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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
60 lines
1.3 KiB
Go
60 lines
1.3 KiB
Go
package compiler
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import (
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"fmt"
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)
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// MakeInstruction returns a bytecode for an opcode and the operands.
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func MakeInstruction(opcode Opcode, operands ...int) []byte {
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numOperands := OpcodeOperands[opcode]
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totalLen := 1
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for _, w := range numOperands {
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totalLen += w
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}
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instruction := make([]byte, totalLen, totalLen)
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instruction[0] = byte(opcode)
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offset := 1
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for i, o := range operands {
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width := numOperands[i]
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switch width {
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case 1:
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instruction[offset] = byte(o)
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case 2:
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n := uint16(o)
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instruction[offset] = byte(n >> 8)
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instruction[offset+1] = byte(n)
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}
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offset += width
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}
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return instruction
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}
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// FormatInstructions returns string representation of
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// bytecode instructions.
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func FormatInstructions(b []byte, posOffset int) []string {
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var out []string
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i := 0
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for i < len(b) {
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numOperands := OpcodeOperands[Opcode(b[i])]
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operands, read := ReadOperands(numOperands, b[i+1:])
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switch len(numOperands) {
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case 0:
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out = append(out, fmt.Sprintf("%04d %-7s", posOffset+i, OpcodeNames[Opcode(b[i])]))
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case 1:
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out = append(out, fmt.Sprintf("%04d %-7s %-5d", posOffset+i, OpcodeNames[Opcode(b[i])], operands[0]))
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case 2:
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out = append(out, fmt.Sprintf("%04d %-7s %-5d %-5d", posOffset+i, OpcodeNames[Opcode(b[i])], operands[0], operands[1]))
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}
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i += 1 + read
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}
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return out
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}
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