Remove now-redundant whitespace removal

Tusker/Extensions/AttributedString+Helpers.swift

@@ -8,23 +8,12 @@
 
 import Foundation
 
-private let ASCII_NEWLINE: unichar = 10
-private let ASCII_SPACE: unichar = 32
-
 extension NSAttributedString {
 
     var fullRange: NSRange {
         return NSRange(location: 0, length: self.length)
     }
 
-    /// Creates a new string with the whitespace collapsed according to the CSS Text Module Level 3 rules.
-    /// See https://www.w3.org/TR/css-text-3/#white-space-phase-1
-    func collapsingWhitespace() -> NSAttributedString {
-        let mut = NSMutableAttributedString(attributedString: self)
-        mut.collapseWhitespace()
-        return mut
-    }
-
 }
 
 extension NSMutableAttributedString {
@@ -58,56 +47,4 @@ extension NSMutableAttributedString {
         }
     }
 
-    /// Collapses whitespace in this string according to the CSS Text Module Level 3 rules.
-    /// See https://www.w3.org/TR/css-text-3/#white-space-phase-1
-    func collapseWhitespace() {
-        let str = self.mutableString
-        
-        var i = 0
-        while i < str.length {
-            if str.character(at: i) == ASCII_NEWLINE {
-                var j: Int
-                if i > 0 {
-                    // scan backwards to find beginning of space characters preceeding newline
-                    j = i - 1
-                    while j >= 0 {
-                        if str.character(at: j) != ASCII_SPACE {
-                            break
-                        }
-                        j -= 1
-                    }
-                    // add one after loop completes because start of range is _inclusive_
-                    j += 1
-                } else {
-                    j = 0
-                }
-                
-                var k: Int
-                if i < str.length - 1 {
-                    // scan forwards to find end of space characters following newline
-                    k = i + 1
-                    while k < str.length {
-                        if str.character(at: k) != ASCII_SPACE {
-                            break
-                        }
-                        k += 1
-                    }
-                    // don't need to subtract one before breaking out of loop, because end of range is _exclusive_
-                } else {
-                    // range end is _exclusive_, so use whole string length that way last character is included
-                    k = str.length
-                }
-                
-                // if there's only one character to be replaced, that means we'd be replacing the newline with a newline, so don't bother
-                if k - j > 1 {
-                    str.replaceCharacters(in: NSRange(location: j, length: k - j), with: "\n")
-                    
-                    // continue scanning through the string starting after the newline we just inserted
-                    i = j
-                }
-            }
-            i += 1
-        }
-    }
-    
 }

Tusker/HTMLConverter.swift

@@ -23,7 +23,7 @@ class HTMLConverter {
         return style
     }()
     
-    private var converter: AttributedStringConverter<Callbacks>
+    private let converter: AttributedStringConverter<Callbacks>
     
     init(font: UIFont, monospaceFont: UIFont, color: UIColor, paragraphStyle: NSParagraphStyle) {
         let config = AttributedStringConverterConfiguration(font: font, monospaceFont: monospaceFont, color: color, paragraphStyle: paragraphStyle)

Tusker/Screens/Compose/ComposeReplyContentView.swift

@@ -29,11 +29,7 @@ struct ComposeReplyContentView: UIViewRepresentable {
         
         view.overrideMastodonController = mastodonController
         let content = TimelineStatusCollectionViewCell.htmlConverter.convert(status.content)
-        let collapsedContent = NSMutableAttributedString(attributedString: content)
-        collapsedContent.collapseWhitespace()
-        collapsedContent.trimLeadingCharactersInSet(.whitespacesAndNewlines)
-        collapsedContent.trimTrailingCharactersInSet(.whitespacesAndNewlines)
-        view.attributedText = collapsedContent
+        view.attributedText = content
 
         return view
     }

Tusker/Views/Status/ConversationMainStatusCollectionViewCell.swift

@@ -418,11 +418,7 @@ class ConversationMainStatusCollectionViewCell: UICollectionViewListCell, Status
         
         let html = translation?.content ?? status.content
         let attributedContent = ConversationMainStatusCollectionViewCell.htmlConverter.convert(html)
-        let collapsedContent = NSMutableAttributedString(attributedString: attributedContent)
-        collapsedContent.collapseWhitespace()
-        collapsedContent.trimLeadingCharactersInSet(.whitespacesAndNewlines)
-        collapsedContent.trimTrailingCharactersInSet(.whitespacesAndNewlines)
-        doUpdateUI(status: status, content: collapsedContent)
+        doUpdateUI(status: status, content: attributedContent)
         
         if !status.spoilerText.isEmpty,
            let translated = translation?.spoilerText {

Tusker/Views/Status/TimelineStatusCollectionViewCell.swift

@@ -665,11 +665,7 @@ class TimelineStatusCollectionViewCell: UICollectionViewListCell, StatusCollecti
         }
         
         let content = precomputedContent ?? TimelineStatusCollectionViewCell.htmlConverter.convert(status.content)
-        let collapsedContent = NSMutableAttributedString(attributedString: content)
-        collapsedContent.collapseWhitespace()
-        collapsedContent.trimLeadingCharactersInSet(.whitespacesAndNewlines)
-        collapsedContent.trimTrailingCharactersInSet(.whitespacesAndNewlines)
-        doUpdateUI(status: status, content: collapsedContent)
+        doUpdateUI(status: status, content: content)
         
         doUpdateTimestamp(status: status)
         timestampLabel.isHidden = showPinned