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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
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<title>Castle Game Engine: CastleStringUtils</title>
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<h2>Castle Game Engine</h2><p><a href="introduction.html" class="navigation">Introduction</a></p><p><a href="AllUnits.html" class="navigation">Units</a></p><p><a href="ClassHierarchy.html" class="navigation">Class Hierarchy</a></p><p><a href="AllClasses.html" class="navigation">Classes, Interfaces, Objects and Records</a></p><p><a href="AllTypes.html" class="navigation">Types</a></p><p><a href="AllVariables.html" class="navigation">Variables</a></p><p><a href="AllConstants.html" class="navigation">Constants</a></p><p><a href="AllFunctions.html" class="navigation">Functions and Procedures</a></p><p><a href="AllIdentifiers.html" class="navigation">Identifiers</a></p></td><td class="content">
<h1 class="unit">Unit CastleStringUtils</h1>
<table class="sections wide_list">
<tr>
<td><a class="section" href="#PasDoc-Description">Description</a></td><td><a class="section" href="#PasDoc-Uses">Uses</a></td><td><a class="section" href="#PasDoc-Classes">Classes, Interfaces, Objects and Records</a></td><td><a class="section" href="#PasDoc-FuncsProcs">Functions and Procedures</a></td><td><a class="section" href="#PasDoc-Types">Types</a></td><td><a class="section" href="#PasDoc-Constants">Constants</a></td><td>Variables</td></tr></table>
<a name="PasDoc-Description"></a><h2 class="description">Description</h2>
<p>
String utilities. Also some operations on chars and PChars. And various convertions strings<->numbers.
<p>General comments for all procedures that have parameter like IgnoreCase: </p>
<ul class="paragraph_spacing">
<li><p> If such parameter has some default value, this default value should be </p>
<dl class="paragraph_spacing">
<dt><code>True</code></dt>
<dd><p>for procedures that only read processed string</p></dd>
<dt><code>False</code></dt>
<dd><p>for procedures that can modify processed string (for safety, so that accidental modification should be harder)</p></dd>
</dl>
<p></p></li>
<li><p> If I don't write in docs for this procedure whether this procedure takes current locale into account (as current locale can change the meaning of "ignoring case"), then it means it <i>does</i> take current locale into account.</p></li>
</ul>
<p></p>
<a name="PasDoc-Uses"></a><h2 class="uses">Uses</h2>
<ul class="useslist"><li>SysUtils</li><li><a href="CastleUtils.html">CastleUtils</a></li><li>Classes</li></ul><h2 class="overview">Overview</h2>
<a name="PasDoc-Classes"></a><h3 class="cio">Classes, Interfaces, Objects and Records</h3>
<table class="classestable wide_list">
<tr class="listheader">
<th class="itemname">Name</th>
<th class="itemdesc">Description</th>
</tr>
<tr class="list">
<td class="itemname">Class <a class="bold" href="CastleStringUtils.TCastleStringList.html"><code>TCastleStringList</code></a></td>
<td class="itemdesc">List of strings.</td>
</tr>
<tr class="list2">
<td class="itemname">Class <a class="bold" href="CastleStringUtils.EDeformatError.html"><code>EDeformatError</code></a></td>
<td class="itemdesc"> </td>
</tr>
<tr class="list">
<td class="itemname">record <a class="bold" href="CastleStringUtils.TPercentReplace.html"><code>TPercentReplace</code></a></td>
<td class="itemdesc"> </td>
</tr>
<tr class="list2">
<td class="itemname">Class <a class="bold" href="CastleStringUtils.EUnknownPercentFormat.html"><code>EUnknownPercentFormat</code></a></td>
<td class="itemdesc"> </td>
</tr>
</table>
<a name="PasDoc-FuncsProcs"></a><h3 class="summary">Functions and Procedures</h3>
<table class="summary wide_list">
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#RandomString">RandomString</a></b>: string;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>procedure <b><a href="CastleStringUtils.html#StringReplaceAllTo1st">StringReplaceAllTo1st</a></b>(var S: string; const FromPattern, ToPattern: string; IgnoreCase: boolean = true); overload;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#BreakLine">BreakLine</a></b>(const s: string; MaxCol: integer; onbreakChars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> = <a href="CastleStringUtils.html#WhiteSpaces">WhiteSpaces</a>): string; overload;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SDeleteChars">SDeleteChars</a></b>(const s: string; const excludedChars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>): string;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SReplaceChars">SReplaceChars</a></b>(const s, FromChars, ToChars: string): string; overload;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SReplaceChars">SReplaceChars</a></b>(const s: string; FromChars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>; ToChar: char): string; overload;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SReplaceChars">SReplaceChars</a></b>(const s: string; FromChar, ToChar: char): string; overload;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SPad">SPad</a></b>(const s: string; len: integer; c: char = ' '): string; overload;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SZeroPad">SZeroPad</a></b>(const s: string; len: integer): string;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#LoCase">LoCase</a></b>(c: char): char;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#CharPos">CharPos</a></b>(c: char; const s: string; Offset: Integer = 1): integer;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#CharsPos">CharsPos</a></b>(const chars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>; const s: string): integer;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#CharsPosEx">CharsPosEx</a></b>(const chars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>; const s: string; Offset: Integer): integer;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#BackCharsPos">BackCharsPos</a></b>(const chars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>; const s: string): integer;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#BackPos">BackPos</a></b>(const SubString, S: string): Integer; overload;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#BackPos">BackPos</a></b>(const SubString: char; const S: string): Integer; overload;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#FirstDelimiter">FirstDelimiter</a></b>(const Delimiters, S: string): Integer;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SEnding">SEnding</a></b>(const s: string; P: integer): string;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#IsPrefix">IsPrefix</a></b>(const Prefix, S: string; IgnoreCase: boolean = true): boolean; overload;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#IsSuffix">IsSuffix</a></b>(const Suffix, S: string; IgnoreCase: boolean = true): boolean; overload;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#PrefixRemove">PrefixRemove</a></b>(const Prefix, S: string; IgnoreCase: boolean): string;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SuffixRemove">SuffixRemove</a></b>(const Suffix, S: string; IgnoreCase: boolean): string;</code></td>
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<tr class="list">
<td class="itemcode"><code>procedure <b><a href="CastleStringUtils.html#SAppendData">SAppendData</a></b>(var s: string; const Data; DataSize: integer);</code></td>
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<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SChar">SChar</a></b>(const s: string; CharNum: integer): PChar;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SCharIs">SCharIs</a></b>(const s: string; index: integer; c: char): boolean; overload;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SCharIs">SCharIs</a></b>(const s: string; index: integer; const chars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>): boolean; overload;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SReadableForm">SReadableForm</a></b>(const s: string): string;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#CopyPos">CopyPos</a></b>(const s: string; StartPosition, EndPosition: integer): string;</code></td>
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<tr class="list">
<td class="itemcode"><code>procedure <b><a href="CastleStringUtils.html#DeletePos">DeletePos</a></b>(var S: string; StartPosition, EndPosition: Integer);</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#NextToken">NextToken</a></b>(const S: string; var SeekPos: Integer; const TokenDelims: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> = <a href="CastleStringUtils.html#WhiteSpaces">WhiteSpaces</a>): string;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#NextTokenOnce">NextTokenOnce</a></b>(const s: string; SeekPos: integer = 1; const TokenDelims: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> = <a href="CastleStringUtils.html#WhiteSpaces">WhiteSpaces</a>): string; overload;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#CreateTokens">CreateTokens</a></b>(const s: string; const TokenDelims: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> = <a href="CastleStringUtils.html#WhiteSpaces">WhiteSpaces</a>): <a href="CastleStringUtils.TCastleStringList.html">TCastleStringList</a>;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#FindPos">FindPos</a></b>(const SubText, Text: string; StartPosition, Count: integer; const Options: <a href="CastleStringUtils.html#TSearchOptions">TSearchOptions</a>; const WordBorders: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> = <a href="CastleStringUtils.html#DefaultWordBorders">DefaultWordBorders</a>): integer; overload;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SRight">SRight</a></b>(const s: string; const rpart: integer): string;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SAppendPart">SAppendPart</a></b>(const s, PartSeparator, NextPart: string): string;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#FileToString">FileToString</a></b>(const URL: string; const AllowStdIn: boolean; out MimeType: string): string;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#FileToString">FileToString</a></b>(const URL: string; const AllowStdIn: boolean = false): string;</code></td>
