X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=tests%2Fregression.tc;h=c72c01d79bb25580725e64e8bd9e5eaed306781f;hp=9a7ef5062056e234ec8b4eca33ccef0325cf400e;hb=b12c78430aa088df4d951f9bf323171c57bfd1c9;hpb=bc7ff8b63529e420f7caa244d3bf74471f55cb7b

diff --git a/tests/regression.tc b/tests/regression.tc
index 9a7ef50..c72c01d 100644
--- a/tests/regression.tc
+++ b/tests/regression.tc
@@ -1,152 +1,133 @@
-//testcase {
-//    input  "x";
-//    output "a1:{x}";
-//
-//    s ::= a        => a1
-//    a ::= s        => s1
-//    a ::= ^"x"
-//}
-//
-//testcase {
-//    input  "x";
-//    output "x";
-//    output "s2:{s2:{s0 s0} x}";
-//    output "s2:{s0 x}";
-//
-//
-//    s ::= s s      => s2
-//    s ::= ^"x"
-//    s ::= ()       => s0
-//}
-
-tibcase {
-    input 
-"
-  hello 
-    there
-    how
-     { are }
-";
-    output "yep";
+testcase "pathological O(n^2) behavior" {
+  input "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
+  output "x";
+          s = x:: ManyA!
+     ManyA =  ()
+            | x:: A ManyA
+          A = ()! ("a" & ManyAB)
+    ManyAB = ()
+            | "a" ManyAB
+            | "b" ManyAB
+
+}
+
+testcase "another O(n^2) example, tickles different epsilon behaviors" {
+  input "aaaa";
+  output "x:{x:{x:{x}}}";
+  s = x:: s A! | ()
+  A = "a" & B
+  B = () | B "a"
+}
 
-    s        ::= { Hello } => "yep"
-    w        ::= " " | "\n"
-    ws      !::= w**
-    Hello    ::= "hello" ws { ws "there" ws "how" ws { { "are" } ws } }
+testcase "unnamed" {
+    input "aaaaa";
+    s = A
+    A = "a" s &~ "a" A
+      | "a" A &~ "a" s
 }
 
-testcase {
+testcase "unnamed" {
     input "ab c";
     output "1:{{a b} {c}}";
 
-    s   ::= ids
-    ids ::= id (" " ids &~ id [~]*) => "1"
-          | id (    ids &~ id [~]*) => "2"
+    s     = ids
+    ids   = "1":: id (" " ids &~ id ("":: ~[]*))
+          | "2":: id (    ids &~ id ("":: ~[]*))
           | id
-    id  ::= [a-z]++
+    id    = "":: [a-z]++
 }
 
-testcase {
+testcase "unnamed" {
     input "ab c";
 
     output "2:{{a} 1:{{b} {c}}}";
     output "1:{{a b} {c}}";
 
-    s   ::= ids
-    ids ::= id " " ids => "1"
-          | id     ids => "2"
+    s     = ids
+    ids   = "1":: id " " ids
+          | "2":: id     ids
           | id
-    id  ::= [a-z]+
+    id    = "":: [a-z]+
 }
 
-testcase {
+testcase "unnamed" {
     input "aaabbbccc";
-    output "";
-
-    s   ::= ab & dc
-    ab  ::= a b
-    dc  ::= d c
-    a   ::= "a" a     | ()
-    b   ::= "b" b "c" | ()
-    c   ::= "c" c     | ()
-    d   ::= "a" d "b" | ()
+    output "ab";
+
+    s     = ab & dc
+    ab    = ab:: a b
+    dc    = dc:: d c
+    a     = "a" a     | ()
+    b     = "b" b "c" | ()
+    c     = "c" c     | ()
+    d     = "a" d "b" | ()
 }
 
-testcase {
+testcase "unnamed" {
     input "aaabbbbccc";
 
-    s   ::= ab & dc
-    ab !::= a b
-    dc !::= d c
-    a   ::= "a" a     | ()
-    b   ::= "b" b "c" | ()
-    c   ::= "c" c     | ()
-    d   ::= "a" d "b" | ()
+    s     = ab & dc
+    ab    = ab:: a b
+    dc    = dc:: d c
+    a     = "a" a     | ()
+    b     = "b" b "c" | ()
+    c     = "c" c     | ()
+    d     = "a" d "b" | ()
 }
 
