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from . import asciidoc
class AsciiDocError(Exception):
pass
class Options(object):
"""
Stores asciidoc(1) command options.
"""
def __init__(self, values=[]):
self.values = values[:]
def __call__(self, name, value=None):
"""Shortcut for append method."""
self.append(name, value)
def append(self, name, value=None):
if type(value) in (int, float):
value = str(value)
self.values.append((name, value))
class AsciiDocAPI(object):
"""
AsciiDoc API class.
"""
def __init__(self, asciidoc_py=None):
"""
Locate and import asciidoc.py.
Initialize instance attributes.
"""
self.options = Options()
self.attributes = {}
self.messages = []
def execute(self, infile, outfile=None, backend=None):
"""
Compile infile to outfile using backend format.
infile can outfile can be file path strings or file like objects.
"""
self.messages = []
opts = Options(self.options.values)
if outfile is not None:
opts('--out-file', outfile)
if backend is not None:
opts('--backend', backend)
for k, v in self.attributes.items():
if v == '' or k[-1] in '!@':
s = k
elif v is None: # A None value undefines the attribute.
s = k + '!'
else:
s = '%s=%s' % (k, v)
opts('--attribute', s)
args = [infile]
try:
try:
asciidoc.execute(self.cmd, opts.values, args)
finally:
self.messages = self.asciidoc.messages[:]
except SystemExit as e:
if e.code:
raise AsciiDocError(self.messages[-1])
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