3), "&sigma;")
sb.Replace(ChrW(&H3C4), "&tau;")
sb.Replace(ChrW(&H3C5), "&upsilon;")
sb.Replace(ChrW(&H3C6), "&phi;")
sb.Replace(ChrW(&H3C7), "&chi;")
sb.Replace(ChrW(&H3C8), "&psi;")
sb.Replace(ChrW(&H3C9), "&omega;")
sb.Replace(ChrW(&H3D1), "&thetasym;")
sb.Replace(ChrW(&H3D2), "&upsih;")
sb.Replace(ChrW(&H3D6), "&piv;")
sb.Replace(ChrW(&H2002), "&ensp;")
sb.Replace(ChrW(&H2003), "&emsp;")
sb.Replace(ChrW(&H2009), "&thinsp;")
sb.Replace(ChrW(&H200C), "&zwnj;")
sb.Replace(ChrW(&H200D), "&zwj;")
sb.Replace(ChrW(&H200E), "&lrm;")
sb.Replace(ChrW(&H200F), "&rlm;")
sb.Replace(ChrW(&H2013), "&ndash;")
sb.Replace(ChrW(&H2014), "&mdash;")
sb.Replace(ChrW(&H2018), "&lsquo;")
sb.Replace(ChrW(&H2019), "&rsquo;")
sb.Replace(ChrW(&H201A), "&sbquo;")
sb.Replace(ChrW(&H201C), "&ldquo;")
sb.Replace(ChrW(&H201D), "&rdquo;")
sb.Replace(ChrW(&H201E), "&bdquo;")
sb.Replace(ChrW(&H2020), "&dagger;")
sb.Replace(ChrW(&H2021), "&Dagger;")
sb.Replace(ChrW(&H2022), "&bull;")
sb.Replace(ChrW(&H2026), "&hellip;")
sb.Replace(ChrW(&H2030), "&permil;")
sb.Replace(ChrW(&H2032), "&prime;")
sb.Replace(ChrW(&H2033), "&Prime;")
sb.Replace(ChrW(&H2039), "&lsaquo;")
sb.Replace(ChrW(&H203A), "&rsaquo;")
sb.Replace(ChrW(&H203E), "&oline;")
sb.Replace(ChrW(&H2044), "&frasl;")
sb.Replace(ChrW(&H20AC), "&euro;")
sb.Replace(ChrW(&H2111), "&image;")
sb.Replace(ChrW(&H2118), "&weierp;")
sb.Replace(ChrW(&H211C), "&real;")
sb.Replace(ChrW(&H2122), "&trade;")
sb.Replace(ChrW(&H2135), "&alefsym;")
sb.Replace(ChrW(&H2190), "&larr;")
sb.Replace(ChrW(&H2191), "&uarr;")
sb.Replace(ChrW(&H2192), "&rarr;")
sb.Replace(ChrW(&H2193), "&darr;")
sb.Replace(ChrW(&H2194), "&harr;")
sb.Replace(ChrW(&H21B5), "&crarr;")
sb.Replace(ChrW(&H21D0), "&lArr;")
sb.Replace(ChrW(&H21D1), "&uArr;")
sb.Replace(ChrW(&H21D2), "&rArr;")
sb.Replace(ChrW(&H21D3), "&dArr;")
sb.Replace(ChrW(&H21D4), "&hArr;")
sb.Replace(ChrW(&H2200), "&forall;")
sb.Replace(ChrW(&H2202), "&part;")
sb.Replace(ChrW(&H2203), "&exist;")
sb.Replace(ChrW(&H2205), "&empty;")
sb.Replace(ChrW(&H2207), "&nabla;")
sb.Replace(ChrW(&H2208), "&isin;")
sb.Replace(ChrW(&H2209), "&notin;")
sb.Replace(ChrW(&H220B), "&ni;")
sb.Replace(ChrW(&H220F), "&prod;")
sb.Replace(ChrW(&H2211), "&sum;")
sb.Replace(ChrW(&H2212), "&minus;")
sb.Replace(ChrW(&H2217), "&lowast;")
sb.Replace(ChrW(&H221A), "&radic;")
sb.Replace(ChrW(&H221D), "&prop;")
sb.Replace(ChrW(&H221E), "&infin;")
sb.Replace(ChrW(&H2220), "&ang;")
sb.Replace(ChrW(&H2227), "&and;")
sb.Replace(ChrW(&H2228), "&or;")
sb.Replace(ChrW(&H2229), "&cap;")
sb.Replace(ChrW(&H222A), "&cup;")
sb.Replace(ChrW(&H222B), "&int;")