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<tr class="list2">
<td class="itemcode"><code>procedure <b><a href="CastleStringUtils.html#StringToFile">StringToFile</a></b>(const URL, contents: string);</code></td>
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<tr class="list">
<td class="itemcode"><code>procedure <b><a href="CastleStringUtils.html#DeFormat">DeFormat</a></b>(Data: string; const Format: string; const args: array of pointer; const IgnoreCase: boolean = true; const RelaxedWhitespaceChecking: boolean = true); overload;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#TryDeFormat">TryDeFormat</a></b>(Data: string; const Format: string; const args: array of pointer; const IgnoreCase: boolean = true; const RelaxedWhitespaceChecking: boolean = true): integer; overload;</code></td>
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<tr class="list">
<td class="itemcode"><code>procedure <b><a href="CastleStringUtils.html#GetFileFilterExts">GetFileFilterExts</a></b>(const FileFilter: string; Extensions: TStringList);</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#GetFileFilterName">GetFileFilterName</a></b>(const FileFilter: string): string;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#GetFileFilterExtsStr">GetFileFilterExtsStr</a></b>(const FileFilter: string): string;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SReplacePatterns">SReplacePatterns</a></b>(const s: string; const patterns, values: array of string; const Options: <a href="CastleStringUtils.html#TSearchOptions">TSearchOptions</a>): string;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SReplacePatterns">SReplacePatterns</a></b>(const s: string; const patterns, values: TStrings; const Options: <a href="CastleStringUtils.html#TSearchOptions">TSearchOptions</a>): string;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SCharsCount">SCharsCount</a></b>(const s: string; c: char): Cardinal; overload;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SCharsCount">SCharsCount</a></b>(const s: string; const Chars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>): Cardinal; overload;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#STruncateHash">STruncateHash</a></b>(const s: string): string;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SUnformattable">SUnformattable</a></b>(const s: string): string;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SAnsiCompare">SAnsiCompare</a></b>(const s1, s2: string; IgnoreCase: boolean): Integer;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SAnsiSame">SAnsiSame</a></b>(const s1, s2: string; IgnoreCase: boolean): boolean;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SPercentReplace">SPercentReplace</a></b>(const InitialFormat: string; const Replaces: array of <a href="CastleStringUtils.TPercentReplace.html">TPercentReplace</a>; out ReplacementsDone: Cardinal; ErrorOnUnknownPercentFormat: boolean = true; PercentChar: char ='%'; IgnoreCase: boolean = false): string; overload;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SPercentReplace">SPercentReplace</a></b>(const InitialFormat: string; const Replaces: array of <a href="CastleStringUtils.TPercentReplace.html">TPercentReplace</a>; ErrorOnUnknownPercentFormat: boolean = true; PercentChar: char ='%'; IgnoreCase: boolean = false): string; overload;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#FormatNameCounter">FormatNameCounter</a></b>(const NamePattern: string; const Index: Integer; const AllowOldPercentSyntax: boolean; out ReplacementsDone: Cardinal): string;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#FormatNameCounter">FormatNameCounter</a></b>(const NamePattern: string; const Index: Integer; const AllowOldPercentSyntax: boolean): string;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#DigitAsChar">DigitAsChar</a></b>(b: byte): char;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#DigitAsByte">DigitAsByte</a></b>(c: char): byte;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#IntToStrZPad">IntToStrZPad</a></b>(n: integer; minLength: integer): string;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#IntToStrBase">IntToStrBase</a></b>(const n: Int64; Base: Byte): string; overload;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#IntToStrBase">IntToStrBase</a></b>( n: QWord; Base: Byte): string; overload;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#IntToStrBase">IntToStrBase</a></b>(const n: Int64; Base: Byte; minLength: Cardinal): string; overload;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#IntToStrBase">IntToStrBase</a></b>(const n: QWord; Base: Byte; minLength: Cardinal): string; overload;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#IntToStr2">IntToStr2</a></b>(n: Int64; const MinLength: Cardinal = 1; const ZeroDigit: char = '0'; const OneDigit: char = '1'; const MinusSign: char = '-'): string; overload;</code></td>
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<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#IntToStr16">IntToStr16</a></b>(const n: Int64; const minLength: Cardinal = 1): string; overload;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#IntToStr16">IntToStr16</a></b>(const n: QWord; const minLength: Cardinal = 1): string; overload;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#PointerToStr">PointerToStr</a></b>(Ptr: Pointer): string;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#Str2ToInt">Str2ToInt</a></b>(const s: string): integer;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#StrHexToInt">StrHexToInt</a></b>(const s: string): Int64;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#StrToFloatDef">StrToFloatDef</a></b>(const s: string; DefValue: Extended): Extended;</code></td>
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<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SetToStr">SetToStr</a></b>(const SetVariable; NumStart, NumEnd: byte): string;</code></td>
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<tr class="list">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#PCharOrNil">PCharOrNil</a></b>(const s: string): PChar;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code>function <b><a href="CastleStringUtils.html#SCompressWhiteSpace">SCompressWhiteSpace</a></b>(const S: string): string;</code></td>
</tr>
</table>
<a name="PasDoc-Types"></a><h3 class="summary">Types</h3>
<table class="summary wide_list">
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#TDynamicStringArray">TDynamicStringArray</a></b> = array of string;</code></td>
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<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#TSearchOptions">TSearchOptions</a></b> = set of (soMatchCase, soWholeWord, soBackwards);</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a></b> = SysUtils.TSysCharSet;</code></td>
</tr>
</table>
<a name="PasDoc-Constants"></a><h3 class="summary">Constants</h3>
<table class="summary wide_list">
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#AllChars">AllChars</a></b> = [Low(Char) .. High(Char)];</code></td>
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<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#DefaultWordBorders">DefaultWordBorders</a></b> = <a href="CastleStringUtils.html#AllChars">AllChars</a> - ['a'..'z', 'A'..'Z', '0'..'9', '_'];</code></td>
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<td class="itemcode"><code><b><a href="CastleStringUtils.html#WhiteSpaces">WhiteSpaces</a></b> = [' ', #9, #10, #13];</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#SimpleAsciiCharacters">SimpleAsciiCharacters</a></b> = [#32 .. #126];</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#BoolToStr">BoolToStr</a></b>: array[boolean] of string=('FALSE','TRUE');</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#BoolToStrYesNo">BoolToStrYesNo</a></b>: array[boolean]of string = ('No','Yes');</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlA">CtrlA</a></b> = Chr(Ord('a') - Ord('a') + 1);</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlB">CtrlB</a></b> = Chr(Ord('b') - Ord('a') + 1);</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlC">CtrlC</a></b> = Chr(Ord('c') - Ord('a') + 1);</code></td>
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<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlD">CtrlD</a></b> = Chr(Ord('d') - Ord('a') + 1);</code></td>
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<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlE">CtrlE</a></b> = Chr(Ord('e') - Ord('a') + 1);</code></td>
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<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlF">CtrlF</a></b> = Chr(Ord('f') - Ord('a') + 1);</code></td>
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<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlG">CtrlG</a></b> = Chr(Ord('g') - Ord('a') + 1);</code></td>
