The backspace escape b in elixir isn't working












4















The backspace escape




From my experience in C




iex> IO.puts("Hello Worbldb!")


should actually return 



"Hello Wol!"


With this it means that the b actually backspaced the character that came before it.
So I tried to do this same thing in elixir and got a different output with the same.
The output is as follows
Output as per my entries



"Hello World!"



This happens the same in escaping for a new line. n
Please help.. Trying to solve a kata here.
Other characters that escape are as follows



a BEL (0x07) 

b BS (0x08)

d DEL (0x7f)

e ESC (0x1b) 

f FF (0x0c)

n NL (0x0a)

r CR (0x0d) 

s SP (0x20)

t TAB (0x09)

v VT (0x0b) 

uhhh 1–6 hex digits 

xhh 2 hex digits





elixir escapestring







share|improve this question























  • One solution would be to use regex, but I'm more interested in finding out why it doesn't work when it should.

    – Sheharyar
    Nov 16 '18 at 21:59
















4















The backspace escape




From my experience in C




iex> IO.puts("Hello Worbldb!")


should actually return 



"Hello Wol!"


With this it means that the b actually backspaced the character that came before it.
So I tried to do this same thing in elixir and got a different output with the same.
The output is as follows
Output as per my entries



"Hello World!"



This happens the same in escaping for a new line. n
Please help.. Trying to solve a kata here.
Other characters that escape are as follows



a BEL (0x07) 

b BS (0x08)

d DEL (0x7f)

e ESC (0x1b) 

f FF (0x0c)

n NL (0x0a)

r CR (0x0d) 

s SP (0x20)

t TAB (0x09)

v VT (0x0b) 

uhhh 1–6 hex digits 

xhh 2 hex digits





elixir escapestring







share|improve this question























  • One solution would be to use regex, but I'm more interested in finding out why it doesn't work when it should.

    – Sheharyar
    Nov 16 '18 at 21:59














4












4








4








The backspace escape




From my experience in C




iex> IO.puts("Hello Worbldb!")


should actually return 



"Hello Wol!"


With this it means that the b actually backspaced the character that came before it.
So I tried to do this same thing in elixir and got a different output with the same.
The output is as follows
Output as per my entries



"Hello World!"



This happens the same in escaping for a new line. n
Please help.. Trying to solve a kata here.
Other characters that escape are as follows



a BEL (0x07) 

b BS (0x08)

d DEL (0x7f)

e ESC (0x1b) 

f FF (0x0c)

n NL (0x0a)

r CR (0x0d) 

s SP (0x20)

t TAB (0x09)

v VT (0x0b) 

uhhh 1–6 hex digits 

xhh 2 hex digits





elixir escapestring







share|improve this question














The backspace escape




From my experience in C




iex> IO.puts("Hello Worbldb!")


should actually return 



"Hello Wol!"


With this it means that the b actually backspaced the character that came before it.
So I tried to do this same thing in elixir and got a different output with the same.
The output is as follows
Output as per my entries



"Hello World!"



This happens the same in escaping for a new line. n
Please help.. Trying to solve a kata here.
Other characters that escape are as follows



a BEL (0x07) 

b BS (0x08)

d DEL (0x7f)

e ESC (0x1b) 

f FF (0x0c)

n NL (0x0a)

r CR (0x0d) 

s SP (0x20)

t TAB (0x09)

v VT (0x0b) 

uhhh 1–6 hex digits 

xhh 2 hex digits





elixir escapestring




elixir escapestring






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 16 '18 at 21:36









Krafty CoderKrafty Coder

234




234













  • One solution would be to use regex, but I'm more interested in finding out why it doesn't work when it should.

    – Sheharyar
    Nov 16 '18 at 21:59



















  • One solution would be to use regex, but I'm more interested in finding out why it doesn't work when it should.

    – Sheharyar
    Nov 16 '18 at 21:59

















One solution would be to use regex, but I'm more interested in finding out why it doesn't work when it should.

