Hizalanmış anahtar kelimeler nasıl girintili hale getirilir?

Muhtemelen Clojure'dan etkilenen, daha çok veri yapıları olarak özellik listelerini kullanıyorum. Emacs çoğu zaman bu şekilde girintiler,

`(:token ,token
         :token-quality ,quality)  , 

tercih ettiğim bu olsa da

`(:token ,token
  :token-quality ,quality) . 

Acaba, birisi bunu zaten çözmüş mü?

Bu, lisp-indent-functionemacs-lisp modunu değiştirerek elde edilebilir :

(add-hook 'emacs-lisp-mode-hook
          (lambda () (setq-local lisp-indent-function #'common-lisp-indent-function)))

Gönderen lisp-mode.elemacs kaynakta,

 (defcustom lisp-indent-function 'lisp-indent-function
  "A function to be called by `calculate-lisp-indent'.
It indents the arguments of a Lisp function call.  This function
should accept two arguments: the indent-point, and the
`parse-partial-sexp' state at that position.  One option for this
function is `common-lisp-indent-function'."
  :type 'function
  :group 'lisp)

Alternatif

@ Wasamasa'nın soruya yaptığı bir yorumda belirtildiği gibi , @ Fuco1 (github.com'da), anahtar kelimelerin girintisini düzeltmek için varsayılanı değiştirdilisp-indent-function (ile başlayan :).

Emacs değişkene lisp-indent-functionlisp modlarında girinti için hangi işlevi kullanacağını seçmesi için değişken sağladı .

Orijinal işlev tanımını geçersiz kılmak yerine, kendi işlevimizi oluşturabilir ve yukarıdaki değişkeni bu işlev adına atayabiliriz.

Bu örnekte,

• Kaydet Fuco1 işlevini modded gibi bir şey olarak Fuco1/lisp-indent-functionsizin emacs kurulumunda
• Girintilemek için bu işlevi kullanın emacs-lisp-mode:

(add-hook 'emacs-lisp-mode-hook
          (lambda () (setq-local lisp-indent-function #'Fuco1/lisp-indent-function)))

Referans

Değiştirilen işlev, github'a başvuruda bulunulan kaynağın kaybolması durumunda aşağıya yapıştırılır.

;; https://github.com/Fuco1/.emacs.d/blob/af82072196564fa57726bdbabf97f1d35c43b7f7/site-lisp/redef.el#L20-L94
(defun Fuco1/lisp-indent-function (indent-point state)
  "This function is the normal value of the variable `lisp-indent-function'.
The function `calculate-lisp-indent' calls this to determine
if the arguments of a Lisp function call should be indented specially.

INDENT-POINT is the position at which the line being indented begins.
Point is located at the point to indent under (for default indentation);
STATE is the `parse-partial-sexp' state for that position.

If the current line is in a call to a Lisp function that has a non-nil
property `lisp-indent-function' (or the deprecated `lisp-indent-hook'),
it specifies how to indent.  The property value can be:

* `defun', meaning indent `defun'-style
  \(this is also the case if there is no property and the function
  has a name that begins with \"def\", and three or more arguments);

* an integer N, meaning indent the first N arguments specially
  (like ordinary function arguments), and then indent any further
  arguments like a body;

* a function to call that returns the indentation (or nil).
  `lisp-indent-function' calls this function with the same two arguments
  that it itself received.

