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Fix bug#16286 by the different way than 2014-01-26T00:32:30Z!eggert@cs.ucla.edu to preserve the code detection behavior of 24.3.

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This commit is contained in:
Kenichi Handa 2014-01-29 22:21:25 +09:00
parent 4988180d71
commit 52840a9cc8
4 changed files with 20 additions and 4 deletions
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13
src/ChangeLog
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@ -1,3 +1,16 @@
2014-01-27 K. Handa <handa@gnu.org>
Fix bug#16286 by the different way than revno:116158 to preserve
the code detection behavior of 24.3.
* coding.h (struct coding_system): New member detected_utf8_bytes.
* coding.c (detect_coding_utf_8): Set coding->detected_utf8_bytes.
(decode_coding_gap): Use short cut for UTF-8 file reading only
when coding->detected_utf8_bytes equals to coding->src_bytes.
* fileio.c (Finsert_file_contents): Cancel the previous change.
2014-01-26 Jan Djärv <jan.h.d@swipnet.se>
* xterm.c (x_focus_changed): Check for non-X terminal-frame (Bug#16540)

6
src/coding.c
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@ -1300,6 +1300,7 @@ detect_coding_utf_8 (struct coding_system *coding,
means that we found a valid non-ASCII characters. */
detect_info->found |= CATEGORY_MASK_UTF_8_AUTO | CATEGORY_MASK_UTF_8_NOSIG;
}
coding->detected_utf8_bytes = src_base - coding->source;
coding->detected_utf8_chars = nchars;
return 1;
}
@ -7890,7 +7891,7 @@ decode_coding_gap (struct coding_system *coding,
coding->dst_multibyte = ! NILP (BVAR (current_buffer, enable_multibyte_characters));
coding->head_ascii = -1;
coding->detected_utf8_chars = -1;
coding->detected_utf8_bytes = coding->detected_utf8_chars = -1;
coding->eol_seen = EOL_SEEN_NONE;
if (CODING_REQUIRE_DETECTION (coding))
detect_coding (coding);
@ -7907,7 +7908,8 @@ decode_coding_gap (struct coding_system *coding,
if (chars != bytes)
{
/* There exists a non-ASCII byte. */
if (EQ (CODING_ATTR_TYPE (attrs), Qutf_8))
if (EQ (CODING_ATTR_TYPE (attrs), Qutf_8)
&& coding->detected_utf8_bytes == coding->src_bytes)
{
if (coding->detected_utf8_chars >= 0)
chars = coding->detected_utf8_chars;

4
src/coding.h
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@ -468,7 +468,9 @@ struct coding_system
the eol format. */
ptrdiff_t head_ascii;
ptrdiff_t detected_utf8_chars;
/* How many bytes/chars at the source are detected as valid utf-8
sequence. Set by detect_coding_utf_8. */
ptrdiff_t detected_utf8_bytes, detected_utf8_chars;
/* Used internally in coding.c. See the comment of detect_ascii. */
int eol_seen;

1
src/fileio.c
View file

@ -4298,7 +4298,6 @@ by calling `format-decode', which see. */)
Z_BYTE -= inserted;
ZV -= inserted;
Z -= inserted;
coding.mode |= CODING_MODE_LAST_BLOCK;
decode_coding_gap (&coding, inserted, inserted);
inserted = coding.produced_char;
coding_system = CODING_ID_NAME (coding.id);