nano-ui-scheme

UI-files scheme compiler and validator

Scheme of ui-scheme

lex DEFID|TAG|LEXID ([A-Za-z0-9_-]+)\s*
lex PIPE            \|\s*
lex REGEXP          (.+)

lex POSTOP         ([?+-])\s*
lex BROP           \(\s*
lex BRCL           \)\s*

def GROUP
    seq BROP EXPR BRCL
    seq DEFID|LEXID

def POSTFIX
    seq GROUP POSTOP?

def SEQ
    seq POSTFIX+

def EXPR
    seq SEQ (PIPE SEQ)*

rule lex LEXID (PIPE LEXID)* REGEXP

rule def DEFID
    rule seq SEQ
    rule case TAG (PIPE TAG)* SEQ

rule rule TAG (PIPE TAG)* ARGUMENTS
    children rule
    rule children TAG (PIPE TAG)*

root-rule lex | root-rule | rule | def