115 lines
2.1 KiB
C++
115 lines
2.1 KiB
C++
#include "string.hh"
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#include "exception.hh"
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namespace Kakoune
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{
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std::vector<String> split(const String& str, char separator, char escape)
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{
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auto begin = str.begin();
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auto end = str.begin();
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std::vector<String> res;
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while (end != str.end())
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{
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res.emplace_back();
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String& element = res.back();
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while (end != str.end())
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{
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auto c = *end;
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if (c == escape and end + 1 != end and *(end+1) == separator)
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{
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element += separator;
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end += 2;
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}
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else if (c == separator)
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{
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++end;
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break;
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}
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else
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{
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element += c;
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++end;
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}
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}
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begin = end;
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}
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return res;
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}
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String escape(const String& str, char character, char escape)
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{
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String res;
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for (auto& c : str)
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{
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if (c == character)
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res += escape;
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res += c;
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}
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return res;
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}
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int str_to_int(const String& str)
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{
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int res = 0;
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if (sscanf(str.c_str(), "%i", &res) != 1)
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throw runtime_error(str + "is not a number");
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return res;
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}
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String to_string(int val)
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{
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char buf[16];
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sprintf(buf, "%i", val);
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return buf;
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}
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String option_to_string(const Regex& re)
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{
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return String{re.str()};
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}
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void option_from_string(const String& str, Regex& re)
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{
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try
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{
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re = Regex{str.begin(), str.end()};
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}
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catch (boost::regex_error& err)
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{
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throw runtime_error("unable to create regex: "_str + err.what());
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}
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}
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bool prefix_match(const String& str, const String& prefix)
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{
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auto it = str.begin();
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for (auto& c : prefix)
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{
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if (it ==str.end() or *it++ != c)
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return false;
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}
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return true;
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}
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bool subsequence_match(const String& str, const String& subseq)
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{
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auto it = str.begin();
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for (auto& c : subseq)
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{
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if (it == str.end())
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return false;
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while (*it != c)
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{
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if (++it == str.end())
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return false;
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}
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++it;
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}
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return true;
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}
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}
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