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<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlH">CtrlH</a></b> = Chr(Ord('h') - Ord('a') + 1);</code></td>
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<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlI">CtrlI</a></b> = Chr(Ord('i') - Ord('a') + 1);</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlJ">CtrlJ</a></b> = Chr(Ord('j') - Ord('a') + 1);</code></td>
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<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlK">CtrlK</a></b> = Chr(Ord('k') - Ord('a') + 1);</code></td>
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<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlL">CtrlL</a></b> = Chr(Ord('l') - Ord('a') + 1);</code></td>
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<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlM">CtrlM</a></b> = Chr(Ord('m') - Ord('a') + 1);</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlN">CtrlN</a></b> = Chr(Ord('n') - Ord('a') + 1);</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlO">CtrlO</a></b> = Chr(Ord('o') - Ord('a') + 1);</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlP">CtrlP</a></b> = Chr(Ord('p') - Ord('a') + 1);</code></td>
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<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlQ">CtrlQ</a></b> = Chr(Ord('q') - Ord('a') + 1);</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlR">CtrlR</a></b> = Chr(Ord('r') - Ord('a') + 1);</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlS">CtrlS</a></b> = Chr(Ord('s') - Ord('a') + 1);</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlT">CtrlT</a></b> = Chr(Ord('t') - Ord('a') + 1);</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlU">CtrlU</a></b> = Chr(Ord('u') - Ord('a') + 1);</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlV">CtrlV</a></b> = Chr(Ord('v') - Ord('a') + 1);</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlW">CtrlW</a></b> = Chr(Ord('w') - Ord('a') + 1);</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlX">CtrlX</a></b> = Chr(Ord('x') - Ord('a') + 1);</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlY">CtrlY</a></b> = Chr(Ord('y') - Ord('a') + 1);</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CtrlZ">CtrlZ</a></b> = Chr(Ord('z') - Ord('a') + 1);</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CharBackSpace">CharBackSpace</a></b> = #8;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CharTab">CharTab</a></b> = #9;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CharEnter">CharEnter</a></b> = #13;</code></td>
</tr>
<tr class="list2">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CharEscape">CharEscape</a></b> = #27;</code></td>
</tr>
<tr class="list">
<td class="itemcode"><code><b><a href="CastleStringUtils.html#CharDelete">CharDelete</a></b> = #127;</code></td>
</tr>
</table>
<h2 class="description">Description</h2>
<h3 class="detail">Functions and Procedures</h3>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="RandomString"></a><code>function <b>RandomString</b>: string;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="StringReplaceAllTo1st"></a><code>procedure <b>StringReplaceAllTo1st</b>(var S: string; const FromPattern, ToPattern: string; IgnoreCase: boolean = true); overload;</code></td>
</tr>
<tr><td colspan="1">
<p>
Replace all occurrences of FromPattern string to ToPattern string, within another string S.
<p><code><code>StringReplaceAllTo1st</code>(s, from, to)</code> is actually equivalent to simply <code>s := StringReplace(s, from, to, [rfReplaceAll, rfIgnoreCase])</code>. So <code>StringReplaceAllTo1st</code> is just a wrapper for very common use case of StringReplace.</p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="BreakLine"></a><code>function <b>BreakLine</b>(const s: string; MaxCol: integer; onbreakChars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> = <a href="CastleStringUtils.html#WhiteSpaces">WhiteSpaces</a>): string; overload;</code></td>
</tr>
<tr><td colspan="1">
<p>
Insert newline characters into string S, such that each line has at most MaxCol chars. Newline characters inserted is <a class="normal" href="CastleUtils.html#NL">NL</a>.
<p>It tries to insert <a class="normal" href="CastleUtils.html#NL">NL</a> at the last character in OnBreakChars but still before MaxCol limit, and the character in OnBreakChars is deleted in this case. In other words, in most typical situation it simply breaks the string where the whitespace is, trying to make the line as long as possible within MaxCol limit. If no such character in OnBreakChars is found (e.g., you put a long line of non-<a class="normal" href="CastleColors.html#White">white</a> characters), it will still break the string at MaxCol position (so in this exceptional case, it will cause a break in the middle of the word).
<p>While breaking the string in the middle of the word in not nice, this allows us a safe feeling that this will always break the string into MaxCol chunks.
<p>This intelligently recognizes already existing newline characters (#13, #10, #13#10 or #10#13) in the string, so e.g. it will not insert more newline characters when they are not necessary.</p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="SDeleteChars"></a><code>function <b>SDeleteChars</b>(const s: string; const excludedChars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Returns S with all chars in ExcludedChars deleted.</p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="SReplaceChars"></a><code>function <b>SReplaceChars</b>(const s, FromChars, ToChars: string): string; overload;</code></td>
</tr>
<tr><td colspan="1">
<p>
Replace all occurrences of characters in FromChars with the new string / character. There are three overloaded versions:
<p></p>
<ol class="paragraph_spacing">
<li value="1"><p><a class="normal" href="CastleStringUtils.html#SReplaceChars">SReplaceChars</a>(string, string, string) looks in S for characters within FromChars, and replaces them with characters on appropriate position in ToChars. For example, <a class="normal" href="CastleStringUtils.html#SReplaceChars">SReplaceChars</a>(S, 'ab', 'cd') replaces all occurrences of 'a' into 'c' and all occurrences of 'b' into 'd'. It must always be Length(FromChars) <= Length(ToChars).</p></li>
<li value="2"><p><a class="normal" href="CastleStringUtils.html#SReplaceChars">SReplaceChars</a>(string, <a class="normal" href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>, char) replaces all occurrences of any character in given set with the one specified character.</p></li>
<li value="3"><p><a class="normal" href="CastleStringUtils.html#SReplaceChars">SReplaceChars</a>(string, char, char) simply replaces all occurrences of one character into another.</p></li>
</ol>
<p>
<p></p>
</td></tr>
</table>
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<td class="itemcode"><a name="SReplaceChars"></a><code>function <b>SReplaceChars</b>(const s: string; FromChars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>; ToChar: char): string; overload;</code></td>
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<td class="itemcode"><a name="SReplaceChars"></a><code>function <b>SReplaceChars</b>(const s: string; FromChar, ToChar: char): string; overload;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
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<td class="itemcode"><a name="SPad"></a><code>function <b>SPad</b>(const s: string; len: integer; c: char = ' '): string; overload;</code></td>
</tr>
<tr><td colspan="1">
<p>
Pad (fill from the left with character C) string S, until length of resulting string is at least Len.
<p>For example, <code><code>SPad</code>('29', 4, '0')</code> gives '0029'</p>
</td></tr>
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<td class="itemcode"><a name="SZeroPad"></a><code>function <b>SZeroPad</b>(const s: string; len: integer): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Pad (fill from the left) with zeros string S, until length of resulting string is at least Len. It's actually just a shortcut for <a class="normal" href="CastleStringUtils.html#SPad">SPad</a> with padding character set to '0'.</p>
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<td class="itemcode"><a name="LoCase"></a><code>function <b>LoCase</b>(c: char): char;</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert uppercase letters to lowercase. Analogous to UpCase. Doesn't change other characters. Just like UpCase, this doesn't take current locale into account, and works only on English A-Z -> a-z letters.</p>
</td></tr>
</table>
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<td class="itemcode"><a name="CharPos"></a><code>function <b>CharPos</b>(c: char; const s: string; Offset: Integer = 1): integer;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
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<td class="itemcode"><a name="CharsPos"></a><code>function <b>CharsPos</b>(const chars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>; const s: string): integer;</code></td>
</tr>
<tr><td colspan="1">
<p>
Find first occurrence of any character in Chars in string S. This is quite like <a class="normal" href="CastleStringUtils.html#FirstDelimiter">FirstDelimiter</a> but it takes parameter as <a class="normal" href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> and has much more sensible name.
<p><a class="normal" href="CastleStringUtils.html#BackCharsPos">BackCharsPos</a> does the same, but from the end of the string (i.e. finds the last occurrence).
