59 lines
2.3 KiB
C++
59 lines
2.3 KiB
C++
// fig08_07.cpp
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// Demonstrating string member functions erase and replace.
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#include <fmt/format.h>
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#include <iostream>
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#include <string>
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int main() {
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// compiler concatenates all parts into one string
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std::string string1{"The values in any left subtree"
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"\nare less than the value in the"
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"\nparent node and the values in"
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"\nany right subtree are greater"
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"\nthan the value in the parent node"};
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std::cout << fmt::format("Original string:\n{}\n\n", string1);
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string1.erase(62); // remove from index 62 through end of string1
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std::cout << fmt::format("string1 after erase:\n{}\n\n", string1);
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size_t position{string1.find(" ")}; // find first space
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// replace all spaces with period
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while (position != std::string::npos) {
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string1.replace(position, 1, ".");
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position = string1.find(" ", position + 1);
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}
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std::cout << fmt::format("After first replacement:\n{}\n\n", string1);
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position = string1.find("."); // find first period
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// replace all periods with two semicolons
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// NOTE: this will overwrite characters
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while (position != std::string::npos) {
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string1.replace(position, 2, "xxxxx;;yyy", 5, 2);
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position = string1.find(".", position + 2);
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}
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std::cout << fmt::format("After second replacement:\n{}\n", string1);
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}
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/**************************************************************************
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* (C) Copyright 1992-2022 by Deitel & Associates, Inc. and *
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* Pearson Education, Inc. All Rights Reserved. *
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* *
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* DISCLAIMER: The authors and publisher of this book have used their *
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* best efforts in preparing the book. These efforts include the *
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* development, research, and testing of the theories and programs *
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* to determine their effectiveness. The authors and publisher make *
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* no warranty of any kind, expressed or implied, with regard to these *
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* programs or to the documentation contained in these books. The authors *
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* and publisher shall not be liable in any event for incidental or *
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* consequential damages in connection with, or arising out of, the *
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* furnishing, performance, or use of these programs. *
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**************************************************************************/
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