1#ifndef LIBFILEZILLA_STRING_HEADER
2#define LIBFILEZILLA_STRING_HEADER
37typedef std::wstring_view native_string_view;
39#if defined(FZ_UNIX) || defined(FZ_MAC)
41typedef std::string_view native_string_view;
57template<
typename T,
typename std::enable_if_t<std::is_same_v<native_
string,
typename std::decay_t<T>>,
int> = 0>
68int FZ_PUBLIC_SYMBOL
stricmp(std::string_view
const& a, std::string_view
const& b);
69int FZ_PUBLIC_SYMBOL
stricmp(std::wstring_view
const& a, std::wstring_view
const& b);
88template<
typename Char>
90 if (c >=
'A' && c <=
'Z') {
91 return c + (
'a' -
'A');
97std::wstring::value_type FZ_PUBLIC_SYMBOL
tolower_ascii(std::wstring::value_type c);
100template<
typename Char>
102 if (c >=
'a' && c <=
'z') {
103 return c + (
'A' -
'a');
109std::wstring::value_type FZ_PUBLIC_SYMBOL
toupper_ascii(std::wstring::value_type c);
117std::string FZ_PUBLIC_SYMBOL str_toupper_ascii(std::string_view
const& s);
118std::wstring FZ_PUBLIC_SYMBOL str_toupper_ascii(std::wstring_view
const& s);
128 bool operator()(T
const& lhs, T
const& rhs)
const {
129 return std::lexicographical_compare(lhs.cbegin(), lhs.cend(), rhs.cbegin(), rhs.cend(),
130 [](
typename T::value_type
const& a,
typename T::value_type
const& b) {
131 return tolower_ascii(a) < tolower_ascii(b);
143 return std::equal(a.cbegin(), a.cend(), b.cbegin(), b.cend(),
144 [](
auto const& a,
auto const& b) {
145 return tolower_ascii(a) == tolower_ascii(b);
151 return std::equal(a.cbegin(), a.cend(), b.cbegin(), b.cend(),
152 [](
auto const& a,
auto const& b) {
153 return tolower_ascii(a) == tolower_ascii(b);
162std::wstring FZ_PUBLIC_SYMBOL
to_wstring(std::string_view
const& in);
169inline auto to_wstring(T && in) ->
decltype(std::wstring(std::forward<T>(in)))
171 return std::wstring(std::forward<T>(in));
175template<
typename Arg>
176inline typename std::enable_if<std::is_arithmetic_v<std::decay_t<Arg>>, std::wstring>::type
to_wstring(Arg && arg)
178 return std::to_wstring(std::forward<Arg>(arg));
196std::string FZ_PUBLIC_SYMBOL
to_string(std::wstring_view
const& in);
203inline auto to_string(T && in) ->
decltype(std::string(std::forward<T>(in)))
205 return std::string(std::forward<T>(in));
210template<
typename Arg>
211inline typename std::enable_if<std::is_arithmetic_v<std::decay_t<Arg>>, std::string>::type
to_string(Arg && arg)
213 return std::to_string(std::forward<Arg>(arg));
218template<
typename Char>
220 return std::char_traits<Char>::length(str);
230std::string FZ_PUBLIC_SYMBOL
to_utf8(std::string_view
const& in);
238std::string FZ_PUBLIC_SYMBOL
to_utf8(std::wstring_view
const& in);
241template<
typename String,
typename Arg>
242inline auto toString(Arg&& arg) ->
typename std::enable_if<std::is_same_v<String, std::string>,
decltype(
to_string(std::forward<Arg>(arg)))>::type
244 return to_string(std::forward<Arg>(arg));
247template<
typename String,
typename Arg>
248inline auto toString(Arg&& arg) ->
typename std::enable_if<std::is_same_v<String, std::wstring>,
decltype(
to_wstring(std::forward<Arg>(arg)))>::type
253#if !defined(fzT) || defined(DOXYGEN)
270template<
typename Char>
273template<>
constexpr inline char const*
choose_string(
char const* c,
wchar_t const*) {
return c; }
274template<>
constexpr inline wchar_t const*
choose_string(
char const*,
wchar_t const* w) {
return w; }
276#if !defined(fzS) || defined(DOXYGEN)
288#define fzS(Char, s) fz::choose_string<Char>(s, L ## s)
295std::string FZ_PUBLIC_SYMBOL
