interfaces 7 contracts 7 php 6 decoupling 6 abstractions 6 standards 6 interoperability 6 grammar 5 compatibility 5 parser 4 stream 4 ast 3 utils 3 language 3 lexer 3 token 3 parsing 3 file 2 tree 2 source 2 rules 2 runtime 2 recursive-descent-parser 2 analyzing 2 llk 2 ll1 2 input 2 line 2 exception 2 compiler 2 builder 2 position 2 column 2 visualization 2 offset 2 tokenizer 2 regex 2 abstraction 1 directory 1 fs 1 reader 1 file system 1 combinator 1 library 1 lookahead 1 tool 1 trace 1 io 1 read 1 disk 1 Buffer 1 buffer 1 eager-load 1 iterator 1 lazy-loading 1 helpers 1 errors 1 renderer 1 util 1 syntax 1 analysis 1 compiler-compiler 1 ebnf 1 lr 1 slr 1 analyzer 1 metadata 1 scanner 1 pcre 1 pcre2 1 node 1 asserts 1 visitor 1 traverser 1