Mapytex/mapytex/calculus/random/core/str2.py

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from ...core.operator import is_operator
from functools import partial
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from ...core.str2 import (
concurent_broadcast,
lookforNumbers,
pparser,
missing_times,
lookfor,
)
from ...core.coroutine import STOOOP
from ...core.MO import moify_cor
from .leaf import look_for_rdleaf
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def rdstr2(sink):
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"""Return a pipeline which parse random expression and with sink as endpoint
:example:
>>> from ...core.str2 import list_sink
>>> rdstr2list = rdstr2(list_sink)
>>> rdstr2list("{a}+{a*b}-2")
[<RdLeaf a>, '+', <RdLeaf a*b>, '+', <MOnumber -2>]
>>> rdstr2list("{a}({b}x+{c})")
[<RdLeaf a>, '*', [<RdLeaf b>, '*', <MOstr x>, '+', <RdLeaf c>]]
"""
lfop = lookfor(is_operator)
operator_corout = partial(concurent_broadcast, lookfors=[lfop])
def pipeline(expression):
str2_corout = look_for_rdleaf(
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lookforNumbers(operator_corout(missing_times(moify_cor(pparser(sink)))))
)
for i in expression.replace(" ", ""):
str2_corout.send(i)
a = str2_corout.throw(STOOOP)
return a
return pipeline