Dynamic String Replace

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Hi,

I have a string which is generated dynamically, the string is basically an JSON string. Each time the string is generated few words in the string gets changing, how can i parse these words so that i replace them with some constant word of my own.

The string looks like this
"end_location":{"Za":17.44716,"$a":78.37790999999993},"start_address":"Mumbai Rd, Madhura Nagar Colony, Madhapur, Hyderabad, Andhra Pradesh, India","start_location":{"Za":17.4243,"$a":78.37761999999998},

With even more data before and after this sample string. Now the result what i get has Za and $a(in bold) which always keeps changing to different value. How can i replace these words with some constant word.

Posted 20-Apr-12 8:07am

manu g m

Updated 20-Apr-12 8:08am

v2

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2 solutions

Solution 2

Thanks for the helpfull answers.
I solved the problem in this manner. First i used regex to identify the changed keywords, once the keywords are known i replaced these with required keywords of my own.

Posted 21-Apr-12 0:07am

manu g m

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Eugene Sadovoi · Accepted Answer · 2012-04-20T08:36:00

Solution 1

The easiest way of doing it would be by using Regex class.

C#

content = Regex.Replace(content, searchText, replaceText);

For more information on how to use Regex please follow this link[^]

Posted 20-Apr-12 8:36am

Eugene Sadovoi

Comments

manu g m 20-Apr-12 14:40pm

Thanks for the reply. I can use Regex if i know the exact word, since in my case the words keeps changing i wont know what will be the exact word to replace. I have to replace based on the other supporting characters like {,:, "".

Nelek 20-Apr-12 16:08pm

If it is always in the same format, then you can search for ": and check if next letter is a number. If yes, go back to the previous " counting the number of chars between and you have found one of the words you are looking for.

Eugene Sadovoi 20-Apr-12 16:08pm

Regex allows you to search for patterns. Something like this: a text between either characters {,[ and ],} with text being just numbers.
What I am trying to say Regex is a powerful search and replace engine with its own small language.

Eugene Sadovoi 20-Apr-12 16:17pm

You could post 2 - 3 samples of the source string and what you wanted it to look like and we could help you with the patern.