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@ -71,9 +71,6 @@ def write(
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by it are written.
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top_name: Name of the top-level pattern to write.
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stream: Stream object to write to.
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disambiguate_func: Function which takes a list of patterns and alters them
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to make their names valid and unique. Default is `disambiguate_pattern_names`.
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WARNING: No additional error checking is performed on the results.
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"""
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#TODO consider supporting DXF arcs?
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if not isinstance(library, Library):
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@ -370,41 +367,3 @@ def _mlayer2dxf(layer: layer_t) -> str:
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if isinstance(layer, tuple):
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return f'{layer[0]}.{layer[1]}'
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raise PatternError(f'Unknown layer type: {layer} ({type(layer)})')
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def disambiguate_pattern_names(
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names: Iterable[str],
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max_name_length: int = 32,
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suffix_length: int = 6,
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) -> List[str]:
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"""
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Args:
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names: List of pattern names to disambiguate
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max_name_length: Names longer than this will be truncated
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suffix_length: Names which get truncated are truncated by this many extra characters. This is to
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leave room for a suffix if one is necessary.
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"""
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new_names = []
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for name in names:
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sanitized_name = re.compile(r'[^A-Za-z0-9_\?\$]').sub('_', name)
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i = 0
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suffixed_name = sanitized_name
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while suffixed_name in new_names or suffixed_name == '':
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suffix = base64.b64encode(struct.pack('>Q', i), b'$?').decode('ASCII')
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suffixed_name = sanitized_name + '$' + suffix[:-1].lstrip('A')
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i += 1
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if sanitized_name == '':
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logger.warning(f'Empty pattern name saved as "{suffixed_name}"')
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if len(suffixed_name) == 0:
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# Should never happen since zero-length names are replaced
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raise PatternError(f'Zero-length name after sanitize,\n originally "{name}"')
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if len(suffixed_name) > max_name_length:
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raise PatternError(f'Pattern name "{suffixed_name!r}" length > {max_name_length} after encode,\n'
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+ f' originally "{name}"')
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new_names.append(suffixed_name)
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return new_names
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jan