56     str->buffer->delete_range(str->buffer->tell((buf_char*)pptr()),  in truncate()
57 			      str->buffer->tell(str->end));  in truncate()
62 inline void  disconnect_gap_from_file(edit_buffer* buffer, FILE* fp)  in disconnect_gap_from_file()  argument
64     if (buffer->gap_start_ptr != &fp->__bufp)  in disconnect_gap_from_file()
66     buffer->gap_start_normal = fp->__bufp;  in disconnect_gap_from_file()
67     buffer->gap_start_ptr = &buffer->gap_start_normal;  in disconnect_gap_from_file()
71 void edit_streambuf::flush_to_buffer(edit_buffer* buffer)  in flush_to_buffer()  argument
73     if (pptr() > buffer->_gap_start && pptr() < buffer->gap_end())  in flush_to_buffer()
74 	buffer->_gap_start = pptr();  in flush_to_buffer()
77 void edit_streambuf::disconnect_gap_from_file(edit_buffer* buffer)  in disconnect_gap_from_file()  argument
79     if (buffer->_writer != this) return;  in disconnect_gap_from_file()
80     flush_to_buffer(buffer);  in disconnect_gap_from_file()
82     buffer->_writer = NULL;      in disconnect_gap_from_file()
96     return str->buffer->tell(file->__bufp);
323    __off == index at start of buffer (need only be valid after seek ? )
327      __endp <= min(*gap_start_ptr, edit_string->end->ptr(buffer))
331      file->edit_string->end->ptr(buffer) == *gap_start_ptr+end
340     struct edit_buffer *buffer = str->buffer;  in underflow()  local
342 	disconnect_gap_from_file(buffer);  in underflow()
345     buf_char *str_end = str->end->ptr(buffer);  in underflow()
352     if (str_end <= buffer->gap_start()) {  in underflow()
356     if (gptr() < buffer->gap_start()) {  in underflow()
357 	setg(eback(), gptr(), buffer->gap_start());  in underflow()
360     if (gptr() == buffer->gap_start()) {  in underflow()
361 	disconnect_gap_from_file(buffer);  in underflow()
363 	setg(buffer->gap_end(), buffer->gap_end(), str_end);  in underflow()
374     struct edit_buffer *buffer = str->buffer;  in overflow()  local
375     flush_to_buffer(buffer);  in overflow()
381     buf_char *str_end = str->end->ptr(buffer);  in overflow()
390 	if (buffer->_writer)  in overflow()
391 	    buffer->_writer->flush_to_buffer(); // Redundant?  in overflow()
392 	buffer->_writer = NULL;  in overflow()
393 	if  (pptr() >= buffer->gap_end())  in overflow()
394 	    buffer->move_gap(pptr() - buffer->gap_size());  in overflow()
396 	    buffer->move_gap(pptr());  in overflow()
397 	buffer->make_gap(1);  in overflow()
398 	setp(buffer->gap_start(), buffer->gap_end());  in overflow()
399 	buffer->_writer = this;  in overflow()
404     if (str_end <= buffer->gap_start()) {  in overflow()
408     else if (pptr() < buffer->gap_start()) {  in overflow()
410 	setp(pptr(), buffer->gap_start());  in overflow()
413     else if (pptr() == buffer->gap_start()) {  in overflow()
416 	setp(buffer->gap_end(), str_end);  in overflow()
443     struct edit_buffer *buffer = str->buffer;  in seekoff()  local
444     disconnect_gap_from_file(buffer);  in seekoff()
445     buf_index cur_pos = buffer->tell((buf_char*)current());;  in seekoff()
446     buf_index start_pos = buffer->tell(str->start);  in seekoff()
447     buf_index end_pos = buffer->tell(str->end);  in seekoff()
461     buf_char *new_pos = buffer->data + offset;  in seekoff()
462     buf_char* gap_start = buffer->gap_start();  in seekoff()
464 	buf_char* gap_end = buffer->gap_end();  in seekoff()
466 	if (new_pos >= buffer->data + buffer->buf_size) abort(); // Paranoia.  in seekoff()
477     struct edit_buffer *buffer = cookie->str->buffer;
478     buf_char *str_start = cookie->str->start->ptr(buffer);
479     disconnect_gap_from_file(buffer, cookie->file);
481     if (file->__bufp <= *buffer->gap_start_ptr
482 	|| str_start >= buffer->__gap_end)
486 	    (*buffer->gap_start_ptr - str_start) + (file->__bufp - __gap_end);
509 	    *buffer->gap_start_ptr; /* what if gap_start_ptr == &bufp ??? */
555     edit_buffer* buffer = bstr->buffer;  in edit_streambuf()  local
556     next = buffer->files;  in edit_streambuf()
557     buffer->files = this;  in edit_streambuf()
558     char* buf_ptr = bstr->start->ptr(buffer);  in edit_streambuf()
574     struct edit_buffer *buffer = cookie->str->buffer;
576     for (ptr = &buffer->files; *ptr != cookie; ptr = &(*ptr)->next) ;
578     disconnect_gap_from_file(buffer, cookie->file);
589     edit_streambuf **ptr = &str->buffer->files;  in ~edit_streambuf()
593     disconnect_gap_from_file(str->buffer);  in ~edit_streambuf()
620     struct edit_buffer *buf = str->buffer;  in edit_mark()
642 edit_buffer * edit_mark::buffer()  in buffer()  function in edit_mark
653     struct edit_buffer *buf = buffer();  in ~edit_mark()
662     ptrdiff_t delta = end->ptr(buffer) - start->ptr(buffer);  in length()
663     if (end->ptr(buffer) <= buffer->gap_start() ||  in length()
664 	start->ptr(buffer) >= buffer->gap_end())  in length()
666     return delta - buffer->gap_size();  in length()
674     start1 = start->ptr(buffer);  in copy_bytes()
675     if (end->ptr(buffer) <= buffer->gap_start()  in copy_bytes()
676 	|| start->ptr(buffer) >= buffer->gap_end()) {  in copy_bytes()
677 	len1 = end->ptr(buffer) - start1;  in copy_bytes()
682 	len1 = buffer->gap_start() - start1;  in copy_bytes()
683 	start2 = buffer->gap_end();  in copy_bytes()
684 	len2 = end->ptr(buffer) - start2;  in copy_bytes()
703     if (buffer == src->buffer /*&& ???*/) { /* overly conservative */  in assign()