branch: externals/parser-generator
commit 2e76c4b57eca28495014e42d5d4d5a140624785e
Author: Christian Johansson <[email protected]>
Commit: Christian Johansson <[email protected]>
Added TODO items
---
parser-generator-ll.el | 42 +++++++++++++++++++++++++++++++++-------
test/parser-generator-ll-test.el | 31 ++++++++++++++++++++++++++---
2 files changed, 63 insertions(+), 10 deletions(-)
diff --git a/parser-generator-ll.el b/parser-generator-ll.el
index 5c830d728e..7ce053e521 100644
--- a/parser-generator-ll.el
+++ b/parser-generator-ll.el
@@ -30,13 +30,40 @@
(message "\n;; Starting generation of LL(k) parser-tables..\n")
(unless (parser-generator-ll--valid-grammar-p)
(error "Invalid grammar specified!"))
- (let ((parsing-table)
- (parser-generator-ll--generate-parsing-table
- (parser-generator-ll--generate-tables)))
- ;; TODO Generate hash-based parsing table here
+ (let ((list-parsing-table
+ (parser-generator-ll--generate-parsing-table
+ (parser-generator-ll--generate-tables)))
+ (hash-parsing-table (make-hash-table :test 'equal)))
+ (dolist (state-list list-parsing-table)
+ (let ((state-key (nth 0 state-list))
+ (state-look-aheads (nth 1 state-list))
+ (state-hash-table (make-hash-table :test 'equal)))
+ (dolist (state-look-ahead-list state-look-aheads)
+ (let ((state-look-ahead-string (nth 0 state-look-ahead-list))
+ (state-look-ahead-action (nth 1 state-look-ahead-list)))
+ (if (equal state-look-ahead-action 'reduce)
+ (let ((state-look-ahead-reduction
+ (nth 2 state-look-ahead-list))
+ (state-look-ahead-production-number
+ (nth 3 state-look-ahead-list)))
+ (puthash
+ state-look-ahead-string
+ (list
+ state-look-ahead-action
+ state-look-ahead-reduction
+ state-look-ahead-production-number)
+ state-hash-table))
+ (puthash
+ state-look-ahead-string
+ state-look-ahead-action
+ state-hash-table))))
+ (puthash
+ state-key
+ state-hash-table
+ hash-parsing-table)))
(setq
parser-generator-ll--parsing-table
- parsing-table))
+ hash-parsing-table))
(message "\n;; Completed generation of LL(k) parser-tables.\n"))
@@ -351,8 +378,9 @@
(list
parser-generator--eof-identifier
(list
- eof-look-ahead
- 'accept))
+ (list
+ eof-look-ahead
+ 'accept)))
parsing-table)
(let ((stack-item (nth 0 terminal-mutation)))
(when (and
diff --git a/test/parser-generator-ll-test.el b/test/parser-generator-ll-test.el
index 96bda89fe0..f2c6f0554d 100644
--- a/test/parser-generator-ll-test.el
+++ b/test/parser-generator-ll-test.el
@@ -186,7 +186,9 @@
)
(
$
- (($ $) accept)
+ (
+ (($ $) accept)
+ )
)
)
parser-tables)))
@@ -262,7 +264,9 @@
)
(
$
- (($ $) accept)
+ (
+ (($ $) accept)
+ )
)
)
parser-tables)))
@@ -285,7 +289,28 @@
"Test `parser-generator-ll-generate-parser-tables'."
(message "Started tests for (parser-generator-ll-generate-parser-tables)")
- ;; TODO Do testing of hash-table generation here
+ (parser-generator-set-eof-identifier '$)
+ (parser-generator-set-e-identifier 'e)
+ (parser-generator-set-look-ahead-number 2)
+ (parser-generator-set-grammar
+ '(
+ (S A)
+ (a b)
+ (
+ (S e (a b A))
+ (A (S a a) b)
+ )
+ S
+ )
+ )
+ (parser-generator-process-grammar)
+ (parser-generator-ll-generate-parser-tables)
+ (message "parser-generator-ll--parsing-table: %S"
parser-generator-ll--parsing-table)
+ (should
+ (equal
+ #s(hash-table size 65 test equal rehash-size 1.5 rehash-threshold 0.8125
data (((S) ($)) #s(hash-table size 65 test equal rehash-size 1.5
rehash-threshold 0.8125 data ((a b) (reduce (a b ((A) ($))) 1) ($ $) (reduce
(e) 0))) ((A) ($)) #s(hash-table size 65 test equal rehash-size 1.5
rehash-threshold 0.8125 data ((b $) (reduce (b) 3) (a a) (reduce (((S) (a a)) a
a) 2) (a b) (reduce (((S) (a a)) a a) 2))) ((S) (a a)) #s(hash-table size 65
test equal rehash-size 1.5 rehash-threshold 0.81 [...]
+ parser-generator-ll--parsing-table))
+ ;; TODO Make this pass
(message "Passed tests for (parser-generator-ll-generate-parser-tables)"))
