static int
raptor_ntriples_term_valid(unsigned char c, int position,
raptor_ntriples_term_class term_class)
{
int result = 0;
switch(term_class) {
case RAPTOR_TERM_CLASS_URI:
/* ends on > */
result = (c != '>');
break;
case RAPTOR_TERM_CLASS_BNODEID:
/* ends on first non [A-Za-z0-9_:][-.A-Za-z0-9]* */
result = IS_ASCII_ALPHA(c) || IS_ASCII_DIGIT(c) || c == '_' || c == ':';
if(position)
/* FIXME
* This isn't correct; '.' is allowed in positions 1..N-1 but
* this calling convention of character-by-character cannot
* check this.
*/
result = (result || c == '-' || c == '.');
break;
case RAPTOR_TERM_CLASS_STRING:
/* ends on " */
result = (c != '"');
break;
case RAPTOR_TERM_CLASS_LANGUAGE:
/* ends on first non [a-zA-Z]+ ('-' [a-zA-Z0-9]+ )? */
result = IS_ASCII_ALPHA(c);
if(position)
result = (result || IS_ASCII_DIGIT(c) || c == '-');
break;
default:
RAPTOR_DEBUG2("Unknown N-Triples term class %d", term_class);
}
return result;
}
static int
raptor_ntriples_term_valid(unsigned char c, int position,
raptor_ntriples_term_class term_class)
{
int result=0;
switch(term_class) {
case RAPTOR_TERM_CLASS_URI:
/* ends on > */
result=(c!= '>');
break;
case RAPTOR_TERM_CLASS_BNODEID:
/* ends on first non [A-Za-z][A-Za-z0-9]* */
result=IS_ASCII_ALPHA(c);
if(position)
result = (result || IS_ASCII_DIGIT(c));
break;
case RAPTOR_TERM_CLASS_STRING:
/* ends on " */
result=(c!= '"');
break;
case RAPTOR_TERM_CLASS_LANGUAGE:
/* ends on first non [a-z0-9]+ ('-' [a-z0-9]+ )? */
result=(IS_ASCII_ALPHA(c) || IS_ASCII_DIGIT(c));
if(position)
result = (result || c=='-');
break;
case RAPTOR_TERM_CLASS_FULL:
result=1;
break;
default:
RAPTOR_FATAL2("Unknown ntriples term %d", term_class);
}
return result;
}
static int
raptor_ntriples_term_valid(raptor_parser* rdf_parser,
unsigned char c, int position,
raptor_ntriples_term_class term_class)
{
int result = 0;
switch(term_class) {
case RAPTOR_TERM_CLASS_URI:
/* ends on > */
result = (c != '>');
break;
case RAPTOR_TERM_CLASS_BNODEID:
/* ends on first non [A-Za-z][A-Za-z0-9]* */
result = IS_ASCII_ALPHA(c);
if(position)
result = (result || IS_ASCII_DIGIT(c));
break;
case RAPTOR_TERM_CLASS_STRING:
/* ends on " */
result = (c != '"');
break;
case RAPTOR_TERM_CLASS_LANGUAGE:
/* ends on first non [a-zA-Z]+ ('-' [a-zA-Z0-9]+ )? */
result = IS_ASCII_ALPHA(c);
if(position)
result = (result || IS_ASCII_DIGIT(c) || c == '-');
break;
default:
raptor_parser_error(rdf_parser, "Unknown N-Triples term class %d",
term_class);
}
return result;
}
/** Check if input line contains a meta delimiter;
* @return 1 if it does, 0 otherwise.
*/
static int ltermMetaInput(struct lterms *lts)
{
struct LtermInput *lti = &(lts->ltermInput);
UNICHAR *delimLoc, *ustr, *ustr2;
LTERM_LOG(ltermMetaInput,40,("\n"));
if (lts->options & LTERM_NOMETA_FLAG)
return 0;
/* Assert that there is at least one free character position in the buffer */
assert(lti->inputChars < MAXCOL);
/* Insert null character at the end of the input buffer */
lti->inputLine[lti->inputChars] = U_NUL;
/* Locate first occurrence of meta delimiter in input line */
delimLoc = ucschr(lti->inputLine, ltermGlobal.metaDelimiter);
if (delimLoc == NULL)
return 0;
for (ustr=lti->inputLine; ustr<delimLoc; ustr++) /* skip spaces/TABs */
if ((*ustr != U_SPACE) && (*ustr != U_TAB)) break;
if (ustr == delimLoc) {
/* Nameless meta command */
LTERM_LOG(ltermMetaInput,41,("Nameless meta command\n"));
return 1;
}
if (!IS_ASCII_LETTER(*ustr)) /* meta command must start with a letter */
return 0;
for (ustr2=ustr+1; ustr2<delimLoc; ustr2++)
if (!IS_ASCII_LETTER(*ustr2) && !IS_ASCII_DIGIT(*ustr2))
return 0;
LTERM_LOG(ltermMetaInput,41,("Named meta command\n"));
return 1;
}
