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Target =
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Displays an alphabetized and numbered list of the references to the records
in the named file, using EXTERNAL file manager. You may choose the key by
which the references are listed.
References that are expressions are shown in quotes. Before listing you can
select the range (or all) you want to list. When selecting a range you must
enclose expressions in quotes, otherwise a number is expected.
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EXTERNAL LIST REFERENCES in file FILE using key number NUMBER
FILE is the name of the file whose references are to be listed.
NUMBER is the number of the key by which you want to select the references.
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SEE ALSO: LIST REFERENCES / LIST VERBS
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The listing of LIST REFERENCES (LR) or EXTERNAL LIST REFERENCES (XLR) can be redirected to the printer or the serial port by typing a redirection key immediately before entering the LR or XLR command.
The default redirection keys are:
for the screen
for the printer
for the communications port
These keys can be changed by making an appropriate entry into the description file PRAGMA.DES.
Before the listing starts you will be asked for the upper and lower bound of the listing. You must type either a numeric value or an expression. The input routine demands that expressions be enclosed in quotes. If an opening quote if not typed, a number is expected, and ONLY digits, the minus sign, or the decimal point may be typed. When a number is expected, all other characters are beeped. Once a quote is typed ("), the routine switches into expression mode, and any value may be typed, including control characters.
A number entered in numeric mode is not validated as entered, but is validated after return is pressed. An invalid numeric found at this point will cause a beep, it will be erased, and you must then reenter it.
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