created parsers folder

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2025-05-08 08:15:47 +00:00 · 2012-10-26 18:25:15 -07:00 · 2012-10-26 18:25:15 -07:00 · ad9bad9cc1
commit ad9bad9cc1
parent 1492b81290
19 changed files with 3 additions and 3 deletions
--- a/src/parsers/smt2/smt2scanner.h
+++ b/src/parsers/smt2/smt2scanner.h
@ -0,0 +1,108 @@
+/*++
+Copyright (c) 2006 Microsoft Corporation
+
+Module Name:
+
+    smt2scanner.h
+
+Abstract:
+
+    <abstract>
+
+Author:
+
+    Leonardo de Moura (leonardo) 2011-03-09.
+
+Revision History:
+
+--*/
+#ifndef _SMT2SCANNER_H_
+#define _SMT2SCANNER_H_
+
+#include<iostream>
+#include"symbol.h"
+#include"vector.h"
+#include"rational.h"
+#include"cmd_context.h"
+
+namespace smt2 {
+
+    typedef cmd_exception scanner_exception;
+    
+    class scanner {
+    private:
+        cmd_context &      m_ctx;
+        bool               m_interactive;
+        int                m_spos; // position in the current line of the stream
+        char               m_curr;  // current char;
+        
+        int                m_line;  // line
+        int                m_pos;   // start position of the token
+        // data
+        symbol             m_id;
+        rational           m_number;
+        unsigned           m_bv_size;
+        // end of data
+        char               m_normalized[256];
+#define SCANNER_BUFFER_SIZE 1024
+        char               m_buffer[SCANNER_BUFFER_SIZE];
+        unsigned           m_bpos;
+        unsigned           m_bend;
+        svector<char>      m_string;
+        std::istream&      m_stream;
+        
+        bool               m_cache_input;
+        svector<char>      m_cache;
+        svector<char>      m_cache_result;
+        
+        char curr() const { return m_curr; }
+        void new_line() { m_line++; m_spos = 0; }
+        void next();
+        
+    public:
+        
+        enum token {
+            NULL_TOKEN = 0,
+            LEFT_PAREN = 1,
+            RIGHT_PAREN,
+            KEYWORD_TOKEN,
+            SYMBOL_TOKEN,
+            STRING_TOKEN,
+            INT_TOKEN,
+            BV_TOKEN,
+            FLOAT_TOKEN,
+            EOF_TOKEN
+        };
+        
+        scanner(cmd_context & ctx, std::istream& stream, bool interactive = false);
+        
+        ~scanner() {}    
+        
+        int get_line() const { return m_line; }
+        int get_pos() const { return m_pos; }
+        symbol const & get_id() const { return m_id; }
+        rational get_number() const { return m_number; }
+        unsigned get_bv_size() const { return m_bv_size; }
+        char const * get_string() const { return m_string.begin(); }
+        token scan();
+        
+        token read_symbol_core();
+        token read_symbol();
+        token read_quoted_symbol();
+        void read_comment();
+        token read_number();
+        token read_signed_number();
+        token read_string();
+        token read_bv_literal();
+
+        void start_caching() { m_cache_input = true; m_cache.reset(); }
+        void stop_caching() { m_cache_input = false; }
+        unsigned cache_size() const { return m_cache.size(); }
+        void reset_cache() { m_cache.reset(); }
+        char const * cached_str(unsigned begin, unsigned end);
+    };
+
+};
+
+#endif /* _SCANNER_H_ */
+