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Fix pnm test for short files and add X bitmap as recognized type

This commit is contained in:
Guido van Rossum 1992-06-03 16:48:44 +00:00
parent d482e8ad4a
commit 05b55e76f0
1 changed files with 10 additions and 1 deletions
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11
Lib/imghdr.py
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@ -37,7 +37,8 @@ tests.append(test_gif)
def test_pnm(h, f):
# PBM, PGM, PPM (portable {bit,gray,pix}map; together portable anymap)
if h[0] == 'P' and h[1] in '123456' and h[2] in ' \t\n\r':
if len(h) >= 3 and \
h[0] == 'P' and h[1] in '123456' and h[2] in ' \t\n\r':
return 'pnm'
tests.append(test_pnm)
@ -56,6 +57,14 @@ def test_rast(h, f):
tests.append(test_rast)
def test_xbm(h, f):
# X bitmap (X10 or X11)
s = '#define '
if h[:len(s)] == s:
return 'xbm'
tests.append(test_xbm)
#--------------------#
# Small test program #