kc3-lang/kc3/libkc3/buf_save.c

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• Hash : 600f4487
  Author : Thomas de Grivel
  Date : 2024-07-20T19:00:22
  

  wip http and buf_parse

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• libkc3/buf_save.c

• /* kc3
   * Copyright 2022,2023,2024 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software granted the above
   * copyright notice and this permission paragraph are included in all
   * copies and substantial portions of this software.
   *
   * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
   * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
   * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
   * THIS SOFTWARE.
   */
  #include "assert.h"
  #include "buf.h"
  #include "buf_save.h"
  
  s_buf * buf_save_clean (s_buf *buf, s_buf_save *save)
  {
    assert(buf);
    assert(save);
    assert(buf->save == save);
    buf->save = save->next;
    return buf;
  }
  
  s_buf * buf_save_init (s_buf *buf, s_buf_save *save)
  {
    assert(buf);
    assert(save);
    save->line = buf->line;
    save->rpos = buf->rpos;
    save->wpos = buf->wpos;
    save->next = buf->save;
    buf->save = save;
    return buf;
  }
  
  uw buf_save_min_rpos (const s_buf *buf)
  {
    uw rpos;
    s_buf_save *save;
    rpos = buf->rpos;
    save = buf->save;
    while (save) {
      if (save->rpos < rpos)
        rpos = save->rpos;
      save = save->next;
    }
    return rpos;
  }
  
  uw buf_save_min_wpos (const s_buf *buf)
  {
    uw wpos;
    s_buf_save *save;
    wpos = buf->wpos;
    save = buf->save;
    while (save) {
      if (save->wpos < wpos)
        wpos = save->wpos;
      save = save->next;
    }
    return wpos;
  }
  
  s_buf * buf_save_restore_rpos (s_buf *buf, const s_buf_save *save)
  {
    assert(buf);
    assert(save);
    assert(buf->save == save);
    buf->line = save->line;
    buf->rpos = save->rpos;
    return buf;
  }
  
  s_buf * buf_save_restore_wpos (s_buf *buf, const s_buf_save *save)
  {
    assert(buf);
    assert(save);
    assert(buf->save == save);
    buf->line = save->line;
    buf->wpos = save->wpos;
    return buf;
  }
  

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