python - How can i generate text using patterns with multiple nesting? -


i got pattern such as:

{in {beautiful|wonderful} world i'm {the best one|looser}|not today, {man|guy}}

and want random results:

in wonderful world i'm looser

in beautiful world i'm best one

not today, guy

in wonderful world i'm best one

...

and on. i've got working code one-level nesting pattern:

import random import re  def replace_random(review):     random_tags = re.findall(r"\{(.*?)\}", review, re.dotall)     random_tag in random_tags:         choice = random.choice(random_tag.split('|'))         review = review.replace('{'+random_tag+'}', choice)     return review  print(replace_random('in {beautiful|wonderful} world i\'m {the best one|looser}'))

but if have multiple nesting(as above), doesn't work. how make recursively?

replace inner tags don't contain curly brackets, , if there's tags left, repeat process:

import random import re  def replace_random(review):     random_tags = re.findall(r"\{([^{}]*?)\}", review, re.dotall)     random_tag in random_tags:         choice = random.choice(random_tag.split('|'))         review = review.replace('{' + random_tag + '}', choice)     if '{' in review or '}' in review:         return replace_random(review)     return review  print(replace_random("{in {beautiful|wonderful} world i'm {the best one|looser}|not today, {man|guy}}"))

like current code, have problems if want have literal curly brackets in output. it's not efficient way work thrown away. fine.


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