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/*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** String utilities
* @file
*/
#include <cstddef>
#include <cstring>
#include <cctype>
#include <stdexcept>
#include "str-utils.h"
#ifdef _WIN32
#include <locale>
#include <codecvt>
#endif
using std::size_t;
using std::strlen;
namespace rnp {
char *
strip_eol(char *s)
{
size_t len = strlen(s);
while ((len > 0) && ((s[len - 1] == '\n') || (s[len - 1] == '\r'))) {
s[--len] = '\0';
}
return s;
}
bool
strip_eol(std::string &s)
{
size_t len = s.size();
while (len && ((s[len - 1] == '\n') || (s[len - 1] == '\r'))) {
len--;
}
if (len == s.size()) {
return false;
}
s.resize(len);
return true;
}
bool
is_blank_line(const char *line, size_t len)
{
for (size_t i = 0; i < len && line[i]; i++) {
if (line[i] != ' ' && line[i] != '\t' && line[i] != '\r') {
return false;
}
}
return true;
}
bool
str_case_eq(const char *s1, const char *s2)
{
while (*s1 && *s2) {
if (std::tolower(*s1) != std::tolower(*s2)) {
return false;
}
s1++;
s2++;
}
return !*s1 && !*s2;
}
bool
str_case_eq(const std::string &s1, const std::string &s2)
{
if (s1.size() != s2.size()) {
return false;
}
return str_case_eq(s1.c_str(), s2.c_str());
}
static size_t
hex_prefix_len(const std::string &str)
{
if ((str.length() >= 2) && (str[0] == '0') && ((str[1] == 'x') || (str[1] == 'X'))) {
return 2;
}
return 0;
}
bool
is_hex(const std::string &s)
{
for (size_t i = hex_prefix_len(s); i < s.length(); i++) {
auto &ch = s[i];
if ((ch >= '0') && (ch <= '9')) {
continue;
}
if ((ch >= 'a') && (ch <= 'f')) {
continue;
}
if ((ch >= 'A') && (ch <= 'F')) {
continue;
}
if ((ch == ' ') || (ch == '\t')) {
continue;
}
return false;
}
return true;
}
std::string
strip_hex(const std::string &s)
{
std::string res = "";
for (size_t idx = hex_prefix_len(s); idx < s.length(); idx++) {
auto ch = s[idx];
if ((ch == ' ') || (ch == '\t')) {
continue;
}
res.push_back(ch);
}
return res;
}
char *
lowercase(char *s)
{
if (!s) {
return s;
}
for (char *ptr = s; *ptr; ++ptr) {
*ptr = tolower(*ptr);
}
return s;
}
bool
str_to_int(const std::string &s, int &val)
{
for (const char &ch : s) {
if ((ch < '0') || (ch > '9')) {
return false;
}
}
try {
val = std::stoi(s);
} catch (std::out_of_range const &ex) {
return false;
}
return true;
}
bool
is_slash(char c)
{
return (c == '/') || (c == '\\');
}
} // namespace rnp
#ifdef _WIN32
std::wstring
wstr_from_utf8(const char *s)
{
std::wstring_convert<std::codecvt_utf8<wchar_t>> utf8conv;
return utf8conv.from_bytes(s);
}
std::wstring
wstr_from_utf8(const char *first, const char *last)
{
std::wstring_convert<std::codecvt_utf8<wchar_t>> utf8conv;
return utf8conv.from_bytes(first, last);
}
std::wstring
wstr_from_utf8(const std::string &s)
{
return wstr_from_utf8(s.c_str());
}
std::string
wstr_to_utf8(const wchar_t *ws)
{
std::wstring_convert<std::codecvt_utf8<wchar_t>> utf8conv;
return utf8conv.to_bytes(ws);
}
std::string
wstr_to_utf8(const std::wstring &ws)
{
return wstr_to_utf8(ws.c_str());
}
#endif