mirror of
https://github.com/erusev/parsedown.git
synced 2023-08-10 21:13:06 +03:00
rewrite parse_block_elements() to remove goto
The goto clause is the only thing which prevents this class to be PHP 5.2-compatible. Also, goto is evil.
This commit is contained in:
Dimitar Dimitrov
parent
ee9a1e92c0
commit
9eedcc3386
305
Parsedown.php
305
Parsedown.php
@ -205,194 +205,193 @@ class Parsedown
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# Quick Paragraph
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if ($line[0] >= 'a' or $line[0] >= 'A' and $line[0] <= 'Z')
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if (!($line[0] >= 'a' or $line[0] >= 'A' and $line[0] <= 'Z'))
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{
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goto paragraph;
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}
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# Code
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# Code
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if ($line[0] === ' ' and preg_match('/^[ ]{4}(.*)/', $line, $matches))
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{
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if ($element['type'] === 'code')
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if ($line[0] === ' ' and preg_match('/^[ ]{4}(.*)/', $line, $matches))
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{
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if (isset($element['interrupted']))
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if ($element['type'] === 'code')
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{
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$element['text'] .= "\n";
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if (isset($element['interrupted']))
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{
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$element['text'] .= "\n";
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unset ($element['interrupted']);
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unset ($element['interrupted']);
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}
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$element['text'] .= "\n".$matches[1];
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}
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else
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{
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$elements []= $element;
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$element = array(
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'type' => 'code',
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'text' => $matches[1],
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);
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}
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$element['text'] .= "\n".$matches[1];
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continue;
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}
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else
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# Setext Header (---)
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if ($line[0] === '-' and $element['type'] === 'p' and ! isset($element['interrupted']) and preg_match('/^[-]+[ ]*$/', $line))
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{
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$element['type'] = 'h.';
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$element['level'] = 2;
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continue;
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}
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# Atx Header (#)
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if ($line[0] === '#' and preg_match('/^(#{1,6})[ ]*(.+?)[ ]*#*$/', $line, $matches))
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{
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$elements []= $element;
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$level = strlen($matches[1]);
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$element = array(
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'type' => 'code',
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'text' => $matches[1],
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'type' => 'h.',
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'text' => $matches[2],
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'level' => $level,
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);
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continue;
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}
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continue;
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}
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# Setext Header (===)
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# Setext Header (---)
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if ($line[0] === '-' and $element['type'] === 'p' and ! isset($element['interrupted']) and preg_match('/^[-]+[ ]*$/', $line))
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{
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$element['type'] = 'h.';
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$element['level'] = 2;
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continue;
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}
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# Atx Header (#)
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if ($line[0] === '#' and preg_match('/^(#{1,6})[ ]*(.+?)[ ]*#*$/', $line, $matches))
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{
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$elements []= $element;
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$level = strlen($matches[1]);
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$element = array(
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'type' => 'h.',
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'text' => $matches[2],
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'level' => $level,
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);
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continue;
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}
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# Setext Header (===)
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if ($line[0] === '=' and $element['type'] === 'p' and ! isset($element['interrupted']) and preg_match('/^[=]+[ ]*$/', $line))
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{
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$element['type'] = 'h.';
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$element['level'] = 1;
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continue;
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}
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# ~
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$pure_line = $line[0] !== ' ' ? $line : ltrim($line);
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# Link Reference
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if ($pure_line[0] === '[' and preg_match('/^\[(.+?)\]:[ ]*([^ ]+)/', $pure_line, $matches))
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{
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$label = strtolower($matches[1]);
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$url = trim($matches[2], '<>');
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$this->reference_map[$label] = $url;
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continue;
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}
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# Blockquote
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if ($pure_line[0] === '>' and preg_match('/^>[ ]?(.*)/', $pure_line, $matches))
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{
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if ($element['type'] === 'blockquote')
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if ($line[0] === '=' and $element['type'] === 'p' and ! isset($element['interrupted']) and preg_match('/^[=]+[ ]*$/', $line))
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{
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if (isset($element['interrupted']))
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{
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$element['lines'] []= '';
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$element['type'] = 'h.';
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$element['level'] = 1;
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unset($element['interrupted']);
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continue;
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}
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# ~
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$pure_line = $line[0] !== ' ' ? $line : ltrim($line);
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# Link Reference
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if ($pure_line[0] === '[' and preg_match('/^\[(.+?)\]:[ ]*([^ ]+)/', $pure_line, $matches))
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{
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$label = strtolower($matches[1]);
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$url = trim($matches[2], '<>');
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$this->reference_map[$label] = $url;
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continue;
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}
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# Blockquote
