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Add verb conjugation module

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Griatch 2021-03-22 00:46:04 +01:00
parent 2c7163ba74
commit 24a6d2cfab
10 changed files with 10193 additions and 22 deletions
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2
CHANGELOG.md
View file

@ -42,6 +42,8 @@
user davewiththenicehat. Also add new doc string.
- Add central `FuncParser` as a much more powerful replacement for the old `parse_inlinefunc`
function.
- Add `evennia/utils/verb_conjugation` for automatic verb conjugation (English only). This
is useful for implementing actor-stance emoting for sending a string to different targets.
### Evennia 0.9.5 (2019-2020)

6
evennia/commands/default/building.py
View file

@ -25,7 +25,7 @@ from evennia.utils.ansi import raw as ansi_raw
COMMAND_DEFAULT_CLASS = class_from_module(settings.COMMAND_DEFAULT_CLASS)
_FUNCPARSER = funcparser.FuncParser(settings.INLINEFUNC_MODULES)
_FUNCPARSER = None
# limit symbol import for API
__all__ = (
@ -2381,6 +2381,10 @@ class CmdExamine(ObjManipCommand):
value (any): Attribute value.
Returns:
"""
global _FUNCPARSER
if not _FUNCPARSER:
_FUNCPARSER = funcparser.FuncParser(settings.INLINEFUNC_MODULES)
if attr is None:
return "No such attribute was found."
value = utils.to_str(value)

649
evennia/utils/funcparser.py
View file

@ -24,7 +24,6 @@ def funcname(*args, **kwargs):
...
return something
```
Usage:
@ -43,9 +42,16 @@ The `FuncParser` also accepts a direct dict mapping of `{'name': callable, ...}`
"""
import dataclasses
import inspect
import random
from django.conf import settings
from ast import literal_eval
from simpleeval import simple_eval
from evennia.utils import logger
from evennia.utils.utils import make_iter, callables_from_module
from evennia.utils.utils import (
make_iter, callables_from_module, variable_from_module, pad, crop, justify)
from evennia.utils import search
_CLIENT_DEFAULT_WIDTH = settings.CLIENT_DEFAULT_WIDTH
_MAX_NESTING = 20
_ESCAPE_CHAR = "\\"
@ -95,7 +101,7 @@ class FuncParser:
"""
def __init__(self,
safe_callables,
callables,
start_char=_START_CHAR,
escape_char=_ESCAPE_CHAR,
max_nesting=_MAX_NESTING,
@ -104,15 +110,16 @@ class FuncParser:
Initialize the parser.
Args:
safe_callables (str, module, list or dict): Where to find
'safe' functions to make available in the parser. All callables
in provided modules (whose names don't start with an
underscore) are considered valid functions to access as
`$funcname(*args, **kwags)` during parsing. If a `str`, this
should be the path to such a module. A `list` can either be a
list of paths or module objects. If a `dict`, this should be a
mapping `{"funcname": callable, ...}` - this will be used
directly as valid parseable functions.
callables (str, module, list or dict): Where to find
'safe' functions to make available in the parser. These modules
can have a dict `FUNCPARSER_CALLABLES = {"funcname": callable, ...}`.
If no such dict exists, all callables in provided modules (whose names
don't start with an underscore) will be loaded as callables. Each
callable will will be available to call as `$funcname(*args, **kwags)`
during parsing. If `callables` is a `str`, this should be the path
to such a module. A `list` can either be a list of paths or module
objects. If a `dict`, this should be a direct mapping
`{"funcname": callable, ...}` to use.
start_char (str, optional): A character used to identify the beginning
of a parseable function. Default is `$`.
escape_char (str, optional): Prepend characters with this to have
@ -127,17 +134,29 @@ class FuncParser:
into `.parse` as `**reserved_kwargs` instead.
"""
if isinstance(safe_callables, dict):
callables = {**safe_callables}
if isinstance(callables, dict):
loaded_callables = {**callables}
else:
# load all modules/paths in sequence. Later-added will override
# earlier same-named callables (allows for overriding evennia defaults)
callables = {}
for safe_callable in make_iter(safe_callables):
# callables_from_module handles both paths and module instances
callables.update(callables_from_module(safe_callable))
self.validate_callables(callables)
self.callables = callables
loaded_callables = {}
for module_or_path in make_iter(callables):
callables_mapping = variable_from_module(
module_or_path, variable="FUNCPARSER_CALLABLES")
if callables_mapping:
try:
# mapping supplied in variable
loaded_callables.update(callables_mapping)
except ValueError:
raise ParsingError(
f"Failure to parse - {module_or_path}.FUNCPARSER_CALLABLES "
"(must be a dict {'funcname': callable, ...})")
else:
# use all top-level variables
# (handles both paths and module instances
loaded_callables.update(callables_from_module(module_or_path))
self.validate_callables(loaded_callables)
self.callables = loaded_callables
self.escape_char = escape_char
self.start_char = start_char
self.default_kwargs = default_kwargs
@ -555,3 +574,593 @@ class FuncParser:
return_str=False, **reserved_kwargs)
