The following example creates and writes into a text file named contact.txt − You can declare and define such files as −ĭifference between a normal file of characters and a text file is that a text file is divided into lines, each terminated by a special end-of-line marker, automatically inserted by the system. Writeln('Average Rainfall: ', average:7:2) Ī text file, in Pascal, consists of lines of characters where each line is terminated with an end-of-line marker. Procedure computeAverage(var x: raindata) Please note that, if you use a file parameter with subprograms, it must be declared as a var parameter. Next, it opens the file, reads the data and computes the average rainfall. The program creates a file named rainfall.txt and stores some rainfall data. The following example illustrates this concept. Pascal allows file variables to be used as parameters in standard and user-defined subprograms. When the above code is compiled and executed, it produces the following result − Writeln('Batch Code: ', Student.s_batchcode) Now, let us write a program that would read the student's data from the file − We have just created and written into a file named students.dat. You can open the file using a text editor, like notepad, to look at John Smith's data. When compiled and run, the program would create a file named students.dat into the working directory. Student.s_batchcode := 'Computer Science' Student.s_addr := 'United States of America' It would create a file named students.dat and write a student's data into it − Let us write a program that would create a data file for students' records. Variables of a file type are created using the var declaration −įollowing are some examples of defining some file types and file variables −Īrrfile = file of array of integer The base type could be anything like, integer, real, Boolean, enumerated, subrange, record, arrays and sets except another file type. Where, the base-type indicates the type of the components of the file. A file's type is determined by the type of the components. This website was last updated on Monday, Februat 1700 EST.Pascal treats a file as a sequence of components, which must be of uniform type. Any questionsĪbout the SWAG content in this site needs to be sent to Jim McKeeth, I claim no copyright on this mirror or its contents except for changes made on this page. The now-defunct original mirror site is ©2001 by Jim Have any questions, comments, or suggestions about this mirror, please don't hesitate to contact me. This mirror is hosted and administered by Sean Dennis. Please DO NOT link to any particular file on this mirror. Any content without a specific license attached to it is Their accompanying comments and copyrights. The code snippets on these pages are generally freeware or public domain as defined by So grab a compiler (if you don't already have one), browse through the snippets, and start programming. The Pascal language is alive and well today with products like Borlandĭelphi, Turbo Pascal, Borland Pascal, Virtual Pascal, Free Pascal, These examples of efficiency illustrated here can only result in better performance in our programs today. Your entire program on a 1.2 meg floppy, running in 64K memory block sizes and on slower CPUs. There is also a lot to be learned from this code written back when concerns dealt with fitting There is a section on Borland Delphi (mostly versionġ and maybe some 2). ForĮxample, calculating checksums or sorting data is stillĭone pretty much the same way. Another reason is that most of this stuff is still very useful in new programming challenges. Why a site with code mostly from pre-Windows 95 era Turbo Pascal programming? There are aįew reasons: the first is nostalgia for anyone who programmed in this time period the SWAG was an invaluable Whether you are a beginner orĮxperienced programmer, you'll find SWAG to be an invaluable source of ideas and information." ![]() In SWAG is intended to be a teaching and learning aid for users of the Pascal language. SWAG packets are available inĥ7 different categories covering EVERY aspect of the Pascal language and ALL ABSOLUTELY FREE! The material contained The material has been donated by various Pascal programmers from around the world who desire toĬontribute to the advancement of one of the greatest programming languages there is. "SWAG is a collection of source code and program examples for the Pascal Is no longer online and has completely removed the mirror from their website. Original SWAG website at or the original mirror at in this mirror has been removed since Is an HTML version of the last SWAG release from. [ SWAG Mirror Home | Mirrors | Download Site Archive "An elegant weapon for a more civilized time." - Obi-Wan Kenobi Outpost BBS: Main SWAG (SourceWare Archive Group) HTML Index The HTML SWAG Home Page Mirror Hosted by OUTPOSTBBS.NET
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