114 lines
3.5 KiB
C#
114 lines
3.5 KiB
C#
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#if MOBILE
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using System;
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using System.Globalization;
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namespace Microsoft.CSharp
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{
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internal class CodeDomProvider
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{
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public string CreateEscapedIdentifier (string name)
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{
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// Any identifier started with two consecutive underscores are
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// reserved by CSharp.
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if (IsKeyword(name) || IsPrefixTwoUnderscore(name)) {
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return "@" + name;
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}
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return name;
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}
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static bool IsKeyword(string value) {
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return false;
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}
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static bool IsPrefixTwoUnderscore(string value) {
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if( value.Length < 3) {
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return false;
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}
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else {
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return ((value[0] == '_') && (value[1] == '_') && (value[2] != '_'));
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}
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}
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}
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internal class CSharpCodeProvider : CodeDomProvider
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{
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}
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class CodeGenerator
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{
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public static bool IsValidLanguageIndependentIdentifier(string value)
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{
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return IsValidTypeNameOrIdentifier(value, false);
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}
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private static bool IsValidTypeNameOrIdentifier(string value, bool isTypeName) {
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bool nextMustBeStartChar = true;
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if (value.Length == 0)
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return false;
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// each char must be Lu, Ll, Lt, Lm, Lo, Nd, Mn, Mc, Pc
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//
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for(int i = 0; i < value.Length; i++) {
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char ch = value[i];
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UnicodeCategory uc = Char.GetUnicodeCategory(ch);
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switch (uc) {
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case UnicodeCategory.UppercaseLetter: // Lu
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case UnicodeCategory.LowercaseLetter: // Ll
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case UnicodeCategory.TitlecaseLetter: // Lt
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case UnicodeCategory.ModifierLetter: // Lm
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case UnicodeCategory.LetterNumber: // Lm
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case UnicodeCategory.OtherLetter: // Lo
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nextMustBeStartChar = false;
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break;
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case UnicodeCategory.NonSpacingMark: // Mn
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case UnicodeCategory.SpacingCombiningMark: // Mc
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case UnicodeCategory.ConnectorPunctuation: // Pc
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case UnicodeCategory.DecimalDigitNumber: // Nd
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// Underscore is a valid starting character, even though it is a ConnectorPunctuation.
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if (nextMustBeStartChar && ch != '_')
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return false;
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nextMustBeStartChar = false;
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break;
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default:
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// We only check the special Type chars for type names.
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if (isTypeName && IsSpecialTypeChar(ch, ref nextMustBeStartChar)) {
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break;
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}
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return false;
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}
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}
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return true;
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}
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private static bool IsSpecialTypeChar(char ch, ref bool nextMustBeStartChar) {
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switch(ch) {
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case ':':
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case '.':
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case '$':
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case '+':
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case '<':
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case '>':
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case '-':
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case '[':
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case ']':
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case ',':
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case '&':
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case '*':
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nextMustBeStartChar = true;
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return true;
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case '`':
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return true;
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}
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return false;
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}
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}
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}
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#endif
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