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docs/cmds/string: Fix lists

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sphinx _really_ likes its empty lines before lists!

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Fabian Homborg 2019-03-29 20:12:28 +01:00
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sphinx_doc_src/cmds/string.rst
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@ -177,6 +177,7 @@ Both the ``match`` and ``replace`` subcommand support regular expressions when u
In general, special characters are special by default, so ``a+`` matches one or more "a"s, while ``a\+`` matches an "a" and then a "+". ``(a+)`` matches one or more "a"s in a capturing group (``(?:XXXX)`` denotes a non-capturing group). For the replacement parameter of ``replace``, ``$n`` refers to the n-th group of the match. In the match parameter, ``\n`` (e.g. ``\1``) refers back to groups. In general, special characters are special by default, so ``a+`` matches one or more "a"s, while ``a\+`` matches an "a" and then a "+". ``(a+)`` matches one or more "a"s in a capturing group (``(?:XXXX)`` denotes a non-capturing group). For the replacement parameter of ``replace``, ``$n`` refers to the n-th group of the match. In the match parameter, ``\n`` (e.g. ``\1``) refers back to groups.
Some features include repetitions: Some features include repetitions:
- ``*`` refers to 0 or more repetitions of the previous expression - ``*`` refers to 0 or more repetitions of the previous expression
- ``+`` 1 or more - ``+`` 1 or more
- ``?`` 0 or 1. - ``?`` 0 or 1.
@ -185,6 +186,7 @@ Some features include repetitions:
- ``{n,}`` n or more - ``{n,}`` n or more
Character classes, some of the more important: Character classes, some of the more important:
- ``.`` any character except newline - ``.`` any character except newline
- ``\d`` a decimal digit and ``\D``, not a decimal digit - ``\d`` a decimal digit and ``\D``, not a decimal digit
- ``\s`` whitespace and ``\S``, not whitespace - ``\s`` whitespace and ``\S``, not whitespace
@ -210,12 +212,14 @@ Character classes, some of the more important:
- ``[[:xdigit:]]`` : "hexadecimal digit" - ``[[:xdigit:]]`` : "hexadecimal digit"
Groups: Groups:
- ``(...)`` is a capturing group - ``(...)`` is a capturing group
- ``(?:...)`` is a non-capturing group - ``(?:...)`` is a non-capturing group
- ``\n`` is a backreference (where n is the number of the group, starting with 1) - ``\n`` is a backreference (where n is the number of the group, starting with 1)
- ``$n`` is a reference from the replacement expression to a group in the match expression. - ``$n`` is a reference from the replacement expression to a group in the match expression.
And some other things: And some other things:
- ``\b`` denotes a word boundary, ``\B`` is not a word boundary. - ``\b`` denotes a word boundary, ``\B`` is not a word boundary.
- ``^`` is the start of the string or line, ``$`` the end. - ``^`` is the start of the string or line, ``$`` the end.
- ``|`` is "alternation", i.e. the "or". - ``|`` is "alternation", i.e. the "or".