Added the transitive_closure, ieee754, and amatch extensions.

FossilOrigin-Name: 84018099c8715b982cd24ce9221f93c7379e8c08

1 files changed, 10 insertions, 1 deletions

diff --git a/ext/misc/regexp.c b/ext/misc/regexp.c
index cb39956da..16fa7d0b9 100644
--- a/ext/misc/regexp.c
+++ b/ext/misc/regexp.c
@@ -12,7 +12,16 @@
 **
 ** The code in this file implements a compact but reasonably
 ** efficient regular-expression matcher for posix extended regular
-** expressions against UTF8 text.  The following syntax is supported:
+** expressions against UTF8 text.
+**
+** This file is an SQLite extension.  It registers a single function
+** named "regexp(A,B)" where A is the regular expression and B is the
+** string to be matched.  By registering this function, SQLite will also
+** then implement the "B regexp A" operator.  Note that with the function
+** the regular expression comes first, but with the operator it comes
+** second.
+**
+**  The following regular expression syntax is supported:
 **
 **     X*      zero or more occurrences of X
 **     X+      one or more occurrences of X