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This commit is contained in:
Max Brunsfeld 2014-03-26 00:10:59 -07:00
parent 316adc7788
commit 09e28e7859
8 changed files with 56 additions and 80 deletions
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4
spec/runtime/languages/arithmetic/errors.txt
View file

@ -11,6 +11,6 @@ recovers from errors inside parenthesized expressions
x + (y * + z) * 5
---
(expression
(term (factor (variable)))
(variable)
(plus)
(term (factor (ERROR)) (times) (factor (number))))
(term (factor (ERROR)) (times) (number)))

22
spec/runtime/languages/arithmetic/main.txt
View file

@ -3,14 +3,14 @@ parses numbers
===================
5
---
(expression (term (factor (number))))
(expression (number))
===================
parses variables
===================
x
---
(expression (term (factor (variable))))
(expression (variable))
===================
parses products
@ -18,9 +18,9 @@ parses products
x * x
---
(expression (term
(factor (variable))
(variable)
(times)
(factor (variable))))
(variable)))
===================
parses sums
@ -28,9 +28,9 @@ parses sums
x + x
---
(expression
(term (factor (variable)))
(variable)
(plus)
(term (factor (variable))))
(variable))
====================
parses complex trees
@ -38,17 +38,17 @@ parses complex trees
x * y + z * a
---
(expression
(term (factor (variable)) (times) (factor (variable)))
(term (variable) (times) (variable))
(plus)
(term (factor (variable)) (times) (factor (variable))))
(term (variable) (times) (variable)))
=================================
handles parenthesized expressions
=================================
x * (y + z)
---
(expression
(term (factor (variable))
(expression (term
(variable)
(times)
(factor (expression (term (factor (variable))) (plus) (term (factor (variable)))))))
(factor (expression (variable) (plus) (variable)))))