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if ($pure_line[0] === '>' and preg_match('/^>[ ]?(.*)/', $pure_line, $matches))
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{
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if ($element['type'] === 'blockquote')
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{
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if (isset($element['interrupted']))
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{
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$element['lines'] []= '';
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unset($element['interrupted']);
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}
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$element['lines'] []= $matches[1];
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}
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else
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{
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$elements []= $element;
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$element = array(
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'type' => 'blockquote',
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'lines' => array(
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$matches[1],
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),
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);
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}
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$element['lines'] []= $matches[1];
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continue;
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}
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else
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# HTML
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if ($pure_line[0] === '<')
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{
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# Block-Level HTML <self-closing/>
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if (preg_match('{^<.+?/>$}', $pure_line))
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{
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$elements []= $element;
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$element = array(
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'type' => '',
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'text' => $pure_line,
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);
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continue;
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}
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# Block-Level HTML <open>
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if (preg_match('{^<(\w+)(?:[ ].*?)?>}', $pure_line, $matches))
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{
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$elements []= $element;
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$element = array(
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'type' => 'block',
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'subtype' => strtolower($matches[1]),
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'text' => $pure_line,
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'depth' => 0,
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);
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preg_match('{</'.$matches[1].'>\s*$}', $pure_line) and $element['closed'] = true;
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continue;
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}
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}
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# Horizontal Rule
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if (preg_match('/^([-*_])([ ]{0,2}\1){2,}[ ]*$/', $pure_line))
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{
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$elements []= $element;
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$element = array(
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'type' => 'blockquote',
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'type' => 'hr',
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);
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continue;
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}
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# List Item
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if (preg_match('/^([ ]*)(\d+[.]|[*+-])[ ](.*)/', $line, $matches))
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{
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$elements []= $element;
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$element = array(
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'type' => 'li',
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'ordered' => isset($matches[2][1]),
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'indentation' => $matches[1],
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'last' => true,
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'lines' => array(
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$matches[1],
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preg_replace('/^[ ]{0,4}/', '', $matches[3]),
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),
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);
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}
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continue;
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}
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# HTML
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if ($pure_line[0] === '<')
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{
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# Block-Level HTML <self-closing/>
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if (preg_match('{^<.+?/>$}', $pure_line))
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{
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$elements []= $element;
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$element = array(
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'type' => '',
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'text' => $pure_line,
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);
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continue;
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}
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# Block-Level HTML <open>
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if (preg_match('{^<(\w+)(?:[ ].*?)?>}', $pure_line, $matches))
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{
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$elements []= $element;
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$element = array(
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'type' => 'block',
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'subtype' => strtolower($matches[1]),
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'text' => $pure_line,
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'depth' => 0,
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);
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preg_match('{</'.$matches[1].'>\s*$}', $pure_line) and $element['closed'] = true;
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continue;
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}
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# ~
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}
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# Horizontal Rule
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if (preg_match('/^([-*_])([ ]{0,2}\1){2,}[ ]*$/', $pure_line))
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{
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$elements []= $element;
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$element = array(
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'type' => 'hr',
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);
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continue;
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}
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# List Item
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if (preg_match('/^([ ]*)(\d+[.]|[*+-])[ ](.*)/', $line, $matches))
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{
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$elements []= $element;
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$element = array(
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'type' => 'li',
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'ordered' => isset($matches[2][1]),
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'indentation' => $matches[1],
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'last' => true,
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'lines' => array(
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preg_replace('/^[ ]{0,4}/', '', $matches[3]),
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),
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);
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continue;
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}
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# ~
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paragraph:
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# Paragraph
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if ($element['type'] === 'p')
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{
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