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author | Boris Kolpackov <boris@codesynthesis.com> | 2020-07-14 07:22:04 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2020-07-14 07:22:04 +0200 |
commit | 73ddd73a19f2353e71a0dddf93f2c85473a713db (patch) | |
tree | 1a77896ac6a3b6f65506689092823106f37ec245 /doc | |
parent | 1ac548e25144f13215401dfecbbd588a73324720 (diff) |
Add another note on wildcards inside eval context
Diffstat (limited to 'doc')
-rw-r--r-- | doc/manual.cli | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/doc/manual.cli b/doc/manual.cli index e15cfa8..5b54882 100644 --- a/doc/manual.cli +++ b/doc/manual.cli @@ -3575,9 +3575,21 @@ well as \c{[]} but only in certain contexts (see \l{#attributes Attributes} for details). If instead we need these characters to appear literally as part of the value, then we either have to \i{escape} or \i{quote} them. -\N|Additionally, \c{*?[} will be treated as wildcards in name patterns. Note -that this treatment can only be inhibited with quoting and not escaping. See -\l{#name-patterns Name Patterns} for details.| +\N|Additionally, \c{*?[} will be treated as wildcards in name patterns (see +\l{#name-patterns Name Patterns} for details). Note that this treatment can +only be inhibited with quoting and not escaping. + +While name patterns are recognized inside evaluation contexts, in certain +cases the \c{?[} characters are treated as part of the ternary operator and +value subscript, respectively. In such case, to be treat as wildcards rather +than as syntax, these characters have to be escaped, for example: + +\ +x = (foo.\?xx) +y = ($foo\[123].txt) +\ + +| To escape a special character, we prefix it with a backslash (\c{\\}; to specify a literal backslash double it). For example: |