branch: externals/parser-generator
commit 563cbddc04ae78532e775e72fd77c070d3237301
Author: Christian Johansson <[email protected]>
Commit: Christian Johansson <[email protected]>
Passed FIRST tests for semi-complex grammar
---
parser.el | 3 ++-
test/parser-test.el | 10 +++++-----
2 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/parser.el b/parser.el
index 053720b..be01ce3 100644
--- a/parser.el
+++ b/parser.el
@@ -364,7 +364,8 @@
((parser--valid-e-p rhs-element)
(setq rhs-type 'EMPTY))
((parser--valid-terminal-p rhs-element)
- (setq rhs-type 'TERMINAL)))
+ (setq rhs-type 'TERMINAL))
+ (t (error (format "Invalid symbol %s" rhs-element))))
(parser--debug (message "rhs-type: %s" rhs-type))
(cond
diff --git a/test/parser-test.el b/test/parser-test.el
index 1c7ef74..2004fa3 100644
--- a/test/parser-test.el
+++ b/test/parser-test.el
@@ -70,24 +70,24 @@
(parser--first 'S)))
(message "Passed first 3 with intermediate grammar")
- (parser--set-grammar '((S A B) ("c" "d") ((S A) (A B) (B c d)) S) 1)
+ (parser--set-grammar '((S A B) ("c" "d") ((S A) (A B) (B "c" "d")) S) 1)
(should
(equal
- '((c) (d))
+ '(("d") ("c"))
(parser--first 'S)))
(message "Passed first 1 with semi-complex grammar")
- (parser--set-grammar '((S A B) (a c d f) ((S A a) (A B) (B (c f) d)) S) 2)
+ (parser--set-grammar '((S A B) (a c d f) ((S (A a)) (A B) (B (c f) d)) S) 2)
(should
(equal
- '((c f) (d a))
+ '((d a) (c f))
(parser--first 'S)))
(message "Passed first 2 with semi-complex grammar")
(parser--set-grammar '((S A B) ("a" "c" "d" "m") ((S A) (A (B "a" "m")) (B
"c" "d")) S) 3)
(should
(equal
- '(("c" "a" "m") ("d" "a" "m"))
+ '(("d" "a" "m") ("c" "a" "m"))
(parser--first 'S)))
(message "Passed first 3 with semi-complex grammar")
