Generic rexx utility expand external cobol copybooks. Rexx calling a cobol program computer programming language. I would like to specify the copybook name on the command line. Convert cobol copybook to fileaid copybook rexx tektips. This library statement places prewritten text into a cobol program. Create an indented structure report for cobol source. Without knowing what teradata ddl looks like, what i can say is the analysis of a copybook is very complicated. Since we are not teaching you how to program in cobol, we will only discuss the rules you need to know to read layouts.
Expanding a copybook called in cobol using clist ibm mainframe. Examples of using linkmvs, attchmvs, and call to invoke a program. Once the table is generated i can upload a file into my program and it will read, convert from imb37 and insert the file into that sql table. And here i didnt understand what does cpybk will do. The reason i am basing the root program in rexx is for the extensive string handling and datatype conversions that are not as robust in other languages. Parse the copybook into a usable format to use in python. This is the cobol parser translator, written in rexx, that parses the source identified by the source ddname. This is a cobol copybook parser in python featuring the following options. Branch branch to performed subroutine in a cobol program. May 25, 2011 online project with cobol and rexx 1 comment hi guys, i got one realtime processing project with cobol and rexx. Jul 22, 2015 hi everyone, i am working on a rexx code which would expand all submodules inside the calling program. The program cannot call a rexx subprogram until it is executing, which cannot in turn occur until the cobol program has been compiled and linkage edited bound. This project includes utilities to convert an xml instance file into its cobol copybook equivalent string buffer and vice versa.
The hexaware team has developed a rexx routine which expanded all external copybooks used in the cobol module itself. Is it possible to call a cobol program from a rexx program, using the copy book to pass some parameters and finally call this program, like it is done in a cobol program call g10cpgm using g10w0600comregion where g10cpgm is the cobol program being called. Read the copybook member in another stem variable and then keep inserting copybook stemmed data to first one to get the third stem variable. Describe or explain how to pass a parameter string or variable from jcl to cobol via the linkage section or the accept statement. If there are two copybooks which have same variables and. Conversion of cobol copybooks to easytrieve format. The linkmvs and attchmvs address environments can be used to invoke a program normally invoked as a batch job, as can the tso call command. Clean up the copybook by processing redefines statements and remove unused definitions. You will need to write simple rexx program which will read whole cobol program to stem variable. If we keep the dclgen structure for a table in a copybook. When you compile using the cob2 command, copybooks are included from the zos unix.
Cobol copybook expansion tool xp in rexx mainframes 360. The bfitoolkit is a set of scripts that converts cobol copybooks to xml. When a cobol copybook is loaded the recordeditor sets a cobol copybook field to the copybook name. The cobol program has to be compiled and the copy books are expanded during the compile. Rexx can make your daily mainframe life even better. Id like a toolutility that will resolve all of the copy statements, replacing them with the copyd member, leaving me with a single file that is a complete cobol program compilerready. To stack the cp preprocessor before the pro cobol preprocessor use directives similar to this. So include can also have just cobol statements like copy copybook and can be used in place of copy in a cobol program. Conversion of cobol copybooks to easytrieve format showing 14 of 4 messages. Hi, has anyone got any rexx exec that will convert any standard cobol record layouti. The cobol program basically accepts the customer number which is passed as a parameter and it displays the customer name.
Fccmdupd, insert a command to a users command table under program control. Rexx tool to expand a field in list of cobol modules. Oct 09, 2017 the hexaware team has developed a rexx routine which expanded all external copybooks used in the cobol module itself. Such a parser has to be willing to parse not just an entire program, but to parse various subparts, such as a copybook containing a paragraph or a data declaration. You could probably write a rexx program to take the source before the compile and expand the copy books, but the question is. You use this information to identify all the cobol data items required to write your business rules. Resolvingexpanding all copy statements to make single. Intrinsic rexx adds a lot of power to cobol processing. Cobol copy and include statements f1 for mainframe.
Also, if there is any routine that u have writen or coded to convert a cobol copybook to a easytrieve layout. Generic rexx utility expand external cobol copybooks sameer. Table 1 shows various examples of invoking program mywto while passing a single parameter or while passing two parameters to the program. In other words, the cobol compiler substitutes the copybook code in your cobol program. A cobol copybook is a file that contains cobol source code and is used to synchronize that code among various cobol programs. Flmlrcbl determines the names of dependencies that are to be copied into the cobol source.
