45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
class Line:
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def __init__(self, byte_offset: int, byte_end: int, line: str):
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self._byte_offset = byte_offset
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self._byte_end = byte_end
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self._line = line
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def byte_offset(self) -> int:
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return self._byte_offset
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def byte_end(self) -> int:
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return self._byte_end
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def line(self) -> str:
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return self._line
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def length(self) -> int:
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return len(self._line)
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def char_index_to_byte(self, char_in_line: int) -> int:
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return len(self.prefix(char_in_line).encode("utf8"))
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def byte_index_to_char_index(self, byte_index: int) -> int:
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prefix_bytes = self._line.encode("utf8")[:byte_index]
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prefix_chars = prefix_bytes.decode("utf8", errors="ignore")
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return len(prefix_chars)
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def includes_byte(self, byte: int) -> bool:
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return self._byte_offset <= byte <= self._byte_end
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def intersects(self, start_byte: int, end_byte: int):
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result = start_byte < self._byte_end and end_byte > self._byte_offset
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#print("%d,%d in %d,%d" % (start_byte, end_byte, self._byte_offset, self._byte_end))
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return result
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def prefix(self, index: int) -> str:
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return self._line[0:index]
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def substr(self, offset: int, length: int) -> str:
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return self._line[offset:offset+length]
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def suffix(self, index: int) -> str:
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return self._line[index:]
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def __str__(self):
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return "%s (%d->%d)" % (self._line, self._byte_offset, self._byte_end) |