Groups > de.alt.folklore.computer > #50138

Re: COMAL

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From	ram@zedat.fu-berlin.de (Stefan Ram)
Newsgroups	de.alt.folklore.computer
Subject	Re: COMAL
Date	22 May 2025 12:24:07 GMT
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"Peter J. Holzer" <hjp-usenet4@hjp.at> schrieb oder zitierte:
>Aber man könnte sowas machen:
>try:
>    d = re.match(...).groupdict()
>    # use dictionary d here
>except AttributeError:
>    # no match

  Ja. Das dictionary d erlaubt recht lesbare Programmierung:

pattern = re.compile(r'''
    ^\(
        "(?P<first>[^"]*)"\s+       # First quoted string
        "(?P<second>[^"]*)"\s+      # Second quoted string
        (?P<num1>\d+\S*)\s+         # First number-like field
        (?P<num2>\d+\S*)\s+         # Second number-like field
        (?P<num3>\d+\S*)            # Third number-like field
    \)\s+
    (?P<tail>.*)                    # Remaining string
    $
''', re.VERBOSE)

match = pattern.match(line)
if match:
    values = match.groupdict()

  . Nun kann man Ausdrücke wie "values['num1']" verwenden, welche
  durch die Verwendung von Namen wie "num1" anstelle bloßer Zahlen
  gut lesbar sind.

  Wenn es einem nur um Kürze geht, könnte man einmalig 

import re
M = re.match  # abbreviation for re.match
G = lambda m: m.groups() if m else (None,) * 5  # quick group extractor

  definieren und dann 

m = M(r'^\("(.*?)"\s+".*?"\s+(\d.*?)\s+(\d.*?)\s+(\d.*?)\)\s+(.*?)$', line)
value1, value2, value3, value4, value5 = G(m)

  schreiben. Oder ohne "G":

m = M(r'^\("(.*?)"\s+".*?"\s+(\d.*?)\s+(\d.*?)\s+(\d.*?)\)\s+(.*?)$', line)
if m:
    for i, v in enumerate(m.groups(), 1): exec(f"value{i} = {repr(v)}")

  . In Python werden die üblichen Mittel der Sprache (Module,
  Aufrufe, r-Strings) eben konsistent auch für reguläre Ausdrücke
  eingesetzt und keine Spezialsyntax. Dies bedeutet, daß Benutzer-
  bibliotheken dieselben Mittel verwenden können wie die Sprache 
  selber (etwa um eigene, gleichberechtigte re-Bibliotheken zu 
  implementieren). Es ermöglicht es auch, mit den Mitteln von Python
  (wie oben) Abkürzungen zu definieren, falls man Wert darauf legt.

