Python –调试和可视化正则表达式

如何解决Python –调试和可视化正则表达式

我正在Python中使用regex module进行模糊搜索，例如：

expreg = regex.compile(f'(?e)(Fibonacci){{i<=1,s<=1,d<=1}}')
result = regex.search(expreg,'FMbo nacc')

我已经编写了以下代码片段，以了解方法match.fuzzy_counts和match.fuzzy_changes输出的内容：

def visualize(match_object):

    if match_object is None:
        return None

    start,end = match_object.span(0)
    match_text = match_object[0]
    length_text = len(match_text)
    substitutions = [i - start for i in match_object.fuzzy_changes[0]]
    insertions = [i - start for i in match_object.fuzzy_changes[1]]
    deletions = [i - start for i in match_object.fuzzy_changes[2]]
    print (match_object)
    print (f'fuzzy_changes : {substitutions},{insertions},{deletions}')

    # Examine first substitutions and insertions
    visualizer = ''
    for i in range(length_text):
        if i in substitutions:
            visualizer += f'[{match_text[i]}]'
        elif i in insertions:
            visualizer += rf'{{{match_text[i]}}}'
        else:
            visualizer += f'{match_text[i]}'

    # Then deletions
    total_transformations = 0
    for i,deletion in enumerate(deletions):
        previous = 0 if i == 0 else deletions[i - 1]
        intermediate_substitutions = len(
            [w for w in substitutions if previous <= w and w < deletion])
        intermediate_insertions = len(
            [y for y in insertions if previous <= y and y < deletion])
        total_transformations += intermediate_substitutions + intermediate_insertions
        visualizer = f'{visualizer[:deletion + i + (total_transformations*2):]}<>{visualizer[deletion + i + (total_transformations*2)::]}'

    print (f'regex : {result.re}\nvisualizer : {visualizer}')

应用于上面定义的匹配对象结果时，它将打印以下字符串：F [M] bo {} nacc （其中括号表示替换，大括号插入和删除）。

现在，我想找到一种方法，以防万一我寻找替代品的清单，例如说f'（？e）（Fibonacci | Pound | Fulano）{{i

我已经阅读了许多与同一主题有关的SO问题，但没有一个能给出令人满意的答案。有什么想法吗？

感谢您的帮助！