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Pangu.cs
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Pangu.cs
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using System.Text.RegularExpressions;
namespace Pangu
{
public static class Pangu
{
private const string _CJK = "\u2e80-\u2eff\u2f00-\u2fdf\u3040-\u309f\u30a0-\u30fa\u30fc-\u30ff\u3100-\u312f\u3200-\u32ff\u3400-\u4dbf\u4e00-\u9fff\uf900-\ufaff";
private static readonly Regex _CJK_ToFullwidth_CJK = new Regex(
$"([{_CJK}])[ ]*([\\:]+|\\.)[ ]*([{_CJK}])"
);
private static readonly MatchEvaluator _CJK_ToFullwidth_CJK_Evaluator = new MatchEvaluator(
match => match.Groups[1].Value
+ match.Groups[2].Value.Replace(':', ':').Replace('.', '。')
+ match.Groups[3].Value
);
private static readonly Regex _CJK_ToFullwidth = new Regex(
$"([{_CJK}])[ ]*([~\\!;,\\?]+)[ ]*"
);
private static readonly MatchEvaluator _CJK_ToFullwidth_Evaluator = new MatchEvaluator(
match => match.Groups[1].Value
+ match.Groups[2].Value.Replace('~', '~').Replace('!', '!').Replace(';', ';').Replace(',', ',').Replace('?', '?')
);
private static readonly Regex _Dots_CJK = new Regex(
$"([{_CJK}])(#([^ ]))"
);
private static readonly Regex _CJK_Colon_ANs = new Regex(
$"([{_CJK}])\\:([A-Z0-9\\(\\)])"
);
private static readonly Regex _AnyCJK = new Regex(
$"[{_CJK}]"
);
private static readonly Regex _CJK_Quote = new Regex(
$"([{_CJK}])([`\"\u05f4])"
);
private static readonly Regex _Quote_CJK = new Regex(
"([`\"\u05f4])([{CJK}])"
);
private static readonly Regex _Quote_Any_Quote = new Regex(
"([`\"\u05f4]+)(\\s*)(.+?)(\\s*)([`\"\u05f4]+)"
);
private static readonly Regex _CJK_PossessiveSingleQuote = new Regex(
$"([{_CJK}])('[^s])"
);
private static readonly Regex _SingleQuote_CJK = new Regex(
$"(')([{_CJK}])"
);
private static readonly Regex _PossessiveSingleQuote = new Regex(
$"([{_CJK}A-Za-z0-9])( )('s)"
);
private static readonly Regex _Hash_ANs_CJK_HASH = new Regex(
$"([{_CJK}])(#)([{_CJK}]+)(#)([{_CJK}])"
);
private static readonly Regex _CJK_Hash = new Regex(
$"([{_CJK}])(#([^ ]))"
);
private static readonly Regex _Hash_CJK = new Regex(
$"(#([^ ]))([{_CJK}])"
);
private static readonly Regex _CJK_Operator_ANs = new Regex(
$"([{_CJK}])([\\+\\-\\*\\/=&\\|<>])([A-Za-z0-9])"
);
private static readonly Regex _ANs_Operator_CJK = new Regex(
$"([A-Za-z0-9])([\\+\\-\\*\\/=&\\|<>])([{_CJK}])"
);
private static readonly Regex _Slash_As = new Regex(
"([/]) ([a-z\\-_\\./]+)"
);
private static readonly Regex _Slash_As_Slash = new Regex(
"([/\\.])([A-Za-z\\-_\\./]+) ([/])"
);
private static readonly Regex _CJK_LeftBracket = new Regex(
$"([{_CJK}])([\\(\\[\\{{<>\u201c])"
);
private static readonly Regex _RightBracket_CJK = new Regex(
$"([\\)\\]\\}}<>\u201d])([{_CJK}])"
);
private static readonly Regex _LeftBracket_Any_RightBracket = new Regex(
$"([\\(\\[\\{{<\u201c]+)(\\s*)(.+?)(\\s*)([\\)\\]\\}}>\u201d]+)"