#
# Default funcparser callables. These are made available from this module's
# FUNCPARSER_CALLABLES.
#
def funcparser_callable_eval(*args, **kwargs):
"""
Funcparser callable. This will combine safe evaluations to try to parse the
incoming string into a python object. If it fails, the return will be same
as the input.
Args
string (str): The string to parse. Only simple literals or operators are allowed.
Returns:
any: The string parsed into its Python form, or the same as input.
Example:
`$py(1)`
`$py([1,2,3,4])`
`$py(3 + 4)`
"""
if not args:
return ''
inp = args[0]
if not isinstance(inp, str):
# already converted
return inp
try:
return literal_eval(inp)
except Exception:
try:
return simple_eval(inp)
except Exception:
return inp
def funcparser_callable_toint(*args, **kwargs):
"""Usage: toint(43.0) -> 43"""
inp = funcparser_callable_eval(*args, **kwargs)
try:
return int(inp)
except TypeError:
return inp
def _apply_operation_two_elements(*args, operator="+", **kwargs):
"""
Helper operating on two arguments
Args:
val1 (any): First value to operate on.
val2 (any): Second value to operate on.
Return:
any: The result of val1 + val2. Values must be
valid simple Python structures possible to add,
such as numbers, lists etc. The $eval is usually
better for non-list arithmetic.
"""
if not len(args) > 1:
return ''
val1, val2 = args[0], args[1]
# try to convert to python structures, otherwise, keep as strings
if isinstance(val1, str):
try:
val1 = literal_eval(val1.strip())
except Exception:
pass
if isinstance(val2, str):
try:
val2 = literal_eval(val2.strip())
except Exception:
pass
if operator == "+":
return val1 + val2
elif operator == "-":
return val1 - val2
elif operator == "*":
return val1 * val2
elif operator == "/":
return val1 / val2
def funcparser_callable_add(*args, **kwargs):
"""Usage: $add(val1, val2) -> val1 + val2"""
return _apply_operation_two_elements(*args, operator='+', **kwargs)
def funcparser_callable_sub(*args, **kwargs):
"""Usage: $sub(val1, val2) -> val1 - val2"""
return _apply_operation_two_elements(*args, operator='-', **kwargs)
def funcparser_callable_mult(*args, **kwargs):
"""Usage: $mult(val1, val2) -> val1 * val2"""
return _apply_operation_two_elements(*args, operator='*', **kwargs)
def funcparser_callable_div(*args, **kwargs):
"""Usage: $mult(val1, val2) -> val1 / val2"""
return _apply_operation_two_elements(*args, operator='/', **kwargs)
def funcparser_callable_round(*args, **kwargs):
"""
Funcparser callable. Rounds an incoming float to a
certain number of significant digits.
Args:
inp (str or number): If a string, it will attempt
to be converted to a number first.
significant (int): The number of significant digits. Default is None -
this will turn the result into an int.
Returns:
any: The rounded value or inp if inp was not a number.
Examples:
- `$round(3.5434343, 3)` - gives 3.543
- `$round($random(), 2)` - rounds random result, e.g 0.22
"""
if not args:
return ''
inp, *significant = args
significant = significant[0] if significant else '0'
lit_inp = inp
if isinstance(inp, str):
try:
lit_inp = literal_eval(inp)
except Exception:
return inp
try:
int(significant)
except Exception:
significant = 0
try:
round(lit_inp, significant)
except Exception:
return ''
def funcparser_callable_random(*args, **kwargs):
"""
Funcparser callable. Returns a random number between 0 and 1, from 0 to a
maximum value, or within a given range (inclusive).
Args:
minval (str, optional): Minimum value. If not given, assumed 0.
maxval (str, optional): Maximum value.
Notes:
If either of the min/maxvalue has a '.' in it, a floating-point random
value will be returned. Otherwise it will be an
integer value in the given range.
Examples:
- `$random()` - random value [0 .. 1) (float).
