Befor generating

2026-06-01 13:17:37 +02:00
parent 3383f4bf4a
commit 1aa1b5f625
6756 changed files with 649946 additions and 1 deletions
@@ -0,0 +1,43 @@
+module.exports = (txt, reviver, context = 20) => {
+  try {
+    return JSON.parse(txt, reviver);
+  } catch (e) {
+    handleJsonNotString(txt);
+    const syntaxErr = e.message.match(/^Unexpected token.*position\s+(\d+)/i);
+    const errIdxBrokenJson = e.message.match(/^Unexpected end of JSON.*/i) ? txt.length - 1 : null;
+    const errIdx = syntaxErr ? +syntaxErr[1] : errIdxBrokenJson;
+    handleErrIdxNotNull(e, txt, errIdx, context);
+    e.offset = errIdx;
+    const lines = txt.substr(0, errIdx).split('\n');
+    e.startLine = lines.length;
+    e.startColumn = lines[lines.length - 1].length;
+    throw e;
+  }
+};
+
+function handleJsonNotString(txt) {
+  if (typeof txt !== 'string') {
+    const isEmptyArray = Array.isArray(txt) && txt.length === 0;
+    const errorMessage = `Cannot parse ${ 
+      isEmptyArray ? 'an empty array' : String(txt)}`;
+    throw new TypeError(errorMessage);
+  }
+}
+
+function handleErrIdxNotNull(e, txt, errIdx, context) {
+  if (errIdx !== null) {
+    const start = errIdx <= context
+      ? 0
+      : errIdx - context;
+    const end = errIdx + context >= txt.length
+      ? txt.length
+      : errIdx + context;
+    e.message += ` while parsing near '${
+      start === 0 ? '' : '...'
+    }${txt.slice(start, end)}${
+      end === txt.length ? '' : '...'
+    }'`;
+  } else {
+    e.message += ` while parsing '${txt.slice(0, context * 2)}'`;
+  }
+}