<p><a class="normal" href="CastleStringUtils.html#CharsPosEx">CharsPosEx</a> searches starting from Offset char.
<p>They all return 0 if not found.
<p></p>
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<td class="itemcode"><a name="CharsPosEx"></a><code>function <b>CharsPosEx</b>(const chars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>; const s: string; Offset: Integer): integer;</code></td>
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<td class="itemcode"><a name="BackCharsPos"></a><code>function <b>BackCharsPos</b>(const chars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>; const s: string): integer;</code></td>
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<td class="itemcode"><a name="BackPos"></a><code>function <b>BackPos</b>(const SubString, S: string): Integer; overload;</code></td>
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<tr><td colspan="1">
<p>
Find <b>last</b> occurrence of SubString within S. 0 if not found. Overloaded version is optimized for searching for single character.</p>
</td></tr>
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<td class="itemcode"><a name="BackPos"></a><code>function <b>BackPos</b>(const SubString: char; const S: string): Integer; overload;</code></td>
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</td></tr>
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<td class="itemcode"><a name="FirstDelimiter"></a><code>function <b>FirstDelimiter</b>(const Delimiters, S: string): Integer;</code></td>
</tr>
<tr><td colspan="1">
<p>
Find first occurrence of character in Delimiters. Name is analogous to LastDelimiter. Returns 0 if not found.</p>
</td></tr>
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<td class="itemcode"><a name="SEnding"></a><code>function <b>SEnding</b>(const s: string; P: integer): string;</code></td>
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<tr><td colspan="1">
<p>
Returns suffix of S starting from position P. Returns '' if P > length(S). Yes, this is simply equivalent to Copy(S, P, MaxInt).</p>
</td></tr>
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<td class="itemcode"><a name="IsPrefix"></a><code>function <b>IsPrefix</b>(const Prefix, S: string; IgnoreCase: boolean = true): boolean; overload;</code></td>
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</td></tr>
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<td class="itemcode"><a name="IsSuffix"></a><code>function <b>IsSuffix</b>(const Suffix, S: string; IgnoreCase: boolean = true): boolean; overload;</code></td>
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</td></tr>
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<td class="itemcode"><a name="PrefixRemove"></a><code>function <b>PrefixRemove</b>(const Prefix, S: string; IgnoreCase: boolean): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Removes the prefix, if it is present. More precisely, if <a class="normal" href="CastleStringUtils.html#IsPrefix">IsPrefix</a>(Prefix, S, IgnoreCase) then returns S with this prefix removed. Else returns S.</p>
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<td class="itemcode"><a name="SuffixRemove"></a><code>function <b>SuffixRemove</b>(const Suffix, S: string; IgnoreCase: boolean): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Like <a class="normal" href="CastleStringUtils.html#PrefixRemove">PrefixRemove</a>, but checks for and removes Suffix.</p>
</td></tr>
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<td class="itemcode"><a name="SAppendData"></a><code>procedure <b>SAppendData</b>(var s: string; const Data; DataSize: integer);</code></td>
</tr>
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<p>
Appends to a string S DataSize bytes from Data.</p>
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<td class="itemcode"><a name="SChar"></a><code>function <b>SChar</b>(const s: string; CharNum: integer): PChar;</code></td>
</tr>
<tr><td colspan="1">
<p>
A pointer to S[CharNum], that is just @S[CharNum], avoiding range checking.</p>
</td></tr>
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<td class="itemcode"><a name="SCharIs"></a><code>function <b>SCharIs</b>(const s: string; index: integer; c: char): boolean; overload;</code></td>
</tr>
<tr><td colspan="1">
<p>
Check whether S[Index] = C, also checking is Index within S length. Return false if S is too short, or the chatacter differs.
<p></p>
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<td class="itemcode"><a name="SCharIs"></a><code>function <b>SCharIs</b>(const s: string; index: integer; const chars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>): boolean; overload;</code></td>
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<td class="itemcode"><a name="SReadableForm"></a><code>function <b>SReadableForm</b>(const s: string): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Replace typically unreadable characters in string S with #number notation. Useful for printing strings with some unprintable chars for debugging purposes.</p>
</td></tr>
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<td class="itemcode"><a name="CopyPos"></a><code>function <b>CopyPos</b>(const s: string; StartPosition, EndPosition: integer): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Return S[StartPosition..EndPosition]. This is similar to standard Copy procedure, but last parameter is EndPosition instead of Count, which is more comfortable sometimes.</p>
</td></tr>
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<td class="itemcode"><a name="DeletePos"></a><code>procedure <b>DeletePos</b>(var S: string; StartPosition, EndPosition: Integer);</code></td>
</tr>
<tr><td colspan="1">
<p>
Delete from S range of characters [StartPosition..EndPosition]. Analogous to standard Delete but with EndPosition parameter (while standard Delete takes Count).</p>
</td></tr>
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<td class="itemcode"><a name="NextToken"></a><code>function <b>NextToken</b>(const S: string; var SeekPos: Integer; const TokenDelims: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> = <a href="CastleStringUtils.html#WhiteSpaces">WhiteSpaces</a>): string;</code></td>
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<p>
Find next part in the string S separated by delimiters TokenDelims. More precisely: search S, starting from position SeekPos, for the first character that is <i>not in TokenDelims</i>. Then, all subsequent characters that are not in TokenDelims are appended to the Result, until any character <i>is in TokenDelims</i> is found. In effect, Result contains the whole part that was in TokenDelims.
<p>SeekPos is advanced to the position of the next character, i.e. the character right after the ending character that was in TokenDelims. In other words, SeekPos points to the position of the next "unprocessed" character in string S. Often you will want to make another call to <code>NextToken</code>, passing this SeekPos, and this way you can split your string S into parts delimited by TokenDelims.
<p>Returns '' if no more tokens available (SeekPos value at the end is unspecified).
<p>Typical use scenario (iterate over all tokens in the string) :
<p></p>
<pre class="longcode">
SeekPos := <span class="pascal_numeric">1</span>;
<span class="pascal_keyword">repeat</span>
Token := NextToken(S, SeekPos);
<span class="pascal_keyword">if</span> Token = <span class="pascal_string">''</span> <span class="pascal_keyword">then</span> break;
<span class="pascal_comment">{ ... process_next_token (Token) ... }</span>
<span class="pascal_keyword">until</span> false;
</pre>
<p>
<p>The above example will split the string into parts separated by whitespace.
<p>Note: it's much easier to use <a class="normal" href="CastleStringUtils.html#CreateTokens">CreateTokens</a> instead of this procedure. But this procedure gives you quite more flexibility.</p>
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<td class="itemcode"><a name="NextTokenOnce"></a><code>function <b>NextTokenOnce</b>(const s: string; SeekPos: integer = 1; const TokenDelims: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> = <a href="CastleStringUtils.html#WhiteSpaces">WhiteSpaces</a>): string; overload;</code></td>
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<p>
<code>NextTokenOnce</code> works just like <a class="normal" href="CastleStringUtils.html#NextToken">NextToken</a>, but doesn't advance the SeekPos position. This means that it's quite useless when you're interested in <i>all</i> tokens inside some string, but it's also more comfortable when you're interested in only <i>one</i> token inside some string. When SeekPos = 1, this is the first token.</p>
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<td class="itemcode"><a name="CreateTokens"></a><code>function <b>CreateTokens</b>(const s: string; const TokenDelims: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> = <a href="CastleStringUtils.html#WhiteSpaces">WhiteSpaces</a>): <a href="CastleStringUtils.TCastleStringList.html">TCastleStringList</a>;</code></td>
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<p>
Returns <a class="normal" href="CastleStringUtils.TCastleStringList.html">TCastleStringList</a> with tokens extracted from S. Token is something delimited by TokenDelims. TokenDelims are not contained in resulting items. E.g. <code>CreateTokens</code>('foo, bar', [' ', ',']) returns <a class="normal" href="CastleStringUtils.TCastleStringList.html">TCastleStringList</a> with 2 items: 'foo' and 'bar'.</p>
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<td class="itemcode"><a name="FindPos"></a><code>function <b>FindPos</b>(const SubText, Text: string; StartPosition, Count: integer; const Options: <a href="CastleStringUtils.html#TSearchOptions">TSearchOptions</a>; const WordBorders: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a> = <a href="CastleStringUtils.html#DefaultWordBorders">DefaultWordBorders</a>): integer; overload;</code></td>
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<tr><td colspan="1">
<p>
Find substring SubText within Text. Returns 0 if not found. Similar to a standard Pos function, with some improvements.
