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authorBrad King <brad.king@kitware.com>2018-10-16 15:03:08 (GMT)
committerBrad King <brad.king@kitware.com>2018-10-16 15:03:08 (GMT)
commitab0edaabccc16bb568974051ee1e50b10993874a (patch)
tree03ab2cd390dc4c338db04878314337a77a6d6b96 /Help/manual
parenteca87ee811a86a54a3e0bc27a29ea07ff9276ab7 (diff)
parent82a48226107e2ee0d073eaf521750c8354b67e41 (diff)
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Merge branch 'document-dollar-in-varnames' into release-3.13
Merge-request: !2479
Diffstat (limited to 'Help/manual')
-rw-r--r--Help/manual/cmake-language.7.rst5
1 files changed, 3 insertions, 2 deletions
diff --git a/Help/manual/cmake-language.7.rst b/Help/manual/cmake-language.7.rst
index 591f73d..71649ba 100644
--- a/Help/manual/cmake-language.7.rst
+++ b/Help/manual/cmake-language.7.rst
@@ -391,8 +391,9 @@ inside out, e.g. ``${outer_${inner_variable}_variable}``.
Literal variable references may consist of alphanumeric characters,
the characters ``/_.+-``, and `Escape Sequences`_. Nested references
-may be used to evaluate variables of any name. (See also policy
-:policy:`CMP0053` documentation for historical considerations.)
+may be used to evaluate variables of any name. See also policy
+:policy:`CMP0053` documentation for historical considerations and reasons why
+the ``$`` is also technically permitted but is discouraged.
The `Variables`_ section documents the scope of variable names
and how their values are set.