Test::Builder::IO::Scalar3perl

Construction

new [ARGS...]

Class method. Return a new, unattached scalar handle. If any arguments are given, they're sent to open().

open [SCALARREF]

Instance method. Open the scalar handle on a new scalar, pointed to by SCALARREF. If no SCALARREF is given, a "private" scalar is created to hold the file data.

Returns the self object on success, undefined on error.

opened

Instance method. Is the scalar handle opened on something?

close

Instance method. Disassociate the scalar handle from its underlying scalar. Done automatically on destroy.

Input and output

flush

Instance method. No-op, provided for OO compatibility.

getc

Instance method. Return the next character, or undef if none remain.

getline

Instance method. Return the next line, or undef on end of string. Can safely be called in an array context. Currently, lines are delimited by "\n".

getlines

Instance method. Get all remaining lines. It will croak() if accidentally called in a scalar context.

print ARGS...

Instance method. Print ARGS to the underlying scalar.

Warning: this continues to always cause a seek to the end of the string, but if you perform seek()s and tell()s, it is still safer to explicitly seek-to-end before subsequent print()s.

read BUF, NBYTES, [OFFSET]

Instance method. Read some bytes from the scalar. Returns the number of bytes actually read, 0 on end-of-file, undef on error.

write BUF, NBYTES, [OFFSET]

Instance method. Write some bytes to the scalar.

sysread BUF, LEN, [OFFSET]

Instance method. Read some bytes from the scalar. Returns the number of bytes actually read, 0 on end-of-file, undef on error.

syswrite BUF, NBYTES, [OFFSET]

Instance method. Write some bytes to the scalar.

Seeking/telling and other attributes

autoflush

Instance method. No-op, provided for OO compatibility.

binmode

Instance method. No-op, provided for OO compatibility.

clearerr

Instance method. Clear the error and EOF flags. A no-op.

eof

Instance method. Are we at end of file?

seek OFFSET, WHENCE

Instance method. Seek to a given position in the stream.

sysseek OFFSET, WHENCE

Instance method. Identical to "seek OFFSET, WHENCE", q.v.

tell

Instance method. Return the current position in the stream, as a numeric offset.

use_RS [YESNO]

Instance method. Deprecated and ignored. Obey the current setting of $/, like IO::Handle does? Default is false in 1.x, but cold-welded true in 2.x and later.

setpos POS

Instance method. Set the current position, using the opaque value returned by getpos().

getpos

Instance method. Return the current position in the string, as an opaque object.

sref

Instance method. Return a reference to the underlying scalar.