readfile, longline - reads file, gets longest line
The readfile function reads filename and copies it to
stdout. No translation of NEWLINE is done. It keeps track of
the longest line it reads and if there is a subsequent call
to longline, the length of that line, including the NEWLINE
character, is returned.
The longline function returns the length, including the NEW-
LINE character, of the longest line in filename. If
filename is not specified, it uses the file named in the
last call to readfile.
Example 1: Typical use of readfile and longline
Here is a typical use of readfile and longline in a text
frame definition file:
See attributes(5) for descriptions of the following attri-
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Availability | SUNWcsu |
If filename does not exist, readfile will return FALSE
(that is, the expression will have an error return).
longline returns 0 if a readfile has not previously been
More than one descriptor can call readfile in the same frame
definition file. In text frames, if one of those calls is
made from the text descriptor, then a subsequent use of
longline will always get the longest line of the file read
by the readfile associated with the text descriptor, even if
it was not the most recent use of readfile.
Man(1) output converted with