Open Watcom FORTRAN 77 Language Reference
Open Watcom FORTRAN 77 Language Reference
Open Watcom FORTRAN 77 Language Reference
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<strong>Language</strong> <strong>Reference</strong><br />
3. An input item of type complex or double precision complex must consist of a left parenthesis<br />
followed by two numeric input fields separated by a comma and followed by a right parenthesis.<br />
The numeric input fields may be preceded or followed by blanks. The end of record can only<br />
appear between the first numeric field and the comma or between the comma and the second<br />
numeric field. Note that a null value must not be used as the real or imaginary part but may<br />
represent the entire complex constant.<br />
4. An input item of type logical must not include either a slash or a comma among the optional<br />
characters allowed in L editing.<br />
5. An input item of type character consists of a non-empty string of characters enclosed in<br />
apostrophes. Apostrophes in character constants are represented by two consecutive apostrophes<br />
without a blank or end of record separating them. Character constants may span records. If this<br />
is the case, the end of record does cause a blanks to be inserted into the character constant. Note<br />
that a comma or slash in a character constant is not a value separator. A character input field is<br />
assigned to a character input item as though it were a character assignment.<br />
11.9.2 List-Directed Output<br />
The form of the output field produced by list-directed output is similar to the form required by list-directed<br />
input. The output of a character constant does not include the enclosing quotes and an apostrophe in a<br />
character constant is output as a single apostrophe. The values are separated by one or more blanks. When<br />
printed, each record will start with a blank if the file is a carriage-control oriented file. For example, the<br />
source listing file produced by <strong>Open</strong> <strong>Watcom</strong> <strong>FORTRAN</strong> <strong>77</strong> is such a file.<br />
11.10 Namelist-Directed Formatting (Extension)<br />
The READ, WRITE, and PRINT statements may be used to transmit data between a file and the variables<br />
specified in a NAMELIST statement.<br />
Example:<br />
CHARACTER*20 NAME<br />
CHARACTER*20 STREET<br />
CHARACTER*15 CITY<br />
CHARACTER*20 STATE<br />
CHARACTER*20 COUNTRY<br />
CHARACTER*10 ZIP_CODE<br />
INTEGER AGE<br />
INTEGER MARKS(10)<br />
NAMELIST /nl/ NAME, STREET, CITY, STATE,<br />
+ COUNTRY, ZIP_CODE, AGE, MARKS<br />
.<br />
.<br />
.<br />
READ( un, nl )<br />
READ( UNIT=un, FMT=nl )<br />
READ nl<br />
WRITE( un, nl )<br />
WRITE( UNIT=un, FMT=nl )<br />
PRINT nl<br />
240 Namelist-Directed Formatting (Extension)
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