branch: externals/parser-generator
commit a796d8d4cb718212b6f4a351f664ba898c8b77c3
Author: Christian Johansson <[email protected]>
Commit: Christian Johansson <[email protected]>
Added another passing unit test for k=2
---
test/parser-generator-lr-test.el | 53 +++++++++++++++++++++++++++++++++++++++-
1 file changed, 52 insertions(+), 1 deletion(-)
diff --git a/test/parser-generator-lr-test.el b/test/parser-generator-lr-test.el
index ad7b446..69ae4c6 100644
--- a/test/parser-generator-lr-test.el
+++ b/test/parser-generator-lr-test.el
@@ -630,7 +630,58 @@
)
- ;; TODO Test parse and translate here
+ (let ((buffer (generate-new-buffer "*a*")))
+ (switch-to-buffer buffer)
+ (kill-region (point-min) (point-max))
+ (insert "abac")
+
+ (parser-generator-set-grammar
+ '((Sp S R T) ("a" "b" "c") ((Sp S) (S (R S) (R)) (R ("a" "b" T)) (T ("a"
T) ("c") (e))) Sp))
+ (parser-generator-set-look-ahead-number 2)
+ (parser-generator-process-grammar)
+ (parser-generator-lr-generate-parser-tables)
+
+ ;; Setup lex-analyzer
+ (setq
+ parser-generator-lex-analyzer--function
+ (lambda (index)
+ (with-current-buffer buffer
+ (when (<= (+ index 1) (point-max))
+ (let ((start index)
+ (end (+ index 1)))
+ (let ((token (buffer-substring-no-properties start end)))
+ `(,token ,start . ,end)))))))
+ (setq
+ parser-generator-lex-analyzer--get-function
+ (lambda (token)
+ (with-current-buffer buffer
+ (let ((start (car (cdr token)))
+ (end (cdr (cdr token))))
+ (when (<= end (point-max))
+ (buffer-substring-no-properties start end))))))
+
+ (should
+ (equal
+ '(5 4 3 2)
+ (parser-generator-lr-parse)))
+
+ (message "Passed parse with k = 2 # 1")
+
+ (switch-to-buffer buffer)
+ (kill-region (point-min) (point-max))
+ (insert "aba")
+
+ (should
+ (equal
+ '(6 4 3 2)
+ (parser-generator-lr-parse)))
+
+ (message "Passed parse with k = 2 # 2")
+
+ (kill-buffer))
+
+ ;; TODO Test translate here
+
(message "Passed tests for (parser-generator-lr--parse-k-2)"))
