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apple-text-core-text

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Glyph-level control with Core Text

Software Engineering#typesetting#hit-testing#font-metrics#glyphs#ctframesetter#core-text#ctline
Authorsitapix
Version1.0.0
Installs0

System Documentation

What problem does it solve?

Provides direct access to Core Text APIs for glyph-level control when TextKit 2 lacks glyph APIs, enabling custom typesetting, font table inspection, per-glyph rendering, and robust hit-testing across Apple platforms.

Core Features & Use Cases

  • Access and inspect glyph metrics, positions, and bounds using CTLine, CTRun, and related APIs for fine-grained rendering.
  • Retrieve font metrics, OpenType features, and font tables via CTFont for custom typography pipelines.
  • Implement advanced layout and hit-testing with Core Text in scenarios where TextKit 2 APIs are insufficient.
  • Bridge font interoperability between UIFont/NSFont and CTFont on iOS/macOS.

Quick Start

Ask it to show how to compute per-glyph positions using CTLine and CTRun for an attributed string.

Dependency Matrix

Required Modules

None required

Components

Standard package

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: apple-text-core-text
Download link: https://github.com/sitapix/apple-text/archive/main.zip#apple-text-core-text

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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