testcases

Documentation

Index

• Variables
• type FontGen
  • func NewFontGen() (*FontGen, error)
  • func (g *FontGen) GsubTestFont(idx int) (*sfnt.Font, error)
• type GsubTestCase

Variables

var Gsub = []*GsubTestCase{} // END OF TEST CASES

/* 117 elements not displayed */

Gsub lists test cases for the GSUB table.

My overall aim is to replicate the behaviour of ligatures in MS Word, but so far I have failed to reverse engineer the complete set of rules for this. For comparison, I have also included the behaviour of harfbuzz and of the MacOS layout engine.

Types

type FontGen

type FontGen struct {
	CMap cmap.Subtable
	Rev  map[glyph.ID]rune
	// contains filtered or unexported fields
}

func NewFontGen

func NewFontGen() (*FontGen, error)

func (*FontGen) GsubTestFont

func (g *FontGen) GsubTestFont(idx int) (*sfnt.Font, error)

type GsubTestCase

type GsubTestCase struct {
	// Name is a human-readable label for the test.
	Name string

	// Desc is a textual description of a GSUB lookup.
	// This uses the syntax of seehuhn.de/go/sfnt/opentype/gtab/builder .
	Desc string

	// In is the input string for the GSUB lookup.
	In string

	// Out is the expected output string for the GSUB lookup.
	Out string

	// Text is the expected output text content for the GSUB lookup.  This is
	// only used in cases where ignored glyphs have to be moved after the
	// glyphs involved in a lookup, thus changing the order of text.
	// If this is empty, the expected text content is the same as In.
	Text string
}

GsubTestCase is a test case for the GSUB lookups.