Jan Petykiewicz
c7f3e7ee52
Since there isn't GDS/OASIS level support for dose, this can be mostly handled by using arbitrary layers/dtypes directly. Dose scaling isn't handled as nicely that way, but it corresponds more directly to what gets written to file.
61 lines
1.4 KiB
Python
61 lines
1.4 KiB
Python
"""
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Helper functions for file reading and writing
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"""
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from typing import Set, Tuple, List, Iterable, Mapping
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import re
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import copy
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import pathlib
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import logging
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from .. import Pattern, PatternError
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from ..library import Library, WrapROLibrary
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from ..shapes import Polygon, Path
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logger = logging.getLogger(__name__)
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def mangle_name(name: str) -> str:
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"""
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Sanitize a name.
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Args:
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name: Name we want to mangle.
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Returns:
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Mangled name.
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"""
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expression = re.compile(r'[^A-Za-z0-9_\?\$]')
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sanitized_name = expression.sub('_', name)
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return sanitized_name
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def clean_pattern_vertices(pat: Pattern) -> Pattern:
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"""
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Given a pattern, remove any redundant vertices in its polygons and paths.
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The cleaning process completely removes any polygons with zero area or <3 vertices.
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Args:
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pat: Pattern to clean
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Returns:
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pat
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"""
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remove_inds = []
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for ii, shape in enumerate(pat.shapes):
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if not isinstance(shape, (Polygon, Path)):
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continue
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try:
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shape.clean_vertices()
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except PatternError:
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remove_inds.append(ii)
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for ii in sorted(remove_inds, reverse=True):
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del pat.shapes[ii]
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return pat
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def is_gzipped(path: pathlib.Path) -> bool:
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with open(path, 'rb') as stream:
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magic_bytes = stream.read(2)
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return magic_bytes == b'\x1f\x8b'
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