branch: externals/parser-generator
commit 19667b3ed8c3bae325024eb5a380fb4de29b7ce8
Author: Christian Johansson <christ...@cvj.se>
Commit: Christian Johansson <christ...@cvj.se>
Added failing unit test for translation
---
test/parser-generator-lr-test.el | 54 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/test/parser-generator-lr-test.el b/test/parser-generator-lr-test.el
index 8c21eea..0a3215b 100644
--- a/test/parser-generator-lr-test.el
+++ b/test/parser-generator-lr-test.el
@@ -355,6 +355,60 @@
(parser-generator-lr--parse)))
(kill-buffer buffer))
+ (message "Passed test with translation 1")
+
+ (let ((buffer (generate-new-buffer "*a*")))
+ (switch-to-buffer buffer)
+ (insert "if (a) { b; }")
+
+ (parser-generator-set-grammar '((Sp S) (";" OPEN_ROUND_BRACKET
CLOSE_ROUND_BRACKET IF OPEN_CURLY_BRACKET CLOSE_CURLY_BRACKET VARIABLE) ((Sp S)
(S (IF OPEN_ROUND_BRACKET VARIABLE CLOSE_ROUND_BRACKET OPEN_CURLY_BRACKET
VARIABLE CLOSE_CURLY_BRACKET (lambda(args) (nreverse args))))) Sp))
+ (parser-generator-set-look-ahead-number 1)
+ (parser-generator-process-grammar)
+ (parser-generator-lr-generate-parser-tables)
+
+ (setq
+ parser-generator-lex-analyzer--function
+ (lambda (index)
+ (with-current-buffer buffer
+ (goto-char index)
+ (unless (looking-at "[^ \n\t]")
+ (search-forward-regexp "[^ \n\t]")
+ (forward-char -1))
+ (let ((token))
+ (cond
+ ((looking-at "if")
+ (setq token `(IF ,(match-beginning 0) . ,(match-end 0))))
+ ((looking-at "(")
+ (setq token `(OPEN_ROUND_BRACKET ,(match-beginning 0) .
,(match-end 0))))
+ ((looking-at ")")
+ (setq token `(CLOSE_ROUND_BRACKET ,(match-beginning 0) .
,(match-end 0))))
+ ((looking-at "{")
+ (setq token `(OPEN_CURLY_BRACKET ,(match-beginning 0) .
,(match-end 0))))
+ ((looking-at "}")
+ (setq token `(CLOSE_CURLY_BRACKET ,(match-beginning 0) .
,(match-end 0))))
+ ((looking-at ";")
+ (setq token `(";" ,(match-beginning 0) . ,(match-end 0))))
+ ((looking-at "[a-zA-Z]+")
+ (setq token `(VARIABLE ,(match-beginning 0) . ,(match-end 0)))))
+ (message "Token: %s, index: %s, point: %s" token index (point))
+ token))))
+
+ (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
+ '((2 2 2 1 1) ("b" "a" "b" "a"))
+ (parser-generator-lr--parse)))
+
+ (kill-buffer buffer))
+ (message "Passed test with translation 2")
(message "Passed tests for (parser-generator-lr--parse)"))