replaced_substrings(std::string_view
const& in, std::string_view
const& find, std::string_view
const& replacement);
296std::wstring FZ_PUBLIC_SYMBOL
replaced_substrings(std::wstring_view
const& in, std::wstring_view
const& find, std::wstring_view
const& replacement);
300std::wstring FZ_PUBLIC_SYMBOL
replaced_substrings(std::wstring_view
const& in,
wchar_t find,
wchar_t replacement);
306bool FZ_PUBLIC_SYMBOL
replace_substrings(std::string& in, std::string_view
const& find, std::string_view
const& replacement);
307bool FZ_PUBLIC_SYMBOL
replace_substrings(std::wstring& in, std::wstring_view
const& find, std::wstring_view
const& replacement);
311bool FZ_PUBLIC_SYMBOL
replace_substrings(std::wstring& in,
wchar_t find,
wchar_t replacement);
339template <
typename String,
typename Delims>
342 using view_type = std::basic_string_view<std::decay_t<decltype(std::declval<String>()[0])>>;
351 constexpr strtokenizer(String &&
string, Delims &&delims,
bool ignore_empty)
352 : string_(std::forward<String>(string))
353 , delims_(std::forward<Delims>(delims))
354 , ignore_empty_(ignore_empty)
357 using value_type =
const view_type;
358 using pointer = value_type*;
359 using reference = value_type&;
360 using size_type = std::size_t;
361 using difference_type = std::ptrdiff_t;
367 using iterator_category = std::input_iterator_tag;
368 using difference_type = strtokenizer::difference_type;
369 using value_type = strtokenizer::value_type;
370 using pointer = strtokenizer::pointer;
371 using reference = strtokenizer::reference;
373 constexpr bool operator !=(
sentinel)
const
378 constexpr bool operator ==(
sentinel)
const
383 constexpr bool operator ==(
iterator const& op)
const
385 return s_.size() == op.s_.size();
388 constexpr bool operator !=(
iterator const& op)
const
390 return s_.size() != op.s_.size();
393 constexpr value_type operator*()
const
395 return s_.substr(0, pos_);
401 if (pos_ != s_.size()) {
405 s_.remove_prefix(pos_);
407 pos_ = s_.find_first_of(t_->delims_);
409 if (pos_ == view_type::npos) {
414 if (pos_ != 0 || !t_->ignore_empty_) {
427 , s_(view_type(t_->string_))
428 , pos_(view_type::npos)
438 using const_value_type = value_type;
439 using const_pointer = pointer;
440 using const_reference = reference;
448 constexpr sentinel end()
const
453 constexpr const_iterator cbegin()
const
458 constexpr sentinel cend()
const
475template <
typename String,
typename Delims>
484std::vector<std::string> FZ_PUBLIC_SYMBOL
strtok(std::string_view
const& tokens, std::string_view
const& delims,
bool const ignore_empty =
true);
485std::vector<std::wstring> FZ_PUBLIC_SYMBOL
strtok(std::wstring_view
const& tokens, std::wstring_view
const& delims,
bool const ignore_empty =
true);
486inline auto FZ_PUBLIC_SYMBOL
strtok(std::string_view
const& tokens,
char const delim,
bool const ignore_empty =
true) {
487 return strtok(tokens, std::string_view(&delim, 1), ignore_empty);
489inline auto FZ_PUBLIC_SYMBOL
strtok(std::wstring_view
const& tokens,
wchar_t const delim,
bool const ignore_empty =
true) {
490 return strtok(tokens, std::wstring_view(&delim, 1), ignore_empty);
501std::vector<std::string_view> FZ_PUBLIC_SYMBOL
strtok_view(std::string_view
const& tokens, std::string_view
const& delims,
bool const ignore_empty =
true);
502std::vector<std::wstring_view> FZ_PUBLIC_SYMBOL
strtok_view(std::wstring_view
const& tokens, std::wstring_view
const& delims,
bool const ignore_empty =
true);
