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-rw-r--r--gnu/usr.bin/perl/perly.y9
1 files changed, 9 insertions, 0 deletions
diff --git a/gnu/usr.bin/perl/perly.y b/gnu/usr.bin/perl/perly.y
index 3325e5e24b3..ccff774ef95 100644
--- a/gnu/usr.bin/perl/perly.y
+++ b/gnu/usr.bin/perl/perly.y
@@ -12,6 +12,15 @@
* All that is gold does not glitter, not all those who wander are lost.'
*/
+/* This file holds the grammar for the Perl language. If edited, you need
+ * to run regen_perly.pl, which re-creates the files perly.h, perly.tab
+ * and perly.act which are derived from this.
+ *
+ * The main job of of this grammar is to call the various newFOO()
+ * functions in op.c to build a syntax tree of OP structs.
+ * It relies on the lexer in toke.c to do the tokenizing.
+ */
+
%{
#include "EXTERN.h"
#define PERL_IN_PERLY_C