@linaria/tags/esm/utils/stripLines.js

Blazing fast zero-runtime CSS in JS library

// Stripping away the new lines ensures that we preserve line numbers
// This is useful in case of tools such as the stylelint pre-processor
// This should be safe because strings cannot contain newline: https://www.w3.org/TR/CSS2/syndata.html#strings
export default function stripLines(loc, text) {
  let result = String(text).replace(/[\r\n]+/g, ' ').trim();

  // If the start and end line numbers aren't same, add new lines to span the text across multiple lines
  if (loc.start.line !== loc.end.line) {
    result += '\n'.repeat(loc.end.line - loc.start.line);

    // Add extra spaces to offset the column
    result += ' '.repeat(loc.end.column);
  }
  return result;
}
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