added indexOf

functions.go

@@ -64,6 +64,7 @@ func templateFunctions() template.FuncMap {
 		"trim":            trim,
 		"trimAll":         trimAll,
 		"trimSuffix":      trimSuffix,
+		"indexOf":         indexOf,
 		"trimPrefix":      trimPrefix,
 		"atoi":            atoi,
 		"toBool":          toBool,
@@ -345,7 +346,13 @@ func trimPrefix(a, b string) string { return strings.TrimPrefix(a, b) }
 // trimSuffix - {{trimSuffix "!Hello World!" "!"}} - returns "!HelloWorld"
 func trimSuffix(a, b string) string { return strings.TrimSuffix(a, b) }
 
-// - atoi {{atoi "42"}} - string to int
+// indexOf {{indexOf "abcd", "bc"}} -> 1
+// TODO: add to tests and documentation
+func indexOf(a, b string) int {
+	return strings.Index(a, b)
+}
+
+// atoi {{atoi "42"}} - string to int
 func atoi(a string) int { i, _ := strconv.Atoi(a); return i }
 
 func toBool(v interface{}) bool {

go.mod

@@ -5,7 +5,7 @@ go 1.21.4
 require (
 	github.com/clbanning/mxj/v2 v2.5.5
 	github.com/google/uuid v1.3.0
-	github.com/mmalcek/mt940 v0.0.3
+	github.com/mmalcek/mt940 v0.0.4
 	github.com/shopspring/decimal v1.3.1
 	github.com/spf13/cast v1.4.1
 	github.com/yuin/gopher-lua v0.0.0-20210529063254-f4c35e4016d9

go.sum

@@ -20,8 +20,8 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/mmalcek/mt940 v0.0.3 h1:yBFqyIaghCERkAc3oeAUluhTjnApCN8flXOvJ1JTBkg=
-github.com/mmalcek/mt940 v0.0.3/go.mod h1:DKDmNW/6NI04F2d7G77auppzg1Ylis5m7Whrq3fR8x0=
+github.com/mmalcek/mt940 v0.0.4 h1:1npu4EFifUurohHwB4puA/DvI2X92kSE8crP+zvAZlg=
+github.com/mmalcek/mt940 v0.0.4/go.mod h1:DKDmNW/6NI04F2d7G77auppzg1Ylis5m7Whrq3fR8x0=
 github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe/go.mod h1:wL8QJuTMNUDYhXwkmfOly8iTdp5TEcJFWZD2D7SIkUc=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=