sb.Replace(ChrW(&H2234), "&there4;")
sb.Replace(ChrW(&H223C), "&sim;")
sb.Replace(ChrW(&H2245), "&cong;")
sb.Replace(ChrW(&H2248), "&asymp;")
sb.Replace(ChrW(&H2260), "&ne;")
sb.Replace(ChrW(&H2261), "&equiv;")
sb.Replace(ChrW(&H2264), "&le;")
sb.Replace(ChrW(&H2265), "&ge;")
sb.Replace(ChrW(&H2282), "&sub;")
sb.Replace(ChrW(&H2283), "&sup;")
sb.Replace(ChrW(&H2284), "&nsub;")
sb.Replace(ChrW(&H2286), "&sube;")
sb.Replace(ChrW(&H2287), "&supe;")
sb.Replace(ChrW(&H2295), "&oplus;")
sb.Replace(ChrW(&H2297), "&otimes;")
sb.Replace(ChrW(&H22A5), "&perp;")
sb.Replace(ChrW(&H22C5), "&sdot;")
sb.Replace(ChrW(&H2308), "&lceil;")
sb.Replace(ChrW(&H2309), "&rceil;")
sb.Replace(ChrW(&H230A), "&lfloor;")
sb.Replace(ChrW(&H230B), "&rfloor;")
sb.Replace(ChrW(&H2329), "&lang;")
sb.Replace(ChrW(&H232A), "&rang;")
sb.Replace(ChrW(&H25CA), "&loz;")
sb.Replace(ChrW(&H2660), "&spades;")
sb.Replace(ChrW(&H2663), "&clubs;")
sb.Replace(ChrW(&H2665), "&hearts;")
sb.Replace(ChrW(&H2666), "&diams;")
sb.Replace(" ", " &nbsp;")
Return sb.ToString()
End Function
Sub AddTokenizerBaseMacros(ByVal tokenizer As Tokenization.Tokenizer)
'*
'* Prepares the BBCode Grammar
'*
With tokenizer
.Options = RegexOptions.Singleline Or RegexOptions.IgnoreCase
'*
'* Define the grammar macros
'*
.AddMacro("h", "[0-9a-f]")
.AddMacro("nl", "\n|\r\n|\r|\f")
.AddMacro("space", "[ \t\r\n\f]+")
.AddMacro("s", "[ \t\r\n\f]*")
.AddMacro("w", "{s}?")
.AddMacro("nonascii", "[\u0080-\uffff]")
.AddMacro("unicode", "\\{h}{1,6}(\r\n|[ \t\r\n\f])?")
.AddMacro("escape", "{unicode}|\\[^\r\n\f0-9a-f]")
.AddMacro("nmstart", "[_a-z]|{nonascii}|{escape}")
.AddMacro("nmchar", "[_a-z0-9-]|{nonascii}|{escape}")
.AddMacro("string1", "\""([^\n\r\f\\""]|\\{nl}|{escape})*\""")
.AddMacro("string2", "\'([^\n\r\f\\']|\\{nl}|{escape})*\'")
.AddMacro("invalid1", "\""([^\n\r\f\\""]|\\{nl}|{escape})*")
.AddMacro("invalid2", "\'([^\n\r\f\\']|\\{nl}|{escape})*")
.AddMacro("name", "{nmchar}+")
.AddMacro("num", "[0-9]+|[0-9]*\.[0-9]+")
.AddMacro("string", "{string1}|{string2}")
.AddMacro("invalid", "{invalid1}|{invalid2}")
.AddMacro("url", "(ftp|https?://)" & _
"(([0-9a-z_!~*'().&=+$%-]+):([0-9a-z_!~*'().&=+$%-]+@))?" & _
"(([0-9]{1,3}\.){3}[0-9]{1,3}|([0-9a-z_!~*'()-]+\.)*([0-9a-z][0-9a-z-]{0,61})?[0-9a-z]\.[a-z]{2,6})" & _
"(:[0-9]{1,4})?" & _
"((/[0-9a-z_!~*'().;?:@&=+$,%#-]+)+/?|(/?))")
.AddMacro("mail", "(?:mailto:)?[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,4}")
.AddMacro("value", "{string}|{mail}|{url}|{num}|{name}")
.AddMacro("param", "{name}{w}={w}{value}")
.AddMacro("params", "({space}({param}|{name}))+")
End With
End Sub
End Module