- `$random(5)` - random value [0..5] (int)
- `$random(5.0)` - random value [0..5] (float)
- `$random(5, 10)` - random value [5..10] (int)
- `$random(5, 10.0)` - random value [5..10] (float)
"""
nargs = len(args)
if nargs == 1:
# only maxval given
minval, maxval = "0", args[0]
elif nargs > 1:
minval, maxval = args[:2]
else:
minval, maxval = ("0", "1")
if "." in minval or "." in maxval:
# float mode
try:
minval, maxval = float(minval), float(maxval)
except ValueError:
minval, maxval = 0, 1
return minval + maxval * random.random()
else:
# int mode
try:
minval, maxval = int(minval), int(maxval)
except ValueError:
minval, maxval = 0, 1
return random.randint(minval, maxval)
def funcparser_callable_randint(*args, **kwargs):
"""
Usage: $randint(start, end):
Legacy alias - alwas returns integers.
"""
return int(funcparser_callable_random(*args, **kwargs))
def funcparser_callable_choice(*args, **kwargs):
"""
FuncParser callable. Picks a random choice from a list.
Args:
listing (list): A list of items to randomly choose between.
This will be converted from a string to a real list.
Returns:
any: The randomly chosen element.
Example:
- `$choice([key, flower, house])`
- `$choice([1, 2, 3, 4])`
"""
if not args:
return ''
inp = args[0]
if not isinstance(inp, str):
inp = literal_eval(inp)
return random.choice(inp)
def funcparser_callable_pad(*args, **kwargs):
"""
FuncParser callable. Pads text to given width, optionally with fill-characters
Args:
text (str): Text to pad.
width (int): Width of padding.
align (str, optional): Alignment of padding; one of 'c', 'l' or 'r'.
fillchar (str, optional): Character used for padding. Defaults to a space.
Example:
- `$pad(text, 12, l, ' ')`
- `$pad(text, width=12, align=c, fillchar=-)`
"""
if not args:
return ''
text, *rest = args
nargs = len(args)
try:
width = int(kwargs.get("width", rest[0] if nargs > 0 else _CLIENT_DEFAULT_WIDTH))
except TypeError:
width = _CLIENT_DEFAULT_WIDTH
align = kwargs.get("align", rest[1] if nargs > 1 else 'c')
fillchar = kwargs.get("fillchar", rest[2] if nargs > 2 else ' ')
if fillchar not in ('c', 'l', 'r'):
fillchar = 'c'
return pad(str(text), width=width, align=align, fillchar=fillchar)
def funcparser_callable_space(*args, **kwarg):
"""
Usage: $space(43)
Insert a length of space.
"""
if not args:
return ''
try:
width = int(args[0])
except TypeError:
width = 1
return " " * width
def funcparser_callable_crop(*args, **kwargs):
"""
FuncParser callable. Crops ingoing text to given widths.
Args:
text (str, optional): Text to crop.
width (str, optional): Will be converted to an integer. Width of
crop in characters.
suffix (str, optional): End string to mark the fact that a part
of the string was cropped. Defaults to `[...]`.
Example:
`$crop(text, 78, [...])`
`$crop(text, width=78, suffix='[...]')`
"""
if not args:
return ''
text, *rest = args
nargs = len(args)
try:
width = int(kwargs.get("width", rest[0] if nargs > 0 else _CLIENT_DEFAULT_WIDTH))
except TypeError:
width = _CLIENT_DEFAULT_WIDTH
suffix = kwargs.get('suffix', rest[1] if nargs > 1 else "[...]")
return crop(str(text), width=width, suffix=str(suffix))
def funcparser_callable_justify(*args, **kwargs):
"""
Justify text across a width, default across screen width.
Args:
text (str): Text to justify.
width (int, optional): Defaults to default screen width.
align (str, optional): One of 'l', 'c', 'r' or 'f' for 'full'.
indent (int, optional): Intendation of text block, if any.
Returns:
str: The justified text.
Examples:
- $just(text, width=40)
- $just(text, align=r, indent=2)
"""
if not args:
return ''
text = args[0]
try:
width = int(kwargs.get("width", _CLIENT_DEFAULT_WIDTH))
except TypeError:
width = _CLIENT_DEFAULT_WIDTH
align = str(kwargs.get("align", 'f'))
try:
indent = int(kwargs.get("indent", 0))
except TypeError:
indent = 0
return justify(str(text), width=width, align=align, indent=indent)
# legacy for backwards compatibility
def funcparser_callable_left_justify(*args, **kwargs):
"Usage: $ljust(text)"
return funcparser_callable_justify(*args, justify='l', **kwargs)
def funcparser_callable_right_justify(*args, **kwargs):
"Usage: $rjust(text)"
return funcparser_callable_justify(*args, justify='r', **kwargs)
def funcparser_callable_center_justify(*args, **kwargs):
"Usage: $cjust(text)"
return funcparser_callable_justify(*args, justify='c', **kwargs)
def funcparser_callable_clr(*args, **kwargs):
"""
FuncParser callable. Colorizes nested text.
