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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
;;; easycrypt-syntax.el --- Syntax definitions for EasyCrypt mode
;; --------------------------------------------------------------------
;; Copyright (c) - 2012--2016 - IMDEA Software Institute
;; Copyright (c) - 2012--2016 - Inria
;;
;; Distributed under the terms of the GPL-v3 license
;; --------------------------------------------------------------------
;;; Commentary:
;;
(require 'proof-syntax)
(require 'easycrypt-keywords)
(require 'easycrypt-hooks)
;;; Code:
(defconst easycrypt-id "[A-Za-z_]+")
(defconst easycrypt-terminal-string ".")
(defconst easycrypt-command-end-regexp "[^\\.]\\.\\(\\s \\|\n\\|$\\)")
(defconst easycrypt-keywords-proof-goal '("lemma" "equiv" "hoare" "realize"))
(defconst easycrypt-keywords-proof-save '("save" "qed"))
(defconst easycrypt-non-undoables-regexp "^pragma\\b")
(defconst easycrypt-keywords-code-open '("{"))
(defconst easycrypt-keywords-code-close '("}"))
(defconst easycrypt-keywords-code-end '(";"))
(defvar easycrypt-other-symbols "\\(\\.\\.\\|\\[\\]\\)")
(defvar easycrypt-operator-char-1 "=\\|<\\|>\\|~")
(defvar easycrypt-operator-char-2 "\\+\\|\\-")
(defvar easycrypt-operator-char-3 "\\*\\|/\\|%")
(defvar easycrypt-operator-char-4 "!\\|\\$\\|&\\|\\?\\|@\\|\\^\\|:\\||\\|#")
(defvar easycrypt-operator-char-1234
(concat "\\(" easycrypt-operator-char-1
"\\|" easycrypt-operator-char-2
"\\|" easycrypt-operator-char-3
"\\|" easycrypt-operator-char-4
"\\)"))
(defconst easycrypt-proof-save-regexp
(concat "^\\(" (proof-ids-to-regexp easycrypt-keywords-proof-save) "\\)\\b"))
(defconst easycrypt-goal-command-regexp
(concat "^\\(?:local\\s-+\\)?\\(?:" (proof-ids-to-regexp easycrypt-keywords-proof-goal) "\\)"
"\\s-+\\(?:nosmt\\s-+\\)?\\(\\sw+\\)"))
(defun easycrypt-save-command-p (span str)
"Decide whether argument is a [save|qed] command or not."
(let ((txt (or (span-property span 'cmd) "")))
(proof-string-match-safe easycrypt-proof-save-regexp txt)))
(defun easycrypt-goal-command-p (span)
"Is SPAN a goal start?"
(let ((txt (or (span-property span 'cmd) "")))
(proof-string-match-safe easycrypt-goal-command-regexp txt)))
(defun easycrypt-init-output-syntax-table ()
"Set appropriate values for syntax table for EasyCrypt output."
(modify-syntax-entry ?, " ")
(modify-syntax-entry ?\' "_")
(modify-syntax-entry ?_ "_")
;; For comments
(modify-syntax-entry ?\* ". 23")
;; For blocks
(modify-syntax-entry ?\( "()1")
(modify-syntax-entry ?\) ")(4")
(modify-syntax-entry ?\{ "(}")
(modify-syntax-entry ?\} "){")
(modify-syntax-entry ?\[ "(]")
(modify-syntax-entry ?\] ")["))
;; ----- regular expressions
(defvar easycrypt-error-regexp "^\\[error-[0-9]+-[0-9]+\\]\\|^anomaly"
"A regexp indicating that the EasyCrypt process has identified an error.")
(defvar easycrypt-shell-proof-completed-regexp "No more goals"
"*Regular expression indicating that the proof has been completed.")
(defconst easycrypt-any-command-regexp
;; allow terminator to be considered as command start:
;; FIXME: really needs change in generic function to take account of this,
;; since the end character of a command is not the start
(concat "\\(\\s(\\|\\s)\\|\\sw\\|\\s \\|\\s_\\)*=" ;match assignments
"\\|;;\\|;\\|"
(proof-ids-to-regexp easycrypt-global-keywords))
"Regexp matching any EasyCrypt command start or the terminator character.")
