allenap / shell-quote Goto Github PK
View Code? Open in Web Editor NEWA Rust library for shell quoting strings, e.g. for interpolating into a Bash script. This is not as simple as most people think!
License: Apache License 2.0
A Rust library for shell quoting strings, e.g. for interpolating into a Bash script. This is not as simple as most people think!
License: Apache License 2.0
Windows do have BASH Shell. So I think this crate could be useful there. I also want to use this crate in my cross-platform application.
Hi, thanks for the great library!
I've noticed that some strings are unnecessarily quoted for ANSI-C escape sequences. This seems to happen on strings that contain an equal sign. For example, the string --arg=var
will be quoted as $'--arg=var'
. This is valid and doesn't cause any issues, but it does appear to be unnecessary.
I wasn't familiar with this style of quoting. It is covered in the bash docs here:
3.1.2.4 ANSI-C Quoting
Character sequences of the form $’string’ are treated as a special kind of single quotes. The sequence expands to string, with backslash-escaped characters in string replaced as specified by the ANSI C standard. Backslash escape sequences, if present, are decoded as follows:
\a
alert (bell)\b
backspace
...
The expanded result is single-quoted, as if the dollar sign had not been present.
(source)
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