fix: skip combine jsx nodes for root/jsx node

refactor parser, make the API simple

Author: JounQin

CHANGELOG.md

@@ -2,136 +2,123 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
-### [0.9.3](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.9.1...v0.9.3) (2019-08-04)
+### [0.9.4](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.9.3...v0.9.4) (2019-08-04)
+
+### Bug Fixes
 
+- adjacent jsx nodes should be allowed in mdx ([8456381](https://github.com/rx-ts/eslint-plugin-mdx/commit/8456381))
+
+### [0.9.3](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.9.1...v0.9.3) (2019-08-04)
 
 ### Bug Fixes
 
-* error from typescript parser in plain object ([f634e40](https://github.com/rx-ts/eslint-plugin-mdx/commit/f634e40))
+- error from typescript parser in plain object ([f634e40](https://github.com/rx-ts/eslint-plugin-mdx/commit/f634e40))
 
 ### [0.9.1](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.9.0...v0.9.1) (2019-08-03)
 
-
 ### Bug Fixes
 
-* always extends base config ([530160a](https://github.com/rx-ts/eslint-plugin-mdx/commit/530160a))
+- always extends base config ([530160a](https://github.com/rx-ts/eslint-plugin-mdx/commit/530160a))
 
 ## [0.9.0](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.8.1...v0.9.0) (2019-08-03)
 
-
 ### Features
 
-* support other extensions, detect parsers automatically ([5386098](https://github.com/rx-ts/eslint-plugin-mdx/commit/5386098))
+- support other extensions, detect parsers automatically ([5386098](https://github.com/rx-ts/eslint-plugin-mdx/commit/5386098))
 
 ### [0.8.1](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.7.1...v0.8.1) (2019-08-03)
 
-
 ### Features
 
-* split into two packages, use lerna as publisher ([#22](https://github.com/rx-ts/eslint-plugin-mdx/issues/22)) ([349b1ff](https://github.com/rx-ts/eslint-plugin-mdx/commit/349b1ff)), closes [#21](https://github.com/rx-ts/eslint-plugin-mdx/issues/21)
+- split into two packages, use lerna as publisher ([#22](https://github.com/rx-ts/eslint-plugin-mdx/issues/22)) ([349b1ff](https://github.com/rx-ts/eslint-plugin-mdx/commit/349b1ff)), closes [#21](https://github.com/rx-ts/eslint-plugin-mdx/issues/21)
 
 ## [0.8.0](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.7.1...v0.8.0) (2019-08-03)
 
-
 ### Features
 
-* split into two packages, use lerna as publisher ([#22](https://github.com/rx-ts/eslint-plugin-mdx/issues/22)) ([349b1ff](https://github.com/rx-ts/eslint-plugin-mdx/commit/349b1ff)), closes [#21](https://github.com/rx-ts/eslint-plugin-mdx/issues/21)
+- split into two packages, use lerna as publisher ([#22](https://github.com/rx-ts/eslint-plugin-mdx/issues/22)) ([349b1ff](https://github.com/rx-ts/eslint-plugin-mdx/commit/349b1ff)), closes [#21](https://github.com/rx-ts/eslint-plugin-mdx/issues/21)
 
 ### [0.7.1](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.7.0...v0.7.1) (2019-08-03)
 
-
 ### Features
 
-* export a parse function for compatibility usage ([0fdaf9f](https://github.com/rx-ts/eslint-plugin-mdx/commit/0fdaf9f))
+- export a parse function for compatibility usage ([0fdaf9f](https://github.com/rx-ts/eslint-plugin-mdx/commit/0fdaf9f))
 
 ## [0.7.0](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.6.0...v0.7.0) (2019-08-02)
 
-
 ### Features
 
-* add new rule no-unescaped-entities ([dca8633](https://github.com/rx-ts/eslint-plugin-mdx/commit/dca8633))
+- add new rule no-unescaped-entities ([dca8633](https://github.com/rx-ts/eslint-plugin-mdx/commit/dca8633))
 
