institutions_tags.py 文件源码

def diff_text(a, b):
    s = SequenceMatcher(None, a, b)
    opcode = {'replace': lambda i1, i2, j1, j2: "<strike>%s</strike><strong>%s</strong>" % (a[i1:i2], b[j1:j2]),
              'delete': lambda i1, i2, j1, j2: "<strike>%s</strike>" % (a[i1:i2], ),
              'insert': lambda i1, i2, j1, j2: "<strong>%s</strong>" % (b[j1:j2], ),
              'equal': lambda i1, i2, j1, j2: a[i1:i2]}
    return safe("".join(opcode[tag](*args) for tag, *args in s.get_opcodes()))