503inline auto FZ_PUBLIC_SYMBOL
strtok_view(std::string_view
const& tokens,
char const delim,
bool const ignore_empty =
true) {
504 return strtok_view(tokens, std::string_view(&delim, 1), ignore_empty);
506inline auto FZ_PUBLIC_SYMBOL
strtok_view(std::wstring_view
const& tokens,
wchar_t const delim,
bool const ignore_empty =
true) {
507 return strtok_view(tokens, std::wstring_view(&delim, 1), ignore_empty);
511template<
typename T,
typename String>
512bool to_integral_impl(String
const& s, T & v)
514 if constexpr (std::is_same_v<T, bool>) {
516 if (!to_integral_impl(s, w)) {
522 else if constexpr (std::is_enum_v<T>) {
523 return to_integral_impl<std::underlying_type_t<T>>(s,
reinterpret_cast<std::underlying_type_t<T>&
>(v));
528 auto it = s.cbegin();
529 if (it != s.cend() && (*it ==
'-' || *it ==
'+')) {
531 if constexpr (std::is_signed_v<T>) {
541 if (it == s.cend()) {
547 auto constexpr min = std::numeric_limits<T>::min();
548 auto constexpr min10 = min / 10;
549 for (; it != s.cend(); ++it) {
551 if (c <
'0' || c >
'9') {
558 auto digit = -
static_cast<T
>(c -
'0');
559 if (min - v > digit) {
566 auto constexpr max = std::numeric_limits<T>::max();
567 auto constexpr max10 = max / 10;
568 for (; it != s.cend(); ++it) {
570 if (c <
'0' || c >
'9') {
577 auto digit =
static_cast<T
>(c -
'0');
578 if (max - v < digit) {
592 if (!to_integral_impl<T>(s, out)) {
599T
to_integral(std::wstring_view
const& s, T
const errorval = T()) {
601 if (!to_integral_impl<T>(s, out)) {
607template<
typename T,
typename StringType>
608T
to_integral(std::basic_string_view<StringType>
const& s, T
const errorval = T()) {
610 if (!to_integral_impl<T>(s, out)) {
619 std::optional<T> ret;
621 if (to_integral_impl<T>(s, out)) {
629 std::optional<T> ret;
631 if (to_integral_impl<T>(s, out)) {
637template<
typename T,
typename StringType>
638std::optional<T>
to_integral_o(std::basic_string_view<StringType>
const& s) {
639 std::optional<T> ret;
641 if (to_integral_impl<T>(s, out)) {
649template<
typename String>
651 for (
auto const& c : s) {
652 if (
static_cast<std::make_unsigned_t<typename String::value_type>
>(c) > 127) {
661template<
typename String,
typename Chars>
662void trim_impl(String & s, Chars
const& chars,
bool fromLeft,
bool fromRight) {
663 size_t const first = fromLeft ? s.find_first_not_of(chars) : 0;
664 if (first == String::npos) {
669 size_t const last = fromRight ? s.find_last_not_of(chars) : s.size();
670 if (last == String::npos) {
676 s = s.substr(first, last - first + 1);
680inline std::string FZ_PUBLIC_SYMBOL
trimmed(std::string_view s, std::string_view
const& chars =
" \r\n\t",
bool fromLeft =
true,
bool fromRight =
true)
682 trim_impl(s, chars, fromLeft, fromRight);
683 return std::string(s);
686inline std::wstring FZ_PUBLIC_SYMBOL
trimmed(std::wstring_view s, std::wstring_view
const& chars = L
" \r\n\t",
bool fromLeft =
true,
bool fromRight =
true)
688 trim_impl(s, chars, fromLeft, fromRight);
689 return std::wstring(s);
692inline std::string FZ_PUBLIC_SYMBOL ltrimmed(std::string_view s, std::string_view
const& chars =
" \r\n\t")
694 trim_impl(s, chars,
true,
false);
695 return std::string(s);
698inline std::wstring FZ_PUBLIC_SYMBOL ltrimmed(std::wstring_view s, std::wstring_view
const& chars = L
" \r\n\t")
700 trim_impl(s, chars,
true,
false);
701 return std::wstring(s);
704inline std::string FZ_PUBLIC_SYMBOL rtrimmed(std::string_view s, std::string_view
const& chars =
" \r\n\t")
