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Bug #12710
closed"a string X".index("a string") Fails with Ruby 2.2.3p173
Status:
Rejected
Assignee:
-
Target version:
-
ruby -v:
ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux]
Description
The test case:
#!/usr/bin/env ruby
s_0=`cd ..;pwd`.to_s
s_1=`cd . ;pwd`.to_s
x_0=s_1.index(s_0)
puts("s_0=="+s_0)
puts("s_1=="+s_1)
puts("x_0=="+x_0.to_s)
puts("x_0.class=="+x_0.class.to_s)
# The console output:
#
=begin
s_0==/home/ts2/tmp/xx10/aa AA
s_1==/home/ts2/tmp/xx10/aa AA/bb BB
x_0==
x_0.class==NilClass
=end
#
# The "ruby -v" gives:
=begin
ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux]
=end
Files
Updated by martin_vahi (Martin Vahi) about 8 years ago
Interestingly, if the first s_0 assignment
of the Ruby script is changed to
s_0="X"+`cd ..;pwd`.to_s[0..(-2)]
then it seems to work.
Updated by lucasbuchala (Lucas Buchala) about 8 years ago
Isn't there a newline character at the end of string returned by shell quotes?
I think that's the reason the .index method will not find the substring.
If you don't want the newline, you can do something like:
`cmd ...`.chomp
So, probably, not a bug.
Updated by nobu (Nobuyoshi Nakada) about 8 years ago
- Status changed from Open to Rejected
You can see invisible characters with p
method or puts s_0.inspect
.
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