bug-input-rules-prosemirror.js

const {EditorState} = require("prosemirror-state")
const {EditorView} = require("prosemirror-view")
const {Schema, DOMParser} = require("prosemirror-model")
const {schema} = require("prosemirror-schema-basic")
const {addListNodes} = require("prosemirror-schema-list")
const {exampleSetup} = require("prosemirror-example-setup")
const { inputRules, InputRule } = require("prosemirror-inputrules")


const starRule = new InputRule(/\*(.+)\*/, (state, match, start, end) => {
        console.log("triggered star rule")
        console.log({start, end, "match.index": match.index})
        if (match.index !== start - 1) {
          console.warn("match and start mismatch")
        }
        return null
    })

// Mix the nodes from prosemirror-schema-list into the basic schema to
// create a schema with list support.
const mySchema = new Schema({
  nodes: addListNodes(schema.spec.nodes, "paragraph block*", "block"),
  marks: schema.spec.marks
})

window.view = new EditorView(document.querySelector("#editor"), {
  state: EditorState.create({
    doc: DOMParser.fromSchema(mySchema).parse(document.querySelector("#content")),
    plugins: [...exampleSetup({schema: mySchema}),
              inputRules({rules: [
                starRule
              ]})
            ]
  })
})