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FLocal/Core/extensions/String.cs

75 lines
2.4 KiB

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace FLocal.Core {
public static class StringExtension {
public static string PHPSubstring(this string str, int start, int length) {
if(start > str.Length) {
return "";
} else if(start + length > str.Length) {
return str.Substring(start);
} else {
return str.Substring(start, length);
}
}
public static string PHPSubstring(this string str, int start) {
if(start > str.Length) {
return "";
} else {
return str.Substring(start);
}
}
public static string Enquote(this string str, string quotationMark) {
return quotationMark + str + quotationMark;
}
public static string Enquote(this string str) {
return str.Enquote("'");
}
public static string Replace(this string src, IEnumerable<KeyValuePair<string, string>> replacePairs) {
string dest = src;
foreach(KeyValuePair<string, string> kvp in replacePairs) {
dest = dest.Replace(kvp.Key, kvp.Value);
}
return dest;
}
public static bool Contains(this string str, IEnumerable<string> needles) {
return (from needle in needles select str.Contains(needle)).Contains(true);
}
public static bool IContains(this string str, IEnumerable<string> needles) {
return str.ToLower().Contains(from needle in needles select needle.ToLower());
}
private static readonly string[] TrimHtml_EmptyFragments = new string[] {
"<br/>",
"<br />",
"&nbsp;",
};
public static string TrimHtml(this string str) {
string result = str.Trim();
foreach(var fragment in TrimHtml_EmptyFragments) {
if(result.StartsWith(fragment)) {
return result.Substring(fragment.Length).TrimHtml();
}
if(result.EndsWith(fragment)) {
return result.Substring(0, result.Length-fragment.Length).TrimHtml();
}
}
return result;
}
public static string Join<T>(this IEnumerable<T> parts, string separator) {
return String.Join(separator, (from part in parts select part.ToString()).ToArray());
}
}
}