latte.prototype.phpeg

-namespace Nette\Templates
-name LatteParser

-init {
    $self = (object) array(
        "latte_pair" => array(
            "if" => TRUE,
            "for" => TRUE,
            "foreach" => TRUE,
            "while" => TRUE,
            "block" => TRUE,
        ),
    );
}


latte
  = node+ !.

node
  = text_node
  / html_node
  / latte_comment_node
  / latte_node

text_node
  = (!("<" ![!?] / "{" [a-z$!/*]) .)+

html_node
  = "<" __ tag:[a-zA-Z0-9-]+
    attrs:( _ attr:[a-zA-Z0-9:-]+ "=" '"' value:( latte_node
                                               / latte_comment_node
                                               / (!'"' !("{" [a-z$!/*]) .)+
                                               )* '"'
            -> array($attr, $value)
          )*
    __
    children:( "/>" -> NULL
             / ">" nodes:node* "</" endtag:[a-zA-Z0-9-]+ ">" ?-> $endtag === $tag
               -> $nodes
             )

    -> array("html", $tag, $attrs, $children)

latte_comment_node
  = "{*" content:(!"*}" .)* "*}"
    -> array("comment", $content)

latte_node
  = "{" bang:"!"? "$" var:([a-zA-Z_] [a-zA-Z0-9_]*) filters:(!"}" .)* "}"
    -> array("echo", $var, $bang, $filters)

  / "{" name:[a-zA-Z]+ _ content:(!"}" .)* "}"
    children:( ?-> !isset($self->latte_pair[$name])
               -> NULL

             / ?-> isset($self->latte_pair[$name])
               nodes:node*
               "{/" endname:[a-zA-Z]+ "}" ?-> $endname === $name
               -> $nodes
             )
    -> array("latte", $name, $content, $children)
_
  = [ \t\r\n]+
__
  = [ \t\r\n]*