/* This file is part of the YAZ toolkit.
- * Copyright (C) 1995-2010 Index Data.
+ * Copyright (C) Index Data.
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
#define YAZ_ICONV_EINVAL 4
/** \brief just like iconv_open(3) */
-YAZ_EXPORT yaz_iconv_t yaz_iconv_open (const char *tocode,
- const char *fromcode);
+YAZ_EXPORT yaz_iconv_t yaz_iconv_open(const char *tocode, const char *fromcode);
/** \brief just like iconv(3) */
-YAZ_EXPORT size_t yaz_iconv (yaz_iconv_t cd, char **inbuf, size_t *inbytesleft,
- char **outbuf, size_t *outbytesleft);
+YAZ_EXPORT size_t yaz_iconv(yaz_iconv_t cd, char **inbuf, size_t *inbytesleft,
+ char **outbuf, size_t *outbytesleft);
/** \brief returns last error - like errno for iconv(3) */
-YAZ_EXPORT int yaz_iconv_error (yaz_iconv_t cd);
+YAZ_EXPORT int yaz_iconv_error(yaz_iconv_t cd);
/** \brief just like iconv_close(3) */
-YAZ_EXPORT int yaz_iconv_close (yaz_iconv_t cd);
+YAZ_EXPORT int yaz_iconv_close(yaz_iconv_t cd);
/** \brief tests whether conversion is handled by YAZ' iconv or system iconv */
YAZ_EXPORT int yaz_iconv_isbuiltin(yaz_iconv_t cd);
-YAZ_EXPORT unsigned long yaz_read_UTF8_char(unsigned char *inp,
+YAZ_EXPORT unsigned long yaz_read_UTF8_char(const unsigned char *inp,
size_t inbytesleft,
size_t *no_read,
int *error);
-/** \brief encodes UTF-8 sequence
+/** \brief encodes UTF-8 sequence
\param x the UNICODE value
\param outbuf output buffer pointer, updated if conversion is successful
\param outbytesleft length of buffer, updated if conversino is successful
char **outbuf, size_t *outbytesleft,
int *error);
+/* ctype.h macros ASCII based. That do not depend on LANG, nor require
+ unsigned int as argument */
+#define yaz_isdigit(x) ((x) >= '0' && (x) <= '9')
+#define yaz_isspace(x) strchr(" \f\r\n\t\v", x)
+#define yaz_toupper(x) ((x) + ('A' - 'a'))
+#define yaz_isupper(x) ((x) >= 'A' && (x) <= 'Z')
+#define yaz_tolower(x) ((x) + ('a' - 'A'))
+#define yaz_islower(x) ((x) >= 'a' && (x) <= 'z')
+
+/** \brief check whether string apppers to be UTF-8 encoded
+ \param cstr string to check
+ \retval 1 OK (appears to be UTF-8)
+ \retval 0 definitely not UTF-8
+*/
+YAZ_EXPORT int yaz_utf8_check(const char *cstr);
+
YAZ_END_CDECL
#endif