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39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
"""The substitute plugin module.
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Uses user-specified substitution rules to canonicalize names for path formats.
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"""
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import re
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from beets.plugins import BeetsPlugin
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class Substitute(BeetsPlugin):
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"""The substitute plugin class.
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Create a template field function that substitute the given field with the
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given substitution rules. ``rules`` must be a list of (pattern,
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replacement) pairs.
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"""
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def tmpl_substitute(self, text):
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"""Do the actual replacing."""
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if text:
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for pattern, replacement in self.substitute_rules:
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text = pattern.sub(replacement, text)
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return text
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return ""
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def __init__(self):
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"""Initialize the substitute plugin.
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Get the configuration, register template function and create list of
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substitute rules.
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"""
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super().__init__()
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self.template_funcs["substitute"] = self.tmpl_substitute
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self.substitute_rules = [
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(re.compile(key, flags=re.IGNORECASE), value)
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for key, value in self.config.flatten().items()
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]
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