Inline truncate by character number

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from django import template

register = template.Library()

@register.filter("inline_truncate")
def inline_truncate(value, size):
    """Truncates a string to the given size placing the ellipsis at the middle of the string"""
    if len(value) > size and size > 3:
        start = (size - 3) / 2
        end = (size - 3) - start
        return value[0:start] + '...' + value[-end:]
    else:
        return value[0:size]

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