``` fun match block MatchBuilder gt Unit = val matchBuilder kotlinlang #dsl

fun match(block: MatchBuilder.() -> Unit = {}) {
        val matchBuilder = MatchBuilder()
        matchBuilder.block()
        match = match.plus(matchBuilder.build())
    }

dave08

11/26/2018, 3:16 AM

match = match.plus? What's match here? I think you mean

return matchBuilder.build()

What does the builder return? If Regex, just

infix fun Regex.with(toMatch: String) = toMatch.match(this)

@tjb

tjb

11/26/2018, 3:18 PM

Ah sorry i should have added more code.

match

is an array of

Match

objects. I need to be able to have multiple

match

blocks in my DSL

Example:

val m = builder {
        match {
            optional = true
            node {
                alias = "firstField"
                node = "Field"
                parameters = hashMapOf("id" to "12345", "hasTime" to false)
            }
        }

        match {
            node {
                alias = "secondField"
                node = "Field"
                parameters = hashMapOf("id" to "12345", "hasTime" to false)
            }
        }
    }

dave08

11/26/2018, 3:28 PM

You initialize

once and re-use it?

tjb

11/26/2018, 3:29 PM

no i do not

just once which is what i want

dave08

11/26/2018, 3:30 PM

Like the initialization of a server?

And how do you run the match?

tjb

11/26/2018, 3:31 PM

essentially this DSL is a query builder for neo4j. neo4j has a

WITH

clause and im struggling how to implement the

WITH

clause since its a separate method over

MATCH

my initial thought was to make

WITH

its own builder but it seems like that shouldnt be the right move.

ideally i want to do

match {
            node {
                alias = "secondField"
                node = "Field"
                parameters = hashMapOf("id" to "12345", "hasTime" to false)
            }
        }
        
        with "hello, world, right, here"

but not sure how to implement the

with

here

dave08

11/26/2018, 3:33 PM

You can get ideas of a db dsl here: https://github.com/orangy/squash

But I'm not sure if that's a bit heavy for your needs

There's also https://github.com/JetBrains/Exposed

tjb

11/26/2018, 3:34 PM

ok cool i will take a look! yeah im just making a proof of concept right now

i appreciate the insight!

dave08

11/26/2018, 3:35 PM

no problem

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