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Fix PHP4 compatibility problems with substr_count

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git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1163 48356398-32a2-884e-a903-53898d9a118a
This commit is contained in:
Edward Z. Yang 2007-06-19 01:20:00 +00:00
parent 220c150e0a
commit c3094275ef
1 changed files with 23 additions and 7 deletions
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30
library/HTMLPurifier/Lexer/DirectLex.php
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@ -71,7 +71,7 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
$cursor > 0 && // cursor is further than zero
$loops % $synchronize_interval === 0 // time to synchronize!
) {
$current_line = 1 + substr_count($html, $nl, 0, $cursor);
$current_line = 1 + $this->substrCount($html, $nl, 0, $cursor);
}
$position_next_lt = strpos($html, '<', $cursor);
@ -96,7 +96,7 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
);
if ($maintain_line_numbers) {
$token->line = $current_line;
$current_line += substr_count($html, $nl, $cursor, $position_next_lt - $cursor);
$current_line += $this->substrCount($html, $nl, $cursor, $position_next_lt - $cursor);
}
$array[] = $token;
$cursor = $position_next_lt + 1;
@ -137,7 +137,7 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
);
if ($maintain_line_numbers) {
$token->line = $current_line;
$current_line += substr_count($html, $nl, $cursor, $position_next_gt - $cursor);
$current_line += $this->substrCount($html, $nl, $cursor, $position_next_gt - $cursor);
}
$array[] = $token;
$inside_tag = false;
@ -152,7 +152,7 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
$token = new HTMLPurifier_Token_End($type);
if ($maintain_line_numbers) {
$token->line = $current_line;
$current_line += substr_count($html, $nl, $cursor, $position_next_gt - $cursor);
$current_line += $this->substrCount($html, $nl, $cursor, $position_next_gt - $cursor);
}
$array[] = $token;
$inside_tag = false;
@ -174,7 +174,7 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
);
if ($maintain_line_numbers) {
$token->line = $current_line;
$current_line += substr_count($html, $nl, $cursor, $position_next_gt - $cursor);
$current_line += $this->substrCount($html, $nl, $cursor, $position_next_gt - $cursor);
}
$array[] = $token;
$cursor = $position_next_gt + 1;
@ -203,7 +203,7 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
}
if ($maintain_line_numbers) {
$token->line = $current_line;
$current_line += substr_count($html, $nl, $cursor, $position_next_gt - $cursor);
$current_line += $this->substrCount($html, $nl, $cursor, $position_next_gt - $cursor);
}
$array[] = $token;
$inside_tag = false;
@ -235,7 +235,7 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
}
if ($maintain_line_numbers) {
$token->line = $current_line;
$current_line += substr_count($html, $nl, $cursor, $position_next_gt - $cursor);
$current_line += $this->substrCount($html, $nl, $cursor, $position_next_gt - $cursor);
}
$array[] = $token;
$cursor = $position_next_gt + 1;
@ -259,6 +259,22 @@ class HTMLPurifier_Lexer_DirectLex extends HTMLPurifier_Lexer
return $array;
}
/**
* PHP 4 compatible substr_count that implements offset and length
*/
function substrCount($haystack, $needle, $offset, $length) {
static $oldVersion;
if ($oldVersion === null) {
$oldVersion = version_compare(PHP_VERSION, '5.1', '<');
}
if ($oldVersion) {
$haystack = substr($haystack, $offset, $length);
return substr_count($haystack, $needle);
} else {
return substr_count($haystack, $needle, $offset, $length);
}
}
/**
* Takes the inside of an HTML tag and makes an assoc array of attributes.
*