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ash: fix for read $IFS splitting. Closes bug 235

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-01-08 15:44:07 +01:00
parent c3c1fb676b
commit 8cd04d1cb6
3 changed files with 21 additions and 15 deletions
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2
shell/ash.c
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@ -12615,7 +12615,7 @@ readcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
#endif
status = 0;
startword = 2;
startword = 1;
backslash = 0;
#if ENABLE_ASH_READ_TIMEOUT
if (timeout) /* NB: ensuring end_ms is nonzero */

17
shell/ash_test/ash-read/read_ifs.right
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@ -1,7 +1,10 @@
.a. .b. .c.
.a. .b. .c.
.a. .. .b,c.
.a. .. .b,c.
.a. .. .c.
.a. .. .c. .d.
.a. .. .b,c,d , ,.
test 1: .a. .b. .c.
test 2: .a. .b. .c.
test 3: .a. .. .b,c.
test 4: .a. .. .b,c.
test 5: .a. .. .c.
test 6: .a. .. .c. .d.
test 7: .a. .. .b,c,d , ,.
test 8: .. .a. .b. .c.
test 9: .a. .b. .c. ..
test A: .. .a. .. .b. .c.

17
shell/ash_test/ash-read/read_ifs.tests
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@ -1,7 +1,10 @@
printf 'a\t\tb\tc\n' | ( IFS=$(printf "\t") read a b c; echo ".$a. .$b. .$c." )
printf 'a\t\tb\tc\n' | ( IFS=$(printf " \t") read a b c; echo ".$a. .$b. .$c." )
printf 'a,,b,c\n' | ( IFS="," read a b c; echo ".$a. .$b. .$c." )
printf 'a,,b,c\n' | ( IFS=" ," read a b c; echo ".$a. .$b. .$c." )
printf 'a ,, c\n' | ( IFS=" ," read a b c; echo ".$a. .$b. .$c." )
printf 'a ,, c d\n' | ( IFS=" ," read a b c d; echo ".$a. .$b. .$c. .$d." )
printf ' a,,b,c,d , ,\n' | ( IFS=" ," read a b c; echo ".$a. .$b. .$c." )
printf 'a\t\tb\tc\n' | ( IFS=$(printf "\t") read a b c; echo "test 1: .$a. .$b. .$c." )
printf 'a\t\tb\tc\n' | ( IFS=$(printf " \t") read a b c; echo "test 2: .$a. .$b. .$c." )
printf 'a,,b,c\n' | ( IFS="," read a b c; echo "test 3: .$a. .$b. .$c." )
printf 'a,,b,c\n' | ( IFS=" ," read a b c; echo "test 4: .$a. .$b. .$c." )
printf 'a ,, c\n' | ( IFS=" ," read a b c; echo "test 5: .$a. .$b. .$c." )
printf 'a ,, c d\n' | ( IFS=" ," read a b c d; echo "test 6: .$a. .$b. .$c. .$d." )
printf ' a,,b,c,d , ,\n' | ( IFS=" ," read a b c; echo "test 7: .$a. .$b. .$c." )
printf '\t,\ta\t,\tb\tc' | ( IFS=$(printf " \t,") read a b c d; echo "test 8: .$a. .$b. .$c. .$d." )
printf '\t\ta\t,\tb\tc' | ( IFS=$(printf " \t,") read a b c d; echo "test 9: .$a. .$b. .$c. .$d." )
printf '\t,\ta\t,,\tb\tc' | ( IFS=$(printf " \t,") read a b c d e; echo "test A: .$a. .$b. .$c. .$d. .$e." )