Home Contents | # mtd16:contains | Mtd16 | Core4 Lua Commands

## SYNOPSIS

flag = msg:contains(tag)

## DESCRIPTION

Checks if msg contains a data field tagged with tag. If tag is not a number, it is looked up in the table mtd16.lutTag to get its numerical value.

## RETURN VALUE

Returns a boolean indicating the presence of tag in msg.

## ERRORS

Raises an error if msgCode could not be converted to a number by looking it up in mtd16.lutTag.

## EXAMPLE

> > >
msg = mtd16.new(0xF00F) msg:append(0x3001, "FNORD!") print(msg:contains(0x3001))
true

## SEE ALSO

#mtd16, mtd16.answerCode, mtd16.fromData, mtd16.fromText, mtd16.isNestedTag, mtd16.lutType, mtd16.new, mtd16.tagCode, mtd16.tagName, mtd16.tagNumber, mtd16.tagType, mtd16:append, mtd16:appendMessageCode, mtd16:get, mtd16:getNumber, mtd16:getString, mtd16:isEmpty, mtd16:isValid, mtd16:messageCode, mtd16:nextMessageCode, mtd16:pairs, mtd16:rewind, mtd16:tags, mtd16:toData, mtd16:toText, mtd16:trace, tostring(mtd16)