# Miscellaneous Functions

*API Collection*

## Topics

### Data and Source Processing

- [`CompressZ`](/Core/GlyphsCore/CompressZ)
- [`DecompressZ`](/Core/GlyphsCore/DecompressZ)
- [`GSRemoveComments`](/Core/GlyphsCore/GSRemoveComments)

### Comparison and Inspection

- [`bothNilOrEqual`](/Core/GlyphsCore/bothNilOrEqual)
- [`compareKerning`](/Core/GlyphsCore/compareKerning)
- [`getIncludeExcludeGlyphListFilter`](/Core/GlyphsCore/getIncludeExcludeGlyphListFilter)
- [`inspectClassStopAt`](/Core/GlyphsCore/inspectClassStopAt)

## See Also

### Utilities

- [String and Value Conversion](/Core/GlyphsCore/String-and-Value-Conversion)
- [Curve Fitting and Offsetting](/Core/GlyphsCore/Curve-Fitting-and-Offsetting)
- [Geometry and Path Operations](/Core/GlyphsCore/Geometry-and-Path-Operations)
- [Validation and Format Utilities](/Core/GlyphsCore/Validation-and-Format-Utilities)