diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/libcamera/yaml_parser.cpp | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/libcamera/yaml_parser.cpp b/src/libcamera/yaml_parser.cpp index f928b723..85a52c05 100644 --- a/src/libcamera/yaml_parser.cpp +++ b/src/libcamera/yaml_parser.cpp @@ -132,6 +132,61 @@ std::optional<bool> YamlObject::get() const } template<> +std::optional<int8_t> YamlObject::get() const +{ + if (type_ != Type::Value) + return std::nullopt; + + if (value_ == "") + return std::nullopt; + + char *end; + + errno = 0; + long value = std::strtol(value_.c_str(), &end, 10); + + if ('\0' != *end || errno == ERANGE || + value < std::numeric_limits<int8_t>::min() || + value > std::numeric_limits<int8_t>::max()) + return std::nullopt; + + return value; +} + +template<> +std::optional<uint8_t> YamlObject::get() const +{ + if (type_ != Type::Value) + return std::nullopt; + + if (value_ == "") + return std::nullopt; + + /* + * libyaml parses all scalar values as strings. When a string has + * leading spaces before a minus sign, for example " -10", strtoul + * skips leading spaces, accepts the leading minus sign, and the + * calculated digits are negated as if by unary minus. Rule it out in + * case the user gets a large number when the value is negative. + */ + std::size_t found = value_.find_first_not_of(" \t"); + if (found != std::string::npos && value_[found] == '-') + return std::nullopt; + + char *end; + + errno = 0; + unsigned long value = std::strtoul(value_.c_str(), &end, 10); + + if ('\0' != *end || errno == ERANGE || + value < std::numeric_limits<uint8_t>::min() || + value > std::numeric_limits<uint8_t>::max()) + return std::nullopt; + + return value; +} + +template<> std::optional<int16_t> YamlObject::get() const { if (type_ != Type::Value) @@ -310,6 +365,8 @@ template<typename T, std::enable_if_t< std::is_same_v<bool, T> || std::is_same_v<double, T> || + std::is_same_v<int8_t, T> || + std::is_same_v<uint8_t, T> || std::is_same_v<int16_t, T> || std::is_same_v<uint16_t, T> || std::is_same_v<int32_t, T> || @@ -336,6 +393,8 @@ std::optional<std::vector<T>> YamlObject::getList() const template std::optional<std::vector<bool>> YamlObject::getList<bool>() const; template std::optional<std::vector<double>> YamlObject::getList<double>() const; +template std::optional<std::vector<int8_t>> YamlObject::getList<int8_t>() const; +template std::optional<std::vector<uint8_t>> YamlObject::getList<uint8_t>() const; template std::optional<std::vector<int16_t>> YamlObject::getList<int16_t>() const; template std::optional<std::vector<uint16_t>> YamlObject::getList<uint16_t>() const; template std::optional<std::vector<int32_t>> YamlObject::getList<int32_t>() const; |