mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-11-29 04:46:19 +08:00
4bc6b36bed
There are a number of items which don't fit cleanly into the styles used in the synopses, and have been left alone.
48 lines
1.8 KiB
ReStructuredText
48 lines
1.8 KiB
ReStructuredText
string-escape - escape special characters
|
|
=========================================
|
|
|
|
Synopsis
|
|
--------
|
|
|
|
.. BEGIN SYNOPSIS
|
|
|
|
.. synopsis::
|
|
|
|
string escape [-n | --no-quoted] [--style=] [STRING ...]
|
|
string unescape [--style=] [STRING ...]
|
|
|
|
.. END SYNOPSIS
|
|
|
|
Description
|
|
-----------
|
|
|
|
.. BEGIN DESCRIPTION
|
|
|
|
``string escape`` escapes each *STRING* in one of three ways. The first is **--style=script**. This is the default. It alters the string such that it can be passed back to ``eval`` to produce the original argument again. By default, all special characters are escaped, and quotes are used to simplify the output when possible. If **-n** or **--no-quoted** is given, the simplifying quoted format is not used. Exit status: 0 if at least one string was escaped, or 1 otherwise.
|
|
|
|
**--style=var** ensures the string can be used as a variable name by hex encoding any non-alphanumeric characters. The string is first converted to UTF-8 before being encoded.
|
|
|
|
**--style=url** ensures the string can be used as a URL by hex encoding any character which is not legal in a URL. The string is first converted to UTF-8 before being encoded.
|
|
|
|
**--style=regex** escapes an input string for literal matching within a regex expression. The string is first converted to UTF-8 before being encoded.
|
|
|
|
``string unescape`` performs the inverse of the ``string escape`` command. If the string to be unescaped is not properly formatted it is ignored. For example, doing ``string unescape --style=var (string escape --style=var $str)`` will return the original string. There is no support for unescaping **--style=regex**.
|
|
|
|
.. END DESCRIPTION
|
|
|
|
Examples
|
|
--------
|
|
|
|
.. BEGIN EXAMPLES
|
|
|
|
::
|
|
|
|
>_ echo \x07 | string escape
|
|
\cg
|
|
|
|
>_ string escape --style=var 'a1 b2'\u6161
|
|
a1_20_b2_E6_85_A1_
|
|
|
|
|
|
.. END EXAMPLES
|