93 lines
2.6 KiB
Python
93 lines
2.6 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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"""
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This file contains compatibility code to stay compatible with
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as many python versions as possible.
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"""
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import sys
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import vim # pylint:disable=import-error
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def _vim_dec(string):
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"""Decode 'string' using &encoding."""
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try:
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return string.decode(vim.eval("&encoding"))
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except UnicodeDecodeError:
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# At least we tried. There might be some problems down the road now
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return string
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def _vim_enc(string):
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"""Encode 'string' using &encoding."""
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try:
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return string.encode(vim.eval("&encoding"))
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except UnicodeEncodeError:
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return string
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if sys.version_info >= (3, 0):
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def open_ascii_file(filename, mode):
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"""Opens a file in "r" mode."""
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return open(filename, mode, encoding="utf-8")
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def col2byte(line, col):
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"""
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Convert a valid column index into a byte index inside
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of vims buffer.
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"""
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pre_chars = vim.current.buffer[line-1][:col]
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return len(_vim_enc(pre_chars))
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def byte2col(line, nbyte):
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"""
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Convert a column into a byteidx suitable for a mark or cursor
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position inside of vim
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"""
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line = vim.current.buffer[line-1]
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raw_bytes = _vim_enc(line)[:nbyte]
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return len(_vim_dec(raw_bytes))
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def as_unicode(string):
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"""Return 'string' as unicode instance."""
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if isinstance(string, bytes):
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return _vim_dec(string)
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return str(string)
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def as_vimencoding(string):
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"""Return 'string' as Vim internal encoding."""
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return string
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else:
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import warnings
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warnings.filterwarnings("ignore", category=DeprecationWarning)
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def open_ascii_file(filename, mode):
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"""Opens a file in "r" mode."""
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return open(filename, mode)
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def col2byte(line, col):
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"""
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Convert a valid column index into a byte index inside
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of vims buffer.
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"""
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pre_chars = _vim_dec(vim.current.buffer[line-1])[:col]
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return len(_vim_enc(pre_chars))
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def byte2col(line, nbyte):
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"""
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Convert a column into a byteidx suitable for a mark or cursor
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position inside of vim
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"""
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line = vim.current.buffer[line-1]
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if nbyte >= len(line): # This is beyond end of line
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return nbyte
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return len(_vim_dec(line[:nbyte]))
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def as_unicode(string):
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"""Return 'string' as unicode instance."""
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if isinstance(string, str):
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return _vim_dec(string)
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return unicode(string)
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def as_vimencoding(string):
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"""Return 'string' as unicode instance."""
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return _vim_enc(string)
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