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Be better about bounds-checking, #'subseq, #'fill; add same, #'reduce.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* fns.c (Fsubseq):
Change the string code to better fit in with the rest of this
function (it still uses get_string_range_char(), though, which *may*
diverge algorithmically from what we're doing).
If dealing with a cons, only call #'length if we have reason to
believe that the START and END arguments are badly specified, and
check for circular lists ourselves when that's appropriate.
If dealing with a vector, call Fvector() on the appropriate subset
of the old vector's data directly, don't initialise the result
with nil and then copy.
(Ffill):
Only check the range arguments for a cons SEQUENCE if we have good
reason to think they were badly specified.
(Freduce):
Handle multiple values properly. Add bounds checking to this
function, as specificied by ANSI Common Lisp.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Thu, 16 Sep 2010 18:46:05 +0100 |
| parents | 3ecd8885ac67 |
| children |
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\input /home/gd/gnu/doc/texinfo.tex @c -*-texinfo-*- @c %**start of header @setfilename ../../info/back-cover @settitle XEmacs Lisp Reference Manual @c %**end of header . @sp 7 @center @titlefont {XEmacs Lisp} @sp 1 @quotation Most of the XEmacs text editor is written in the programming language called XEmacs Lisp. You can write new code in XEmacs Lisp and install it as an extension to the editor. However, XEmacs Lisp is more than a mere ``extension language''; it is a full computer programming language in its own right. You can use it as you would any other programming language. Because XEmacs Lisp is designed for use in an editor, it has special features for scanning and parsing text as well as features for handling files, buffers, displays, subprocesses, and so on. XEmacs Lisp is closely integrated with the editing facilities; thus, editing commands are functions that can also conveniently be called from Lisp programs, and parameters for customization are ordinary Lisp variables. This manual describes XEmacs Lisp. Generally speaking, the earlier chapters describe features of XEmacs Lisp that have counterparts in many programming languages, and later chapters describe features that are peculiar to XEmacs Lisp or relate specifically to editing. @end quotation @hfil @bye