Args:
startclr (str, optional): An ANSI color abbreviation without the
prefix `|`, such as `r` (red foreground) or `[r` (red background).
text (str, optional): Text
endclr (str, optional): The color to use at the end of the string. Defaults
to `|n` (reset-color).
Kwargs:
color (str, optional): If given,
Example:
- `$clr(r, text, n)`
- `$clr(r, text)`
- `$clr(text, start=r, end=n)`
"""
if not args:
return ''
startclr, text, endclr = '', '', ''
if len(args) > 1:
# $clr(pre, text, post))
startclr, *rest = args
if rest:
text, *endclr = rest
if endclr:
endclr = endclr[0]
else:
# $clr(text, start=pre, end=post)
text = args[0]
startclr = kwargs.get("start", '')
endclr = kwargs.get("end", '')
startclr = "|" + startclr if startclr else ""
endclr = "|" + endclr if endclr else ("|n" if startclr else '')
return f"{startclr}{text}{endclr}"
def funcparser_callable_search(*args, caller=None, access="control", **kwargs):
"""
FuncParser callable. Finds an object based on name or #dbref. Note that
this requries the parser be called with the caller's Session for proper
security. If called without session, the call is aborted.
Args:
query (str): The key or dbref to search for.
Kwargs:
return_list (bool): If set, return a list of objects with
0, 1 or more matches to `query`. Defaults to False.
type (str): One of 'obj', 'account', 'script'
caller (Entity): Supplied to Parser. This is required and will
be passed into the access check for the entity being searched for.
The 'control' permission is required.
access (str): Which locktype access to check. Unset to disable the
security check.
Returns:
any: An entity match or None if no match or a list if `return_list` is set.
Raise:
ParsingError: If zero/multimatch and `return_list` is False.
Examples:
- "$search(#233)"
- "$search(Tom, type=account)"
- "$search(meadow, return_list=True)"
"""
return_list = bool(kwargs.get("return_list", "False"))
if not (args and caller):
return [] if return_list else None
query = str(args[0])
typ = kwargs.get("type", "obj")
targets = []
if typ == "obj":
targets = search.search_object(query)
elif typ == "account":
targets = search.search_account(query)
elif typ == "script":
targets = search.search_script(query)
if not targets:
if return_list:
return []
raise ParsingError(f"$search: Query '{query}' gave no matches.")
if len(targets) > 1 and not return_list:
raise ParsingError("$search: Query '{query}' found {num} matches. "
"Set return_list=True to accept a list".format(
query=query, num=len(targets)))
for target in targets:
if not target.access(caller, target, access):
raise ParsingError('$search Cannot add found entity - access failure.')
return list(targets) if return_list else targets[0]
def funcparser_callable_search_list(*args, caller=None, access="control", **kwargs):
"""
Usage: $objlist(#123)
Legacy alias for search with a return_list=True kwarg preset.
"""
return funcparser_callable_search(*args, caller=caller, access=access,
return_list=True, **kwargs)
def funcparser_callable_you(*args, you_obj=None, you_target=None, capitalize=False, **kwargs):
"""
Usage: %you()
Replaces with you for the caller of the string, with the display_name
of the caller for others.
Kwargs:
you_obj (Object): The object who represents 'you' in the string.
you_target (Object): The recipient of the string.
capitalize (bool): Passed by the You helper, to capitalize you.
Returns:
str: The parsed string.
Raises:
ParsingError: If `you_obj` and `you_target` were not supplied.
Notes:
The kwargs must be supplied to the parse method. If not given,
the parsing will be aborted. Note that it will not capitalize
Examples:
This can be used by the say or emote hooks to pass actor stance
strings. This should usually be combined with the $inflect() callable.
- `With a grin, $you() $conj(jump).`
The You-object will see "With a grin, you jump."
Others will see "With a grin, CharName jumps."
"""
if not (you_obj and you_target):
raise ParsingError("No you_obj/target supplied to $you callable")
capitalize = bool(capitalize)
if you_obj == you_target:
return "You" if capitalize else "you"
return you_obj.get_display_name(looker=you_target)
def funcparser_callable_You(*args, you_obj=None, you_target=None, capitalize=True, **kwargs):
"""
Usage: $You() - capitalizes the 'you' output.
