Class: Ucode::Audit::Emitter::GlyphEmitter

Inherits:
Object
  • Object
show all
Includes:
Repo::AtomicWrites
Defined in:
lib/ucode/audit/emitter/glyph_emitter.rb

Overview

Writes <face_dir>/glyphs/U+XXXX.svg — the SVG outline of one audited glyph, emitted only in --with-glyphs mode.

Glyph production is delegated to a caller-injected glyph_resolver proc. The proc takes a codepoint Integer and returns either an SVG string (write it) or nil (skip — no glyph available). ucode 0.2 ships with a default proc that always returns nil; the canonical 4-tier resolver (TODO 20) replaces it with the real fontist/fontisan + Last-Resort pipeline.

Lazy by design: the resolver is invoked once per codepoint, and only for codepoints the caller actually iterates. No upfront font-load cost.

Constant Summary collapse

DEFAULT_RESOLVER = 
proc { |_codepoint| }

Instance Method Summary collapse

Methods included from Repo::AtomicWrites

#same_content?, #to_pretty_json, #write_atomic

Constructor Details

#initialize(glyph_resolver: DEFAULT_RESOLVER) ⇒ GlyphEmitter

Returns a new instance of GlyphEmitter.

Parameters:

  • glyph_resolver (Proc(Integer) -) (defaults to: DEFAULT_RESOLVER) —

    String, nil] SVG source



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# File 'lib/ucode/audit/emitter/glyph_emitter.rb', line 30

def initialize(glyph_resolver: DEFAULT_RESOLVER)
  @glyph_resolver = glyph_resolver
end

Instance Method Details

#emit(face_dir, codepoint) ⇒ Boolean

Returns true if written, false if skipped (no glyph available, or content-identical to existing file).

Parameters:

  • face_dir (String, Pathname)
  • codepoint (Integer)

Returns:

  • (Boolean) —

    true if written, false if skipped (no glyph available, or content-identical to existing file)



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# File 'lib/ucode/audit/emitter/glyph_emitter.rb', line 38

def emit(face_dir, codepoint)
  svg = @glyph_resolver.call(codepoint)
  return false if svg.nil?

  path = Paths.glyph_under(face_dir, format("U+%04X", codepoint))
  write_atomic(path, svg)
end