will-of-the-prophets
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Bump pyparsing from 3.0.7 to 3.1.0
Bumps pyparsing from 3.0.7 to 3.1.0.
Release notes
Sourced from pyparsing's releases.
Pyparsing 3.1.0a1
NOTE: In the future release 3.2.0, use of many of the pre-PEP8 methods (such as
ParserElement.parseString
) will start to raiseDeprecationWarnings
. 3.2.0 should get released some time later in 2023. I currently plan to completely drop the pre-PEP8 methods in pyparsing 4.0, though we won't see that release until at least late 2023 if not 2024. So there is plenty of time to convert existing parsers to the new function names before the old functions are completely removed. (Big help from Devin J. Pohly in structuring the code to enable this peaceful transition.)Version 3.2.0 will also discontinue support for Python versions 3.6 and 3.7.
API ENHANCEMENT:
Optional(expr)
may now be written asexpr | ""
This will make this code:
"{" + Optional(Literal("A") | Literal("a")) + "}"
writable as:
"{" + (Literal("A") | Literal("a") | "") + "}"
Some related changes implemented as part of this work:
Literal("")
now internally generates anEmpty()
(and no longer raises an exception)Empty
is now a subclass ofLiteral
Suggested by Antony Lee (issue #412), PR (#413) by Devin J. Pohly.
Added new class property
identifier
to all Unicode set classes inpyparsing.unicode
, using the class's values forcls.identchars
andcls.identbodychars
. Now Unicode-aware parsers that formerly wrote:ppu = pyparsing.unicode ident = Word(ppu.Greek.identchars, ppu.Greek.identbodychars)
can now write:
ident = ppu.Greek.identifier # or # ident = ppu.Ελληνικά.identifier
Reworked
delimited_list
function into the newDelimitedList
class.DelimitedList
has the same constructor interface asdelimited_list
, and in this release,delimited_list
changes from a function to a synonym forDelimitedList
.delimited_list
and the olderdelimitedList
method will be deprecated in a future release, in favor ofDelimitedList
.Added new class method
ParserElement.using_each
, to simplify code that creates a sequence ofLiterals
,Keywords
, or otherParserElement
subclasses.For instance, to define suppressable punctuation, you would previously write:
LPAR, RPAR, LBRACE, RBRACE, SEMI = map(Suppress, "(){};")
You can now write:
LPAR, RPAR, LBRACE, RBRACE, SEMI = Suppress.using_each("(){};")
using_each
will also accept optional keyword args, which it will pass through to the class initializer. Here is an expression for single-letter variable names that might be used in an algebraic expression:algebra_var = MatchFirst( Char.using_each(string.ascii_lowercase, as_keyword=True) )
... (truncated)
Changelog
Sourced from pyparsing's changelog.
Version 3.1.0 - June, 2023
- Added
tag_emitter.py
to examples. This example demonstrates how to insert tags into your parsed results that are not part of the original parsed text.Version 3.1.0b2 - May, 2023
Updated
create_diagram()
code to be compatible with railroad-diagrams package version 3.0. Fixes Issue #477 (railroad diagrams generated with black bars), reported by Sam Morley-Short.Fixed bug in
NotAny
, where parse actions on the negated expr were not being run. This could causeNotAny
to incorrectly fail if the expr would normally match, but would fail to match if a condition used as a parse action returned False. Fixes Issue #482, raised by byaka, thank you!Fixed
create_diagram()
to accept keyword args, to be passed through to thetemplate.render()
method to generate the output HTML (PR submitted by Aussie Schnore, good catch!)Fixed bug in
python_quoted_string
regex.Added
examples/bf.py
Brainf*ck parser/executor example. Illustrates using a pyparsing grammar to parse language syntax, and attach executable AST nodes to the parsed results.Version 3.1.0b1 - April, 2023
Added support for Python 3.12.
API CHANGE: A slight change has been implemented when unquoting a quoted string parsed using the
QuotedString
class. Formerly, when unquoting and processing whitespace markers such as \t and \n, these substitutions would occur first, and then any additional '' escaping would be done on the resulting string. This would parse "\n" as "<newline>". Now escapes and whitespace markers are all processed in a single pass working left to right, so the quoted string "\n" would get unquoted to "\n" (a backslash followed by "n"). Fixes issue #474 raised by jakeanq, thanks!Added named field "url" to
pyparsing.common.url
, returning the entire parsed URL string.Fixed bug when parse actions returned an empty string for an expression that had a results name, that the results name was not saved. That is:
expr = Literal("X").add_parse_action(lambda tokens: "")("value") result = expr.parse_string("X") print(result["value"])
... (truncated)
Commits
d5aafc3
Address warnings in test_simple_unit.py and lucene_grammar.py raised when run...e4f3ce2
Prep for 3.1.0 release40babe0
More example updates, PEP-8 names, f-strings.85c2ef1
Minor formatting change, bug-fix on 0000 time2fc41a0
Update ci.yml08e7cfd
Minor changes in examples, conversion to PEP8 names, etc.a8b05cc
Slight perf enhancement in Empty801863a
Make htmlStripper.py and html_table_parser examples use PEP-8 names, add comm...7d4da80
Prep for releasebe0310a
Add bf parser/executor example- Additional commits viewable in compare view
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