lkml.org 
[lkml]   [2018]   [May]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 09/15] nls: Add optional normalization and casefold hooks
Date
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
include/linux/nls.h | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/include/linux/nls.h b/include/linux/nls.h
index 72698d524b42..efd3712f0e81 100644
--- a/include/linux/nls.h
+++ b/include/linux/nls.h
@@ -4,6 +4,7 @@

#include <linux/init.h>
#include <linux/string.h>
+#include <linux/errno.h>

/* Unicode has changed over the years. Unicode code points no longer
* fit into 16 bits; as of Unicode 5 valid code points range from 0
@@ -38,7 +39,12 @@ struct nls_ops {
unsigned int c);
unsigned char (*uppercase)(const struct nls_table *charset,
unsigned int c);
-
+ int (*casefold)(const struct nls_table *charset,
+ const unsigned char *str, size_t len,
+ unsigned char **folded);
+ int (*normalize)(const struct nls_table *charset,
+ const unsigned char *str, size_t len,
+ unsigned char **normalized);
};

struct nls_table {
@@ -156,6 +162,26 @@ static inline int nls_strnicmp(struct nls_table *t, const unsigned char *s1,
return nls_strncasecmp(t, s1, len, s2, len);
}

+static inline int nls_casefold(const struct nls_table *charset,
+ const unsigned char *str, size_t len,
+ unsigned char **folded)
+{
+ if (charset->ops->casefold)
+ return charset->ops->casefold(charset, str, len, folded);
+
+ return -ENOTSUPP;
+}
+
+static inline int nls_normalize(const struct nls_table *charset,
+ const unsigned char *str, size_t len,
+ unsigned char **normalized)
+{
+ if (charset->ops->normalize)
+ return charset->ops->normalize(charset, str, len, normalized);
+
+ return -ENOTSUPP;
+}
+
/*
* nls_nullsize - return length of null character for codepage
* @codepage - codepage for which to return length of NULL terminator
--
2.17.0
\
 
 \ /
  Last update: 2018-05-21 19:39    [W:0.119 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site