branch: externals/parser-generator
commit aadb31ab2da0e22bd491fc4b803e8a0dac0d8061
Author: Christian Johansson <[email protected]>
Commit: Christian Johansson <[email protected]>
Updated README.md about FOLLOW-sets
---
README.md | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/README.md b/README.md
index fdbf223..204af73 100644
--- a/README.md
+++ b/README.md
@@ -127,7 +127,16 @@ Calculate the e-free-first look-ahead number of terminals
of sentential-form `S`
### FOLLOW(S)
-*WIP*
+Calculate the look-ahead number of terminals possibly following S.
+
+``` emacs-lisp
+(parser--set-grammar '((S A B) (a c d f) ((S (A a)) (A B) (B (c f) d)) S))
+(parser--set-look-ahead-number 2)
+(should
+ (equal
+ '((a))
+ (parser--follow 'A)))
+```
## Test
