PaperForge.Fonts.TrueType.Subsetter (PaperForge v0.5.0)

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Builds physical TrueType subsetting plans.

This module does not yet rewrite the final .ttf program. It provides the deterministic planning pieces needed for that step: binary hashes, composite glyph dependency expansion, table selection, and TrueType checksum calculation.

Summary

Types

plan()

Functions

binary_hash(data)
checksum(data)
checksums(tables)
plan(font, glyph_ids)

Types

plan()

@type plan() :: %{
  binary_hash: binary(),
  requested_glyphs: [non_neg_integer()],
  glyphs: [non_neg_integer()],
  composite_dependencies: [non_neg_integer()],
  rebuild_tables: [binary()],
  checksums: %{optional(binary()) => non_neg_integer()}
}

Functions

binary_hash(data)

@spec binary_hash(binary()) :: binary()

checksum(data)

@spec checksum(binary()) :: non_neg_integer()

checksums(tables)

@spec checksums(%{optional(binary()) => binary()}) :: %{
  optional(binary()) => non_neg_integer()
}

plan(font, glyph_ids)

@spec plan(PaperForge.Fonts.TrueType.t(), Enumerable.t()) :: plan()