java - Regex is getting other words -

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I am using regex in java, I want to get the upper case of only one string.

Example: 

  1.- M / PS (Obstatic) - Group 1: M group 2: PS 2.- M / PS * - Obstetrico - Group 1: M Group 2: PS3- H / PS Adulo - Group 1: M Group 2: PS

Now when I use: 

  regex : ([AZ] +)

For the first case: group1: m group2: PS group3: O < / P>

So I say that I'm going to leave this method: 

  regex: ([AZ] + [^ az])

  • PS *

    • I will use Test: Input H / M * H (Syquitria) PS * M / PS Infantil H / M / PS M / PS (Obstetrico)

    OPT H, MH PS M

    If you enter ([AZ] +) [^ Az] You will find for each string:

    Group 1: M

    Then after the next search () you will meet again

    Group 1: PS

    Explanation; In any group, the regex is captured in one of the z axis in any order, which is followed by something that is not for z. Thus, it will first occupy M in the group, then start searching again and capture the PS in the first group.

    Especially for your 3 string, you can use ([AZ]) * / * ([AZ] +) Group 2: PS

    Explanation: regex a Z from a single letter which is a place 0 or more often, Followed by a slash (/), followed by a location 0 or more often, after captured one sequence of Z characters. In this way it will move the M group to the first group, proceed through the possible location and slash, and capture the PS in the second group.


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