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#include "bu/tafreader.h"
#include "bu/exceptions.h"
#include "bu/fstring.h"
Bu::TafReader::TafReader( Bu::Stream &sIn ) :
sIn( sIn )
{
next();
node();
}
Bu::TafReader::~TafReader()
{
}
void Bu::TafReader::node()
{
ws();
if( c != '{' )
throw Bu::TafException("Expected '{'");
next();
ws();
Bu::FString sName;
for(;;)
{
if( c == ':' )
break;
else
sName += c;
next();
}
next();
printf("Node[%s]:\n", sName.getStr() );
nodeContent();
if( c != '}' )
throw TafException("Expected '}'");
next();
}
void Bu::TafReader::nodeContent()
{
for(;;)
{
ws();
if( c == '{' )
node();
else if( c == '}' )
return;
else
nodeProperty();
}
}
void Bu::TafReader::nodeProperty()
{
Bu::FString sName;
for(;;)
{
if( isws() || c == '=' )
break;
else
sName += c;
next();
}
ws();
if( c != '=' )
{
printf(" %s (true)\n", sName.getStr() );
return;
}
next();
ws();
Bu::FString sValue;
if( c == '"' )
{
next();
for(;;)
{
if( c == '\\' )
{
next();
if( c == 'x' )
{
char code[3]={'\0','\0','\0'};
next();
code[0] = c;
next();
code[1] = c;
c = (unsigned char)strtol( code, NULL, 16 );
}
else if( c == '"' )
c = '"';
else
throw TafException("Invalid escape sequence.");
}
else if( c == '"' )
break;
sValue += c;
next();
}
next();
}
else
{
for(;;)
{
if( isws() || c == '}' || c == '{' )
break;
sValue += c;
next();
}
}
printf(" %s = %s\n", sName.getStr(), sValue.getStr() );
}
FString Bu::TafReader::readStr()
{
}
void Bu::TafReader::ws()
{
for(;;)
{
if( !isws() )
return;
next();
}
}
bool Bu::TafReader::isws()
{
return (c == ' ' || c == '\t' || c == '\n' || c == '\r');
}
void Bu::TafReader::next()
{
sIn.read( &c, 1 );
}
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