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le-python.el
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le-python.el
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;;; le-python.el --- lispy support for Python. -*- lexical-binding: t -*-
;; Copyright (C) 2016-2019 Oleh Krehel
;; This file is not part of GNU Emacs
;; This file is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; For a full copy of the GNU General Public License
;; see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;;; Code:
(require 'python)
(require 'json)
(defun lispy-trim-python (str)
"Trim extra Python indentation from STR.
STR is a string copied from Python code. It can be that each line
of STR is prefixed by e.g. 4 or 8 or 12 spaces.
Stripping them will produce code that's valid for an eval."
(if (string-match "\\`\\( +\\)" str)
(let* ((indent (match-string 1 str))
(re (concat "^" indent)))
(apply #'concat
(split-string str re t)))
str))
(defun lispy-eval-python-bnd ()
(let (bnd)
(save-excursion
(cond ((region-active-p)
(cons
(if (> (count-lines (region-beginning) (region-end)) 1)
(save-excursion
(goto-char (region-beginning))
(skip-chars-backward " ")
(point))
(region-beginning))
(region-end)))
((and (looking-at lispy-outline)
(looking-at lispy-outline-header))
(lispy--bounds-outline))
((and (looking-at "@") (bolp))
(setq bnd (cons (point)
(save-excursion
(re-search-forward "^def" nil t)
(goto-char (match-beginning 0))
(cdr (lispy-bounds-python-block))))))
((setq bnd (lispy-bounds-python-block)))
((bolp)
(lispy--bounds-c-toplevel))
((lispy-bolp)
(lispy--bounds-c-toplevel))
(t
(cond ((lispy-left-p))
((lispy-right-p)
(backward-list))
(t
(error "Unexpected")))
(setq bnd (lispy--bounds-dwim))
(ignore-errors (backward-sexp))
(while (or (eq (char-before) ?.)
(eq (char-after) ?\())
(backward-sexp))
(setcar bnd (point))
bnd)))))
(defun lispy--count-regex (re bnd)
(let ((count 0))
(save-excursion
(goto-char (car bnd))
(while (re-search-forward re (cdr bnd) t)
(unless (lispy--in-string-or-comment-p)
(cl-incf count))))
count))
(defun lispy-extended-eval-str (bnd)
"This function should strip python comments.
So that we can make multi-line expression into a single-line one.
It didn't work great."
(buffer-substring-no-properties (car bnd) (cdr bnd))
;; (let ((lp (lispy--count-regex "(" bnd))
;; (rp (lispy--count-regex ")" bnd)))
;; (save-excursion
;; (goto-char (cdr bnd))
;; (while (< rp lp)
;; (re-search-forward "[()]" nil t)
;; (cond ((string= (match-string 0) "(")
;; (cl-incf lp))
;; ((string= (match-string 0) ")")
;; (cl-incf rp))
;; (t
;; (error "Unexpected"))))
;; (if (lispy-after-string-p ")")
;; (let ((end (point)))
;; (save-excursion
;; (forward-sexp -1)
;; (concat (buffer-substring-no-properties
;; (car bnd) (point))
;; (replace-regexp-in-string
;; "[\\]*\n[\t ]*" " "
;; (replace-regexp-in-string
;; " *#.*[^\"]$" ""
;; (buffer-substring-no-properties
;; (point) end))))))
;; (buffer-substring-no-properties (car bnd) (point)))))
)
(defun lispy-eval-python-str (&optional bnd)
(let* ((bnd (or bnd (lispy-eval-python-bnd)))
(str1 (lispy-trim-python
(lispy-extended-eval-str bnd)))
(str1.4 (if (string-match-p "\\`\\(\\w\\|\\s_\\)+ :=" str1)
(replace-regexp-in-string ":=" "=" str1)
str1))
(str1.5 (replace-regexp-in-string "^ *#[^\n]+\n" "" str1.4))
;; (str2 (replace-regexp-in-string "\\\\\n +" "" str1.5))
;; (str3 (replace-regexp-in-string "\n *\\([])}]\\)" "\\1" str2))
;; (str4 (replace-regexp-in-string "\\([({[,]\\)\n +" "\\1" str3))
