f629aa28d9
implement noclobber. From Ben Harris, with minor tweaks from me. Two
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unimplemented comments to go. Go Ben!
2002-05-15 16:33:35 +00:00
8b449b1ee8
enami convinced me that it is a good idea to use the first word of
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the allocated area.
2002-02-20 21:42:35 +00:00
6c02afd8c4
Since we should be able to handle nested double quotes, don't use
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the syntax maps to determine the beginning and end quotes (kill
CENDQUOTE). Handle single quotes opening and closing via checking
the current syntax map. Keep a bitmap of doublequote state one bit
per variable nesting level. For the first 32 nested double quotes,
we don't need any additional memory, but for more we allocate
dynamically.
2002-02-12 20:32:35 +00:00
79f9ab6771
back this directory up a day, systems won't even boot (rc.subr splodes)
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suggested back-to-the-drawing-board test: $ echo "${PWD:-notlikely}"
2002-02-12 06:39:10 +00:00
f63e9a1ed6
PR/15579: Alan Barrett: }'s inside variable specs were taken into account
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even if quoted:
foo=${foo:-"'{}'"}; echo $foo
would display '{'} instead of '{}'.
2002-02-11 18:57:19 +00:00
0598afe4d0
Fix switch alias handling. Inspired from FreeBSD, but corrected to handle
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alias expansion inside the switch as appropriate. This is achieved by a
flag noalias which is turned on and off in as we parse. In the following
example [1] and [0] indicate the value of noalias.
[0] case <expr> in
[1] <lit> ) [0] <expr> ;;
[1] <lit> ) [0] <expr> ;;
...
[1] esac [0]
FreeBSD does:
[0] case <expr> in [1]
<lit> ) <expr> ;;
<lit> ) <expr> ;;
...
esac [0]
This handles the following shell script:
alias a=ls
case $1 in
a) echo a;
a;;
f) echo f;;
*) echo default;;
esac
2001-11-02 23:49:14 +00:00
ea8e5cf90b
PR/12533: Koji Mori: eval gets misparsed when it has a trailing semi-colon.
2001-04-03 15:00:11 +00:00
3380980447
remove redundant declarations and nexted externs.
2001-02-04 19:52:06 +00:00
2a1ee59131
un-__P functions declared in parser.h. host programs include parser.h,
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and so it shouldn't use __P. (this should probably be done better, by
not declaring the parser functions in headers used by host programs,
but this works well enough.)
2000-07-27 04:09:27 +00:00
d6ac7627ea
Fix bin/9184, bin/9194, bin/9265, bin/9266
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Exitcode and negation problems (From Martin Husemann)
2000-01-27 23:39:38 +00:00
3d42469030
compile with WARNS = 2
1999-07-09 03:05:49 +00:00
6e50d7a816
PR/4966: Joel Reicher: Implement <> redirections which are documented in
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the man page.
1999-02-04 16:17:39 +00:00
1fbf0781c6
Patches from Tor Egge (via Havard Eidnes) to fix various bugs in field
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splitting and combining.
(Note: Some of this are not strictly bugs, but differences between traditional
Bourne shell and POSIX.)
1999-01-25 14:20:56 +00:00
ef88b5d2bd
Fixed memory leak on old style command substitution
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such as sh -c 'echo `echo foo`' .
The memory allocated with ckmalloc() at
parser.c:1349:readtoken1() (search for "done:" label)
was never freed.
I changed this to use 'string stack' framework of Ash.
Note that a string on string stack is properly freed on
exception and end of command parsing, and no explicit free
or signal handlings required.
See TOUR for an overview, and memalloc.[ch] for details
of string stack.
1998-09-26 20:56:33 +00:00
ee9e50eacb
Be more retentive about use of NOTREACHED and noreturn.
1998-07-28 11:41:40 +00:00
a26bae1e08
- change "extern" variables into int's
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- remove extern'd variables not actually referenced
- don't use char as an array index
1998-03-29 04:41:43 +00:00
1eb178df64
Fix Sparcworks warnings.
1997-07-15 17:45:53 +00:00
cd799663e4
Fix compiler warnings.
1997-07-04 21:01:48 +00:00
7accaec421
NO_HISTORY->SMALL
1997-03-14 01:42:18 +00:00
6f224ae59f
Fix parsing problem introduced in the previous ${10} fix, where $#digit
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or $digit# would get mis-parsed as a positional parameter.
1997-01-26 18:05:34 +00:00
3d5f212ba8
enable parsing of multi-digit positional arguments i.e. ${10} works and it
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is not a bad substitution.