<p>
<p>
<p></p>
<h6 class="description_section">Parameters</h6>
<dl class="parameters">
<dt>StartPosition</dt>
<dd>Starts searching for SubText starting from this position. Note that the resulting position is still returned with respect to the string beginning. Just like standard PosEx.</dd>
<dt>Count</dt>
<dd>Looks only at Count characters from Text. You can say that the search is done only within Copy(Text, StartPosition, Count).</dd>
<dt>Options</dt>
<dd>Various searching options:
<p></p>
<ul class="paragraph_spacing">
<li><p>soMatchCase: makes searching case-sensitive (by default, case is ignored, taking locale into account).</p></li>
<li><p>soWholeWord: looks only for SubText occurrences surrounded by characters from WordBorders (or the beginning/end of Text).
<p>Note that, while the beginning/end of Text is always treated like a word border, but the mere beginning/end of the searching range (StartPosition, Count) is not a word border. For example <code>FindPos</code>('cat', 'foocat dog', 4, MaxInt, [soWholeWord]) will answer 0 (not found), because the only 'cat' occurrence is not surrounded by default word borders.</p></li>
<li><p>soBackwards: search from the end, that is return rightmost found occurrence.</p></li>
</ul>
<p></dd>
</dl>
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<td class="itemcode"><a name="SRight"></a><code>function <b>SRight</b>(const s: string; const rpart: integer): string;</code></td>
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<tr><td colspan="1">
<p>
Return rightmost RPart characters from S. If RPart > Length(S) then returns S.</p>
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<td class="itemcode"><a name="SAppendPart"></a><code>function <b>SAppendPart</b>(const s, PartSeparator, NextPart: string): string;</code></td>
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<tr><td colspan="1">
<p>
If S = '' then returns NextPart, else returns S + PartSeparator + NextPart.</p>
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<td class="itemcode"><a name="FileToString"></a><code>function <b>FileToString</b>(const URL: string; const AllowStdIn: boolean; out MimeType: string): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Read file or URL contents to a string. MimeType is returned, calculated just like the <a class="normal" href="CastleDownload.html#Download">Download</a> function. If AllowStdIn, then URL = '-' (one dash) is treated specially: it means to read contents from standard input (stdin, Input in Pascal).</p>
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<td class="itemcode"><a name="FileToString"></a><code>function <b>FileToString</b>(const URL: string; const AllowStdIn: boolean = false): string;</code></td>
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<td class="itemcode"><a name="StringToFile"></a><code>procedure <b>StringToFile</b>(const URL, contents: string);</code></td>
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<td class="itemcode"><a name="DeFormat"></a><code>procedure <b>DeFormat</b>(Data: string; const Format: string; const args: array of pointer; const IgnoreCase: boolean = true; const RelaxedWhitespaceChecking: boolean = true); overload;</code></td>
</tr>
<tr><td colspan="1">
<p>
Parse a string according to the given format, returning the values corresponding to placeholders %x in format string.
<p>Format parameter is a sequence of <a class="normal" href="CastleColors.html#White">white</a> spaces, placeholders like %d or %f, and other characters. More precisely:
<p></p>
<ul class="paragraph_spacing">
<li><p>If RelaxedWhitespaceChecking = <code>True</code> (that's the default value) then 1 or more <a class="normal" href="CastleColors.html#White">white</a> spaces in Format must correspond to 1 or more any whitespace characters in Data. I.e., the actual number and kind of whitespace in Format and Data doesn't have to match — it's only important that <i>some whitespace in Format</i> correspond to <i>some whitespace in Data</i>.</p></li>
<li><p><code>%d</code> in Format means an integer value (possibly signed) in Data. Args should have a pointer to Integer variable on the appropriate position.</p></li>
<li><p><code>%f</code> in Format means a float value (possibly signed, possibly with a dot) in Data. Args should have a pointer to Float variable on the appropriate position.</p></li>
<li><p><code>%.single.</code>, <code>%.double.</code>, <code>%.extended.</code> are like <code>%f</code>, but they specify appropriate variable type in Args. Since <code>DeFormat</code> can't check the type validity of your pointers, always be sure to pass in Args pointers to appropriate types.</p></li>
<li><p><code>%s</code> in Format means a string (will end on the first whitespace) in Data. Args should contain a pointer to an AnsiString on the appropriate position. Note that I mean it — a pointer to an AnsiString, not just a string typecasted into a pointer. I.e., if S is AnsiString, Args should contain @S, not Pointer(S).
<p>Note that a string may be empty in some cases, e.g. Format = '%d %s' and Data = '123 ' will result in the empty string as second Args.</p></li>
<li><p><code>%%</code> in Format means a one % sign in Data.</p></li>
<li><p>All the other characters (non-<a class="normal" href="CastleColors.html#White">white</a>, not %x sequences above) should be present in Data exactly like they are specified in Format. IgnoreCase controls is the letter case checked. When RelaxedWhitespaceChecking = <code>False</code> then <a class="normal" href="CastleColors.html#White">white</a>-space characters are treated just like non-<a class="normal" href="CastleColors.html#White">white</a> chars: they must match exactly between Format and Data.</p></li>
</ul>
<p>
<p>Format must always match the whole Data — in other words, when we finished reading the Format, Data should be finished too. The exception is at the beginning and end of Data, if RelaxedWhitespaceChecking = <code>True</code> : then at the beginning and end of Data any number of <a class="normal" href="CastleColors.html#White">white</a>-space is allowed.
<p>For <code>DeFormat</code>, the opposite must also be true: when we finished reading Data, Format should be finished too. However, for <a class="normal" href="CastleStringUtils.html#TryDeFormat">TryDeFormat</a>, it's allowed for Data to end prematurely. <a class="normal" href="CastleStringUtils.html#TryDeFormat">TryDeFormat</a> returns how many Args were initialized.
<p>Note that while usually you will want RelaxedWhitespaceChecking = <code>True</code>, sometimes it can be needed to set this to <code>False</code> not only to get strickter checking, but also to get some things matching that otherwise wouldn't match. For example, consider Data = 'first second apple' and Format = 'first %s second %s'. With RelaxedWhitespaceChecking these things <i>do not match</i> — because the 1st space character in the Format string "consumes" the 1st and 2nd space characters in the Data. Then '%s' is matched to the word 'second', and the word 'second' is compared with 'apple' and they do not match. If you want such Data and Format to match, you must pass RelaxedWhitespaceChecking = <code>True</code>. Then the first '%s' will be matched to '' (empty string).
<p>This was written because both JclSscanf and scanf units were buggy. (see openGL.testy/nehe10).
<p></p>
<h6 class="description_section">Exceptions raised</h6>
<dl class="exceptions_raised">
<dt><a class="normal" href="CastleStringUtils.EDeformatError.html">EDeformatError</a></dt>
<dd>In case of any error — mismatch between Format and Data. Note that in case of error, some of Args may be initialized, and some not — no guarantees here, sorry.</dd>
</dl>
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</table>
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<td class="itemcode"><a name="TryDeFormat"></a><code>function <b>TryDeFormat</b>(Data: string; const Format: string; const args: array of pointer; const IgnoreCase: boolean = true; const RelaxedWhitespaceChecking: boolean = true): integer; overload;</code></td>
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<td class="itemcode"><a name="GetFileFilterExts"></a><code>procedure <b>GetFileFilterExts</b>(const FileFilter: string; Extensions: TStringList);</code></td>
</tr>
<tr><td colspan="1">
<p>
Extract file extensions from a file filter usually specified a TOpenDialog.Filter value.