;; (str5 (replace-regexp-in-string "\"\n *\"" "\" \"" str4))
)
str1.5))
(defun lispy-bounds-python-block ()
(if (save-excursion
(when (looking-at " ")
(forward-char))
(python-info-beginning-of-block-p))
(let ((indent (if (bolp)
0
(1+ (- (point) (line-beginning-position))))))
(cons
(line-beginning-position)
(save-excursion
(python-nav-end-of-block)
(while (let ((pt (point))
bnd)
(skip-chars-forward "\n ")
(when (setq bnd (lispy--bounds-comment))
(goto-char (cdr bnd)))
(beginning-of-line)
(if (looking-at (format "[\n ]\\{%d,\\}\\(except\\|else\\|elif\\)" indent))
t
(goto-char pt)
nil))
(goto-char (match-beginning 1))
(python-nav-end-of-block))
(point))))
(cons (if (looking-at " ")
(1+ (point))
(point))
(save-excursion
(end-of-line)
(let (bnd)
(when (setq bnd (lispy--bounds-string))
(goto-char (cdr bnd))))
(end-of-line)
(while (member (char-before) '(?\\ ?\( ?\, ?\[ ?\{))
(if (member (char-before) '(?\( ?\[ ?\{))
(progn
(up-list)
(end-of-line))
(end-of-line 2)))
(point)))))
(defvar-local lispy-python-buf nil)
(declare-function mash-make-shell "ext:mash")
(defvar-local python-shell--interpreter nil)
(defvar-local python-shell--interpreter-args nil)
(define-minor-mode lispy-python-interaction-mode
"Minor mode for eval-ing Python code."
:group 'lispy
(when lispy-python-interaction-mode
(when python-shell--parent-buffer
(python-util-clone-local-variables python-shell--parent-buffer))
(setq-local indent-tabs-mode nil)
(setq-local python-shell--prompt-calculated-input-regexp nil)
(setq-local python-shell--block-prompt nil)
(setq-local python-shell--prompt-calculated-output-regexp nil)
(python-shell-prompt-set-calculated-regexps)
(setq comint-prompt-regexp python-shell--prompt-calculated-input-regexp)
(setq-local comint-prompt-read-only t)
(setq mode-line-process '(":%s"))
(setq-local comint-output-filter-functions
'(ansi-color-process-output
python-shell-comint-watch-for-first-prompt-output-filter
python-comint-postoutput-scroll-to-bottom
comint-watch-for-password-prompt))
(setq-local compilation-error-regexp-alist python-shell-compilation-regexp-alist)
(add-hook 'completion-at-point-functions
#'python-shell-completion-at-point nil 'local)
(define-key inferior-python-mode-map "\t"
'python-shell-completion-complete-or-indent)
(make-local-variable 'python-shell-internal-last-output)
(compilation-shell-minor-mode 1)
(python-pdbtrack-setup-tracking)))
(defun lispy-set-python-process-action (x)
(when (and current-prefix-arg (consp x))
(let* ((process (cdr x))
(buffer (process-buffer process)))
(kill-process process)
(sit-for 0.01)
(kill-buffer buffer)
(setq x (car x))))
(let ((buf (cond ((consp x)
(process-buffer (cdr x)))
((require 'mash-python nil t)
(save-window-excursion
(mash-make-shell x 'mash-new-lispy-python)))
(t
(process-buffer
(lispy--python-proc (concat "lispy-python-" x)))))))
(setq lispy-python-buf buf)
(with-current-buffer lispy-python-buf
(lispy-python-interaction-mode)
(setq lispy--python-middleware-file
(if (file-name-absolute-p lispy-python-middleware-file)
lispy-python-middleware-file
(expand-file-name "lispy-python.py" lispy-site-directory)))
(setq lispy-python-buf buf)))
(let ((lp (ignore-errors (lispy--eval-python-plain "lp"))))
(unless (and lp (string-match-p "module 'lispy-python'" lp))
(lispy-python-middleware-reload))))
(defvar lispy-python-process-regexes
'("^lispy-python-\\(.*\\)" "\\`\\(Python\\)\\'"
"\\`\\(comint.*\\)\\'"
"\\`\\(shell.*\\)\\'"
"\\`\\(gud-\\(?:pdb\\|python\\)\\)\\'")
"List of regexes for process buffers that run Python.")
