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Fix boundary handling in Parser and update tests for empty cases

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wesleyel
2026-04-07 10:04:11 +08:00
parent 3d7db623dc
commit 2a6cb0cb4c
2 changed files with 26 additions and 6 deletions
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12
Sources/SwiftUIMath/Internal/Syntax/Parser.swift
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@@ -764,6 +764,12 @@ extension Math {
// reinstate the old inner atom.
let newInner = currentInnerAtom
currentInnerAtom = oldInner
if newInner?.leftBoundary?.nucleus.isEmpty == true {
newInner?.leftBoundary = nil
}
if newInner?.rightBoundary?.nucleus.isEmpty == true {
newInner?.rightBoundary = nil
}
return newInner
} else if command == "overline" {
// The overline command has 1 arguments
@@ -1162,6 +1168,12 @@ extension Math {
}
let newInner = self.currentInnerAtom
currentInnerAtom = oldInner
if newInner?.leftBoundary?.nucleus.isEmpty == true {
newInner?.leftBoundary = nil
}
if newInner?.rightBoundary?.nucleus.isEmpty == true {
newInner?.rightBoundary = nil
}
return newInner
} else if command == "overline" {
let over = Overline()