Line break behavior is different from xargs

[robario]

$ echo -ne "1\n\n2\n\n" | xargs printf '[%s]'
[1][2]

$ echo -ne "1\n\n2\n\n" | xpanes printf '[%s]'

# will open 4 panes, expected 2 panes

[greymd]

It is not difficult to fix this issue soon, but it will most likely be resolved with another issue (#24) at the same time.
As the design direction of tmux-xpanes, I will try to implement the tokenization logic same as xargs as possible (It might be version 2.1.0).

Stay tuned :)

(Or, welcome any pull requests.)

[greymd]

memo
It seems that xargs skips some characters in IFS.

$ echo -n "$IFS" | od -tx1c
0000000  20  09  0a  00
             \t  \n  \0
0000004

Not only line breaks, but also space and tab.

$ echo -ne "aa\n\n\t  \t\n\nbb" | xargs printf "[%s]"
[aa][bb]

NUL character causes warning message.

$ echo -ne "aa\n\n\t  \t\0\n\nbb" | xargs printf "[%s]"
xargs: WARNING: a NUL character occurred in the input.  It cannot be passed through in the argument list.  Did you mean to use the --null option?
[aa][][bb]% 

$ echo $?
0

[greymd]

Fixed with v2.1.0.

$ echo -ne "1\n\n2\n\n" | xargs printf '[%s]'

Now will generate

root@e08434b0b7ba:/# printf [%s] 1             |root@e08434b0b7ba:/# printf [%s] 2                   
[1]root@e08434b0b7ba:/#                        |[2]root@e08434b0b7ba:/#                              
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@robario plz check it out.

[robario]

👍 perfect! @greymd