This function returns either the indentation to use, or nil if the
Lisp function does not specify a special indentation."
  (let ((normal-indent (current-column))
        (orig-point (point)))
    (goto-char (1+ (elt state 1)))
    (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t)
    (cond
     ;; car of form doesn't seem to be a symbol, or is a keyword
     ((and (elt state 2)
           (or (not (looking-at "\\sw\\|\\s_"))
               (looking-at ":")))
      (if (not (> (save-excursion (forward-line 1) (point))
                  calculate-lisp-indent-last-sexp))
          (progn (goto-char calculate-lisp-indent-last-sexp)
                 (beginning-of-line)
                 (parse-partial-sexp (point)
                                     calculate-lisp-indent-last-sexp 0 t)))
      ;; Indent under the list or under the first sexp on the same
      ;; line as calculate-lisp-indent-last-sexp.  Note that first
      ;; thing on that line has to be complete sexp since we are
      ;; inside the innermost containing sexp.
      (backward-prefix-chars)
      (current-column))
     ((and (save-excursion
             (goto-char indent-point)
             (skip-syntax-forward " ")
             (not (looking-at ":")))
           (save-excursion
             (goto-char orig-point)
             (looking-at ":")))
      (save-excursion
        (goto-char (+ 2 (elt state 1)))
        (current-column)))
     (t
      (let ((function (buffer-substring (point)
                                        (progn (forward-sexp 1) (point))))
            method)
        (setq method (or (function-get (intern-soft function)
                                       'lisp-indent-function)
                         (get (intern-soft function) 'lisp-indent-hook)))
        (cond ((or (eq method 'defun)
                   (and (null method)
                        (> (length function) 3)
                        (string-match "\\`def" function)))
               (lisp-indent-defform state indent-point))
              ((integerp method)
               (lisp-indent-specform method state
                                     indent-point normal-indent))
              (method
               (funcall method indent-point state))))))))

Hesaplamak-lisp-girinti

Daha iyi bir çözüm işlevi geçersiz kılmaktır calculate-lisp-indent. Kısaca, calculate-lisp-indentnoktadaki bir satırın girintili olması gereken sütunu döndüren bir işlevdir. Bu fonksiyon, lisp-indent-functionher satırın ne kadar girintili olması gerektiğini bildiren şeydir . ( daha fazla bilgi için reddit'teki yayınıma da bakınız ).

Diğer Yanıtlarla Karşılaştırma

Bu cevap üzerine Fuco1 değiştirilmiş işlevini kullanarak ettiğini avantajı (1) sorunun kökünü düzeltir olduğu yalanları calculate-lisp-indentyerine döndürdüğü yanlış girinti sonra temizlemekten calculate-lisp-indent(2) bu alıntı ve backquoted listelere genelleştirildiğinde (ve bunu açık bir şekilde mi yoksa 've `` ile mi alıntılandıklarını / geri alıntılandıklarını gösterir . Ayrıca keyfi olarak iç içe tırnak ve backquotes ile çalışır.

Bu cevap üzerine yerine gelmiştir avantajı lisp-indent-functionile common-lisp-indent-functionişlevin diğer elisp girinti karışıklık yan etkisi yoktur olduğunu. Elisp ve ortak lisp farklı girintili.

Nasıl çalışır

Bu koşullu (in calculate-lisp-indent), bir sexp'in bir işlev gibi girintili olup olmadığına karar veren şeydir. Onun başka maddesine düşen şey bir işlev gibi girintilidir. Eğer maddeye düşerse, normal olarak girintilidir (geçerli öğenin altında). Alıntılanan listeleri işlevler yerine veri olarak girintili yapmak için, listenin koşullu yüklemde alıntılandığı durumlar için daha fazla kontrol eklememiz gerekir.

(if (= (point) calculate-lisp-indent-last-sexp)
    ;; Containing sexp has nothing before this line
    ;; except the first element.  Indent under that element.
    nil
  ;; Skip the first element, find start of second (the first
  ;; argument of the function call) and indent under.
  (progn (forward-sexp 1)
         (parse-partial-sexp (point)
                             calculate-lisp-indent-last-sexp
                             0 t)))

Bu kod, girintilenen sexp'nin açık parantezlerini kontrol eder. Birden fazla sexp ile sexp ise hepsini kontrol eder. Alıntılanmış veya geri alıntılanmış herhangi bir sexps bulursa t döndürür.

