Python 从字符串中提取内容的正则表达式，将其与模式 'XX：XX am or pm' 相关联

我在创建一个正则表达式来提取与时间XX:XX am or pm相关的短语时遇到了问题

import re

hh, mm, am_pm = "", "", "" #each hour group element in str format
times_output = [] #list that must accumulate all time in "XX:XX am or pm" format, 'X' is a int value

伪正则表达式模式(对于这种类型的示例输入字符串)

"sense" \s* entre las \s* "XX:XX am or pm" \s* y las \s* "XX:XX am or pm"

"XX:XX am or pm" ---> "sense"
"XX:XX am or pm" ---> "sense"

"sense" a las "XX:XX am or pm"

"XX:XX am or pm" ---> "sense"

"sense" a las "XX:XX am or pm", a las "XX:XX am or pm" o a las "XX:XX am or pm"

"XX:XX am or pm" ---> "sense"
"XX:XX am or pm" ---> "sense"
"XX:XX am or pm" ---> "sense"

(...|.|,|;) \s* "sense1" \s* (a las|de las|) \s* "XX:XX am or pm" \s* "sense2"

"XX:XX am or pm" ---> "sense1" + "sense2"
"22:00 pm"       ---> "ya que a las" + "empieza el show"

在这种情况下，"ya que"和"a las"将被移除

Regex pattern to extract times from the input sentence no matter what is before or after the times pattern个

Example 1:个

input_text = "puede ser peligroso salir entre las 18:00 pm y las 20:00 pm hs, por ello yo pienso que seria mejor salir a las 21:00 pm, a las 21:15 pm o a las 21:30 pm ya que a las 22:00 pm empezaria el show"

#sense_pattern = r"(?P()\s.+?)" #THE REGEX THAT I NEED
civil_time_pattern = r'(\d{1,2})[\s|:]*(\d{0,2})\s*(am|pm)?'

#civil_time_unit_list = re.search(civil_time_pattern, input_text_all_in_minus)
civil_time_unit_list = re.findall(civil_time_pattern, input_text_all_in_minus)

在这种情况下，这是更重要的only for the time regex

try:
    hh = civil_time_unit_list[0][0]
    if (hh == ""): hh = "00"
except IndexError: hh = "00"
try:
    mm = civil_time_unit_list[0][1]
    if (mm == ""): mm = "00"
except IndexError: mm = "00"
try:
    am_pm = civil_time_unit_list[0][2]
    if (am_pm == ""): am_pm = "am"
except IndexError: am_pm = "am"

time_output = (hh + ":" + mm + " " + am_pm).strip()

#remove unnecessary connectors in the <<sense>>
sense = sense.replace("entre las", "")
sense = sense.replace("y las", "")
sense = sense.replace("entre las", "")
sense = sense.replace("a las", "")
sense = sense.replace("ya que", "")

然后，只需创建带有时间表名称的文件，并在其中写入相关的含义

time_output_file = time_output + ".txt"
with open(time_output_file, 'w') as f:
    f.write(sense)

最后，文件应该如下所示(对于本例)……

18:00 pm.txt ----> 'puede ser peligroso salir'
20:00 pm.txt ----> 'puede ser peligroso salir'
21:00 pm.txt ----> 'por ello yo pienso que seria mejor salir'
21:15 pm.txt ----> 'por ello yo pienso que seria mejor salir'
21:30 pm.txt ----> 'por ello yo pienso que seria mejor salir'
22:00 pm.txt ----> 'empezaria el show'