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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#ifndef cmStringAlgorithms_h
#define cmStringAlgorithms_h
#include "cmConfigure.h" // IWYU pragma: keep
#include "cmRange.h"
#include "cm_string_view.hxx"
#include <algorithm>
#include <iterator>
#include <sstream>
#include <string.h>
#include <string>
#include <utility>
#include <vector>
typedef cmRange<std::vector<std::string>::const_iterator> cmStringRange;
struct cmStrCmp
{
cmStrCmp(const char* test)
: m_test(test)
{
}
cmStrCmp(std::string test)
: m_test(std::move(test))
{
}
bool operator()(const std::string& input) const { return m_test == input; }
bool operator()(const char* input) const
{
return strcmp(input, m_test.c_str()) == 0;
}
private:
const std::string m_test;
};
template <typename Range>
std::string cmJoin(Range const& r, const char* delimiter)
{
if (r.empty()) {
return std::string();
}
std::ostringstream os;
typedef typename Range::value_type ValueType;
typedef typename Range::const_iterator InputIt;
const InputIt first = r.begin();
InputIt last = r.end();
--last;
std::copy(first, last, std::ostream_iterator<ValueType>(os, delimiter));
os << *last;
return os.str();
}
template <typename Range>
std::string cmJoin(Range const& r, std::string const& delimiter)
{
return cmJoin(r, delimiter.c_str());
}
template <typename Range>
std::string cmWrap(std::string const& prefix, Range const& r,
std::string const& suffix, std::string const& sep)
{
if (r.empty()) {
return std::string();
}
return prefix + cmJoin(r, suffix + sep + prefix) + suffix;
}
template <typename Range>
std::string cmWrap(char prefix, Range const& r, char suffix,
std::string const& sep)
{
return cmWrap(std::string(1, prefix), r, std::string(1, suffix), sep);
}
/** Returns true if string @a str starts with the character @a prefix. **/
inline bool cmHasPrefix(cm::string_view str, char prefix)
{
return !str.empty() && (str.front() == prefix);
}
/** Returns true if string @a str starts with string @a prefix. **/
inline bool cmHasPrefix(cm::string_view str, cm::string_view prefix)
{
return str.compare(0, prefix.size(), prefix) == 0;
}
/** Returns true if string @a str starts with string @a prefix. **/
template <size_t N>
inline bool cmHasLiteralPrefix(cm::string_view str, const char (&prefix)[N])
{
return cmHasPrefix(str, cm::string_view(prefix, N - 1));
}
/** Returns true if string @a str ends with the character @a suffix. **/
inline bool cmHasSuffix(cm::string_view str, char suffix)
{
return !str.empty() && (str.back() == suffix);
}
/** Returns true if string @a str ends with string @a suffix. **/
inline bool cmHasSuffix(cm::string_view str, cm::string_view suffix)
{
return str.size() >= suffix.size() &&
str.compare(str.size() - suffix.size(), suffix.size(), suffix) == 0;
}
/** Returns true if string @a str ends with string @a suffix. **/
template <size_t N>
inline bool cmHasLiteralSuffix(cm::string_view str, const char (&suffix)[N])
{
return cmHasSuffix(str, cm::string_view(suffix, N - 1));
}
/** Removes an existing suffix character of from the string @a str. **/
inline void cmStripSuffixIfExists(std::string& str, char suffix)
{
if (cmHasSuffix(str, suffix)) {
str.pop_back();
}
}
/** Removes an existing suffix string of from the string @a str. **/
inline void cmStripSuffixIfExists(std::string& str, cm::string_view suffix)
{
if (cmHasSuffix(str, suffix)) {
str.resize(str.size() - suffix.size());
}
}
#endif
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