# coding=utf8
# the above tag defines encoding for this document and is for Python 2.x compatibility
import re
regex = r"class=\"[^\"]*(?<=\"|\s)left-top-container(?=\"|\s)[^\"]*\"[^<]*<h2[^>]*>(?<title>[^<]*)</h2"
test_str = "<div class=\"left-top-container\"> <h2 itemprop=\"name\"> Nike Magista</h2> <div class=\"listing_info\"> <div class=\"list_id\"><strong>List-ID: </strong>52002304 </div> <div class=\"list_time\"> Yesterday 09:20 </div> </div> <div class=\"ad_images\"> <!-- IMAGE GALLERY --> <div class=\"\" id=\"image-gallery\"> <div id=\"gallery-image-border\"> <meta itemprop=\"image\" content=\"http://img.rnudah.com/images/04/044707022491864.jpg\"> <span class=\"trackable favourite-heart favourite-heart-empty\" aria-hidden=\"true\" data-list-id=\"52002304\" data-company-ad=\"0\" data-category=\"4160\" data-region=\"7\" data-event_type=\"view\" data-event_name=\"save_favourite_ad\" data-page_name=\"Add Favourite Ad\" data-xtn2=\"5\" data-xiti_f1=\"4160\" data-xiti_f2=\"7\" data-xiti_f3=\"2\" data-xiti_f4=\"2\" data-xiti_f5=\"248\"></span> <div class=\"heart-icon-tip adview-tip\"> <div class=\"arrow-tip\"></div> <div class=\"tip-content\"> Click on the heart to add this to your Favourite list. </div> </div> <div id=\"gallery-image-container\"><span><a href=\"javascript:void(0)\" onclick=\"gallery.nextImage()\"><img src=\"http://img.rnudah.com/images/04/044707022491864.jpg\" style=\"margin-top:44px;margin-left:0px\"></a></span></div> </div> </div> <div id=\"gallery-thumbnail-containers\" style=\"display: none\"> <ul id=\"gallery-thumbnail-items\"> <li><a href=\"javascript:void(0)\" onclick=\"gallery.move('prev')\" class=\"gallery-navigation\" style=\"display: none;\"><img src=\"/img/none.gif\" class=\"sprite_view_arrow-left\"></a></li> <li id=\"gallery-thumbnails-li\"> <div id=\"gallery-thumbnails-ul-container\"> <ul id=\"gallery-thumbnails\" style=\"width: 540px;\"><li data-sort=\"1\" class=\"thumbnail-active\"><a href=\"javascript:void(0)\" style=\"margin-top: 5.5px\" onmouseover=\"gallery.changeGalleryImage("0")\"><img src=\"http://img.rnudah.com/thumbs/04/044707022491864.jpg\"></a></li></ul> </div> </li> <li><a href=\"javascript:void(0)\" onclick=\"gallery.move('next')\" class=\"gallery-navigation\" style=\"display: none;\"><img src=\"/img/none.gif\" class=\"sprite_view_arrow-right\"></a></li> </ul> </div> <!-- IMAGE GALLERY --> </div> <div class=\"ad_info\"> </div></div>"
matches = re.finditer(regex, test_str, re.MULTILINE | re.IGNORECASE | re.DOTALL)
for matchNum, match in enumerate(matches, start=1):
print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group()))
for groupNum in range(0, len(match.groups())):
groupNum = groupNum + 1
print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum)))
# Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution.
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Python, please visit: https://docs.python.org/3/library/re.html