(defun lispy-short-process-name (x)
(let ((pname (process-name x)))
(car
(delq nil
(mapcar
(lambda (re)
(when (string-match re pname)
(let ((m (match-string 1 pname)))
(if (string-match-p "comint\\|shell" m)
(buffer-name (process-buffer x))
m))))
lispy-python-process-regexes)))))
(defvar lispy-override-python-binary nil
"When non-nil, override what `lispy--python-proc' uses.")
(defun lispy-set-python-process (&optional arg)
"Associate a (possibly new) Python process to the current buffer.
Each buffer can have only a single Python process associated with
it at one time."
(interactive "P")
(let* ((process-names
(delq nil
(mapcar
(lambda (x)
(let ((name (lispy-short-process-name x)))
(when name
(cons name x))))
(process-list))))
(lispy-override-python-binary
(when (equal arg '(16))
(read-string "python binary: "))))
(ivy-read (if arg "Restart process: " "Process: ") process-names
:action #'lispy-set-python-process-action
:preselect (when (process-live-p (get-buffer-process lispy-python-buf))
(lispy-short-process-name (get-buffer-process lispy-python-buf)))
:caller 'lispy-set-python-process)))
(defvar lispy--python-middleware-loaded-p nil
"Nil if the Python middleware in \"lispy-python.py\" wasn't loaded yet.")
(defvar lispy-python-middleware-file "lispy-python.py")
(defvar lispy--python-middleware-file "lispy-python.py")
(defvar lispy-python-init-file (expand-file-name "~/git/site-python/init.py"))
(defvar lispy--python-init-file nil)
(defun lispy--python-poetry-name ()
(let ((pyproject (expand-file-name "pyproject.toml" (counsel-locate-git-root))))
(and (file-exists-p pyproject)
(not (equal python-shell-interpreter "python"))
(with-current-buffer (find-file-noselect pyproject)
(goto-char (point-min))
(when (re-search-forward "\\[tool.poetry\\]\nname *= *\"\\([^\"]+\\)\"" nil t)
(match-string-no-properties 1))))))
(defun lispy--python-proc-name ()
(or (and (process-live-p (get-buffer-process lispy-python-buf))
(process-name (get-buffer-process lispy-python-buf)))
(let ((name
(or (lispy--python-poetry-name)
(if (string-match "\\(?::python \\|python_\\)\\(.*\\)\\'" python-shell-interpreter-args)
(match-string 1 python-shell-interpreter-args)
"default"))))
(concat "lispy-python-" name))))
(defun lispy--python-proc (&optional name)
(let* ((proc-name (or name
(lispy--python-proc-name)))
(process (get-process proc-name)))
(if (process-live-p process)
process
(let* ((python-shell-font-lock-enable nil)
(inferior-python-mode-hook nil)
(poetry-name (lispy--python-poetry-name))
(python-shell-interpreter
(if poetry-name
"poetry"
python-shell-interpreter))
(python-shell-interpreter-args
(if poetry-name
"run python"
python-shell-interpreter-args))
;; (python-shell-interpreter
;; (cond
;; ((and (file-exists-p python-shell-interpreter)
;; (not (file-directory-p python-shell-interpreter)))
;; (expand-file-name python-shell-interpreter))
;; ((save-excursion
;; (goto-char (point-min))
;; (looking-at "#!\\(?:/usr/bin/env \\)\\(.*\\)$"))
;; (match-string-no-properties 1))
;; (t
;; python-shell-interpreter)))
(python-binary-name
(or lispy-override-python-binary
(concat
(string-trim-right
(shell-command-to-string
(concat "which " python-shell-interpreter)))
" "
python-shell-interpreter-args)))
(buffer
(let ((python-shell-completion-native-enable nil)
(default-directory (if poetry-name
(counsel-locate-git-root)
default-directory)))
(python-shell-make-comint
python-binary-name proc-name nil nil))))
(setq lispy--python-middleware-file
(if (file-name-absolute-p lispy-python-middleware-file)
lispy-python-middleware-file
