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\section contains contains - test if a word is present in a list
\subsection contains-synopsis Synopsis
\fish{synopsis}
contains [OPTIONS] KEY [VALUES...]
\endfish
\subsection contains-description Description
`contains` tests whether the set `VALUES` contains the string `KEY`. If so, `contains` exits with status 0; if not, it exits with status 1.
The following options are available:
- `-i` or `--index` print the word index
Note that, like GNU tools, `contains` interprets all arguments starting with a `-` as options to contains, until it reaches an argument that is `--` (two dashes). See the examples below.
\subsection contains-example Example
\fish
for i in ~/bin /usr/local/bin
if not contains $i $PATH
set PATH $PATH $i
end
end
\endfish
The above code tests if `~/bin` and `/usr/local/bin` are in the path and adds them if not.
\fish
function hasargs
if contains -- -q $argv
echo '$argv contains a -q option'
end
end
\endfish
The above code checks for `-q` in the argument list, using the `--` argument to demarcate options to `contains` from the key to search for.
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