fypp.py 文件源码

def _split_line(line, maxlen, prefix, suffix, fold_position_finder):
        # length of continuation lines with 1 or two continuation chars.
        maxlen1 = maxlen - len(prefix)
        maxlen2 = maxlen1 - len(suffix)
        start = 0
        end = fold_position_finder(line, start, maxlen - len(suffix))
        result = [line[start:end] + suffix]
        while end < len(line) - maxlen1:
            start = end
            end = fold_position_finder(line, start, start + maxlen2)
            result.append(prefix + line[start:end] + suffix)
        result.append(prefix + line[end:])
        return result