Quick script: Fix ()[]{}

fix_parentheses.py

MacroTab.title = "Fix ()[]{}"
Glyphs.clearLog()
Glyphs.showMacroWindow()
font = Glyphs.font
print(font.familyName)
collectedLayers = []
threshold = 1.0
for m in font.masters:
	mid = m.id
	for bracket in ("paren", "bracket", "brace"):
		leftGlyph = font.glyphs[bracket+"left"]
		rightGlyph = font.glyphs[bracket+"right"]
		if leftGlyph is None or rightGlyph is None:
			print(f"❌ master ‘{m.name}’: {bracket}left and {bracket}right do not exist.")
			continue
		leftLayer = leftGlyph.layers[mid]
		rightLayer = rightGlyph.layers[mid]
		
		layerToFix = None
		if leftLayer.components and leftLayer.components[0].componentLayer == rightLayer:
			layerToFix = leftLayer
			factor = -1
		elif rightLayer.components and rightLayer.components[0].componentLayer == leftLayer:
			layerToFix = rightLayer
			factor = 1
		if layerToFix:
			componentToFix = layerToFix.components[0]
			componentToFix.alignment = 3
		
		leftOrigin = leftLayer.bounds.origin.y
		rightOrigin = rightLayer.bounds.origin.y
		leftTop = leftOrigin + leftLayer.bounds.size.height
		rightTop = rightOrigin + rightLayer.bounds.size.height
		originDiff = leftOrigin-rightOrigin
		if abs(originDiff)>=threshold:
			if layerToFix is None:
				print(f"⚠️ {m.name}: could NOT fix {bracket}left and {bracket}right, {originDiff:.1f} off.")
				collectedLayers.extend([leftLayer, rightLayer])
			else:
				componentToFix.y += factor * originDiff
				print(f"👍🏻 {m.name}: fixed {bracket}left and {bracket}right")

if not collectedLayers:
	Message(
		"All pairs of ()[]{} on the same height. Details in Macro Window",
		title='🥳 Congrats',
		OKButton="Yippie",
		)
else:
	font.newTab(collectedLayers)
	print(f"🚨 Could not fix {int(len(collectedLayers)/2)} pairs. Opened in a new tab.")

print("✅ Done.")

Glyphs 3.x script for the Macro window.