<p>More precisely: expects FileFilter to be in the form of <code>'xxxx|name1.ext1;name2.ext2'</code>. Where "xxxx" is just about anything (it is ignored), and in fact whole "xxxx|" (with bar) may be omitted. The rest (after "|") is treated as a filename list, separated by semicolon ";".
<p>As Extensions contents, we set an array of all extensions extracted from these filenames. For example above, we would set Extensions to array with two items: <code>['.ext1', '.ext2']</code>.</p>
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<td class="itemcode"><a name="GetFileFilterName"></a><code>function <b>GetFileFilterName</b>(const FileFilter: string): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Extract file filter name, from a file filter usually specified a TOpenDialog.Filter value.
<p>More precisely: if we do not see bar "|" character, then this is the filter name. Otherwise, everything on the right of "|" is "extensions" and everything on the left is "filter name".
<p>Additionally, if filter name ends with extensions value in parenthesis, they are removed. In other words, for 'Pascal files (*.pas)|*.pas', this will return just 'Pascal files'. The '(*.pas)' was removed from the filter name, because we detected this just repeats the extensions on the right of "|". Extensions on the right of "|" must be separated by semicolons, extensions within parenthesis on the left of "|" may be separated by semicolons ";" or colons ",".</p>
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<td class="itemcode"><a name="GetFileFilterExtsStr"></a><code>function <b>GetFileFilterExtsStr</b>(const FileFilter: string): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Search in FileFilter for the bar character "|", and return everything after it. This is a simple basis for <a class="normal" href="CastleStringUtils.html#GetFileFilterExts">GetFileFilterExts</a>.
<p>If no "|" found, we return an empty string (in other words, file filter without "|" is treated as just a filter name, without any extensions).</p>
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<td class="itemcode"><a name="SReplacePatterns"></a><code>function <b>SReplacePatterns</b>(const s: string; const patterns, values: array of string; const Options: <a href="CastleStringUtils.html#TSearchOptions">TSearchOptions</a>): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Replace all strings in Patterns with corresponding strings in Values. This is similar to standard StringReplace, but this does many replaces at once.
<p>Patterns and Values arrays must have equal length. Patterns[0] will be replaced with Values[0], Patterns[1] with Values[0] etc. Patterns are scanned from left to right, that is if two pattern occurrences overlap — we will detect the leftmost one. If both patterns start at the same place (this means that one pattern is a prefix of the other), we will choose the first pattern in Patterns table.
<p>Using this avoids a common trap at repeated search-replace operations. A naive implementation of doing many search-replace over the same string is like
<p></p>
<pre class="longcode">
Result := S;
Result := StringReplace(Result, Patterns[<span class="pascal_numeric">0</span>], Values[<span class="pascal_numeric">0</span>], [rfReplaceAll]);
Result := StringReplace(Result, Patterns[<span class="pascal_numeric">1</span>], Values[<span class="pascal_numeric">1</span>], [rfReplaceAll]);
etc.
</pre>
<p>
<p>But the above fails badly when inserting some Values[] creates an occurrence of Pattern checked later. For example, when Values[0] contains inside whole Patterns[1]. More exotic situations involve when some Values[] glues with previous string contents to make a pattern detected later. This means that you could replace the same content many times, which is usually not what you want.
<p>That's why you should instead use this function for such situations.
<p>Options cannot contain soBackwards flag.</p>
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<table class="detail wide_list">
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<td class="itemcode"><a name="SReplacePatterns"></a><code>function <b>SReplacePatterns</b>(const s: string; const patterns, values: TStrings; const Options: <a href="CastleStringUtils.html#TSearchOptions">TSearchOptions</a>): string;</code></td>
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<td class="itemcode"><a name="SCharsCount"></a><code>function <b>SCharsCount</b>(const s: string; c: char): Cardinal; overload;</code></td>
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</td></tr>
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<td class="itemcode"><a name="SCharsCount"></a><code>function <b>SCharsCount</b>(const s: string; const Chars: <a href="CastleStringUtils.html#TSetOfChars">TSetOfChars</a>): Cardinal; overload;</code></td>
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</td></tr>
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<td class="itemcode"><a name="STruncateHash"></a><code>function <b>STruncateHash</b>(const s: string): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Remove from the string S everything after the first hash "#" character. Removes also this very "#" character.
<p>If string doesn't contain hash character, it's simply returned.
<p>Useful for interpreting simple text files when you want to treat things after "#" like a comment.</p>
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<td class="itemcode"><a name="SUnformattable"></a><code>function <b>SUnformattable</b>(const s: string): string;</code></td>
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<tr><td colspan="1">
<p>
Return the value to reproduce exactly string S by Format procedure. Saying simply, this doubles the "%" characters inside the string. The intention is to make such string that <code>Format(<code>SUnformattable</code>(S), []) = S</code>. In other words, "quote" any suspicious "%" characters in S for Format.</p>
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<td class="itemcode"><a name="SAnsiCompare"></a><code>function <b>SAnsiCompare</b>(const s1, s2: string; IgnoreCase: boolean): Integer;</code></td>
</tr>
<tr><td colspan="1">
<p>
Compare strings, taking into account current locale. This simply does AnsiCompareStr or AnsiCompareText, depending on IgnoreCase.
<p>Returns value < 0 when S1 < S2, returns 0 when S1 = S2 and value > 0 when S1 > S2.</p>
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<td class="itemcode"><a name="SAnsiSame"></a><code>function <b>SAnsiSame</b>(const s1, s2: string; IgnoreCase: boolean): boolean;</code></td>
</tr>
<tr><td colspan="1">
<p>
Check if strings are equal, taking into account current locale. Shortcut for <a class="normal" href="CastleStringUtils.html#SAnsiCompare">SAnsiCompare</a>(S1, S2) = 0</p>
</td></tr>
</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="SPercentReplace"></a><code>function <b>SPercentReplace</b>(const InitialFormat: string; const Replaces: array of <a href="CastleStringUtils.TPercentReplace.html">TPercentReplace</a>; out ReplacementsDone: Cardinal; ErrorOnUnknownPercentFormat: boolean = true; PercentChar: char ='%'; IgnoreCase: boolean = false): string; overload;</code></td>
</tr>
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<p class="hint_directive">Warning: this symbol is deprecated.</p><p>
Searches for %x patterns and replaces them with specified strings. Something like a more generalized Format routine.
<p>More precisely: every two-char sequence that starts with PercentChar and then is followed by one of Replaces[I].c characters is replaced with appropriate Replaces[i].s. Moreover, a pair of two PercentChar characters is replaced with one PercentChar character.
<p><i>For example</i>, assume that Replaces contains two items: <code>(c: 'B'; s: '<bold>'), (c: 'b'; s: '</bold>')</code>. Then <code><a class="normal" href="CastleStringUtils.html#SPercentReplace">SPercentReplace</a>('100%% of cats are %Bcute%b', Replaces)</code> will return string <code>'100% of cats are <bold>cute</bold>'</code>.
<p><a class="normal" href="CastleStringUtils.EUnknownPercentFormat.html">EUnknownPercentFormat</a> is raised if we will see two-char sequence that starts with PercentChar and then is followed by character that is not any Replaces[i].c and is not PercentChar. Also, a single PercentChar at the end of the string is an error.
<p><i>For example</i>, assume that Replaces contains the same two items as previously. Following calls will result in <a class="normal" href="CastleStringUtils.EUnknownPercentFormat.html">EUnknownPercentFormat</a> being raised: <code><a class="normal" href="CastleStringUtils.html#SPercentReplace">SPercentReplace</a>('Unknown sequence %x', Replaces)</code>, <code><a class="normal" href="CastleStringUtils.html#SPercentReplace">SPercentReplace</a>('Unterminated sequence %', Replaces)</code>.
