""" eventcal.py Version 0.80 2005. 10. 31. This parser gives a parsed format of the event which will be shown at the EventCalendar macro. @copyright: 2005 by Seungik Lee gmail.com> http://cds.icu.ac.kr/~silee/ @license: GPL Usage: To insert an event, enclose the information about ONE event record with 'eventcal' parser. E.g., {{{#!eventcal = [Title] = [Start Date] ... [End Date] [Start Time] ... [End Time] }}} [Title] should be enclosed with heading marker ('='), double quatation mark ("), wiki italic or bold ('', ''') Title can be omitted and it will be titled as 'No Title' e.g., == Title ==, === Title ===, "Title", ''Title'', '''Title''' [Start|End Date] should be in YYYY/MM/DD or YYYY-MM-DD. End date can be omitted. e.g, 2005/10/20, 2005-10-20 [Start|End Time] should be in HH:MM in 24-hour format. Both of start|end Time can be omitted but not either of them. e.g., 08:00, 12:00, 18:00 In the parsing block of eventcal, it pops out first two date formatted text (startdate and enddate), two time formatted text (starttime, endtime), and quoted or heading titie. It ignores further occurrence of the targeted string. The order of each fields (date, time, title) does not matter . The start date|time should precede the end date|time in the occurrence respectively. There is no input parameter yet. Features: Shows the event information in a parsed format. Validates the date, time format. Change Log: Oct. 31, 2005 - Version 0.80 - The initial version is released. To do list: Clean the ugly codes!!! (need help) raw html codes Date/time Format customization (e.g., 2005/10, Oct. 2005, 18:00, 06:00pm) Custom background color per event Custom icon per event More input parameters Parsing description field Notes: Much buggy.. :please report bugs and suggest your ideas. Usage Examples: {{{#!eventcal === Event Calendar Development === # title * Duration: 2005/10/20 ~ 2005/10/27 # startdate, enddate * It was very hard! # ignored * FYI, today's 2005/10/28 # ignored }}} {{{#!eventcal On 2005/10/10 20:00~22:00, we have "3rd Project meeting". Please don't miss it. # startdate, starttime, endtime, title }}} {{{#!eventcal '''My Business Trip''' # title From 2005-10-02 to 2005/10/07. See you later~ # startdate, enddate }}} {{{#!eventcal Please come to my office on 2005-10-10. Thanks. # (title: 'No Title'), startdate }}} """ import datetime, re, wiki import urllib from MoinMoin import config class Parser: def __init__(self, raw, request, **kw): self.lines = raw self.request = request def format(self, formatter): """ Send the "parsed" text. """ self.formatter = formatter # need help on regular expressions for more efficient/flexible form regex_date = r'(\d{4}[/-]\d{2}[/-]\d{2})' regex_time = r'(\d{2}[:]\d{2})' # regex_title = r'["\'=-]+(\s*.*[^"\'=-]+)["\'=-]+' # regex_title = r'["]+ | [\']{2,5} | [=-]+ (\s*.*[^"\'=-]+) [=-]+ | ["]+ | [\']{2,5}' # regex_title = r'[=-]+|[\']{2,5}(\s*.*[^"\'=-]+)[=-]|[\']{2,5}' regex_title = r'["]+(\s*.*?)["]+|[\']{2,}(\s*.*?)[\']{2,}|[=]+(\s*.*?)[=]+' msg = '' title = '' startdate = '' enddate = '' starttime = '' endtime = '' lines = self.lines # retrieve date pattern = re.compile(regex_date, re.UNICODE + re.MULTILINE) match = pattern.findall(lines) if not len(match): msg = 'at least one date field should be specified' self.printoutput('Parse Error', msg, '', '', 0) return # (month, day)-only date should be handled later startdate = match[0] if len(match) > 1: enddate = match[1] # retrieve time pattern = re.compile(regex_time, re.UNICODE + re.MULTILINE) match = pattern.findall(lines) if len(match) >= 2: starttime = match[0] endtime = match[1] elif len(match) == 0: starttime = '' endtime = '' else: msg = 'no or 2 time field should be specified' self.printoutput('Parse Error', msg, '', '', 0) return # retrieve title pattern = re.compile(regex_title, re.UNICODE + re.MULTILINE + re.DOTALL) match = pattern.search(lines) if not match: title = 'No title' else: for item in match.groups(): if item: title = item break # if no enddate, it's 1-day event if (not enddate) and (starttime and endtime): enddate = startdate # check the validity of date/time try: syear, smonth, sday = getdatefield(startdate ) if enddate: eyear, emonth, eday = getdatefield(enddate ) except: msg = 'invalid date format' self.printoutput('Parse Error', msg, '', '', 0) return if startdate and enddate: if datetime.date(syear, smonth, sday) > datetime.date(eyear, emonth, eday): msg = 'startdate should precede enddate' self.printoutput('Parse Error', msg, '', '', 0) return if starttime and endtime: try: shour, smin = gettimefield(starttime ) ehour, emin = gettimefield(endtime ) except: msg = 'invalid time format' self.printoutput('Parse Error', msg, '', '', 0) return if startdate == enddate: if datetime.time(shour, smin) > datetime.time(ehour, emin): msg = 'starttime should precede endtime' self.printoutput('Parse Error', msg, '', '', 0) return # format output fromstring = '%s %s' % (startdate, starttime) if enddate: tostring = '%s %s' % (enddate, endtime) else: tostring = '' startdateforbookmark = u'%d%02d%02d' % (syear, smonth, sday) self.printoutput(title, fromstring, tostring, startdateforbookmark, 1) def printoutput(self, title, fromstring, tostring, startdateforbookmark, successflag): formatter = self.formatter lines = self.lines if startdateforbookmark: bookmark = u'%s%s' % (title.replace(' ', ''), startdateforbookmark) # bookmark = urllib.quote_plus(bookmark.encode(config.charset)) html = u'' % bookmark self.request.write(formatter.rawHTML(html)) html = [ u'', u'', # u'
', u'', ] html = u'\n'.join(html) self.request.write(formatter.rawHTML(html)) wikiparser = wiki.Parser( lines, self.request ) wikiparser.format( formatter ) html = [ u' 
', # u'', # u'', # u'
 
 
 
', # u'', u'
 ', u'
', ] html = u'\n'.join(html) self.request.write(formatter.rawHTML(html)) if tostring: fromto = '%s ~ %s' % (fromstring, tostring) else: fromto = '%s' % fromstring if successflag: flag = '(!)' else: flag = '{X}' wikiparser = wiki.Parser( '%s \'\'\'~-%s-~\'\'\' ~-%s-~' % (flag, title, fromto), self.request ) wikiparser.format( formatter ) html = [ #u' %s' % msg, u'
', u'', ] html = u'\n'.join(html) self.request.write(formatter.rawHTML(html)) def getdatefield(str_date): str_year = '' str_month = '' str_day = '' if len(str_date) == 6: # year+month str_year = str_date[:4] str_month = str_date[4:] str_day = '1' elif len(str_date) == 8: # year+month+day str_year = str_date[:4] str_month = str_date[4:6] str_day = str_date[6:] elif len(str_date) == 10: # year+?+month+?+day str_year = str_date[:4] str_month = str_date[5:7] str_day = str_date[8:] else: raise ValueError # It raises exception if the input date is incorrect temp = datetime.date(int(str_year), int(str_month), int(str_day)) return temp.year, temp.month, temp.day def gettimefield(str_time): str_hour = '' str_min = '' if len(str_time) == 4: # hour+minute str_hour = str_time[:2] str_min = str_time[2:] elif len(str_time) == 5: # hour+?+minute str_hour = str_time[:2] str_min = str_time[3:] else: raise ValueError # It raises exception if the input date is incorrect temp = datetime.time(int(str_hour), int(str_min)) return temp.hour, temp.minute