deletion of lines

[arthurmcbeth]

Does winmerge delete lines when comparing?
I compared two files and expected the program to alert me to differences.
I'm hoping it doesn't take action with out my knowledge.
Also is there a difference between left side and right side. Is the left treated differently then the right?

[sdottaka]

Does WinMerge delete lines when comparing?

Unless you are using a plugin, WinMerge should not delete any lines during comparison. However, if menu items like View → Diff Context → 0 Lines are selected, it may hide matching lines on both sides — this is just for display purposes and does not modify the files.

Also is there a difference between the left side and the right side? Is the left treated differently than the right?

I'm not sure if I fully understand the intent of your question, but since the diff algorithm is asymmetric, the way differences are shown may change depending on which file is on the left and which is on the right. So yes, swapping left and right can sometimes result in a different display of the differences.

[arthurmcbeth]

Thank you Takasi

…

On Sun, Apr 20, 2025 at 12:04 AM Takashi Sawanaka ***@***.***> wrote: Does WinMerge delete lines when comparing? Unless you are using a plugin, WinMerge should not delete any lines during comparison. However, if menu items like View → Diff Context → 0 Lines are selected, it may hide matching lines on both sides — this is just for display purposes and does not modify the files. Also is there a difference between the left side and the right side? Is the left treated differently than the right? I'm not sure if I fully understand the intent of your question, but since the diff algorithm is asymmetric, the way differences are shown may change depending on which file is on the left and which is on the right. So yes, swapping left and right can sometimes result in a different display of the differences. — Reply to this email directly, view it on GitHub <#2741 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BRSKLB37R5KGILNCOMDXAN322MMGBAVCNFSM6AAAAAB3OYDAN2VHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTEOBYHAZDAMQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>