(let* ((positions (elt state 9))
       (last (car (last positions)))
       (rest (nreverse (butlast positions)))
       (any-quoted-p nil)
       (point nil))
  (or
   (when-let (char last)
     (or (char-equal char ?')
         (char-equal char ?`)))
   (while (and rest (not any-quoted-p))
     (setq point (pop rest))
     (setq any-quoted-p
           (or
            (when-let (char point)
              (or (char-equal char ?')
                  (char-equal char ?`)))
            (save-excursion
              (goto-char (1+ point))
              (looking-at-p "\\(?:back\\)?quote[\t\n\f\s]+(")))))))

Bonus

Bir anahtar kelimeyle başlayan herhangi bir listenin, tırnak işaretli olmasa bile veri olarak girintili olmasını istiyorsanız, bunu koşullu yükleme başka bir kontrol olarak ekleyin. Bu, plisterin defhidra gibi kolaylık sağlamak için alıntılanmadığı makrolar için yararlı olabilir .

(when-let (char-after (char-after (1+ containing-sexp)))
  (char-equal char-after ?:))

Örnekler

Aşağıda gönderdiğim tam kod snippet'i, bahsettiğiniz vaka ve daha fazlası ile çalışır. Lütfen deneyin!

;; Your example
`(:token ,token
  :token-quality ,quality)

;; Other cool examples
(quote (hi im gosu
        the best vayne player))

'(i am the phantom of
  the opera)

'((angel of music
   hide no longer))

(backquote (past the point
            no return
            ... the final chapter))

`(fee fi fo
  fum)

;; should indent it like a function.
(iamafunction arg1
              arg2
              arg3)

Bunun nasıl çalıştığına dair daha ayrıntılı bir açıklama için reddit'teki yayınıma bakın .

Tam Kod Pasajı

İşte tam kod snippet'i.

(advice-add #'calculate-lisp-indent :override #'void~calculate-lisp-indent)

(defun void~calculate-lisp-indent (&optional parse-start)
  "Add better indentation for quoted and backquoted lists."
  ;; This line because `calculate-lisp-indent-last-sexp` was defined with `defvar` 
  ;; with it's value ommited, marking it special and only defining it locally. So  
  ;; if you don't have this, you'll get a void variable error.
  (defvar calculate-lisp-indent-last-sexp)
  (save-excursion
    (beginning-of-line)
    (let ((indent-point (point))
          state
          ;; setting this to a number inhibits calling hook
          (desired-indent nil)
          (retry t)
          calculate-lisp-indent-last-sexp containing-sexp)
      (cond ((or (markerp parse-start) (integerp parse-start))
             (goto-char parse-start))
            ((null parse-start) (beginning-of-defun))
            (t (setq state parse-start)))
      (unless state
        ;; Find outermost containing sexp
        (while (< (point) indent-point)
          (setq state (parse-partial-sexp (point) indent-point 0))))
      ;; Find innermost containing sexp
      (while (and retry
                  state
                  (> (elt state 0) 0))
        (setq retry nil)
        (setq calculate-lisp-indent-last-sexp (elt state 2))
        (setq containing-sexp (elt state 1))
        ;; Position following last unclosed open.
        (goto-char (1+ containing-sexp))
        ;; Is there a complete sexp since then?
        (if (and calculate-lisp-indent-last-sexp
                 (> calculate-lisp-indent-last-sexp (point)))
            ;; Yes, but is there a containing sexp after that?
            (let ((peek (parse-partial-sexp calculate-lisp-indent-last-sexp
                                            indent-point 0)))
              (if (setq retry (car (cdr peek))) (setq state peek)))))
      (if retry
          nil
        ;; Innermost containing sexp found
        (goto-char (1+ containing-sexp))
        (if (not calculate-lisp-indent-last-sexp)
            ;; indent-point immediately follows open paren.
            ;; Don't call hook.
            (setq desired-indent (current-column))
          ;; Find the start of first element of containing sexp.
          (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t)
          (cond ((looking-at "\\s(")
                 ;; First element of containing sexp is a list.
                 ;; Indent under that list.
                 )
                ((> (save-excursion (forward-line 1) (point))
                    calculate-lisp-indent-last-sexp)
                 ;; This is the first line to start within the containing sexp.
                 ;; It's almost certainly a function call.
                 (if (or
                      ;; Containing sexp has nothing before this line
                      ;; except the first element. Indent under that element.
                      (= (point) calculate-lisp-indent-last-sexp)

