diff options
| author | Wolfgang Denk <wd@denx.de> | 2013-03-23 23:50:32 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-05-01 16:24:00 -0400 |
| commit | be29df6a1ac286e6c482828db28ca96e187c7e00 (patch) | |
| tree | db89b8eb8ae6bb1baa93e4d778f82cfcd71580be /include/search.h | |
| parent | a5ecbe62c25c7c9d6ddd0c9eb4d5ec3350642614 (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.h | 5 |
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 */ |