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//
// WordParser.cs
//
// Author:
// Michael Hutchinson <mhutch@xamarin.com>
//
// Copyright (c) 2012 Xamarin Inc. (http://xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Collections.Generic;
namespace ICSharpCode.NRefactory.CSharp
{
public static class WordParser
{
public static List<string> BreakWords (string identifier)
{
var words = new List<string> ();
int wordStart = 0;
bool lastWasLower = false, lastWasUpper = false;
for (int i = 0; i < identifier.Length; i++) {
char c = identifier[i];
var category = char.GetUnicodeCategory (c);
if (category == System.Globalization.UnicodeCategory.LowercaseLetter) {
if (lastWasUpper && (i - wordStart) > 2) {
words.Add (identifier.Substring (wordStart, i - wordStart - 1));
wordStart = i - 1;
}
lastWasLower = true;
lastWasUpper = false;
} else if (category == System.Globalization.UnicodeCategory.UppercaseLetter) {
if (lastWasLower) {
words.Add (identifier.Substring (wordStart, i - wordStart));
wordStart = i;
}
lastWasLower = false;
lastWasUpper = true;
} else {
if (c == '_') {
if ((i - wordStart) > 0)
words.Add(identifier.Substring(wordStart, i - wordStart));
wordStart = i + 1;
lastWasLower = lastWasUpper = false;
}
}
}
if (wordStart < identifier.Length)
words.Add (identifier.Substring (wordStart));
return words;
}
}
}
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