xref: /freebsd/stand/ficl/softwords/ficlclass.fr (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c)
1\ #if (FICL_WANT_OOP)
2\ ** ficl/softwords/ficlclass.fr
3\ Classes to model ficl data structures in objects
4\ This is a demo!
5\ John Sadler 14 Sep 1998
6\
7\ ** C - W O R D
8\ Models a FICL_WORD
9\
10\ $FreeBSD$
11
12object subclass c-word
13    c-word     ref: .link
14    c-2byte    obj: .hashcode
15    c-byte     obj: .flags
16    c-byte     obj: .nName
17    c-bytePtr  obj: .pName
18    c-cellPtr  obj: .pCode
19    c-4byte    obj: .param0
20
21    \ Push word's name...
22    : get-name   ( inst class -- c-addr u )
23        2dup
24        my=[ .pName get-ptr ] -rot
25        my=[ .nName get ]
26    ;
27
28    : next   ( inst class -- link-inst class )
29        my=> .link ;
30
31    : ?
32        ." c-word: "
33        2dup --> get-name type cr
34    ;
35
36end-class
37
38\ ** C - W O R D L I S T
39\ Models a FICL_HASH
40\ Example of use:
41\ get-current c-wordlist --> ref current
42\ current --> ?
43\ current --> .hash --> ?
44\ current --> .hash --> next --> ?
45
46object subclass c-wordlist
47    c-wordlist ref: .parent
48    c-ptr      obj: .name
49    c-cell     obj: .size
50    c-word     ref: .hash   ( first entry in hash table )
51
52    : ?
53        --> get-name ." ficl wordlist "  type cr ;
54    : push  drop  >search ;
55    : pop   2drop previous ;
56    : set-current   drop set-current ;
57    : get-name   drop wid-get-name ;
58    : words   { 2:this -- }
59        this my=[ .size get ] 0 do
60            i this my=[ .hash index ]  ( 2list-head )
61            begin
62                2dup --> get-name type space
63                --> next over
64            0= until 2drop cr
65        loop
66    ;
67end-class
68
69\ : named-wid  wordlist postpone c-wordlist  metaclass => ref ;
70
71
72\ ** C - F I C L S T A C K
73object subclass c-ficlstack
74    c-4byte    obj: .nCells
75    c-cellPtr  obj: .link
76    c-cellPtr  obj: .sp
77    c-4byte    obj: .stackBase
78
79    : init   2drop ;
80    : ?      2drop
81        ." ficl stack " cr ;
82    : top
83        --> .sp --> .addr --> prev --> get ;
84end-class
85
86\ #endif
87