Rack/include/string.hpp

#pragma once
#include "common.hpp"


namespace rack {


/** Supplemental `std::string` functions
*/
namespace string {


/** Converts a UTF-16/32 string (depending on the size of wchar_t) to a UTF-8 string. */
std::string fromWstring(const std::wstring &s);
std::wstring toWstring(const std::string &s);
/** Converts a `printf()` format string and optional arguments into a std::string.
Remember that "%s" must reference a `char *`, so use `.c_str()` for `std::string`s, otherwise you might get binary garbage.
*/
std::string f(const char *format, ...);
/** Replaces all characters to lowercase letters */
std::string lowercase(const std::string &s);
/** Replaces all characters to uppercase letters */
std::string uppercase(const std::string &s);
/** Removes whitespace from beginning and end of string. */
std::string trim(const std::string &s);
/** Truncates and adds "..." to a string, not exceeding `len` characters */
std::string ellipsize(const std::string &s, size_t len);
std::string ellipsizePrefix(const std::string &s, size_t len);
bool startsWith(const std::string &str, const std::string &prefix);
bool endsWith(const std::string &str, const std::string &suffix);
/** Extracts the directory of the path.
Example: directory("dir/file.txt") // "dir"
Calls POSIX dirname().
*/
std::string directory(const std::string &path);
/** Extracts the filename of the path.
Example: directory("dir/file.txt") // "file.txt"
Calls POSIX basename().
*/
std::string filename(const std::string &path);
/** Extracts the portion of a filename without the extension.
Example: filenameBase("file.txt") // "file"
Note: Only works on filenames. Call filename(path) to get the filename of the path.
*/
std::string filenameBase(const std::string &filename);
/** Extracts the extension of a filename.
Example: filenameExtension("file.txt") // "txt"
Note: Only works on filenames. Call filename(path) to get the filename of the path.
*/
std::string filenameExtension(const std::string &filename);
/** Scores how well a query matches a string.
A score of 0 means no match.
The score is arbitrary and is only meaningful for sorting.
*/
float fuzzyScore(const std::string &s, const std::string &query);

struct CaseInsensitiveCompare {
	bool operator()(const std::string &a, const std::string &b) const {
		return lowercase(a) < lowercase(b);
	}
};


} // namespace string
} // namespace rack