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| author | Dave Beckett <dave@dajobe.org> | 2013-08-11 14:43:51 -0700 |
|---|---|---|
| committer | Dave Beckett <dave@dajobe.org> | 2013-08-11 19:46:47 -0700 |
| commit | 7b4788f656546be7abdd87122c03ea005e771c17 (patch) | |
| tree | 896b2ce80ca8f31ace5bf66d2642b1bf713ed75b /src/ntriples_parse.c | |
| parent | 2602d48a726aaf8d901a4720b771b6c49254d37a (diff) | |
| download | raptor-7b4788f656546be7abdd87122c03ea005e771c17.tar.gz | |
(raptor_normalize_language): Added to normalize to en-US-BLAH
Diffstat (limited to 'src/ntriples_parse.c')
| -rw-r--r-- | src/ntriples_parse.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/src/ntriples_parse.c b/src/ntriples_parse.c index 0e2da00a..84e62ed7 100644 --- a/src/ntriples_parse.c +++ b/src/ntriples_parse.c @@ -256,10 +256,12 @@ raptor_ntriples_generate_statement(raptor_parser* parser, /* These are for 7-bit ASCII and not locale-specific */ #define IS_ASCII_ALPHA(c) (((c) > 0x40 && (c) < 0x5B) || ((c) > 0x60 && (c) < 0x7B)) +#define IS_ASCII_LOWER(c) ((c) > 0x60 && (c) < 0x7B) #define IS_ASCII_UPPER(c) ((c) > 0x40 && (c) < 0x5B) #define IS_ASCII_DIGIT(c) ((c) > 0x2F && (c) < 0x3A) #define IS_ASCII_PRINT(c) ((c) > 0x1F && (c) < 0x7F) -#define TO_ASCII_LOWER(c) ((c)+0x20) +#define TO_ASCII_LOWER(c) ((c) + 0x20) +#define TO_ASCII_UPPER(c) ((c) - 0x20) typedef enum { RAPTOR_TERM_CLASS_URI, /* ends on > */ @@ -535,6 +537,44 @@ raptor_ntriples_term(raptor_parser* rdf_parser, #define MAX_NTRIPLES_TERMS 4 +/* + * raptor_normalize_language: + * @language: language + * + * INTERNAL - Normalize language to lowercase + * + * http://www.w3.org/TR/rdf-concepts/#dfn-language-identifier + * + * Return value: non-0 if normalized + */ +int +raptor_normalize_language(char* language) +{ + char *p; + int seen_ = 0; + int normalized = 0; + + if(!language) + return 0; + + for(p = language; *p; p++) { + if(*p == '-') + seen_ ++; + else if(!seen_) { + if(IS_ASCII_UPPER(*p)) { + *p = TO_ASCII_LOWER(*p); + normalized = 1; + } + } else if(IS_ASCII_LOWER(*p)) { + *p = TO_ASCII_UPPER(*p); + normalized = 1; + } + } + + return normalized; +} + + static int raptor_ntriples_parse_line(raptor_parser* rdf_parser, unsigned char *buffer, size_t len, |