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[kuwo] Regular expression improvements

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1. Prevent .+ and .*
2. Use [^>]+ instead of spaces for HTML tags
3. Remove unnecessary trailing parts
This commit is contained in:
Yen Chi Hsuan 2015-07-10 23:23:07 +08:00
parent a34af8d066
commit a31e3e7dcb
2 changed files with 26 additions and 23 deletions
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47
youtube_dl/extractor/kuwo.py
View file

@ -9,6 +9,7 @@
get_element_by_id,
clean_html,
ExtractorError,
remove_start,
)
@ -73,10 +74,10 @@ def _real_extract(self, url):
errnote='Unable to get song detail info')
song_name = self._html_search_regex(
r'<h1 title="(.+?)">', webpage, 'song name')
r'<h1[^>]+title="([^"]+)">', webpage, 'song name')
singer_name = self._html_search_regex(
r'<div class="s_img">.+?title="(.+?)".+?</div>', webpage, 'singer name',
flags=re.DOTALL, default=None)
r'<div[^>]+class="s_img">\s*<a[^>]+title="([^>]+)"',
webpage, 'singer name', default=None)
lrc_content = clean_html(get_element_by_id("lrcContent", webpage))
if lrc_content == '暂无': # indicates no lyrics
lrc_content = None
@ -84,7 +85,7 @@ def _real_extract(self, url):
formats = self._get_formats(song_id)
album_id = self._html_search_regex(
r'<p class="album" title=".+?">.+?<a href="http://www\.kuwo\.cn/album/([0-9]+)/" ',
r'<p[^>]+class="album"[^<]+<a[^>]+href="http://www\.kuwo\.cn/album/(\d+)/"',
webpage, 'album id', default=None, fatal=False)
publish_time = None
@ -131,15 +132,16 @@ def _real_extract(self, url):
errnote='Unable to get album info')
album_name = self._html_search_regex(
r'<div class="comm".+?<h1 title="(.+?)">.+?</h1>', webpage,
'album name', flags=re.DOTALL)
album_intro = clean_html(
re.sub(r'^.+简介：', '', get_element_by_id("intro", webpage).strip()))
r'<div[^>]+class="comm"[^<]+<h1[^>]+title="([^"]+)"', webpage,
'album name')
album_intro = remove_start(
clean_html(get_element_by_id("intro", webpage)),
'%s简介：' % album_name)
entries = [
self.url_result("http://www.kuwo.cn/yinyue/%s/" % song_id, 'Kuwo', song_id)
for song_id in re.findall(
r'<p class="listen"><a href="http://www\.kuwo\.cn/yinyue/([0-9]+)/" target="_blank" title="试听.*?"></a></p>',
r'<p[^>]+class="listen"><a[^>]+href="http://www\.kuwo\.cn/yinyue/(\d+)/"',
webpage)
]
return self.playlist_result(entries, album_id, album_name, album_intro)
@ -147,7 +149,7 @@ def _real_extract(self, url):
class KuwoChartIE(InfoExtractor):
IE_NAME = 'kuwo:chart'
_VALID_URL = r'http://yinyue\.kuwo\.cn/billboard_(?P<id>.+?).htm'
_VALID_URL = r'http://yinyue\.kuwo\.cn/billboard_(?P<id>[^.]+).htm'
_TEST = {
'url': 'http://yinyue.kuwo.cn/billboard_香港中文龙虎榜.htm',
'info_dict': {
@ -165,15 +167,15 @@ def _real_extract(self, url):
errnote='Unable to get chart info')
chart_name = self._html_search_regex(
r'<h1 class="unDis">(.+?)</h1>', webpage, 'chart name')
r'<h1[^>]+class="unDis">([^<]+)</h1>', webpage, 'chart name')
chart_desc = self._html_search_regex(