                      ;; First sexp after `containing-sexp' is a keyword. This
                      ;; condition is more debatable. It's so that I can have
                      ;; unquoted plists in macros. It assumes that you won't
                      ;; make a function whose name is a keyword.
                      ;; (when-let (char-after (char-after (1+ containing-sexp)))
                      ;;   (char-equal char-after ?:))

                      ;; Check for quotes or backquotes around.
                      (let* ((positions (elt state 9))
                             (last (car (last positions)))
                             (rest (reverse (butlast positions)))
                             (any-quoted-p nil)
                             (point nil))
                        (or
                         (when-let (char (char-before last))
                           (or (char-equal char ?')
                               (char-equal char ?`)))
                         (progn
                           (while (and rest (not any-quoted-p))
                             (setq point (pop rest))
                             (setq any-quoted-p
                                   (or
                                    (when-let (char (char-before point))
                                      (or (char-equal char ?')
                                          (char-equal char ?`)))
                                    (save-excursion
                                      (goto-char (1+ point))
                                      (looking-at-p
                                       "\\(?:back\\)?quote[\t\n\f\s]+(")))))
                           any-quoted-p))))
                     ;; Containing sexp has nothing before this line
                     ;; except the first element.  Indent under that element.
                     nil
                   ;; Skip the first element, find start of second (the first
                   ;; argument of the function call) and indent under.
                   (progn (forward-sexp 1)
                          (parse-partial-sexp (point)
                                              calculate-lisp-indent-last-sexp
                                              0 t)))
                 (backward-prefix-chars))
                (t
                 ;; Indent beneath first sexp on same line as
                 ;; `calculate-lisp-indent-last-sexp'.  Again, it's
                 ;; almost certainly a function call.
                 (goto-char calculate-lisp-indent-last-sexp)
                 (beginning-of-line)
                 (parse-partial-sexp (point) calculate-lisp-indent-last-sexp
                                     0 t)
                 (backward-prefix-chars)))))
      ;; Point is at the point to indent under unless we are inside a string.
      ;; Call indentation hook except when overridden by lisp-indent-offset
      ;; or if the desired indentation has already been computed.
      (let ((normal-indent (current-column)))
        (cond ((elt state 3)
               ;; Inside a string, don't change indentation.
               nil)
              ((and (integerp lisp-indent-offset) containing-sexp)
               ;; Indent by constant offset
               (goto-char containing-sexp)
               (+ (current-column) lisp-indent-offset))
              ;; in this case calculate-lisp-indent-last-sexp is not nil
              (calculate-lisp-indent-last-sexp
               (or
                ;; try to align the parameters of a known function
                (and lisp-indent-function
                     (not retry)
                     (funcall lisp-indent-function indent-point state))
                ;; If the function has no special alignment
                ;; or it does not apply to this argument,
                ;; try to align a constant-symbol under the last
                ;; preceding constant symbol, if there is such one of
                ;; the last 2 preceding symbols, in the previous
                ;; uncommented line.
                (and (save-excursion
                       (goto-char indent-point)
                       (skip-chars-forward " \t")
                       (looking-at ":"))
                     ;; The last sexp may not be at the indentation
                     ;; where it begins, so find that one, instead.
                     (save-excursion
                       (goto-char calculate-lisp-indent-last-sexp)
                       ;; Handle prefix characters and whitespace
                       ;; following an open paren.  (Bug#1012)
                       (backward-prefix-chars)
                       (while (not (or (looking-back "^[ \t]*\\|([ \t]+"
                                                     (line-beginning-position))
                                       (and containing-sexp
                                            (>= (1+ containing-sexp) (point)))))
                         (forward-sexp -1)
                         (backward-prefix-chars))
                       (setq calculate-lisp-indent-last-sexp (point)))
                     (> calculate-lisp-indent-last-sexp
                        (save-excursion
                          (goto-char (1+ containing-sexp))
                          (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t)
                          (point)))
                     (let ((parse-sexp-ignore-comments t)
                           indent)
                       (goto-char calculate-lisp-indent-last-sexp)
                       (or (and (looking-at ":")
                                (setq indent (current-column)))
                           (and (< (line-beginning-position)
                                   (prog2 (backward-sexp) (point)))
                                (looking-at ":")
                                (setq indent (current-column))))
                       indent))
                ;; another symbols or constants not preceded by a constant
                ;; as defined above.
                normal-indent))
              ;; in this case calculate-lisp-indent-last-sexp is nil
              (desired-indent)
              (t
               normal-indent))))))

