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18571: extra note on += for associative arrays

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Peter Stephenson 2003-07-04 16:05:18 +00:00
parent 34eed61ac8
commit e50b688cd5
2 changed files with 14 additions and 0 deletions
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Doc/Zsh/params.yo
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@ -257,6 +257,16 @@ patterns used for reverse subscripting (the `tt(r)', `tt(R)', `tt(i)',
etc. flags), but it may also affect parameter substitutions that appear
as part of an arithmetic expression in an ordinary subscript.
It is possible to avoid the use of subscripts in assignments to associative
array elements by using the syntax:
example(
aa+=('key with "*strange*" characters' 'value string')
)
This adds a new key/value pair if the key is not already present, and
replaces the value for the existing key if it is.
The basic rule to remember when writing a subscript expression is that all
text between the opening `tt([)' and the closing `tt(])' is interpreted
em(as if) it were in double quotes (\