move the parser to the internal dir

package.json

@@ -7,8 +7,8 @@
   "scripts": {
     "build": "npm run tsc && npm run peg",
     "build-debug": "npm run tsc && npm run peg-debug",
-    "peg": "peggy --cache -o built/parser.js --allowed-start-rules fullParser,inlineParser,plainParser src/parser.pegjs",
-    "peg-debug": "peggy --cache -o built/parser.js --allowed-start-rules fullParser,inlineParser,plainParser --trace src/parser.pegjs",
+    "peg": "peggy --cache -o built/internal/parser.js --allowed-start-rules fullParser,inlineParser,plainParser src/internal/parser.pegjs",
+    "peg-debug": "peggy --cache -o built/internal/parser.js --allowed-start-rules fullParser,inlineParser,plainParser --trace src/internal/parser.pegjs",
     "tsc": "tsc",
     "tsd": "tsd",
     "parse": "node ./built/cli/parse",

src/api.ts

 import peg from 'peggy';
 import { MfmNode, MfmPlainNode } from './node';
-import { stringifyNode, stringifyTree, inspectOne } from './util';
+import { stringifyNode, stringifyTree, inspectOne } from './internal/util';
 
-const parser: peg.Parser = require('./parser');
+const parser: peg.Parser = require('./internal/parser');
 
 /**
  * Generates a MfmNode tree from the MFM string.

src/parser.pegjs → src/internal/parser.pegjs

@@ -22,7 +22,7 @@
 		LINK,
 		FN,
 		TEXT
-	} = require('./node');
+	} = require('../node');
 
 	const {
 		mergeText,

src/util.ts → src/internal/util.ts

-import { isMfmBlock, MfmNode, TEXT } from './node';
+import { isMfmBlock, MfmNode, TEXT } from '../node';
 
 export function mergeText(nodes: (MfmNode | string)[]): MfmNode[] {
 	const dest: MfmNode[] = [];