706 trim_impl(s, chars,
false,
true);
707 return std::string(s);
710inline std::wstring FZ_PUBLIC_SYMBOL rtrimmed(std::wstring_view s, std::wstring_view
const& chars = L
" \r\n\t")
712 trim_impl(s, chars,
false,
true);
713 return std::wstring(s);
718template<
typename String,
typename std::enable_if_t<std::is_same_v<
typename String::value_type,
char>,
int> = 0>
719inline void trim(String & s, std::string_view
const& chars =
" \r\n\t",
bool fromLeft =
true,
bool fromRight =
true)
721 trim_impl(s, chars, fromLeft, fromRight);
724template<
typename String,
typename std::enable_if_t<std::is_same_v<
typename String::value_type,
wchar_t>,
int> = 0>
725inline void trim(String & s, std::wstring_view
const& chars = L
" \r\n\t",
bool fromLeft =
true,
bool fromRight =
true)
727 trim_impl(s, chars, fromLeft, fromRight);
730template<
typename String,
typename std::enable_if_t<std::is_same_v<
typename String::value_type,
char>,
int> = 0>
731inline void ltrim(String& s, std::string_view
const& chars =
" \r\n\t")
733 trim_impl(s, chars,
true,
false);
736template<
typename String,
typename std::enable_if_t<std::is_same_v<
typename String::value_type,
wchar_t>,
int> = 0>
737inline void ltrim(String& s, std::wstring_view
const& chars = L
" \r\n\t")
739 trim_impl(s, chars,
true,
false);
742template<
typename String,
typename std::enable_if_t<std::is_same_v<
typename String::value_type,
char>,
int> = 0>
743inline void rtrim(String& s, std::string_view
const& chars =
" \r\n\t")
745 trim_impl(s, chars,
false,
true);
748template<
typename String,
typename std::enable_if_t<std::is_same_v<
typename String::value_type,
wchar_t>,
int> = 0>
749inline void rtrim(String & s, std::wstring_view
const& chars = L
" \r\n\t")
751 trim_impl(s, chars,
false,
true);
758template<
bool insensitive_ascii = false,
typename String>
761 if (beginning.size() > s.size()) {
764 if constexpr (insensitive_ascii) {
765 return std::equal(beginning.begin(), beginning.end(), s.begin(), [](
typename String::value_type
const& a,
typename String::value_type
const& b) {
766 return tolower_ascii(a) == tolower_ascii(b);
770 return std::equal(beginning.begin(), beginning.end(), s.begin());
778template<
bool insensitive_ascii = false,
typename String>
781 if (ending.size() > s.size()) {
785 if constexpr (insensitive_ascii) {
786 return std::equal(ending.rbegin(), ending.rend(), s.rbegin(), [](
typename String::value_type
const& a,
typename String::value_type
const& b) {
787 return tolower_ascii(a) == tolower_ascii(b);
791 return std::equal(ending.rbegin(), ending.rend(), s.rbegin());
860inline native_string to_native_from_utf8(std::string_view s) {
The buffer class is a simple buffer where data can be appended at the end and consumed at the front....
Definition buffer.hpp:27
Small class to return filesystem errors.
Definition fsresult.hpp:26
Container-like class that can be used to iterate over tokens in a string.
Definition string.hpp:341
constexpr strtokenizer(String &&string, Delims &&delims, bool ignore_empty)
strtokenizer class constructor.
Definition string.hpp:351
Sets some global macros and further includes string.hpp.
The namespace used by libfilezilla.
Definition apply.hpp:17
size_t strlen(Char const *str)
Returns length of 0-terminated character sequence. Works with both narrow and wide-characters.
Definition string.hpp:219
Char toupper_ascii(Char c)
Converts ASCII lowercase characters to uppercase as if C-locale is used.
