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OPEN: BLANK Specifier
The BLANK specifier indicates how blanks are interpreted in a file. It takes the following form:
BLANK = blnk
blnk |
Is a scalar default character expression that evaluates to one of the following values:
|
The default is 'NULL' (for explicitly OPENed files, preconnected files, and internal files). If you specify compiler option f66 (or OPTIONS/NOF77), the default is 'ZERO'.
Blank interpretation mode is an overridable setting. A BLANK= specifier in an I/O control list can change the blank interpretation mode for the statement containing that I/O control list. If the BN or BZ edit descriptors are specified for a formatted input statement, they supersede the interpretation of blanks set by a BLANK specifier in an OPEN statement or an I/O control list.
This specifier is not allowed on unformatted input or output.