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40 Commits

Author SHA1 Message Date
itohy ef88b5d2bd Fixed memory leak on old style command substitution 
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
mycroft ee9e50eacb Be more retentive about use of NOTREACHED and noreturn. 1998-07-28 11:41:40 +00:00
mrg a26bae1e08 - change "extern" variables into int's 
- remove extern'd variables not actually referenced
- don't use char as an array index
 1998-03-29 04:41:43 +00:00
christos 1eb178df64 Fix Sparcworks warnings. 1997-07-15 17:45:53 +00:00
christos cd799663e4 Fix compiler warnings. 1997-07-04 21:01:48 +00:00
christos 7accaec421 NO_HISTORY->SMALL 1997-03-14 01:42:18 +00:00
christos 6f224ae59f Fix parsing problem introduced in the previous ${10} fix, where $#digit 
or $digit# would get mis-parsed as a positional parameter.
 1997-01-26 18:05:34 +00:00
christos 3d5f212ba8 enable parsing of multi-digit positional arguments i.e. ${10} works and it 
is not a bad substitution.
 1997-01-24 17:15:56 +00:00
tls 48250187e6 kill 'register' 1997-01-11 02:04:27 +00:00
christos 340077b543 - fix parsing bug reported by mycroft: ! was only recognized in the beginning 
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
christos d8c242f0ae PR/2808: - detect eof inside backquotes 
- handle && and || shortcircuits properly
	 - tokens.def -> tokens.h
	 (from FreeBSD)
 1996-10-16 14:53:23 +00:00
christos 55a41e8abb Close PR/2384 backquoted backslash-newline was not eaten. 1996-05-09 19:40:08 +00:00
christos b09ffc42b1 - parser.c: Fix prompting in old style backquote expansion. Fixes PR/2139 
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
christos 893ade3fac - fix PR1620, -DNO_HISTORY did not work. 
- 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
christos 56a08eccca Fixed bug where ${#} was interpreted incorrectly as ${#var} and thus 
misparsed. Keith Bostic reported it.
 1995-05-17 00:05:25 +00:00
christos 07bae7eddd Merge in my changes from vangogh, and fix the x=`false`; echo $? == 0 
bug.
 1995-05-11 21:28:33 +00:00
cgd 49f0ad8601 convert to new RCS id conventions. 1995-03-21 09:01:59 +00:00
christos ad8d5369f5 I added the documented in the manual but not implemented variable expansions: 
${#WORD}
    ${WORD%PAT}
    ${WORD%%PAT}
    ${WORD#PAT}
    ${WORD##PAT}
 1995-01-23 06:33:03 +00:00
cgd 4ce0d34a31 clean up further. more patches from Jim Jegers 1994-12-05 19:07:32 +00:00
mycroft 06f53b6838 Eliminate uses of some obsolete functions. 1994-09-23 11:28:39 +00:00
mycroft 08a6730054 Fix a core dump and another parse error related to null commands. 1994-08-24 05:48:26 +00:00
mycroft aaed410145 Fix some problems with empty commands. 1994-07-07 20:53:32 +00:00
jtc 918ce04f57 From Christos: 
1. Fix `-' quoting in [ ] expressions.
  2. Fix expansion of variables in redirections
 1994-06-14 05:49:19 +00:00
mycroft cafd1f7e9f Add RCS ids. 1994-06-11 16:11:35 +00:00
jtc 20ddd6eee4 Fixed another case statement parsing bug that was introduced by my 
last fix :-(.  Thanks to Theo for letting me know about it...
 1994-06-01 21:36:54 +00:00
jtc d8e5937418 Re-worked case statement parsing. With luck, this fixes bug #268. 1994-05-30 20:05:40 +00:00
cgd 242337bcae a few more things to omit when NO_HISTORY defined. from noel@cs.oberlin.edu 1994-05-21 01:42:30 +00:00
jtc 1af99404cd Fix backslash parsing within backquoted string 1994-05-17 10:47:50 +00:00
jtc 83b8a2f413 Mark Weaver's background/list fix (for bug #236) 1994-05-11 17:39:11 +00:00
jtc 37ed7877b2 sync with 4.4lite 1994-05-11 17:09:42 +00:00
cgd 7f42c5de51 from jim wilson: (command): Handle TEOF like TNL. 1993-09-09 01:21:43 +00:00
mycroft f0e18400d3 Make `>file;' work. 1993-09-06 00:44:46 +00:00
mycroft 8542364e07 Add RCS identifiers. 1993-08-01 18:49:50 +00:00
jtc 6659413c9a Another change from Jim Wilson. 1993-07-15 22:12:02 +00:00
jtc 67893cfee5 IEEE 1003.2 (D11.2.2.3) requires that the system's true and false be accessed 
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
sef 5916a08554 Jim "wilson@moria.cygnus.com" Wilson's patches to make C News (and other 
things) work.
 1993-05-02 01:28:40 +00:00
dpassage 2d12aa06fa Fixed incorrect calls to longjmp. 1993-04-26 22:07:46 +00:00
cgd 06be60083d changed "Id" to "Header" for rcsids 1993-03-23 00:22:59 +00:00
cgd 346aa5dd48 added rcs ids to all files 1993-03-22 08:04:00 +00:00
cgd 61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00