diff --git a/Lib/mailcap.py b/Lib/mailcap.py index 97e3035..4177428 100644 --- a/Lib/mailcap.py +++ b/Lib/mailcap.py @@ -4,6 +4,15 @@ import os __all__ = ["getcaps","findmatch"] + +def lineno_sort_key(entry): + # Sort in ascending order, with unspecified entries at the end + if 'lineno' in entry: + return 0, entry['lineno'] + else: + return 1, 0 + + # Part 1: top-level interface. def getcaps(): @@ -17,13 +26,14 @@ def getcaps(): """ caps = {} + lineno = 0 for mailcap in listmailcapfiles(): try: fp = open(mailcap, 'r') except OSError: continue with fp: - morecaps = readmailcapfile(fp) + morecaps, lineno = readmailcapfile(fp, lineno) for key, value in morecaps.items(): if not key in caps: caps[key] = value @@ -50,7 +60,7 @@ def listmailcapfiles(): # Part 2: the parser. -def readmailcapfile(fp): +def readmailcapfile(fp, lineno): """Read a mailcap file and return a dictionary keyed by MIME type. Each MIME type is mapped to an entry consisting of a list of @@ -76,6 +86,8 @@ def readmailcapfile(fp): key, fields = parseline(line) if not (key and fields): continue + fields['lineno'] = lineno + lineno += 1 # Normalize the key types = key.split('/') for j in range(len(types)): @@ -86,7 +98,7 @@ def readmailcapfile(fp): caps[key].append(fields) else: caps[key] = [fields] - return caps + return caps, lineno def parseline(line): """Parse one entry in a mailcap file and return a dictionary. @@ -165,6 +177,7 @@ def lookup(caps, MIMEtype, key=None): entries = entries + caps[MIMEtype] if key is not None: entries = [e for e in entries if key in e] + entries = sorted(entries, key=lineno_sort_key) return entries def subst(field, MIMEtype, filename, plist=[]): diff --git a/Lib/test/mailcap.txt b/Lib/test/mailcap.txt index f61135d..08a76e6 100644 --- a/Lib/test/mailcap.txt +++ b/Lib/test/mailcap.txt @@ -35,5 +35,5 @@ message/external-body; showexternal %s %{access-type} %{name} %{site} \ text/richtext; shownonascii iso-8859-8 -e richtext -p %s; test=test "`echo \ %{charset} | tr '[A-Z]' '[a-z]'`" = iso-8859-8; copiousoutput -video/mpeg; mpeg_play %s video/*; animate %s +video/mpeg; mpeg_play %s \ No newline at end of file diff --git a/Lib/test/test_mailcap.py b/Lib/test/test_mailcap.py index a4cd09c..af2f8a8 100644 --- a/Lib/test/test_mailcap.py +++ b/Lib/test/test_mailcap.py @@ -1,5 +1,6 @@ import mailcap import os +import copy import shutil import test.support import unittest @@ -14,41 +15,46 @@ MAILCAPDICT = { [{'compose': 'moviemaker %s', 'x11-bitmap': '"/usr/lib/Zmail/bitmaps/movie.xbm"', 'description': '"Movie"', - 'view': 'movieplayer %s'}], + 'view': 'movieplayer %s', + 'lineno': 4}], 'application/*': [{'copiousoutput': '', - 'view': 'echo "This is \\"%t\\" but is 50 \\% Greek to me" \\; cat %s'}], + 'view': 'echo "This is \\"%t\\" but is 50 \\% Greek to me" \\; cat %s', + 'lineno': 5}], 'audio/basic': [{'edit': 'audiocompose %s', 'compose': 'audiocompose %s', 'description': '"An audio fragment"', - 'view': 'showaudio %s'}], + 'view': 'showaudio %s', + 'lineno': 6}], 'video/mpeg': - [{'view': 'mpeg_play %s'}], + [{'view': 'mpeg_play %s', 'lineno': 13}], 'application/postscript': - [{'needsterminal': '', 'view': 'ps-to-terminal %s'}, - {'compose': 'idraw %s', 'view': 'ps-to-terminal %s'}], + [{'needsterminal': '', 'view': 'ps-to-terminal %s', 'lineno': 1}, + {'compose': 'idraw %s', 'view': 'ps-to-terminal %s', 'lineno': 2}], 'application/x-dvi': - [{'view': 'xdvi %s'}], + [{'view': 'xdvi %s', 'lineno': 3}], 'message/external-body': [{'composetyped': 'extcompose %s', 'description': '"A reference to data stored in an external location"', 'needsterminal': '', - 'view': 'showexternal %s %{access-type} %{name} %{site} %{directory} %{mode} %{server}'}], + 'view': 'showexternal %s %{access-type} %{name} %{site} %{directory} %{mode} %{server}', + 'lineno': 10}], 'text/richtext': [{'test': 