Fixed crash when sublist is nil.

2023-02-27 08:28:57 -05:00
parent 46485d8790
commit d05123066c
1 changed files with 10 additions and 9 deletions
--- a/Sources/SwiftMath/MathRender/MTMathListBuilder.swift
+++ b/Sources/SwiftMath/MathRender/MTMathListBuilder.swift
@@ -260,7 +260,7 @@ public struct MTMathListBuilder {
                    spacesAllowed = command == "text"
                    let oldFontStyle = currentFontStyle
                    currentFontStyle = fontStyle
-                    let sublist = self.buildInternal(true)!
+                    if let sublist = self.buildInternal(true) {
                        // Restore the font style.
                        currentFontStyle = oldFontStyle
                        spacesAllowed = oldSpacesAllowed
@@ -270,6 +270,7 @@ public struct MTMathListBuilder {
                        if oneCharOnly {
                            return list
                        }
+                    }
                    continue
                }
                atom = self.atomForCommand(command)