The repository I am working on has multiple source files in a non-flat directory structure, e.g.

project
│   main.cpp
│
└───moduleA
    │   A.cpp

All these source files have code something like

#include "A.h"

WINDOWS_DISABLE_WARNING
#include "externalA.h"
#include "externalB.h"
WINDOWS_ENABLE_WARNING

// more code

How can I use sed to replace all quotation marks include with angle brackets include between WINDOWS_DISABLE_WARNING macro and WINDOWS_ENABLE_WARNING macro for all files like below recursively?

#include "A.h"

WINDOWS_DISABLE_WARNING
#include <externalA.h>
#include <externalB.h>
WINDOWS_ENABLE_WARNING

// more code

I know how to replace simple strings recursively like find ./ -type f -exec sed -i 's/oldtext/newtext/' {} \;, but I am struggling to figure out how to replace quotation marks with angle brackets between two patterns.

The reason I am doing is this is because Visual Studio recently introduced /external:anglebrackets, if this flag is enabled, any headers included with angle brackets are treated as external, and the warnings coming from it can be turned off via /external:W0. That means no more ugly macros like WINDOWS_DISABLE_WARNING which is defined as __pragma(warning(push,0)) if on Windows, otherwise empty, via CMake's target_compile_definitions and similarly WINDOWS_ENABLE_WARNING which is defined as __pragma(warning(pop)) if on Windows, otherwise empty, via CMake's target_compile_definitions. Since using sed to remove the macros recursively is pretty straightforward, eventually the code can become clean like the below when working with loosely written third-party libraries with the new /external flags enabled.

#include "A.h"

#include <externalA.h>
#include <externalB.h>

// more code

CodePudding user response：

Read about addressing lines in sed

find ... -exec sed -i '/WINDOWS_DISABLE_WARNING/,/WINDOWS_ENABLE_WARNING/ { s/"/</; s/"/>/ }' '{}'  

Make sure to back your files up (sed -i.bak) (or omit the -i option) before experimenting with -i