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-rw-r--r--doc/aerc-config.5.scd11
1 files changed, 10 insertions, 1 deletions
diff --git a/doc/aerc-config.5.scd b/doc/aerc-config.5.scd
index b26d7695..60fc5b7f 100644
--- a/doc/aerc-config.5.scd
+++ b/doc/aerc-config.5.scd
@@ -906,7 +906,8 @@ filter which matches the part's MIME type will be used, so order them from most
to least specific. You can also match on non-MIME types, by prefixing with the
header to match against (non-case-sensitive) and a comma, e.g. _subject,text_
will match a subject which contains _text_. Use _header,~regex_ to match
-against a _regex_.
+against a _regex_. Using _.filename_ instead of a header will match against the
+filename of an attachment.
Note that aerc will pipe the content into the configured filter program, so
filters need to be able to read from standard input. Many programs support
@@ -1080,6 +1081,14 @@ _image/\*_
image/\*=catimg -w$(tput cols) -
```
+_.filename,~<regexp>_
+ Match <regexp> against the filename of an attachment, e.g. to split
+ csv-s into columns:
+
+ ```
+ .filename,~.*\.csv=column -t --separator=","
+ ```
+
See the wiki at https://man.sr.ht/~rjarry/aerc/ for more examples and possible
customizations of the built-in filters.