019f8fd211
git-subtree-dir: users/wpcarro git-subtree-mainline:464bbcb15cgit-subtree-split:24f5a642afChange-Id: I6105b3762b79126b3488359c95978cadb3efa789
111 lines
2.9 KiB
EmacsLisp
111 lines
2.9 KiB
EmacsLisp
;;; string.el --- Library for working with strings -*- lexical-binding: t -*-
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;; Author: William Carroll <wpcarro@gmail.com>
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;; Version: 0.0.1
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;; URL: https://git.wpcarro.dev/wpcarro/briefcase
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;; Package-Requires: ((emacs "24"))
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;;; Commentary:
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;; Library for working with string.
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;;; Code:
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Dependencies
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(require 's)
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(require 'dash)
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;; TODO: Resolve the circular dependency that this introduces.
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;; (require 'prelude)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Library
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defun string-contains? (c x)
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"Return t if X is in C."
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(s-contains? c x))
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(defun string-hookify (x)
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"Append \"-hook\" to X."
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(s-append "-hook" x))
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(defun string-split (y x)
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"Map string X into a list of strings that were separated by Y."
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(s-split y x))
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(defun string-ensure-hookified (x)
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"Ensure that X has \"-hook\" appended to it."
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(if (s-ends-with? "-hook" x)
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x
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(string-hookify x)))
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(defun string-format (x &rest args)
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"Format template string X with ARGS."
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(apply #'format (cons x args)))
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(defun string-concat (&rest strings)
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"Joins `STRINGS' into onto string."
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(apply #'s-concat strings))
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(defun string-->symbol (string)
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"Maps `STRING' to a symbol."
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(intern string))
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(defun string-<-symbol (symbol)
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"Maps `SYMBOL' into a string."
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(symbol-name symbol))
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(defun string-prepend (prefix x)
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"Prepend `PREFIX' onto `X'."
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(s-concat prefix x))
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(defun string-append (postfix x)
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"Appen `POSTFIX' onto `X'."
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(s-concat x postfix))
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(defun string-surround (s x)
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"Surrounds `X' one each side with `S'."
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(->> x
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(string-prepend s)
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(string-append s)))
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;; TODO: Define a macro for defining a function and a test.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Casing
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defun string-caps->kebab (x)
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"Change the casing of `X' from CAP_CASE to kebab-case."
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(->> x
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s-downcase
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(s-replace "_" "-")))
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(defun string-kebab->caps (x)
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"Change the casing of X from CAP_CASE to kebab-case."
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(->> x
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s-upcase
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(s-replace "-" "_")))
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(defun string-lower->caps (x)
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"Change the casing of X from lowercase to CAPS_CASE."
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(->> x
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s-upcase
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(s-replace " " "_")))
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(defun string-lower->kebab (x)
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"Change the casing of `X' from lowercase to kebab-case."
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(s-replace " " "-" x))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Predicates
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defun string-instance? (x)
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"Return t if X is a string."
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(stringp x))
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(provide 'string)
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;;; string.el ends here
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