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OpenMW is an open implementation of the Morrowind engine
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3.4 kB · 98 lines
C++
at master
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899#include "messageformatparser.hpp"
#include <charconv>
namespace{ int parseNumber(std::size_t& i, std::string_view m, int fallback) { if (i < m.size() && m[i] >= '0' && m[i] <= '9') { const char* start = m.data() + i; int parsed; auto [ptr, ec] = std::from_chars(start, m.data() + m.size(), parsed); i += ptr - start; if (ec == std::errc()) return parsed; } return fallback; }}
namespace Misc{ MessageFormatParser::~MessageFormatParser() = default;
void MessageFormatParser::process(std::string_view m) { for (std::size_t i = 0; i < m.size(); ++i) { if (m[i] != '%') { visitedCharacter(m[i]); continue; } if (++i == m.size()) break; if (m[i] == '%') { visitedCharacter('%'); continue; }
int flags = None; while (i < m.size()) { if (m[i] == '-') flags |= AlignLeft; else if (m[i] == '+') flags |= PositiveSign; else if (m[i] == ' ') flags |= PositiveSpace; else if (m[i] == '0') flags |= PrependZero; else if (m[i] == '#') flags |= AlternateForm; else break; ++i; }
int width = parseNumber(i, m, -1);
if (i < m.size()) { int precision = -1; if (m[i] == '.') { ++i; precision = parseNumber(i, m, 0); }
if (i < m.size()) { if (m[i] == 'S' || m[i] == 's') visitedPlaceholder(StringPlaceholder, flags, width, precision, Notation::Fixed); else if (m[i] == 'd' || m[i] == 'i') visitedPlaceholder(IntegerPlaceholder, flags, width, precision, Notation::Fixed); else if (m[i] == 'f' || m[i] == 'F') visitedPlaceholder(FloatPlaceholder, flags, width, precision, Notation::Fixed); else if (m[i] == 'e') visitedPlaceholder(FloatPlaceholder, flags, width, precision, Notation::ScientificLower); else if (m[i] == 'E') visitedPlaceholder(FloatPlaceholder, flags, width, precision, Notation::ScientificUpper); else if (m[i] == 'g') visitedPlaceholder(FloatPlaceholder, flags, width, precision, Notation::ShortestLower); else if (m[i] == 'G') visitedPlaceholder(FloatPlaceholder, flags, width, precision, Notation::ShortestUpper); else if (m[i] == 'a') visitedPlaceholder(FloatPlaceholder, flags, width, precision, Notation::HexLower); else if (m[i] == 'A') visitedPlaceholder(FloatPlaceholder, flags, width, precision, Notation::HexUpper); else visitedCharacter(m[i]); } } } }}