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Mercurial > core / lisp/lib/cli/clap/opt.lisp

changeset 649: 6e5006dfe7b8
parent: f901de70a80e
child: 119532882cb1
author: Richard Westhaver <ellis@rwest.io>
date: Thu, 12 Sep 2024 22:38:22 -0400
permissions: -rw-r--r--
description: clap parsing updates 
     1 ;;; cli/clap/opt.lisp --- Clap Opts
     2 
     3 ;; CLI Opt Objects
     4 
     5 ;;; Code:
     6 (in-package :cli/clap/obj)
     7 
     8 ;;; Parsers
     9 (make-opt-parser string *arg*)
    10 
    11 (make-opt-parser boolean (when *arg* t))
    12 
    13 (make-opt-parser (form string) (read-from-string *arg*))
    14 
    15 (make-opt-parser (list form) (when (listp *arg*) *arg*))
    16 
    17 (make-opt-parser (symbol form) (when (symbolp *arg*) *arg*))
    18 
    19 (make-opt-parser (keyword form) (when (keywordp *arg*) *arg*))
    20 
    21 (make-opt-parser number (when *arg* (parse-number *arg*)))
    22 
    23 (make-opt-parser integer (when *arg* (parse-integer *arg*)))
    24 
    25 (make-opt-parser (file string) 
    26   (parse-native-namestring *arg* nil *default-pathname-defaults* :as-directory nil))
    27 
    28 (make-opt-parser (directory string)
    29   (sb-ext:parse-native-namestring *arg* nil *default-pathname-defaults* :as-directory t))
    30 
    31 (make-opt-parser (pathname string)
    32   (pathname *arg*))
    33 
    34 ;;; Objects
    35 (defstruct cli-opt
    36   ;; note that cli-opts can have a nil or unbound name slot
    37   (name "" :type string)
    38   (kind 'boolean :type (or symbol list))
    39   (thunk nil :type (or null function symbol))
    40   (val nil)
    41   (global nil :type boolean)
    42   (description nil :type (or null string))
    43   (lock nil :type boolean))
    44 
    45 (defmethod activate-opt ((self cli-opt))
    46   (setf (cli-lock-p self) t))
    47 
    48 (defun %compose-short-opt (o)
    49   (setf (cli-opt-val o) t)
    50   (make-cli-node 'opt o))
    51 
    52 (defun %compose-long-opt (o &optional val)
    53   (setf (cli-opt-val o) val)
    54   (make-cli-node 'opt o))
    55 
    56 (defmethod handle-unknown-argument ((self cli-opt) arg))
    57 (defmethod handle-missing-argument ((self cli-opt) arg))
    58 (defmethod handle-invalid-argument ((self cli-opt) arg))
    59 
    60 (defmethod initialize-instance :after ((self cli-opt) &key)
    61   (with-slots (name thunk) self
    62     (unless (stringp name) (setf name (format nil "~(~A~)" name)))
    63     (when (symbolp thunk) (setf thunk (funcall (compile nil `(lambda () ,(symbol-function thunk))))))
    64     self))
    65 
    66 (defmethod install-thunk ((self cli-opt) (lambda function) &optional compile)
    67   "Install THUNK into the corresponding slot in cli-cmd SELF."
    68   (let ((%thunk (if compile (compile nil lambda) lambda)))
    69     (setf (cli-thunk self) %thunk)
    70     self))
    71 
    72 (defmethod print-object ((self cli-opt) stream)
    73   (print-unreadable-object (self stream :type t)
    74     (format stream "~A :global ~A :val ~A"
    75             (cli-opt-name self)
    76             (cli-opt-global self)
    77             (cli-opt-val self))))
    78 
    79 (defmethod print-usage ((self cli-opt) &optional stream)
    80   (format stream "-~(~{~A~^/--~}~)~A~A"
    81           (let ((n (cli-opt-name self)))
    82             (declare (simple-string n))
    83             (list (make-shorty n) n))
    84           (if (cli-opt-global self) "* " " ")
    85           (if-let ((d (and (slot-boundp self 'description) (cli-opt-description self))))
    86             (format stream ":  ~A" d)
    87             "")))
    88 
    89 (defmethod cli-equal ((a cli-opt) (b cli-opt))
    90   (with-slots (name global kind) a
    91     (with-slots ((bn name) (bg global) (bk kind)) b
    92       (and (equal name bn)
    93            (eq global bg)
    94            (equal kind bk)))))
    95 
    96 (defmethod call-opt ((self cli-opt) arg)
    97   (when-let ((thunk (cli-opt-thunk self)))
    98     (setf (cli-opt-val self) (funcall thunk arg))))
    99 
   100 (defmethod do-opt ((self cli-opt))
   101   (call-opt self (cli-opt-val self)))
   102 
   103 (defmethod do-opts ((self vector) &optional global)
   104   (declare (ignore global))
   105   (loop for opt across self
   106         do (do-opt opt)))
   107 
   108 (defun active-global-opt-p (opt)
   109   "Return non-nil if OPT is active at runtime and global."
   110   (and (cli-opt-lock opt) (cli-opt-global opt)))