(expand-file-name "lispy-python.py" lispy-site-directory)))
(setq lispy--python-init-file lispy-python-init-file)
(setq process (get-buffer-process buffer))
(sit-for 0.1)
(unless (process-live-p process)
(pop-to-buffer buffer)
(user-error "Could not start %s" python-binary-name))
(with-current-buffer buffer
(python-shell-completion-native-turn-on)
(setq lispy-python-buf buffer)
(lispy-python-middleware-reload)))
process)))
(defun lispy--python-print (str)
(format
(if (and (memq this-command '(pspecial-lispy-eval lispy-eval))
(memq current-prefix-arg '(nil)))
"lp.pprint((%s))"
"print(repr((%s)))")
str))
(defun lispy--py-to-el (py)
(read (lispy--eval-python-plain (format "lp.print_elisp(%s)" py))))
(defun lispy--python-nth (py-lst)
(let (;; (repr (condition-case nil
;; (read (lispy--eval-python-plain (format "print_elisp(%s)" py-expr)))
;; (error
;; (lispy-message "Eval-error: %s" py-expr))))
(len (lispy--py-to-el (format "len(list(%s))" py-lst)))
(repr (ignore-errors (lispy--py-to-el (format "list(%s)" py-lst)))))
(read
(ivy-read
"idx: "
(if repr
(cl-mapcar (lambda (x i)
(concat (number-to-string i)
" "
(cond ((listp x)
(mapconcat
(lambda (y) (if (stringp y) y (prin1-to-string y)))
x " "))
((stringp x)
x)
(t
(prin1-to-string x)))))
repr
(number-sequence 0 (1- len)))
(mapcar #'number-to-string (number-sequence 0 (1- len))))))))
(defun lispy--python-nth-element (str single-line-p)
"Check if STR is of the form \"ITEM in ARRAY_LIKE\".
If so, return an equivalent of ITEM = ARRAY_LIKE[IDX]; ITEM."
(when (and single-line-p
(string-match "\\`\\([A-Z_a-z0-9, ]+\\|\\(?:([^\n]+)\\)\\) in \\(.*\\)\\'" str)
(not (save-excursion (beginning-of-line) (looking-at " *if"))))
(let* ((vars (match-string 1 str))
(val (match-string 2 str))
(idx (lispy--python-nth val)))
(format "%s = list (%s)[%s]\nprint ((%s))"
vars val idx vars))))
(defun lispy--python-eval-string-dwim (str)
(setq str (string-trim str))
(let ((single-line-p (= (cl-count ?\n str) 0)))
(cond
((string-match "\\`@pytest.mark.parametrize([^\"]+\"\\([^\"]+\\)\",\\(.*?\\)[, ]*)\\'" str)
(let* ((vars (match-string 1 str))
(vals (match-string 2 str))
(idx (lispy--python-nth vals)))
(format "%s = %s[%s]\nprint((%s))" vars vals idx vars)))
((string-match-p "\"\"\"" str)
str)
((string-match "^\\[" str)
(format "__last__ = %s\n%s"
str (lispy--python-print "__last__")))
((string-match "\\`\\(\\(?:\\sw\\|\\s_\\)+\\)\\'" str)
(lispy--python-print (match-string 1 str)))
((and (or (string-match "\\`\\(\\(?:[.,* ]\\|\\sw\\|\\s_\\|[][]\\)+\\) += " str)
(string-match "\\`\\(([^)]+)\\) *=[^=]" str)
(string-match "\\`\\(\\(?:\\sw\\|\\s_\\)+ *\\[[^]]+\\]\\) *=[^=]" str)
(string-match "\\`\\(\\(?:\\sw\\|\\s_\\)+\\)\\(:[^:=]+\\) *=" str))
(save-match-data
(or single-line-p
(and (not (string-match-p "lp\\." str))
(equal (ignore-errors
(lispy--eval-python
(format "x=lp.is_assignment(\"\"\"%s\"\"\")\nprint (x)" str)
t))
"True")))))
(concat str "\n" (lispy--python-print (match-string 1 str))))
((lispy--python-nth-element str single-line-p))
((string-match "\\`def \\([a-zA-Z_0-9]+\\)\\s-*(\\s-*self" str)
(let ((qual-name (python-info-current-defun)))
(concat str
"\n"
(format "lp.rebind(%s, fname='%s', line=%d)"
qual-name
(buffer-file-name)
(line-number-at-pos)))))
((string-match "\\`\\([^if].*\\) as \\(\\(?:\\sw\\|\\s_\\)+\\)\\'" str)
(let ((val (match-string 1 str))
(var (match-string 2 str)))
(format "%s = %s.__enter__()" var val)))
((eq current-prefix-arg 2)
(lispy--python-print str))
(t
str))))
(declare-function lpy-switch-to-shell "ext:lpy")
(defun lispy--eval-python-old (str &optional plain)
"Eval STR as Python code."
