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-rw-r--r--src/HelpFile2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/HelpFile b/src/HelpFile
index 430939c1b..3560141c9 100644
--- a/src/HelpFile
+++ b/src/HelpFile
@@ -19,6 +19,7 @@ i, import: i File
.gfc canonical GF
.gfr precompiled GF resource
.gfcm multilingual canonical GF
+ .gfe example-based grammar files (only with the -ex option)
.ebnf Extended BNF format
.cf Context-free (BNF) format
options:
@@ -32,6 +33,7 @@ i, import: i File
-cflexer build an optimized parser with separate lexer trie
-noemit do not emit code (default with old grammar format)
-o do emit code (default with new grammar format)
+ -ex preprocess .gfe files if needed
flags:
-abs set the name used for abstract syntax (with -old option)
-cnc set the name used for concrete syntax (with -old option)