"""
return funcparser_callable_you(
*args, you_obj=you_obj, you_target=you_target, capitalize=capitalize, **kwargs)
def funcparser_callable_conjugate(*args, you_obj=None, you_target=None, **kwargs):
"""
Conjugate a verb according to if it should be 2nd or third person. The
mlconjug3 package supports French, English, Italian, Portugese and Romanian
(see https://pypi.org/project/mlconjug3/). The function will pick the
language from settings.LANGUAGE_CODE, or English if an unsupported language
was found.
Kwargs:
you_obj (Object): The object who represents 'you' in the string.
you_target (Object): The recipient of the string.
Returns:
str: The parsed string.
Raises:
ParsingError: If `you_obj` and `you_target` were not supplied.
Notes:
The kwargs must be supplied to the parse method. If not given,
the parsing will be aborted. Note that it will not capitalize
Exampels:
This is often used in combination with the $you/You( callables.
- `With a grin, $you() $conj(jump)`
The You-object will see "With a grin, you jump."
Others will see "With a grin, CharName jumps."
"""
if not (you_obj and you_target):
raise ParsingError("No you_obj/target supplied to $conj callable")
return ''
# these are made available as callables by adding 'evennia.utils.funcparser' as
# a callable-path when initializing the FuncParser.
FUNCPARSER_CALLABLES = {
# eval and arithmetic
"eval": funcparser_callable_eval,
"add": funcparser_callable_add,
"sub": funcparser_callable_sub,
"mult": funcparser_callable_mult,
"div": funcparser_callable_div,
"round": funcparser_callable_round,
"toint": funcparser_callable_toint,
# randomizers
"random": funcparser_callable_random,
"randint": funcparser_callable_randint,
"choice": funcparser_callable_choice,
# string manip
"pad": funcparser_callable_pad,
"crop": funcparser_callable_crop,
"just": funcparser_callable_justify,
"ljust": funcparser_callable_left_justify,
"rjust": funcparser_callable_right_justify,
"cjust": funcparser_callable_center_justify,
"justify": funcparser_callable_justify, # aliases for backwards compat
"justify_left": funcparser_callable_left_justify,
"justify_right": funcparser_callable_right_justify,
"justify_center": funcparser_callable_center_justify,
"space": funcparser_callable_space,
"clr": funcparser_callable_clr,
# seaching
"search": funcparser_callable_search,
"obj": funcparser_callable_search, # aliases for backwards compat
"objlist": funcparser_callable_search_list,
"dbref": funcparser_callable_search,
# referencing
"you": funcparser_callable_you,
"You": funcparser_callable_You,
}

23
evennia/utils/tests/test_funcparser.py
View file

@ -267,8 +267,29 @@ class TestFuncParser(TestCase):
ret = parser.parse("This is a $foo(foo=moo) string", foo="bar")
self.assertEqual("This is a _test(test=foo, foo=bar) string", ret)
class TestDefaultCallables(TestCase):
"""
Test default callables.
"""
@override_settings(INLINEFUNC_MODULES=["evennia.utils.funcparser"])
def setUp(self):
from django.conf import settings
self.parser = funcparser.FuncParser(settings.INLINEFUNC_MODULES)
@parameterized.expand([
("Test py1 $py('')", "Test py1 ''"),
])
def test_callable(self, string, expected):
"""
Test callables with various input strings
"""
ret = self.parser.parse(string, raise_errors=True)
self.assertEqual(expected, ret)
class TestOldDefaultCallables(TestCase):
"""
Test default callables

340
evennia/utils/verb_conjugation/LICENSE.txt Normal file
View file

@ -0,0 +1,340 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
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We protect your rights with two steps: (1) copyright the software, and
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The precise terms and conditions for copying, distribution and
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evennia/utils/verb_conjugation/__init__.py Normal file
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evennia/utils/verb_conjugation/conjugate.py Normal file
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"""
English verb conjugation
Original Author: Tom De Smedt <tomdesmedt@organisms.be> of Nodebox
Refactored by Griatch 2021, for Evennia.
This is distributed under the GPL2 license. See ./LICENSE.txt for details.
The verb.txt morphology was adopted from the XTAG morph_englis.flat:
http://www.cis.upenn.edu/~xtag/
"""
import os
_VERBS_FILE = "verbs.txt"
# Each verb and its tenses is a list in verbs.txt,
# indexed according to the following keys:
# the negated forms (for supported verbs) are ind+11.
verb_tenses_keys = {
"infinitive": 0,
"1st singular present": 1,
"2nd singular present": 2,
"3rd singular present": 3,
"present plural": 4,
"present participle": 5,
"1st singular past": 6,
"2nd singular past": 7,
"3rd singular past": 8,
"past plural": 9,
"past": 10,
"past participle": 11,
}
# allow to specify tenses with a shorter notation
verb_tenses_aliases = {
"inf": "infinitive",
"1sgpres": "1st singular present",
"2sgpres": "2nd singular present",
"3sgpres": "3rd singular present",
"pl": "present plural",
"prog": "present participle",
"1sgpast": "1st singular past",
"2sgpast": "2nd singular past",
"3sgpast": "3rd singular past",
"pastpl": "past plural",
"ppart": "past participle",
}
# Each verb has morphs for infinitve,
# 3rd singular present, present participle,
# past and past participle.
# Verbs like "be" have other morphs as well
# (i.e. I am, you are, she is, they aren't)
# Additionally, the following verbs can be negated:
# be, can, do, will, must, have, may, need, dare, ought.
# load the conjugation forms from ./verbs.txt
verb_tenses = {}
path = os.path.join(os.path.dirname(__file__), _VERBS_FILE)
with open(path) as fil:
for line in fil.readlines():
wordlist = [part.strip() for part in line.split(",")]
verb_tenses[wordlist[0]] = wordlist
# Each verb can be lemmatised:
# inflected morphs of the verb point
# to its infinitive in this dictionary.
verb_lemmas = {}
for infinitive in verb_tenses:
for tense in verb_tenses[infinitive]:
if tense:
verb_lemmas[tense] = infinitive
def verb_infinitive(verb):
"""
Returns the uninflected form of the verb, like 'are' -> 'be'
Args:
verb (str): The verb to get the uninflected form of.
Returns:
str: The uninflected verb form of `verb`.
"""
return verb_lemmas.get(verb, '')
def verb_conjugate(verb, tense="infinitive", negate=False):
"""
Inflects the verb to the given tense.
Args:
verb (str): The single verb to conjugate.
tense (str): The tense to convert to. This can be given either as a long or short form
- "infinitive" ("inf") - be
- "1st/2nd/3rd singular present" ("1/2/3sgpres") - am/are/is
- "present plural" ("pl") - are
- "present participle" ("prog") - being
- "1st/2nd/3rd singular past" ("1/2/3sgpast") - was/were/was
- "past plural" ("pastpl") - were
- "past" - were
- "past participle" ("ppart") - been
negate (bool): Negates the verb. This only supported
for a limited number of verbs: be, can, do, will, must, have, may,
need, dare, ought.
Returns:
str: The conjugated verb. If conjugation fails, the original verb is returned.
Examples:
The verb 'be':
- present: I am, you are, she is,
- present participle: being,
- past: I was, you were, he was,
- past participle: been,
- negated present: I am not, you aren't, it isn't.
"""
tense = verb_tenses_aliases.get(tense, tense)
verb = verb_infinitive(verb)
ind = verb_tenses_keys[tense]
if negate:
ind += len(verb_tenses_keys)
try:
return verb_tenses[verb][ind]
except IndexError:
# TODO implement simple algorithm here with +s for certain tenses?
return verb
def verb_present(verb, person="", negate=False):
"""
Inflects the verb in the present tense.
Args:
person (str or int): This can be 1, 2, 3, "1st", "2nd", "3rd", "plural" or "*".
negate (bool): Some verbs like be, have, must, can be negated.
Returns:
str: The present tense verb.
Example:
had -> have
"""
person = str(person).replace("pl", "*").strip("stndrgural")
mapping = {
"1": "1st singular present",
"2": "2nd singular present",
"3": "3rd singular present",
"*": "present plural",
}
if person in mapping and verb_conjugate(verb, mapping[person], negate) != "":
return verb_conjugate(verb, mapping[person], negate)
return verb_conjugate(verb, "infinitive", negate)
def verb_present_participle(verb):
"""
Inflects the verb in the present participle.
Args:
verb (str): The verb to inflect.
Returns:
str: The inflected verb.
Examples:
give -> giving, be -> being, swim -> swimming
"""
return verb_conjugate(verb, "present participle")
def verb_past(verb, person="", negate=False):
"""
Inflects the verb in the past tense.
Args:
verb (str): The verb to inflect.
person (str, optional): The person can be specified with 1, 2, 3,
"1st", "2nd", "3rd", "plural", "*".
negate (bool, optional): Some verbs like be, have, must, can be negated.
Returns:
str: The inflected verb.
Examples:
give -> gave, be -> was, swim -> swam
"""
person = str(person).replace("pl", "*").strip("stndrgural")
mapping = {
"1": "1st singular past",
"2": "2nd singular past",
"3": "3rd singular past",
"*": "past plural",
}
if person in mapping and verb_conjugate(verb, mapping[person], negate) != "":
return verb_conjugate(verb, mapping[person], negate)
return verb_conjugate(verb, "past", negate=negate)
def verb_past_participle(verb):
"""
Inflects the verb in the present participle.
Args:
verb (str): The verb to inflect.
Returns:
str: The inflected verb.
Examples:
give -> given, be -> been, swim -> swum
"""
return verb_conjugate(verb, "past participle")
def verb_all_tenses():
"""
Get all all possible verb tenses.
Returns:
list: A list if string names.
"""
return list(verb_tenses_keys.keys())
def verb_tense(verb):
"""
Returns a string from verb_tenses_keys representing the verb's tense.
Args:
verb (str): The verb to check the tense of.
Returns:
str: The tense.
Example:
given -> "past participle"
"""
infinitive = verb_infinitive(verb)
data = verb_tenses[infinitive]
for tense in verb_tenses_keys:
if data[verb_tenses_keys[tense]] == verb:
return tense
if data[verb_tenses_keys[tense] + len(verb_tenses_keys)] == verb:
return tense
def verb_is_tense(verb, tense):
"""
Checks whether the verb is in the given tense.
Args:
verb (str): The verb to check.
tense (str): The tense to check.
Return:
bool: If verb matches given tense.
"""
tense = verb_tenses_aliases.get(tense, tense)
return verb_tense(verb) == tense
def verb_is_present(verb, person="", negated=False):
"""
Checks whether the verb is in the present tense.
Args:
verb (str): The verb to check.
person (str): Check which person.
negated (bool): Check if verb was negated.
Returns:
bool: If verb was in present tense.
"""
person = str(person).replace("*", "plural")
tense = verb_tense(verb)
if tense is not None:
if "present" in tense and person in tense:
if not negated:
return True
elif "n't" in verb or " not" in verb:
return True
return False
def verb_is_present_participle(verb):
"""
Checks whether the verb is in present participle.
Args:
verb (str): The verb to check.
Returns:
bool: Result of check.
"""
tense = verb_tense(verb)
return tense == "present participle"
def verb_is_past(verb, person="", negated=False):
"""
Checks whether the verb is in the past tense.
Args:
verb (str): The verb to check.
person (str): The person to check.
negated (bool): Check if verb is negated.
Returns:
bool: Result of check.
"""
person = str(person).replace("*", "plural")
tense = verb_tense(verb)
if tense is not None:
if "past" in tense and person in tense:
if not negated:
return True
elif "n't" in verb or " not" in verb:
return True
return False
def verb_is_past_participle(verb):
"""
Checks whether the verb is in past participle.
Args:
verb (str): The verb to check.
Returns:
bool: The result of the check.
"""
tense = verb_tense(verb)
return tense == "past participle"
def verb_actor_stance_components(verb):
"""
Figure out actor stance components of a verb.
Args:
verb (str): The verb to analyze
Returns:
tuple: The 2nd person (you) and 3rd person forms of the verb,
in the same tense as the ingoing verb.
"""
tense = verb_tense(verb)
if "participle" in tense or "plural" in tense:
return (verb, verb)
if tense == "infinitive" or "present" in tense:
return (verb_present(verb, person="2"),
verb_present(verb, person="3"))
else:
return (verb_past(verb, person="2"),
verb_past(verb, person="3"))

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evennia/utils/verb_conjugation/tests.py Normal file
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"""
Unit tests for verb conjugation.
"""
from parameterized import parameterized
from django.test import TestCase
from . import conjugate
class TestVerbConjugate(TestCase):
"""
Test the conjugation.
"""
@parameterized.expand([
("have", "have"),
("swim", "swim"),
("give", "give"),
("given", "give"),
("am", "be"),
("doing", "do"),
("are", "be"),
])
def test_verb_infinitive(self, verb, expected):
"""
Test the infinite-getter.
"""
self.assertEqual(expected, conjugate.verb_infinitive(verb))
@parameterized.expand([
("inf", "have", "have"),
("inf", "swim", "swim"),
("inf", "give", "give"),
("inf", "given", "give"),
("inf", "am", "be"),
("inf", "doing", "do"),
("inf", "are", "be"),
("2sgpres", "am", "are"),
("3sgpres", "am", "is"),
])
def test_verb_conjugate(self, tense, verb, expected):
"""
Test conjugation for different tenses.
"""
self.assertEqual(expected, conjugate.verb_conjugate(verb, tense=tense))
@parameterized.expand([
("1st", "have", "have"),
("1st", "swim", "swim"),
("1st", "give", "give"),
("1st", "given", "give"),
("1st", "am", "am"),
("1st", "doing", "do"),
("1st", "are", "am"),
("2nd", "were", "are"),
("3rd", "am", "is"),
])
def test_verb_present(self, person, verb, expected):
"""
Test the present.
