X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Funistr.h;h=26a3e33e458fa42943924eb90dd6709ad7516e47;hb=e8269e90e35140ebb75f39669d39bd021e364105;hp=a645292c064a96726daa788a06a33b2f50a6ed9e;hpb=ac5cf7982cea8a4bb17680b6b9925f301cfa4220;p=gnulib.git

diff --git a/lib/unistr.h b/lib/unistr.h
index a645292c0..26a3e33e4 100644
--- a/lib/unistr.h
+++ b/lib/unistr.h
@@ -1,5 +1,5 @@
 /* Elementary Unicode string functions.
-   Copyright (C) 2001-2002, 2005-2007 Free Software Foundation, Inc.
+   Copyright (C) 2001-2002, 2005-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU Lesser General Public License as published
@@ -19,6 +19,9 @@
 
 #include "unitypes.h"
 
+/* Get common macros for C.  */
+#include "unused-parameter.h"
+
 /* Get bool.  */
 #include <stdbool.h>
 
@@ -81,32 +84,32 @@ extern const uint32_t *
 /* Convert an UTF-8 string to an UTF-16 string.  */
 extern uint16_t *
        u8_to_u16 (const uint8_t *s, size_t n, uint16_t *resultbuf,
-		  size_t *lengthp);
+                  size_t *lengthp);
 
 /* Convert an UTF-8 string to an UCS-4 string.  */
 extern uint32_t *
        u8_to_u32 (const uint8_t *s, size_t n, uint32_t *resultbuf,
-		  size_t *lengthp);
+                  size_t *lengthp);
 
 /* Convert an UTF-16 string to an UTF-8 string.  */
 extern uint8_t *
        u16_to_u8 (const uint16_t *s, size_t n, uint8_t *resultbuf,
-		  size_t *lengthp);
+                  size_t *lengthp);
 
 /* Convert an UTF-16 string to an UCS-4 string.  */
 extern uint32_t *
        u16_to_u32 (const uint16_t *s, size_t n, uint32_t *resultbuf,
-		   size_t *lengthp);
+                   size_t *lengthp);
 
 /* Convert an UCS-4 string to an UTF-8 string.  */
 extern uint8_t *
        u32_to_u8 (const uint32_t *s, size_t n, uint8_t *resultbuf,
-		  size_t *lengthp);
+                  size_t *lengthp);
 
 /* Convert an UCS-4 string to an UTF-16 string.  */
 extern uint16_t *
        u32_to_u16 (const uint32_t *s, size_t n, uint16_t *resultbuf,
-		   size_t *lengthp);
+                   size_t *lengthp);
 
 
 /* Elementary string functions.  */
@@ -183,7 +186,8 @@ extern int
        u32_mbtouc_unsafe (ucs4_t *puc, const uint32_t *s, size_t n);
 # else
 static inline int
-u32_mbtouc_unsafe (ucs4_t *puc, const uint32_t *s, size_t n)
+u32_mbtouc_unsafe (ucs4_t *puc,
+                   const uint32_t *s, size_t n _GL_UNUSED_PARAMETER)
 {
   uint32_t c = *s;
 
@@ -253,7 +257,7 @@ extern int
        u32_mbtouc (ucs4_t *puc, const uint32_t *s, size_t n);
 # else
 static inline int
-u32_mbtouc (ucs4_t *puc, const uint32_t *s, size_t n)
+u32_mbtouc (ucs4_t *puc, const uint32_t *s, size_t n _GL_UNUSED_PARAMETER)
 {
   uint32_t c = *s;
 
@@ -297,12 +301,13 @@ extern int
    must be specified.  */
 
 #ifdef GNULIB_UNISTR_U8_UCTOMB
+/* Auxiliary function, also used by u8_chr, u8_strchr, u8_strrchr.  */
+extern int
+       u8_uctomb_aux (uint8_t *s, ucs4_t uc, int n);
 # if !HAVE_INLINE
 extern int
        u8_uctomb (uint8_t *s, ucs4_t uc, int n);
 # else
-extern int
-       u8_uctomb_aux (uint8_t *s, ucs4_t uc, int n);
 static inline int
 u8_uctomb (uint8_t *s, ucs4_t uc, int n)
 {
@@ -318,12 +323,13 @@ u8_uctomb (uint8_t *s, ucs4_t uc, int n)
 #endif
 
 #ifdef GNULIB_UNISTR_U16_UCTOMB
+/* Auxiliary function, also used by u16_chr, u16_strchr, u16_strrchr.  */
+extern int
+       u16_uctomb_aux (uint16_t *s, ucs4_t uc, int n);
 # if !HAVE_INLINE
 extern int
        u16_uctomb (uint16_t *s, ucs4_t uc, int n);
 # else
-extern int
-       u16_uctomb_aux (uint16_t *s, ucs4_t uc, int n);
 static inline int
 u16_uctomb (uint16_t *s, ucs4_t uc, int n)
 {
@@ -349,12 +355,12 @@ u32_uctomb (uint32_t *s, ucs4_t uc, int n)
   if (uc < 0xd800 || (uc >= 0xe000 && uc < 0x110000))
     {
       if (n > 0)
-	{
-	  *s = uc;
-	  return 1;
-	}
+        {
+          *s = uc;
+          return 1;
+        }
       else
-	return -2;
+        return -2;
     }
   else
     return -1;
@@ -400,6 +406,15 @@ extern int
 extern int
        u32_cmp (const uint32_t *s1, const uint32_t *s2, size_t n);
 
+/* Compare S1 and S2.  */
+/* Similar to the gnulib function memcmp2().  */
+extern int
+       u8_cmp2 (const uint8_t *s1, size_t n1, const uint8_t *s2, size_t n2);
+extern int
+       u16_cmp2 (const uint16_t *s1, size_t n1, const uint16_t *s2, size_t n2);
+extern int
+       u32_cmp2 (const uint32_t *s1, size_t n1, const uint32_t *s2, size_t n2);
+
 /* Search the string at S for UC.  */
 /* Similar to memchr().  */
 extern uint8_t *
@@ -514,8 +529,8 @@ extern uint16_t *
 extern uint32_t *
        u32_strncpy (uint32_t *dest, const uint32_t *src, size_t n);
 
-/* Copy no more than N characters of SRC to DEST, returning the address of
-   the last character written into DEST.  */
+/* Copy no more than N units of SRC to DEST.  Return a pointer past the last
+   non-NUL unit written into DEST.  */
 /* Similar to stpncpy().  */
 extern uint8_t *
        u8_stpncpy (uint8_t *dest, const uint8_t *src, size_t n);
@@ -551,6 +566,17 @@ extern int
 extern int
        u32_strcmp (const uint32_t *s1, const uint32_t *s2);
 
+/* Compare S1 and S2 using the collation rules of the current locale.
+   Return -1 if S1 < S2, 0 if S1 = S2, 1 if S1 > S2.
+   Upon failure, set errno and return any value.  */
+/* Similar to strcoll(), wcscoll().  */
+extern int
+       u8_strcoll (const uint8_t *s1, const uint8_t *s2);
+extern int
+       u16_strcoll (const uint16_t *s1, const uint16_t *s2);
+extern int
+       u32_strcoll (const uint32_t *s1, const uint32_t *s2);
+
 /* Compare no more than N units of S1 and S2.  */
 /* Similar to strncmp(), wcsncmp().  */
 extern int