developing a in-house tokenizer

vpr7_x2p/libarchfpga/SRC/fpga_spice_include/string_token.cpp

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+/**********************************************************
+ * MIT License
+ *
+ * Copyright (c) 2018 LNIS - The University of Utah
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ***********************************************************************/
+
+/************************************************************************
+ * Filename:    string_token.cpp
+ * Created by:   Xifan Tang
+ * Change history:
+ * +-------------------------------------+
+ * |  Date       |    Author   | Notes
+ * +-------------------------------------+
+ * | 2019/08/09  |  Xifan Tang | Created 
+ * +-------------------------------------+
+ ***********************************************************************/
+
+/************************************************************************
+ * Member functions for StringToken class 
+ ***********************************************************************/
+
+#include "string.h"
+
+#include "vtr_assert.h"
+
+#include "string_token.h"
+
+/************************************************************************
+ * Constructors
+ ***********************************************************************/
+StringToken::StringToken (const std::string& data) {
+  set_data(data);
+}
+
+/************************************************************************
+ * Public Accessors
+ ***********************************************************************/
+/* Get the data string */
+std::string StringToken::data() const {
+  return data_;
+}
+
+/* Split the string */
+std::vector<std::string> StringToken::split() {
+  /* Return vector */
+  std::vector<std::string> ret;
+
+  /* Add a default delim */ 
+  if (true == delims_.empty()) {
+    add_default_delim();
+  }
+  /* Create delims */
+  std::string delims;
+  for (const auto& delim : delims_) {
+    delims.push_back(delim);
+  }
+  /* Get a writable char array */
+  char* tmp = new char[data_.size() + 1];
+  std::copy(data_.begin(), data_.end(), tmp);
+  tmp[data_.size()] = '\0';
+  /* Split using strtok */
+  char* result = strtok(tmp, delims.c_str());
+  while (NULL != result) {
+    std::string result_str(result);
+    /* Store the token */
+    ret.push_back(result_str);
+    /* Got to next */
+    result = strtok(NULL, delims.c_str());
+  }
+
+  /* Free the tmp */
+  delete[] tmp;
+
+  return ret;
+}
+
+/************************************************************************
+ * Public Mutators
+ ***********************************************************************/
+void StringToken::set_data(const std::string& data) {
+  data_ = data;
+  return;
+}
+
+/* Add a delima to the list */
+void StringToken::add_delim(const char& delim) {
+  delims_.push_back(delim);
+}
+
+/************************************************************************
+ * Internal Mutators
+ ***********************************************************************/
+void StringToken::add_default_delim() {
+  VTR_ASSERT_SAFE(true == delims_.empty());
+  delims_.push_back(' ');
+  return;
+}
+
+/************************************************************************
+ * End of file : string_token.cpp
+ ***********************************************************************/
+

vpr7_x2p/libarchfpga/SRC/fpga_spice_include/string_token.h

@@ -0,0 +1,81 @@
+/**********************************************************
+ * MIT License
+ *
+ * Copyright (c) 2018 LNIS - The University of Utah
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ ***********************************************************************/
+
+/************************************************************************
+ * Filename:    string_token.h
+ * Created by:   Xifan Tang
+ * Change history:
+ * +-------------------------------------+
+ * |  Date       |    Author   | Notes
+ * +-------------------------------------+
+ * | 2019/08/09  |  Xifan Tang | Created 
+ * +-------------------------------------+
+ ***********************************************************************/
+
+/* IMPORTANT:
+ * The following preprocessing flags are added to 
+ * avoid compilation error when this headers are included in more than 1 times 
+ */
+#ifndef STRING_TOKEN_H
+#define STRING_TOKEN_H
+
+/*
+ * Notes in include header files in a head file 
+ * Only include the neccessary header files 
+ * that is required by the data types in the function/class declarations!
+ */
+/* Header files should be included in a sequence */
+/* Standard header files required go first */
+#include <string>
+#include <vector>
+
+
+/************************************************************************
+ * This file includes a tokenizer for string objects
+ * It splits a string with given delima and return a vector of tokens
+ * It can accept different delima in splitting strings
+ ***********************************************************************/
+
+class StringToken {
+  public : /* Constructors*/
+    StringToken (const std::string& data);
+  public : /* Public Accessors */ 
+    std::string data() const;
+    std::vector<std::string> split();
+  public : /* Public Mutators */ 
+    void set_data(const std::string& data);
+    void add_delim(const char& delim);
+  private : /* Private Mutators */ 
+    void add_default_delim();
+  private: /* Internal data */
+    std::string data_; /* Lines to be splited */
+    std::vector<char> delims_;
+};
+
+#endif
+
+/************************************************************************
+ * End of file : string_token.h
+ ***********************************************************************/
+