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manpage: explain when properties are expanded

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Guido Cella 2021-07-23 20:00:02 +02:00 committed by avih
parent 6fe4fc4593
commit ecd06a5d01
1 changed files with 13 additions and 3 deletions
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DOCS/man/input.rst
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@ -183,7 +183,8 @@ surrogate pair escapes, should be a safe subset that can be used.
Note that argument parsing and property expansion happen at different stages. Note that argument parsing and property expansion happen at different stages.
First, arguments are determined as described above, and then, where applicable, First, arguments are determined as described above, and then, where applicable,
properties are expanded - regardless of argument quoting. However, expansion properties are expanded - regardless of argument quoting. However, expansion
can still be prevented with ``$>``. See `Property Expansion`_. can still be prevented with the ``raw`` prefix or ``$>``. See `Input Command
Prefixes`_ and `Property Expansion`_.
Commands specified as arrays Commands specified as arrays
---------------------------- ----------------------------
@ -206,6 +207,9 @@ quotes and escaping. The array command APIs mentioned above pass strings
directly to the argument parsers, or can sidestep them by the ability to pass directly to the argument parsers, or can sidestep them by the ability to pass
non-string values. non-string values.
Property expansion is disabled by default for these APIs. This can be changed
with the ``expand-properties`` prefix. See `Input Command Prefixes`_.
Sometimes commands have string arguments, that in turn are actually parsed by Sometimes commands have string arguments, that in turn are actually parsed by
other components (e.g. filter strings with ``vf add``) - in these cases, you other components (e.g. filter strings with ``vf add``) - in these cases, you
you would have to double-escape in input.conf, but not with the array APIs. you would have to double-escape in input.conf, but not with the array APIs.
@ -232,6 +236,9 @@ to use APIs that pass arguments as arrays.
Named arguments are not supported in the "flat" input.conf syntax, which means Named arguments are not supported in the "flat" input.conf syntax, which means
you cannot use them for key bindings in input.conf at all. you cannot use them for key bindings in input.conf at all.
Property expansion is disabled by default for these APIs. This can be changed
with the ``expand-properties`` prefix. See `Input Command Prefixes`_.
List of Input Commands List of Input Commands
---------------------- ----------------------
@ -3450,8 +3457,11 @@ command is an exception and not a general rule.)
``i show-text "Filename: ${filename}"`` ``i show-text "Filename: ${filename}"``
shows the filename of the current file when pressing the ``i`` key shows the filename of the current file when pressing the ``i`` key
Within ``input.conf``, property expansion can be inhibited by putting the Whether property expansion is enabled by default depends on which API is used
``raw`` prefix in front of commands. (see `Flat command syntax`_, `Commands specified as arrays`_ and `Named
arguments`_), but it can always be enabled with the ``expand-properties``
prefix or disabled with the ``raw`` prefix, as described in `Input Command
Prefixes`_.
The following expansions are supported: The following expansions are supported: