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#include <ctype.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <yajl/yajl_gen.h>
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#include <yajl/yajl_parse.h>
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/* FD's */
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FILE *in;
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FILE *out;
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struct yajl_handle_t *handle = NULL;
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struct yajl_gen_t *gen = NULL;
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#define BUF_SIZE (64 * 1024)
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static int
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write_integer(void *ctx, long long l)
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{
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fprintf(out, "i%llie", l);
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return 1;
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}
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static int
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write_dict_start(void *ctx)
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{ return fputc('d', out); }
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static int
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write_string(void *ctx, const unsigned char *str, size_t len)
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{ return (!!fprintf(out, "%u:", len) && !!fwrite(str, 1, len, out)); }
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static int
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write_list_start(void *ctx)
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{ return fputc('l', out); }
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/* for dictionary, list and integer *
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* end we have the same marker: 'e' */
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static int
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write_end(void *ctx)
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{ return fputc('e', out); return 0; }
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yajl_callbacks callbacks = {
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NULL, /* null */
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NULL, /* bool */
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write_integer, /* integer */
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NULL, /* double */
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NULL, /* number */
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write_string, /* string */
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write_dict_start, /* start map */
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write_string, /* map key */
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write_end, /* end map */
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write_list_start, /* start array */
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write_end /* end array */
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};
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void
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check_yajl_error(struct yajl_handle_t *handle, unsigned char *buf, size_t read)
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{
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unsigned char *yajl_error = NULL;
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if ((yajl_error = yajl_get_error(handle, 1, buf, read)) != NULL)
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{
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fwrite(buf, read, 1, stderr);
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fputc('\n', stderr);
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yajl_free_error(handle, yajl_error);
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}
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}
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int
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main(int argc, char **argv)
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{
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static unsigned char buf[BUF_SIZE];
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size_t read = 0;
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/* FILE */ in = stdin;
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/* FILE */ out = stdout;
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gen = yajl_gen_alloc(NULL);
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yajl_gen_config(gen, yajl_gen_validate_utf8, 0);
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handle = yajl_alloc(&callbacks, NULL, (void *) gen);
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yajl_config(handle, yajl_allow_comments, 1);
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yajl_config(handle, yajl_dont_validate_strings, 1);
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while ((read = fread(buf, 1, (BUF_SIZE - 1), in)) != 0)
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{
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buf[read] = '\0';
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if (yajl_parse(handle, buf, read) != yajl_status_ok)
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{
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check_yajl_error(handle, buf, read);
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break;
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}
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}
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if (yajl_complete_parse(handle) != yajl_status_ok)
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check_yajl_error(handle, buf, read);
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yajl_free(handle);
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exit(EXIT_SUCCESS);
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}
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