READFILE

NAME

readfile – return the entire contents of a file as a string  

SYNOPSIS

@load "readfile"

result = readfile("/some/path")

For making whole files be single records:

@load "readfile"
BEGIN { PROCINFO["readfile"] = 1 }  

DESCRIPTION

The readfile extension adds a single function named readfile(). The argument is the name of the file to read. The return value is a string containing the entire contents of the requested file.

Upon error, the function returns the empty string and sets ERRNO.

In addition, it adds an input parser that is activated if PROCINFO["readfile"] exists. When activated, each input file is returned in its entirety as $0. RT is set to the null string. # .SH NOTES # .SH BUGS  

EXAMPLE

@load "readfile"
…
contents = readfile("/path/to/file");
if (contents == "" && ERRNO != "") {
    print("problem reading file", ERRNO) > "/dev/stderr"
    …
}

 

AUTHOR

Arnold Robbins, [email protected].  

COPYING PERMISSIONS

Copyright © 2012, 2013, 2014, Free Software Foundation, Inc.

Permission is granted to make and distribute verbatim copies of this manual page provided the copyright notice and this permission notice are preserved on all copies.

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