| 4358148e |
1 | (in-package :lisp-on-lines) |
| 2 | |
| 3 | (define-description T () |
| 4 | ((identity :label nil :function #'identity) |
| b1c8f43b |
5 | (type :label "Type" :function #'type-of) |
| 6de8d300 |
6 | (class :label "Class" :function #'class-of) |
| 7 | (active-attributes :label "Attributes" |
| 8 | :value nil |
| 9 | :activep nil |
| b7657b86 |
10 | :keyword :attributes) |
| 11 | (attribute-delimiter :label "Attribute Delimiter" |
| 12 | :value "~%" |
| 13 | :activep nil |
| 14 | :keyword :delimter) |
| 15 | (active-descriptions :label "Active Descriptions" |
| 16 | :value nil |
| 17 | :activep nil |
| 18 | :keyword :activate) |
| 19 | (inactive-descriptions :label "Inactive Descriptions" |
| 20 | :value nil |
| 21 | :activep nil |
| 22 | :keyword :deactivate) |
| f4efa7ff |
23 | (label-formatter :value (lambda (label) |
| b1c8f43b |
24 | (generic-format *display* "~A:" label)) |
| f4efa7ff |
25 | :activep nil) |
| 26 | (value-formatter :value (curry #'format nil "~A") |
| 27 | :activep nil))) |
| 4358148e |
28 | |
| 29 | (define-layered-method description-of (any-lisp-object) |
| 30 | (find-description 't)) |
| 31 | |
| b7657b86 |
32 | (define-layered-function display-attribute (attribute) |
| 33 | (:method (attribute) |
| 34 | (display-using-description attribute *display* (attribute-object attribute)))) |
| e8d4fa45 |
35 | |
| b7657b86 |
36 | (define-layered-function display-attribute-label (attribute) |
| 37 | (:method (attribute) |
| f4efa7ff |
38 | (funcall (attribute-label-formatter attribute) (attribute-label attribute)))) |
| 39 | |
| e8d4fa45 |
40 | |
| b7657b86 |
41 | |
| 42 | (define-layered-function display-attribute-value (attribute) |
| 43 | (:method (attribute) |
| 44 | (flet ((disp (val &rest args) |
| 45 | (apply #'display *display* val |
| 46 | :activate (attribute-active-descriptions attribute) |
| 47 | :deactivate (attribute-inactive-descriptions attribute) |
| 48 | args))) |
| 49 | |
| e8d4fa45 |
50 | (let ((val (attribute-value attribute))) |
| b7657b86 |
51 | (if (eql val (attribute-object attribute)) |
| 52 | (generic-format *display* (funcall (attribute-value-formatter attribute) val)) |
| e8d4fa45 |
53 | (with-active-descriptions (inline) |
| b7657b86 |
54 | (if (slot-boundp attribute 'active-attributes) |
| 55 | (disp val :attributes (slot-value attribute 'active-attributes)) |
| 56 | (disp val)))))))) |
| e8d4fa45 |
57 | |
| 58 | (define-layered-method display-using-description |
| 59 | ((attribute standard-attribute) display object &rest args) |
| 60 | (declare (ignore args)) |
| 61 | (when (attribute-label attribute) |
| b7657b86 |
62 | (display-attribute-label attribute)) |
| 63 | (display-attribute-value attribute)) |
| e8d4fa45 |
64 | |
| 4358148e |
65 | (define-display ((description t)) |
| b7657b86 |
66 | (let ((attributes (attributes description))) |
| 67 | (display-attribute (first attributes)) |
| f4efa7ff |
68 | (dolist (attribute (rest attributes) (values)) |
| b7657b86 |
69 | (generic-format *display* |
| 70 | (attribute-value |
| 71 | (find-attribute description 'attribute-delimiter))) |
| 72 | (display-attribute attribute)))) |
| 73 | |
| 74 | |
| f4efa7ff |
75 | (define-display :around ((description t) (display null) object) |
| 76 | (with-output-to-string (*standard-output*) |
| b1c8f43b |
77 | (call-next-layered-method description t object)) |
| 78 | ) |
| b7657b86 |
79 | |
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80 | |
| 6de8d300 |
81 | |
| 82 | |
HCoop / clinton / lisp-on-lines.git / blame