Mercurial > public > mercurial-scm > hg

diff mercurial/templater.py @ 40935:4591c9791a82

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
templatefuncs: specialize "no match" value of search() to allow % operation If Python had Maybe or Option, the type of the search() result would be Option<Mapping>, which can be considered as a 0/1 container of a Mapping. So it makes sense that {search(r'no match pattern', x) % "whatever"} is mapped to an empty string.
author Yuya Nishihara <yuya@tcha.org>
date Wed, 12 Dec 2018 22:45:02 +0900
parents ff8b2886c492
children 2372284d9457
line wrap: on
line diff
--- a/mercurial/templater.py	Wed Dec 12 22:19:57 2018 +0900
+++ b/mercurial/templater.py	Wed Dec 12 22:45:02 2018 +0900
@@ -53,6 +53,10 @@
     represents a single mapping (i.e. a dict), which may have default output
     format.
 
+mappingnone
+    represents None of Optional[mappable], which will be mapped to an empty
+    string by % operation.
+
 mappedgenerator
     a lazily-evaluated list of byte strings, which is e.g. a result of %
     operation.