<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE apiClassifier PUBLIC "-//IBM//DTD DITA API Classifier Reference Type//EN"
 "../dtd/apiClassifier.dtd">
<apiClassifier id="FileHandle">
<apiName>FileHandle class</apiName>
<shortdesc>Supply object methods for filehandles.</shortdesc>
<apiClassifierDetail>
<apiSyntax>
<apiSyntaxText>my $fh = new FileHandle(<apiItemName>name</apiItemName>, <apiItemName>mode</apiItemName>);</apiSyntaxText>
<apiSyntaxItem>
<apiItemName>name</apiItemName>
<apiDefNote>The filename for the accessed file.</apiDefNote>
</apiSyntaxItem>
<apiSyntaxItem>
<apiItemName>mode</apiItemName>
<apiDefNote>How the file is accessed including <synph>r</synph> for read and <synph>w</synph> for
write.</apiDefNote>
</apiSyntaxItem>
</apiSyntax>
<apiDesc>The FileHandle class manages input and output operations for files.
When the object is scavenged, the file is closed.</apiDesc>
<example><pre>my @lines;
my $fh = new FileHandle("filename.txt", "r");
if (defined $fh) {
	@lines = $fh->getlines();
	undef $fh;
}</pre><p>The example opens a text file, reads all of the lines from the file
into an array, and closes the file.</p></example>
</apiClassifierDetail>
<apiValue id="autoflush">
<apiName>autoflush variable</apiName>
<shortdesc></shortdesc>
<apiValueDetail>
<apiSyntax>
<apiSyntaxText>$fh->autoflush = <apiItemName>expression</apiItemName>;</apiSyntaxText>
<apiSyntaxItem>
<apiItemName>expression</apiItemName>
<apiDefNote>0 to flush output only on request, 1 to flush output after every
write.</apiDefNote>
</apiSyntaxItem>
</apiSyntax>
</apiValueDetail>
</apiValue>
<apiValue id="input_record_separator">
<apiName>input_record_separator variable</apiName>
<shortdesc>The input record separator, which is a newline by default. </shortdesc>
<apiValueDetail>
<apiSyntax>
<apiSyntaxText>$fh->input_record_separator = undef;</apiSyntaxText>
</apiSyntax>
<apiDesc>You can set input_record_separator to a multi-character string to
match a multi-character terminator or to <synph>undef</synph> to read through
the end of file. </apiDesc>
</apiValueDetail>
</apiValue>
<apiOperation id="print">
<apiName>print subroutine</apiName>
<shortdesc>Prints a string or a list of strings to a file.</shortdesc>
<apiOperationDetail>
<apiSyntax>
<apiSyntaxText>$fh->print(<apiItemName>string</apiItemName>, ...);</apiSyntaxText>
<apiSyntaxItem>
<apiItemName>string</apiItemName>
<apiDefNote>One or more strings for printing to the file.</apiDefNote>
</apiSyntaxItem>
</apiSyntax>
</apiOperationDetail>
</apiOperation>
<apiOperation id="printf">
<apiName>printf subroutine</apiName>
<shortdesc>Prints a string to a file formatted by the usual conventions of
the C library function.</shortdesc>
<apiOperationDetail>
<apiSyntax>
<apiSyntaxText>$fh->printf(<apiItemName>format</apiItemName>, <apiItemName>string</apiItemName>, ...);</apiSyntaxText>
<apiSyntaxItem>
<apiItemName>format</apiItemName>
<apiDefNote>A string with tokens for interpolating and formatting strings.</apiDefNote>
</apiSyntaxItem>
<apiSyntaxItem>
<apiItemName>string</apiItemName>
<apiDefNote>One or more strings to interpolate.</apiDefNote>
</apiSyntaxItem>
</apiSyntax>
</apiOperationDetail>
</apiOperation>
<apiOperation id="getline">
<apiName>getline subroutine</apiName>
<shortdesc>Yields the next line from that file (the newline, if any, included).</shortdesc>
<apiOperationDetail>
<apiSyntax>
<apiSyntaxText>$fh->getline;</apiSyntaxText>
</apiSyntax>
</apiOperationDetail>
</apiOperation>
<apiOperation id="getlines">
<apiName>getlines subroutine</apiName>
<shortdesc>Reads all of the remaining lines from a file as a list.</shortdesc>
<apiOperationDetail>
<apiSyntax>
<apiSyntaxText>$fh->getlines;</apiSyntaxText>
</apiSyntax>
</apiOperationDetail>
</apiOperation>
</apiClassifier>