(let ((single-line-p (= (cl-count ?\n str) 0)))
(unless plain
(setq str (lispy--python-eval-string-dwim str))
;; bind __file__
(when (string-match "__file__" str)
(lispy--eval-python-plain (format "__file__ = '%s'\n" (buffer-file-name))))
;; eliminate return
(when (and single-line-p (string-match "\\`return \\(.*\\)\\'" str))
(setq str (match-string 1 str))))
(let ((res
(cond ((or single-line-p
(string-match "\n .*\\'" str)
(string-match "\"\"\"" str))
(replace-regexp-in-string
"" ""
(python-shell-send-string-no-output
str (lispy--python-proc))))
;; split last line
((string-match "\\`\\([\0-\377[:nonascii:]]*\\)\n\\([^\n]*\\)\\'" str)
(let* ((p1 (match-string 1 str))
(p2 (match-string 2 str))
(p1-output (python-shell-send-string-no-output
p1 (lispy--python-proc)))
p2-output)
(cond
((string-match-p "SyntaxError:\\|error:" p1-output)
(python-shell-send-string-no-output
str (lispy--python-proc)))
((null p1-output)
(signal 'eval-error ""))
((null (setq p2-output (lispy--eval-python p2)))
(signal 'eval-error ""))
(t
(concat
(if (string= p1-output "")
""
(concat p1-output "\n"))
p2-output)))))
(t
(error "unexpected")))))
(cond
((string-match "SyntaxError: 'return' outside function\\'" res)
(lispy--eval-python
(concat "__return__ = None\n"
(replace-regexp-in-string
"\\(^ *\\)return\\(.*\\)"
(lambda (x)
(concat
(match-string 1 x)
"__return__ ="
(if (= 0 (length (match-string 2 x)))
" None"
(match-string 2 x))))
str)
"\n"
(lispy--python-print "__return__"))
t))
((string-match "^RuntimeError: break$" res)
(lpy-switch-to-shell)
(goto-char (point-max))
(insert "lp.pm()")
(sit-for 0.1)
(comint-send-input)
"breakpoint")
((string-match "^Traceback.*:" res)
(set-text-properties
(match-beginning 0)
(match-end 0)
'(face error)
res)
(signal 'eval-error res))
((equal res "")
(setq lispy-eval-output "(ok)")
"")
((string-match-p "^<\\(?:map\\|filter\\|generator\\|enumerate\\|zip\\) object" res)
(let ((last (car (last (split-string str "\n")))))
(if (cond ((string-match "\\`lp.pprint(\\(.*\\))\\'" last)
(setq str (match-string 1 last)))
((string-match "\\`print(repr(\\(.*\\)))\\'" last)
(setq str (match-string 1 last))))
(lispy--eval-python-plain (format "%s = list(%s)\nlp.pprint(%s)" str str str))
(lispy--eval-python-plain (format "dbg = list(%s)\nlp.pprint(dbg)" str str str)))))
((string-match-p "SyntaxError:" res)
(signal 'eval-error res))
(t
(replace-regexp-in-string "\\\\n" "\n" res))))))
(defun lispy--dict (&rest plist)
(let (k v r)
(while (setq k (pop plist))
(setq v (pop plist))
(push (format
"'%s': %s"
(cond ((keywordp k)
(substring (symbol-name k) 1))
((stringp k)
k
k)
(t
(error "Unexpected")))
(cond ((eq v 't)
"True")
((eq v nil)
"None")
((stringp v)
(format "'%s'" v))
(t
(prin1-to-string v)))) r))
(concat "{"
(mapconcat #'identity (nreverse r) ",")
"}")))
(defun lispy--python-nth-1 (cands)
(let ((len (length cands)))
