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using System;
using System.Text.RegularExpressions;
using System.Collections;
namespace Mono.Utilities {
public class Colorizer {
//
// Syntax coloring
//
static string keywords_cs =
"(\\babstract\\b|\\bevent\\b|\\bnew\\b|\\bstruct\\b|\\bas\\b|\\bexplicit\\b|\\bnull\\b|\\bswitch\\b|\\bbase\\b|\\bextern\\b|"
+
"\\bobject\\b|\\bthis\\b|\\bbool\\b|\\bfalse\\b|\\boperator\\b|\\bthrow\\b|\\bbreak\\b|\\bfinally\\b|\\bout\\b|\\btrue\\b|"
+
"\\bbyte\\b|\\bfixed\\b|\\boverride\\b|\\btry\\b|\\bcase\\b|\\bfloat\\b|\\bparams\\b|\\btypeof\\b|\\bcatch\\b|\\bfor\\b|"
+
"\\bprivate\\b|\\buint\\b|\\bchar\\b|\\bforeach\\b|\\bprotected\\b|\\bulong\\b|\\bchecked\\b|\\bgoto\\b|\\bpublic\\b|"
+
"\\bunchecked\\b|\\bclass\\b|\\bif\\b|\\breadonly\\b|\\bunsafe\\b|\\bconst\\b|\\bimplicit\\b|\\bref\\b|\\bushort\\b|"
+
"\\bcontinue\\b|\\bin\\b|\\breturn\\b|\\busing\\b|\\bdecimal\\b|\\bint\\b|\\bsbyte\\b|\\bvirtual\\b|\\bdefault\\b|"
+
"\\binterface\\b|\\bsealed\\b|\\bvolatile\\b|\\bdelegate\\b|\\binternal\\b|\\bshort\\b|\\bvoid\\b|\\bdo\\b|\\bis\\b|"
+
"\\bsizeof\\b|\\bwhile\\b|\\bdouble\\b|\\block\\b|\\bstackalloc\\b|\\belse\\b|\\blong\\b|\\bstatic\\b|\\benum\\b|"
+ "\\bnamespace\\b|\\bstring\\b)";
#if false
// currently not in use
static string keywords_vb =
"(\\bAddHandler\\b|\\bAddressOf\\b|\\bAlias\\b|\\bAnd\\b|\\bAndAlso\\b|\\bAnsi\\b|\\bAs\\b|\\bAssembly\\b|"
+
"\\bAuto\\b|\\bBoolean\\b|\\bByRef\\b|\\bByte\\b|\\bByVal\\b|\\bCall\\b|\\bCase\\b|\\bCatch\\b|"
+
"\\bCBool\\b|\\bCByte\\b|\\bCChar\\b|\\bCDate\\b|\\bCDec\\b|\\bCDbl\\b|\\bChar\\b|\\bCInt\\b|"
+
"\\bClass\\b|\\bCLng\\b|\\bCObj\\b|\\bConst\\b|\\bCShort\\b|\\bCSng\\b|\\bCStr\\b|\\bCType\\b|"
+
"\\bDate\\b|\\bDecimal\\b|\\bDeclare\\b|\\bDefault\\b|\\bDelegate\\b|\\bDim\\b|\\bDirectCast\\b|\\bDo\\b|"
+
"\\bDouble\\b|\\bEach\\b|\\bElse\\b|\\bElseIf\\b|\\bEnd\\b|\\bEnum\\b|\\bErase\\b|\\bError\\b|"
+
"\\bEvent\\b|\\bExit\\b|\\bFalse\\b|\\bFinally\\b|\\bFor\\b|\\bFriend\\b|\\bFunction\\b|\\bGet\\b|"
+
"\\bGetType\\b|\\bGoSub\\b|\\bGoTo\\b|\\bHandles\\b|\\bIf\\b|\\bImplements\\b|\\bImports\\b|\\bIn\\b|"
+
"\\bInherits\\b|\\bInteger\\b|\\bInterface\\b|\\bIs\\b|\\bLet\\b|\\bLib\\b|\\bLike\\b|\\bLong\\b|"
+
"\\bLoop\\b|\\bMe\\b|\\bMod\\b|\\bModule\\b|\\bMustInherit\\b|\\bMustOverride\\b|\\bMyBase\\b|\\bMyClass\\b|"
+
"\\bNamespace\\b|\\bNew\\b|\\bNext\\b|\\bNot\\b|\\bNothing\\b|\\bNotInheritable\\b|\\bNotOverridable\\b|\\bObject\\b|"
+
"\\bOn\\b|\\bOption\\b|\\bOptional\\b|\\bOr\\b|\\bOrElse\\b|\\bOverloads\\b|\\bOverridable\\b|\\bOverrides\\b|"
+
"\\bParamArray\\b|\\bPreserve\\b|\\bPrivate\\b|\\bProperty\\b|\\bProtected\\b|\\bPublic\\b|\\bRaiseEvent\\b|\\bReadOnly\\b|"
+
"\\bReDim\\b|\\bREM\\b|\\bRemoveHandler\\b|\\bResume\\b|\\bReturn\\b|\\bSelect\\b|\\bSet\\b|\\bShadows\\b|"
+
"\\bShared\\b|\\bShort\\b|\\bSingle\\b|\\bStatic\\b|\\bStep\\b|\\bStop\\b|\\bString\\b|\\bStructure\\b|"
+
