text: #ifndef PAF_PAF_H
  #define PAF_PAF_H
  
  #include <stdint.h>
  #include <sys/types.h>
  
  #ifndef KSTRING_T
  #define KSTRING_T kstring_t
  typedef struct __kstring_t {
  	size_t l, m;
  	char *s;
  } kstring_t;
  #endif
  
  typedef struct {
  	void *fp;
  	kstring_t buf;
  } paf_file_t;
  
  typedef struct {
  	const char *qn, *tn; // these point to the input string; NOT allocated
  	uint32_t ql, qs, qe, tl, ts, te;
  	uint32_t ml:31, rev:1, bl;
  	int mq:31, isprim:1;
  } paf_rec_t;
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  paf_file_t *paf_open(const char *fn);
  int paf_close(paf_file_t *pf);
  int paf_read(paf_file_t *pf, paf_rec_t *r);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif
  