(read
(ivy-read
"idx: "
(cl-mapcar
(lambda (x i)
(concat
(number-to-string i)
" "
(cond ((listp x)
(mapconcat
(lambda (y) (if (stringp y) y (prin1-to-string y)))
x " "))
((stringp x)
x)
(t
(prin1-to-string x)))))
cands
(number-sequence 0 (1- len)))))))
(defun lispy--eval-python-plain (str)
(python-shell-send-string-no-output
str (lispy--python-proc)))
(defun lispy--eval-python (str &optional use-in-expr)
(setq lispy-eval-output nil)
(let* ((echo (if (eq current-prefix-arg 2) nil t))
(fstr
(cond
((eq current-prefix-arg 3)
(format "lp.eval_to_json(\"\"\"lp.select_item(\"%s\", 0)\"\"\")" str))
((or (string-match-p ".\n+." str) (string-match-p "\"\"\"" str))
(let ((temp-file-name (python-shell--save-temp-file str)))
(format "lp.eval_to_json('', %s)"
(lispy--dict
:code temp-file-name
:fname (buffer-file-name)
:echo echo))))
(t
(format "lp.eval_to_json(\"\"\"%s \"\"\", %s)"
(replace-regexp-in-string "\\\\n" "\\\\n" str nil t)
(lispy--dict :fname (buffer-file-name)
:echo echo
:use-in-expr use-in-expr)))))
(rs (python-shell-send-string-no-output
fstr
(lispy--python-proc)))
(extra-out (and (string-match "^{" rs) (substring rs 0 (match-beginning 0))))
(res (json-parse-string
(substring rs (match-beginning 0)) :object-type 'plist :null-object nil))
(val (plist-get res :res))
(binds (plist-get res :binds))
(out (concat extra-out (plist-get res :out)))
(err (plist-get res :err)))
(when (eq current-prefix-arg 3)
(kill-new fstr))
(if err
(signal 'eval-error (concat out err))
(unless (equal out "")
(setq lispy-eval-output
(concat (propertize out 'face 'font-lock-string-face) "\n")))
(cond
((string= val "'select'")
(setq lispy-eval-output nil)
(let* ((cands (read out))
(idx (lispy--python-nth-1 cands)))
(lispy--eval-python-plain
(format "lp.select_item(\"\"\"%s\"\"\", %d)" str idx))))
((and val (not (string= val "'unset'")))
(if (string-prefix-p "\"" val)
(read val)
val))
(binds
(mapconcat
(lambda (x)
(concat (substring (symbol-name (car x)) 1) " = " (cadr x)))
(seq-partition binds 2)
"\n"))
(t
"(ok)")))))
(defun lispy--python-array-to-elisp (array-str)
"Transform a Python string ARRAY-STR to an Elisp string array."
(when (and (stringp array-str)
(not (string= array-str "")))
(let ((parts (with-temp-buffer
(python-mode)
(insert (substring array-str 1 -1))
(goto-char (point-min))
(let (beg res)
(while (< (point) (point-max))
(setq beg (point))
(forward-sexp)
(push (buffer-substring-no-properties beg (point)) res)
(skip-chars-forward ", "))
(nreverse res)))))
(mapcar (lambda (s)
(if (string-match "\\`\"" s)
(read s)
(if (string-match "\\`'\\(.*\\)'\\'" s)
(match-string 1 s)
s)))
parts))))
(defun lispy-python-symbol-bnd ()
(let ((bnd (or (bounds-of-thing-at-point 'symbol)
(cons (point) (point)))))
(save-excursion
(goto-char (car bnd))
(while (progn
(skip-chars-backward " ")
(lispy-after-string-p "."))