-testcase {
-    input "12111211";
-    output "ac:{{2 1 2 1}}";
-    //output "a:{{2 1 2 1}}";
-    //output "c:{{c:{1 1} c:{1 1}}}";
-
-    s ::= ab => "ab"
-        | ac => "ac"
-        | bc => "bc"
-        //| a  =>  "a"
-        //| b  =>  "b"
-        //| c  =>  "c"
-    ab ::= a & b
-    ac ::= a & c
-    bc ::= b & c
-    a ::= ("1" x)*
-    b ::= (x "2" => "b")*
-    c ::= (x "2" x "1" => "c")*
-    x ::= [123]
-}
-
-testcase {
-    input  "xbambambam";
+testcase "unnamed" {
+    input "aabb";
+    output "xbx:{{a} abab:{a b} {b}}";
+
+    x     = ~[]
+    s     = xbx:: ("":: x*) b ("":: x*)
+    b     = abab:: [ab][ab]
+         &~ ("aa"|"bb")
+}
+
+testcase "unnamed" {
+    input  "qxbambambam";
     output "bam:{a bam:{a bam:{a x}}}";
 
-    s ::= a s ^"bam"
-    s ::= ^"x"
-    a ::= ()       => "a"
+    s   = "q" z
+    z   = a z ^"bam"
+        | ^"x"
+    a   = a:: ()
 }
 
-testcase {
+testcase "unnamed" {
     input  "baaaa";
     output "s2:{b0 a:{a:{epsilon}}}";
     output "b:{a:{a:{epsilon}} epsilon}";
-    s ::= b t        => "s2"
+    s   = s2:: b t
         | ^"b" t b
-    t ::= ^"a" t "a"
-        | ()         => "epsilon"
-    b ::= "b"        => "b0"
-        | ()         => "epsilon"
+    t   = ^"a" t "a"
+        | epsilon:: ()
+    b   = b0:: "b"
+        | epsilon:: ()
 }
 
-testcase {
+testcase "qaq" {
     input  "qaq";
-    output "q:{a:{s1:{epsilon}}}";
+    output "q:{a:{s1}}";
 
-    s ::= ^"q" x "q"
-    x ::= ^"a" a
-    x ::= ()        => "epsilon"
-    a ::= x         => "s1"
+    s   = ^"q" x "q"
+    x   = ^"a" a
+        | epsilon:: ()
+    a   = s1:: x
 }
 
-testcase {
+testcase "unnamed" {
     input "baa";
     output "s1:{a2:{a2:{a0 b0} b0}}";
 
-    s ::= "b" a     => "s1"
-    a ::= "a" a b   => "a2"
-        | ()        => "a0"
-    b ::= ()        => "b0"
+    s   = s1:: "b" a
+    a   = a2:: "a" a b
+        | a0:: ()
+    b   = b0:: ()
 }
 
-testcase {
+testcase "epsilon forests" {
     input  "aaa";
 
     output "s3:{s3:{epsilon a0 epsilon epsilon} epsilon epsilon epsilon}";
@@ -160,160 +141,325 @@ testcase {
     output "s3:{epsilon a0 epsilon a0}";
     output "s3:{epsilon a0 a0 epsilon}";
 
-    s ::= "a" s a a a => "s3"
-        | ()          => "epsilon"
-    a ::= "a"         => "a0"
-        | ()          => "epsilon"
+    s   = s3:: "a" s a a a
+        | epsilon:: ()
+    a   = a0:: "a"
+        | epsilon:: ()
 }
 
-testcase {
+testcase "unnamed" {
     input "aa";
     output "poo:{poo:{poox poox} poox}";
     output "poo:{poox poo:{poox poox}}";
-    s ::= s s "a"  => "poo"
-        | ()       => "poox"
+    s   = poo::  s s "a"
+        | poox:: ()
 }
 
