41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
import re
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from iottb import definitions
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import logging
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logger = logging.getLogger(__name__)
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def normalize_string(s, chars_to_replace=None, replacement=None, allow_unicode=False):
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pass
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def make_canonical_name(name):
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"""
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Normalize the device name to a canonical form:
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- Replace the first two occurrences of spaces and transform characters with dashes.
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- Remove any remaining spaces and non-ASCII characters.
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- Convert to lowercase.
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"""
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aliases = [name]
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logger.info(f'Normalizing name {name}')
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# We first normalize
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chars_to_replace = definitions.REPLACEMENT_SET_CANONICAL_DEVICE_NAMES
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pattern = re.compile('|'.join(re.escape(char) for char in chars_to_replace))
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norm_name = pattern.sub('-', name)
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norm_name = re.sub(r'[^\x00-\x7F]+', '', norm_name) # removes non ascii chars
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aliases.append(norm_name)
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# Lower case
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norm_name = norm_name.lower()
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aliases.append(norm_name)
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# canonical name is only first two parts of resulting string
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parts = norm_name.split('-')
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canonical_name = canonical_name = '-'.join(parts[:2])
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aliases.append(canonical_name)
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logger.debug(f'Canonical name: {canonical_name}')
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logger.debug(f'Aliases: {aliases}')
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return canonical_name, list(set(aliases))
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