newbie: raw multiline string?

[mcgru]

How can i put a multiline part of bash script into string variable?
Is it possible to use a kinda:
s:=r"""
echo asdasdasd
| grep qweqwe
| grep zxczxc
"""
?

BTW, i've tried to use a code:

import os
e:=$embed_file('script.sh')
s:=e.to_string()
c:=os.execute(s)
print(c.output)

and it gave me an error: sh: 45: Syntax error: redirection unexpected
How can i set up /bin/bash to be used in os.execute()?

[JalonSolov]

All strings in V can be multi-line strings - there is no special syntax needed. Just hit ENTER where appropriate.

s := r'
echo asdasdasd
| grep qweqwe
| grep zxczxc
'

[koplenov]

but

s := r'
echo "asdasdasd"
| grep 'qweqwe'
| grep zxczxc
'

get error

[Wajinn]

It looks like you are using the quotes incorrectly. If you use the single quote marks '...' for the variable, then use the double quote marks "..." for the text or vica versa.

s := r'
echo "asdasdasd"
| grep "qweqwe"
| grep zxczxc
'
println(s)

[JalonSolov]

How are you using the string?

[JalonSolov]

Using @mcgru 's last example, but correcting it to a full program as well as fixing the quoting issue...

import os

s := r'
echo "asdasdasdqwezxc" \
| grep "qwe" \
| grep zxc
'
c:=os.execute(s)
print(c.output)

runs fine, with the following output:

$ v run x.v
asdasdasdqwezxc
$

[mcgru]

OK! so what about "raw multiline string"?
i would like to write something like:

rms := r"""
  echo "qweasdzxc" \
  | grep 'asd' \
  | grep zxc
"""
//// or
//rms2 := r%(
// ...
//)
print(rms)
// and then
c:=os.execute(rms)

and see this working :)
is it possible?
is it worth to be implemented?

[JalonSolov]

The r in front of a string makes it a raw string. There is no need for extra quotes. Also, as I said, all strings in V can be multi-line, just by hitting ENTER where appropriate... exactly as in most of the examples here, other than the ones of yours using """.

The only thing different in your examples is being able to freely use " or ' inside the string without escaping it. I don't see enough utility added, compared to the greater complexity added to parsing.

For example, this slight variation on your example works fine:

import os

rms := r'
  echo "qweasdzxc" \
  | grep "asd" \
  | grep zxc
'
//// or
//rms2 := r%(
// ...
//)
print(rms)
// and then
c:=os.execute(rms)

though it does give a warning on the last line: "warning: unused variable: c"

[mcgru]

Imagine i need to paste in that "raw multiline string" not 3 lines, but 333, with a lot of ' and " in it...

OK, now the only way is - to paste this "raw multiline string" into file and use $embed_file("that-file") on it. then we'll have got what i needed. So it is not a big problem to me. I've just wanted to know if there is r"""...""" case to use.