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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <raptor2.h>
/* rdfguess.c: guess parser name from filename and its content */
#define READ_BUFFER_SIZE 256
static int
rdfguess_guess_name(raptor_world* world, const char* filename)
{
char *buffer[READ_BUFFER_SIZE];
raptor_iostream* iostr = NULL;
const char* name;
const unsigned char* identifier;
const char* label;
size_t read_len;
size_t count;
if(!strcmp(filename, "-")) {
iostr = raptor_new_iostream_from_file_handle(world, stdin);
identifier = NULL;
label = "<stdin>";
} else {
if(access(filename, R_OK)) {
fprintf(stderr, "rdfguess: file %s not found\n", filename);
return 1;
}
iostr = raptor_new_iostream_from_filename(world, filename);
identifier = (const unsigned char *)filename;
label = filename;
}
if(!iostr) {
fprintf(stderr, "rdfguess: Could not create iostream for %s\n", label);
goto tidy;
}
read_len = READ_BUFFER_SIZE;
count = raptor_iostream_read_bytes(buffer, 1, read_len, iostr);
if(count < 1) {
fprintf(stderr, "rdfguess: Failed to read any data from %s\n",
label);
goto tidy;
}
name = raptor_world_guess_parser_name(world,
/* uri*/ NULL,
/* mime_type */ NULL,
(const unsigned char*)buffer,
read_len,
identifier);
if(name)
fprintf(stdout, "rdfguess: %s guessed to be %s\n", label, name);
else
fprintf(stdout, "rdfguess: failed to guess parser for %s\n", label);
tidy:
raptor_free_iostream(iostr);
return 0;
}
int
main(int argc, char *argv[])
{
raptor_world *world = NULL;
const char *filename;
int rc = 0;
world = raptor_new_world();
if(argc == 2 && (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))) {
fprintf(stderr, "USAGE rdfguess [FILENAMES...]\n");
rc = 1;
goto tidy;
}
if(argc == 1) {
rc = rdfguess_guess_name(world, "-");
} else {
int i;
for(i = 1; (filename = (const char*)argv[i]); i++) {
rc = rdfguess_guess_name(world, filename);
if(rc)
break;
}
}
tidy:
raptor_free_world(world);
return rc;
}
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