Remove HTML5 parser lib deprecated in Hubzilla 5.0drop-unused-html5-library

1 files changed, 0 insertions, 284 deletions

diff --git a/library/HTML5/InputStream.php b/library/HTML5/InputStream.php
deleted file mode 100644
index f98b42723..000000000
--- a/library/HTML5/InputStream.php
+++ /dev/null
@@ -1,284 +0,0 @@
-<?php
-
-/*
-
-Copyright 2009 Geoffrey Sneddon <http://gsnedders.com/>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-*/
-
-// Some conventions:
-// /* */ indicates verbatim text from the HTML 5 specification
-// // indicates regular comments
-
-class HTML5_InputStream {
-    /**
-     * The string data we're parsing.
-     */
-    private $data;
-
-    /**
-     * The current integer byte position we are in $data
-     */
-    private $char;
-
-    /**
-     * Length of $data; when $char === $data, we are at the end-of-file.
-     */
-    private $EOF;
-
-    /**
-     * Parse errors.
-     */
-    public $errors = array();
-
-    /**
-     * @param $data Data to parse
-     */
-    public function __construct($data) {
-
-        /* Given an encoding, the bytes in the input stream must be
-        converted to Unicode characters for the tokeniser, as
-        described by the rules for that encoding, except that the
-        leading U+FEFF BYTE ORDER MARK character, if any, must not
-        be stripped by the encoding layer (it is stripped by the rule below).
-
-        Bytes or sequences of bytes in the original byte stream that
-        could not be converted to Unicode characters must be converted
-        to U+FFFD REPLACEMENT CHARACTER code points. */
-
-        // XXX currently assuming input data is UTF-8; once we
-        // build encoding detection this will no longer be the case
-        //
-        // We previously had an mbstring implementation here, but that
-        // implementation is heavily non-conforming, so it's been
-        // omitted.
-        if (extension_loaded('iconv')) {
-            // non-conforming
-            $data = @iconv('UTF-8', 'UTF-8//IGNORE', $data);
-        } else {
-            // we can make a conforming native implementation
-            throw new Exception('Not implemented, please install mbstring or iconv');
-        }
-
-        /* One leading U+FEFF BYTE ORDER MARK character must be
-        ignored if any are present. */
-        if (substr($data, 0, 3) === "\xEF\xBB\xBF") {
-            $data = substr($data, 3);
-        }
-
-        /* All U+0000 NULL characters in the input must be replaced
-        by U+FFFD REPLACEMENT CHARACTERs. Any occurrences of such
-        characters is a parse error. */
-        for ($i = 0, $count = substr_count($data, "\0"); $i < $count; $i++) {
-            $this->errors[] = array(
-                'type' => HTML5_Tokenizer::PARSEERROR,
-                'data' => 'null-character'
-            );
-        }
-        /* U+000D CARRIAGE RETURN (CR) characters and U+000A LINE FEED
-        (LF) characters are treated specially. Any CR characters
-        that are followed by LF characters must be removed, and any
-        CR characters not followed by LF characters must be converted
-        to LF characters. Thus, newlines in HTML DOMs are represented
-        by LF characters, and there are never any CR characters in the
-        input to the tokenization stage. */
-        $data = str_replace(
-            array(
-                "\0",
-                "\r\n",
-                "\r"
-            ),
-            array(
-                "\xEF\xBF\xBD",
-                "\n",
-                "\n"
-            ),
-            $data
-        );
-
-        /* Any occurrences of any characters in the ranges U+0001 to
-        U+0008, U+000B,  U+000E to U+001F,  U+007F  to U+009F,
-        U+D800 to U+DFFF , U+FDD0 to U+FDEF, and
-        characters U+FFFE, U+FFFF, U+1FFFE, U+1FFFF, U+2FFFE, U+2FFFF,
-        U+3FFFE, U+3FFFF, U+4FFFE, U+4FFFF, U+5FFFE, U+5FFFF, U+6FFFE,
-        U+6FFFF, U+7FFFE, U+7FFFF, U+8FFFE, U+8FFFF, U+9FFFE, U+9FFFF,
-        U+AFFFE, U+AFFFF, U+BFFFE, U+BFFFF, U+CFFFE, U+CFFFF, U+DFFFE,
-        U+DFFFF, U+EFFFE, U+EFFFF, U+FFFFE, U+FFFFF, U+10FFFE, and
-        U+10FFFF are parse errors. (These are all control characters
-        or permanently undefined Unicode characters.) */
-        // Check PCRE is loaded.