Son Notlar

Bu sorunun emac'ların alıntılanmış ve alıntılanmamış listelerin işlev olarak girintisini nasıl durduracağı konusunda daha iyi genelleştirileceğini belirtmek gerekir .

Kaushalmodi'nin cevabına çok daha hacimli bir alternatif için, lisp-indent-functionMark H. Weaver'ın scheme-indent-functionGuile Scheme'deki anahtar kelimelerin hizalamasını düzeltmek için yaptıklarına benzer bir şeyin üzerine yazabilirsiniz .

Kodu http://netris.org/~mhw/scheme-indent-function.el adresinden kopyaladım ; tek değişiklik yeni bir condcümle eklemektir . lisp-indent-functionBu işlevi olduğu gibi kullanmak yerine geçerli kodu almak isteyebilirsiniz .

(Girinti işlevlerinin bu gibi küçük değişiklikleri basitleştirmek için daha fazla kancaya maruz kalmaması üzücü.)

(defun scheme-indent-function (indent-point state)
  "Scheme mode function for the value of the variable `lisp-indent-function'.
This behaves like the function `lisp-indent-function', except that:

i) it checks for a non-nil value of the property `scheme-indent-function'
\(or the deprecated `scheme-indent-hook'), rather than `lisp-indent-function'.

ii) if that property specifies a function, it is called with three
arguments (not two), the third argument being the default (i.e., current)
indentation."
  (let ((normal-indent (current-column)))
    (goto-char (1+ (elt state 1)))
    (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t)
    (if (and (elt state 2)
             (not (looking-at "\\sw\\|\\s_")))
        ;; car of form doesn't seem to be a symbol
        (progn
          (if (not (> (save-excursion (forward-line 1) (point))
                      calculate-lisp-indent-last-sexp))
              (progn (goto-char calculate-lisp-indent-last-sexp)
                     (beginning-of-line)
                     (parse-partial-sexp (point)
                     calculate-lisp-indent-last-sexp 0 t)))
          ;; Indent under the list or under the first sexp on the same
          ;; line as calculate-lisp-indent-last-sexp.  Note that first
          ;; thing on that line has to be complete sexp since we are
          ;; inside the innermost containing sexp.
          (backward-prefix-chars)
          (current-column))
      (let ((function (buffer-substring (point)
                    (progn (forward-sexp 1) (point))))
        method)
    (setq method (or (get (intern-soft function) 'scheme-indent-function)
             (get (intern-soft function) 'scheme-indent-hook)))
    (cond ((or (eq method 'defun)
           (and (null method)
            (> (length function) 3)
            (string-match "\\`def" function)))
           (lisp-indent-defform state indent-point))
              ;; This next cond clause is the only change -mhw
          ((and (null method)
                    (> (length function) 1)
                    ; The '#' in '#:' seems to get lost, not sure why
                    (string-match "\\`:" function))
               (let ((lisp-body-indent 1))
                 (lisp-indent-defform state indent-point)))
          ((integerp method)
           (lisp-indent-specform method state
                     indent-point normal-indent))
          (method
        (funcall method state indent-point normal-indent)))))))

