问题
I need to parse markup not unlike XML or JSON into trees of elements, in PHP. I'm certain there exist libraries for doing this kind of thing, but I can't for the life of me find any.
Problem is this isn't XML or JSON; It's a number of obscure markups for which exist no specialized parsers. Thus I'm looking for a generic parser that can implement any markup in the form of an element tree.
Alternatively, articles on how to write one. I've written a recursive parser before, but am unsure how to approach making a generic, reusable one.
回答1:
You could try this: http://pear.php.net/package/PHP_ParserGenerator with this: http://pear.php.net/package/PHP_LexerGenerator
There is also some versions of Lemon and JLex with support for emitting PHP here: http://wezfurlong.org/blog/2006/nov/parser-and-lexer-generators-for-php/
And this: https://drupal.org/project/grammar_parser
来源：https://stackoverflow.com/questions/7164318/parsing-markup-into-element-tree