1 files changed, 127 insertions, 0 deletions

diff --git a/src/buildparser.cpp b/src/buildparser.cpp
new file mode 100644
index 0000000..e391523
--- /dev/null
+++ b/src/buildparser.cpp
@@ -0,0 +1,127 @@
+#include "buildparser.h"
+#include "ast.h"
+#include "build.yy.h"
+
+#include "bu/sio.h"
+using Bu::sio;
+
+BuildParser::BuildParser( Ast &rAst ) :
+        xAst( rAst )
+{
+        lIncludePaths.append("./");
+}
+
+BuildParser::~BuildParser()
+{
+}
+
+int build_parse( yyscan_t yyscanner, BuildParser &bld );
+
+void BuildParser::load( const Bu::FString &sFile )
+{
+        yyscan_t scanner;
+
+        sFilename.push( sFile );
+        FILE *fIn = fopen( sFile.getStr(), "rt" );
+        build_lex_init( &scanner );
+        // build_set_debug( true, scanner );
+        build_set_in( fIn, scanner );
+
+        build_parse( scanner, *this );
+
+        build_lex_destroy( scanner );
+        fclose( fIn );
+
+        // Bu::sio << xAst;
+}
+
+bool BuildParser::isKeyword( const Bu::FString &sStr )
+{
+        if( sStr == "important" )
+                return true;
+        if( sStr == "normal" )
+                return true;
+        if( sStr == "hidden" )
+                return true;
+        if( sStr == "autogenerated" )
+                return true;
+        return false;
+}
+
+bool BuildParser::isCond( const Bu::FString &sStr )
+{
+        if( sStr == "filetime" )
+                return true;
+        if( sStr == "always" )
+                return true;
+        if( sStr == "never" )
+                return true;
+        return false;
+}
+
+void BuildParser::include( const Bu::FString &sStr, void *scanner, YYLTYPE *loc )
+{
+        for( StrList::iterator pi = lIncludePaths.begin(); pi; pi++ )
+        {
+                FILE *fIn = fopen( (*pi + sStr).getStr(), "rt" );
+                if( fIn == NULL )
+                {
+                        continue;
+                }
+                sFilename.push( sStr );
+                sLocation.push( *loc );
+                loc->first_line = loc->last_line = 1;
+                loc->first_column = loc->last_column = 0;
+                build_push_buffer_state(
+                        build__create_buffer( fIn, YY_READ_BUF_SIZE, scanner ),
+                        scanner
+                        );
+                Bu::FString::const_iterator i = sStr.find('/');
+                if( i )
+                {
+                        for(;;)
+                        {
+                                Bu::FString::const_iterator j = i.find('/');
+                                if( !j )
+                                        break;
+                                i = j+1;
+                        }
+                        sio << "Hey, found it from here:  " << sStr.getSubStr( sStr.begin(), i ) << sio.nl;
+                        xAst.addNode( AstNode::typePushPrefix, sStr.getSubStr( sStr.begin(), i ) );
+                }
+                else
+                {
+                        xAst.addNode( AstNode::typePushPrefix, "" );
+                }
+                return;
+        }
+        Bu::FString msg("Could not open include file: ");
+        msg += sStr;
+        error(
+                loc->first_line, loc->last_line,
+                loc->first_column, loc->last_column,
+                msg
+                );
+}
+
+void BuildParser::endInclude( YYLTYPE *loc )
+{
+        sFilename.pop();
+        memcpy( loc, &sLocation.peek(), sizeof(YYLTYPE) );
+        sLocation.pop();
+        xAst.addNode( AstNode::typePopPrefix );
+}
+
+void BuildParser::error( int iLine1, int iLine2, int iCol1, int iCol2,
+        const Bu::FString &sMsg )
+{
+        throw Bu::ExceptionBase("%s: %d-%d:%d-%d: %s",
+                sFilename.peek().getStr(), iLine1, iLine2, iCol1, iCol2, sMsg.getStr()
+                );
+}
+
+void BuildParser::addIncludePath( const Bu::FString &sPath )
+{
+        lIncludePaths.append( sPath + "/" );
+}
+