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This subchapter looks at the common lexical elements of a programming language.
The student should know what a lexical element is, what a token is, and the names of the lexical elements in the programming language being used.
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This subchapter looks at the common lexical elements of a programming language.
The lexical elements of a programming language are the building blocks for making a valid program in that particular programming language.
The lexical elements are also called tokens. Note that some items, such as comments and white space, are often considered not to be a token. The line between tokens and non-tokens varies by language.
Common tokens or lexical elements include: comments, identifiers, key words, literals, operators, reserved words, separators, and white space.
We have already discuused some of these items, particularly comments and white space, when discussing good documentation techniques.
There is a temporary stoppage in work on this project because the author is once again homeless. This is a very worthy project that can benefit tens of millions of poor students at a very low cost (hundreds of dollars a month) and a banner ad for the sponsor could lead to millions of dollars of income. If a business is interested in supporting this project, please see project for details.
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Because I no longer have the computer and software to make PDFs, the book is available as an HTML file, which you can convert into a PDF.
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free computer programming text book projectBuilding a free downloadable text book on computer programming for university, college, community college, and high school classes in computer programming. If you like the idea of this project, At the time I write this message I am a few days from becoming homeless. That will greatly interfere with my ability to create this project, which can help nearly 20 million U.S. college students and more than 150 million students world-wide. I am looking for 30 rich people or corporations willing to donate $10 a month to my church so that the church can provide a place indoors for me to continue work. If you want to donate, please see help project. Thanks much. Supporting the entire project: If you have a business or organization that can support the entire cost of this project, please contact Pr Ntr Kmt (my church) free downloadable college text book on computer programming. |
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Copyright © 2011 Milo
Created: January 3, 2011
Last Updated: January 3, 2011
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