diff options
Diffstat (limited to '')
-rw-r--r-- | sql/sql_string.cc | 47 |
1 files changed, 33 insertions, 14 deletions
diff --git a/sql/sql_string.cc b/sql/sql_string.cc index 25521bb3..f5edb1a5 100644 --- a/sql/sql_string.cc +++ b/sql/sql_string.cc @@ -1145,26 +1145,45 @@ bool String::append_for_single_quote(const char *st, size_t len) int chlen; for (; st < end; st++) { - switch (*st) + char ch2= (char) (uchar) escaped_wc_for_single_quote((uchar) *st); + if (ch2) { - case '\\': APPEND(STRING_WITH_LEN("\\\\")); break; - case '\0': APPEND(STRING_WITH_LEN("\\0")); break; - case '\'': APPEND(STRING_WITH_LEN("\\'")); break; - case '\n': APPEND(STRING_WITH_LEN("\\n")); break; - case '\r': APPEND(STRING_WITH_LEN("\\r")); break; - case '\032': APPEND(STRING_WITH_LEN("\\Z")); break; - default: if ((chlen=charset()->charlen(st, end)) > 0) - { - APPEND(st, chlen); - st+= chlen-1; - } - else - APPEND(*st); + if (append('\\') || append(ch2)) + return true; + continue; } + if ((chlen= charset()->charlen(st, end)) > 0) + { + APPEND(st, chlen); + st+= chlen-1; + } + else + APPEND(*st); } return 0; } + +bool String::append_for_single_quote_using_mb_wc(const char *src, + size_t length, + CHARSET_INFO *cs) +{ + DBUG_ASSERT(&my_charset_bin != charset()); + DBUG_ASSERT(&my_charset_bin != cs); + const uchar *str= (const uchar *) src; + const uchar *end= (const uchar *) src + length; + int chlen; + my_wc_t wc; + for ( ; (chlen= cs->cset->mb_wc(cs, &wc, str, end)) > 0; str+= chlen) + { + my_wc_t wc2= escaped_wc_for_single_quote(wc); + if (wc2 ? (append_wc('\\') || append_wc(wc2)) : append_wc(wc)) + return true; + } + return false; +} + + void String::print(String *str) const { str->append_for_single_quote(Ptr, str_length); |