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matterbridge/vendor/github.com/d5/tengo/objects/builtin_len.go
Wim 1bb39eba87
Add scripting (tengo) support for every incoming message (#731)
TengoModifyMessage allows you to specify the location of a tengo (https://github.com/d5/tengo/) script.
This script will receive every incoming message and can be used to modify the Username and the Text of that message.
The script will have the following global variables:
to modify: msgUsername and msgText
to read: msgChannel and msgAccount

The script is reloaded on every message, so you can modify the script on the fly.

Example script can be found in https://github.com/42wim/matterbridge/tree/master/gateway/bench.tengo
and https://github.com/42wim/matterbridge/tree/master/contrib/example.tengo

The example below will check if the text contains blah and if so, it'll replace the text and the username of that message.
text := import("text")
if text.re_match("blah",msgText) {
    msgText="replaced by this"
    msgUsername="fakeuser"
}

More information about tengo on: https://github.com/d5/tengo/blob/master/docs/tutorial.md and
https://github.com/d5/tengo/blob/master/docs/stdlib.md
2019-02-23 16:39:44 +01:00

30 lines
725 B
Go

package objects
// len(obj object) => int
func builtinLen(args ...Object) (Object, error) {
if len(args) != 1 {
return nil, ErrWrongNumArguments
}
switch arg := args[0].(type) {
case *Array:
return &Int{Value: int64(len(arg.Value))}, nil
case *ImmutableArray:
return &Int{Value: int64(len(arg.Value))}, nil
case *String:
return &Int{Value: int64(len(arg.Value))}, nil
case *Bytes:
return &Int{Value: int64(len(arg.Value))}, nil
case *Map:
return &Int{Value: int64(len(arg.Value))}, nil
case *ImmutableMap:
return &Int{Value: int64(len(arg.Value))}, nil
default:
return nil, ErrInvalidArgumentType{
Name: "first",
Expected: "array/string/bytes/map",
Found: arg.TypeName(),
}
}
}