Donald Knuth. “Literate Programming ()” in Literate Programming. CSLI, , pg. I believe that the time is ripe for significantly better documentation of . Literate programming: Knuth is doing it wrong. Literate programming advocates this: Order your code for others to read, not for the compiler. Literate. What is Literate programming? Literate programming is a style of programming invented by Donald Knuth, where the main idea is that a program’s .
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Knuth’s broader ideas about documentation and structured programming are laid out in his book, “Literate Programming. Modules have three parts: Instead of comments provided as side notes to source code a literate program contains the explanation of concepts on each level, with lower level concepts deferred to their appropriate place, which allows for better communication of thought.
Conduct peer reviews of deliverables. Quick introduction to literate programming by Chris Lee. Often, some of the subtleties of an algorithm can be unclear or hidden until it is implemented, so seeing an actual implementation is a good way to acquire a solid understanding of that algorithm’s details.
Programming on the universal canvas is one revolution that can’t possibly arrive too soon. Scattered in amongst the program code are comments which describe the various parts of the code.
In some sense, the literate programming system is just an enhanced macro substitution literafe tuned to the programmig of rearranging source code. The number of lines in a file is Production of a book quality program listing. Literate programming is very often misunderstood  to refer only to formatted documentation produced from a common file with both source code and comments — which is properly called documentation generation — or to voluminous commentaries included with code.
Despite roughness in low-level style, the program meets these goals well. This gave me some experience with writing a program that was fairly easy to read. Actually, writing out the expanded source code can be done from any section or subsection i. These prograkming are similar to the algorithms in pseudocode typically used in teaching computer science.
I hope the version is otherwise error-free. Schulte, Eric January Thus the program can be described in a logical manner. Then in orwhen I was writing TeX82, I was able to use his experience and all the feedback he had from users, and I made the system that became WEB.
He or she strives for a program that is comprehensible because its concepts have been introduced in an order that is best literatd human understanding, using a mixture of formal and informal methods that reinforce each other. There are various other implementations of the literate programming concept some of them don’t have macros and hence violate the order of human logic principle:.
Knuth: Literate Programming
At that time, we had about 25 people in our group that would meet every Friday. Literate programming macros can hide any chunk of code behind themselves, and be used inside any low-level machine language operators, often inside logical operators such as ” if “, ” while ” or ” case “.
The “Holon” concept has been introduced in biological and behavior sciences by Koestler. Applicability of the concept to programming on a large scale, that of commercial-grade programs, is proven by an edition of TeX progdamming as a literate program.
The documentation for a literate program is produced as part of writing the program. The philosophy behind CWEB is that an experienced system programmer, who wants to provide the best possible documentation of his or her software products, needs two things simultaneously: The first is the ability to mix prose with source code.
For reasons of maintainability it is essential however that the program description defines the actual program text; if this were defined in a separate source document, then inconsistencies would be almost impossible to prevent. I replied to his letter on 16 November much earlier than I remembered. Modeling diagrams are included UML.
Moreover, who documents them in a pedagogical style that is easy to understand? A holon is a “part of a whole”. In other programmkng, the name of one macro can usefully be a parameter to another macro.
Literate programming was litedate introduced by Donald Ljterate. This means that the document describing the program should consist of formatted text, rather than being a plain text file. Then we had a student at Stanford whose name was Zabala-actually he’s from Spain and he has two names-but we call him Inaki; Ignacio is his name. The documentation and high-level language code are complementary and should address the same elements of the algorithms being written. Long procedures are restructuring by folding portions of the code into sections.
Macros are not the same as “section names” in standard documentation. A traditional computer program lnuth of a text file containing program code.
And finally, who ever provides commentary on the theory and design issues behind the code as they write the documentation?
Each of these disciplines can materially improve programmer productivity and the quality litwrate code produced. These holons are submitted to some rigid rules; they perform the “detail” operations which, put together, compose the function of the former holon.