Editing BBCode (section)

== Implementation ==
BBCode is typically implemented by applying a series of [[regular expression]] string-replace operations upon the input. Because regular expressions are limited in analyzing the structure of text input, this has the artifact that any non-hierarchical BBCode input will be transformed into invalid non-hierarchical HTML without error.{{Citation needed|date=January 2022}}

Applying traditional parsing techniques is made difficult by [[syntactic ambiguity|ambiguities]] in the markup, such as in {{code|1=[quote=[b]text[/b][/quote]}}, where the input can either be interpreted as "text" quoted from someone called {{code|[b}}, or the bolded text "text" surrounded by {{code|1=[quote=}} and {{code|lang=bbcode|code=[/quote]}}, i.e. <code>[quote='''text'''[/quote]</code>.