build method

Implementation

@override
Widget build(
  BuildContext context,
  String text,
  final GptMarkdownConfig config,
) {
  var p0 = exp.firstMatch(text.trim());
  String mathText = p0?[1] ?? p0?[2] ?? "";
  var workaround = config.latexWorkaround ?? (String tex) => tex;

  var builder =
      config.latexBuilder ??
      (BuildContext context, String tex, TextStyle textStyle, bool inline) =>
          SelectableAdapter(
            selectedText: tex,
            child: Math.tex(
              tex,
              textStyle: textStyle,
              mathStyle: MathStyle.display,
              textScaleFactor: 1,
              settings: const TexParserSettings(strict: Strict.ignore),
              options: MathOptions(
                sizeUnderTextStyle: MathSize.large,
                color:
                    config.style?.color ??
                    Theme.of(context).colorScheme.onSurface,
                fontSize:
                    config.style?.fontSize ??
                    Theme.of(context).textTheme.bodyMedium?.fontSize,
                mathFontOptions: FontOptions(
                  fontFamily: "Main",
                  fontWeight: config.style?.fontWeight ?? FontWeight.normal,
                  fontShape: FontStyle.normal,
                ),
                textFontOptions: FontOptions(
                  fontFamily: "Main",
                  fontWeight: config.style?.fontWeight ?? FontWeight.normal,
                  fontShape: FontStyle.normal,
                ),
                style: MathStyle.display,
              ),
              onErrorFallback: (err) {
                return Text(
                  workaround(mathText),
                  textDirection: config.textDirection,
                  style: textStyle.copyWith(
                    color:
                        (!kDebugMode)
                            ? null
                            : Theme.of(context).colorScheme.error,
                  ),
                );
              },
            ),
          );
  return builder(
    context,
    workaround(mathText),
    config.style ?? const TextStyle(),
    false,
  );
}