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Add documentation about support for negative indices

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axel 2006-06-04 19:42:03 +10:00
parent e7e3e8ee74
commit cf35a8e3a5
2 changed files with 10 additions and 1 deletions
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4
doc_src/doc.hdr
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@ -747,6 +747,10 @@ set -e smurf[1]
echo $smurf
</pre>
If you specify a negative index when expanding or assigning to an
array variable, the index will be calculated from the end of the
array. For example, the index -1 means the last index of an array.
\subsection variables-special Special variables
The user can change the settings of \c fish by changing the values of

7
doc_src/set.txt
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@ -32,7 +32,12 @@ If the variable name is one or more array elements, such as
<code>PATH[1 3 7]</code>, only those array elements specified will be
changed. When array indices are specified to set, multiple arguments
may be used to specify additional indexes, e.g. <code>set PATH[1]
PATH[4] /bin /sbin</code>.
PATH[4] /bin /sbin</code>. If you specify a negative index when
expanding or assigning to an array variable, the index will be
calculated from the end of the array. For example, the index -1 means
the last index of an array.
-# If a variable is explicitly set to either universal, global or local, that setting will be honored. If a variable of the same name exists in a different scope, that variable will not be changed.
-# If a variable is not explicitly set to be either universal, global or local, but has been previously defined, the previos variable scope is used.