-testcase {
+testcase "unnamed" {
     input "baa";
     output "s:{aa:{aa:{a b} b}}";
-    s ::= "b" a      => "s"
-    a ::= "a" a b    => "aa"
-    a ::= ()         => "a"
-    b ::= ()         => "b"
+    s   = s:: "b" a
+    a   = aa:: "a" a b
+        | a:: ()
+    b   = b:: ()
 }
 
-testcase {
+testcase "unnamed" {
     input "aaab";
     output "sx:{b aa:{aa:{b b} b}}";
-    s ::= b d "a" "b"  => "sx"
-    s ::= "a" d "a" d  => "sy"
-    d ::= "a" a b      => "aa"
-    a ::= "a" b b      => "aa"
-    a ::= ()           => "a"
-    b ::= ()           => "b"
+    s   = sx:: b d "a" "b"
+        | sy:: "a" d "a" d
+    d   = aa:: "a" a b
+    a   = aa:: "a" b b
+        | a::  ()
+    b   = b::  ()
 }
 
-testcase {
+testcase "a+(b*c)" {
     input "a+(b*c)";
     output "+:{{a} *:{{b} {c}}}";
 
-    s   ::= r
-    r   ::= id
+    s     = r
+    r     = id
           | r ^"*" r
           | r ^"+" r
           | "(" r ")"
-    id  ::= [a-z]++
+    id    = "":: [a-z]++
 }
 
-testcase {
+testcase "a+b-d*c" {
     input "a+b-d*c";
-    output "plus:{stringify:{{a}} minus:{stringify:{{b}} times:{stringify:{{d}} stringify:{{c}}}}}";
-    output "times:{plus:{stringify:{{a}} minus:{stringify:{{b}} stringify:{{d}}}} stringify:{{c}}}";
-    output "plus:{stringify:{{a}} times:{minus:{stringify:{{b}} stringify:{{d}}} stringify:{{c}}}}";
-    output "times:{minus:{plus:{stringify:{{a}} stringify:{{b}}} stringify:{{d}}} stringify:{{c}}}";
-    output "minus:{plus:{stringify:{{a}} stringify:{{b}}} times:{stringify:{{d}} stringify:{{c}}}}";
-    w  ::= " "
-    l  ::= id
-    s  ::= l "=" q  => "assign"
+    output "times:{plus:{stringify:{a} minus:{stringify:{b} stringify:{d}}} stringify:{c}}";
+    output "plus:{stringify:{a} times:{minus:{stringify:{b} stringify:{d}} stringify:{c}}}";
+    output "minus:{plus:{stringify:{a} stringify:{b}} times:{stringify:{d} stringify:{c}}}";
+    output "plus:{stringify:{a} minus:{stringify:{b} times:{stringify:{d} stringify:{c}}}}";
+    output "times:{minus:{plus:{stringify:{a} stringify:{b}} stringify:{d}} stringify:{c}}";
+    w    = " "
+    l    = id
+    s    = assign:: l "=" q
          | q
-    q  ::= id
-         | l "=" q       => "assign"
-         | q "-" q       => "minus"
-         | q "+" q       => "plus"
-         | q "*" q       => "times"
+    q    = id
+         | assign:: l "=" q
+         | minus:: q "-" q
+         | plus:: q "+" q
+         | times:: q "*" q
          | "(" q ")"
-    id   ::= idl++       => "stringify"
-    idl  ::= [a-d]
+    id     = stringify:: idl++
+    idl    = [a-d]
 }
 
-testcase {
-    input "a*b*c";
-    output "times:{stringify:{{a}} times:{stringify:{{b}} stringify:{{c}}}}";
-    w  ::= " "
-    l  ::= id
-    s  ::= l "=" r  => "assign"
+testcase "priority" {
+    input "a+b*c";
+    output "plus:{stringify:{a} times:{stringify:{b} stringify:{c}}}";
+    w    = " "
+    l    = id
+    s    = assign:: l "=" r
          | r
-    r  ::= l
-         | l "=" r       => "assign"
-         | r "+" r       => "plus"
-         | (r) "*" r       => "times"
+    r    = l
+         | assign:: l "=" r
+         | plus:: r "+" r
+         > times:: r "*" r
          | "(" r ")"
-         | r r           => "times"
-    id   ::= idl++       => "stringify"
-    idl  ::= [a-d]
+         | times:: r r
+    id     = stringify:: idl++
+    idl    = [a-d]
 }
 
