bug#56103: [PATCH] whitespace: Redraw if indentation or line length changes

[Richard Hansen]

Attached patch:

    whitespace: Redraw if indentation or line length changes

    * lisp/whitespace.el (whitespace-color-on): Convert the indentation
    matcher from a static regular expression to a function so that changes
    to `indent-tabs-mode' and `tab-width' are picked up the next time
    `font-lock-flush' runs.
    (whitespace--indentation-matcher): The new function matcher.
    (whitespace--variable-watcher): New variable watcher that calls
    `font-lock-flush' if `whitespace-mode' is enabled for the buffer.
    (whitespace--watched-vars): List of variables to watch.
    (whitespace-unload-function): Un-watch the variables.

0001-whitespace-Redraw-if-indentation-or-line-length-chan.patch
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