Update & revise set-formatter! docstring

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Henrik Lissner 2018-08-29 15:56:59 +02:00
parent 4b9233bec7
commit 6e03ddacda
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@ -1,10 +1,24 @@
;;; editor/format/autoload/settings.el -*- lexical-binding: t; -*-
(defconst +format-system-type
(cl-case system-type
(windows-nt 'windows)
(cygwin 'windows)
(darwin 'macos)
(gnu/linux 'linux)
(berkeley-unix
(save-match-data
(let ((case-fold-search t))
(cond ((string-match "freebsd" system-configuration) 'freebsd)
((string-match "openbsd" system-configuration) 'openbsd)
((string-match "netbsd" system-configuration) 'netbsd))))))
"Current operating system according to the format-all package.")
(defun +format--resolve-system (choices)
"Get first choice matching `format-all-system-type' from CHOICES."
(cl-loop for choice in choices
if (atom choice) return choice
else if (eql format-all-system-type (car choice))
else if (eql +format-system-type (car choice))
return (cadr choice)))
;;;###autodef
@ -16,30 +30,43 @@
error-regexp)
"Define a FORMATTER for MODES.
MODES can be a major mode symbol, a vector of major modes, or a vector of
two-element vectors made up of [MAJOR-MODE FORM]. FORM is evaluated when the
buffer is formatted and its return value is a predicate for this formatter. Its
return value is stored in If it is non-nil, this formatter is used. Its return
value is stored in the `mode-result' variable for FORMATTER (if it's not a
string).
MODES can be a major mode symbol, a list of major modes, or a list of
two-element lists made up of (MAJOR-MODE FORM). FORM is evaluated when the
buffer is formatted and its return value serves two roles:
FORMATTER can be a function, string or nested vector.
1. It is a predicate for this formatter. If it returns non-nil (and MAJOR-MODE
matches the current mode), that formatter is used.
2. Its return value is stored in the `mode-result' variable for FORMATTER (if
it's a function).
FORMATTER can be a function, string or nested list.
If a function, it should be a formatter function that
`format-all-buffer-thunk' will accept.
If a string, it is assumed to be a shell command that the text will be piped
to (stdin).
If a vector, it should represent a shell command as a list of arguments. Each
element is either a string or vector [STRING ARG] where STRING is a format
If a string, it is assumed to be a shell command that the buffer's text will
be piped to (through stdin).
If a list, it should represent a shell command as a list of arguments. Each
element is either a string or list (STRING ARG) where STRING is a format
string and ARG is both a predicate and argument for STRING. If ARG is nil,
STRING will be omitted from the vector.
NAME is the identifier for this formatter. If FORMATTER is a lambda, NAME will
default to \"default\".
NAME is the identifier for this formatter. If FORMATTER is a lambda, NAME is
required.
INSTALL should be a string representing the shell command necessary to install
this formatter's dependencies. INSTALL can also be a list of lists made up of
two items: (OS COMMAND).
INSTALL is a string representing the shell command to install this formatter's
dependencies. INSTALL can also be a list of lists made up of two items: (OS
COMMAND). OS can be windows, macos, linux, freebsd, openbsd or netbsd.
FILTER is a function that takes three arguments: the formatted output, any error
output and the position of the first change, and must return these three after
making whatever changes you like to them. This might be useful if the output
contains ANSI color codes that need to be stripped out (as is the case with
elm-format).
OK-STATUSES is a list of integer exit codes that should be treated as success
codes. However, if ERROR-REGEXP is given, and the program's stderr contains that
regexp, then the formatting is considered failed even if the exit status is in
OK-STATUSES.
Basic examples: