epics-base compliant macro tools.
Do you want epics-base compliant macro expansion, with all of its idiosyncracies?
No? I didn't think so. This is a really boring project and you probably don't need it.
This will be the future of the macro and IOC shell splitting tools in whatrecord,
removing its reliance on Cython and epicscorelibs.
macros_from_string
from epicsmacrolib import macros_from_string
macros_from_string("A=5, B=$(A=3)")
# -> {'A': '5', 'B': '$(A=3)'}MacroContext
from epicsmacrolib import MacroContext
ctx = MacroContext(use_environment=True)
ctx.define(TEST="A")
print(ctx.expand("TEST=$(TEST) SHELL=$(SHELL)"))
# TEST=A SHELL=/bin/bash
ctx = MacroContext(use_environment=False)
ctx.define_from_string("A=5,B=6")
ctx.define(C="7")
print(ctx.expand("$(A) $(B) ${C} ${D=5} ${E}"))
# -> 5 6 7 5 $(E)
ctx = MacroContext(use_environment=False, show_warnings=True)
ctx.define_from_string("A=5,B=6")
ctx.define(C="7")
print(ctx.expand("$(A) $(B) ${C} ${D=5} ${E}"))
# -> 5 6 7 5 $(E,undefined)
ctx.define_from_string("A=5,B=$(B)")
print(ctx.expand("$(A) $(B)"))
# -> 5 $(B,recursive)
with ctx.scoped(A="10", B="0"):
print(ctx.expand("$(A)"))
# -> 10
with ctx.scoped(A="0"):
print(ctx.expand("$(A)"))
# -> 0
print(ctx.expand("$(A)"))
# -> 10split_iocsh_line (like shlex.split)
from epicsmacrolib import split_iocsh_line
split_iocsh_line("dbLoadRecords > output_filename")
# -> IocshSplit(
# argv=["dbLoadRecords"],
# redirects={1: IocshRedirect(fileno=1, name="output_filename", mode="w")},
# error=None,
# )The Python portions of this code is under a BSD-3 clause license
(LicenseRef-BSD-3-Clause-SLAC, see LICENSE).
Portions of epics-base have been vendored in src under its original license
(see src/LICENSE).
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