(backward-char 1)
(when (lispy-after-string-p "]")
(backward-list 1))
(skip-chars-backward " ")
(if (lispy-after-string-p ")")
(backward-sexp 2)
(backward-sexp)))
(skip-chars-forward " ")
(setcar bnd (point)))
bnd))
(defun lispy--python-beginning-of-object ()
(save-excursion
(backward-sexp)
(while (not (or
(bolp)
(lispy-looking-back "[[ \t(]")))
(backward-sexp))
(point)))
(defun lispy-python-completion-at-point ()
(cond ((save-excursion
(back-to-indentation)
(looking-at "\\(import\\|from\\) .*"))
(let* ((line (buffer-substring-no-properties
(line-beginning-position)
(point)))
(str
(format "lp.jedi_completions('%s')" line))
(cands
(lispy--python-array-to-elisp
(lispy--eval-python-plain str)))
(bnd (bounds-of-thing-at-point 'symbol))
(beg (if bnd (car bnd) (point)))
(end (if bnd (cdr bnd) (point))))
(list beg end cands)))
((looking-back "\\(?:\\sw\\|\\s_\\|)\\|\\]\\)\\[\\(\\(?:'\\|\"\\)?\\)" (line-beginning-position))
(let* ((quote_str (match-string-no-properties 1))
(bnd (save-excursion
(goto-char (1- (match-beginning 1)))
(cons (point)
(lispy--python-beginning-of-object))))
(str (lispy--string-dwim bnd))
(keys (read (lispy--eval-python-plain
(format "lp.print_elisp(%s.keys())" str)))))
(list (point) (point)
(if (> (length quote_str) 0)
keys
(mapcar
(lambda (s)
(if (stringp s)
(concat "\"" s "\"")
(prin1-to-string s)))
keys)))))
((lispy-complete-fname-at-point))
(t
(let* ((bnd (lispy-python-symbol-bnd))
(str (buffer-substring-no-properties
(car bnd) (cdr bnd)))
(str-com str))
(when (string-match "\\`\\(.*\\)\\.[^.]*\\'" str)
(let ((expr (format "__t__ = %s" (substring str 0 (match-end 1)))))
(setq str-com (concat "__t__" (substring str (match-end 1))))
(cl-incf (car bnd) (1+ (- (match-end 1) (match-beginning 0))))
(lispy--eval-python-plain expr)))
(list (car bnd)
(cdr bnd)
(let ((out (lispy--eval-python-plain
(format "lp.print_elisp(lp.get_completions('%s'))" str-com))))
(with-temp-buffer
(insert out)
(goto-char (point-min))
(when (re-search-forward "^(" nil t)
(goto-char (match-beginning 0)))
(read (current-buffer)))))))))
(defvar lispy--python-arg-key-re "\\`\\(\\(?:\\sw\\|\\s_\\)+\\)=\\([^\\0]+\\)\\'"
"Constant regexp for matching function keyword spec.")
(defun lispy--python-args (beg end)
(let (res)
(save-excursion
(goto-char beg)
(skip-chars-forward "\n\t ")
(setq beg (point))
(while (< (point) end)
(forward-sexp)
(while (and (< (point) end)
(not (looking-at ","))
(ignore-errors
(forward-sexp)
t)))
(push (buffer-substring-no-properties
beg (point))
res)
(skip-chars-forward ", \n")
(setq beg (point))))
(nreverse res)))
(defun lispy--python-step-in-loop ()
(when (looking-at " ?for \\([A-Z_a-z,0-9 ()]+\\) in \\(.*\\):")
(let* ((vars (match-string-no-properties 1))
(val (match-string-no-properties 2))
(res (lispy--eval-python
(format "lp.list_step(\"%s\",%s)" vars val)
t)))
(lispy-message res))))
(defun lispy--python-debug-step-in ()
(let ((orig-point (point)))
(unless (lispy--python-step-in-loop)
(when (looking-at " *(")
;; tuple assignment
(forward-list 1))
(re-search-forward "(" (line-end-position))
(backward-char)
(let* ((p-ar-beg (point))
(p-ar-end (save-excursion
(forward-list)
(point)))
(p-fn-end (progn
(skip-chars-backward " ")
(point)))
(method-p nil)
(p-fn-beg (progn
(backward-sexp)
(while (or (eq (char-before) ?.) (looking-at "\\["))
(setq method-p t)
(backward-sexp))
(point)))
(fn (buffer-substring-no-properties
p-fn-beg p-fn-end))
(args
(lispy--python-args (1+ p-ar-beg) (1- p-ar-end)))
(args (cl-mapcan (lambda (arg)
(if (string-match "\\`\\*\\(.*\\)\\'" arg)
(read
(lispy--eval-python
(format "lp.print_elisp(%s)" (match-string 1 arg))))
(list arg)))
args))
(args (if (and method-p
(string-match "\\`\\(.*?\\)\\.\\([^.]+\\)\\'" fn))
(cons (match-string 1 fn)
args)
args))
(args-key (cl-remove-if-not