Definition string.hpp:101
bool utf16le_to_utf8_append(std::string &result, std::string_view data, uint32_t &state)
Just as utf16be_to_utf8_append but for little-endian UTF-16.
std::vector< std::string_view > strtok_view(std::string_view const &tokens, std::string_view const &delims, bool const ignore_empty=true)
Tokenizes string.
Char tolower_ascii(Char c)
Converts ASCII uppercase characters to lowercase as if C-locale is used.
Definition string.hpp:89
bool str_is_ascii(String const &s)
Returns true iff the string only has characters in the 7-bit ASCII range.
Definition string.hpp:650
strtokenizer(String &&string, Delims &&delims, bool ignore_empty) -> strtokenizer< String, Delims >
strtokenizer class construction-guide.
auto toString(Arg &&arg) -> typename std::enable_if< std::is_same_v< String, std::string >, decltype(to_string(std::forward< Arg >(arg)))>::type
Calls either fz::to_string or fz::to_wstring depending on the passed template argument.
Definition string.hpp:242
constexpr Char const * choose_string(char const *c, wchar_t const *w)
Returns the function argument of the type matching the template argument.
void trim(String &s, std::string_view const &chars=" \r\n\t", bool fromLeft=true, bool fromRight=true)
Remove all leading and trailing whitespace from string.
Definition string.hpp:719
bool is_valid_utf8(std::string_view s)
Verifies that the input data is valid UTF-8.
std::string trimmed(std::string_view s, std::string_view const &chars=" \r\n\t", bool fromLeft=true, bool fromRight=true)
Return passed string with all leading and trailing whitespace removed.
Definition string.hpp:680
std::wstring to_wstring_from_utf8(std::string_view const &in)
Converts from std::string in UTF-8 into std::wstring.
std::string normalize_hyphens(std::string_view const &in)
std::wstring native_string
A string in the system's native character type and encoding. Note: This typedef changes depending on...
Definition string.hpp:36
bool utf16be_to_utf8_append(std::string &result, std::string_view data, uint32_t &state)
Converts from UTF-16-BE and appends it to the passed string.
std::string to_utf8(std::string_view const &in)
Converts from std::string in native encoding into std::string in UTF-8.
bool ends_with(String const &s, String const &ending)
Tests whether the first string ends with the second string.
Definition string.hpp:779
bool equal_insensitive_ascii(std::string_view a, std::string_view b)
Locale-insensitive stricmp.
Definition string.hpp:141
std::vector< std::string > strtok(std::string_view const &tokens, std::string_view const &delims, bool const ignore_empty=true)
Tokenizes string.
std::string to_string(std::wstring_view const &in)
Converts from std::wstring into std::string in system encoding.
std::wstring to_wstring(std::string_view const &in)
Converts from std::string in system encoding into std::wstring.
std::optional< T > to_integral_o(std::string_view const &s)
Converts string to integral type T. If string is not convertible, nullopt.
Definition string.hpp:618
std::string replaced_substrings(std::string_view const &in, std::string_view const &find, std::string_view const &replacement)
Returns in with all occurrences of find in the input string replaced with replacement.
bool starts_with(String const &s, String const &beginning)
Tests whether the first string starts with the second string.
Definition string.hpp:759
bool replace_substrings(std::string &in, std::string_view const &find, std::string_view const &replacement)
Modifies in, replacing all occurrences of find with replacement.
int stricmp(std::string_view const &a, std::string_view const &b)
Locale-sensitive stricmp.
std::string str_tolower_ascii(std::string_view const &s)
tr_tolower_ascii does for strings what tolower_ascii does for individual characters
void unicode_codepoint_to_utf8_append(std::string &result, uint32_t codepoint)
Encodes a valid Unicode codepoint as UTF-8 and appends it to the passed string.
native_string to_native(std::string_view const &in)
Converts std::string to native_string.
T to_integral(std::string_view const &s, T const errorval=T())
Converts string to integral type T. If string is not convertible, errorval is returned.
Definition string.hpp:590
Comparator to be used for std::map for case-insensitive keys.
Definition string.hpp:126
Definition string.hpp:366
Definition string.hpp:363