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# > !NewsStats.py.Analyse/py |
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|
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import os |
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import re |
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import rfc822 |
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import string |
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import types |
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import wimp |
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import mx.DateTime |
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import MainW |
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import Newsbase |
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|
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# Don't analyse these headers |
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ignore_headers = ('date', |
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'message-id', |
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'nntp-posting-date', |
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'path', |
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'received', |
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'references', |
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'xref', |
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'x-trace') |
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# Some regular expressions |
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lt = re.compile('<') |
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gt = re.compile('>') |
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ref = re.compile('^Re: ', re.IGNORECASE) |
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date1 = re.compile(r"^((\w\w\w,)? *\d\d? \w\w\w) ([89]\d )") |
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date2 = re.compile(r"^((\w\w\w,)? *\d\d? \w\w\w) ([0-7]\d )") |
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space = re.compile("(\n\s*)|(\t+)") |
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|
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extension = '/html' |
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|
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|
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def group(group, path, fast): |
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"Analyse a group" |
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global articles |
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article_numbers = [] |
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MainW.set_status(group, '', '0') |
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articles = Newsbase.ListArts(group) |
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if isinstance(articles, types.StringType): |
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return articles |
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if articles == []: |
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return 0 |
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MainW.set_status(group, '?', str(len(articles))) |
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init() |
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if fast: |
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wimp.hourglass_on() |
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h = {} |
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for article in articles: |
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h['from'] = article[2] |
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h['subject'] = article[3] |
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h['date'] = article[5] |
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process_headers(h) |
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end(group, path, 1) |
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else: |
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art_no = 0 |
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for article in articles: |
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wimp.handle(wimp.poll(0)) |
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success, details = Newsbase.GetArticle(group, article[0]) |
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if success: |
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file(details) |
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MainW.set_status(group, str(art_no), str(len(articles))) |
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art_no = art_no + 1 |
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else: |
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abort() |
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return details |
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end(group, path) |
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wimp.hourglass_off() |
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|
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|
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def init(): |
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"Get ready to analyse a group" |
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global headers, first, last |
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headers = {} |
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first = {} |
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last = {} |
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|
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|
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def file(file): |
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"Load an article file" |
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|
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# Open the article |
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f = open(file, 'r') |
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|
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# Read in the headers |
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m = rfc822.Message(f) |
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process_headers(m) |
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|
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# Close file |
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f.close() |
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|
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|
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def process_headers(m): |
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"Process a dictionary of headers" |
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# Increment the header dictionaries |
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for (header, content) in m.items(): |
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if '\n' in content or '\t' in content: |
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content = re.sub(space, ' ', content) |
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if not header in ignore_headers: |
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if headers.has_key(header): |
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header_d = headers[header] |
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else: |
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header_d = {} |
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headers[header] = header_d |
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if header == 'subject': |
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content = re.sub(ref, '', content) |
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elif header == 'lines': |
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content = eval(content) |
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if header_d.has_key(content): |
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header_d[content] = header_d[content] + 1 |
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else: |
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header_d[content] = 1 |
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|
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# Check dates for durations |
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if m.has_key('subject') and m.has_key('date'): |
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subject = re.sub(ref, '', m['subject']) |
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# fix century-less dates |
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date = re.sub(date2, r"\1 20\3", re.sub(date1, r"\1 19\3", m['date'])) |
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try: |
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time = mx.DateTime.ARPA.ParseDateTime(date) |
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if first.has_key(subject): |
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if time < first[subject]: |
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first[subject] = time |
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else: |
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first[subject] = time |
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if last.has_key(subject): |
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if time > last[subject]: |
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last[subject] = time |
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else: |
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last[subject] = time |
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except ValueError: |
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# malformed dates raise ValueError |
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pass |
