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Move string substitution to the StackableStreambuf framework.

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ADAM David Alan Martin
2023-10-21 05:08:48 -04:00
parent 5beca91dde
commit eee9c5362f
2 changed files with 18 additions and 87 deletions
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14
string_algorithms.h
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@ -18,6 +18,8 @@ static_assert( __cplusplus > 2020'00 );
#include <Alepha/Concepts.h>
#include <Alepha/Utility/StackableStreambuf.h>
namespace Alepha::Hydrogen ::detail:: string_algorithms
{
inline namespace exports {}
@ -38,26 +40,26 @@ namespace Alepha::Hydrogen ::detail:: string_algorithms
*/
std::string expandVariables( const std::string &text, const VarMap &vars, const char sigil );
struct StartSubstitutions
struct StartSubstitutions_params
{
const char sigil;
VarMap substitutions;
explicit
StartSubstitutions( const char sigil, VarMap substitutions )
StartSubstitutions_params( const char sigil, VarMap substitutions )
: sigil( sigil ), substitutions( std::move( substitutions ) )
{}
};
using StartSubstitutions= Utility::PushStack< StartSubstitutions_params >;
// Note that these function as a stack -- so `EndSubstitutions` will
// terminate the top of that stack.
constexpr struct EndSubstitutions_t {} EndSubstitutions;
constexpr Utility::PopStack EndSubstitutions;
inline namespace impl
{
std::ostream &operator << ( std::ostream &, StartSubstitutions && );
std::ostream &operator << ( std::ostream &, EndSubstitutions_t );
void build_streambuf( std::ostream &, StartSubstitutions && );
}
/*!