Function _escape_and_apply_props

lib/matplotlib/backends/backend_pgf.py:104–146

Generate a TeX string that renders string *s* with font properties *prop*, also applying any required escapes to *s*.

(s, prop)

def _escape_and_apply_props(s, prop):
    """
    Generate a TeX string that renders string *s* with font properties *prop*,
    also applying any required escapes to *s*.
    """
    commands = []

    families = {"serif": r"\rmfamily", "sans": r"\sffamily",
                "sans-serif": r"\sffamily", "monospace": r"\ttfamily"}
    family = prop.get_family()[0]
    if family in families:
        commands.append(families[family])
    elif not mpl.rcParams["pgf.rcfonts"]:
        commands.append(r"\fontfamily{\familydefault}")
    elif any(font.name == family for font in fm.fontManager.ttflist):
        commands.append(
            r"\ifdefined\pdftexversion\else\setmainfont{%s}\rmfamily\fi" % family)
    else:
        _log.warning("Ignoring unknown font: %s", family)

    size = prop.get_size_in_points()
    commands.append(r"\fontsize{%f}{%f}" % (size, size * 1.2))

    styles = {"normal": r"", "italic": r"\itshape", "oblique": r"\slshape"}
    commands.append(styles[prop.get_style()])

    boldstyles = ["semibold", "demibold", "demi", "bold", "heavy",
                  "extra bold", "black"]
    if prop.get_weight() in boldstyles:
        commands.append(r"\bfseries")

    commands.append(r"\selectfont")
    return (
        "{"
        + "".join(commands)
        + r"\catcode`\^=\active\def^{\ifmmode\sp\else\^{}\fi}"
        # It should normally be enough to set the catcode of % to 12 ("normal
        # character"); this works on TeXLive 2021 but not on 2018, so we just
        # make it active too.
        + r"\catcode`\%=\active\def%{\%}"
        + _tex_escape(s)
        + "}"
    )


def _metadata_to_str(key, value):