r'<p class="tabDef">([0-9]{4}第[0-9]{2}期)</p>', webpage, 'chart desc')
r'<p[^>]+class="tabDef">(\d{4}第\d{2}期)</p>', webpage, 'chart desc')
entries = [
self.url_result("http://www.kuwo.cn/yinyue/%s/" % song_id, 'Kuwo', song_id)
for song_id in re.findall(
r'<a href="http://www\.kuwo\.cn/yinyue/([0-9]+)/" .+?>.+?</a>', webpage)
r'<a[^>]+href="http://www\.kuwo\.cn/yinyue/(\d+)/"', webpage)
]
return self.playlist_result(entries, chart_id, chart_name, chart_desc)
@ -204,11 +206,11 @@ def _real_extract(self, url):
errnote='Unable to get singer info')
singer_name = self._html_search_regex(
r'<div class="title clearfix">[\n\s\t]*?<h1>(.+?)<span', webpage, 'singer name'
r'<div class="title clearfix">\s*<h1>([^<]+)<span', webpage, 'singer name'
)
entries = []
first_page_only = False if re.match(r'.+/music(?:_[0-9]+)?\.htm', url) else True
first_page_only = False if re.search(r'/music(?:_[0-9]+)?\.htm', url) else True
for page_num in itertools.count(1):
webpage = self._download_webpage(
'http://www.kuwo.cn/mingxing/%s/music_%d.htm' % (singer_id, page_num),
@ -218,11 +220,11 @@ def _real_extract(self, url):
entries.extend([
self.url_result("http://www.kuwo.cn/yinyue/%s/" % song_id, 'Kuwo', song_id)
for song_id in re.findall(
r'<p class="m_name"><a href="http://www\.kuwo\.cn/yinyue/([0-9]+)/',
r'<p[^>]+class="m_name"><a[^>]+href="http://www\.kuwo\.cn/yinyue/([0-9]+)/',
webpage)
][:10 if first_page_only else None])
if first_page_only or not re.search(r'<a href="[^"]+">下一页</a>', webpage):
if first_page_only or not re.search(r'<a[^>]+href="[^"]+">下一页</a>', webpage):
break
return self.playlist_result(entries, singer_id, singer_name)
@ -248,13 +250,14 @@ def _real_extract(self, url):
errnote='Unable to get category info')
category_name = self._html_search_regex(
r'<h1 title="([^<>]+?)">[^<>]+?</h1>', webpage, 'category name')
r'<h1[^>]+title="([^<>]+?)">[^<>]+?</h1>', webpage, 'category name')
category_desc = re.sub(
r'^.+简介：', '', get_element_by_id("intro", webpage).strip())
category_desc = remove_start(
get_element_by_id("intro", webpage).strip(),
'%s简介：' % category_name)
jsonm = self._parse_json(self._html_search_regex(
r'var jsonm = (\{.+?\});', webpage, 'category songs'), category_id)
r'var\s+jsonm\s*=\s*([^;]+);', webpage, 'category songs'), category_id)
entries = [
self.url_result(
@ -289,7 +292,7 @@ def _real_extract(self, url):
errnote='Unable to get mv detail info: %s' % song_id)
mobj = re.search(
r'<h1 title="(?P<song>.+?)">[^<>]+<span .+?title="(?P<singer>.+?)".+?>[^<>]+</span></h1>',
r'<h1[^>]+title="(?P<song>[^"]+)">[^<]+<span[^>]+title="(?P<singer>[^"]+)"',
webpage)
if mobj:
song_name = mobj.group('song')

2
youtube_dl/extractor/neteasemusic.py
View file

@ -229,7 +229,7 @@ def _real_extract(self, url):
if info['artist']['trans']:
name = '%s - %s' % (name, info['artist']['trans'])
if info['artist']['alias']:
name = '%s - %s' % (name, ";".join(info['artist']['alias']))
name = '%s - %s' % (name, ';'.join(info['artist']['alias']))
entries = [
self.url_result('http://music.163.com/#/song?id=%s' % song['id'],