Move macros around
This commit is contained in:
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@ -356,6 +356,117 @@ The packages in this section provide no functionality on their own, but provide
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(use-package parse-csv
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(use-package parse-csv
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:demand t)
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:demand t)
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#+END_SRC
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#+END_SRC
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** Macros
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*** Emacs Version Predicate
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:emacs-version-predicate (major-version minor-version)
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`(lambda ()
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(or (> emacs-major-version ,major-version)
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(and (>= emacs-major-version ,major-version)
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(>= emacs-minor-version ,minor-version)))))
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(defun imalison:check-emacs-version (major-version minor-version)
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(funcall (imalison:emacs-version-predicate major-version minor-version)))
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#+END_SRC
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*** Compose Functions
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**** Arbitrary arguments at every step
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#+BEGIN_SRC emacs-lisp
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(defun imalison:make-list (thing)
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(if (listp thing)
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thing
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(list thing)))
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(defmacro imalison:compose (&rest funcs)
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"Build a new function with NAME that is the composition of FUNCS."
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`(lambda (&rest args)
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(imalison:compose-helper ,funcs)))
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(defmacro imalison:compose-helper (funcs)
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"Builds funcalls of FUNCS applied to the arg."
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(if (equal (length funcs) 0)
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(quote args)
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`(apply ,(car funcs)
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(imalison:make-list (imalison:compose-helper ,(cdr funcs))))))
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#+END_SRC
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**** Simpler Unary version
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:compose-unary (&rest funcs)
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"Build a new function with NAME that is the composition of FUNCS."
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`(lambda (arg)
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(imalison:compose-helper-unary ,funcs)))
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(defmacro imalison:compose-helper-unary (funcs)
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"Builds funcalls of FUNCS applied to the arg."
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(if (equal (length funcs) 0)
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'arg
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`(funcall ,(car funcs) (imalison:compose-helper-unary ,(cdr funcs)))))
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#+END_SRC
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**** Most performant version supports macros
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:compose-named-functions (arguments &rest funcs)
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"Build a new function with NAME that is the composition of FUNCS."
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`(lambda ,arguments
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(imalison:compose-named-functions-helper ,funcs ,arguments)))
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(defmacro imalison:compose-named-functions-helper (funcs arguments)
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"Builds funcalls of FUNCS applied to the arg."
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(if (equal (length funcs) 1)
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`(,(car funcs) ,@arguments)
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`(,(car funcs)
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(imalison:compose-named-functions-helper ,(cdr funcs) ,arguments))))
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#+END_SRC
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*** Prefix Alternatives
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Prefix alternatives is a macro that builds a function that selects one of a collection of functions that are provided to the macro based on the value of the prefix argument.
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:prefix-alternatives (name &rest alternatives)
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`(defun ,name (arg)
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(interactive "p")
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(setq function
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(cond
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,@(progn
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(let ((last-power 1))
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(cl-loop for alternative in alternatives
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collect `((eq arg ,last-power) (quote ,alternative))
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do (setq last-power (* last-power 4)))))))
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(setq function (or function)) ; Set a default value for function
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(setq current-prefix-arg nil)
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(call-interactively function)))
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#+END_SRC
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*** Named Build
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imalison:named-build is a way to invoke a macro in such a way that the lambda that it produces is given a name.