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|
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|
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def end(group, dir, fast = 0): |
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"Analyse the collected data and write to file" |
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global headers, first, last |
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|
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# Calculate durations |
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durations = {} |
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for subject in headers['subject'].items(): |
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try: |
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durations[subject[0]] = last[subject[0]] - first[subject[0]] |
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except KeyError: |
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pass |
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|
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# Sort the headers |
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headers_list = headers.items() |
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if not fast: |
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headers_list.append(('=', {})) |
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headers_list.append(('duration', durations)) |
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headers_list.sort(_headersort) |
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|
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# Start the index file |
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os.makedirs(dir) |
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o = open(dir + '.index' + extension, 'w') |
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o.write((wimp.m['output.index.head'] + '\n') % (group, group)) |
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|
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# Write a file for each header |
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header_number = 1 |
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for header in headers_list: |
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if header[0] == '=': |
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o.write(wimp.m['output.index.separator'] + '\n') |
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continue |
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|
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o.write((wimp.m['output.index.line'] + '\n') % (str(header_number), header[0])) |
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p = open(dir + '.' + str(header_number) + extension, 'w') |
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p.write((wimp.m['output.page.head'] + '\n') % (group, header[0], group, header[0])) |
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|
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list = header[1].items() |
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if header[0] == 'lines': |
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list.sort() |
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lines_previous = list[0][0] - 1 |
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else: |
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list.sort(_valuesort) |
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value_length = len(str(list[0][1])) |
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for item in list: |
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text = (str(item[0]) + ' ' * 64)[:63] |
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if '<' in text: |
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text = re.sub(lt, '<', text) |
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if '>' in text: |
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text = re.sub(gt, '>', text) |
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if header[0] == 'lines': |
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if lines_previous != item[0] - 1: |
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p.write(wimp.m['output.page.gap'] + '\n') |
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lines_previous = item[0] |
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if header[0] == 'duration': |
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duration = int(item[1].hours) |
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if duration == 0: |
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p.write((wimp.m['output.page.line-0'] + '\n') % |
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(text, (' ' * value_length + str(item[1]))[-value_length:])) |
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else: |
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p.write((wimp.m['output.page.line-d'] + '\n') % |
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(text, (' ' * value_length + str(item[1]))[-value_length:], duration)) |
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else: |
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p.write((wimp.m['output.page.line'] + '\n') % |
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(text, (' ' * value_length + str(item[1]))[-value_length:], item[1])) |
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p.write(wimp.m['output.page.foot'] + '\n') |
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|
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p.close() |
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os.system('SetType ' + dir + '.' + str(header_number) + extension + ' FAF') |
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|
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header_number = header_number + 1 |
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|
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# Finish the file |
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o.write(wimp.m['output.index.foot'] + '\n') |
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|
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# Close the output file |
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o.close() |
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os.system('SetType ' + dir + '.index' + extension + ' FAF') |
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|
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del headers, first, last |
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|
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|
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def abort(): |
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"Abort analysis" |
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global headers, first, last |
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del headers, first, last |
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|
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|
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def _headersort(item1, item2): |
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"Sort the headers" |
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if item1[0] == 'subject': |
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return -1 |
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elif item2[0] == 'subject': |
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return 1 |
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elif item1[0] == 'from': |
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return -1 |
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elif item2[0] == 'from': |
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return 1 |
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elif item1[0] == 'lines': |
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return -1 |
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elif item2[0] == 'lines': |
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return 1 |
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elif item1[0] == 'duration': |
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return -1 |
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elif item2[0] == 'duration': |
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return 1 |
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elif item1[0] == '=': |
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return -1 |
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elif item2[0] == '=': |
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return 1 |
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elif item1[0] < item2[0]: |
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return -1 |
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return 1 |
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|
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|
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def _valuesort(item1, item2): |
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"Sort a former dictionary" |
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if item1[1] < item2[1]: |
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return 1 |
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elif item1[1] == item2[1]: |
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s1 = string.lower(item1[0]) |
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s2 = string.lower(item2[0]) |
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if s1 > s2: |
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return 1 |
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elif s1 == s2: |
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return 0 |
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return -1 |
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