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Add a public API to generate a single instance #98

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Merged
anthrotype merged 1 commit into from
Nov 4, 2017
Merged

Add a public API to generate a single instance #98

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18 changes: 17 additions & 1 deletion Lib/mutatorMath/ufo/document.py
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Original file line number Diff line number Diff line change
Expand Up @@ -604,6 +604,23 @@ def readLocationElement(self, locationElement):
loc[dimName] = xValue
return loc

def readInstance(self, key, makeGlyphs=True, makeKerning=True, makeInfo=True):
""" Read a single instance element.

key: an (attribute, value) tuple used to find the requested instance.

::

<instance familyname="SuperFamily" filename="OutputNameInstance1.ufo" location="location-token-aaa" stylename="Regular">

"""
attrib, value = key
for instanceElement in self.root.findall('.instances/instance'):
if instanceElement.attrib.get(attrib) == value:
self._readSingleInstanceElement(instanceElement, makeGlyphs=makeGlyphs, makeKerning=makeKerning, makeInfo=makeInfo)
return
raise MutatorError("No instance found with key: (%s, %s)." % key)

def readInstances(self, makeGlyphs=True, makeKerning=True, makeInfo=True):
""" Read all instance elements.

Expand All @@ -612,7 +629,6 @@ def readInstances(self, makeGlyphs=True, makeKerning=True, makeInfo=True):
<instance familyname="SuperFamily" filename="OutputNameInstance1.ufo" location="location-token-aaa" stylename="Regular">

"""
instanceElements = self.root.findall('.instances/instance')
for instanceElement in self.root.findall('.instances/instance'):
self._readSingleInstanceElement(instanceElement, makeGlyphs=makeGlyphs, makeKerning=makeKerning, makeInfo=makeInfo)

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