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[v3,6/6] userdiff-cpp: learn the C++ spaceship operator

Message ID cc9dc967f10b6e1cb1d97e815496151e32f19af8.1633885384.git.gitgitgadget@gmail.com (mailing list archive)
State Accepted
Commit c4fdba338355d80e40b84391af9f8c022d4f21af
Headers show
Series Fun with cpp word regex | expand

Commit Message

Johannes Sixt Oct. 10, 2021, 5:03 p.m. UTC 
From: Johannes Sixt <j6t@kdbg.org>

Since C++20, the language has a generalized comparison operator <=>.
Teach the cpp driver not to separate it into <= and > tokens.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
---
 t/t4034/cpp/expect | 2 +-
 userdiff.c         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/t/t4034/cpp/expect b/t/t4034/cpp/expect
index b90b3f207bf..5ff4ce477b4 100644
--- a/t/t4034/cpp/expect
+++ b/t/t4034/cpp/expect
@@ -25,7 +25,7 @@  str.e+<RED>65<RESET><GREEN>75<RESET>
 a<RED>*<RESET><GREEN>*=<RESET>b c<RED>/<RESET><GREEN>/=<RESET>d e<RED>%<RESET><GREEN>%=<RESET>f
 a<RED>+<RESET><GREEN>++<RESET>b c<RED>-<RESET><GREEN>--<RESET>d
 a<RED><<<RESET><GREEN><<=<RESET>b c<RED>>><RESET><GREEN>>>=<RESET>d
-a<RED><<RESET><GREEN><=<RESET>b c<RED><=<RESET><GREEN><<RESET>d e<RED>><RESET><GREEN>>=<RESET>f g<RED>>=<RESET><GREEN>><RESET>h i<=<GREEN>><RESET>j
+a<RED><<RESET><GREEN><=<RESET>b c<RED><=<RESET><GREEN><<RESET>d e<RED>><RESET><GREEN>>=<RESET>f g<RED>>=<RESET><GREEN>><RESET>h i<RED><=<RESET><GREEN><=><RESET>j
 a<RED>==<RESET><GREEN>!=<RESET>b c<RED>!=<RESET><GREEN>=<RESET>d
 a<RED>^<RESET><GREEN>^=<RESET>b c<RED>|<RESET><GREEN>|=<RESET>d e<RED>&&<RESET><GREEN>&=<RESET>f
 a<RED>||<RESET><GREEN>|<RESET>b
diff --git a/userdiff.c b/userdiff.c
index 5072d12e51e..96adddd6f9a 100644
--- a/userdiff.c
+++ b/userdiff.c
@@ -62,7 +62,7 @@  PATTERNS("cpp",
 	 "|0[xXbB][0-9a-fA-F']+[lLuU]*"
 	 /* floatingpoint numbers that begin with a decimal point */
 	 "|\\.[0-9][0-9']*([Ee][-+]?[0-9]+)?[fFlL]?"
-	 "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->\\*?|\\.\\*"),
+	 "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->\\*?|\\.\\*|<=>"),
 PATTERNS("csharp",
 	 /* Keywords */
 	 "!^[ \t]*(do|while|for|if|else|instanceof|new|return|switch|case|throw|catch|using)\n"