better table print, order by/offset/limit improvements

clib/ml_string.h

@@ -0,0 +1,22 @@
+
+#pragma once
+
+#include <string>
+#include <regex>
+
+void replace_substring(std::string &src, const std::string &substr, const std::string &replacement);
+
+// Returns true if where contains regex
+bool regexp_search(const std::string &where, const std::string &regex_str);
+
+std::vector<std::string> regexp_strsplit(const std::string &string_to_split, const std::string &rgx_str);
+
+std::string string_lucase(std::string s, const std::string &strcase);
+
+std::string string_trim(std::string s, const std::string &chars_to_trim, const std::string &rltrim);
+
+std::string string_padd(const std::string & str, int pad_len, char fill_char, bool from_right);
+
+std::string string_substring(const std::string & str, long pos, long count);
+
+size_t string_find_substr(const std::string & str, const std::string & pattern, long pos);