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matterbridge/vendor/github.com/d5/tengo/compiler/ast/slice_expr.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

37 lines
724 B
Go

package ast
import "github.com/d5/tengo/compiler/source"
// SliceExpr represents a slice expression.
type SliceExpr struct {
Expr Expr
LBrack source.Pos
Low Expr
High Expr
RBrack source.Pos
}
func (e *SliceExpr) exprNode() {}
// Pos returns the position of first character belonging to the node.
func (e *SliceExpr) Pos() source.Pos {
return e.Expr.Pos()
}
// End returns the position of first character immediately after the node.
func (e *SliceExpr) End() source.Pos {
return e.RBrack + 1
}
func (e *SliceExpr) String() string {
var low, high string
if e.Low != nil {
low = e.Low.String()
}
if e.High != nil {
high = e.High.String()
}
return e.Expr.String() + "[" + low + ":" + high + "]"
}