Simplify regex-emacs by assuming Emacs syntax

* src/regex-emacs.c (reg_syntax_t)
(RE_BACKSLASH_ESCAPE_IN_LISTS, RE_BK_PLUS_QM)
(RE_CHAR_CLASSES, RE_CONTEXT_INDEP_ANCHORS)
(RE_CONTEXT_INDEP_OPS, RE_CONTEXT_INVALID_OPS)
(RE_DOT_NEWLINE, RE_DOT_NOT_NULL, RE_HAT_LISTS_NOT_NEWLINE)
(RE_INTERVALS, RE_LIMITED_OPS, RE_NEWLINE_ALT)
(RE_NO_BK_BRACES, RE_NO_BK_PARENS, RE_NO_BK_REFS)
(RE_NO_BK_VBAR, RE_NO_EMPTY_RANGES)
(RE_UNMATCHED_RIGHT_PAREN_ORD, RE_NO_POSIX_BACKTRACKING)
(RE_NO_GNU_OPS, RE_FRUGAL, RE_SHY_GROUPS)
(RE_NO_NEWLINE_ANCHOR, RE_SYNTAX_EMACS, RE_TRANSLATE_P):
Remove.  All uses removed and resulting code simplified.
(TRANSLATE): Treat nil as an absent translation table, not zero.
All uses changed.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/search.c b/src/search.c
index f758bb9304a..4e5a2530114 100644
--- a/src/search.c
+++ b/src/search.c
@@ -132,7 +132,7 @@ compile_pattern_1 (struct regexp_cache *cp, Lisp_Object pattern,
 
   eassert (!cp->busy);
   cp->regexp = Qnil;
-  cp->buf.translate = (! NILP (translate) ? translate : make_number (0));
+  cp->buf.translate = translate;
   cp->posix = posix;
   cp->buf.multibyte = STRING_MULTIBYTE (pattern);
   cp->buf.charset_unibyte = charset_unibyte;
@@ -238,7 +238,7 @@ compile_pattern (Lisp_Object pattern, struct re_registers *regp,
           && !cp->busy
           && STRING_MULTIBYTE (cp->regexp) == STRING_MULTIBYTE (pattern)
           && !NILP (Fstring_equal (cp->regexp, pattern))
-          && EQ (cp->buf.translate, (! NILP (translate) ? translate : make_number (0)))
+          && EQ (cp->buf.translate, translate)
           && cp->posix == posix
           && (EQ (cp->syntax_table, Qt)
               || EQ (cp->syntax_table, BVAR (current_buffer, syntax_table)))