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mirror of https://github.com/erusev/parsedown.git synced 2023-08-10 21:13:06 +03:00

separate parsing of inlines that don't have markers to improve simplicity

This commit is contained in:
Emanuil Rusev 2015-01-04 18:37:24 +02:00
parent c9b4de3c9d
commit d29d879ec6

View File

@ -1043,7 +1043,6 @@ class Parsedown
'!' => array('Image'), '!' => array('Image'),
'&' => array('Ampersand'), '&' => array('Ampersand'),
'*' => array('Emphasis'), '*' => array('Emphasis'),
'/' => array('Url'),
'<' => array('UrlTag', 'EmailTag', 'Tag', 'LessThan'), '<' => array('UrlTag', 'EmailTag', 'Tag', 'LessThan'),
'>' => array('GreaterThan'), '>' => array('GreaterThan'),
'[' => array('Link'), '[' => array('Link'),
@ -1055,7 +1054,7 @@ class Parsedown
# ~ # ~
protected $spanMarkerList = '!"*_&[<>/`~\\'; protected $spanMarkerList = '!"*_&[<>`~\\';
# #
# ~ # ~
@ -1075,40 +1074,24 @@ class Parsedown
$markerPosition += strpos($remainder, $marker); $markerPosition += strpos($remainder, $marker);
$Excerpt = array('text' => $excerpt, 'context' => $text);
foreach ($this->SpanTypes[$marker] as $spanType) foreach ($this->SpanTypes[$marker] as $spanType)
{ {
$handler = 'identify'.$spanType; $handler = 'identify'.$spanType;
$Span = $this->$handler($Excerpt); $Span = $this->$handler($excerpt);
if ( ! isset($Span)) if ( ! isset($Span))
{ {
continue; continue;
} }
# The identified span can be ahead of the marker. $plainText = substr($text, 0, $markerPosition);
if (isset($Span['position']) and $Span['position'] > $markerPosition)
{
continue;
}
# Spans that start at the position of their marker don't have to set a position.
if ( ! isset($Span['position']))
{
$Span['position'] = $markerPosition;
}
$plainText = substr($text, 0, $Span['position']);
$markup .= $this->readPlainText($plainText); $markup .= $this->readPlainText($plainText);
$markup .= isset($Span['markup']) ? $Span['markup'] : $this->element($Span['element']); $markup .= isset($Span['markup']) ? $Span['markup'] : $this->element($Span['element']);
$text = substr($text, $Span['position'] + $Span['extent']); $text = substr($text, $markerPosition + $Span['extent']);
$remainder = $text; $remainder = $text;
@ -1131,34 +1114,9 @@ class Parsedown
# ~ # ~
# #
protected function identifyUrl($Excerpt) protected function identifyAmpersand($excerpt)
{ {
if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '/') if ( ! preg_match('/^&#?\w+;/', $excerpt))
{
return;
}
if (preg_match('/\bhttps?:[\/]{2}[^\s<]+\b\/*/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE))
{
$url = str_replace(array('&', '<'), array('&amp;', '&lt;'), $matches[0][0]);
return array(
'extent' => strlen($matches[0][0]),
'position' => $matches[0][1],
'element' => array(
'name' => 'a',
'text' => $url,
'attributes' => array(
'href' => $url,
),
),
);
}
}
protected function identifyAmpersand($Excerpt)
{
if ( ! preg_match('/^&#?\w+;/', $Excerpt['text']))
{ {
return array( return array(
'markup' => '&amp;', 'markup' => '&amp;',
@ -1167,14 +1125,14 @@ class Parsedown
} }
} }
protected function identifyStrikethrough($Excerpt) protected function identifyStrikethrough($excerpt)
{ {
if ( ! isset($Excerpt['text'][1])) if ( ! isset($excerpt[1]))
{ {
return; return;
} }
if ($Excerpt['text'][1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $Excerpt['text'], $matches)) if ($excerpt[1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $excerpt, $matches))
{ {
return array( return array(
'extent' => strlen($matches[0]), 'extent' => strlen($matches[0]),
@ -1187,12 +1145,12 @@ class Parsedown
} }
} }
protected function identifyEscapeSequence($Excerpt) protected function identifyEscapeSequence($excerpt)
{ {
if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters)) if (isset($excerpt[1]) and in_array($excerpt[1], $this->specialCharacters))
{ {
return array( return array(
'markup' => $Excerpt['text'][1], 'markup' => $excerpt[1],
'extent' => 2, 'extent' => 2,
); );
} }
@ -1222,9 +1180,9 @@ class Parsedown
); );
} }
protected function identifyUrlTag($Excerpt) protected function identifyUrlTag($excerpt)
{ {
if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(https?:[\/]{2}[^\s]+?)>/i', $Excerpt['text'], $matches)) if (strpos($excerpt, '>') !== false and preg_match('/^<(https?:[\/]{2}[^\s]+?)>/i', $excerpt, $matches))
