Code to implement HTTP requests done. Also, rewrote str_to_int64, str_to_double

luprex/core/cpp/util.hpp

@@ -38,6 +38,19 @@ using LuaSourceVec = eng::vector<StringPair>;
 using LuaSourcePtr = std::unique_ptr<LuaSourceVec>;
 using HashValue = std::pair<uint64_t, uint64_t>;
 using IdVector = eng::vector<int64_t>;
+using OptionalInt64 = std::optional<int64_t>;
+
+// This value is sometimes used to represent 'bad integer'
+const int64_t BADINT64 = std::numeric_limits<int64_t>::min();
+
+// Test character class ignoring 'current locale'.
+inline bool ascii_isupper(char c) { return (c >= 'A') && (c <= 'Z'); }
+inline bool ascii_islower(char c) { return (c >= 'a') && (c <= 'z'); }
+inline bool ascii_isdigit(char c) { return (c >= '0') && (c <= '9'); }
+inline bool ascii_isalpha(char c) { return ascii_isupper(c) || ascii_islower(c); }
+inline bool ascii_isalnum(char c) { return ascii_isalpha(c) || ascii_isdigit(c); }
+eng::string ascii_tolower(const eng::string &c);
+eng::string ascii_toupper(const eng::string &c);
 
 // Return seconds elapsed, for profiling purposes.
 double profiling_clock();
@@ -99,28 +112,39 @@ eng::string toupper(eng::string input);
 bool has_prefix(const eng::string &s, const eng::string &prefix);
 bool has_suffix(const eng::string &s, const eng::string &suffix);
 
-// Return true if the string can be parsed as an integer.
-bool validinteger(const eng::string &value);
+// Check if numbers can be parsed as int64/double
+bool valid_int64(std::string_view v);
+bool valid_double(std::string_view v);
 
-// String to integer.  Returns errval if the number is not parseable.
-int64_t strtoint(const eng::string &value, int64_t errval);
-
-// String to double.  Returns NAN if the number is not parseable.
-double strtodouble(const eng::string &value);
+// Parse numbers as int64/double.  Returns errval on failure.
+int64_t str_to_int64(std::string_view v, int64_t errval = INT64_MIN);
+double str_to_double(std::string_view v, double errval = std::numeric_limits<double>::quiet_NaN());
 
 // Trim a string_view
 std::string_view sv_ltrim(std::string_view v);
 std::string_view sv_rtrim(std::string_view v);
 std::string_view sv_trim(std::string_view v);
 
+std::string_view sv_ltrim(std::string_view v, char c);
+std::string_view sv_rtrim(std::string_view v, char c);
+std::string_view sv_trim(std::string_view v, char c);
+
+// sv_is_null is different from checking for empty.
+inline bool sv_is_null(const std::string_view &v) { return v.data() == nullptr; }
+
+// Split a string view into stuff before and after separator.
+// If the separator doesn't occur, returns a null string view
+// and doesn't modify the source.
+std::string_view sv_split_one(std::string_view &source, char sep);
+
+// Read a line from a string_view.
+std::string_view sv_read_line(std::string_view &source);
+
 // Trim strings: left end, right end, both ends.
 eng::string ltrim(std::string_view s);
 eng::string rtrim(std::string_view s);
 eng::string trim(std::string_view s);
 
-// Read a line from a string_view
-std::string_view sv_read_line(std::string_view &source);
-
 // Calculate distance between two points
 double distance_squared(double x1, double y1, double x2, double y2);