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Kovid Goyal
52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
# vim:fileencoding=utf-8
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# License: BSD Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
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# globals: ρσ_str, ρσ_last_exception
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def _get_internal_traceback(err):
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if isinstance(err, Exception) and err.stack:
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lines = ρσ_str.splitlines(err.stack)
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for i, line in enumerate(lines):
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line = ρσ_str.strip(line)
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# These two conditions work on desktop Chrome and Firefox to identify the correct
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# line in the traceback.
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if line.startsWith('at new ' + err.name) or line.startsWith(err.name + '@'):
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return err.__repr__() + '\n' + lines.slice(i+1).join('\n')
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return err and err.stack
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def format_exception(exc, limit):
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if not isinstance(exc, Error):
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if exc and exc.toString:
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return [exc.toString()]
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return []
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tb = _get_internal_traceback(exc)
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if tb:
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lines = ρσ_str.splitlines(tb)
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e = lines[0]
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lines = [l for l in lines[1:]]
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if limit:
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lines = lines[:limit+1] if limit > 0 else lines[limit:]
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lines.reverse()
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lines.push(e)
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lines.insert(0, 'Traceback (most recent call last):')
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return [l+'\n' for l in lines]
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return [exc.toString()]
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def format_exc(limit):
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return format_exception(ρσ_last_exception, limit).join('')
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def print_exc(limit):
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print(format_exc(limit))
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def format_stack(limit):
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stack = Error().stack
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if not stack:
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return []
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lines = str.splitlines(stack)[2:]
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lines.reverse()
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if limit:
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lines = lines[:limit+1] if limit > 0 else lines[limit:]
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return [l + '\n' for l in lines]
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def print_stack(limit):
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print(format_stack(limit).join(''))
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