How can I combine multiple Regex strings into one?

Question

My code has five different Regex strings:

            Regex regex = new Regex(@"(\n  )?\[see=[^\]]*\]]");

            phraseSources
                .ToList()
                .ForEach(item => item.JmdictMeaning = regex.Replace(item.JmdictMeaning, ""));

            regex = new Regex(@"(\n  )?\[note=[^\]]*\]");

            phraseSources
                .ToList()
                .ForEach(item => item.JmdictMeaning = regex.Replace(item.JmdictMeaning, ""));

            regex = new Regex(@"(\n  )?\[restr=[^\]]*\]");

            phraseSources
                .ToList()
                .ForEach(item => item.JmdictMeaning = regex.Replace(item.JmdictMeaning, ""));

            regex = new Regex(@"(\n  )?\[ant=[^\]]*\]");

            phraseSources
                .ToList()
                .ForEach(item => item.JmdictMeaning = regex.Replace(item.JmdictMeaning, ""));

            regex = new Regex(@"(\n  )?\[syn=[^\]]*\]");

            phraseSources
                .ToList()
                .ForEach(item => item.JmdictMeaning = regex.Replace(item.JmdictMeaning, ""));

Is there a way that I can combine these into just one Regex?

Could you provide some examples of matching text for each regex? — Jacek Rojek
– Jacek Rojek, Commented Oct 27, 2019 at 10:22
"Is there a way that I can combine these into just one Regex?" -- there are multiple ways to combine two regexes into a single one. It depends on what to you want to achieve with the new regex. — axiac
– axiac, Commented Oct 27, 2019 at 10:44

Jacek Rojek · Accepted Answer · 2019-10-27 10:26:44Z

1

You can use or operator inside inner group

(\n  )?\[((see|note|ant|restr|syn)=[^\]]*)\]

https://regex101.com/r/CyHvNh/1

answered Oct 27, 2019 at 10:26

Jacek Rojek

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Danilo Mercado Oudalova · Accepted Answer · 2019-10-27 10:18:26Z

0

Use the | operator and group all with parentesis ()

answered Oct 27, 2019 at 10:18

Danilo Mercado Oudalova

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