From 3f25952c13d5847d510c0cae22a8ba876638d570 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:40:16 +0200 Subject: Adding upstream version 2.8.3. Signed-off-by: Daniel Baumann --- powerline/lib/overrides.py | 80 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 powerline/lib/overrides.py (limited to 'powerline/lib/overrides.py') diff --git a/powerline/lib/overrides.py b/powerline/lib/overrides.py new file mode 100644 index 0000000..3257d98 --- /dev/null +++ b/powerline/lib/overrides.py @@ -0,0 +1,80 @@ +# vim:fileencoding=utf-8:noet +from __future__ import (unicode_literals, division, absolute_import, print_function) + +import json + +from powerline.lib.dict import REMOVE_THIS_KEY + + +def parse_value(s): + '''Convert string to Python object + + Rules: + + * Empty string means that corresponding key should be removed from the + dictionary. + * Strings that start with a minus, digit or with some character that starts + JSON collection or string object are parsed as JSON. + * JSON special values ``null``, ``true``, ``false`` (case matters) are + parsed as JSON. + * All other values are considered to be raw strings. + + :param str s: Parsed string. + + :return: Python object. + ''' + if not s: + return REMOVE_THIS_KEY + elif s[0] in '"{[0123456789-' or s in ('null', 'true', 'false'): + return json.loads(s) + else: + return s + + +def keyvaluesplit(s): + '''Split K1.K2=VAL into K1.K2 and parsed VAL + ''' + if '=' not in s: + raise TypeError('Option must look like option=json_value') + if s[0] == '_': + raise ValueError('Option names must not start with `_\'') + idx = s.index('=') + o = s[:idx] + val = parse_value(s[idx + 1:]) + return (o, val) + + +def parsedotval(s): + '''Parse K1.K2=VAL into {"K1":{"K2":VAL}} + + ``VAL`` is processed according to rules defined in :py:func:`parse_value`. + ''' + if type(s) is tuple: + o, val = s + val = parse_value(val) + else: + o, val = keyvaluesplit(s) + + keys = o.split('.') + if len(keys) > 1: + r = (keys[0], {}) + rcur = r[1] + for key in keys[1:-1]: + rcur[key] = {} + rcur = rcur[key] + rcur[keys[-1]] = val + return r + else: + return (o, val) + + +def parse_override_var(s): + '''Parse a semicolon-separated list of strings into a sequence of values + + Emits the same items in sequence as :py:func:`parsedotval` does. + ''' + return ( + parsedotval(item) + for item in s.split(';') + if item + ) -- cgit v1.2.3