"\\bSub\\b|\\bSyncLock\\b|\\bThen\\b|\\bThrow\\b|\\bTo\\b|\\bTrue\\b|\\bTry\\b|\\bTypeOf\\b|"
+
"\\bUnicode\\b|\\bUntil\\b|\\bVariant\\b|\\bWhen\\b|\\bWhile\\b|\\bWith\\b|\\bWithEvents\\b|\\bWriteOnly\\b|\\bXor\\b)";
#endif
public static string Colorize(string text, string lang)
{
lang = lang.Trim().ToLower();
switch (lang) {
case "xml":
return ColorizeXml(text);
case "cs": case "c#": case "csharp":
return ColorizeCs(text);
case "vb":
return ColorizeVb(text);
}
return Escape (text);
}
static string ColorizeXml(string text)
{
// Order is highly important.
// s/ / /g must be first, as later substitutions add required spaces
text = text.Replace(" ", " ");
// Find & mark XML elements
Regex re = new Regex("<\\s*(\\/?)\\s*([\\s\\S]*?)\\s*(\\/?)\\s*>");
text = re.Replace(text, "{blue:<$1}{maroon:$2}{blue:$3>}");
// Colorize attribute strings; must be done before colorizing marked XML
// elements so that we don't clobber the colorized XML tags.
re = new Regex ("([\"'])(.*?)\\1");
text = re.Replace (text,
"$1<font color=\"purple\">$2</font>$1");
// Colorize marked XML elements
re = new Regex("\\{(\\w*):([\\s\\S]*?)\\}");
//text = re.Replace(text, "<span style='color:$1'>$2</span>");
text = re.Replace(text, "<font color=\"$1\">$2</font>");
// Standard Structure
text = text.Replace("\t", " ");
re = new Regex("\r\n|\r|\n");
text = re.Replace(text, "<br/>");
return text;
}
static string ColorizeCs(string text)
{
text = text.Replace(" ", " ");
text = text.Replace("<", "<");
text = text.Replace(">", ">");
Regex re = new Regex("\"((((?!\").)|\\\")*?)\"");
text =
re.Replace(text,
"<font color=\"purple\">\"$1\"</font>");
//"<span style='color:purple'>\"$1\"</span>");
re = new
Regex
("//(((.(?!\"</font>))|\"(((?!\").)*)\"</font>)*)(\r|\n|\r\n)");
//("//(((.(?!\"</span>))|\"(((?!\").)*)\"</span>)*)(\r|\n|\r\n)");
text =
re.Replace(text,
"<font color=\"green\">//$1</font><br/>");
// "<span style='color:green'>//$1</span><br/>");
re = new Regex(keywords_cs);
text = re.Replace(text, "<font color=\"blue\">$1</font>");
//text = re.Replace(text, "<span style='color:blue'>$1</span>");
text = text.Replace("\t", " ");
text = text.Replace("\n", "<br/>");
return text;
}
static string ColorizeVb(string text) {
text = text.Replace(" ", " ");
/* Regex re = new Regex ("\"((((?!\").)|\\\")*?)\"");
text = re.Replace (text,"<span style='color:purple'>\"$1\"</span>");
re = new Regex ("'(((.(?!\"\\<\\/span\\>))|\"(((?!\").)*)\"\\<\\/span\\>)*)(\r|\n|\r\n)");
text = re.Replace (text,"<span style='color:green'>//$1</span><br/>");
re = new Regex (keywords_vb);
text = re.Replace (text,"<span style='color:blue'>$1</span>");
*/
text = text.Replace("\t", " ");
text = text.Replace("\n", "<br/>");
return text;
}
static string Escape(string text)
{
text = text.Replace("&", "&");
text = text.Replace(" ", " ");
text = text.Replace("<", "<");
text = text.Replace(">", ">");
text = text.Replace("\n", "<br/>");
return text;
}
}
}
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