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Handle tags in "Toggle casing"

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This commit is contained in:
niksedk 2023-04-15 08:29:12 +02:00
parent 028351c40b
commit 26cf12bc74
2 changed files with 169 additions and 38 deletions
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56
src/Test/Core/StringExtensionsTest.cs
View File

@ -272,5 +272,61 @@ namespace Test.Core
var res = CalcFactory.MakeCalculator(nameof(CalcNoSpace)).CountCharacters(input, false);
Assert.AreEqual("HalloBye!".Length, res);
}
[TestMethod]
public void ToggleCasing1()
{
var input = "how are you";
var res = input.ToggleCasing();
Assert.AreEqual("How Are You", res);
}
[TestMethod]
public void ToggleCasing1WithItalic()
{
var input = "how <i>are</i> you";
var res = input.ToggleCasing();
Assert.AreEqual("How <i>Are</i> You", res);
}
[TestMethod]
public void ToggleCasing1WithItalicStart()
{
var input = "<i>how</i> are you";
var res = input.ToggleCasing();
Assert.AreEqual("<i>How</i> Are You", res);
}
[TestMethod]
public void ToggleCasing1WithItalicEnd()
{
var input = "how are <i>you</i>";
var res = input.ToggleCasing();
Assert.AreEqual("How Are <i>You</i>", res);
}
[TestMethod]
public void ToggleCasing1WithItalicEndAndBold()
{
var input = "how are <i><b>you</b></i>";
var res = input.ToggleCasing();
Assert.AreEqual("How Are <i><b>You</b></i>", res);
}
[TestMethod]
public void ToggleCasing2()
{
var input = "How Are You";
var res = input.ToggleCasing();
Assert.AreEqual("HOW ARE YOU", res);
}
[TestMethod]
public void ToggleCasing3()
{
var input = "HOW ARE YOU";
var res = input.ToggleCasing();
Assert.AreEqual("how are you", res);
}
}
}

