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expander-base-funcs.go -- Added two functions: __map, and __mapNC

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This commit is contained in:
Celestino Amoroso 2025-06-18 19:06:55 +02:00
parent b1fdc7d511
commit ab722abe2d
2 changed files with 34 additions and 0 deletions
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3
dict-set-context_test.go
View File

@ -35,6 +35,9 @@ func TestNewDictSetContext(t *testing.T) {
now := time.Now()
yday := now.Add(-24 * time.Hour)
inputs := []inputType{
{ctx1, "${|__default two|__map : 'one:1' 'two:2' 'six:6'}", "2", nil},
{ctx1, "${|__default two|__map : 'one:1' 'TWO:2' 'six:6'}", "", nil},
{ctx1, "${|__default two|__mapNC : 'one:1' 'TWO:2' 'six:6'}", "2", nil},
{ctx2, `form: ${|__time-fmt now ""}`, fmt.Sprintf("form: %d-%02d-%02d %02d:%02d:%02d", now.Year(), now.Month(), now.Day(), now.Hour(), now.Minute(), now.Second()), nil},
{ctx2, `form: ${|__time-fmt now "%-D"}`, fmt.Sprintf("form: %d-%d-%d", now.Year(), now.Month(), now.Day()), nil},
{ctx2, `form: ${|__time-fmt now "%:T"}`, fmt.Sprintf("form: %d:%d:%d", now.Hour(), now.Minute(), now.Second()), nil},

31
expander-base-funcs.go
View File

@ -84,6 +84,35 @@ func ExFuncTrimSuffix(ctx ExpanderContext, varValue string, args []string) (resu
return
}
func ExFuncMap(ctx ExpanderContext, varValue string, args []string) (result string, err error) {
sep := args[0]
for _, pairSpec := range args[1:] {
pair := strings.SplitN(pairSpec, sep, 2)
if pair[0] == varValue {
if len(pair) == 2 {
result = pair[1]
}
break
}
}
return
}
func ExFuncMapNC(ctx ExpanderContext, varValue string, args []string) (result string, err error) {
sep := args[0]
varValue = strings.ToLower(varValue)
for _, pairSpec := range args[1:] {
pair := strings.SplitN(pairSpec, sep, 2)
if strings.ToLower(pair[0]) == varValue {
if len(pair) == 2 {
result = pair[1]
}
break
}
}
return
}
func AddBaseFuncs(ctx ExpanderContext) ExpanderContext {
ctx.AddFunc("__default", ExFuncDefault, 0, -1, "Returns the flow value if not empty, else all args joined; first arg is used as separator.")
ctx.AddFunc("__get", ExFuncGet, 0, 2, "Returns the value of the specified variable (arg1). With no arguments it returns the value of the variable having the flow value as name (same as __get ${.}). Arg2 is the default value. ")
@ -92,5 +121,7 @@ func AddBaseFuncs(ctx ExpanderContext) ExpanderContext {
ctx.AddFunc("__lower", ExFuncLower, 0, 0, "Changes the flow value to lower case.")
ctx.AddFunc("__upper", ExFuncUpper, 0, 0, "Changes the flow value to upper case.")
ctx.AddFunc("__trim-suffix", ExFuncTrimSuffix, 1, 1, "Removes the specified suffix (arg1) from the flow.")
ctx.AddFunc("__map", ExFuncMap, 1, 1, "Returns the value mapped by the flow value as a key; e.g. two __map : 'one:1' 'two:2' 'six:6' returns 2")
ctx.AddFunc("__mapNC", ExFuncMapNC, 1, 1, "Same as __map but this comapares keys ignoring case differencies; e.g. two __map : 'ONE:1' 'Two:2' 'sIX:6' returns 2")
return ctx
}