Copybook education, a book containing examples and space for writing down copies of the examples. Rexx was developed in the year 1979, by a programmer, mike cowlishaw, who is now a visiting professor at the university of warwick. Also i would welcome other considerations for this process the cobol program could be called many, many times, depending on the data needed and returned for processing. Ibm compiler and library for rexx on zseries v1r4 users guide and reference sh19816005 the following samples show how to call a rexx exec from a cobol program under zos. Internally, rexx does data coercion as needed by context, but this will be made to work in a sane way. I want a guide through a rexx tool which expand couple of fields in the working storage section of cobol programs. Rexx macro should return the pds and member i am editing. This app is designed to parse the cobol copybook and present the data in a useful format. Hi, is there any tso command or any ispf command which will help me to expand my copybook while looking into the source code. Hi folks, i have a requirement to develop a rexx tool. That is, i have the source code line copy copybook.
I am trying to prepare a tool which can expand a copybook used in a cobol program, this will help me a great deal in analysing the programs which have plenty of copybooks called in it. When you reload a cobol copybook, the recordeditor will delete any copybook where the cobol copybook field is the same as the copybook being loaded. Gnucobol formerly opencobol gnucobol is a free software cobol compiler. Is somebody can send me some samples or say me where i can look for. Passing jcl parameters to a cobol program via linkage or. A cobol copybook is a section of code that defines the data structures of cobol programs. To enable you to call application engine programs from cobol programs, include the copybook called ptccblae. I have created or collaborated on a great deal of rexx code for mvs. It helps you in automating the daily manual stuff you do which consumes most of your productivity. Id do it myself but im a bit of a cobol and easytrieve duffer. Conversion allows for transformation of the xml produced, to create useful bits of code using xslt cobol programs, copybook, db tables etc.
If you always end your subroutines with a comment that names the subroutine, youll see that, too. I am planning to using clist language for this purpose. I have my cobol code on mvs, broken down into many pds members, using copy statements to pull the pieces together in the compile step. A message window shows the upload request is executing. If we keep the dclgen structure for a table in a copybook and include it in the cobol program using the copy statement, will there be any impact during compilation or at any. Before writing your business rules, you identify the data structures on which you want to write and manage rules outside of your cobol application. Then read each line of cobol and find out the copy book members. Functions one of the functions of an sclm parser is to determine a modules dependencies. Mainframe utilities pragmatic pontifications david.
By any chance, did you mean to expand the copybooks embedded in the line of codes. Level this is the level number of fields in the copybook. In addition to the rexx language instructions and built in functions, and the tsoe external functions and rexx commands that are provided for writing rexx execs, tsoe provides programming services for rexx processing. Included are examples of using the parm and sysin functions to pass text strings, variables or multiple records from sysin. To submit a parameterized build upload copybook member to host request for a program with a copybook, do these steps. I have a program that does just this, its about 3000 lines of rexx code. In the cobol program i want to write some vars in the rexx environment. Calling a non cobol program from a cobol program on os390. The record currently has 1208 chars and i need to add another 10 to it. In cobol, include membername must not be specified in other than the data division or procedure division note.
The best way to do this which i could think of is to find the dd name and cobol program name from the jcl for that dataset and use dd name in cobol program to find out the copybook. I can edit the copybook as long as the other programs using it will compile. Itll be handy being able to use rexx with ref mod and rexxnum inside computations. If you use a cobol parser designed for the purpose, then this is relatively easy. Please let me know if this is possible using clist. Previously, for a similar kind of work i referred the code snippet to expand copybooks. You may be able to stack the cp copybook precompiler before the pro cobol precompiler to expand the copybooks before the sql precompiler processes of the code allowing you to continue using the in myfolder on the copy statement.
Then i am analyzing the compiler output data types section to determine the column names, types and lengths and create the create table statement. Call a rexx exec and have it address the calling program. Cb2xml copybook to xml is a cobol copybook to xml converter written in java and based on the sablecc parser generator. Not sure about the dclgen processing, but programming guide wrote.
