On 11/11/2019 23:29, Chris Johns wrote:
On 11/11/19 8:45 pm, Sebastian Huber wrote:
On 08/11/2019 23:48, Chris Johns wrote:[...]
3. Is the ${} expansion something you have implemented? It is a nice feature.
[...]
With standard Python the substitution itself is a one liner:
def substitute(self, ctx, value):
if isinstance(value, str):
try:
return Template(value).substitute(ctx.env)
except Exception as e:
ctx.fatal(
"In item '{}' substitution in '{}' failed: {}".format(
self.uid, value, e
)
)
return value
Does this support nested defines?
You mean something like this:
Python 2.7.14 (default, Oct 12 2017, 15:50:02) [GCC] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import string
>>> d={"a":"x","b":"y","c":"${a}${b}"}
>>> t=string.Template("${c}")
>>> t.substitute(d)
'${a}${b}'
>>>
?
Apparently, the Template.substitute() doesn't work recursively.
The variables used for the substitution are the configuration set
environment variables. I intentionally didn't add a recursive
substitution since you should specify the variable definitions in a
proper order.
The RSB and rtemstoolkit macros recursively expand as it was a something I found
needed and useful ...
https://git.rtems.org/rtems-tools/tree/rtemstoolkit/macros.py#n471
I think we should keep it simple in the build system right now. If there
is a real need, then we can have a look at this.
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
PGP : Public key available on request.
Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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