diff options
Diffstat (limited to 'src/CHANGES')
| -rw-r--r-- | src/CHANGES | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/src/CHANGES b/src/CHANGES index aa0dcee..446e3b4 100644 --- a/src/CHANGES +++ b/src/CHANGES @@ -4,6 +4,31 @@ Change Log Verison 2.1.5 -
------------------------------
+- Added a new parse action construction helper tokenMap, which will
+ apply a function and optional arguments to each element in a
+ ParseResults. So this parse action:
+
+ def lowercase_all(tokens):
+ return [str(t).lower() for t in tokens]
+ OneOrMore(Word(alphas)).setParseAction(lowercase_all)
+
+ can now be written:
+
+ OneOrMore(Word(alphas)).setParseAction(tokenMap(str.lower))
+
+ Also simplifies writing conversion parse actions like:
+
+ integer = Word(nums).setParseAction(lambda t: int(t[0]))
+
+ to just:
+
+ integer = Word(nums).setParseAction(tokenMap(int))
+
+ If additional arguments are necessary, they can be included in the
+ call to tokenMap, as in:
+
+ hex_integer = Word(hexnums).setParseAction(tokenMap(int, 16))
+
- Added more expressions to pyparsing_common:
. IPv4 and IPv6 addresses (including long, short, and mixed forms
of IPv6)
@@ -16,9 +41,9 @@ Verison 2.1.5 - and an output list of each test and its output lines.
- Added failureTests argument (default=False) to runTests, so that
- tests can be run that are expected failures, and if all tests fail
- as expected, the runTests' success value will return True. Also,
- parseAll now default to True.
+ tests can be run that are expected failures, and runTests' success
+ value will return True only if all tests *fail* as expected. Also,
+ parseAll now defaults to True.
Version 2.1.4 - May, 2016
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