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== Private Use Area and invisible formatting characters == | == Private Use Area and invisible formatting characters == | ||
The only invisible characters in the editable text should be spaces and tabs. However, other invisible characters are often inserted inadvertently by pasting from a word processor. These can cause confusion with editors and handling problems with editing software. Any necessary invisible or [[Wikipedia:Private Use Area|Private Use Area]] (PUA) characters should be substituted with their decimal or hexadecimal code values so that they can be edited properly. | |||
=== Mixed right-to-left text === | === Mixed right-to-left text === | ||
When right-to-left text is embedded in certain left-to-right contexts, such as when tagged with a reference, it may require control characters to display properly. The marker to return to left-to-right text should be encoded as [[Left-to-right mark|<code>&lrm;</code>]] or supplied through the template {{tlx|Rtl-lang}}. | When right-to-left text is embedded in certain left-to-right contexts, such as when tagged with a reference, it may require control characters to display properly. The marker to return to left-to-right text should be encoded as [[Left-to-right mark|<code>&lrm;</code>]] or supplied through the template {{tlx|Rtl-lang}}. | ||