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:named-build (name builder &rest args)
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`(defalias (quote ,name) (,builder ,@args)))
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(put 'imalison:named-build 'lisp-indent-function 1)
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(defmacro imalison:named-builder-builder (named-builder-name builder-name)
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`(defmacro ,named-builder-name (function-name &rest args)
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(cons ,builder-name args)))
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#+END_SRC
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*** Use Package Wrapper With Local Load Path Support
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#+BEGIN_SRC emacs-lisp
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(put 'imalison:use-package 'lisp-indent-function 1)
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(defmacro imalison:use-package* (package target-directory &rest forms)
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(let* ((target-exists (file-exists-p target-directory))
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(additional-forms
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(when target-exists
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(list
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:load-path target-directory
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:ensure nil))))
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`(use-package ,package
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,@additional-forms ,@forms)))
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(defmacro imalison:use-package (package &rest forms)
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(let ((target-directory
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(concat (file-name-as-directory (if (boundp 'imalison:projects-directory)
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imalison:projects-directory
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"~/Projects"))
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(symbol-name package))))
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`(imalison:use-package* ,package ,target-directory ,@forms)))
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#+END_SRC
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** Join paths together as with os.path.join in python
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** Join paths together as with os.path.join in python
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#+BEGIN_SRC emacs-lisp
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#+BEGIN_SRC emacs-lisp
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(defun imalison:join-paths (root &rest dirs)
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(defun imalison:join-paths (root &rest dirs)
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@ -371,7 +482,7 @@ The packages in this section provide no functionality on their own, but provide
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(defvar imalison:gpg-key)
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(defvar imalison:gpg-key)
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#+END_SRC
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#+END_SRC
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** Flatten imenu indexes
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** Flatten Imenu Indexes
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I like my imenu indexes flat so I don't have to press enter multiple times to find what I'm looking for. The functions that follow allow me to get this behavior out of functions that provide a nested imenu index.
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I like my imenu indexes flat so I don't have to press enter multiple times to find what I'm looking for. The functions that follow allow me to get this behavior out of functions that provide a nested imenu index.
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#+BEGIN_SRC emacs-lisp
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#+BEGIN_SRC emacs-lisp
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(defun imalison:imenu-prefix-flattened (index)
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(defun imalison:imenu-prefix-flattened (index)
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@ -403,16 +514,6 @@ By advising ~imenu--make-index-alist~ with ~imalison:flatten-imenu-index~ we mak
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(advice-add 'imenu--make-index-alist
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(advice-add 'imenu--make-index-alist
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:around 'imalison:flatten-imenu-index-with-function)
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:around 'imalison:flatten-imenu-index-with-function)
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#+END_SRC
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#+END_SRC
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** Emacs version predicate
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:emacs-version-predicate (major-version minor-version)
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`(lambda ()
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(or (> emacs-major-version ,major-version)
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(and (>= emacs-major-version ,major-version)
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(>= emacs-minor-version ,minor-version)))))
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(defun imalison:check-emacs-version (major-version minor-version)
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(funcall (imalison:emacs-version-predicate major-version minor-version)))
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#+END_SRC
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** Add files to org-agenda-files
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** Add files to org-agenda-files
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#+BEGIN_SRC emacs-lisp
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#+BEGIN_SRC emacs-lisp
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@ -423,87 +524,12 @@ By advising ~imenu--make-index-alist~ with ~imalison:flatten-imenu-index~ we mak
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when (and filepath (file-exists-p (file-truename filepath)))
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when (and filepath (file-exists-p (file-truename filepath)))
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collect (file-truename filepath)))))
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collect (file-truename filepath)))))
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#+END_SRC
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#+END_SRC
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** Named Build
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imalison:named-build is used to name a lambda produced by another macro applied to the given forms.
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:named-build (name builder &rest args)
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`(defalias (quote ,name) (,builder ,@args)))
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(put 'imalison:named-build 'lisp-indent-function 1)
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(defmacro imalison:named-builder-builder (named-builder-name builder-name)
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`(defmacro ,named-builder-name (function-name &rest args)
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(cons ,builder-name args)))
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#+END_SRC
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** Compose functions
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*** Arbitrary arguments at every step
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#+BEGIN_SRC emacs-lisp
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(defun imalison:make-list (thing)
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(if (listp thing)
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thing
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(list thing)))
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(defmacro imalison:compose (&rest funcs)
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"Build a new function with NAME that is the composition of FUNCS."
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`(lambda (&rest args)
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(imalison:compose-helper ,funcs)))
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(defmacro imalison:compose-helper (funcs)
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"Builds funcalls of FUNCS applied to the arg."
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(if (equal (length funcs) 0)
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(quote args)
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`(apply ,(car funcs)
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(imalison:make-list (imalison:compose-helper ,(cdr funcs))))))
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#+END_SRC
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*** Simpler Unary version
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:compose-unary (&rest funcs)
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"Build a new function with NAME that is the composition of FUNCS."
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`(lambda (arg)
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(imalison:compose-helper-unary ,funcs)))
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(defmacro imalison:compose-helper-unary (funcs)
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"Builds funcalls of FUNCS applied to the arg."
