是否有可能在记事本++中循环线？

Question

I have a txt file with patterned content:

Line 1 id=1234
Line 2 id=0001
Line 3 id=4321
Line 4 id=9281
Line 5 id=6631
Line 6 id=1234
Line 7 id=1234
Line 8 id=4321
Line 9 id=7772
Line 10 id=0001
... up to Line 5000 id=6631

I want to replace all repetitive contents (ie. Line 1, 6, 7) to only for the first occur. of content (Line 1 id=1234; 6, 7 removed). In other words, content id of a line must occur once. Is that possible though regular expressions?

Answer 1

Assuming that a line would literally read Line 1 id=1234 :

• Enter (Line [0-9]+ id=)([0-9]+)(.*?)(Line [0-9]+ id=)\\2\\n into the find box, and \\1\\2\\3 into the replace with box.
• Make sure that Regular Expression is selected and . matches newline . matches newline is checked.
• Press Replace All , until all duplicates are removed.
• You will see Replace All: 0 occurrence was replaced. when it's complete.

Assuming instead that the lines would read only id=1234 :

• Enter (id=[0-9]+)(.*?)\\1\\n into the find box, and \\1\\2 into the replace with box.
• Make sure that Regular Expression is selected and . matches newline . matches newline is checked.
• Press Replace All , until all duplicates are removed.
• You will see Replace All: 0 occurrence was replaced. when it's complete.