 ## [0.6.0](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.5.0...v0.6.0) (2019-08-02)
 
-
 ### Features
 
-* add new rule `no-jsx-html-comments`, close [#13](https://github.com/rx-ts/eslint-plugin-mdx/issues/13) ([67ba91e](https://github.com/rx-ts/eslint-plugin-mdx/commit/67ba91e))
-* processor support for normalize comments in jsx [ci skip] ([114831c](https://github.com/rx-ts/eslint-plugin-mdx/commit/114831c))
+- add new rule `no-jsx-html-comments`, close [#13](https://github.com/rx-ts/eslint-plugin-mdx/issues/13) ([67ba91e](https://github.com/rx-ts/eslint-plugin-mdx/commit/67ba91e))
+- processor support for normalize comments in jsx [ci skip](<[114831c](https://github.com/rx-ts/eslint-plugin-mdx/commit/114831c)>)
 
 ## [0.5.0](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.4.1...v0.5.0) (2019-07-31)
 
-
 ### Features
 
-* add `@rxts/mdx/no-unused-expressions` rule to replace eslint's ([5d62b55](https://github.com/rx-ts/eslint-plugin-mdx/commit/5d62b55))
+- add `@rxts/mdx/no-unused-expressions` rule to replace eslint's ([5d62b55](https://github.com/rx-ts/eslint-plugin-mdx/commit/5d62b55))
 
 ## [0.4.1](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.4.0...v0.4.1) (2019-07-31)
 
-
 ### Features
 
-* perf: extract `parseMdx`, exports everything in package ([1f965a1](https://github.com/rx-ts/eslint-plugin-mdx/commit/1f965a1))
+- perf: extract `parseMdx`, exports everything in package ([1f965a1](https://github.com/rx-ts/eslint-plugin-mdx/commit/1f965a1))
 
 ## [0.4.0](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.3.1...v0.4.0) (2019-07-31)
 
-
 ### Features
 
-* add body and comments into ast, fix [#12](https://github.com/rx-ts/eslint-plugin-mdx/issues/12) ([5b28bd5](https://github.com/rx-ts/eslint-plugin-mdx/commit/5b28bd5))
+- add body and comments into ast, fix [#12](https://github.com/rx-ts/eslint-plugin-mdx/issues/12) ([5b28bd5](https://github.com/rx-ts/eslint-plugin-mdx/commit/5b28bd5))
 
 ### [0.3.1](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.3.0...v0.3.1) (2019-07-30)
 
-
 ### Bug Fixes
 
-* `.*` could not match multi lines, use `[\s\S]*` instead, close [#4](https://github.com/rx-ts/eslint-plugin-mdx/issues/4) ([f7e7efe](https://github.com/rx-ts/eslint-plugin-mdx/commit/f7e7efe))
+- `.*` could not match multi lines, use `[\s\S]*` instead, close [#4](https://github.com/rx-ts/eslint-plugin-mdx/issues/4) ([f7e7efe](https://github.com/rx-ts/eslint-plugin-mdx/commit/f7e7efe))
 
 ## [0.3.0](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.2.1...v0.3.0) (2019-07-30)
 
-
 ### Bug Fixes
 
-* inline jsx and comment parsing error, close [#4](https://github.com/rx-ts/eslint-plugin-mdx/issues/4), [#7](https://github.com/rx-ts/eslint-plugin-mdx/issues/7) ([5297a0b](https://github.com/rx-ts/eslint-plugin-mdx/commit/5297a0b))
+- inline jsx and comment parsing error, close [#4](https://github.com/rx-ts/eslint-plugin-mdx/issues/4), [#7](https://github.com/rx-ts/eslint-plugin-mdx/issues/7) ([5297a0b](https://github.com/rx-ts/eslint-plugin-mdx/commit/5297a0b))
 
 ### [0.2.1](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.2.0...v0.2.1) (2019-07-30)
 
-
 ### Bug Fixes
 
-* eslint@5 is actually supported ([e470ddc](https://github.com/rx-ts/eslint-plugin-mdx/commit/e470ddc))
+- eslint@5 is actually supported ([e470ddc](https://github.com/rx-ts/eslint-plugin-mdx/commit/e470ddc))
 
 ## [0.2.0](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.1.3...v0.2.0) (2019-07-30)
 
-
 ### Features
 
-* support custom parser like babel-eslint ([b718574](https://github.com/rx-ts/eslint-plugin-mdx/commit/b718574))
+- support custom parser like babel-eslint ([b718574](https://github.com/rx-ts/eslint-plugin-mdx/commit/b718574))
 
