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(coding_type): New member coding_type_raw_text.

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(CODING_EOL_INCONSISTENT): New macro.
(CODING_REQUIRE_NO_CONVERSION): Check also coding_type_raw_text.
(CODING_MAY_REQUIRE_NO_CONVERSION): Likewise.
(CODING_CATEGORY_IDX_RAW_TEXT): New macro.
(CODING_CATEGORY_MASK_RAW_TEXT): New macro.
This commit is contained in:
Kenichi Handa
1997-08-28 10:51:12 +00:00
parent 93f4fb5964
commit e80de6b18f
1 changed files with 22 additions and 11 deletions
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33
src/coding.h
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@@ -234,8 +234,12 @@ enum coding_type
coding_type_iso2022, /* Any coding system of ISO2022
variants. */
coding_type_big5, /* BIG5 coding system for Chinese. */
coding_type_ccl /* The coding system of which decoder
coding_type_ccl, /* The coding system of which decoder
and encoder are written in CCL. */
coding_type_raw_text /* A coding system for a text
containing ramdom 8-bit code which
does not require code conversion
except for end-of-line format. */
};
/* Formats of end-of-line. */
@@ -246,6 +250,9 @@ enum coding_type
#define CODING_EOL_CR 2 /* Carriage-return only. */
#define CODING_EOL_UNDECIDED 3 /* This value is used to denote the
eol-type is not yet decided. */
#define CODING_EOL_INCONSISTENT 4 /* This value is used to denote the
eol-type is not consistent
through the file. */
/* Character composition status while encoding/decoding. */
#define COMPOSING_NO 0 /* not composing */
@@ -330,17 +337,19 @@ struct coding_system
/* 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)
((coding)->type == coding_type_no_conversion \
|| (((coding)->type == coding_type_emacs_mule \
|| (coding)->type == coding_type_raw_text) \
&& (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))
((coding)->type == coding_type_no_conversion \
|| (((coding)->type == coding_type_emacs_mule \
|| (coding)->type == coding_type_undecided \
|| (coding)->type == coding_type_raw_text) \
&& ((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
@@ -351,8 +360,9 @@ struct coding_system
#define CODING_CATEGORY_IDX_ISO_7_ELSE 5
#define CODING_CATEGORY_IDX_ISO_8_ELSE 6
#define CODING_CATEGORY_IDX_BIG5 7
#define CODING_CATEGORY_IDX_BINARY 8
#define CODING_CATEGORY_IDX_MAX 9
#define CODING_CATEGORY_IDX_RAW_TEXT 8
#define CODING_CATEGORY_IDX_BINARY 9
#define CODING_CATEGORY_IDX_MAX 10
/* Definitions of flag bits returned by the function
detect_coding_mask (). */
@@ -363,6 +373,7 @@ struct coding_system
#define CODING_CATEGORY_MASK_ISO_8_2 (1 << CODING_CATEGORY_IDX_ISO_8_2)
#define CODING_CATEGORY_MASK_ISO_7_ELSE (1 << CODING_CATEGORY_IDX_ISO_7_ELSE)
#define CODING_CATEGORY_MASK_ISO_8_ELSE (1 << CODING_CATEGORY_IDX_ISO_8_ELSE)
#define CODING_CATEGORY_MASK_RAW_TEXT (1 << CODING_CATEGORY_IDX_RAW_TEXT)
#define CODING_CATEGORY_MASK_BIG5 (1 << CODING_CATEGORY_IDX_BIG5)
#define CODING_CATEGORY_MASK_BINARY (1 << CODING_CATEGORY_IDX_BINARY)