-testcase {
-    input "a+b*c";
-    output "plus:{stringify:{{a}} times:{stringify:{{b}} stringify:{{c}}}}";
-    w  ::= " "
-    l  ::= id
-    s  ::= l "=" r  => "assign"
+testcase "associativity" {
+    input "a*b*c";
+    output "times:{stringify:{a} times:{stringify:{b} stringify:{c}}}";
+    w    = " "
+    l    = id
+    s    = assign:: l "=" r
          | r
-    r  ::= l
-         | l "=" r       => "assign"
-         | r "+" r       => "plus"
-         > r "*" r       => "times"
+    r    = l
+         | assign:: l "=" r
+         | plus:: r "+" r
+         | times:: r "*" (r)
          | "(" r ")"
-         | r r           => "times"
-    id   ::= idl++       => "stringify"
-    idl  ::= [a-d]
+         | times:: r r
+    id     = stringify:: idl++
+    idl    = [a-d]
+}
+
+testcase "unnamed" {
+  input "aa bb";
+  output "{q:{a a} q:{b b}}";
+
+  s    = "":: q */ ws
+  ws   = " "*
+  q    = q:: [a-z]++
 }
 
-testcase {
+testcase "indentation" {
 
     input "
 
 
+
  while x>0
-   while y>0
-    foo()
-     bar()
+    while y>0
+       foo()
+          bar()
+
 
  while x>0
-   while y>0
-    foo()
-   bar()
+    while y>0
+          foo()
+        bar()
+
 
 
 ";
-    output "smt:{while:{>:{{x} {0}} while:{>:{{y} {0}} sbb:{{f o o} {b a r}}}}}";
-    output "smt:{while:{>:{{x} {0}} sbb:{while:{>:{{y} {0}} {f o o}} {b a r}}}}";
+  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}}}}";
 
-indent  !::= ww
-outdent !::= " "  outdent " "
-           | " "  ([~]*)  "\n"
+indent    = ww
+outdent   = " "  outdent " "
+          | " "  ("":: (~[])*)  "\n"
 
-any      !::= [~]*
-s         ::= any "\n\n" ww statement ww "\n\n" any => smt
-ww       !::= sp*
-ws       !::= sp**
-sp        ::= " "
+w          = " " | "\n" | "\r"
+ws         = "":: w*
+ww         = "":: sp*
+sp         = " "
+any        = "":: (~[])*
 
-block     ::= "\n" indent  blockBody
-           &~ "\n" outdent [~\ ] [~]*
+s          = smt:: ws! statement ws! statement ws!
 
-blockBody ::= statement
-            > statement blockBody /ws => "sbb"
+block       =        "\n" indent!  blockBody
+           &~        "\n" (" " outdent! " ") ~[\ ]! ("":: ~[]*)!
 
-statement ::= call
+blockBody   =       statement
+            > sbb:: statement ws blockBody
+
+statement   = call
             | ^"while" expr block /ws
 
-expr      ::= ident
+expr        = ident
             | call
             | expr ^">" expr   /ws
             | num
 
-call      ::= expr "()"        /ws
+call        = expr "()"        /ws
+
+num         = "":: [0-9]++
+
+ident       = "":: [a-z]++ &~ keyword
+keyword     = "if" | "then" | "else" | "while"
+
+
+
+}
+
+
+testcase "unnamed" {
+    input "abc                         ";
+
+    s     = s2:: q " "*
+    q     = a3:: [a-z] [a-z] [a-z]
+         &~ ("":: ~[])! "b" ("":: ~[]*)!
+}
+
+testcase "unnamed" {
+    input "abc                         ";
+    output "s:{a b c}";
+
+    s     = s:: [a-z] [a-z] [a-z] " "*
+}
+
+testcase "a+2" {
+
+    input "a+2";
+    output "Plus:{left:{Foo} right:{{2}}}";
+
+    s       = Expr
+    Expr    = "":: [0-9]++
+            | Plus:: (left::Expra) "+" (right::Expr)
+    Expra   = Foo:: ("a" | "b")
+
+}
+
+testcase "unnamed" {
+    input "aaaaa";
+    output "top:{a q a}";
+
+    s = top:: z (q::"a"*) z
+    z = a:: "a"
+}
+
+testcase "dangling else" {
+    input  "if (x) if (y) z else q";
+    output "if:{ident:{x} else:{if:{ident:{y} then:{ident:{z}}} ident:{q}}}";
 
