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Remove items from Dictionary

thread287-1797056

Remove items from Dictionary

Remove items from Dictionary

(OP)
Hi
I need to remove some entries from dict, based on pattern i.e.:
set keyValueMap [dict create "WidgetTEXT" "T" "WidgetPASSWORD" "P" "defValuesDEFAULTS" "DEFAULT" "defValuesRDB" "R"]
set keyValueMap [dict remove $keyValueMap [join [dict keys $keyValueMap "Widget*"]]]
Although [join [dict keys $keyValueMap "Widget*"] returns WidgetTEXT WidgetPASSWORD, this doesn't works;
instead when hard coded: set keyValueMap [dict remove $keyValueMap WidgetTEXT WidgetPASSWORD] works.
What is my mistake?

best regards

RE: Remove items from Dictionary

This is taken as a whole string

CODE

join [dict keys $keyValueMap "Widget*"]

It is like issuing

CODE

set keyValueMap [dict remove $keyValueMap "WidgetTEXT WidgetPASSWORD"]

The string needs to be split into its individual components using {*}

CODE

set keyValueMap [dict remove $keyValueMap {*}[join [dict keys $keyValueMap "Widget*"]]]

RE: Remove items from Dictionary

(OP)
Tanks xwb, I wasn't aware of the expansion operator.
best regards

RE: Remove items from Dictionary

Actually, come to think of it, you don't really need the join. This will also work

CODE

set keyValueMap [dict remove $keyValueMap {*}[dict keys $keyValueMap "Widget*"]]

RE: Remove items from Dictionary

(OP)
Thanks, I already tried it without the join and saw that it works.

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