-        if (extension_loaded('pcre')) {
-            $count = preg_match_all(
-                '/(?:
-                    [\x01-\x08\x0B\x0E-\x1F\x7F] # U+0001 to U+0008, U+000B,  U+000E to U+001F and U+007F
-                |
-                    \xC2[\x80-\x9F] # U+0080 to U+009F
-                |
-                    \xED(?:\xA0[\x80-\xFF]|[\xA1-\xBE][\x00-\xFF]|\xBF[\x00-\xBF]) # U+D800 to U+DFFFF
-                |
-                    \xEF\xB7[\x90-\xAF] # U+FDD0 to U+FDEF
-                |
-                    \xEF\xBF[\xBE\xBF] # U+FFFE and U+FFFF
-                |
-                    [\xF0-\xF4][\x8F-\xBF]\xBF[\xBE\xBF] # U+nFFFE and U+nFFFF (1 <= n <= 10_{16})
-                )/x',
-                $data,
-                $matches
-            );
-            for ($i = 0; $i < $count; $i++) {
-                $this->errors[] = array(
-                    'type' => HTML5_Tokenizer::PARSEERROR,
-                    'data' => 'invalid-codepoint'
-                );
-            }
-        } else {
-            // XXX: Need non-PCRE impl, probably using substr_count
-        }
-
-        $this->data = $data;
-        $this->char = 0;
-        $this->EOF  = strlen($data);
-    }
-
-    /**
-     * Returns the current line that the tokenizer is at.
-     */
-    public function getCurrentLine() {
-        // Check the string isn't empty
-        if($this->EOF) {
-            // Add one to $this->char because we want the number for the next
-            // byte to be processed.
-            return substr_count($this->data, "\n", 0, min($this->char, $this->EOF)) + 1;
-        } else {
-            // If the string is empty, we are on the first line (sorta).
-            return 1;
-        }
-    }
-
-    /**
-     * Returns the current column of the current line that the tokenizer is at.
-     */
-    public function getColumnOffset() {
-        // strrpos is weird, and the offset needs to be negative for what we
-        // want (i.e., the last \n before $this->char). This needs to not have
-        // one (to make it point to the next character, the one we want the
-        // position of) added to it because strrpos's behaviour includes the
-        // final offset byte.
-        $lastLine = strrpos($this->data, "\n", $this->char - 1 - strlen($this->data));
-
-        // However, for here we want the length up until the next byte to be
-        // processed, so add one to the current byte ($this->char).
-        if($lastLine !== false) {
-            $findLengthOf = substr($this->data, $lastLine + 1, $this->char - 1 - $lastLine);
-        } else {
-            $findLengthOf = substr($this->data, 0, $this->char);
-        }
-
-        // Get the length for the string we need.
-        if(extension_loaded('iconv')) {
-            return iconv_strlen($findLengthOf, 'utf-8');
-        } elseif(extension_loaded('mbstring')) {
-            return mb_strlen($findLengthOf, 'utf-8');
-        } elseif(extension_loaded('xml')) {
-            return strlen(utf8_decode($findLengthOf));
-        } else {
-            $count = count_chars($findLengthOf);
-            // 0x80 = 0x7F - 0 + 1 (one added to get inclusive range)
-            // 0x33 = 0xF4 - 0x2C + 1 (one added to get inclusive range)
-            return array_sum(array_slice($count, 0, 0x80)) +
-                   array_sum(array_slice($count, 0xC2, 0x33));
-        }
-    }
-
-    /**
-     * Retrieve the currently consume character.
-     * @note This performs bounds checking
-     */
-    public function char() {
-        return ($this->char++ < $this->EOF)
-            ? $this->data[$this->char - 1]
-            : false;
-    }
-
-    /**
-     * Get all characters until EOF.
-     * @note This performs bounds checking
-     */
-    public function remainingChars() {
-        if($this->char < $this->EOF) {
-            $data = substr($this->data, $this->char);
-            $this->char = $this->EOF;
-            return $data;
-        } else {
-            return false;
-        }
-    }
-
-    /**
-     * Matches as far as possible until we reach a certain set of bytes
-     * and returns the matched substring.
-     * @param $bytes Bytes to match.
-     */
-    public function charsUntil($bytes, $max = null) {
-        if ($this->char < $this->EOF) {
-            if ($max === 0 || $max) {
-                $len = strcspn($this->data, $bytes, $this->char, $max);
-            } else {
-                $len = strcspn($this->data, $bytes, $this->char);
-            }
-            $string = (string) substr($this->data, $this->char, $len);
-            $this->char += $len;
-            return $string;
-        } else {
-            return false;
-        }
-    }
-
-    /**
-     * Matches as far as possible with a certain set of bytes
-     * and returns the matched substring.
-     * @param $bytes Bytes to match.
-     */
-    public function charsWhile($bytes, $max = null) {
-        if ($this->char < $this->EOF) {
-            if ($max === 0 || $max) {
-                $len = strspn($this->data, $bytes, $this->char, $max);
-            } else {
-                $len = strspn($this->data, $bytes, $this->char);
-            }
-            $string = (string) substr($this->data, $this->char, $len);
-            $this->char += $len;
-            return $string;
-        } else {
-            return false;
-        }
-    }
-
-    /**
-     * Unconsume one character.
-     */
-    public function unget() {
-        if ($this->char <= $this->EOF) {
-            $this->char--;
-        }
-    }
-}