Parsing Instructions Summary

About this task

Remember: All parsing instructions assign parts of the source string into the variables named in the template. The following table summarizes where the source string comes from.

Instruction Where the source string comes from
ARG

PARSE ARG

Arguments you list when you call the program or arguments in the call to a subroutine or function.
PARSE EXTERNAL Next line from terminal input buffer
PARSE NUMERIC Numeric control information (from NUMERIC instruction).
PULL

PARSE PULL

The string at the head of the external data queue. (If queue empty, uses default input, typically the terminal.)
PARSE SOURCE System-supplied string giving information about the executing program.
PARSE VALUE Expression between the keyword VALUE and the keyword WITH in the instruction.
PARSE VAR name Parses the value of name.
PARSE VERSION System-supplied string specifying the language, language level, and (three-word) date.

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Timestamp icon Last updated: Tuesday, 7 January 2014


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