[PATCH v2 5/5] userdiff-cpp: learn the C++ spaceship operator

["Johannes Sixt via GitGitGadget" <gitgitgadget@gmail.com>]

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 | 4 ++--
 t/t4034/cpp/post   | 2 +-
 t/t4034/cpp/pre    | 2 +-
 userdiff.c         | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/t/t4034/cpp/expect b/t/t4034/cpp/expect
index a3a234f5461..bf3cd2abc74 100644
--- a/t/t4034/cpp/expect
+++ b/t/t4034/cpp/expect
@@ -1,5 +1,5 @@
 <BOLD>diff --git a/pre b/post<RESET>
-<BOLD>index 60f3640..f6fbf7b 100644<RESET>
+<BOLD>index 144cd98..244f79c 100644<RESET>
 <BOLD>--- a/pre<RESET>
 <BOLD>+++ b/post<RESET>
 <CYAN>@@ -1,30 +1,30 @@<RESET>
@@ -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
+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/t/t4034/cpp/post b/t/t4034/cpp/post
index f6fbf7bc04c..244f79c9900 100644
--- a/t/t4034/cpp/post
+++ b/t/t4034/cpp/post
@@ -20,7 +20,7 @@ str.e+75
 a*=b c/=d e%=f
 a++b c--d
 a<<=b c>>=d
-a<=b c<d e>=f g>h
+a<=b c<d e>=f g>h i<=>j
 a!=b c=d
 a^=b c|=d e&=f
 a|b
diff --git a/t/t4034/cpp/pre b/t/t4034/cpp/pre
index 60f3640d773..144cd980d6b 100644
--- a/t/t4034/cpp/pre
+++ b/t/t4034/cpp/pre
@@ -20,7 +20,7 @@ str.e+65
 a*b c/d e%f
 a+b c-d
 a<<b c>>d
-a<b c<=d e>f g>=h
+a<b c<=d e>f g>=h i<=j
 a==b c!=d
 a^b c|d e&&f
 a||b
diff --git a/userdiff.c b/userdiff.c
index 1b640c7df79..13cec0b48db 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']+([Ee][-+]?[0-9]+)?[fFlL]?"
-	 "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->\\*?|\\.\\*"),
+	 "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->\\*?|\\.\\*|<=>"),
 PATTERNS("csharp",
 	 /* Keywords */
 	 "!^[ \t]*(do|while|for|if|else|instanceof|new|return|switch|case|throw|catch|using)\n"
-- 
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