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hush: fix handling of empty arguments

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function                                             old     new   delta
builtin_exec                                          25      83     +58
parse_stream                                        2242    2261     +19
run_pipe                                            1782    1787      +5
static.pseudo_null_str                                 -       3      +3
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(add/remove: 1/0 grow/shrink: 3/0 up/down: 85/0)               Total: 85 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2009-10-18 11:46:35 +02:00
parent 7673e7fda4
commit f37eb3999b
5 changed files with 62 additions and 19 deletions
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8
shell/hush_test/hush-psubst/emptytick.tests
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@@ -1,16 +1,20 @@
true; ``; echo $?
false; ``; echo $?
# UNFIXED BUG. bash sets $? to 127:
true; `""`; echo $?
# bash sets $? to 127:
false; `""`; echo $?
true; ` `; echo $?
false; ` `; echo $?
true; $(); echo $?
false; $(); echo $?
# bash sets $? to 127:
true; $(""); echo $?
# bash sets $? to 127:
false; $(""); echo $?
true; $( ); echo $?
false; $( ); echo $?
true; exec ''; echo $?
false; exec ''; echo $?
exec ''; echo $?
echo Not reached