Unicode-Normalization Stream-Filter

ATTENTION: This package has been replaced by the Unicode-Normalization package!

A composer-package providing a stream filter to normalize unicode, currently only utf8.

Installation

php composer.phar require sjorek/unicode-normalization-stream-filter

Example

<?php
\Sjorek\UnicodeNormalization\StreamFilter::register();

$in_file = fopen('utf8-file.txt', 'r');
$out_file = fopen('utf8-normalized-to-nfc-file.txt', 'w');

// It works as a read filter:
stream_filter_append($in_file, 'convert.unicode-normalization.NFC');
// And it also works as a write filter:
// stream_filter_append($out_file, 'convert.unicode-normalization.NFC');

stream_copy_to_stream($in_file, $out_file);

Usage

<?php
/**
 * @var $stream        resource   The stream to filter.
 * @var $form          string     The form to normalize unicode to.
 * @var $read_write    int        STREAM_FILTER_* constant to override the filter injection point
 *
 * @link http://php.net/manual/en/function.stream-filter-append.php
 * @link http://php.net/manual/en/function.stream-filter-prepend.php
 */
stream_filter_append($stream, "convert.unicode-normalization.$form", $read_write);

Note: Be careful when using on streams in r+ or w+ (or similar) modes; by default PHP will assign the filter to both the reading and writing chain. This means it will attempt to convert the data twice - first when reading from the stream, and once again when writing to it.

Contributing

Look at the contribution guidelines

Status

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