Package errorutil
Package errorutil helps make better error messages.
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func HighlightBytePosition(f io.Reader, pos int64) (line, col int, highlight string)
HighlightBytePosition takes a reader and the location in bytes of a parse
error (for instance, from json.SyntaxError.Offset) and returns the line, column,
and pretty-printed context around the error with an arrow indicating the exact
position of the syntax error.
ActiveGo 1.8