Parse delimited file

What does that give us? That gives us a little two-item array named arrName, an array that looks like this:. Well, what do you know: the second item in our mini-array index number 1 just happens to be the user name. That means we can grab the name simply by assigning the value of array item 1 to the variable strName, which is what we do in our second line of code.

Get the idea? We then repeat the process with index numbers 2 address and 3 phone number , like so:. We now have three variables — strName, strAddress, and strPhone — that contain information parsed from the text file.

That means that our next step is to begin constructing the CSV file. What value are we assigning to strNewContent? Why such a complicated construction? For example, suppose a user has the name Ken Myer, Jr.

To prevent that from happening we enclose each value in double quotes, like so:. In a CSV file, items enclosed in double quotes are treated as a single value, even if the value includes commas. After that we then loop around and repeat the process with the next line in the tab-delimited file. To do that we first close the file Test. Because DM needed a header line the first thing we do to our new file is use this line of code to write a header to the thing:. And then all we have to do is use the Write method to write the value of strNewContent to the file.

And then use the Close method to close Test. At that point we — just like the hitters that had to go up against the Scripting Son — are finished. Privacy policy. The TextFieldParser object allows you to parse and process very large file that are structured as delimited-width columns of text, such as log files or legacy database information.

Parsing a text file with TextFieldParser is similar to iterating over a text file, while the parse method to extract fields of text is similar to string manipulation methods used to tokenize delimited strings.

Text files may have fields of various width, delimited by a character such as a comma or a tab space. Define TextFieldType and the delimiter, as in the following example, which uses the SetDelimiters method to define a tab-delimited text file:. Other text files may have field widths that are fixed. In such cases, you need to define the TextFieldType as FixedWidth and define the widths of each field, as in the following example.

This example uses the SetFieldWidths method to define the columns of text: the first column is 5 characters wide, the second is 10, the third is 11, and the fourth is of variable width. Note: Name and age should be created already as a pega property. If no pega property is available, then page validation may fail. Step 3: Execute. No need to trace. Click on the clipboard to check the page Work in thread standard. Step 5: provide the input value corresponding to the header we parsed in last run.

Note: Only build tag list creates a new page Work and save the header in pyTagList. Use tag list method uses the. Build tag list parses the header line and use tag list saves the data corresponding to the parse header line. You can check the underlying Java code. ParseCsvDetail — Finds the workpage and uses the. How to use parse delimited in activity rule? Note: In activity rule you can always parse a string using a delimiter.

Step 4: Now, add a new step in the activity rule with method Apply-Parse-Delimited and add the Parse delimited rule. Published in Integration. Is it possible to post the article on parsing the excel file and creating the operators based on the data. Hi Prem, It is a very good explanation.

As I am new to pega have some basic doubts. I tried to test this example but I was struck at Tracer Unable to find the field names whare to verify the mapped properties. Can you please explain how to use the tracer Debugging and Breakpoints as well. Once again you are doing a fabulous job by providing real-time examples with step by step explanation. Thank you for the post Prem. Could you please explain file listener and email listener part with examples. We have a scenario to parse a file Example arun93 Need to map this to Name Arun Year 93 After parsing final activity will executes.

Here my problem is if I receive wrong format parsing fails and coming out of service file rule instead of executing final activity. Fantastic Explanation and also HOW to use the tracer to find errors while processing.

I tried to use this Apply-Parse-Delimited before but could never understand the options and the PDN help was even more confusing! Thanks to you I am able to use this Parse-Delimited. How the Escape character works.. Hi Prem, Nice Post. Can u please tell how can we add multiple delimiters in the Parse Delimited Rule? Superb explanation.. Please help me out. Use parse details option in Processing method, you used two clipboard properties pylabel and pynote, what if I need more than 2, which properties I need to refer?

How does Build Taglist and use tag list work? As I understand from the post, build tag list only parses first row and then use tag list parses remaining all details rows.

A I right? Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Compliance score, Guardrail warnings and custom warning.

Loggers and Log categories in Pega.