atoms-family

atom

A Functions

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atoms-family

Returns a list of the currently defined symbols

(atoms-family format [symlist]) 

Arguments

format

An integer value of 0 or 1 that determines the format in which atoms-family returns the symbol names:

0 Return the symbol names as a list

1 Return the symbol names as a list of strings

symlist

A list of strings that specify the symbol names you want atoms-family to search for.

Return Values

A list of symbols. If you specify symlist, then atoms-family returns the specified symbols that are currently defined, and returns nil for those symbols that are not defined.

Examples

Command: (atoms-family 0)

(BNS_PRE_SEL FITSTR2LEN C:AI_SPHERE ALERT DEFUN C:BEXTEND REM_GROUP

B_RESTORE_SYSVARS BNS_CMD_EXIT LISPED FNSPLITL...

The following code verifies that the symbols CAR, CDR, and XYZ are defined, and returns the list as strings:

Command: (atoms-family 1 '("CAR" "CDR" "XYZ"))

("CAR" "CDR" nil)

The return value shows that the symbol XYZ is not defined.