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| author | YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp> | 2009-06-19 08:39:33 +0000 |
|---|---|---|
| committer | YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp> | 2009-06-19 08:39:33 +0000 |
| commit | d9dff77516c47770a8d0b58fa6ca99ca6e91d037 (patch) | |
| tree | 921eb4693061a5df09dad63ec34eb424950a1613 | |
| parent | f4d4dce437a4afd319c956ca7c7905ceb542b850 (diff) | |
| download | emacs-d9dff77516c47770a8d0b58fa6ca99ca6e91d037.tar.gz | |
(Ffind_coding_systems_region_internal): Cache checked characters.
| -rw-r--r-- | src/coding.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/coding.c b/src/coding.c index e2a328fd908..3fc43df636b 100644 --- a/src/coding.c +++ b/src/coding.c @@ -8640,7 +8640,7 @@ DEFUN ("find-coding-systems-region-internal", EMACS_INT start_byte, end_byte; const unsigned char *p, *pbeg, *pend; int c; - Lisp_Object tail, elt; + Lisp_Object tail, elt, work_table; if (STRINGP (start)) { @@ -8698,6 +8698,7 @@ DEFUN ("find-coding-systems-region-internal", while (p < pend && ASCII_BYTE_P (*p)) p++; while (p < pend && ASCII_BYTE_P (*(pend - 1))) pend--; + work_table = Fmake_char_table (Qnil, Qnil); while (p < pend) { if (ASCII_BYTE_P (*p)) @@ -8705,6 +8706,9 @@ DEFUN ("find-coding-systems-region-internal", else { c = STRING_CHAR_ADVANCE (p); + if (!NILP (char_table_ref (work_table, c))) + /* This character was already checked. Ignore it. */ + continue; charset_map_loaded = 0; for (tail = coding_attrs_list; CONSP (tail);) @@ -8736,6 +8740,7 @@ DEFUN ("find-coding-systems-region-internal", p = pbeg + p_offset; pend = pbeg + pend_offset; } + char_table_set (work_table, c, Qt); } } |