– Sheharyar
Nov 16 '18 at 21:59





One solution would be to use regex, but I'm more interested in finding out why it doesn't work when it should.

– Sheharyar
Nov 16 '18 at 21:59












1 Answer
1






active

oldest

votes


















4














Erlang console erl, iex, is built on the top of, plays dirty tricks with the standard input and output.



Use :stderr to print your string, it’s untouched by erl driver:



iex|1 ▶ IO.puts(:stderr, "Hello Worbldb!")

Hello Wol!


If you have the code in the file/project that is run with mix or directly as elixir my_file.ex everything will obviously work for any standard output.






share|improve this answer


























  • Interesting that it works with stderr as expected but not stdout

    – Sheharyar
    Nov 17 '18 at 10:19











  • I kinda explained why.

    – Aleksei Matiushkin
    Nov 17 '18 at 11:01











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









4














Erlang console erl, iex, is built on the top of, plays dirty tricks with the standard input and output.



Use :stderr to print your string, it’s untouched by erl driver:



iex|1 ▶ IO.puts(:stderr, "Hello Worbldb!")

Hello Wol!


If you have the code in the file/project that is run with mix or directly as elixir my_file.ex everything will obviously work for any standard output.






share|improve this answer


























  • Interesting that it works with stderr as expected but not stdout

    – Sheharyar
    Nov 17 '18 at 10:19











  • I kinda explained why.

    – Aleksei Matiushkin
    Nov 17 '18 at 11:01
















4














Erlang console erl, iex, is built on the top of, plays dirty tricks with the standard input and output.



Use :stderr to print your string, it’s untouched by erl driver:



iex|1 ▶ IO.puts(:stderr, "Hello Worbldb!")

Hello Wol!


If you have the code in the file/project that is run with mix or directly as elixir my_file.ex everything will obviously work for any standard output.






share|improve this answer


























  • Interesting that it works with stderr as expected but not stdout

    – Sheharyar
    Nov 17 '18 at 10:19











  • I kinda explained why.

    – Aleksei Matiushkin
    Nov 17 '18 at 11:01














4












4








4







Erlang console erl, iex, is built on the top of, plays dirty tricks with the standard input and output.



Use :stderr to print your string, it’s untouched by erl driver:



iex|1 ▶ IO.puts(:stderr, "Hello Worbldb!")

Hello Wol!


If you have the code in the file/project that is run with mix or directly as elixir my_file.ex everything will obviously work for any standard output.






share|improve this answer















Erlang console erl, iex, is built on the top of, plays dirty tricks with the standard input and output.



Use :stderr to print your string, it’s untouched by erl driver:



iex|1 ▶ IO.puts(:stderr, "Hello Worbldb!")

Hello Wol!


If you have the code in the file/project that is run with mix or directly as elixir my_file.ex everything will obviously work for any standard output.







share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 17 '18 at 6:45

























answered Nov 17 '18 at 6:06









Aleksei MatiushkinAleksei Matiushkin

81k95491




81k95491













  • Interesting that it works with stderr as expected but not stdout

    – Sheharyar
    Nov 17 '18 at 10:19











  • I kinda explained why.

    – Aleksei Matiushkin
    Nov 17 '18 at 11:01



















  • Interesting that it works with stderr as expected but not stdout

    – Sheharyar
    Nov 17 '18 at 10:19











  • I kinda explained why.

    – Aleksei Matiushkin
    Nov 17 '18 at 11:01

















Interesting that it works with stderr as expected but not stdout

– Sheharyar
Nov 17 '18 at 10:19





Interesting that it works with stderr as expected but not stdout

– Sheharyar
Nov 17 '18 at 10:19













I kinda explained why.

– Aleksei Matiushkin
Nov 17 '18 at 11:01





I kinda explained why.

– Aleksei Matiushkin
Nov 17 '18 at 11:01


















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