php – 解析skype日志

(?i)[(?P<time_stamp>[^[]+)]s*[*]s*[a-z,]+(?P<duration>(?:d{2}:?){2,3})s*[*]

说明

"
(?i)               # Match the remainder of the regex with the options: case insensitive (i)
[                 # Match the character “[” literally
(?P<time_stamp>    # Match the regular expression below and capture its match into backreference with name “time_stamp”
   [^[]               # Match any character that is NOT a “[”
      +                  # Between one and unlimited times,as many times as possible,giving back as needed (greedy)
)
]                 # Match the character “]” literally
s                 # Match a single character that is a “whitespace character” (spaces,tabs,and line breaks)
   *                  # Between zero and unlimited times,giving back as needed (greedy)
[*]                # Match the character “*”
s                 # Match a single character that is a “whitespace character” (spaces,giving back as needed (greedy)
[a-z,]            # Match a single character present in the list below
                      # A character in the range between “a” and “z”
                      # One of the characters “,”
   +                  # Between one and unlimited times,giving back as needed (greedy)
(?P<duration>      # Match the regular expression below and capture its match into backreference with name “duration”
   (?:                # Match the regular expression below
      d                 # Match a single digit 0..9
         {2}                # Exactly 2 times
      :                  # Match the character “:” literally
         ?                  # Between zero and one times,giving back as needed (greedy)
   ){2,3}             # Between 2 and 3 times,giving back as needed (greedy)
)
s                 # Match a single character that is a “whitespace character” (spaces,giving back as needed (greedy)
[*]                # Match the character “*”
"