Exemplo n.º 1
0
    def _get_syntax(
        self,
        console: Console,
        options: ConsoleOptions,
    ) -> Iterable[Segment]:
        """
        Get the Segments for the Syntax object, excluding any vertical/horizontal padding
        """
        transparent_background = self._get_base_style().transparent_background
        code_width = (((options.max_width - self._numbers_column_width -
                        1) if self.line_numbers else options.max_width)
                      if self.code_width is None else self.code_width)

        ends_on_nl, processed_code = self._process_code(self.code)
        text = self.highlight(processed_code, self.line_range)

        if not self.line_numbers and not self.word_wrap and not self.line_range:
            if not ends_on_nl:
                text.remove_suffix("\n")
            # Simple case of just rendering text
            style = (self._get_base_style() +
                     self._theme.get_style_for_token(Comment) +
                     Style(dim=True) + self.background_style)
            if self.indent_guides and not options.ascii_only:
                text = text.with_indent_guides(self.tab_size, style=style)
                text.overflow = "crop"
            if style.transparent_background:
                yield from console.render(
                    text, options=options.update(width=code_width))
            else:
                syntax_lines = console.render_lines(
                    text,
                    options.update(width=code_width,
                                   height=None,
                                   justify="left"),
                    style=self.background_style,
                    pad=True,
                    new_lines=True,
                )
                for syntax_line in syntax_lines:
                    yield from syntax_line
            return

        start_line, end_line = self.line_range or (None, None)
        line_offset = 0
        if start_line:
            line_offset = max(0, start_line - 1)
        lines: Union[List[Text], Lines] = text.split("\n",
                                                     allow_blank=ends_on_nl)
        if self.line_range:
            lines = lines[line_offset:end_line]

        if self.indent_guides and not options.ascii_only:
            style = (self._get_base_style() +
                     self._theme.get_style_for_token(Comment) +
                     Style(dim=True) + self.background_style)
            lines = (Text("\n").join(lines).with_indent_guides(
                self.tab_size, style=style).split("\n", allow_blank=True))

        numbers_column_width = self._numbers_column_width
        render_options = options.update(width=code_width)

        highlight_line = self.highlight_lines.__contains__
        _Segment = Segment
        new_line = _Segment("\n")

        line_pointer = "> " if options.legacy_windows else "❱ "

        (
            background_style,
            number_style,
            highlight_number_style,
        ) = self._get_number_styles(console)

        for line_no, line in enumerate(lines, self.start_line + line_offset):
            if self.word_wrap:
                wrapped_lines = console.render_lines(
                    line,
                    render_options.update(height=None, justify="left"),
                    style=background_style,
                    pad=not transparent_background,
                )
            else:
                segments = list(line.render(console, end=""))
                if options.no_wrap:
                    wrapped_lines = [segments]
                else:
                    wrapped_lines = [
                        _Segment.adjust_line_length(
                            segments,
                            render_options.max_width,
                            style=background_style,
                            pad=not transparent_background,
                        )
                    ]

            if self.line_numbers:
                wrapped_line_left_pad = _Segment(
                    " " * numbers_column_width + " ", background_style)
                for first, wrapped_line in loop_first(wrapped_lines):
                    if first:
                        line_column = str(line_no).rjust(numbers_column_width -
                                                         2) + " "
                        if highlight_line(line_no):
                            yield _Segment(line_pointer, Style(color="red"))
                            yield _Segment(line_column, highlight_number_style)
                        else:
                            yield _Segment("  ", highlight_number_style)
                            yield _Segment(line_column, number_style)
                    else:
                        yield wrapped_line_left_pad
                    yield from wrapped_line
                    yield new_line
            else:
                for wrapped_line in wrapped_lines:
                    yield from wrapped_line
                    yield new_line
Exemplo n.º 2
0
    def __rich_console__(self, console: Console,
                         options: ConsoleOptions) -> RenderResult:

        transparent_background = self._get_base_style().transparent_background
        code_width = (((options.max_width - self._numbers_column_width -
                        1) if self.line_numbers else options.max_width)
                      if self.code_width is None else self.code_width)

        line_offset = 0
        if self.line_range:
            start_line, end_line = self.line_range
            line_offset = max(0, start_line - 1)

        ends_on_nl = self.code.endswith("\n")
        code = self.code if ends_on_nl else self.code + "\n"
        code = textwrap.dedent(code) if self.dedent else code
        code = code.expandtabs(self.tab_size)
        text = self.highlight(code, self.line_range)

        (
            background_style,
            number_style,
            highlight_number_style,
        ) = self._get_number_styles(console)

        if not self.line_numbers and not self.word_wrap and not self.line_range:
            if not ends_on_nl:
                text.remove_suffix("\n")
            # Simple case of just rendering text
            style = (self._get_base_style() +
                     self._theme.get_style_for_token(Comment) +
                     Style(dim=True) + self.background_style)
            if self.indent_guides and not options.ascii_only:
                text = text.with_indent_guides(self.tab_size, style=style)
                text.overflow = "crop"
            if style.transparent_background:
                yield from console.render(
                    text, options=options.update(width=code_width))
            else:
                syntax_lines = console.render_lines(
                    text,
                    options.update(width=code_width, height=None),
                    style=self.background_style,
                    pad=True,
                    new_lines=True,
                )
                for syntax_line in syntax_lines:
                    yield from syntax_line
            return

        lines: Union[List[Text], Lines] = text.split("\n",
                                                     allow_blank=ends_on_nl)
        if self.line_range:
            lines = lines[line_offset:end_line]

        if self.indent_guides and not options.ascii_only:
            style = (self._get_base_style() +
                     self._theme.get_style_for_token(Comment) +
                     Style(dim=True) + self.background_style)
            lines = (Text("\n").join(lines).with_indent_guides(
                self.tab_size, style=style).split("\n", allow_blank=True))

        numbers_column_width = self._numbers_column_width
        render_options = options.update(width=code_width)

        highlight_line = self.highlight_lines.__contains__
        _Segment = Segment
        padding = _Segment(" " * numbers_column_width + " ", background_style)
        new_line = _Segment("\n")

        line_pointer = "> " if options.legacy_windows else "❱ "

        for line_no, line in enumerate(lines, self.start_line + line_offset):
            if self.word_wrap:
                wrapped_lines = console.render_lines(
                    line,
                    render_options.update(height=None),
                    style=background_style,
                    pad=not transparent_background,
                )

            else:
                segments = list(line.render(console, end=""))
                if options.no_wrap:
                    wrapped_lines = [segments]
                else:
                    wrapped_lines = [
                        _Segment.adjust_line_length(
                            segments,
                            render_options.max_width,
                            style=background_style,
                            pad=not transparent_background,
                        )
                    ]
            if self.line_numbers:
                for first, wrapped_line in loop_first(wrapped_lines):
                    if first:
                        line_column = str(line_no).rjust(numbers_column_width -
                                                         2) + " "
                        if highlight_line(line_no):
                            yield _Segment(line_pointer, Style(color="red"))
                            yield _Segment(line_column, highlight_number_style)
                        else:
                            yield _Segment("  ", highlight_number_style)
                            yield _Segment(line_column, number_style)
                    else:
                        yield padding
                    yield from wrapped_line
                    yield new_line
            else:
                for wrapped_line in wrapped_lines:
                    yield from wrapped_line
                    yield new_line