cpython/Misc/editline-fix

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Subject: Problems trying to use readline or editline ...
From: Skip Montanaro <skip@dolphin.automatrix.com>
To: python-list@cwi.nl
Date: 19 Nov 1995 14:19:56 GMT
X-Newsgroups: comp.lang.python
X-Organization: Automatrix, Inc.
I'm having some trouble with either of the line editing libraries available
to me. If I build Python with libreadline, I get "staircases" in my
interpreter output:
>>> s = 1
>>> a = 3
>>> etc.
So I figured I'd give Rich Salz's editline a try. It seems to be missing a
couple readline functions. When I link I get:
myreadline.o: Undefined symbol _rl_insert referenced from text segment
myreadline.o: Undefined symbol _rl_bind_key referenced from text segment
I'm running on BSD/OS 2.0 with GCC 2.6.3 as the compiler. My configure line
was
./configure --with-readline=/home/dolphin/skip/src/editline \
--with-dl-dld=/home/dolphin/skip/src/dl-dld,/home/dolphin/skip/src/dld
For editline I tried several things before arriving at something that does
work ... sort of. First I commented out the tab key binding in Python's
Parser/myreadline.c then had to fiddle with editline.c to get tabs to
insert. The diffs below seem to work, but have no notion of tab stops (I
like 4-char tab stops).
I'd be grateful if anybody had a solution to the readline staircases or a
better solution for making editline work.
*** editline.c~ Tue Nov 15 08:53:01 1994
--- editline.c Sun Nov 19 09:15:16 1995
***************
*** 142,145 ****
--- 142,148 ----
TTYput('?');
}
+ else if (c == '\t') {
+ TTYput('\t');
+ }
else if (ISCTL(c)) {
TTYput('^');
***************
*** 1326,1329 ****
--- 1329,1338 ----
}
+ STATIC STATUS
+ tab()
+ {
+ return insert_char('\t');
+ }
+
STATIC KEYMAP Map[33] = {
{ CTL('@'), ring_bell },
***************
*** 1335,1339 ****
{ CTL('G'), ring_bell },
{ CTL('H'), bk_del_char },
! { CTL('I'), c_complete },
{ CTL('J'), accept_line },
{ CTL('K'), kill_line },
--- 1344,1348 ----
{ CTL('G'), ring_bell },
{ CTL('H'), bk_del_char },
! { CTL('I'), tab },
{ CTL('J'), accept_line },
{ CTL('K'), kill_line },
--
Skip Montanaro skip@automatrix.com (518)372-5583
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