Commit js, ts, and definitions in separate folders

ts_src/templates/scripthash/index.ts

@@ -0,0 +1,7 @@
+import * as input from './input'
+import * as output from './output'
+
+export {
+  input,
+  output,
+}

ts_src/templates/scripthash/input.ts

@@ -0,0 +1,46 @@
+// <scriptSig> {serialized scriptPubKey script}
+
+import * as bscript from '../../script'
+import * as p2ms from '../multisig'
+import * as p2pk from '../pubkey'
+import * as p2pkh from '../pubkeyhash'
+import * as p2wpkho from '../witnesspubkeyhash/output'
+import * as p2wsho from '../witnessscripthash/output'
+
+
+
+export function check (script: Buffer | Array<number | Buffer>, allowIncomplete?: boolean): boolean {
+  const chunks = <Array<number | Buffer>>bscript.decompile(script)
+  if (chunks.length < 1) return false
+
+  const lastChunk = chunks[chunks.length - 1]
+  if (!Buffer.isBuffer(lastChunk)) return false
+
+  const scriptSigChunks = <Array<number | Buffer>>bscript.decompile(bscript.compile(chunks.slice(0, -1)))
+  const redeemScriptChunks = bscript.decompile(<Buffer>lastChunk)
+
+  // is redeemScript a valid script?
+  if (!redeemScriptChunks) return false
+
+  // is redeemScriptSig push only?
+  if (!bscript.isPushOnly(scriptSigChunks)) return false
+
+  // is witness?
+  if (chunks.length === 1) {
+    return p2wsho.check(redeemScriptChunks) ||
+      p2wpkho.check(redeemScriptChunks)
+  }
+
+  // match types
+  if (p2pkh.input.check(scriptSigChunks) &&
+    p2pkh.output.check(redeemScriptChunks)) return true
+
+  if (p2ms.input.check(scriptSigChunks, allowIncomplete) &&
+    p2ms.output.check(redeemScriptChunks)) return true
+
+  if (p2pk.input.check(scriptSigChunks) &&
+    p2pk.output.check(redeemScriptChunks)) return true
+
+  return false
+}
+check.toJSON = function () { return 'scriptHash input' }

ts_src/templates/scripthash/output.ts

@@ -0,0 +1,14 @@
+// OP_HASH160 {scriptHash} OP_EQUAL
+
+import * as bscript from '../../script'
+import { OPS } from '../../script'
+
+export function check (script: Buffer | Array<number | Buffer>): boolean {
+  const buffer = bscript.compile(script)
+
+  return buffer.length === 23 &&
+    buffer[0] === OPS.OP_HASH160 &&
+    buffer[1] === 0x14 &&
+    buffer[22] === OPS.OP_EQUAL
+}
+check.toJSON = function () { return 'scriptHash output' }