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(if (equal (length funcs) 0)
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'arg
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`(funcall ,(car funcs) (imalison:compose-helper-unary ,(cdr funcs)))))
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#+END_SRC
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*** Most performant version supports macros
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:compose-named-functions (arguments &rest funcs)
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"Build a new function with NAME that is the composition of FUNCS."
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`(lambda ,arguments
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(imalison:compose-named-functions-helper ,funcs ,arguments)))
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(defmacro imalison:compose-named-functions-helper (funcs arguments)
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"Builds funcalls of FUNCS applied to the arg."
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(if (equal (length funcs) 1)
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`(,(car funcs) ,@arguments)
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`(,(car funcs)
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(imalison:compose-named-functions-helper ,(cdr funcs) ,arguments))))
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#+END_SRC
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** prefix-alternatives
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Prefix alternatives is a macro that builds a function that selects one of a collection of functions that are provided to the macro based on the value of the prefix argument.
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:prefix-alternatives (name &rest alternatives)
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`(defun ,name (arg)
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(interactive "p")
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(setq function
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(cond
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,@(progn
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(let ((last-power 1))
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(cl-loop for alternative in alternatives
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collect `((eq arg ,last-power) (quote ,alternative))
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do (setq last-power (* last-power 4)))))))
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(setq function (or function)) ; Set a default value for function
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(setq current-prefix-arg nil)
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(call-interactively function)))
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#+END_SRC
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** Get file string
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** Get file string
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#+BEGIN_SRC emacs-lisp
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#+BEGIN_SRC emacs-lisp
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(defun imalison:get-string-from-file (filePath)
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(defun imalison:get-string-from-file (file-path)
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"Return filePath's file content."
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"Return file-path's file content."
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(with-temp-buffer
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(with-temp-buffer
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(insert-file-contents filePath)
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(insert-file-contents file-path)
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(buffer-string)))
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(buffer-string)))
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#+END_SRC
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#+END_SRC
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** Get current location
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** Get current location
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@ -690,30 +716,6 @@ This interactive functions allows the user the select a function to invoke using
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(defun imalison:message-function-result (function)
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(defun imalison:message-function-result (function)
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(interactive (find-function-read))
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(interactive (find-function-read))
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(message "%s" (funcall function)))
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(message "%s" (funcall function)))
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#+END_SRC
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** imalison:use-package
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#+BEGIN_SRC emacs-lisp
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(put 'imalison:use-package 'lisp-indent-function 1)
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(defmacro imalison:use-package* (package target-directory &rest forms)
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(let* ((target-exists (file-exists-p target-directory))
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(additional-forms
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(when target-exists
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(list
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:load-path target-directory
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:ensure nil))))
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`(use-package ,package
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,@additional-forms ,@forms)))
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(defmacro imalison:use-package (package &rest forms)
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(let ((target-directory
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(concat (file-name-as-directory (if (boundp 'imalison:projects-directory)
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imalison:projects-directory
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"~/Projects"))
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(symbol-name package))))
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`(imalison:use-package* ,package ,target-directory ,@forms)))
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#+END_SRC
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#+END_SRC
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** Make interactive
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** Make interactive
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#+BEGIN_SRC emacs-lisp
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#+BEGIN_SRC emacs-lisp
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@ -769,8 +771,8 @@ A macro for composing functions together to build an interactive command to copy
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(imalison:compose-copy-builder imalison:copy-current-git-branch
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(imalison:compose-copy-builder imalison:copy-current-git-branch
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'magit-get-current-branch)
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'magit-get-current-branch)
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#+END_SRC
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#+END_SRC
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** Compose around builder
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** Advice Add Around Builder
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For composing functions with an apply
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For composing functions with an apply so that they can be used with the ~:around~ keyword of advice-add
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#+BEGIN_SRC emacs-lisp
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#+BEGIN_SRC emacs-lisp
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(defmacro imalison:compose-around-builder (&rest functions)
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(defmacro imalison:compose-around-builder (&rest functions)
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`(imalison:compose ,@functions 'apply))
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`(imalison:compose ,@functions 'apply))
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