simonb
6f6fe2f3ad
Spell occurred correctly.
2001-04-25 02:33:08 +00:00
christos
a66a2e0ad0
remove redundant declaration of yyparse
2001-02-04 19:51:14 +00:00
jdolecek
5888f4d21c
add a hack to properly handle '--' as first argument -
...
it's ignored if it would cause syntax error, otherwise treated as common
string; this is so that both 'expr -- : .' and 'expr -- foo : .' works
This addresses standards/11230 by Ben Harris.
while here, make all global variables but main() static, use const more
2000-10-30 14:55:02 +00:00
thorpej
401ea1afda
The "&" operator has a higer precedence than "|".
2000-10-29 17:16:02 +00:00
jdolecek
c13c5901f2
also credit J.T. Conklin in copyright message
2000-10-27 21:40:02 +00:00
jdolecek
fb2525abf5
fix operator precedence - | or & have lower priority than
...
arithmetic operations, compare, or :
This should fix bin/11318 by Love <lha@stacken.kth.se>
2000-10-26 23:10:21 +00:00
jdolecek
fd6eeb2e1d
in regexp handling code, fix the format passed to asprintf() to be
...
actually in intended form - use "%.*s" and not incorrect "%*s"
Bug found by Launey Thomas <ljt@alum.mit.edu> and reported in private e-mail.
2000-09-29 17:49:21 +00:00
jdolecek
a82fc402d8
Fix bug in regexp handling, caused not quite complete conversion
...
from old expr.c. This fixes PR # 11060.
While here, convert the code to use asprintf() instead of strdup()
followed by truncating of new string and move definition of errstr
to block where it's used.
2000-09-21 20:32:24 +00:00
jdolecek
3a4441e3d4
reimplement expr using lexical parser generated by yacc
...
highlights:
* / is treated correctly depending upon context (addresses PR # 10995)
* use 64 bit arithmetic, so expr is able to process integer values from
-(2**63) to (2**63 - 1)
* checks for integer over- & underflows added
* error messages improved, more error checking added
add AUTHOR section to manpage
add BUGS section, and mention possible drawbacks with other expr implementations
XXX the old expr treated empty string in arithmetic expressions as if it was 0
XXX this behaviour has been retained
2000-09-19 17:20:00 +00:00
mycroft
abe60a1e07
Clean up deleted files.
1994-07-16 00:17:15 +00:00
cgd
00dc18214f
don't forget a cast, and thereby fix the regexp problems on big-endian machines
1994-07-10 23:51:11 +00:00
jtc
bff56be25a
Fix insignificant memory leak.
1993-11-16 23:08:49 +00:00
jtc
d143e6f175
Allow expressions like "expr 'ABC' : '^.*$' to work as is done in other
...
expr implementations.
1993-10-04 21:57:27 +00:00
jtc
74b68a49cf
Fix grammar to eliminate support for unary minus expressions -- they
...
weren't supported, they aren't standard, and they caused expr to dump
core.
1993-09-14 22:45:57 +00:00
jtc
3ed5680e46
Use err() routine for error messages.
...
If string does not match \( \) subexpression, return a null string.
1993-08-17 16:01:23 +00:00
jtc
e9c8ee33b0
expr is supposed to do string comparisons using the locale specific
...
collation sequence, so use strcoll instead of strcmp.
1993-08-16 23:20:22 +00:00
jtc
6a320fc0a3
Now truely POSIX 1003.2 (D11.2) compliant.
1993-07-20 01:10:55 +00:00
jtc
aabfaec2f5
Don't coerce strings to int in comparisons.
1993-07-20 00:52:57 +00:00
jtc
476e1b5964
integer arguments were not coerced to strings for the `:' operator.
...
bad things: core dumps, etc. will happen if integer values make it
up the parse tree.
1993-07-20 00:29:41 +00:00
jtc
68028dc2de
Updated to POSIX regular expression routines.
...
(Previous checkin was aborted by stray ^C)
1993-06-14 19:59:07 +00:00
cgd
ac2edf58ea
update for latest version of patches from jtconklin@kaleida.com
1993-06-05 22:25:44 +00:00
cgd
a5668e87e6
added J.T. Conklin's changes to get parens working fine, etc.
1993-03-23 20:19:35 +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
