YamlEnv.hpp File Reference

Environment variable expansion for YAML configuration. More...

#include <vulcan/io/YamlFile.hpp>
#include <vulcan/io/YamlNode.hpp>
#include <cstdlib>
#include <optional>
#include <string>

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Classes
class	vulcan::io::EnvVarError
	Exception for undefined environment variables. More...
class	vulcan::io::YamlEnv
	Environment variable expansion utilities. More...

Namespaces
namespace	vulcan
namespace	vulcan::io

Detailed Description

Environment variable expansion for YAML configuration.

Supports:

• ${VAR} - Required variable (throws if undefined)
• ${VAR:default} - Optional with fallback value
• $${VAR} - Escape to produce literal ${VAR}