Merge pull request #3 from googlefonts/glyph-fbs

schemas: add glyph.fbs and plist.fbs

schemas/plist.fbs

@@ -0,0 +1,61 @@
+// https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/PropertyLists/
+namespace FlatFont.Plist;
+
+union Type {
+  Integer,
+  Real,
+  String,
+  Boolean,
+  Data,
+  Date,
+  Dict,
+  Array,
+}
+
+// can't have vectors of unions in python or rust (only c++) so I define a table
+// that contains the union
+table Plist {
+ value: Type (required);
+}
+
+// can't use struct because 'only tables can be union elements' in python flatbuffers
+table Integer {
+  value: int;
+}
+
+table Real {
+  value: float;
+}
+
+table String {
+  value: string (required);
+}
+
+table Boolean {
+  value: bool;
+}
+
+table Data {
+  value: [ubyte] (required);
+}
+
+// xml plist date conforms to a subset of ISO 8601:
+// YYYY '-' MM '-' DD 'T' HH ':' MM ':' SS 'Z'
+table Date {
+  value: string (required);
+}
+
+table Dict {
+  value: [DictItem] (required);
+}
+
+table DictItem {
+  key: string (required, key);
+  value: Plist (required);
+}
+
+table Array {
+ values: [Plist] (required);
+}
+
+root_type Plist;

schemas/ufo/fontinfo.fbs

@@ -1,4 +1,6 @@
-//namespace FlatFont.Ufo;
+include "misc.fbs";  // for Guideline
+
+namespace FlatFont.Ufo;
 
 /// https://unifiedfontobject.org/versions/ufo3/fontinfo.plist/
 table FontInfo {
@@ -236,14 +238,4 @@ table WoffMetadataExtensionValue {
 }
 
 
-table Guideline {
-  x: float;
-  y: float;
-  angle: float;
-  name: string;
-  color: string;
-  identifier: string;
-}
-
-
 root_type FontInfo;

schemas/ufo/glyph.fbs

@@ -0,0 +1,60 @@
+include "misc.fbs";  // for Guideline and Transform
+include "../plist.fbs";
+
+namespace FlatFont.Ufo;
+
+/// https://unifiedfontobject.org/versions/ufo3/glyphs/glif/
+table Glyph {
+  name: string (required, key);
+  width: float;
+  height: float;
+  unicodes: [uint];
+  image: Image;
+  lib: Plist.Dict;
+  note: string;
+  anchors: [Anchor];
+  components: [Component];
+  contours: [Contour];
+  guidelines: [Guideline];
+}
+
+/// https://unifiedfontobject.org/versions/ufo3/glyphs/glif/#image
+table Image {
+  fileName: string;
+  transformation: Transform;
+  color: string;
+}
+
+/// https://unifiedfontobject.org/versions/ufo3/glyphs/glif/#anchor
+table Anchor {
+  x: float;
+  y: float;
+  name: string;
+  color: string;
+  identifier: string;
+}
+
+/// https://unifiedfontobject.org/versions/ufo3/glyphs/glif/#component
+table Component {
+  baseGlyph: string;
+  transformation: Transform;
+  identifier: string;
+}
+
+/// https://unifiedfontobject.org/versions/ufo3/glyphs/glif/#contour
+table Contour {
+  points: [Point];
+  identifier: string;
+}
+
+/// https://unifiedfontobject.org/versions/ufo3/glyphs/glif/#point
+table Point {
+  x: float;
+  y: float;
+  type: string;
+  smooth: bool;
+  name: string;
+  identifier: string;
+}
+
+root_type Glyph;

schemas/ufo/misc.fbs

@@ -0,0 +1,19 @@
+namespace FlatFont.Ufo;
+
+table Guideline {
+  x: float;
+  y: float;
+  angle: float;
+  name: string;
+  color: string;
+  identifier: string;
+}
+
+table Transform {
+  xScale: float = 1;
+  xyScale: float = 0;
+  yxScale: float = 0;
+  yScale: float = 1;
+  xOffset: float = 0;
+  yOffset: float = 0;
+}