Multiline regular expression search in Visual Studio Code

Multiline search is added in v1.29 released in November 2018. See multi-line search.

VS Code now supports multiline search! Same as in the editor, a regex search executes in multiline mode only if it contains a \n literal. The Search view shows a hint next to each multiline match, with the number of additional match lines.

This feature is possible thanks to the work done in the ripgrep tool to implement multiline search.

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Multiline search is coming to the Find Widget with v1.38. See multiline find "pre-release" notes.

Multi Line search in Find Widget

The Find Widget now supports multiple line text search and replace. By pressing Ctrl+Enter, you can insert new lines into the input box.

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Odd that it is Ctrl+Enter in the Find Widget but Shift+Enter in the Search Panel (see Deepu's answer below). Shift+Enter has other functionality when the Find Widget is focused.

yes, you could use regex for mutliple line search in VScode.

To find a multi-line text block starting from aaa and ending with the first bbb (lazy qualifier)

aaa(.|\n)+?bbb

To find a multi-line text block starting from aaa and ending with the last bbb. (greedy qualifier)

aaa(.|\n)+bbb