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GNU Emacs Lisp Reference Manual

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4. Strings and Characters

A string in Emacs Lisp is an array that contains an ordered sequence of characters. Strings are used as names of symbols, buffers, and files; to send messages to users; to hold text being copied between buffers; and for many other purposes. Because strings are so important, Emacs Lisp has many functions expressly for manipulating them. Emacs Lisp programs use strings more often than individual characters.

See section 21.6.14 Putting Keyboard Events in Strings, for special considerations for strings of keyboard character events.

4.1 String and Character Basics  Basic properties of strings and characters.
4.2 The Predicates for Strings  Testing whether an object is a string or char.
4.3 Creating Strings  Functions to allocate new strings.
4.4 Modifying Strings  Altering the contents of an existing string.
4.5 Comparison of Characters and Strings  Comparing characters or strings.
4.6 Conversion of Characters and Strings  Converting to and from characters and strings.
4.7 Formatting Strings  format: Emacs's analogue of printf.
4.8 Case Conversion in Lisp  Case conversion functions.
4.9 The Case Table  Customizing case conversion.


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