);
private static readonly Regex _ANsCJK_LeftBracket_Any_RightBracket = new Regex(
$"([A-Za-z0-9{_CJK}])[ ]*([\u201c])([A-Za-z0-9{_CJK}\\-_ ]+)([\u201d])"
);
private static readonly Regex _LeftBracket_Any_RightBracket_ANsCJK = new Regex(
$"([\u201c])([A-Za-z0-9{_CJK}\\-_ ]+)([\u201d])[ ]*([A-Za-z0-9{_CJK}])"
);
private static readonly Regex _AN_LeftBracket = new Regex(
"([A-Za-z0-9])([\\(\\[\\{])"
);
private static readonly Regex _RightBracket_AN = new Regex(
"([\\)\\]\\}])([A-Za-z0-9])"
);
private static readonly Regex _CJK_ANs = new Regex(
$"([{_CJK}])([A-Za-z\u0370-\u03ff0-9@\\$%\\^&\\*\\-\\+\\\\=\\|/\u00a1-\u00ff\u2150-\u218f\u2700—\u27bf])"
);
private static readonly Regex _ANs_CJK = new Regex(
$"([A-Za-z\u0370-\u03ff0-9~\\!\\$%\\^&\\*\\-\\+\\\\=\\|;:,\\./\\?\u00a1-\u00ff\u2150-\u218f\u2700—\u27bf])([{_CJK}])"
);
private static readonly Regex _Persent_A = new Regex(
"(%)([A-Za-z])"
);
private static readonly Regex _MiddleDot = new Regex(
"([ ]*)([\u00b7\u2022\u2027])([ ]*)"
);
public static void SpacingText(ref string text)
{
if (text.Length <= 1 || !_AnyCJK.IsMatch(text)) return;
text = _CJK_ToFullwidth_CJK.Replace(text, _CJK_ToFullwidth_CJK_Evaluator);
text = _CJK_ToFullwidth.Replace(text, _CJK_ToFullwidth_Evaluator);
text = _Dots_CJK.Replace(text, "$1 $2");
text = _CJK_Colon_ANs.Replace(text, "$1:$2");
text = _CJK_Quote.Replace(text, "$1 $2");
text = _Quote_CJK.Replace(text, "$1 $2");
text = _Quote_Any_Quote.Replace(text, "$1$3$5");
text = _CJK_PossessiveSingleQuote.Replace(text, "$1 $2");
text = _SingleQuote_CJK.Replace(text, "$1 $2");
text = _PossessiveSingleQuote.Replace(text, "$1's");
text = _Hash_ANs_CJK_HASH.Replace(text, "$1 $2$3$4 $5");
text = _CJK_Hash.Replace(text, "$1 $2");
text = _Hash_CJK.Replace(text, "$1 $3");
text = _CJK_Operator_ANs.Replace(text, "$1 $2 $3");
text = _ANs_Operator_CJK.Replace(text, "$1 $2 $3");
text = _Slash_As.Replace(text, "$1$2");
text = _Slash_As_Slash.Replace(text, "$1$2$3");
text = _CJK_LeftBracket.Replace(text, "$1 $2");
text = _RightBracket_CJK.Replace(text, "$1 $2");
text = _LeftBracket_Any_RightBracket.Replace(text, "$1$3$5");
text = _ANsCJK_LeftBracket_Any_RightBracket.Replace(text, "$1 $2$3$4");
text = _LeftBracket_Any_RightBracket_ANsCJK.Replace(text, "$1$2$3 $4");
text = _AN_LeftBracket.Replace(text, "$1 $2");
text = _RightBracket_AN.Replace(text, "$1 $2");
text = _CJK_ANs.Replace(text, "$1 $2");
text = _ANs_CJK.Replace(text, "$1 $2");
text = _Persent_A.Replace(text, "$1 $2");
text = _MiddleDot.Replace(text, "・");
}
public static string SpacingText(string text)
{
string output = text;
SpacingText(ref output);
return output;
}
}
}
namespace Pangu.Extensions
{
public static class Extensions
{
public static string SpacingText(this string text)
{
string output = text;
Pangu.SpacingText(ref output);
return output;
}
}
}