 ### [0.1.3](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.1.2...v0.1.3) (2019-07-29)
 
-
 ### Bug Fixes
 
-* upgrade peer dependency eslint to >= 6.0.0 ([#3](https://github.com/rx-ts/eslint-plugin-mdx/issues/3) [#4](https://github.com/rx-ts/eslint-plugin-mdx/issues/4)) ([f0ab288](https://github.com/rx-ts/eslint-plugin-mdx/commit/f0ab288))
+- upgrade peer dependency eslint to >= 6.0.0 ([#3](https://github.com/rx-ts/eslint-plugin-mdx/issues/3) [#4](https://github.com/rx-ts/eslint-plugin-mdx/issues/4)) ([f0ab288](https://github.com/rx-ts/eslint-plugin-mdx/commit/f0ab288))
 
 ### [0.1.2](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.1.1...v0.1.2) (2019-07-29)
 
-
 ### Bug Fixes
 
-* show correct column and line on lint error ([90c5390](https://github.com/rx-ts/eslint-plugin-mdx/commit/90c5390))
+- show correct column and line on lint error ([90c5390](https://github.com/rx-ts/eslint-plugin-mdx/commit/90c5390))
 
 ### [0.1.1](https://github.com/rx-ts/eslint-plugin-mdx/compare/v0.1.0...v0.1.1) (2019-07-29)
 
-
 ### Bug Fixes
 
-* overrides in node_modules seems not working ([d2f1535](https://github.com/rx-ts/eslint-plugin-mdx/commit/d2f1535))
+- overrides in node_modules seems not working ([d2f1535](https://github.com/rx-ts/eslint-plugin-mdx/commit/d2f1535))
 
 ## 0.1.0 (2019-07-29)
 
-
 ### Features
 
-* traverse ast nodes ([6a71e25](https://github.com/rx-ts/eslint-plugin-mdx/commit/6a71e25))
+- traverse ast nodes ([6a71e25](https://github.com/rx-ts/eslint-plugin-mdx/commit/6a71e25))

packages/eslint-mdx/src/helper.ts

@@ -1,16 +1,67 @@
-import { Arrayable, JsxNode, JsxType, JsxTypes } from './types'
+// eslint-disable-next-line @typescript-eslint/no-triple-slash-reference
+/// <reference path="../typings.d.ts" />
+
+import { parse as esParse } from 'espree'
+
+import {
+  Arrayable,
+  JsxNode,
+  JsxType,
+  JsxTypes,
+  ParserOptions,
+  ParserFn,
+} from './types'
 
 import { Position } from 'unist'
 import { AST } from 'eslint'
 // `SourceLocation` is not exported from estree, but it is actually working
 // eslint-disable-next-line import/named
 import { SourceLocation } from 'estree'
 
+export const FALLBACK_PARSERS = [
+  '@typescript-eslint/parser',
+  'babel-eslint',
+] as const
+
 export const JSX_TYPES: JsxTypes = ['JSXElement', 'JSXFragment']
 
 export const isJsxNode = (node: { type: string }): node is JsxNode =>
   JSX_TYPES.includes(node.type as JsxType)
 
+export const normalizeParser = (parser: ParserOptions['parser']) => {
+  if (parser) {
+    if (typeof parser === 'string') {
+      parser = require(parser)
+    }
+
+    if (typeof parser === 'object') {
+      parser = parser.parseForESLint || parser.parse
+    }
+
+    if (typeof parser !== 'function') {
+      throw new TypeError(
+        `Invalid custom parser for \`eslint-plugin-mdx\`: ${parser}`,
+      )
+    }
+  } else {
+    // try to load FALLBACK_PARSERS automatically
+    for (const fallback of FALLBACK_PARSERS) {
+      try {
+        // eslint-disable-next-line @typescript-eslint/no-var-requires
+        const fallbackParser = require(fallback)
+        parser = fallbackParser.parseForESLint || fallbackParser.parse
+        break
+      } catch (e) {}
+    }
+
+    if (typeof parser !== 'function') {
+      parser = esParse as ParserFn
+    }
+
+    return parser
+  }
+}
+
 export const normalizePosition = (position: Position) => {
   const start = position.start.offset
   const end = position.end.offset