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- Usage: FOREACH <structure> <variable> { <commands> }
- This causes <commands> to be executed once for each
- element in the structure. The aliases inside the {}
- are not expanded until execution unless the leading {
- is quoted like \{
- Here are a couple examples of basic foreach commands.
- assign blue.1 one
- assign blue.2 two
- assign blue.3 three
- foreach blue ii { echo $ii $blue[$ii] }
- will return
- 1 one
- 2 two
- 3 three
- FOREACH can also be imbedded such as in the following example.
- assign blue.1.1 one one
- assign blue.1.2 one two
- assign blue.2.1 two one
- assign blue.2.2 two two
- alias showblue {
- foreach blue ii
- {
- foreach blue.$ii jj
- {
- echo $ii $jj $blue[$ii][$jj]
- }
- }
- }
- And /showblue returns..
- 1 1 one one
- 1 2 one two
- 2 1 two one
- 2 2 two two
-
- Note:
- When using this format the {} in the foreach must be on separate
- lines by themselves. This is true for IF and WHILE as well.
-
- Notice that variable names 'ii' and 'jj' were used. Any name can
- be used for the index but keep in mind that single letter vars can
- interfere with the built in single char vars. See ALIAS special
-
- See Also:
- expressions
- ALIAS special
-