The cblcnvrt cobol to caeasytrieve plus routine converts cobol file. I want to write a rexx procedure calling a cobol program in a os390 mvs environment. Its a flat data file without a structure imposed on it. Hi, i have a requirement to find out the name of the copybook for a dataset used in the jcl. I want to expand the copybook present in cobol program. Do i need to use the copybook multiple times replacing the start of variables so that the compiler views them as different things. Consider such simple options as redefines and occurs within occurs. It then calls a cobol program and sends this filename and copybook name to it so that the cobol program can read the file with its copybook layout. What you need to make sense of this would be a copybook that defines what the various data fields even are. Did dos zero out the bss area when it loaded a program. All we have to do is to type copyexp in command line after opening our cobol module.
Generic rexx utility expand external cobol copybooks sameer srivasatava. Hi, in the cobol program using rexx can we expand the copybooks then and there instead of going to coybooklibrary and look for it there. Cobol source code to native executable using intermediate c. How to convert cobol copybooks into easytrieve it would be nice to have them both in the same data dictionary. Could any one let me know how to convert a cobol copybook to a fileaid copybook using rexx. This will be really helpful for melooking for reply and your help in this regard. An xml parser written in the rexx programming language. Adding a field to an existing cobol data file stack overflow. In a cobol copybook, each level01 group item describes a record type in the application data set. The copybook has several groups in it and only need one of them to be in a table. Michael, fwiw, we use a single source file called source to store all of our program dds code cblle, rpgle, prtf, dspf, lf, pf, rexx, etc and have standardized on a source member naming convention that will not result in duplicates. Hi, is it possible in rexx program by taking reference as cobol copy book and need to write the data in other files,i want it to be done with the help from rexx so that this tool becomes independant of any hardcoded values, so that in case my copybook structure changes in future, i dont have to change rexx.
Need to convert cobol data file to csv, excel stack overflow. Can any one please help me in getting any program or utility or any other algorithm that can convert a cobol copybook to a ddl of a table. How to expand a copybook while looking into the source code hi, is there any tso command or any ispf command which will help me to expand my copybook while looking into the source code. I used to know rexx very well, though on the vmcms environment where it all. This app parses the copybook and provides the below information.
The information that describes the physical layout of program data that is, how the records and fields relate to each other is stored in a copybook file that is included in all of the applications that processes the file. This project is using ispf services to invoke the load module. Any part of your cobol program can be written into to a separate copy book and using copy command it can be. Now to insert this code in your programs, you merely code the copy statement in. Hello all, i am trying to prepare a tool which can expand a copybook used in a cobol program, this will help. The reason rexx was picked as the first soon to be project official extension language for gnucobol versus other candidates like tcl, lua, mruby, and guile is that rexx uses decimal arithmetic. There are three 3 ispf edit macros here, so you must partition this single item into three pieces. I need to create a rexx program that accepts a filename and the copybook name from the user. The layout specifies atleast the name of each field, its type, size, and position in the record. What the cobol compiler would do is expand this copybook inline. Hi everyone, i am working on a rexx code which would expand all submodules inside the calling program. In my rexx i allocate a dataset for the sysout and whatever is displayed by the cobol db2 program i extract and display that in a panel.
Some programming services are routines that let you interface with rexx and the language processor. If there are two copybooks which have same variables and we are using both the copybooks in our pro answer arpan or we can use replace option with the copybook in the cobol. If you took up the c programming course as one of your subjects, while you were in college, its easy to realise cobol copy books work just like include header files statement in c. Try %cblcnvrt macro of easytrieve i think its new function within 1. Rexx calling cobol with file and copybook parameters. What i do is to compile a cobol program with the compile listing to show.
Cb2xml copybook to xml is a cobol copybook to xml converter written in java and. The functionality of the macro is to expand the copybooks present in the cobol source code. How to expand a copy book while looking into the source code hi, is there any tso command or any ispf command which will help me to expand my copybook while looking into the source code. If you took up the c programming course as one of your subjects, while you were in college, its easy to realise cobol copybooks work just like include header files statement in c. Resolvingexpanding all copy statements to make single cobol. When you specify the copybook or copybooks on a panel, file manager compiles the descriptions into a template that you can save and reuse with any application data set that has the same record structure. I have a program which can be compiled with many different copybooks. The acronym rexx stands for restructured extended executor. The script is executing the cobol compiler in the background to compile the copybook in a small dummy cobol program that just copy the copybook. The reason why i want to expand the native source with copybooks and includes is, that i want to scan the expanded source code against rules e.
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