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annotate roundup/cgi/accept_language.py @ 7695:2be7a8f66ea7

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fix: windows install using pip mislocates share directory The setup code that tries to make the share install path absolute prependeds something like: c:\program files\python_venv to the paths. The equivalent on linux is recognized as an absolute path. On windows this is treated oddly. This resulted in the share files being placed in: c:\program files\python_venv\Lib\site-packages\program files\python_venv\share Roundup was unable to find the files there. On windows (where the platform starts with 'win') don't make the path absolute. This puts share in: c:\program files\python_venv\Lib\share and Roundup finds them. The translations and templates are found by the roundup-server. The docs are also installed under the share directory. The man pages are not installed as windows doesn't have groff to format the source documents. This is the second fix from issues getting Roundup running on windows discussed on mailing list by Simon Eigeldinger. Thread starts with: https://sourceforge.net/p/roundup/mailman/message/41557096/ subject: Installing Roundup on Windows 2023-10-05.
author John Rouillard <rouilj@ieee.org>
date Sun, 05 Nov 2023 23:01:29 -0500
parents 63c9680eed20
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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52f89836d05b Parse the Accept-Language header as defined in RFC2616.
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1 """Parse the Accept-Language header as defined in RFC2616.
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2
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3 See http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4
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4 for details. This module should follow the spec.
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5 Author: Hernan M. Foffani (hfoffani@gmail.com)
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6 Some use samples:
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7
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8 >>> parse("da, en-gb;q=0.8, en;q=0.7")
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9 ['da', 'en_gb', 'en']
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10 >>> parse("en;q=0.2, fr;q=1")
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11 ['fr', 'en']
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12 >>> parse("zn; q = 0.2 ,pt-br;q =1")
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13 ['pt_br', 'zn']
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14 >>> parse("es-AR")
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15 ['es_AR']
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16 >>> parse("es-es-cat")
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17 ['es_es_cat']
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18 >>> parse("")
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19 []
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20 >>> parse(None)
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21 []
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22 >>> parse(" ")
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23 []
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24 >>> parse("en,")
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25 ['en']
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26 """
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27
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28 import re
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29 import heapq
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30
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31 # regexp for languange-range search
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32 nqlre = "([A-Za-z]+[-[A-Za-z]+]*)$"
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33 # regexp for languange-range search with quality value
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34 qlre = r"([A-Za-z]+[-[A-Za-z]+]*);q=([\d\.]+)"
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35 # both
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36 lre = re.compile(nqlre + "|" + qlre)
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37
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38 whitespace = ' \t\n\r\v\f'
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39 try:
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40 # Python 3.
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41 remove_ws = (str.maketrans('', '', whitespace),)
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42 except AttributeError:
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43 # Python 2.
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44 remove_ws = (None, whitespace)
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45
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46
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47 def parse(language_header):
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48 """parse(string_with_accept_header_content) -> languages list"""
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49
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50 if language_header is None: return [] # noqa: E701
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51
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52 # strip whitespaces.
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53 lh = language_header.translate(*remove_ws)
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54
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55 # if nothing, return
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56 if lh == "": return [] # noqa: E701
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57
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58 # split by commas and parse the quality values.
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59 pls = [lre.findall(x) for x in lh.split(',')]
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60
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61 # drop uncomformant
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62 qls = [x[0] for x in pls if len(x) > 0]
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63
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64 # use a heap queue to sort by quality values.
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65 # the value of each item is 1.0 complement.
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66 pq = []
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67 order = 0
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68 for lang in qls:
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69 order += 1
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70 if lang[0] != '':
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71 heapq.heappush(pq, (0.0, order, lang[0]))
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72 else:
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73 heapq.heappush(pq, (1.0-float(lang[2]), order, lang[1]))
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74
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75 # get the languages ordered by quality
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76 # and replace - by _
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77 return [heapq.heappop(pq)[2].replace('-', '_') for x in range(len(pq))]
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78
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79
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80 if __name__ == "__main__":
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81 import doctest
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82 doctest.testmod()
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83
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84 # vim: set et sts=4 sw=4 :
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