-num       ::= [0-9]++
+    s      = Expr
+    Expr   = if::     "if" "(" Expr ")" IfBody     /ws
+           | ident::  [a-z]++
+    IfBody = else::   Expr            "else"  Expr /ws
+           | then::   Expr &~   (("":: (~[])*) "else" Expr! /ws)
+    ws     = "":: [ ]**
+}
 
-ident     ::= [a-z]++ &~ keyword
-keyword   ::= "if" | "then" | "else" | "while"
 
-w         ::= " " | "\n" | "\r"
-ws        ::= w*
+testcase "unnamed" {
+    input "12111211";
+    output "ac:{{2 1 2 1}}";
 
+    s   = ab:: ab
+        | ac:: ac
+        | bc:: bc
+    ab   = a & b
+    ac   = a & c
+    bc   = b & c
+    a   = "":: ("1" x)*
+    b   = "":: ("b":: x "2")*
+    c   = "":: ("c":: x "2" x "1")*
+    x   = [123]
+}
 
+testcase "follow restrictions on empty string" {
+  input "xxx";
+  s = x:: "x" A "x" C "x"
+  A = B
+  B = "y"
+    | () -> ~"x"
+  C = D -> ~"x"
+  D = ()
 }
+
+testcase "unnamed" {
+  input "axxxxxc";
+  output "q:{a {x x x x x} c}";
+  s  = q:: A ws (B|()) ws C
+  ws = "":: [x]**
+  A  = a:: "a"
+  B  = b:: "b"
+  C  = c:: "c"
+}
+
+testcase "unnamed" {
+  input "aaaaaaaaaaaaaaaaaaaa";
+  output "";
+  s = As & AAs
+  As = () | As "a"
+  AAs = () | AAs "aa"
+}
+
+testcase "question mark" {
+  input "aa aba abba";
+  output "s:{Y Y Z}";
+  s = s:: X " " X " " X
+  X = Y > Z
+  Y = Y:: "a" B? "a"
+  Z = Z:: "a" "b"* "a"
+  B = "b"
+}
+
+testcase "operator: ... " {
+  input "aaabbbaaa abababababa";
+  output "s:{C:{a a a b b b a a a} B:{a b a b a b a b a b a}}";
+  s:: = A " " A
+  A   = B > C
+  B:: = [ab]* &~ (... "bbb" ...)
+  C:: = [ab]*
+}
+
+testcase "operator: ~~" {
+  input "aaabbbaaa abababababa";
+  output "s:{C:{a a a b b b a a a} B:{a b a b a b a b a b a}}";
+  s:: = A " " A
+  A   = B > C
+  B:: = ~~(... "bbb" ...)
+  C:: = [ab]*
+}
+
+testcase "lifts" {
+    input "a+(b*c)";
+    output "+:{a *:{id:{b} c}}";
+
+    s     = r
+    r     = id
+          | r ^"*" `r
+          | `r ^"+" r
+          | "(" r ")"
+    id::  = [a-z]++
+}
+
+testcase "epsilon as a positive conjunct" {
+    input "abababab";
+    s:: = X*
+    X:: = "a" ("b"+ & ())
+}
+
+testcase "ensure sharing of so-called reduction nodes" {
+    input "a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a ";
+    ignore output;
+    s:: = (S!)+
+    S:: = A:: "a "
+        | B:: "a "
+}
+
+testcase "epsilon as a negative conjunct" {
+    input "aaaaa";
+    s:: = X*
+    X:: = "a" ("b"* &~ ())
+}
+