diff options
Diffstat (limited to 'BaseTools/Source/C/VfrCompile/Pccts/h/PBlackBox.h')
-rw-r--r-- | BaseTools/Source/C/VfrCompile/Pccts/h/PBlackBox.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/BaseTools/Source/C/VfrCompile/Pccts/h/PBlackBox.h b/BaseTools/Source/C/VfrCompile/Pccts/h/PBlackBox.h new file mode 100644 index 0000000000..d25b8d6939 --- /dev/null +++ b/BaseTools/Source/C/VfrCompile/Pccts/h/PBlackBox.h @@ -0,0 +1,134 @@ +#ifndef PBLACKBOX_H
+#define PBLACKBOX_H
+
+/*
+ * SOFTWARE RIGHTS
+ *
+ * We reserve no LEGAL rights to the Purdue Compiler Construction Tool
+ * Set (PCCTS) -- PCCTS is in the public domain. An individual or
+ * company may do whatever they wish with source code distributed with
+ * PCCTS or the code generated by PCCTS, including the incorporation of
+ * PCCTS, or its output, into commerical software.
+ *
+ * We encourage users to develop software with PCCTS. However, we do ask
+ * that credit is given to us for developing PCCTS. By "credit",
+ * we mean that if you incorporate our source code into one of your
+ * programs (commercial product, research project, or otherwise) that you
+ * acknowledge this fact somewhere in the documentation, research report,
+ * etc... If you like PCCTS and have developed a nice tool with the
+ * output, please mention that you developed it using PCCTS. In
+ * addition, we ask that this header remain intact in our source code.
+ * As long as these guidelines are kept, we expect to continue enhancing
+ * this system and expect to make other tools available as they are
+ * completed.
+ *
+ * ANTLR 1.33
+ * Terence Parr
+ * Parr Research Corporation
+ * with Purdue University and AHPCRC, University of Minnesota
+ * 1989-2000
+ */
+
+/* Completely rewritten by Chris Uzdavinis (chris@atdesk.com) for MR23 */
+
+#include "pcctscfg.h"
+
+#include "pccts_iostream.h"
+
+PCCTS_NAMESPACE_STD
+
+// MR20 Added #include for "DLexerBase.h"
+
+#include "DLexerBase.h"
+
+//
+// The default buffer size of the lexer is given by the
+// second argument of the lexer's ctor. It is optional
+// and defaults to 2000
+//
+
+template<class Lexer, class Parser, class Token>
+class DllExportPCCTS ParserBlackBox {
+private:
+ // no copy construction allowed
+ ParserBlackBox(ParserBlackBox const &);
+
+ // no copy assignment allowed
+ ParserBlackBox & operator=(ParserBlackBox const &);
+
+protected:
+ DLGFileInput *in;
+ Lexer *scan;
+ _ANTLRTokenPtr tok;
+ ANTLRTokenBuffer *pipe;
+ Parser *_parser;
+ FILE *file;
+ int openByBlackBox; /* MR21 Don't close what we haven't opened */
+public:
+
+ ParserBlackBox(FILE *f)
+ : in(0)
+ , scan(0)
+ , tok(0)
+ , pipe(0)
+ , _parser(0)
+ , file(0)
+ , openByBlackBox(0)
+ {
+ if (f == NULL)
+ {
+ cerr << "invalid file pointer\n";
+ }
+ else
+ {
+ openByBlackBox = 0; /* MR21a */
+ file = f;
+ in = new DLGFileInput(f);
+ scan = new Lexer(in);
+ pipe = new ANTLRTokenBuffer(scan);
+ tok = new Token;
+ scan->setToken(tok);
+ _parser = new Parser(pipe);
+ _parser->init();
+ }
+ }
+ ParserBlackBox(char *fname)
+ : in(0)
+ , scan(0)
+ , tok(0)
+ , pipe(0)
+ , _parser(0)
+ , file(0)
+ , openByBlackBox(0)
+ {
+ FILE *f = fopen(fname, "r");
+ if ( f==NULL ) {
+ openByBlackBox = 0;
+ cerr << "cannot open " << fname << "\n"; return;
+ }
+ else {
+ openByBlackBox = 1;
+ file = f;
+ in = new DLGFileInput(f);
+ scan = new Lexer(in);
+ pipe = new ANTLRTokenBuffer(scan);
+ tok = new Token;
+ scan->setToken(tok);
+ _parser = new Parser(pipe);
+ _parser->init();
+ }
+ }
+
+ ~ParserBlackBox()
+ {
+ delete in; delete scan; delete pipe; delete _parser; delete tok;
+ if (1 == openByBlackBox) {
+ fclose(file);
+ }
+ }
+
+ Parser *parser() { return _parser; }
+ Lexer *getLexer() { return scan; }
+};
+
+#endif
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