"""
self.assertEqual(expected, conjugate.verb_present(verb, person=person))
@parameterized.expand([
("have", "having"),
("swim", "swimming"),
("give", "giving"),
("given", "giving"),
("am", "being"),
("doing", "doing"),
("are", "being"),
])
def test_verb_present_participle(self, verb, expected):
"""
Test the present_participle
"""
self.assertEqual(expected, conjugate.verb_present_participle(verb))
@parameterized.expand([
("1st", "have", "had"),
("1st", "swim", "swam"),
("1st", "give", "gave"),
("1st", "given", "gave"),
("1st", "am", "was"),
("1st", "doing", "did"),
("1st", "are", "was"),
("2nd", "were", "were"),
])
def test_verb_past(self, person, verb, expected):
"""
Test the past getter.
"""
self.assertEqual(expected, conjugate.verb_past(verb, person=person))
@parameterized.expand([
("have", "had"),
("swim", "swum"),
("give", "given"),
("given", "given"),
("am", "been"),
("doing", "done"),
("are", "been"),
])
def test_verb_past_participle(self, verb, expected):
"""
Test the past participle.
"""
self.assertEqual(expected, conjugate.verb_past_participle(verb))
def test_verb_get_all_tenses(self):
"""
Test getting all tenses.
"""
self.assertEqual(list(conjugate.verb_tenses_keys.keys()), conjugate.verb_all_tenses())
@parameterized.expand([
("have", "infinitive"),
("swim", "infinitive"),
("give", "infinitive"),
("given", "past participle"),
("am", "1st singular present"),
("doing", "present participle"),
("are", "2nd singular present"),
])
def test_verb_tense(self, verb, expected):
"""
Test the tense retriever.
"""
self.assertEqual(expected, conjugate.verb_tense(verb))
@parameterized.expand([
("inf", "have", True),
("inf", "swim", True),
("inf", "give", True),
("inf", "given", False),
("inf", "am", False),
("inf", "doing", False),
("inf", "are", False),
])
def test_verb_is_tense(self, tense, verb, expected):
"""
Test the tense-checker
"""
self.assertEqual(expected, conjugate.verb_is_tense(verb, tense))
@parameterized.expand([
("1st", "have", False),
("1st", "swim", False),
("1st", "give", False),
("1st", "given", False),
("1st", "am", True),
("1st", "doing", False),
("1st", "are", False),
("1st", "had", False),
])
def test_verb_is_present(self, person, verb, expected):
"""
Test the tense-checker
"""
self.assertEqual(expected, conjugate.verb_is_present(verb, person=person))
@parameterized.expand([
("have", False),
("swim", False),
("give", False),
("given", False),
("am", False),
("doing", True),
("are", False),
])
def test_verb_is_present_participle(self, verb, expected):
"""
Test the tense-checker
"""
self.assertEqual(expected, conjugate.verb_is_present_participle(verb))
@parameterized.expand([
("1st", "have", False),
("1st", "swim", False),
("1st", "give", False),
("1st", "given", False),
("1st", "am", False),
("1st", "doing", False),
("1st", "are", False),
("2nd", "were", True),
])
def test_verb_is_past(self, person, verb, expected):
"""
Test the tense-checker
"""
self.assertEqual(expected, conjugate.verb_is_past(verb, person=person))
@parameterized.expand([
("have", False),
("swimming", False),
("give", False),
("given", True),
("am", False),
("doing", False),
("are", False),
("had", False),
])
def test_verb_is_past_participle(self, verb, expected):
"""
Test the tense-checker
"""
self.assertEqual(expected, conjugate.verb_is_past_participle(verb))
@parameterized.expand([
("have", ("have", "has")),
("swimming", ("swimming", "swimming")),
("give", ("give", "gives")),
("given", ("given", "given")),
("am", ("are", "is")),
("doing", ("doing", "doing")),
("are", ("are", "is")),
("had", ("had", "had")),
])
def test_verb_actor_stance_components(self, verb, expected):
"""
Test the tense-checker
"""
self.assertEqual(expected, conjugate.verb_actor_stance_components(verb))

8567
evennia/utils/verb_conjugation/verbs.txt Normal file
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4
requirements.txt
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@ -13,6 +13,10 @@ autobahn >= 17.9.3
lunr == 0.5.6
simpleeval <= 1.0
# conjugation library, py3 version
git+https://github.com/markrogersjr/nodebox_linguistics_extended.git
# try to resolve dependency issue in py3.7
attrs >= 19.2.0