Editing Text file (section)

=== Apple Macintosh text files ===

Prior to the advent of [[macOS]], the [[classic Mac OS]] system regarded the content of a file (the data fork) to be a text file when its [[resource fork]] indicated that the type of the file was "TEXT".<ref name="mac-uti">{{cite web |url=https://developer.apple.com/library/prerelease/content/documentation/Miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html |title=System-Declared Uniform Type Identifiers |work=Guides and Sample Code |publisher=[[Apple Inc.]] |date=2009-11-17 |access-date=2016-09-12}}</ref> Lines of classic Mac OS text files are terminated with CR characters.<ref name="mac-line-endings">{{cite web |url=https://developer.apple.com/library/mac/documentation/OpenSource/Conceptual/ShellScripting/PortingScriptstoMacOSX/PortingScriptstoMacOSX.html |title=Designing Scripts for Cross-Platform Deployment |work=Mac Developer Library |publisher=[[Apple Inc.]] |date=2014-03-10 |access-date=2016-09-12}}</ref>

Being a Unix-like system, macOS uses Unix format for text files.<ref name="mac-line-endings"/> [[Uniform Type Identifier]] (UTI) used for text files in macOS is "public.plain-text"; additional, more specific UTIs are: "public.utf8-plain-text" for utf-8-encoded text, "public.utf16-external-plain-text" and "public.utf16-plain-text" for utf-16-encoded text and "com.apple.traditional-mac-plain-text" for classic Mac OS text files.<ref name="mac-uti" />