(lambda (s)
(string-match lispy--python-arg-key-re s))
args))
(args-normal (cl-set-difference args args-key))
(fn-data
(read (lispy--eval-python-plain
(format "lp.argspec(%s)" fn))))
(fn-args
(plist-get fn-data :args))
(fn-varkw
(plist-get fn-data :varkw))
(fn-varargs
(plist-get fn-data :varargs))
(fn-keywords
(plist-get fn-data :keywords))
(fn-defaults
(mapcar (lambda (x)
(cond ((stringp x)
x)
(x (prin1-to-string x))
(t
"None")))
(plist-get fn-data :defaults)))
(fn-alist
(cl-mapcar #'cons
fn-args
(append (make-list (- (length fn-args)
(length fn-defaults))
nil)
fn-defaults)))
fn-alist-x dbg-cmd extra-keywords extra-varargs)
(cond (method-p
(unless (member '("self") fn-alist)
(push '("self") fn-alist)))
((member '("self") fn-alist)
(push (format "object.__new__(%s)" fn)
args-normal)))
(setq fn-alist-x fn-alist)
(dolist (arg args-normal)
(let ((var-name (pop fn-alist-x)))
(if var-name
(setcdr var-name arg)
(push arg extra-varargs))))
(setq extra-varargs (nreverse extra-varargs))
(dolist (arg args-key)
(if (string-match lispy--python-arg-key-re arg)
(let ((arg-name (match-string 1 arg))
(arg-val (match-string 2 arg))
arg-cell)
(cond ((setq arg-cell (assoc arg-name fn-alist))
(setcdr arg-cell arg-val))
(fn-keywords
(push (concat arg-name "=" arg-val) extra-keywords))
(fn-varkw
(push (cons arg-name arg-val) fn-alist))
(t
(error "\"%s\" is not in %s" arg-name fn-alist))))
(error "\"%s\" does not match the regex spec" arg)))
(when (memq nil (mapcar #'cdr fn-alist))
(error "Not all args were provided: %s" fn-alist))
(when fn-varargs
(cl-pushnew
(cons fn-varargs
(concat "(" (mapconcat (lambda (s) (concat s ",")) extra-varargs " ") ")"))
fn-alist))
(when fn-keywords
(cl-pushnew
(cons fn-keywords
(concat "dict(" (mapconcat #'identity extra-keywords ", ") ")"))
fn-alist))
(setq dbg-cmd
(concat
(format "lp.step_into_module_maybe(%s); "
(if method-p
(cdar fn-alist)
fn))
"("
(mapconcat #'car fn-alist ", ")
")=("
(mapconcat #'cdr fn-alist ", ")
")"))
(condition-case nil
(lispy--eval-python-plain dbg-cmd)
(error
(lispy--eval-python
(format "lp.step_in(%s,%s)" fn (buffer-substring-no-properties
(1+ p-ar-beg) (1- p-ar-end))))))
(let ((line (plist-get fn-data :line)))
(unless (eq line 1)
(goto-char orig-point)
(when fn-data
(set-text-properties
0 1
`(
filename ,(plist-get fn-data :filename)
line ,line)
fn))))
(let ((buf lispy-python-buf))
(lispy-goto-symbol fn)
(setq lispy-python-buf buf))))))
(declare-function deferred:sync! "ext:deferred")
(declare-function jedi:goto-definition "ext:jedi-core")
(declare-function jedi:call-deferred "ext:jedi-core")
(defun lispy--goto-symbol-python (file line)
(find-file file)
(goto-char (point-min))
(forward-line (1- line))
(back-to-indentation)
(unless (bolp)
(backward-char)))
(defun lispy--python-goto-definition ()
(save-buffer)
(let ((definition (lispy--eval-python-plain
(format "lp.goto_definition('%s',%d,%d)"
(buffer-file-name)
(line-number-at-pos)
(current-column)))))
(unless (string= definition "")
(cl-destructuring-bind (fname line column) (read definition)
(lispy--goto-symbol-python fname line)
(forward-char column))
t)))
(defun lispy-goto-symbol-python (symbol)
(save-restriction
(widen)
(let ((file (get-text-property 0 'filename symbol))
(line (get-text-property 0 'line symbol)))
(if file
(lispy--goto-symbol-python file line)
(or (lispy--python-goto-definition)
(let* ((symbol (or (python-info-current-symbol) symbol))
(r (ignore-errors
(lispy--eval-python-plain
(format "lp.argspec(%s)" symbol))))
(plist (and r (read r))))
(cond (plist
(lispy--goto-symbol-python
(plist-get plist :filename)
(plist-get plist :line)))
((and (equal file "None")
(let ((symbol-re
(concat "^\\(?:def\\|class\\).*"
(car (last (split-string symbol "\\." t))))))
(re-search-backward symbol-re nil t))))