52 lines
1.6 KiB
C#
52 lines
1.6 KiB
C#
using System.Text.RegularExpressions;
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namespace Mustache
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{
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/// <summary>
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/// Provides utility methods that require regular expressions.
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/// </summary>
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internal static class RegexHelper
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{
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public const string Key = @"[_\w][_\w\d]*";
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public const string String = @"'.*?'";
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public const string Number = @"[-+]?\d*\.?\d+";
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public const string CompoundKey = "@?" + Key + @"(?:\." + Key + ")*";
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public const string Argument = @"(?:(?<arg_key>" + CompoundKey + @")|(?<arg_string>" + String + @")|(?<arg_number>" + Number + @"))";
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/// <summary>
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/// Determines whether the given name is a legal identifier.
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/// </summary>
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/// <param name="name">The name to check.</param>
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/// <returns>True if the name is a legal identifier; otherwise, false.</returns>
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public static bool IsValidIdentifier(string name)
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{
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if (name == null)
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{
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return false;
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}
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Regex regex = new Regex("^" + Key + "$");
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return regex.IsMatch(name);
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}
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public static bool IsString(string value)
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{
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if (value == null)
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{
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return false;
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}
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Regex regex = new Regex("^" + String + "$");
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return regex.IsMatch(value);
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}
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public static bool IsNumber(string value)
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{
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if (value == null)
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{
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return false;
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}
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Regex regex = new Regex("^" + Number + "$");
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return regex.IsMatch(value);
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}
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}
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}
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