Implement --toggle-sort option (#173)

1 files changed, 8 insertions, 4 deletions

diff --git a/src/pattern.go b/src/pattern.go
index 7acdbcfa..fbb70c5f 100644
--- a/src/pattern.go
+++ b/src/pattern.go
@@ -54,17 +54,21 @@ var (
 )
 
 func init() {
-	// We can uniquely identify the pattern for a given string since
-	// mode and caseMode do not change while the program is running
-	_patternCache = make(map[string]*Pattern)
 	_splitRegex = regexp.MustCompile("\\s+")
-	_cache = NewChunkCache()
+	clearPatternCache()
+	clearChunkCache()
 }
 
 func clearPatternCache() {
+	// We can uniquely identify the pattern for a given string since
+	// mode and caseMode do not change while the program is running
 	_patternCache = make(map[string]*Pattern)
 }
 
+func clearChunkCache() {
+	_cache = NewChunkCache()
+}
+
 // BuildPattern builds Pattern object from the given arguments
 func BuildPattern(mode Mode, caseMode Case,
 	nth []Range, delimiter *regexp.Regexp, runes []rune) *Pattern {