solive-docusaurus-theme-code/src/theme/utils/format-code.ts

A Docusaurus v2 plugin that supports solidity code live.

function solidityFormatter(code: string) {
  const lines = code.split('\n');
  let indentLevel = 0;
  const formattedLines = lines.map((line) => {
    const trimmedLine = line.trim();
    if (trimmedLine.startsWith('}')) {
      indentLevel -= 1;
    }

    const indentedLine = ' '.repeat(indentLevel * 4) + trimmedLine;

    if (
      trimmedLine.startsWith('{')
      || trimmedLine.endsWith('{')
      || trimmedLine.startsWith('contract')
      || trimmedLine.startsWith('library')
      || trimmedLine.startsWith('interface')
      || trimmedLine.startsWith('function')
      || trimmedLine.startsWith('struct')
      || trimmedLine.startsWith('event')
    ) {
      indentLevel += 1;
    }

    return indentedLine;
  });

  return formattedLines.join('\n');
}

export default solidityFormatter;