File: wp-includes/formatting.php
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functionseems_utf8()
Checks to see if a string is utf8 encoded.
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function_wp_specialchars()
Converts a number of special characters into their HTML entities.
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functionwp_specialchars_decode()
Converts a number of HTML entities into their special characters.
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functionwp_check_invalid_utf8()
Checks for invalid UTF8 in a string.
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functionwptexturize()
Replaces common plain text characters with formatted entities.
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functionutf8_uri_encode()
Encodes the Unicode values to be used in the URI.
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Filters the list of HTML elements not to texturize.
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functionremove_accents()
Converts all accent characters to ASCII characters.
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Filters the list of shortcodes not to texturize.
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function_wptexturize_pushpop_element()
Searches for disabled element tags. Pushes element to stack on tag open and pops on tag close.
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functionsanitize_url()
Sanitizes a URL for database or redirect usage.