1 files changed, 17 insertions, 0 deletions
diff --git a/modules/regex.inc b/modules/regex.inc
new file mode 100644
index 0000000..21c3d65
--- /dev/null
+++ b/modules/regex.inc
@@ -0,0 +1,17 @@
+#!/bin/ash
+
+# Match $1 against perl regex $2, case insensitive
+regex_imatch() {
+	printf "%s" "$1" | grep -qPi "$2"
+}
+
+# Escapes $1 for use in grep -E/-P, sed -r, etc.
+# Pass --slash to escape '/' too. (e.g. for sed)
+regex_escape() {
+	if [ "x$1" = "x--slash" ]; then
+		printf "%s" "$2" | sed 's,[][()\.^$?*+/],\\&,g'
+	else
+		printf "%s" "$1" | sed 's/[][()\.^$?*+]/\\&/g'
+	fi
+}
+