access.nselect

Verb: Access/Access: Verbs, Releases: AP

Performs 'not' select - only items not there.

Syntax

nselect file.reference {itemlist} {sellist} {outlist} {modlist}

Description

selects items which would fail the selection criteria of a 'select'.

When an 'output' list appears in a select-class statement, the list is built from the contents of the specified attribute(s).

Example

nselect md = 'm]'

which is the same as:

select md # 'm]'

The following example finds the Pick/BASIC programs which did not compile in
the 'bp' file:

select bp
[404] 78 items selected out of 78 items.
nselect dict bp
[404] 3 items selected out of 78 items.

Assume that there are two files with different number of items in each. Some
item-ids exist in both files, but not all of them.

First, we select the first file, then we select the items not in the second
file:

select file1
[404] 767 items selected out of 767 items.
nselect file2
[404] 323 items selected.

The list contains the items in 'file1' that are NOT in
'file2'.

See Also

Command Name Type Description
access.select Verb: Access Creates list of items meeting specific criteria.
access.sselect Verb: Access Creates sorted list of items meeting specific criteria.
access.itemlist Definition Defines a specific list of item-ids.
access.sellist Definition Defines selection criteria portion of an Access sentence.
access.selection.criteria Definition Description of Access selection criteria.
access.outlist Definition Defines list of attributes to output.
active.list Definition A list of strings delimited by attribute marks created by one of the list-generating processes.
secondary.list Definition A list of item-id's generated by one of the list-generating processes while an active list is present.
tcl.get-list Verb: Access Retrieves previously saved list.
tcl.qselect Verb: Access Creates active list from item(s).
tcl.fl Verb: Access Forms single list from two lists.
tcl.compare-list Verb: Access Compares two lists for intersections.
access.verbs Definition General form of Access sentences.

User Comments

What do you think?

Share your experience or ask a question by using the form below.

Login to leave your comments.