summaryrefslogtreecommitdiff
path: root/lisp/ldg-texi.el
blob: b03340993a1eaa748fa3876cc8b8c7f4843c0d94 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
(defvar ledger-path "/Users/johnw/bin/ledger")
(defvar ledger-sample-doc-path "/Users/johnw/src/ledger/doc/sample.dat")
(defvar ledger-normalization-args "--args-only --columns 80")

(defun ledger-update-test ()
  (interactive)
  (goto-char (point-min))
  (let ((command (buffer-substring (point-min) (line-end-position)))
        input)
    (re-search-forward "^<<<\n")
    (let ((beg (point)) end)
      (re-search-forward "^>>>")
      (setq end (match-beginning 0))
      (forward-line 1)
      (let ((output-beg (point)))
        (re-search-forward "^>>>")
        (goto-char (match-beginning 0))
        (delete-region output-beg (point))
        (apply #'call-process-region
               beg end (expand-file-name "~/Products/ledger/debug/ledger")
               nil t nil
               "-f" "-" "--args-only" "--columns=80" "--no-color"
               (split-string command " "))))))

(defun ledger-texi-write-test (name command input output &optional category)
  (let ((buf (current-buffer)))
    (with-current-buffer (find-file-noselect
                          (expand-file-name (concat name ".test") category))
      (erase-buffer)
      (let ((case-fold-search nil))
        (if (string-match "\\$LEDGER\\s-+" command)
            (setq command (replace-match "" t t command)))
        (if (string-match " -f \\$\\([-a-z]+\\)" command)
            (setq command (replace-match "" t t command))))
      (insert command ?\n)
      (insert "<<<" ?\n)
      (insert input)
      (insert ">>>1" ?\n)
      (insert output)
      (insert ">>>2" ?\n)
      (insert "=== 0" ?\n)
      (save-buffer)
      (unless (eq buf (current-buffer))
        (kill-buffer (current-buffer))))))

(defun ledger-texi-update-test ()
  (interactive)
  (let ((details (ledger-texi-test-details))
        (name (file-name-sans-extension
               (file-name-nondirectory (buffer-file-name)))))
    (ledger-texi-write-test
     name (nth 0 details)
     (nth 1 details)
     (ledger-texi-invoke-command
      (ledger-texi-expand-command
       (nth 0 details)
       (ledger-texi-write-test-data name (nth 1 details)))))))

(defun ledger-texi-test-details ()
  (goto-char (point-min))
  (let ((command (buffer-substring (point) (line-end-position)))
        input output)
    (re-search-forward "^<<<")
    (let ((input-beg (1+ (match-end 0))))
      (re-search-forward "^>>>1")
      (let ((output-beg (1+ (match-end 0))))
        (setq input (buffer-substring input-beg (match-beginning 0)))
        (re-search-forward "^>>>2")
        (setq output (buffer-substring output-beg (match-beginning 0)))
        (list command input output)))))

(defun ledger-texi-expand-command (command data-file)
  (if (string-match "\\$LEDGER" command)
      (replace-match (format "%s -f \"%s\" %s" ledger-path
                             data-file ledger-normalization-args) t t command)
    (concat (format "%s -f \"%s\" %s " ledger-path
                    data-file ledger-normalization-args) command)))

(defun ledger-texi-invoke-command (command)
  (with-temp-buffer (shell-command command t (current-buffer))
    (if (= (point-min) (point-max))
        (progn
          (push-mark nil t)
          (message "Command '%s' yielded no result at %d" command (point))
          (ding))
      (buffer-string))))

(defun ledger-texi-write-test-data (name input)
  (let ((path (expand-file-name name temporary-file-directory)))
    (with-current-buffer (find-file-noselect path)
      (erase-buffer)
      (insert input)
      (save-buffer))
    path))

(defun ledger-texi-update-examples ()
  (interactive)
  (save-excursion
    (goto-char (point-min))
    (while (re-search-forward "^@c \\(\\(?:sm\\)?ex\\) \\(\\S-+\\): \\(.*\\)" nil t)
      (let ((section (match-string 1))
            (example-name (match-string 2))
            (command (match-string 3)) expanded-command
            (data-file ledger-sample-doc-path)
            input output)
        (goto-char (match-end 0))
        (forward-line)
        (when (looking-at "@\\(\\(?:small\\)?example\\)")
          (let ((beg (point)))
            (re-search-forward "^@end \\(\\(?:small\\)?example\\)")
            (delete-region beg (1+ (point)))))

        (when (let ((case-fold-search nil))
                (string-match " -f \\$\\([-a-z]+\\)" command))
          (let ((label (match-string 1 command)))
            (setq command (replace-match "" t t command))
            (save-excursion
              (goto-char (point-min))
              (search-forward (format "@c data: %s" label))
              (re-search-forward "@\\(\\(?:small\\)?example\\)")
              (forward-line)
              (let ((beg (point)))
                (re-search-forward "@end \\(\\(?:small\\)?example\\)")
                (setq data-file (ledger-texi-write-test-data
                                 (format "%s.dat" label)
                                 (buffer-substring-no-properties
                                  beg (match-beginning 0))))))))

        (let ((section-name (if (string= section "smex")
                                "smallexample"
                              "example"))
              (output (ledger-texi-invoke-command
                       (ledger-texi-expand-command command data-file))))
          (insert "@" section-name ?\n output
                  "@end " section-name ?\n))

        ;; Update the regression test associated with this example
        (ledger-texi-write-test example-name command input output
                                "../test/manual")))))

(provide 'ldg-texi)