userdiff: two simplifications of patterns for rust

diff --git a/userdiff.c b/userdiff.c
index 3a78fbf5044fbc5d5624ce94e54eb4ab325e2cf1..2bcf105caf75f72584d6dc65046a41ade20a4263 100644 (file)
--- a/userdiff.c
+++ b/userdiff.c
@@ -130,6 +130,12 @@ PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$",
         "(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*"
         "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?."
         "|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~"),
+PATTERNS("rust",
+        "^[\t ]*((pub(\\([^\\)]+\\))?[\t ]+)?((async|const|unsafe|extern([\t ]+\"[^\"]+\"))[\t ]+)?(struct|enum|union|mod|trait|fn|impl)[< \t]+[^;]*)$",
+        /* -- */
+        "[a-zA-Z_][a-zA-Z0-9_]*"
+        "|[0-9][0-9_a-fA-Fiosuxz]*(\\.([0-9]*[eE][+-]?)?[0-9_fF]*)?"
+        "|[-+*\\/<>%&^|=!:]=|<<=?|>>=?|&&|\\|\\||->|=>|\\.{2}=|\\.{3}|::"),
 PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$",
         "[={}\"]|[^={}\" \t]+"),
 PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$",