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This adds string-x.rst for each subcommand x of string. The main page (string.rst) is not changed, except that examples are shown directly after each subcommand. The subcommand sections in string.rst are created by textual inclusion of parts of the string-x.rst files. Subcommand man pages can be viewed with either of: ``` man string collect man string-collect string collect <press F1 or Alt-h> string collect -h ``` While `string -h ...` still prints the full help. Closes #5968
47 lines
1.8 KiB
ReStructuredText
47 lines
1.8 KiB
ReStructuredText
string-escape - escape special characters
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=========================================
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Synopsis
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--------
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.. BEGIN SYNOPSIS
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::
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string escape [(-n | --no-quoted)] [--style=xxx] [STRING...]
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string unescape [--style=xxx] [STRING...]
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.. END SYNOPSIS
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Description
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-----------
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.. BEGIN DESCRIPTION
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``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.
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``--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.
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``--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.
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``--style=regex`` escapes an input string for literal matching within a regex expression. The string is first converted to UTF-8 before being encoded.
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``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``.
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.. END DESCRIPTION
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Examples
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--------
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.. BEGIN EXAMPLES
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::
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>_ echo \\x07 | string escape
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cg
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>_ string escape --style=var 'a1 b2'\\u6161
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a1_20b2__c_E6_85_A1
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.. END EXAMPLES
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