'test "`echo %{charset} | tr \'[A-Z]\' \'[a-z]\'`" = iso-8859-8', 'copiousoutput': '', - 'view': 'shownonascii iso-8859-8 -e richtext -p %s'}], + 'view': 'shownonascii iso-8859-8 -e richtext -p %s', + 'lineno': 11}], 'image/x-xwindowdump': - [{'view': 'display %s'}], + [{'view': 'display %s', 'lineno': 9}], 'audio/*': - [{'view': '/usr/local/bin/showaudio %t'}], + [{'view': '/usr/local/bin/showaudio %t', 'lineno': 7}], 'video/*': - [{'view': 'animate %s'}], + [{'view': 'animate %s', 'lineno': 12}], 'application/frame': - [{'print': '"cat %s | lp"', 'view': 'showframe %s'}], + [{'print': '"cat %s | lp"', 'view': 'showframe %s', 'lineno': 0}], 'image/rgb': - [{'view': 'display %s'}] + [{'view': 'display %s', 'lineno': 8}] } @@ -76,12 +82,15 @@ class HelperFunctionTest(unittest.TestCase): def test_readmailcapfile(self): # Test readmailcapfile() using test file. It should match MAILCAPDICT. with open(MAILCAPFILE, 'r') as mcf: - d = mailcap.readmailcapfile(mcf) + d, lineno = mailcap.readmailcapfile(mcf, 0) self.assertDictEqual(d, MAILCAPDICT) + self.assertEqual(lineno, 14) def test_lookup(self): + # Test without key - expected = [{'view': 'mpeg_play %s'}, {'view': 'animate %s'}] + expected = [{'view': 'animate %s', 'lineno': 12}, + {'view': 'mpeg_play %s', 'lineno': 13}] actual = mailcap.lookup(MAILCAPDICT, 'video/mpeg') self.assertListEqual(expected, actual) @@ -90,10 +99,21 @@ class HelperFunctionTest(unittest.TestCase): expected = [{'edit': 'audiocompose %s', 'compose': 'audiocompose %s', 'description': '"An audio fragment"', - 'view': 'showaudio %s'}] + 'view': 'showaudio %s', + 'lineno': 6}] actual = mailcap.lookup(MAILCAPDICT, 'audio/basic', key) self.assertListEqual(expected, actual) + # Test on user-defined dicts without line numbers + c = copy.deepcopy(MAILCAPDICT) + for entry_list in c.values(): + for entry in entry_list: + entry.pop('lineno') + + expected = [{'view': 'mpeg_play %s'}, {'view': 'animate %s'}] + actual = mailcap.lookup(c, 'video/mpeg') + self.assertListEqual(expected, actual) + def test_subst(self): plist = ['id=1', 'number=2', 'total=3'] # test case: ([field, MIMEtype, filename, plist=[]], ) @@ -145,6 +165,7 @@ class FindmatchTest(unittest.TestCase): # default findmatch arguments c = MAILCAPDICT + fname = "foo.txt" plist = ["access-type=default", "name=john", "site=python.org", "directory=/tmp", "mode=foo", "server=bar"] @@ -152,14 +173,16 @@ class FindmatchTest(unittest.TestCase): 'edit': 'audiocompose %s', 'compose': 'audiocompose %s', 'description': '"An audio fragment"', - 'view': 'showaudio %s' + 'view': 'showaudio %s', + 'lineno': 6 } - audio_entry = {"view": "/usr/local/bin/showaudio %t"} - video_entry = {'view': 'animate %s'} + audio_entry = {"view": "/usr/local/bin/showaudio %t", 'lineno': 7} + video_entry = {'view': 'animate %s', 'lineno': 12} message_entry = { 'composetyped': 'extcompose %s', 'description': '"A reference to data stored in an external location"', 'needsterminal': '', - 'view': 'showexternal %s %{access-type} %{name} %{site} %{directory} %{mode} %{server}' + 'view': 'showexternal %s %{access-type} %{name} %{site} %{directory} %{mode} %{server}', + 'lineno': 10, } # test case: (findmatch args, findmatch keyword args, expected output) @@ -169,7 +192,7 @@ class FindmatchTest(unittest.TestCase): cases = [ ([{}, "video/mpeg"], {}, (None, None)), ([c, "foo/bar"], {}, (None, None)), - ([c, "video/mpeg"], {}, ('mpeg_play /dev/null', {'view': 'mpeg_play %s'})), + ([c, "video/mpeg"], {}, ('animate /dev/null', video_entry)), ([c, "audio/basic", "edit"], {}, ("audiocompose /dev/null", audio_basic_entry)), ([c, "audio/basic", "compose"], {}, ("audiocompose /dev/null", audio_basic_entry)), ([c, "audio/basic", "description"], {}, ('"An audio fragment"', audio_basic_entry)),

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