fix: replace zero width spaces with appropriate ones (#138)

* Version Bump * Merge branch 'master' of https://github.com/tophat/RichTextView * Update StringExtension.swift
tophat · Feb 18, 2020 · 52b87e3 · 52b87e3
1 parent b557c92
commit 52b87e3
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/Source/Extensions/StringExtension.swift b/Source/Extensions/StringExtension.swift
@@ -7,6 +7,11 @@
 //
 
 extension String {
+    func replaceAppropiateZeroWidthSpaces() -> String? {
+        var newString = self
+        let cleanString = try? newString.replacingOccurrences(of: "\u{200B}", with: "\u{200D}")
+        return cleanString
+    }
     func replaceTrailingWhiteSpaceWithNonBreakingSpace() -> String {
         var newString = self
         while newString.last?.isWhitespace == true {

diff --git a/Source/Text Parsing/RichTextParser.swift b/Source/Text Parsing/RichTextParser.swift
@@ -115,7 +115,8 @@ class RichTextParser {
         ]
         let cleanRelevantString = relevantString.replaceTrailingWhiteSpaceWithNonBreakingSpace().replaceLeadingWhiteSpaceWithNonBreakingSpace()
         guard let inputAsHTMLString = try? Down(markdownString: cleanRelevantString).toHTML([.unsafe, .hardBreaks]),
-            let htmlData = inputAsHTMLString.data(using: .utf8) else {
+            let inputAsHTMLStringWithZeroWidthSpaceRemoved = inputAsHTMLString.replaceAppropiateZeroWidthSpaces(),
+            let htmlData = inputAsHTMLStringWithZeroWidthSpaceRemoved.data(using: .utf8) else {
                 return (nil, ParsingError.attributedTextGeneration(text: relevantString))
         }
         var attributedString: NSAttributedString?