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1 files changed, 38 insertions, 0 deletions

diff --git a/node_modules/json-parse-better-errors/index.js b/node_modules/json-parse-better-errors/index.js
new file mode 100644
index 00000000..14644c2f
--- /dev/null
+++ b/node_modules/json-parse-better-errors/index.js
@@ -0,0 +1,38 @@
+'use strict'
+
+module.exports = parseJson
+function parseJson (txt, reviver, context) {
+  context = context || 20
+  try {
+    return JSON.parse(txt, reviver)
+  } catch (e) {
+    if (typeof txt !== 'string') {
+      const isEmptyArray = Array.isArray(txt) && txt.length === 0
+      const errorMessage = 'Cannot parse ' +
+      (isEmptyArray ? 'an empty array' : String(txt))
+      throw new TypeError(errorMessage)
+    }
+    const syntaxErr = e.message.match(/^Unexpected token.*position\s+(\d+)/i)
+    const errIdx = syntaxErr
+    ? +syntaxErr[1]
+    : e.message.match(/^Unexpected end of JSON.*/i)
+    ? txt.length - 1
+    : null
+    if (errIdx != null) {
+      const start = errIdx <= context
+      ? 0
+      : errIdx - context
+      const end = errIdx + context >= txt.length
+      ? txt.length
+      : errIdx + context
+      e.message += ` while parsing near '${
+        start === 0 ? '' : '...'
+      }${txt.slice(start, end)}${
+        end === txt.length ? '' : '...'
+      }'`
+    } else {
+      e.message += ` while parsing '${txt.slice(0, context * 2)}'`
+    }
+    throw e
+  }
+}