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(Finsert_file_contents): If REPLACE, always do lseek.

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Exit main loop if INSERTED reaches TOTAL.
This commit is contained in:
Richard M. Stallman 1994-02-23 00:33:13 +00:00
parent 5170c9cbeb
commit a1d2b64a33
1 changed files with 29 additions and 12 deletions
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41
src/fileio.c
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@ -154,6 +154,15 @@ close_file_unwind (fd)
{
close (XFASTINT (fd));
}
/* Restore point, having saved it as a marker. */
restore_point_unwind (location)
Lisp_Object location;
{
SET_PT (marker_position (location));
Fset_marker (location, Qnil, Qnil);
}
Lisp_Object Qexpand_file_name;
Lisp_Object Qdirectory_file_name;
@ -2551,6 +2560,10 @@ and (2) it puts less data in the undo list.")
goto notfound;
}
/* Replacement should preserve point as it preserves markers. */
if (!NILP (replace))
record_unwind_protect (restore_point_unwind, Fpoint_marker ());
record_unwind_protect (close_file_unwind, make_number (fd));
#ifdef S_IFSOCK
@ -2623,7 +2636,7 @@ and (2) it puts less data in the undo list.")
if (same_at_start == ZV)
{
close (fd);
specpdl_ptr = specpdl + count;
specpdl_ptr--;
goto handled;
}
immediate_quit = 1;
@ -2670,6 +2683,8 @@ and (2) it puts less data in the undo list.")
XFASTINT (end) = st.st_size - (ZV - same_at_end);
/* Delete the nonmatching middle part of the buffer. */
Fdelete_region (make_number (same_at_start), make_number (same_at_end));
/* Insert from the file at the proper position. */
SET_PT (same_at_start);
}
total = XINT (end) - XINT (beg);
@ -2690,13 +2705,14 @@ and (2) it puts less data in the undo list.")
if (GAP_SIZE < total)
make_gap (total - GAP_SIZE);
if (XINT (beg) != 0)
if (XINT (beg) != 0 || !NILP (replace))
{
if (lseek (fd, XINT (beg), 0) < 0)
report_file_error ("Setting file position", Fcons (filename, Qnil));
}
while (1)
how_much = 0;
while (inserted < total)
{
int try = min (total - inserted, 64 << 10);
int this;
@ -2734,8 +2750,8 @@ and (2) it puts less data in the undo list.")
XFASTINT (current_buffer->buffer_file_type) = XFASTINT (code);
if (XFASTINT (current_buffer->buffer_file_type) == 0)
{
int reduced_size =
inserted - crlf_to_lf (inserted, &FETCH_CHAR (point - 1) + 1);
int reduced_size
= inserted - crlf_to_lf (inserted, &FETCH_CHAR (point - 1) + 1);
ZV -= reduced_size;
Z -= reduced_size;
GPT -= reduced_size;
@ -2756,8 +2772,8 @@ and (2) it puts less data in the undo list.")
close (fd);
/* Discard the unwind protect */
specpdl_ptr = specpdl + count;
/* Discard the unwind protect for closing the file. */
specpdl_ptr--;
if (how_much < 0)
error ("IO error reading %s: %s",
@ -2814,11 +2830,12 @@ and (2) it puts less data in the undo list.")
}
}
if (!NILP (val))
RETURN_UNGCPRO (val);
RETURN_UNGCPRO (Fcons (filename,
Fcons (make_number (inserted),
Qnil)));
if (NILP (val))
val = Fcons (filename,
Fcons (make_number (inserted),
Qnil));
RETURN_UNGCPRO (unbind_to (count, val));
}
static Lisp_Object build_annotations ();