In reportLab, I need to display an arabic paragraph. I am using arabic-resharper and bidi-algorithm. The problem appears in the algorithm that reverses lines.
My code is:
def format_arabic_paragraph(arabic_text: str, paragraph_style: ParagraphStyle):
reshaped_text = arabic_reshaper.reshape(arabic_text)
bidirectional_text = algorithm.get_display(reshaped_text)
formatted_paragraph = Paragraph(bidirectional_text, paragraph_style)
return formatted_paragraph
arabic_text='وحدة1 وحدة2'
Here's the output:
وحدة2
وحدة1
Here's what I expected:
وحدة1
وحدة2
Reportlab has partial bidirectional support using Fribidi. It is disabled by default. There is an option rtlSupport
in reportlab/rl_settings
. See user guide section on site configuration. In my installation, I added a file ~/.reportlab_settings
and added the line rtlSupport=1
.
In ParagraphStyle()
set wordWrap="RTL"
.
An example:
from reportlab.platypus import Paragraph
from reportlab.lib.enums import TA_RIGHT
from reportlab.pdfbase import pdfmetrics
from reportlab.pdfbase.ttfonts import TTFont
from reportlab.lib.pagesizes import LETTER
from reportlab.lib.styles import ParagraphStyle, getSampleStyleSheet
from reportlab.platypus.doctemplate import SimpleDocTemplate
pdfmetrics.registerFont(TTFont("Arial Unicode", "Arial Unicode.ttf"))
arabic_text='وحدة1 وحدة2'
doc = SimpleDocTemplate(
"repro_ar.pdf",
pagesize=LETTER,
rightMargin=280,
leftMargin=280,
topMargin=72,
bottomMargin=72,
)
styles = getSampleStyleSheet()
normal_arabic = ParagraphStyle(
parent=styles["Normal"],
name="NormalArabic",
wordWrap="RTL",
alignment=TA_RIGHT,
fontName="Arial Unicode",
fontSize=14,
leading=16
)
flowables = [Paragraph(arabic_text, normal_arabic)]
doc.build(flowables)
This gives me: