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ENH: Python as a templating language(PyAS) #17952

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ENH: Python as a templating language(PyAS) #17952

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3 changes: 3 additions & 0 deletions doc/DISTUTILS.rst.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -474,6 +474,9 @@ to produce ``.h`` files).

.. _conv_template.py: https://github.com/numpy/numpy/blob/master/numpy/distutils/conv_template.py

.. automodule:: numpy.distutils.pyas_template
:members:

Useful functions in ``numpy.distutils.misc_util``
-------------------------------------------------

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6 changes: 4 additions & 2 deletions doc/source/conf.py
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Expand Up @@ -445,14 +445,16 @@ def linkcode_resolve(domain, info):

from pygments.lexers import CLexer
from pygments.lexer import inherit, bygroups
from pygments.token import Comment
from pygments.token import Comment, Keyword

class NumPyLexer(CLexer):
name = 'NUMPYLEXER'

tokens = {
'statements': [
(r'@[a-zA-Z_]*@', Comment.Preproc, 'macro'),
(r'\$[A-Z][A-Za-z]*', Keyword.Constant),
(r'{{.*}}', Keyword.Constant),
inherit,
],
]
}
34 changes: 25 additions & 9 deletions numpy/distutils/command/build_src.py
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Expand Up @@ -21,6 +21,7 @@
)
from numpy.distutils.from_template import process_file as process_f_file
from numpy.distutils.conv_template import process_file as process_c_file
from numpy.distutils.pyas_template import process_file as process_pyas_file

def subst_vars(target, source, d):
"""Substitute any occurrence of @foo@ by d['foo'] from source file into
Expand Down Expand Up @@ -405,31 +406,46 @@ def filter_files(self, sources, exts = []):
return new_sources, files

def template_sources(self, sources, extension):
def process_conv(source, target_file, base):
if _f_pyf_ext_match(base):
log.info("from_template:> " + target_file)
outstr = process_f_file(source)
else:
log.info("conv_template:> " + target_file)
outstr = process_c_file(source)
with open(target_file, 'w') as fid:
fid.write(outstr)

def process_pyas(source, target_file, base):
log.info("pyas_template:> " + target_file)
process_pyas_file(source, target_file)

tpl_handler = {
'.src' : process_conv,
'.pyas' : process_pyas
}
new_sources = []
if is_sequence(extension):
depends = extension[1].get('depends')
include_dirs = extension[1].get('include_dirs')
else:
depends = extension.depends
include_dirs = extension.include_dirs

for source in sources:
(base, ext) = os.path.splitext(source)
if ext == '.src': # Template file
tph = tpl_handler.get(ext)
if tph: # Template file
if self.inplace:
target_dir = os.path.dirname(base)
else:
target_dir = appendpath(self.build_src, os.path.dirname(base))
self.mkpath(target_dir)

target_file = os.path.join(target_dir, os.path.basename(base))
if (self.force or newer_group([source] + depends, target_file)):
if _f_pyf_ext_match(base):
log.info("from_template:> %s" % (target_file))
outstr = process_f_file(source)
else:
log.info("conv_template:> %s" % (target_file))
outstr = process_c_file(source)
with open(target_file, 'w') as fid:
fid.write(outstr)
tph(source, target_file, base)

if _header_ext_match(target_file):
d = os.path.dirname(target_file)
if d not in include_dirs:
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