blob: b0fa2d0fe76cc411730bf6f2b38d48aa7179e46e (
about) (
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
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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
;*=====================================================================*/
;* serrano/prgm/project/skribe/src/common/lib.scm */
;* ------------------------------------------------------------- */
;* Author : Manuel Serrano */
;* Creation : Wed Sep 10 11:57:54 2003 */
;* Last change : Wed Oct 27 12:16:40 2004 (eg) */
;* Copyright : 2003-04 Manuel Serrano */
;* ------------------------------------------------------------- */
;* The Scheme independent lib part. */
;* ------------------------------------------------------------- */
;* Implementation: @label lib@ */
;* bigloo: @path ../bigloo/lib.bgl@ */
;*=====================================================================*/
;*---------------------------------------------------------------------*/
;* engine-custom-add! ... */
;*---------------------------------------------------------------------*/
(define (engine-custom-add! e id val)
(let ((old (engine-custom e id)))
(if (unspecified? old)
(engine-custom-set! e id (list val))
(engine-custom-set! e id (cons val old)))))
;*---------------------------------------------------------------------*/
;* find-markup-ident ... */
;*---------------------------------------------------------------------*/
(define (find-markup-ident ident)
(let ((r (find-markups ident)))
(if (or (pair? r) (null? r))
r
'())))
;*---------------------------------------------------------------------*/
;* container-search-down ... */
;*---------------------------------------------------------------------*/
(define (container-search-down pred obj)
(with-debug 4 'container-search-down
(debug-item "obj=" (find-runtime-type obj))
(let loop ((obj (markup-body obj)))
(cond
((pair? obj)
(apply append (map (lambda (o) (loop o)) obj)))
((container? obj)
(let ((rest (loop (markup-body obj))))
(if (pred obj)
(cons obj rest)
rest)))
((pred obj)
(list obj))
(else
'())))))
;*---------------------------------------------------------------------*/
;* search-down ... */
;*---------------------------------------------------------------------*/
(define (search-down pred obj)
(with-debug 4 'search-down
(debug-item "obj=" (find-runtime-type obj))
(let loop ((obj (markup-body obj)))
(cond
((pair? obj)
(apply append (map (lambda (o) (loop o)) obj)))
((markup? obj)
(let ((rest (loop (markup-body obj))))
(if (pred obj)
(cons obj rest)
rest)))
((pred obj)
(list obj))
(else
'())))))
;*---------------------------------------------------------------------*/
;* find-down ... */
;*---------------------------------------------------------------------*/
(define (find-down pred obj)
(with-debug 4 'find-down
(debug-item "obj=" (find-runtime-type obj))
(let loop ((obj obj))
(cond
((pair? obj)
(apply append (map (lambda (o) (loop o)) obj)))
((markup? obj)
(debug-item "loop=" (find-runtime-type obj)
" " (markup-ident obj))
(if (pred obj)
(list (cons obj (loop (markup-body obj))))
'()))
(else
(if (pred obj)
(list obj)
'()))))))
;*---------------------------------------------------------------------*/
;* find1-down ... */
;*---------------------------------------------------------------------*/
(define (find1-down pred obj)
(with-debug 4 'find1-down
(let loop ((obj obj)
(stack '()))
(debug-item "obj=" (find-runtime-type obj)
" " (if (markup? obj) (markup-markup obj) "???")
" " (if (markup? obj) (markup-ident obj) ""))
(cond
((memq obj stack)
(skribe-error 'find1-down "Illegal cyclic object" obj))
((pair? obj)
(let liip ((obj obj))
(cond
((null? obj)
#f)
(else
(or (loop (car obj) (cons obj stack))
(liip (cdr obj)))))))
((pred obj)
obj)
((markup? obj)
(loop (markup-body obj) (cons obj stack)))
(else
#f)))))
;*---------------------------------------------------------------------*/
;* find-up ... */
;*---------------------------------------------------------------------*/
(define (find-up pred obj)
(let loop ((obj obj)
(res '()))
(cond
((not (ast? obj))
res)
((pred obj)
(loop (ast-parent obj) (cons obj res)))
(else
(loop (ast-parent obj) (cons obj res))))))
;*---------------------------------------------------------------------*/
;* find1-up ... */
;*---------------------------------------------------------------------*/
(define (find1-up pred obj)
(let loop ((obj obj))
(cond
((not (ast? obj))
#f)
((pred obj)
obj)
(else
(loop (ast-parent obj))))))
;*---------------------------------------------------------------------*/
;* ast-document ... */
;*---------------------------------------------------------------------*/
(define (ast-document m)
(find1-up document? m))
;*---------------------------------------------------------------------*/
;* ast-chapter ... */
;*---------------------------------------------------------------------*/
(define (ast-chapter m)
(find1-up (lambda (n) (is-markup? n 'chapter)) m))
;*---------------------------------------------------------------------*/
;* ast-section ... */
;*---------------------------------------------------------------------*/
(define (ast-section m)
(find1-up (lambda (n) (is-markup? n 'section)) m))
;*---------------------------------------------------------------------*/
;* the-body ... */
;* ------------------------------------------------------------- */
;* Filter out the options */
;*---------------------------------------------------------------------*/
(define (the-body opt+)
(let loop ((opt* opt+)
(res '()))
(cond
((null? opt*)
(reverse! res))
((not (pair? opt*))
(skribe-error 'the-body "Illegal body" opt*))
((keyword? (car opt*))
(if (null? (cdr opt*))
(skribe-error 'the-body "Illegal option" (car opt*))
(loop (cddr opt*) res)))
(else
(loop (cdr opt*) (cons (car opt*) res))))))
;*---------------------------------------------------------------------*/
;* the-options ... */
;* ------------------------------------------------------------- */
;* Returns an list made of options. The OUT argument contains */
;* keywords that are filtered out. */
;*---------------------------------------------------------------------*/
(define (the-options opt+ . out)
(let loop ((opt* opt+)
(res '()))
(cond
((null? opt*)
(reverse! res))
((not (pair? opt*))
(skribe-error 'the-options "Illegal options" opt*))
((keyword? (car opt*))
(cond
((null? (cdr opt*))
(skribe-error 'the-options "Illegal option" (car opt*)))
((memq (car opt*) out)
(loop (cdr opt*) res))
(else
(loop (cdr opt*)
(cons (list (car opt*) (cadr opt*)) res)))))
(else
(loop (cdr opt*) res)))))
;*---------------------------------------------------------------------*/
;* list-split ... */
;*---------------------------------------------------------------------*/
(define (list-split l num . fill)
(let loop ((l l)
(i 0)
(acc '())
(res '()))
(cond
((null? l)
(reverse! (cons (if (or (null? fill) (= i num))
(reverse! acc)
(append! (reverse! acc)
(make-list (- num i) (car fill))))
res)))
((= i num)
(loop l
0
'()
(cons (reverse! acc) res)))
(else
(loop (cdr l)
(+ i 1)
(cons (car l) acc)
res)))))
|
