adam/power-console
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I dunno that this makes it any easier...

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I tried splitting up the sources to speed
up some compiling... but it didn't help.
I dunno that it's more readable this way.

I'm checkpointing this just in case.
This commit is contained in:
ADAM David Alan Martin
2026-01-26 03:47:52 -05:00
parent 9fca970fc5
commit c368696cc2
11 changed files with 279 additions and 200 deletions
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73
ConfigFile.h
View File

@ -3,8 +3,6 @@
#include <map>
#include <string>
#include <istream>
#include <ostream>
#include <optional>
namespace Config::inline Hydrogen {}
@ -20,77 +18,10 @@ namespace Config::Hydrogen ::detail:: ConfigFile_m
private:
std::map< std::string, std::string > config;
struct EoF {};
std::string
readLine( std::istream &input )
{
std::string rv;
std::getline( input, rv );
if( not input ) throw EoF{};
// SStrip trailing '#' comments...
const auto endComment= std::find( begin( rv ), end( rv ), '#' );
rv.erase( endComment, end( rv ) );
return rv;
}
std::string
trimWhitespace( std::string s )
{
// Trim from the front
std::reverse( begin( s ), end( s ) );
while( not s.empty() and s.back() == ' ' ) s.pop_back();
// Trim from the back
std::reverse( begin( s ), end( s ) );
while( not s.empty() and s.back() == ' ' ) s.pop_back();
return s;
}
auto
parseLine( const std::string &line )
{
const auto split= std::find( begin( line ), end( line ), '=' );
if( split == end( line ) ) throw std::runtime_error{ "Unable to parse configuration line: `" + line + "`" };
const auto key= trimWhitespace( { begin( line ), split } );
const auto value= trimWhitespace( { split + 1, end( line ) } );
return std::tuple{ key, value };
}
public:
explicit
ConfigFile( std::istream &&input, const std::map< std::string, std::string > &schema )
{
config= schema;
while( input )
try
{
const std::string line= trimWhitespace( readLine( input ) );
if( line.empty() ) continue; // Skip blank lines.
const auto [ key, value ]= parseLine( line );
explicit ConfigFile( std::istream &&input, const std::map< std::string, std::string > &schema );
if( not schema.contains( key ) )
{
std::cerr << "Unrecognized key in config file: `" << key << "`" << std::endl;
continue;
}
config.at( key )= value;
}
catch( const EoF & ) { break; }
std::cerr << "Configuration parsed:" << std::endl;
for( const auto &[ key, value ]: config )
{
std::cerr << key << " = " << value << std::endl;
}
}
std::string get( const std::string &name ) const { return config.at( name ); }
std::string get( const std::string &name ) const;
};
}