readfile(1F) readfile(1F)
NAME
readfile, longline - read file, get longest line
SYNOPSIS
readfile file
longline [file]
DESCRIPTION
The readfile function reads file 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 readfile function primarily checks the system's locale.
If it is not set to C (default), it tries to read file from
dirname/$LANG. If no file can be found under dirname/$LANG,
file will be read from dirname.
The longline function returns the length, including the
NEWLINE character, of the longest line in file. If file is
not specified, it uses the file named in the last call to
readfile.
EXAMPLES
Here is a typical use of readfile and longline in a text frame
definition file:
.
.
.
text="`readfile myfile`"
columns=`longline`
.
.
.
DIAGNOSTICS
If file 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
issued.
Copyright 1994 Novell, Inc. Page 1
readfile(1F) readfile(1F)
NOTICES
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.
REFERENCES
cat(1)
Copyright 1994 Novell, Inc. Page 2