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Manual Reference Pages  -  UNIBI_FORMAT (3)

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unibi_format, unibi_run - interpret a terminfo format string



  #include <unibilium.h>
  void unibi_format(
      unibi_var_t var_dyn[26],
      unibi_var_t var_static[26],
      const char *fmt,
      unibi_var_t param[9],
      void (*out)(void *, const char *, size_t),
      void *ctx1,
      void (*pad)(void *, size_t, int, int),
      void *ctx2
  size_t unibi_run(const char *fmt, unibi_var_t param[9], char *p, size_t n);


unibi_format takes a format string fmt and executes it. All output is done by (possibly repeated) calls to out. In the calls to out the first argument is always ctx1, the second argument is a pointer to a chunk of data, and the third argument is a count specifying the size of the chunk in bytes.

pad is used when the format string contains $<...> padding instructions. In the calls to pad the first argument is always ctx2, the second argument is the delay in tenths of milliseconds, the third argument is a boolean flag indicating whether * (proportional delay) was specified in the format string, and the fourth argument is a boolean flag indicating whether / (forced padding) was specified in the format string. Thus a format string of $<5/> would translate into pad(ctx2, 50, 0, 1). You may pass a null pointer for pad; in that case padding instructions are silently skipped.

The values of param are used for the format codes %p1 .. %p9; the values of var_dyn and var_static are used for the so-called dynamic/static variables %Pa .. %Pz and %PA .. %PZ, respectively.

unibi_run is a wrapper around unibi_format. It passes two arrays (each initialized to 26 zeroes) as var_dyn and var_static. fmt and param are passed on unchanged. It ignores padding and places all normal output in the buffer pointed to by p. n is the size of the buffer; at most n bytes will be written to p.


unibi_run returns the number of bytes that would have been written if the buffer was big enough. Thus the number of valid bytes in p after a call to unibi_run is the minimum of n and the return value of unibi_run.


unibi_var_from_num(3), unibi_var_from_str(3), unibilium.h(3)
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unibilium-1.2.0 DOC::UNIBI_FORMAT (3) 2015-08-14

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