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authorWolfgang Denk <wd@denx.de>2013-03-23 23:50:32 +0000
committerTom Rini <trini@ti.com>2013-05-01 16:24:00 -0400
commitbe29df6a1ac286e6c482828db28ca96e187c7e00 (patch)
treedb89b8eb8ae6bb1baa93e4d778f82cfcd71580be /include/search.h
parenta5ecbe62c25c7c9d6ddd0c9eb4d5ec3350642614 (diff)
"env grep" - add support for regular expression matches
When CONFIG_REGEX is enabled, the new option "-e" becomes available which causes regular expression matches to be used. This allows for example things like these: - print all MAC addresses: => env grep -e eth.*addr eth1addr=00:10:ec:80:c5:15 ethaddr=00:10:ec:00:c5:15 - print all variables that have at least 2 colons in their value: => env grep -v -e :.*: addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off panic=1 eth1addr=00:10:ec:80:c5:15 ethaddr=00:10:ec:00:c5:15 ver=U-Boot 2013.04-rc1-00289-g497746b-dirty (Mar 22 2013 - 12:50:25) etc. Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'include/search.h')
-rw-r--r--include/search.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/search.h b/include/search.h
index d06a2017a5c..d9ac8dfa071 100644
--- a/include/search.h
+++ b/include/search.h
@@ -129,7 +129,8 @@ extern int hwalk_r(struct hsearch_data *__htab, int (*callback)(ENTRY *));
#define H_MATCH_DATA (1 << 5) /* search/grep data = variable values */
#define H_MATCH_BOTH (H_MATCH_KEY | H_MATCH_DATA) /* search/grep both */
#define H_MATCH_IDENT (1 << 6) /* search for indentical strings */
-#define H_MATCH_SUBSTR (1 << 7) /* search for substring matches */
-#define H_MATCH_METHOD (H_MATCH_IDENT | H_MATCH_SUBSTR)
+#define H_MATCH_SUBSTR (1 << 7) /* search for substring matches */
+#define H_MATCH_REGEX (1 << 8) /* search for regular expression matches */
+#define H_MATCH_METHOD (H_MATCH_IDENT | H_MATCH_SUBSTR | H_MATCH_REGEX)
#endif /* search.h */