151
src/libse/Common/StringExtensions.cs
View File

@ -235,22 +235,22 @@ namespace Nikse.SubtitleEdit.Core.Common
return -1;
}
char c0 = pattern[0];
var c0 = pattern[0];
if (pattern.Length == 1)
{
return source.IndexOf(c0);
}
int limit = source.Length - pattern.Length + 1;
var limit = source.Length - pattern.Length + 1;
if (limit < 1)
{
return -1;
}
char c1 = pattern[1];
var c1 = pattern[1];
// Find the first occurrence of the first character
int first = source.IndexOf(c0, 0, limit);
var first = source.IndexOf(c0, 0, limit);
while (first != -1)
{
// Check if the following character is the same like
@ -263,7 +263,7 @@ namespace Nikse.SubtitleEdit.Core.Common
// Check the rest of "pattern" (starting with the 3rd character)
var found = true;
for (int j = 2; j < pattern.Length; j++)
for (var j = 2; j < pattern.Length; j++)
{
if (source[first + j] != pattern[j])
{
@ -291,7 +291,7 @@ namespace Nikse.SubtitleEdit.Core.Common
return -1;
}
for (int i = 0; i < words.Length; i++)
for (var i = 0; i < words.Length; i++)
{
var idx = s.IndexOf(words[i], comparisonType);
if (idx >= 0)
@ -311,10 +311,10 @@ namespace Nikse.SubtitleEdit.Core.Common
}
const char whiteSpace = ' ';
int k = -1;
for (int i = s.Length - 1; i >= 0; i--)
var k = -1;
for (var i = s.Length - 1; i >= 0; i--)
{
char ch = s[i];
var ch = s[i];
if (k < 2)
{
if (ch == whiteSpace)
@ -325,7 +325,7 @@ namespace Nikse.SubtitleEdit.Core.Common
else if (ch != whiteSpace)
{
// only keep white space if it doesn't succeed/precede CRLF
int skipCount = (ch == '\n' || ch == '\r') || (k < s.Length && (s[k] == '\n' || s[k] == '\r')) ? 1 : 2;
var skipCount = (ch == '\n' || ch == '\r') || (k < s.Length && (s[k] == '\n' || s[k] == '\r')) ? 1 : 2;
// extra space found
if (k - (i + skipCount) >= 1)
@ -365,8 +365,8 @@ namespace Nikse.SubtitleEdit.Core.Common
return false;
}
int max = s.Length;
for (int index = 0; index < max; index++)
var max = s.Length;
for (var index = 0; index < max; index++)
{
var ch = s[index];
if (char.IsNumber(ch))
@ -387,7 +387,7 @@ namespace Nikse.SubtitleEdit.Core.Common
{
if (Environment.NewLine == "\r\n")
{
int i = 0;
var i = 0;
while (i < s.Length)
{
var ch = s[i];
@ -397,35 +397,34 @@ namespace Nikse.SubtitleEdit.Core.Common
{
return true;
}
i++;
}
else if (ch == '\n')
{
return true;
}
i++;
}
return false;
}
else if (Environment.NewLine == "\n")
if (Environment.NewLine == "\n")
{
return s.IndexOf('\r') >= 0;
}
else
{
s = s.Replace(Environment.NewLine, string.Empty);
return s.IndexOf('\n') >= 0 || s.IndexOf('\r') >= 0;
}
s = s.Replace(Environment.NewLine, string.Empty);
return s.IndexOf('\n') >= 0 || s.IndexOf('\r') >= 0;
}
public static string RemoveControlCharacters(this string s)
{
int max = s.Length;
var max = s.Length;
var newStr = new char[max];
int newIdx = 0;
var newIdx = 0;
for (int index = 0; index < max; index++)
{
var ch = s[index];
@ -445,8 +444,8 @@ namespace Nikse.SubtitleEdit.Core.Common
return true;
}
int max = s.Length;
for (int index = 0; index < max; index++)
var max = s.Length;
for (var index = 0; index < max; index++)
{
var ch = s[index];
if (!char.IsControl(ch) && !char.IsWhiteSpace(ch) && !UnicodeControlChars.Contains(ch))
@ -460,9 +459,9 @@ namespace Nikse.SubtitleEdit.Core.Common
public static string RemoveControlCharactersButWhiteSpace(this string s)
{
int max = s.Length;
var max = s.Length;
var newStr = new char[max];
int newIdx = 0;
var newIdx = 0;
for (int index = 0; index < max; index++)
{
var ch = s[index];
@ -496,13 +495,17 @@ namespace Nikse.SubtitleEdit.Core.Common
return s;
}
public static string ToggleCasing(this string text)
public static string ToggleCasing(this string input)
{
if (string.IsNullOrWhiteSpace(text) || text.ToLower() == text.ToUpper())
if (string.IsNullOrWhiteSpace(input))
{
return text;
return input;
}
var sb = new StringBuilder();
var tags = RemoveAndSaveTags(input, sb);
var text = sb.ToString();
var containsLowercase = false;
var containsUppercase = false;
for (var i = 0; i < text.Length; i++)
@ -525,17 +528,89 @@ namespace Nikse.SubtitleEdit.Core.Common
if (containsUppercase && containsLowercase)
{
return text.ToUpperInvariant();
return RestoreSavedTags(text.ToUpperInvariant(), tags);
}
if (containsUppercase && !containsLowercase)
if (containsUppercase)
{
return text.ToLowerInvariant();
return RestoreSavedTags(text.ToLowerInvariant(), tags);
}
return System.Threading.Thread.CurrentThread.CurrentCulture.TextInfo.ToTitleCase(text);
return RestoreSavedTags(System.Threading.Thread.CurrentThread.CurrentCulture.TextInfo.ToTitleCase(text), tags);
}
private static string RestoreSavedTags(string input, List<KeyValuePair<int, string>> tags)
{
var s = input;
for (var index = tags.Count - 1; index >= 0; index--)
{
var keyValuePair = tags[index];
s = s.Insert(keyValuePair.Key, keyValuePair.Value);
}
return s;
}
private static List<KeyValuePair<int, string>> RemoveAndSaveTags(string input, StringBuilder sb)
{
var sbTag = new StringBuilder();
var tags = new List<KeyValuePair<int, string>>();
var tagOn = false;
var tagIndex = 0;
for (var index = 0; index < input.Length; index++)
{
var ch = input[index];
if (tagOn && (ch == '>' || ch == '}'))
{
sbTag.Append(ch);
tagOn = false;
tags.Add(new KeyValuePair<int, string>(tagIndex, sbTag.ToString()));
sbTag.Clear();
continue;
}
if (!tagOn && ch == '<')
{
var s = input.Substring(index);
if (
s.StartsWith("<i>") ||
s.StartsWith("</i>") ||
s.StartsWith("<b>") ||
s.StartsWith("</b>") ||
s.StartsWith("<u>") ||
s.StartsWith("</u>") ||
s.StartsWith("<box>") ||
s.StartsWith("</box>") ||
s.StartsWith("<font ") ||
s.StartsWith("</font>"))
{
tagOn = true;
tagIndex = sb.Length;
}
}
else if (!tagOn && ch == '{')
{
var s = input.Substring(index);
if (s.StartsWith("{\\"))
{
tagOn = true;
tagIndex = index;
}
}
if (tagOn)
{
sbTag.Append(ch);
}
else
{
sb.Append(ch);
}
}
return tags;
}
public static string ToRtf(this string value)
{
return @"{\rtf1\ansi\ansicpg1252\deff0{\fonttbl\f0\fswiss Helvetica;}\f0\pard " + value.ToRtfPart() + @"\par" + Environment.NewLine + "}";
@ -659,7 +734,7 @@ namespace Nikse.SubtitleEdit.Core.Common
last == '-' && s.Length > 3 && s.EndsWith("--", StringComparison.Ordinal) && char.IsLetter(s[s.Length - 3]) ||
last == '—' && s.Length > 2 && char.IsLetter(s[s.Length - 2]);
}
public static string NormalizeUnicode(this string input, Encoding encoding)
{
const char defHyphen = '-'; // - Hyphen-minus (\u002D) (Basic Latin)