1 files changed, 201 insertions, 0 deletions
diff --git a/tier3/scenetokenprocessor.cpp b/tier3/scenetokenprocessor.cpp
new file mode 100644
index 0000000..b1730a5
--- /dev/null
+++ b/tier3/scenetokenprocessor.cpp
@@ -0,0 +1,201 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================
+
+#include "../game/shared/choreoscene.h"
+#include "../game/shared/choreoactor.h"
+#include "../game/shared/choreochannel.h"
+#include "../game/shared/choreoevent.h"
+#include "../game/shared/iscenetokenprocessor.h"
+#include "characterset.h"
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Helper for parsing scene data file
+//-----------------------------------------------------------------------------
+class CSceneTokenProcessor : public ISceneTokenProcessor
+{
+public:
+	CSceneTokenProcessor();
+
+	const char	*CurrentToken( void );
+	bool		GetToken( bool crossline );
+	bool		TokenAvailable( void );
+	void		Error( const char *fmt, ... );
+	void		SetBuffer( char *buffer );
+private:
+
+	const char *ParseNextToken (const char *data);
+
+	const char	*m_pBuffer;
+	char		m_szToken[ 1024 ];
+
+	characterset_t	m_BreakSetIncludingColons;
+};
+
+CSceneTokenProcessor::CSceneTokenProcessor()
+{
+	CharacterSetBuild( &m_BreakSetIncludingColons, "{}()':" );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : const char
+//-----------------------------------------------------------------------------
+const char *CSceneTokenProcessor::CurrentToken( void )
+{
+	return m_szToken;
+}
+
+const char *CSceneTokenProcessor::ParseNextToken (const char *data)
+{
+	unsigned char    c;
+	int             len;
+	characterset_t	*breaks;
+	
+	breaks = &m_BreakSetIncludingColons;
+	
+	len = 0;
+	m_szToken[0] = 0;
+	
+	if (!data)
+		return NULL;
+		
+// skip whitespace
+skipwhite:
+	while ( (c = *data) <= ' ')
+	{
+		if (c == 0)
+			return NULL;                    // end of file;
+		data++;
+	}
+	
+// skip // comments
+	if (c=='/' && data[1] == '/')
+	{
+		while (*data && *data != '\n')
+			data++;
+		goto skipwhite;
+	}
+	
+
+// handle quoted strings specially
+	if (c == '\"')
+	{
+		data++;
+		while (1)
+		{
+			c = *data++;
+			if (c=='\"' || !c)
+			{
+				m_szToken[len] = 0;
+				return data;
+			}
+			m_szToken[len] = c;
+			len++;
+		}
+	}
+
+// parse single characters
+	if ( IN_CHARACTERSET( *breaks, c ) )
+	{
+		m_szToken[len] = c;
+		len++;
+		m_szToken[len] = 0;
+		return data+1;
+	}
+
+// parse a regular word
+	do
+	{
+		m_szToken[len] = c;
+		data++;
+		len++;
+		c = *data;
+		if ( IN_CHARACTERSET( *breaks, c ) )
+			break;
+	} while (c>32);
+	
+	m_szToken[len] = 0;
+	return data;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : crossline - 
+// Output : Returns true on success, false on failure.
+//-----------------------------------------------------------------------------
+bool CSceneTokenProcessor::GetToken( bool crossline )
+{
+	// NOTE: crossline is ignored here, may need to implement if needed
+	m_pBuffer = ParseNextToken( m_pBuffer );
+	if ( m_szToken[0] )
+		return true;
+	return false;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Output : Returns true on success, false on failure.
+//-----------------------------------------------------------------------------
+bool CSceneTokenProcessor::TokenAvailable( void )
+{
+	const char *search_p = m_pBuffer;
+
+	while ( *search_p <= 32)
+	{
+		if (*search_p == '\n')
+			return false;
+		search_p++;
+		if ( !*search_p )
+			return false;
+
+	}
+
+	if (*search_p == ';' || *search_p == '#' ||		 // semicolon and # is comment field
+		(*search_p == '/' && *((search_p)+1) == '/')) // also make // a comment field
+		return false;
+
+	return true;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *fmt - 
+//			... - 
+//-----------------------------------------------------------------------------
+void CSceneTokenProcessor::Error( const char *fmt, ... )
+{
+	char string[ 2048 ];
+	va_list argptr;
+	va_start( argptr, fmt );
+	Q_vsnprintf( string, sizeof(string), fmt, argptr );
+	va_end( argptr );
+
+	Warning( "%s", string );
+	Assert(0);
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *buffer - 
+//-----------------------------------------------------------------------------
+void CSceneTokenProcessor::SetBuffer( char *buffer )
+{
+	m_pBuffer = buffer;
+}
+
+CSceneTokenProcessor g_TokenProcessor;
+
+ISceneTokenProcessor *GetTokenProcessor()
+{
+	return &g_TokenProcessor;
+}
+
+void SetTokenProcessorBuffer( const char *buf )
+{
+	g_TokenProcessor.SetBuffer( (char *)buf );
+}
+