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authorKenichi Handa <handa@m17n.org>1997-07-25 07:46:51 +0000
committerKenichi Handa <handa@m17n.org>1997-07-25 07:46:51 +0000
commit4dad0cbaf539f74948282a00546a001947b5c600 (patch)
tree68cbe4864db18ec3591b1a4e311093b45775a13f /src/coding.h
parent71a4b3e854d09ed68b568b2dd8d9166d238ce4f1 (diff)
downloademacs-4dad0cbaf539f74948282a00546a001947b5c600.tar.gz
(CODING_REQUIRE_TEXT_CONVERSION,
CODING_REQUIRE_EOL_CONVERSION, CODING_REQUIRE_CONVERSION): Deleted. (CODING_REQUIRE_NO_CONVERSION): New macro. (CODING_MAY_REQUIRE_NO_CONVERSION): New macro.
Diffstat (limited to 'src/coding.h')
-rw-r--r--src/coding.h29
1 files changed, 13 insertions, 16 deletions
diff --git a/src/coding.h b/src/coding.h
index 43d10e403f6..46002ad6255 100644
--- a/src/coding.h
+++ b/src/coding.h
@@ -309,22 +309,19 @@ struct coding_system
int carryover_size;
};
-/* Return 1 if the coding-system CODING requires conversion of
- representation of a visible character (text). */
-#define CODING_REQUIRE_TEXT_CONVERSION(coding) \
- ((coding)->type != coding_type_no_conversion \
- && (coding)->type != coding_type_emacs_mule)
-
-/* Return 1 if the coding-system CODING requires conversion of the
- format of end-of-line. */
-#define CODING_REQUIRE_EOL_CONVERSION(coding) \
- ((coding)->eol_type != CODING_EOL_UNDECIDED \
- && (coding)->eol_type != CODING_EOL_LF)
-
-/* Return 1 if the coding-system CODING requires some conversion. */
-#define CODING_REQUIRE_CONVERSION(coding) \
- (CODING_REQUIRE_TEXT_CONVERSION (coding) \
- || CODING_REQUIRE_EOL_CONVERSION (coding))
+/* Return 1 if coding system CODING never requires any code conversion. */
+#define CODING_REQUIRE_NO_CONVERSION(coding) \
+ (((coding)->type == coding_type_no_conversion \
+ || (coding)->type == coding_type_emacs_mule) \
+ && (coding)->eol_type == CODING_EOL_LF)
+
+/* Return 1 if coding system CODING may not require code conversion. */
+#define CODING_MAY_REQUIRE_NO_CONVERSION(coding) \
+ (((coding)->type == coding_type_no_conversion \
+ || (coding)->type == coding_type_emacs_mule \
+ || (coding)->type == coding_type_undecided) \
+ && ((coding)->eol_type == CODING_EOL_LF \
+ || (coding)->eol_type == CODING_EOL_UNDECIDED))
/* Index for each coding category in `coding_category_table' */
#define CODING_CATEGORY_IDX_EMACS_MULE 0