El-patchlisp-indent-function paketimi kullanarak geleceğe dönük bir şekilde geçersiz kılabilirsiniz :

(el-patch-defun lisp-indent-function (indent-point state)
  "This function is the normal value of the variable `lisp-indent-function'.
The function `calculate-lisp-indent' calls this to determine
if the arguments of a Lisp function call should be indented specially.
INDENT-POINT is the position at which the line being indented begins.
Point is located at the point to indent under (for default indentation);
STATE is the `parse-partial-sexp' state for that position.
If the current line is in a call to a Lisp function that has a non-nil
property `lisp-indent-function' (or the deprecated `lisp-indent-hook'),
it specifies how to indent.  The property value can be:
* `defun', meaning indent `defun'-style
  (this is also the case if there is no property and the function
  has a name that begins with \"def\", and three or more arguments);
* an integer N, meaning indent the first N arguments specially
  (like ordinary function arguments), and then indent any further
  arguments like a body;
* a function to call that returns the indentation (or nil).
  `lisp-indent-function' calls this function with the same two arguments
  that it itself received.
This function returns either the indentation to use, or nil if the
Lisp function does not specify a special indentation."
  (el-patch-let (($cond (and (elt state 2)
                             (el-patch-wrap 1 1
                               (or (not (looking-at "\\sw\\|\\s_"))
                                   (looking-at ":")))))
                 ($then (progn
                          (if (not (> (save-excursion (forward-line 1) (point))
                                      calculate-lisp-indent-last-sexp))
                              (progn (goto-char calculate-lisp-indent-last-sexp)
                                     (beginning-of-line)
                                     (parse-partial-sexp (point)
                                                         calculate-lisp-indent-last-sexp 0 t)))
                          ;; Indent under the list or under the first sexp on the same
                          ;; line as calculate-lisp-indent-last-sexp.  Note that first
                          ;; thing on that line has to be complete sexp since we are
                          ;; inside the innermost containing sexp.
                          (backward-prefix-chars)
                          (current-column)))
                 ($else (let ((function (buffer-substring (point)
                                                          (progn (forward-sexp 1) (point))))
                              method)
                          (setq method (or (function-get (intern-soft function)
                                                         'lisp-indent-function)
                                           (get (intern-soft function) 'lisp-indent-hook)))
                          (cond ((or (eq method 'defun)
                                     (and (null method)
                                          (> (length function) 3)
                                          (string-match "\\`def" function)))
                                 (lisp-indent-defform state indent-point))
                                ((integerp method)
                                 (lisp-indent-specform method state
                                                       indent-point normal-indent))
                                (method
                                 (funcall method indent-point state))))))
    (let ((normal-indent (current-column))
          (el-patch-add
            (orig-point (point))))
      (goto-char (1+ (elt state 1)))
      (parse-partial-sexp (point) calculate-lisp-indent-last-sexp 0 t)
      (el-patch-swap
        (if $cond
            ;; car of form doesn't seem to be a symbol
            $then
          $else)
        (cond
         ;; car of form doesn't seem to be a symbol, or is a keyword
         ($cond $then)
         ((and (save-excursion
                 (goto-char indent-point)
                 (skip-syntax-forward " ")
                 (not (looking-at ":")))
               (save-excursion
                 (goto-char orig-point)
                 (looking-at ":")))
          (save-excursion
            (goto-char (+ 2 (elt state 1)))
            (current-column)))
         (t $else))))))

Bu benim için sorunu çözüyor; bağlam içinde görmek .