1 !:folding=indent:collapseFolds=1:
5 ! Copyright (C) 2003, 2004 Slava Pestov.
7 ! Redistribution and use in source and binary forms, with or without
8 ! modification, are permitted provided that the following conditions are met:
10 ! 1. Redistributions of source code must retain the above copyright notice,
11 ! this list of conditions and the following disclaimer.
13 ! 2. Redistributions in binary form must reproduce the above copyright notice,
14 ! this list of conditions and the following disclaimer in the documentation
15 ! and/or other materials provided with the distribution.
17 ! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
18 ! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
19 ! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
20 ! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 ! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 ! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 ! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 ! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25 ! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
26 ! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 : append@ ( [ list ] var -- )
35 #! Append a proper list stored in a variable with another
36 #! list, storing the result back in the variable.
37 #! given variable using 'append'.
38 tuck get swap append put ;
40 : add@ ( elem var -- )
41 #! Add an element at the end of a proper list stored in a
42 #! variable, storing the result back in the variable.
43 tuck get swap add put ;
46 #! Prepend x to the list stored in var.
49 : remove@ ( obj var -- )
50 #! Remove all occurrences of the object from the list
51 #! stored in the variable.
54 : unique@ ( elem var -- )
55 #! Prepend an element to the proper list stored in a
56 #! variable if it is not already contained in the list.
60 #! Begin constructing a list.
61 <namespace> >n f "list-buffer" set ;
64 #! Append an object to the currently constructing list.
68 #! Append each element to the currently constructing list.
72 #! Finish constructing a list and push it on the stack.
73 "list-buffer" get nreverse n> drop ;