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(ONE_MORE_BYTE_CHECK_MULTIBYTE): New arg RET. If SRC

Browse source 
is exhausted, return with RET.
(detect_coding_emacs_mule, detect_coding_iso2022)
(detect_coding_sjis, detect_coding_big5, detect_coding_utf_8)
(detect_coding_utf_16, detect_coding_ccl): Adjusted for the above
change.
This commit is contained in:
Kenichi Handa 2006-08-15 02:42:21 +00:00
parent a7acd30f0c
commit 8db1f9fa0c
2 changed files with 34 additions and 36 deletions
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61
src/coding.c
View file

@ -219,14 +219,15 @@ encode_coding_XXX (coding, source, destination, src_bytes, dst_bytes)
/* Like ONE_MORE_BYTE, but 8-bit bytes of data at SRC are in multibyte
form if MULTIBYTEP is nonzero. */
form if MULTIBYTEP is nonzero. In addition, if SRC is not less
than SRC_END, return with RET. */
#define ONE_MORE_BYTE_CHECK_MULTIBYTE(c1, multibytep) \
#define ONE_MORE_BYTE_CHECK_MULTIBYTE(c1, multibytep, ret) \
do { \
if (src >= src_end) \
{ \
coding->result = CODING_FINISH_INSUFFICIENT_SRC; \
goto label_end_of_loop; \
return ret; \
} \
c1 = *src++; \
if (multibytep && c1 == LEADING_CODE_8_BIT_CONTROL) \
@ -632,15 +633,15 @@ detect_coding_emacs_mule (src, src_end, multibytep)
while (1)
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep,
CODING_CATEGORY_MASK_EMACS_MULE);
if (composing)
{
if (c < 0xA0)
composing = 0;
else if (c == 0xA0)
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, 0);
c &= 0x7F;
}
else
@ -669,8 +670,6 @@ detect_coding_emacs_mule (src, src_end, multibytep)
}
}
}
label_end_of_loop:
return CODING_CATEGORY_MASK_EMACS_MULE;
}
@ -1425,9 +1424,9 @@ detect_coding_iso2022 (src, src_end, multibytep)
Lisp_Object safe_chars;
reg[0] = CHARSET_ASCII, reg[1] = reg[2] = reg[3] = -1;
while (mask && src < src_end)
while (mask)
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, mask & mask_found);
retry:
switch (c)
{
@ -1435,11 +1434,11 @@ detect_coding_iso2022 (src, src_end, multibytep)
if (inhibit_iso_escape_detection)
break;
single_shifting = 0;
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, mask & mask_found);
if (c >= '(' && c <= '/')
{
/* Designation sequence for a charset of dimension 1. */
ONE_MORE_BYTE_CHECK_MULTIBYTE (c1, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c1, multibytep, mask & mask_found);
if (c1 < ' ' || c1 >= 0x80
|| (charset = iso_charset_table[0][c >= ','][c1]) < 0)
/* Invalid designation sequence. Just ignore. */
@ -1449,13 +1448,14 @@ detect_coding_iso2022 (src, src_end, multibytep)
else if (c == '$')
{
/* Designation sequence for a charset of dimension 2. */
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, mask & mask_found);
if (c >= '@' && c <= 'B')
/* Designation for JISX0208.1978, GB2312, or JISX0208. */
reg[0] = charset = iso_charset_table[1][0][c];
else if (c >= '(' && c <= '/')
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c1, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c1, multibytep,
mask & mask_found);
if (c1 < ' ' || c1 >= 0x80
|| (charset = iso_charset_table[1][c >= ','][c1]) < 0)
/* Invalid designation sequence. Just ignore. */
@ -1630,7 +1630,8 @@ detect_coding_iso2022 (src, src_end, multibytep)
c = -1;
while (src < src_end)
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep,
mask & mask_found);
if (c < 0xA0)
break;
i++;
@ -1648,7 +1649,6 @@ detect_coding_iso2022 (src, src_end, multibytep)
break;
}
}
label_end_of_loop:
return (mask & mask_found);
}
@ -2919,20 +2919,18 @@ detect_coding_sjis (src, src_end, multibytep)
while (1)
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, CODING_CATEGORY_MASK_SJIS);
if (c < 0x80)
continue;
if (c == 0x80 || c == 0xA0 || c > 0xEF)
return 0;
if (c <= 0x9F || c >= 0xE0)
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, 0);
if (c < 0x40 || c == 0x7F || c > 0xFC)
return 0;
}
}
label_end_of_loop:
return CODING_CATEGORY_MASK_SJIS;
}
/* See the above "GENERAL NOTES on `detect_coding_XXX ()' functions".
@ -2951,17 +2949,15 @@ detect_coding_big5 (src, src_end, multibytep)
while (1)
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, CODING_CATEGORY_MASK_BIG5);
if (c < 0x80)
continue;
if (c < 0xA1 || c > 0xFE)
return 0;
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, 0);
if (c < 0x40 || (c > 0x7F && c < 0xA1) || c > 0xFE)
return 0;
}
label_end_of_loop:
return CODING_CATEGORY_MASK_BIG5;
}
/* See the above "GENERAL NOTES on `detect_coding_XXX ()' functions".
@ -2989,7 +2985,7 @@ detect_coding_utf_8 (src, src_end, multibytep)
while (1)
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, CODING_CATEGORY_MASK_UTF_8);
if (UTF_8_1_OCTET_P (c))
continue;
else if (UTF_8_2_OCTET_LEADING_P (c))
@ -3007,16 +3003,13 @@ detect_coding_utf_8 (src, src_end, multibytep)
do
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, 0);
if (!UTF_8_EXTRA_OCTET_P (c))
return 0;
seq_maybe_bytes--;
}
while (seq_maybe_bytes > 0);
}
label_end_of_loop:
return CODING_CATEGORY_MASK_UTF_8;
}
/* See the above "GENERAL NOTES on `detect_coding_XXX ()' functions".
@ -3045,15 +3038,13 @@ detect_coding_utf_16 (src, src_end, multibytep)
struct coding_system dummy_coding;
struct coding_system *coding = &dummy_coding;
ONE_MORE_BYTE_CHECK_MULTIBYTE (c1, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c2, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c1, multibytep, 0);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c2, multibytep, 0);
if ((c1 == 0xFF) && (c2 == 0xFE))
return CODING_CATEGORY_MASK_UTF_16_LE;
else if ((c1 == 0xFE) && (c2 == 0xFF))
return CODING_CATEGORY_MASK_UTF_16_BE;
label_end_of_loop:
return 0;
}
@ -3322,12 +3313,10 @@ detect_coding_ccl (src, src_end, multibytep)
valid = coding_system_table[CODING_CATEGORY_IDX_CCL]->spec.ccl.valid_codes;
while (1)
{
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep);
ONE_MORE_BYTE_CHECK_MULTIBYTE (c, multibytep, CODING_CATEGORY_MASK_CCL);
if (! valid[c])
return 0;
}
label_end_of_loop:
return CODING_CATEGORY_MASK_CCL;
}