dir="rtl" in html crashes PDF build

[Samy Pessé]

OS: OS X
Version: 2.20.0

If I had dir="rtl" to the html tag during generation of PDF using ebook-convert, it crashes. It's working fine for epub generation.

libpng warning: iCCP: Not recognizing known sRGB profile that has been edited
Python function terminated unexpectedly: PDF Output failed, see log for details
Traceback (most recent call last):
  File "/Applications/calibre.app/Contents/Resources/Python/lib/python2.7/site.py", line 209, in main
    return run_entry_point()
  File "/Applications/calibre.app/Contents/Resources/Python/lib/python2.7/site.py", line 114, in run_entry_point
    return getattr(pmod, func)()
  File "site-packages/calibre/ebooks/conversion/cli.py", line 360, in main
  File "site-packages/calibre/ebooks/conversion/plumber.py", line 1198, in run
  File "site-packages/calibre/ebooks/conversion/plugins/pdf_output.py", line 145, in convert
  File "site-packages/calibre/ebooks/conversion/plugins/pdf_output.py", line 232, in convert_text
  File "site-packages/calibre/ebooks/conversion/plugins/pdf_output.py", line 258, in write
  File "site-packages/calibre/ebooks/pdf/render/from_html.py", line 236, in dump
Exception: PDF Output failed, see log for details
 1% Converting input to HTML...
InputFormatPlugin: HTML Input running
on /var/folders/bz/f87x2gmx55s1r700_jj45flm0000gn/T/tmp-41444tt99h74/SUMMARY.html
Language not specified
Creator not specified
Building file list...
Normalizing filename cases
Rewriting HTML links
34% Running transforms on ebook...
Merging user specified metadata...
Detecting structure...
 Detected chapter: Introduction
 Detected chapter: Introduction about the x86 architecture and about
 Detected chapter: Setup the development environment
 Detected chapter: First boot with GRUB
 Detected chapter: Backbone of the OS and C++ runtime
 Detected chapter: Base classes for managing x86 architecture
 Detected chapter: GDT
 Detected chapter: IDT and interrupts
 Detected chapter: Memory management: physical and virtual
Auto generated TOC with 9 entries.
Flattening CSS and remapping font sizes...
Source base font size is 12.00000pt
Removing fake margins...
Cleaning up manifest...
Trimming unused files from manifest...
Creating PDF Output...
67% Running PDF Output plugin
70% Rendered SUMMARY.html
73% Rendered index.html
76% Rendered index1.html
80% Rendered index2.html
Rendering failed

[Kovid Goyal (kovid)]

Attach a file demonstrating/reproducing the problem to this bug report. You can do that by clicking the "Add attachment or patch" link at the bottom of the bug's page. If the file you are attaching is copyrighted, mark the bug as private. You can do this by clicking the tiny lock icon next to "This report contains Public information" in the top right area of the bug's page.

 status incomplete

[Samy Pessé (samypesse)]

I attached a zip of a book to test the bug, simply run: "ebook-convert ./_book/SUMMARY.html ./book.pdf"

[Kovid Goyal (kovid)]

Fixed in branch master. The fix will be in the next release. calibre is usually released every Friday.

 status fixreleased