Mercurial > libervia-backend
annotate sat/tools/common/regex.py @ 3399:506fa3d91d3a
plugin XEP-0363: fixed invalid reference to `slot` in catched exception:
`slot` was referenced in an exception where it can't exist. This fix avoid a crash and
skip the handler when a StanzaError is catched.
author | Goffi <goffi@goffi.org> |
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date | Thu, 12 Nov 2020 14:53:15 +0100 |
parents | 559a625a236b |
children | be6d91572633 |
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3028 | 1 #!/usr/bin/env python3 |
3137 | 2 |
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3 |
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4 # Salut à Toi: an XMPP client |
3136 | 5 # Copyright (C) 2009-2020 Jérôme Poisson (goffi@goffi.org) |
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6 |
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7 # This program is free software: you can redistribute it and/or modify |
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8 # it under the terms of the GNU Affero General Public License as published by |
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9 # the Free Software Foundation, either version 3 of the License, or |
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10 # (at your option) any later version. |
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11 |
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12 # This program is distributed in the hope that it will be useful, |
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 # GNU Affero General Public License for more details. |
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16 |
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17 # You should have received a copy of the GNU Affero General Public License |
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 |
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20 """ regex tools common to backend and frontends """ |
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21 |
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22 import re |
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23 |
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24 path_escape = {"%": "%25", "/": "%2F", "\\": "%5c"} |
3028 | 25 path_escape_rev = {re.escape(v): k for k, v in path_escape.items()} |
26 path_escape = {re.escape(k): v for k, v in path_escape.items()} | |
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27 # thanks to Martijn Pieters (https://stackoverflow.com/a/14693789) |
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28 RE_ANSI_REMOVE = re.compile(r"\x1b[^m]*m") |
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29 |
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30 |
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31 def reJoin(exps): |
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32 """Join (OR) various regexes""" |
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33 return re.compile("|".join(exps)) |
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34 |
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35 |
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36 def reSubDict(pattern, repl_dict, string): |
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37 """Replace key, value found in dict according to pattern |
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38 |
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39 @param pattern(basestr): pattern using keys found in repl_dict |
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40 @repl_dict(dict): keys found in this dict will be replaced by |
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41 corresponding values |
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42 @param string(basestr): string to use for the replacement |
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43 """ |
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44 return pattern.sub(lambda m: repl_dict[re.escape(m.group(0))], string) |
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45 |
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46 |
3028 | 47 path_escape_re = reJoin(list(path_escape.keys())) |
48 path_escape_rev_re = reJoin(list(path_escape_rev.keys())) | |
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49 |
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50 |
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51 def pathEscape(string): |
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52 """Escape string so it can be use in a file path |
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53 |
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54 @param string(basestr): string to escape |
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55 @return (str, unicode): escaped string, usable in a file path |
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56 """ |
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57 return reSubDict(path_escape_re, path_escape, string) |
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58 |
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59 |
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60 def pathUnescape(string): |
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61 """Unescape string from value found in file path |
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62 |
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63 @param string(basestr): string found in file path |
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64 @return (str, unicode): unescaped string |
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65 """ |
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66 return reSubDict(path_escape_rev_re, path_escape_rev, string) |
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67 |
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68 |
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69 def ansiRemove(string): |
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70 """Remove ANSI escape codes from string |
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71 |
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72 @param string(basestr): string to filter |
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73 @return (str, unicode): string without ANSI escape codes |
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74 """ |
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75 return RE_ANSI_REMOVE.sub("", string) |