Not displaying Russian text in the table of contents

[lcomrade]

Russian characters are not displayed in the table of contents.
But English text, numbers and special characters are displayed normally.

Error details
I don't get any exceptions.

Minimal code

from fpdf import FPDF
from fpdf import TitleStyle

if __name__ == "__main__":
    # Setup
    pdf = FPDF("P", "mm", "A4")
    pdf.add_page()

    pdf.add_font("FreeMono", fname="FreeMono.ttf", uni=True)
    pdf.add_font("FreeMonoBold", fname="FreeMonoBold.ttf", uni=True)
    pdf.set_font("FreeMono", style="", size=18)

    pdf.set_section_title_styles(TitleStyle(
        font_family="FreeMonoBold",
        font_style="",
        font_size_pt=24,
        color=None,
        underline=False,
        t_margin=10,
        l_margin=10,
        b_margin=0,
    ))

    # Write text
    pdf.start_section("Русский, English, 1 2 3...")

    pdf.write(8, "Русский текст в параграфе.")
    pdf.ln(15)

    # Save result
    pdf.output("test.pdf")

Environment

• GNU/Linux
• Python 3.9.2
• fpdf2 2.4.6

[lcomrade]

The table of contents should be Русский, English, 1 2 3..., but it displays , English, 1 2 3....

[Lucas-C]

Thank you for reporting this @lcomrade

This is strange as we should have a test covering this already:

• https://github.com/PyFPDF/fpdf2/blob/master/test/html/test_html.py#L433
• https://github.com/PyFPDF/fpdf2/blob/master/test/html/html_heading_hebrew.pdf
• introduced in https://github.com/PyFPDF/fpdf2/pull/222/files

I'll try to have a closer look at it this evening

[Lucas-C]

@all-contributors please add @lcomrade for bug

[allcontributors]

@Lucas-C

I've put up a pull request to add @lcomrade! 🎉

[Lucas-C]

OK so in fact the existing test shares the same issue:
the hebrew text is not rendered in the outline.

cf. cfe92904

I guess we need to find the correct encoding to use when embedding unicode text in the document outline.