<p>If ErrorOnUnknownPercentFormat is <code>False</code>, then <a class="normal" href="CastleStringUtils.EUnknownPercentFormat.html">EUnknownPercentFormat</a> will not be raised. Instead, incorrect sequence (like %x or unterminated % in examples above) will simply be left in the string.
<p>Of course, replacing is done intelligently. Which means that e.g. sequence of four % characters will be correctly transformed into two % characters.
<p>Note that IgnoreCase is used to match characters for Replaces[I].c. IgnoreCase is not used when it comes to comparing with PercentChar character, i.e. even when PercentChar will be set to some letter, it will always be compared in case-sensitive manner, regardless of IgnoreCase value.
<p>It is undefined (meaning: don't do it) what happens if Replaces array contains more than once the same character C, or if any character C in Replaces array is equal to PercentChar.
<p>ReplacementsDone, if passed, will return how many replacements were done. Not counting "meaningless" replacements of pair of PercentChar to one PercentChar (that is, we count only actual replacements from Replaces array).
<p>
<p> Do not use. Use standard StrUtils.StringsReplace instead. This procedure has no place in a game engine...
<p></p>
<h6 class="description_section">Exceptions raised</h6>
<dl class="exceptions_raised">
<dt><a class="normal" href="CastleStringUtils.EUnknownPercentFormat.html">EUnknownPercentFormat</a></dt>
<dd>In case of error in InitialFormat string, if ErrorOnUnknownPercentFormat is <code>True</code>.</dd>
</dl>
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</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="SPercentReplace"></a><code>function <b>SPercentReplace</b>(const InitialFormat: string; const Replaces: array of <a href="CastleStringUtils.TPercentReplace.html">TPercentReplace</a>; ErrorOnUnknownPercentFormat: boolean = true; PercentChar: char ='%'; IgnoreCase: boolean = false): string; overload;</code></td>
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<td class="itemcode"><a name="FormatNameCounter"></a><code>function <b>FormatNameCounter</b>(const NamePattern: string; const Index: Integer; const AllowOldPercentSyntax: boolean; out ReplacementsDone: Cardinal): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Replace sequences <code>@counter(<padding>)</code> in the NamePattern with Index. Any sequence <code>@counter(<padding>)</code> is detected (where <padding> is any integer >= 0) and replaced with Index padded with zeros (to given <padding> length).
<p>If AllowOldPercentSyntax is <code>True</code> then we also allow older deprecated syntax: replace %d in the NamePattern with Index. This is used only if <code>@counter(<padding>)</code> was not found in NamePattern.
<p></p>
<ul class="paragraph_spacing">
<li><p>%d is replaced with Index.
<p>You can insert a non-negative number between % and d, to pad the counter with zeros to desired length. For example, with Counter = 2, %d is replaced with just "2", %2d is replaced with "02", %4d is replaced with "0002".</p></li>
<li><p>%% is replaced with single percent char %.</p></li>
<li><p>Everything else is just copied to resulting string. Not recognized %-patterns are also just copied. The main purpose of this is to specify filenames with optional placeholders, so unrecognized stuff should be gracefully ignored.</p></li>
</ul>
<p>
<p>The percent syntax was deprecated as it cannot be used with URLs. Inside URLs, percent character must always be encodede as <code>%25</code>. Sequence like <code>%4d</code> must mean letter "M" (ASCII 77, which is 4d in hexadecimal) inside URL. We could potentially allow syntax like <code>%25d</code> or <code>%254d</code> (4-digit counter), but that's just ugly, and compatibility had to be broken anyway (after Castle Game Engine 4.0.1, you have to fix URLs to image sequences anyway, as <code>%4d</code> must mean letter "M").
<p>See <a href="http://castle-engine.sourceforge.net/x3d_extensions.php#section_ext_movie_from_image_sequence">http://castle-engine.sourceforge.net/x3d_extensions.php#section_ext_movie_from_image_sequence</a> for an example when this is useful.
<p></p>
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<td class="itemcode"><a name="FormatNameCounter"></a><code>function <b>FormatNameCounter</b>(const NamePattern: string; const Index: Integer; const AllowOldPercentSyntax: boolean): string;</code></td>
</tr>
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</td></tr>
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<td class="itemcode"><a name="DigitAsChar"></a><code>function <b>DigitAsChar</b>(b: byte): char;</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert digit (like number 0) to character (like '0'). Use only for arguments within 0..9 range.</p>
</td></tr>
</table>
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<td class="itemcode"><a name="DigitAsByte"></a><code>function <b>DigitAsByte</b>(c: char): byte;</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert digit character (like '0') to a number (like 0). Use only for characters in '0'...'9' range.</p>
</td></tr>
</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="IntToStrZPad"></a><code>function <b>IntToStrZPad</b>(n: integer; minLength: integer): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert integer to string, padding string with zeros if needed.</p>
</td></tr>
</table>
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<td class="itemcode"><a name="IntToStrBase"></a><code>function <b>IntToStrBase</b>(const n: Int64; Base: Byte): string; overload;</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert integer to string, in base-Base (like base-16) numeral system. For digits above '9', we will use upper letters 'A', 'B'... etc. That's also why Base cannot be larger than 'Z'-'A' + 1 + 10 (we would not have enough digits then).
<p>Overloaded versions with MinLength pad result with zeros to have at least MinLength.
<p></p>
</td></tr>
</table>
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<td class="itemcode"><a name="IntToStrBase"></a><code>function <b>IntToStrBase</b>( n: QWord; Base: Byte): string; overload;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
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<td class="itemcode"><a name="IntToStrBase"></a><code>function <b>IntToStrBase</b>(const n: Int64; Base: Byte; minLength: Cardinal): string; overload;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="IntToStrBase"></a><code>function <b>IntToStrBase</b>(const n: QWord; Base: Byte; minLength: Cardinal): string; overload;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="IntToStr2"></a><code>function <b>IntToStr2</b>(n: Int64; const MinLength: Cardinal = 1; const ZeroDigit: char = '0'; const OneDigit: char = '1'; const MinusSign: char = '-'): string; overload;</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert integer to binary (base-2 numeral system). MinLength means to left-pad result with zeros if necessary.</p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="IntToStr16"></a><code>function <b>IntToStr16</b>(const n: Int64; const minLength: Cardinal = 1): string; overload;</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert integer to hexadecimal (base-16 numeral system). </p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="IntToStr16"></a><code>function <b>IntToStr16</b>(const n: QWord; const minLength: Cardinal = 1): string; overload;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
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<td class="itemcode"><a name="PointerToStr"></a><code>function <b>PointerToStr</b>(Ptr: Pointer): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Returns Ptr as 0xXXX... hexadecimal value. "0x" is not a Pascal standard for coding hex values, but it's so popular that users are more likely to "get" 0x notation.</p>
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</table>
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<td class="itemcode"><a name="Str2ToInt"></a><code>function <b>Str2ToInt</b>(const s: string): integer;</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert string representing binary number to an integer. String must contain only '0', '1' (digits) and start with an optional sign (+ or -). </p>
<h6 class="description_section">Exceptions raised</h6>
<dl class="exceptions_raised">
<dt><code>EConvertError</code></dt>
<dd>On problems with conversion.</dd>
</dl>
</td></tr>
</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="StrHexToInt"></a><code>function <b>StrHexToInt</b>(const s: string): Int64;</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert string with hexadecimal number to an integer. String must contain only digits (0-9, a-z, A-Z), and with an optional sign (+ or -). </p>
<h6 class="description_section">Exceptions raised</h6>
<dl class="exceptions_raised">
<dt><code>EConvertError</code></dt>
<dd>On problems with conversion.</dd>
</dl>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="StrToFloatDef"></a><code>function <b>StrToFloatDef</b>(const s: string; DefValue: Extended): Extended;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="SetToStr"></a><code>function <b>SetToStr</b>(const SetVariable; NumStart, NumEnd: byte): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert a set to a string representation, in somewhat hacky way. This assumes that given SetVariable is a set value, and the set type is "set of [NumStart .. NumEnd]".
