{
  "version": 3,
  "sources": ["../../../../src/packages/text.comments-parser/extractComments.ts"],
  "sourcesContent": ["// eslint-disable-next-line @typescript-eslint/ban-ts-comment\n// @ts-ignore\nimport { parseString, stripComments } from 'strip-comments-strings';\nimport type { CommentSpecifier } from './CommentSpecifier.ts';\n\ninterface ExtractedComments {\n  text: string;\n  comments: CommentSpecifier[] | undefined;\n  hasFinalNewline: boolean;\n}\n\nexport function extractComments(text: string): ExtractedComments {\n  const hasFinalNewline = text.endsWith('\\n');\n\n  let t = text;\n\n  if (!hasFinalNewline) {\n    /* For the sake of the comment parser, which otherwise loses the\n     * final character of a final comment\n     */\n    t += '\\n';\n  }\n\n  const { comments: rawComments } = parseString(t);\n\n  const comments: CommentSpecifier[] = [];\n\n  let stripped: string = stripComments(t);\n\n  if (!hasFinalNewline) {\n    stripped = stripped.slice(0, -1);\n  }\n\n  let offset = 0; // accumulates difference of indices from text to stripped\n\n  for (const comment of rawComments) {\n    /* Extract much more context for the comment needed to restore it later */\n    // Unfortunately, JavaScript lastIndexOf does not have an end parameter:\n    const preamble: string = stripped.slice(0, comment.index - offset);\n\n    const lineStart = Math.max(preamble.lastIndexOf('\\n'), 0);\n\n    const priorLines = preamble.split('\\n');\n\n    let lineNumber = priorLines.length;\n\n    let after = '';\n\n    let hasAfter = false;\n\n    if (lineNumber === 1) {\n      if (preamble.trim().length === 0) {\n        lineNumber = 0;\n      }\n    } else {\n      after = priorLines[lineNumber - 2] ?? '';\n\n      hasAfter = true;\n\n      if (priorLines[0]?.trim().length === 0) {\n        /* JSON5.stringify will not have a whitespace-only line at the start */\n        lineNumber--;\n      }\n    }\n\n    let lineEnd = stripped.indexOf('\\n', lineStart === 0 ? 0 : lineStart + 1);\n\n    if (lineEnd < 0) {\n      lineEnd = stripped.length;\n    }\n\n    const whitespaceMatch = stripped\n      .slice(lineStart, comment.index - offset)\n      .match(/^\\s*/);\n\n    const newComment: CommentSpecifier = {\n      type: comment.type,\n      content: comment.content,\n      lineNumber,\n      on: stripped.slice(lineStart, lineEnd),\n      whitespace: whitespaceMatch ? whitespaceMatch[0] : '',\n    };\n\n    if (hasAfter) {\n      newComment.after = after;\n    }\n    const nextLineEnd = stripped.indexOf('\\n', lineEnd + 1);\n    if (nextLineEnd >= 0) {\n      newComment.before = stripped.slice(lineEnd, nextLineEnd);\n    }\n    comments.push(newComment);\n    offset += comment.indexEnd - comment.index;\n  }\n  return {\n    text: stripped,\n    comments: comments.length ? comments : undefined,\n    hasFinalNewline,\n  };\n}\n"],
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