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bug#11378: 24.1.50; Suggestion: Let M-i in isearch cycle `search-invisib

From: Juri Linkov
Subject: bug#11378: 24.1.50; Suggestion: Let M-i in isearch cycle `search-invisible'
Date: Fri, 15 Feb 2013 11:22:50 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (x86_64-pc-linux-gnu)

> There is one remaining question:
> do we still need a filter for visible text?

I tend to conclude that a filter for visible text is not needed,
because to handle the value of `search-invisible' correctly
this filter should reside in `isearch-filter-predicates' permanently
that makes little sense.

This assumes that the variable `search-invisible' is not going to be
marked obsolete in favor of filters.  Only in this case filters would
make sense that will require two separate filters: one to just skip
hidden text (implementing the current value `nil' of `search-invisible'),
another filter to open hidden overlays (implementing the value `open' of
`search-invisible'), and no filter means the value `t' of `search-invisible'.

Otherwise, searching in hidden text should handle the variable
`search-invisible' without using filters.

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