fast-import: duplicate into history rather than passing ownership

diff --git a/userdiff.c b/userdiff.c
index bcae006abe70641fa732590eef0638c10de2b237..e74a6d402255b0eaf1022863ba30305930d29b6f 100644 (file)
--- a/userdiff.c
+++ b/userdiff.c
@@ -58,9 +58,11 @@ PATTERNS("java",
         "|[-+*/<>%&^|=!]="
         "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|"),
 PATTERNS("matlab",
-        /* Octave pattern is mostly the same as matlab, except that '%%%' and
+        /*
+         * Octave pattern is mostly the same as matlab, except that '%%%' and
          * '##' can also be used to begin code sections, in addition to '%%'
-         * that is understood by both. */
+         * that is understood by both.
+         */
         "^[[:space:]]*((classdef|function)[[:space:]].*)$|^(%%%?|##)[[:space:]].*$",
         "[a-zA-Z_][a-zA-Z0-9_]*|[-+0-9.e]+|[=~<>]=|\\.[*/\\^']|\\|\\||&&"),
 PATTERNS("objc",
@@ -133,6 +135,12 @@ 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}\\{.*)$",