From 4ba5284868df9c1bd3af86d83d171ad381427b91 Mon Sep 17 00:00:00 2001
From: be5invis <belleve@typeof.net>
Date: Thu, 2 Sep 2021 20:50:16 -0700
Subject: [PATCH] =?UTF-8?q?Add=20tailless=20variants=20for=20Greek=20small?=
 =?UTF-8?q?=20Mu=20(`=CE=BC`)=20(#1211).?=
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---
 changes/{10.1.2.md => 10.2.0.md}          |  3 ++-
 font-src/glyphs/letter/greek/lower-mu.ptl | 27 ++++++++++++++---------
 params/variants.toml                      | 21 +++++++++++++++++-
 snapshot-src/index.js                     |  2 +-
 4 files changed, 40 insertions(+), 13 deletions(-)
 rename changes/{10.1.2.md => 10.2.0.md} (68%)

diff --git a/changes/10.1.2.md b/changes/10.2.0.md
similarity index 68%
rename from changes/10.1.2.md
rename to changes/10.2.0.md
index 9f6d4159c..ff7641182 100644
--- a/changes/10.1.2.md
+++ b/changes/10.2.0.md
@@ -1,2 +1,3 @@
  * Refine the size and placements of diacritics, to avoid stacking marks to collide (#1204).
- * Refine the alignment of Number Sign (`#`) to align with numbers (#1210).
\ No newline at end of file
+ * Refine the alignment of Number Sign (`#`) to align with numbers (#1210).
+ * Add tailless variants for Greek small Mu (`μ`) (#1211).
\ No newline at end of file
diff --git a/font-src/glyphs/letter/greek/lower-mu.ptl b/font-src/glyphs/letter/greek/lower-mu.ptl
index 4e7ea3ab5..f816b7b18 100644
--- a/font-src/glyphs/letter/greek/lower-mu.ptl
+++ b/font-src/glyphs/letter/greek/lower-mu.ptl
@@ -10,14 +10,21 @@ glyph-block Letter-Greek-Lower-Mu : begin
 	glyph-block-import Common-Derivatives
 	glyph-block-import Letter-Latin-U
 
-	create-glyph 'grek/mu' 0x3BC : glyph-proc
-		include : MarkSet.p
-		include : refer-glyph 'u.seriflessTailed'
-		include : dispiro
-			widths.rhs
-			flat SB Descender [heading Upward]
-			curl SB (Descender / 2) [heading Upward]
-			straight.up.end SB SmallSmoothB [widths.heading 0 [AdviceStroke 4] Upward]
-		if SLAB : begin
-			include : LeftwardTopSerif SB XH SideJut
+	define SmallMuConfig : object
+		tailless { 'u.toothed'         }
+		tailed   { 'u.seriflessTailed' }
+
+	foreach { suffix { uPartName } } [Object.entries SmallMuConfig] : do
+		create-glyph "grek/mu.\(suffix)" : glyph-proc
+			include : MarkSet.p
+			include : refer-glyph uPartName
+			include : dispiro
+				widths.rhs
+				flat SB Descender [heading Upward]
+				curl	 SB (Descender / 2) [heading Upward]
+				straight.up.end SB SmallSmoothB [widths.heading 0 [AdviceStroke 4] Upward]
+			if SLAB : begin
+				include : LeftwardTopSerif SB XH SideJut
+
+	select-variant 'grek/mu' 0x3BC
 	alias 'micro' 0xB5 'grek/mu'
diff --git a/params/variants.toml b/params/variants.toml
index 68a4bd7d6..f248134b0 100644
--- a/params/variants.toml
+++ b/params/variants.toml
@@ -4694,6 +4694,23 @@ selector."grek/lambda" = "curlyTurn"
 
 
 
+[prime.lower-mu]
+sampler = "μ"
+samplerExplain = "Greek small Mu"
+tag = "VXAC"
+
+[prime.lower-mu.variants.tailless]
+rank = 1
+description = "Tailless Greek small Mu (`μ`)"
+selector."grek/mu" = "tailless"
+
+[prime.lower-mu.variants.tailed]
+rank = 2
+description = "Tailed Greek small Mu (`μ`)"
+selector."grek/mu" = "tailed"
+
+
+
 [prime.lower-xi]
 sampler = "ξ"
 samplerExplain = "Greek lower Xi"
@@ -6296,10 +6313,11 @@ turn-v = "straight"
 latn-phi = "serifless"
 lower-alpha = "crossing"
 lower-delta = "rounded"
-lower-xi = "flat-top"
 capital-gamma = "serifless"
+lower-mu = "tailed"
 lower-iota = "serifed-flat-tailed"
 lower-lambda = "straight"
+lower-xi = "flat-top"
 cyrl-capital-ze = "serifless"
 cyrl-ze = "serifless"
 cyrl-capital-ka = "symmetric-connected-serifless"
@@ -6708,6 +6726,7 @@ y = "straight-turn"
 eszet = "longs-s-lig"
 lower-iota = "tailed-serifed"
 lower-lambda = "straight-turn"
+lower-mu = "tailless"
 cyrl-capital-ka = "symmetric-connected-serifless"
 cyrl-ka = "symmetric-connected-serifless"
 cyrl-capital-u = "straight-turn"
diff --git a/snapshot-src/index.js b/snapshot-src/index.js
index 9c863f0fb..538566529 100644
--- a/snapshot-src/index.js
+++ b/snapshot-src/index.js
@@ -29,7 +29,7 @@ const captureCallbacks = {
 
 const ssStrings = [
 	["ABC.DEF.GHI.JKL.MNO.PQRS.TUV.WXYZ", "abc.def.ghi.jkl.mno.pqrs.tuv.wxyz"],
-	["¢ ſ ß ΓΛΔ αδιλξ КУЗЯ эльф язычник", "float il1[]={1-2/3.4,5+6=7/8%90};"],
+	["¢ ſß ΓΛΔ αδιλμξ КУЗЯ эльф язычник", "float il1[]={1-2/3.4,5+6=7/8%90};"],
 	["1234567890 ,._-+= >< ¯-¬_ >~–÷+×<", "{}[]()<>`+-=$*/#_%^@\\&|~?'\" !,.;:"],
 	["!iIlL17|¦ coO08BbDQ $5SZ2zsz 96G&", [..."dbqp E3 g9q CGQ vvw VVW /V ", "<=", " ", ">="]]
 ];