(defconst easycrypt-keywords-indent-open
(append (append '("local") easycrypt-keywords-proof-goal)
easycrypt-keywords-code-open))
(defconst easycrypt-keywords-indent-close
(append easycrypt-keywords-proof-save
easycrypt-keywords-code-close))
(defconst easycrypt-keywords-indent-enclose
(append easycrypt-keywords-code-open
easycrypt-keywords-code-close
easycrypt-keywords-code-end
easycrypt-keywords-proof-goal
easycrypt-keywords-proof-save))
; Regular expression for indentation
(defconst easycrypt-indent-any-regexp
(proof-regexp-alt easycrypt-any-command-regexp "\\s(" "\\s)"))
(defconst easycrypt-indent-enclose-regexp
(proof-regexp-alt (proof-ids-to-regexp easycrypt-keywords-indent-enclose) "\\s)"))
(defconst easycrypt-indent-open-regexp
(proof-regexp-alt (proof-ids-to-regexp easycrypt-keywords-indent-open) "\\s("))
(defconst easycrypt-indent-close-regexp
(proof-regexp-alt (proof-ids-to-regexp easycrypt-keywords-indent-close) "\\s)"))
(defface easycrypt-tactics-closing-face
(proof-face-specs
(:foreground "red")
(:foreground "red")
())
"Face for names of closing tactics in proof scripts."
:group 'proof-faces)
(defface easycrypt-tactics-dangerous-face
(proof-face-specs
(:background "red")
(:background "red")
())
"Face for names of dangerous tactics in proof scripts."
:group 'proof-faces)
(defface easycrypt-tactics-tacticals-face
(proof-face-specs
(:foreground "dark green")
(:foreground "dark green")
())
"Face for names of tacticals in proof scripts."
:group 'proof-faces)
(defconst easycrypt-tactics-closing-face 'easycrypt-tactics-closing-face)
(defconst easycrypt-tactics-dangerous-face 'easycrypt-tactics-dangerous-face)
(defconst easycrypt-tactics-tacticals-face 'easycrypt-tactics-tacticals-face)
(defvar easycrypt-font-lock-keywords
(list
(cons (proof-ids-to-regexp easycrypt-global-keywords) 'font-lock-keyword-face)
(cons (proof-ids-to-regexp easycrypt-tactic-keywords) 'proof-tactics-name-face)
(cons (proof-ids-to-regexp easycrypt-tactical-keywords) 'easycrypt-tactics-tacticals-face)
(cons (proof-ids-to-regexp easycrypt-bytac-keywords) 'easycrypt-tactics-closing-face)
(cons (proof-ids-to-regexp easycrypt-dangerous-keywords) 'easycrypt-tactics-dangerous-face)
(cons (proof-ids-to-regexp easycrypt-prog-keywords) 'font-lock-keyword-face)
(cons (concat easycrypt-operator-char-1234 "+") 'font-lock-type-face)
(cons easycrypt-other-symbols 'font-lock-type-face)))
(defun easycrypt-init-syntax-table ()
"Set appropriate values for syntax table in current buffer."
(modify-syntax-entry ?\$ ".")
(modify-syntax-entry ?\/ ".")
(modify-syntax-entry ?\\ ".")
(modify-syntax-entry ?+ ".")
(modify-syntax-entry ?- ".")
(modify-syntax-entry ?= ".")
(modify-syntax-entry ?% ".")
(modify-syntax-entry ?< ".")
(modify-syntax-entry ?> ".")
(modify-syntax-entry ?\& ".")
(modify-syntax-entry ?_ "_")
(modify-syntax-entry ?\' "_")
(modify-syntax-entry ?\| ".")
(modify-syntax-entry ?\. ".")
(modify-syntax-entry ?\* ". 23n")
(modify-syntax-entry ?\( "()1")
(modify-syntax-entry ?\) ")(4"))
(provide 'easycrypt-syntax)
;;; easycrypt-syntax.el ends here
|