<p><i>Implementation is heavily dependent on how the sets are internally stored.</i> For now, we depend that a set of [NumStart .. NumEnd] behaves like a set of Byte, shifted to the left (i.e., NumStart corresponds to a 0 in set of Byte). This is not necessarily true ! For example in Delphi 5 (as far as I remember — I don't have this Delphi now, and I don't remember on which Delphi version I observed this) set of 1..16 uses first three bytes, and the first bit (that would correspond to 0) is simply wasted. In fact, SizeOf such set is still 4, which means that internally sets eat 4 bytes anyway. But SizeOf set 200..216 is also 4, which means that the compiler is smart and doesn't waste too much space to store only 17 bits.
<p>This all is not a rant on internal set handling by Delphi. On the contrary, Delphi does it for speed reasons, and that's very good. This is just a warning that <code>SetToStr</code> is not really reliable, and you may need to experiment a little with NumStart / NumEnd values to get sensible results. Although if your set is like "set of [0 ... something]", this should usually work OK,
<p>Still: <i>this function should be used only for debug purposes. Don't depend on it working 100% correctly always — it can't, because we can't depend on how compiler stores sets.</i></p>
</td></tr>
</table>
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<tr class="list">
<td class="itemcode"><a name="PCharOrNil"></a><code>function <b>PCharOrNil</b>(const s: string): PChar;</code></td>
</tr>
<tr><td colspan="1">
<p>
<code>PCharOrNil</code> simply returns a Pointer(S), you can think of it as a NO-OP. If string is empty, this returns <code>Nil</code>, otherwise it works just like PChar(S): returns a Pointer(S) with appropriate type cast.</p>
</td></tr>
</table>
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<td class="itemcode"><a name="SCompressWhiteSpace"></a><code>function <b>SCompressWhiteSpace</b>(const S: string): string;</code></td>
</tr>
<tr><td colspan="1">
<p>
Replace any number of consecutive whitespace (including newlines) with a single whitespace. This is nice when you have a string (possibly multiline) supplied by user, and you want to use this for some UI item (like window's caption or menu item) — this "sanitizes" whitespace inside such string.</p>
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</table>
<h3 class="detail">Types</h3>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="TDynamicStringArray"></a><code><b>TDynamicStringArray</b> = array of string;</code></td>
</tr>
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</td></tr>
</table>
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<td class="itemcode"><a name="TSearchOptions"></a><code><b>TSearchOptions</b> = set of (soMatchCase, soWholeWord, soBackwards);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="TSetOfChars"></a><code><b>TSetOfChars</b> = SysUtils.TSysCharSet;</code></td>
</tr>
<tr><td colspan="1">
<p>
A set of chars.</p>
</td></tr>
</table>
<h3 class="detail">Constants</h3>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="AllChars"></a><code><b>AllChars</b> = [Low(Char) .. High(Char)];</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="DefaultWordBorders"></a><code><b>DefaultWordBorders</b> = <a href="CastleStringUtils.html#AllChars">AllChars</a> - ['a'..'z', 'A'..'Z', '0'..'9', '_'];</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="WhiteSpaces"></a><code><b>WhiteSpaces</b> = [' ', #9, #10, #13];</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="SimpleAsciiCharacters"></a><code><b>SimpleAsciiCharacters</b> = [#32 .. #126];</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="BoolToStr"></a><code><b>BoolToStr</b>: array[boolean] of string=('FALSE','TRUE');</code></td>
</tr>
<tr><td colspan="1">
<p>
Convert boolean to string, using a simple table lookup.
<p>I don't use <code>BoolToStr</code> function from SysUtils unit, since there are differences in FPC implementations: </p>
<ul class="paragraph_spacing">
<li><p>In FPC <= 2.0.4, <code>BoolToStr</code> takes one param and returns 'FALSE' or 'TRUE' string.</p></li>
<li><p>In FPC > 2.0.4 (trunk (2.3.1 currently), and fixes_2_2 (2,1.3)), <code>BoolToStr</code> was changed for Delphi compat. Now when passed only 1 param it returns 0 or -1 (who the hell needs such <code>BoolToStr</code> interpretation ?).
<p>You have to pass 2nd param to <code>BoolToStr</code> as <code>True</code> to get strings 'False' and 'True'. But this makes it non-compileable in FPC <= 2.0.4. So to call <code>BoolToStr</code> like I want to, I would have to use ugly $ifdefs...</p></li>
</ul>
<p>
<p>So I decided to use my <code>BoolToStr</code> table throughout my units. When I'll switch fully to FPC > 2.0.4, I'll drop this and use <code>BoolToStr</code> function from SysUtils unit.</p>
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</table>
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<td class="itemcode"><a name="BoolToStrYesNo"></a><code><b>BoolToStrYesNo</b>: array[boolean]of string = ('No','Yes');</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="CtrlA"></a><code><b>CtrlA</b> = Chr(Ord('a') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="CtrlB"></a><code><b>CtrlB</b> = Chr(Ord('b') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
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<td class="itemcode"><a name="CtrlC"></a><code><b>CtrlC</b> = Chr(Ord('c') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="CtrlD"></a><code><b>CtrlD</b> = Chr(Ord('d') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlE"></a><code><b>CtrlE</b> = Chr(Ord('e') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlF"></a><code><b>CtrlF</b> = Chr(Ord('f') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlG"></a><code><b>CtrlG</b> = Chr(Ord('g') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="CtrlH"></a><code><b>CtrlH</b> = Chr(Ord('h') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="CtrlI"></a><code><b>CtrlI</b> = Chr(Ord('i') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="CtrlJ"></a><code><b>CtrlJ</b> = Chr(Ord('j') - Ord('a') + 1);</code></td>
</tr>
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</td></tr>
</table>
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<td class="itemcode"><a name="CtrlK"></a><code><b>CtrlK</b> = Chr(Ord('k') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
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<td class="itemcode"><a name="CtrlL"></a><code><b>CtrlL</b> = Chr(Ord('l') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlM"></a><code><b>CtrlM</b> = Chr(Ord('m') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlN"></a><code><b>CtrlN</b> = Chr(Ord('n') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlO"></a><code><b>CtrlO</b> = Chr(Ord('o') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlP"></a><code><b>CtrlP</b> = Chr(Ord('p') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlQ"></a><code><b>CtrlQ</b> = Chr(Ord('q') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlR"></a><code><b>CtrlR</b> = Chr(Ord('r') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlS"></a><code><b>CtrlS</b> = Chr(Ord('s') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlT"></a><code><b>CtrlT</b> = Chr(Ord('t') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlU"></a><code><b>CtrlU</b> = Chr(Ord('u') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlV"></a><code><b>CtrlV</b> = Chr(Ord('v') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlW"></a><code><b>CtrlW</b> = Chr(Ord('w') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlX"></a><code><b>CtrlX</b> = Chr(Ord('x') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlY"></a><code><b>CtrlY</b> = Chr(Ord('y') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CtrlZ"></a><code><b>CtrlZ</b> = Chr(Ord('z') - Ord('a') + 1);</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CharBackSpace"></a><code><b>CharBackSpace</b> = #8;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CharTab"></a><code><b>CharTab</b> = #9;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CharEnter"></a><code><b>CharEnter</b> = #13;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CharEscape"></a><code><b>CharEscape</b> = #27;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="itemcode"><a name="CharDelete"></a><code><b>CharDelete</b> = #127;</code></td>
</tr>
<tr><td colspan="1">
</td></tr>
</table>
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