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(Finsert_file_contents): Use new macros

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CODING_MAY_REQUIRE_NO_CONVERSION and
CODING_MAY_REQUIRE_NO_CONVERSION.
(Fwrite_region): Correct the logic for deciding coding system.
This commit is contained in:
Kenichi Handa 1997-07-25 07:46:51 +00:00
parent b34fe18227
commit 70ec432868
1 changed files with 15 additions and 17 deletions
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32
src/fileio.c
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@ -3179,11 +3179,7 @@ This does code conversion according to the value of\n\
But if we discover the need for conversion, we give up on this method
and let the following if-statement handle the replace job. */
if (!NILP (replace)
&& (! CODING_REQUIRE_CONVERSION (&coding)
|| (coding.type == coding_type_undecided
&& ! CODING_REQUIRE_EOL_CONVERSION (&coding))
|| (coding.eol_type == CODING_EOL_UNDECIDED
&& ! CODING_REQUIRE_TEXT_CONVERSION (&coding))))
&& CODING_MAY_REQUIRE_NO_CONVERSION (&coding))
{
int same_at_start = BEGV;
int same_at_end = ZV;
@ -3218,7 +3214,8 @@ This does code conversion according to the value of\n\
if (coding.type == coding_type_undecided)
detect_coding (&coding, buffer, nread);
if (coding.type != coding_type_undecided
&& CODING_REQUIRE_TEXT_CONVERSION (&coding))
&& coding.type != coding_type_no_conversion
&& coding.type != coding_type_emacs_mule)
/* We found that the file should be decoded somehow.
Let's give up here. */
{
@ -3229,7 +3226,7 @@ This does code conversion according to the value of\n\
if (coding.eol_type == CODING_EOL_UNDECIDED)
detect_eol (&coding, buffer, nread);
if (coding.eol_type != CODING_EOL_UNDECIDED
&& CODING_REQUIRE_EOL_CONVERSION (&coding))
&& coding.eol_type != CODING_EOL_LF)
/* We found that the format of eol should be decoded.
Let's give up here. */
{
@ -3304,7 +3301,7 @@ This does code conversion according to the value of\n\
if (same_at_end > same_at_start
&& FETCH_BYTE (same_at_end - 1) >= 0200
&& ! NILP (current_buffer->enable_multibyte_characters)
&& CODING_REQUIRE_CONVERSION (&coding))
&& ! CODING_REQUIRE_NO_CONVERSION (&coding))
giveup_match_end = 1;
break;
}
@ -3398,7 +3395,7 @@ This does code conversion according to the value of\n\
how_much += this;
if (CODING_REQUIRE_CONVERSION (&coding))
if (! CODING_REQUIRE_NO_CONVERSION (&coding))
{
int require, produced, consumed;
@ -3543,9 +3540,9 @@ This does code conversion according to the value of\n\
{
/* try is reserved in some compilers (Microsoft C) */
int trytry = min (total - how_much, READ_BUF_SIZE - unprocessed);
char *destination = (CODING_REQUIRE_CONVERSION (&coding)
? read_buf + unprocessed
: (char *) (POS_ADDR (PT + inserted - 1) + 1));
char *destination = (CODING_REQUIRE_NO_CONVERSION (&coding)
? (char *) (POS_ADDR (PT + inserted - 1) + 1)
: read_buf + unprocessed);
int this;
/* Allow quitting out of the actual I/O. */
@ -3568,7 +3565,7 @@ This does code conversion according to the value of\n\
if (! not_regular)
how_much += this;
if (CODING_REQUIRE_CONVERSION (&coding))
if (! CODING_REQUIRE_NO_CONVERSION (&coding))
{
int require, produced, consumed;
@ -3831,9 +3828,10 @@ to the file, instead of any buffer contents, and END is ignored.")
val = Qnil;
else if (!NILP (Vcoding_system_for_write))
val = Vcoding_system_for_write;
else if (NILP (current_buffer->enable_multibyte_characters) ||
! NILP (Fsymbol_value (Qbuffer_file_coding_system)))
val = Fsymbol_value (Qbuffer_file_coding_system);
else if (NILP (current_buffer->enable_multibyte_characters))
val = (NILP (Flocal_variable_p (Qbuffer_file_coding_system))
? Qnil
: Fsymbol_value (Qbuffer_file_coding_system));
else
{
Lisp_Object args[7], coding_systems;
@ -3842,7 +3840,7 @@ to the file, instead of any buffer contents, and END is ignored.")
args[3] = filename, args[4] = append, args[5] = visit,
args[6] = lockname;
coding_systems = Ffind_operation_coding_system (7, args);
val = (CONSP (coding_systems)
val = (CONSP (coding_systems) && !NILP (XCONS (coding_systems)->cdr)
? XCONS (coding_systems)->cdr
: current_buffer->buffer_file_coding_system);
}