Bug#996785: deb822-repro: doesn't support leading tabs when assigning values

[Jelmer Vernooij]

Package: python3-debian
Version: 0.1.39
Severity: normal
X-Debbugs-Cc: nthykier at debian.org

python-debian doesn't seem to support assigning fields that contain tabs:

>>> from debian._deb822_repro import parse_deb822_file
>>> x = parse_deb822_file(["Source: foo\n", "Depends: bar\n"])
>>> next(x.iter_parts())['Depends'] = 'debhelper (>= 10), quilt (>= 0.40),\n\tlibsystemd-dev [linux-any], pkg-config'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/jelmer/src/python-debian/lib/debian/_deb822_repro/parsing.py", line 1418, in __setitem__
    self._paragraph.set_field_from_raw_string(
  File "/home/jelmer/src/python-debian/lib/debian/_deb822_repro/parsing.py", line 2012, in set_field_from_raw_string
    raise ValueError(msg.format(i=i, line=line[0]))
ValueError: Line 2 in new value was invalid.  It must either start with " " space (continuation line) or "#" (comment line). The line started with "	"

(This works with the old parser)

-- System Information:
Debian Release: bookworm/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 5.10.0-8-amd64 (SMP w/2 CPU threads)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages python3-debian depends on:
ii  python3          3.9.2-3
ii  python3-chardet  4.0.0-1
ii  python3-six      1.16.0-2

Versions of packages python3-debian recommends:
ii  python3-apt  2.2.1

Versions of packages python3-debian suggests:
ii  gpgv  2.2.27-2

-- no debconf information