{ {
$url = str_replace(array('&', '<'), array('&amp;', '&lt;'), $matches[1]); $url = str_replace(array('&', '<'), array('&amp;', '&lt;'), $matches[1]);
@ -1241,9 +1199,9 @@ class Parsedown
} }
} }
protected function identifyEmailTag($Excerpt) protected function identifyEmailTag($excerpt)
{ {
if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<((mailto:)?\S+?@\S+?)>/i', $Excerpt['text'], $matches)) if (strpos($excerpt, '>') !== false and preg_match('/^<((mailto:)?\S+?@\S+?)>/i', $excerpt, $matches))
{ {
$url = $matches[1]; $url = $matches[1];
@ -1265,14 +1223,14 @@ class Parsedown
} }
} }
protected function identifyTag($Excerpt) protected function identifyTag($excerpt)
{ {
if ($this->markupEscaped) if ($this->markupEscaped)
{ {
return; return;
} }
if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<\/?\w.*?>/s', $Excerpt['text'], $matches)) if (strpos($excerpt, '>') !== false and preg_match('/^<\/?\w.*?>/s', $excerpt, $matches))
{ {
return array( return array(
'markup' => $matches[0], 'markup' => $matches[0],
@ -1281,11 +1239,11 @@ class Parsedown
} }
} }
protected function identifyInlineCode($Excerpt) protected function identifyInlineCode($excerpt)
{ {
$marker = $Excerpt['text'][0]; $marker = $excerpt[0];
if (preg_match('/^('.$marker.'+)[ ]*(.+?)[ ]*(?<!'.$marker.')\1(?!'.$marker.')/s', $Excerpt['text'], $matches)) if (preg_match('/^('.$marker.'+)[ ]*(.+?)[ ]*(?<!'.$marker.')\1(?!'.$marker.')/s', $excerpt, $matches))
{ {
$text = $matches[2]; $text = $matches[2];
$text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8'); $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
@ -1301,16 +1259,16 @@ class Parsedown
} }
} }
protected function identifyImage($Excerpt) protected function identifyImage($excerpt)
{ {
if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[') if ( ! isset($excerpt[1]) or $excerpt[1] !== '[')
{ {
return; return;
} }
$Excerpt['text'] = substr($Excerpt['text'], 1); $excerpt = substr($excerpt, 1);
$Span = $this->identifyLink($Excerpt); $Span = $this->identifyLink($excerpt);
if ($Span === null) if ($Span === null)
{ {
@ -1331,7 +1289,7 @@ class Parsedown
return $Span; return $Span;
} }
protected function identifyLink($Excerpt) protected function identifyLink($excerpt)
{ {
$Element = array( $Element = array(
'name' => 'a', 'name' => 'a',
@ -1345,7 +1303,7 @@ class Parsedown
$extent = 0; $extent = 0;
$remainder = $Excerpt['text']; $remainder = $excerpt;
if (preg_match('/\[((?:[^][]|(?R))*)\]/', $remainder, $matches)) if (preg_match('/\[((?:[^][]|(?R))*)\]/', $remainder, $matches))
{ {
@ -1404,20 +1362,20 @@ class Parsedown
); );
} }
protected function identifyEmphasis($Excerpt) protected function identifyEmphasis($excerpt)
{ {
if ( ! isset($Excerpt['text'][1])) if ( ! isset($excerpt[1]))
{ {
return; return;
} }
$marker = $Excerpt['text'][0]; $marker = $excerpt[0];
if ($Excerpt['text'][1] === $marker and preg_match($this->StrongRegex[$marker], $Excerpt['text'], $matches)) if ($excerpt[1] === $marker and preg_match($this->StrongRegex[$marker], $excerpt, $matches))
{ {
$emphasis = 'strong'; $emphasis = 'strong';
} }
elseif (preg_match($this->EmRegex[$marker], $Excerpt['text'], $matches)) elseif (preg_match($this->EmRegex[$marker], $excerpt, $matches))
{ {
$emphasis = 'em'; $emphasis = 'em';
} }
@ -1441,6 +1399,10 @@ class Parsedown
protected function readPlainText($text) protected function readPlainText($text)
{ {
$text = $this->linkUrls($text);
# ~
if (strpos($text, "\n") === false) if (strpos($text, "\n") === false)
{ {
return $text; return $text;
@ -1459,6 +1421,32 @@ class Parsedown
return $text; return $text;
} }
# ~
protected function linkUrls($text)
{
$re = '/\bhttps?:[\/]{2}[^\s<]+\b\/*/ui';
$offset = 0;
while (strpos($text, '://', $offset) and preg_match($re, $text, $matches, PREG_OFFSET_CAPTURE, $offset))
{
$url = $matches[0][0];
$urlLength = strlen($url);
$urlPosition = $matches[0][1];
$markup = '<a href="'.$url.'">'.$url.'</a>';
$markupLength = strlen($markup);
$text = substr_replace($text, $markup, $urlPosition, $urlLength);
$offset = $urlPosition + $markupLength;
}
return $text;
}
# #
# ~ # ~
# #