13 // output "s2:{s2:{s0 s0} x}";
14 // output "s2:{s0 x}";
40 output "1:{{a b} {c}}";
43 ids = "1":: id (" " ids &~ id ~[]*)
44 | "2":: id ( ids &~ id ~[]*)
52 output "2:{{a} 1:{{b} {c}}}";
53 output "1:{{a b} {c}}";
56 ids = "1":: id " " ids
89 output "xbx:{{a} abab:{a b} {b}}";
99 output "ac:{{2 1 2 1}}";
100 //output "a:{{2 1 2 1}}";
101 //output "c:{{c:{1 1} c:{1 1}}}";
114 c = ("c":: x "2" x "1")*
120 output "bam:{a bam:{a bam:{a x:{x}}}}";
130 output "s2:{b0 a:{a:{epsilon}}}";
131 output "b:{a:{a:{epsilon}} epsilon}";
142 output "q:{a:{s1:{epsilon}}}";
152 output "s1:{a2:{a2:{a0 b0} b0}}";
163 output "s3:{s3:{epsilon a0 epsilon epsilon} epsilon epsilon epsilon}";
164 output "s3:{s3:{epsilon epsilon epsilon epsilon} a0 epsilon epsilon}";
165 output "s3:{s3:{epsilon epsilon a0 epsilon} epsilon epsilon epsilon}";
166 output "s3:{s3:{epsilon epsilon epsilon a0} epsilon epsilon epsilon}";
167 output "s3:{epsilon epsilon a0 a0}";
168 output "s3:{s3:{s3:{epsilon epsilon epsilon epsilon} epsilon epsilon epsilon} epsilon epsilon epsilon}";
169 output "s3:{s3:{epsilon epsilon epsilon epsilon} epsilon epsilon a0}";
170 output "s3:{s3:{epsilon epsilon epsilon epsilon} epsilon a0 epsilon}";
171 output "s3:{epsilon a0 epsilon a0}";
172 output "s3:{epsilon a0 a0 epsilon}";
182 output "poo:{poo:{poox poox} poox}";
183 output "poo:{poox poo:{poox poox}}";
190 output "s:{aa:{aa:{a b} b}}";
199 output "sx:{b aa:{aa:{b b} b}}";
210 output "+:{{a} *:{{b} {c}}}";
222 output "plus:{stringify:{{a}} minus:{stringify:{{b}} times:{stringify:{{d}} stringify:{{c}}}}}";
223 output "times:{plus:{stringify:{{a}} minus:{stringify:{{b}} stringify:{{d}}}} stringify:{{c}}}";
224 output "plus:{stringify:{{a}} times:{minus:{stringify:{{b}} stringify:{{d}}} stringify:{{c}}}}";
225 output "times:{minus:{plus:{stringify:{{a}} stringify:{{b}}} stringify:{{d}}} stringify:{{c}}}";
226 output "minus:{plus:{stringify:{{a}} stringify:{{b}}} times:{stringify:{{d}} stringify:{{c}}}}";
237 id = stringify:: idl++
243 // output "times:{stringify:{{a}} times:{stringify:{{b}} stringify:{{c}}}}";
246 // s = l "=" r => "assign"
249 // | l "=" r => "assign"
250 // | r "+" r => "plus"
251 // | (r) "*" r => "times"
254 // id = idl++ => "stringify"
260 output "plus:{stringify:{{a}} times:{stringify:{{b}} stringify:{{c}}}}";
271 id = stringify:: idl++
277 output "{q:{{a a}} q:{{b b}}}";
304 output "smt:{while:{>:{{x} {0}} while:{>:{{y} {0}} sbb:{{f o o} {b a r}}}} while:{>:{{x} {0}} sbb:{while:{>:{{y} {0}} {f o o}} {b a r}}}}";
307 outdent = " " outdent " "
310 w = " " | "\n" | "\r"
316 s = smt:: !ws statement !ws statement !ws
318 block = !"\n" !indent blockBody
319 &~ !"\n" (" " !outdent " ") !(~[\ ]) !(~[]*)
321 blockBody = statement
322 > sbb:: statement ws blockBody
325 | ^"while" expr block /ws
336 ident = [a-z]++ &~ keyword
337 keyword = "if" | "then" | "else" | "while"
349 q = a3:: [a-z] [a-z] [a-z]
357 s = s:: [a-z] [a-z] [a-z] " "*
363 output "Plus:{left:{Foo} right:{{2}}}";
367 | Plus:: (left::Expra) "+" (right::Expr)
368 Expra = Foo:: ("a" | "b")
374 output "top:{a q:{{a a a}} a}";
375 s = top:: z (q::"a"*) z
380 input "if (x) if (y) z else q";
381 output "if:{ident:{{x}} else:{if:{ident:{{y}} then:{ident:{{z}}}} ident:{{q}}}}";
384 Expr = if:: "if" "(" Expr ")" IfBody /ws
386 IfBody = else:: Expr "else" Expr /ws
387 | then:: Expr &~ (~[]* "else" !Expr /ws)