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  • Bug fixes for general core bugs in 4.0.x will end 8 May 2023 (12 months).
  • Bug fixes for security issues in 4.0.x will end 13 November 2023 (18 months).
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/lib/html2text/ -> override.php (source)

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Run time overrides for Html2Text This allows us to monkey patch the mb_* functions used in Html2Text to use Moodle's core_text functionality.

Copyright: 2016 Andrew Nicols <andrew@nicols.uk>
License: http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
File Size: 133 lines (5 kb)
Included or required: 1 time
Referenced: 0 times
Includes or requires: 0 files

Defines 5 functions

  mb_internal_encoding()
  mb_substr()
  mb_strlen()
  mb_strtolower()
  mb_strtoupper()

Functions
Functions that are not part of a class:

mb_internal_encoding($encoding = null)   X-Ref
Set the encoding to be used by our monkey patched mb_ functions.

When called with $encoding !== null, we set  the static $intenalencoding
variable, which is used for subsequent calls.

When called with no value for $encoding, we return the previously defined
$internalencoding.

This is necessary as we need to maintain the state of mb_internal_encoding
across calls to other mb_* functions. Check how it is used in the other mb_*
functions defined here - if no encoding is provided we fallback to what was
set here, otherwise we used the given encoding.

return: mixed
param: string $encoding When given, sets $internalencoding

mb_substr($str, $start, $length = null, $encoding = null)   X-Ref
Performs a multi-byte safe substr() operation based on number of characters.
Position is counted from the beginning of str. First character's position is
0. Second character position is 1, and so on.

return: string The portion of str specified by the start and length parameters.
param: string $str      The string to extract the substring from.
param: int    $start    If start is non-negative, the returned string will
param: int    $length   Maximum number of characters to use from str. If
param: string $encoding The encoding parameter is the character encoding.

mb_strlen($str, $encoding = null)   X-Ref
Gets the length of a string.

return: int The number of characters in str having character encoding $encoding.
param: string $str      The string being checked for length.
param: string $encoding The encoding parameter is the character encoding.

mb_strtolower($str, $encoding = null)   X-Ref
Returns $str with all alphabetic chatacters converted to lowercase.

return: string The string with all alphabetic characters converted to lowercase.
param: string $str      The string being lowercased.
param: string $encoding The encoding parameter is the character encoding.

mb_strtoupper($str, $encoding = null)   X-Ref

return: string The string with all alphabetic characters converted to uppercase.
param: string The string being uppercased
param: string $encoding The encoding parameter is the character encoding.