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COMAL "F. W." <me@home.invalid> - 2025-05-16 07:53 +0200
  Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-16 10:45 +0200
    Re: COMAL "F. W." <me@home.invalid> - 2025-05-19 07:59 +0200
      Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-19 09:36 +0200
        Re: COMAL "F. W." <me@home.invalid> - 2025-05-19 11:27 +0200
        Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-05-19 11:40 +0200
          Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-19 14:59 +0200
            Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-05-19 15:58 +0200
              Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-19 16:37 +0200
          Re: COMAL Thomas Koenig <tkoenig@netcologne.de> - 2025-05-31 10:16 +0000
            Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-06-01 17:19 +0200
              Re: COMAL Kay Martinen <usenet@martinen.de> - 2025-06-01 23:57 +0200
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-06-02 08:16 +0200
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-06-02 12:56 +0200
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-06-02 11:17 +0000
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-06-02 17:10 +0200
                Re: COMAL Kay Martinen <usenet@martinen.de> - 2025-06-04 11:54 +0200
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-06-04 13:16 +0200
                Re: COMAL Kay Martinen <usenet@martinen.de> - 2025-06-08 22:19 +0200
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-06-09 09:47 +0200
                Re: COMAL Kay Martinen <usenet@martinen.de> - 2025-06-09 16:38 +0200
                Re: COMAL Thomas Koenig <tkoenig@netcologne.de> - 2025-06-09 12:06 +0000
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-06-09 14:59 +0200
                Re: COMAL Thomas Koenig <tkoenig@netcologne.de> - 2025-06-09 14:02 +0000
                Re: COMAL Eric Bruecklmeier <nil@nil.nil> - 2025-06-10 08:08 +0200
                Re: COMAL Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-06-10 09:36 +0000
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-06-10 12:10 +0200
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-06-10 18:41 +0200
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-06-10 18:37 +0200
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-06-10 18:49 +0200
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-06-10 20:52 +0200
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-06-10 19:12 +0000
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-06-10 17:22 +0000
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-06-10 19:25 +0200
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-06-10 20:06 +0200
                Re: COMAL Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-06-10 06:18 +0000
                OOP (was: COMAL) "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-06-10 18:57 +0200
                Re: OOP ram@zedat.fu-berlin.de (Stefan Ram) - 2025-06-10 17:34 +0000
                Re: OOP ram@zedat.fu-berlin.de (Stefan Ram) - 2025-06-10 17:40 +0000
        Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-19 20:09 +0200
          Re: COMAL Kay Martinen <usenet@martinen.de> - 2025-05-19 22:19 +0200
            Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-19 23:40 +0200
              Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-20 08:41 +0000
          Re: COMAL Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-05-20 16:41 +0000
            Re: COMAL Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-05-20 16:49 +0000
              Re: COMAL Kay Martinen <usenet@martinen.de> - 2025-05-20 20:33 +0200
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-20 20:54 +0200
            Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-20 19:44 +0200
            Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-20 20:29 +0200
              Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-20 19:00 +0000
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-20 19:10 +0000
                Re: COMAL Kay Martinen <usenet@martinen.de> - 2025-05-20 21:33 +0200
              Re: COMAL Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-05-21 17:43 +0000
                Re: COMAL Gerrit Heitsch <gerrit@laosinh.s.bawue.de> - 2025-05-21 20:52 +0200
                Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-21 21:37 +0200
                Re: COMAL Gerrit Heitsch <gerrit@laosinh.s.bawue.de> - 2025-05-21 22:55 +0200
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-05-22 09:17 +0200
                Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-22 09:42 +0200
                Re: COMAL Gerrit Heitsch <gerrit@laosinh.s.bawue.de> - 2025-05-22 09:46 +0200
                Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-22 10:37 +0200
                Re: COMAL Christian Corti <use@reply.to> - 2025-05-22 11:15 +0200
                Re: COMAL Gerrit Heitsch <gerrit@laosinh.s.bawue.de> - 2025-05-22 11:52 +0200
                Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-22 12:35 +0200
                Re: COMAL Gerrit Heitsch <gerrit@laosinh.s.bawue.de> - 2025-05-22 13:08 +0200
                Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-22 15:27 +0200
                Re: COMAL Christian Corti <use@reply.to> - 2025-05-22 16:14 +0200
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-22 14:11 +0200
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-22 12:24 +0000
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-22 15:38 +0000
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-22 15:46 +0000
                Re: COMAL Kay Martinen <usenet@martinen.de> - 2025-05-31 15:38 +0200
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-05-22 09:44 +0200
                Re: COMAL Gerrit Heitsch <gerrit@laosinh.s.bawue.de> - 2025-05-22 09:48 +0200
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-05-22 10:11 +0200
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-05-22 10:12 +0200
                Re: COMAL "Peter Heitzer" <peter.heitzer@rz.uni-regensburg.de> - 2025-05-22 08:24 +0000
                Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-22 10:38 +0200
                Re: COMAL Stefan Reuther <stefan.news@arcor.de> - 2025-05-22 18:45 +0200
                Re: COMAL Stefan+Usenet@Froehlich.Priv.at (Stefan Froehlich) - 2025-05-22 10:22 +0000
                Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-05-22 09:16 +0200
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-22 08:25 +0200
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-22 09:10 +0000
                Re: COMAL Dietrich Clauss <dietrich@clauss-it.com> - 2025-05-22 11:34 +0200
                Re: COMAL Marc Haber <mh+usenetspam1118@zugschl.us> - 2025-05-22 12:36 +0200
                Re: COMAL "Peter Heitzer" <peter.heitzer@rz.uni-regensburg.de> - 2025-05-22 12:43 +0000
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-22 15:13 +0200
                Re: COMAL Gerrit Heitsch <gerrit@laosinh.s.bawue.de> - 2025-05-22 16:36 +0200
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-22 16:51 +0200
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-22 15:01 +0000
                Re: COMAL Gerrit Heitsch <gerrit@laosinh.s.bawue.de> - 2025-05-22 17:18 +0200
                Re: COMAL Dietrich Clauss <dietrich@clauss-it.com> - 2025-05-22 20:31 +0200
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-22 19:47 +0000
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-23 03:54 +0200
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-23 08:43 +0000
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-23 13:56 +0200
                Re: COMAL Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-05-23 15:04 +0200
                Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-23 13:25 +0000
                Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-23 16:23 +0200
                Re: COMAL Christian Corti <use@reply.to> - 2025-05-26 11:59 +0200
                Re: COMAL Hermann Riemann <nospam.ng@hermann-riemann.de> - 2025-05-23 11:29 +0200
          Re: COMAL "F. W." <me@home.invalid> - 2025-05-26 09:27 +0200
        Re: COMAL Stefan Reuther <stefan.news@arcor.de> - 2025-05-20 18:47 +0200
          Re: COMAL Andreas Eder <a_eder_muc@web.de> - 2025-05-27 21:56 +0200
    Re: COMAL Thomas Koenig <tkoenig@netcologne.de> - 2025-05-31 13:19 +0000
  Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-05-16 11:53 +0200
    Re: COMAL "F. W." <me@home.invalid> - 2025-05-19 08:01 +0200
      Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-05-19 08:14 +0200
        Re: COMAL "F. W." <me@home.invalid> - 2025-05-19 08:51 +0200
          Re: COMAL Eric Bruecklmeier <u@5i7.de> - 2025-05-19 09:05 +0200
        Re: COMAL Kay Martinen <usenet@martinen.de> - 2025-05-19 09:02 +0200
          Re: COMAL "F. W." <me@home.invalid> - 2025-05-19 09:20 +0200
          Re: COMAL "Peter J. Holzer" <hjp-usenet4@hjp.at> - 2025-05-19 19:59 +0200
            Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-19 18:16 +0000
              Re: COMAL ram@zedat.fu-berlin.de (Stefan Ram) - 2025-05-19 18:36 +0000
              Re: COMAL Eric Bruecklmeier <nil@nil.nil> - 2025-05-20 07:57 +0200
            Re: COMAL Eric Bruecklmeier <nil@nil.nil> - 2025-05-20 07:48 +0200

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