1997-01-24 17:15:56 +00:00
48250187e6
kill 'register'
1997-01-11 02:04:27 +00:00
340077b543
- fix parsing bug reported by mycroft: ! was only recognized in the beginning
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of pipelines. Now we are recognizing it everywhere like ksh, so:
! if [ a = b ]; then ! echo c && ! true; else ! echo d; fi
works.
1996-11-25 20:22:00 +00:00
d8c242f0ae
PR/2808: - detect eof inside backquotes
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- handle && and || shortcircuits properly
- tokens.def -> tokens.h
(from FreeBSD)
1996-10-16 14:53:23 +00:00
55a41e8abb
Close PR/2384 backquoted backslash-newline was not eaten.
1996-05-09 19:40:08 +00:00
b09ffc42b1
- parser.c: Fix prompting in old style backquote expansion. Fixes PR/2139
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and many user complaints why the shell hangs in echo "`"
- eval.c: Fix exitstatus invalid resetting in `if' statements were:
if (exit 3); then
echo foo $?
else
echo bar $?
fi
printed 'bar 0' instead of bar 3
1996-03-05 21:03:52 +00:00
893ade3fac
- fix PR1620, -DNO_HISTORY did not work.
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- restore parsing state after parsing old style command substitution.
The ';' in '`echo z;`' broke the following:
for i in 1; do
cat > /dev/tty << __EOF__
`echo z;`
__EOF__
done
cVS: Enter Log. Lines beginning with `CVS: ' are removed automatically
1995-10-19 04:14:37 +00:00
56a08eccca
Fixed bug where ${#} was interpreted incorrectly as ${#var} and thus
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misparsed. Keith Bostic reported it.
1995-05-17 00:05:25 +00:00
07bae7eddd
Merge in my changes from vangogh, and fix the x=`false`; echo $? == 0
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bug.
1995-05-11 21:28:33 +00:00
49f0ad8601
convert to new RCS id conventions.
1995-03-21 09:01:59 +00:00
ad8d5369f5
I added the documented in the manual but not implemented variable expansions:
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${#WORD}
${WORD%PAT}
${WORD%%PAT}
${WORD#PAT}
${WORD##PAT}
1995-01-23 06:33:03 +00:00
4ce0d34a31
clean up further. more patches from Jim Jegers
1994-12-05 19:07:32 +00:00
06f53b6838
Eliminate uses of some obsolete functions.
1994-09-23 11:28:39 +00:00
08a6730054
Fix a core dump and another parse error related to null commands.
1994-08-24 05:48:26 +00:00
aaed410145
Fix some problems with empty commands.
1994-07-07 20:53:32 +00:00
918ce04f57
From Christos:
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1. Fix `-' quoting in [ ] expressions.
2. Fix expansion of variables in redirections
1994-06-14 05:49:19 +00:00
cafd1f7e9f
Add RCS ids.
1994-06-11 16:11:35 +00:00
20ddd6eee4
Fixed another case statement parsing bug that was introduced by my
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last fix :-(. Thanks to Theo for letting me know about it...
1994-06-01 21:36:54 +00:00
d8e5937418
Re-worked case statement parsing. With luck, this fixes bug #268 .
1994-05-30 20:05:40 +00:00
242337bcae
a few more things to omit when NO_HISTORY defined. from noel@cs.oberlin.edu
1994-05-21 01:42:30 +00:00
1af99404cd
Fix backslash parsing within backquoted string
1994-05-17 10:47:50 +00:00
83b8a2f413
Mark Weaver's background/list fix (for bug #236 )
1994-05-11 17:39:11 +00:00
37ed7877b2
sync with 4.4lite
1994-05-11 17:09:42 +00:00
7f42c5de51
from jim wilson: (command): Handle TEOF like TNL.
1993-09-09 01:21:43 +00:00
f0e18400d3
Make `>file;' work.
1993-09-06 00:44:46 +00:00
8542364e07
Add RCS identifiers.
1993-08-01 18:49:50 +00:00
6659413c9a
Another change from Jim Wilson.
1993-07-15 22:12:02 +00:00
67893cfee5
IEEE 1003.2 (D11.2.2.3) requires that the system's true and false be accessed
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instead of searching $PATH. The best way to satisfy this requirement is to
make them builtins.
True was allready builtin, this patch adds false.
1993-07-07 01:11:56 +00:00
5916a08554
Jim "wilson@moria.cygnus.com" Wilson's patches to make C News (and other
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things) work.
1993-05-02 01:28:40 +00:00
2d12aa06fa
Fixed incorrect calls to longjmp.
1993-04-26 22:07:46 +00:00
christos