On 2020-09-13 18:40, Raghu Ram Baisani wrote:
Hi
I'm returning a JSON output from the puppet task which is written in
PowerShell(.ps1) file.
The output returned from the task is a JSON value.
I have a plan in which I'm calling puppet task which is written in
PowerShell and after getting the result I'm using parsejson function to
parse the output received inside the plan.
*Example for the JSON returned by task:
*
{
"height": "5\\11",
"name": "Raghuram"
}
after calling parsejson on the above json string I received below object,
{
"height": "511",
"name": "Raghuram"
}
the slashes are getting removed in the parsed object of JSON string.
After googling,
I used this Link
<https://stackoverflow.com/questions/41290380/ruby-json-parse-stripping-escaped-back-slashes-from-string> and
put three slashes in the input string.
*Input:*
{
"height": "5\\\11",
"name": "Raghuram"
}
then also I got the same output with all the slashes removed.
I need any tricks/tips to mitigate this issue.
*Excepted Output:*
{
"height": "5\11",
"name": "Raghuram"
}
The thing with backslash escapes is that it is easy to be tricked by the
representation the original string is written in, and the representation
that it is presented in. For example if writing this in Ruby:
a = "5\\11"
then a will be a string that has the characters 'a', `\', '1', '1' since
the backslash is escaped it results in one. Now, if this is fed to json
to be parsed it is thus given "5\11" and since "\1" is not a recognized
escape sequence it just drops the backslash.
If you use three backslashes, the Ruby string "5\\\11" and parse that as
JSON the parser gets "5\\11" which to JSON means the desired result of
"5\11" - HOWEVER, if you look at that result in Ruby it presents that as
a valid Ruby source string and it displays "5\\11" which may lead you to
believe that it did not work.
Here is an example:
irb(main):020:0> JSON.parse('{"foo": "5\\\11"}')["foo"].chars
=> ["5", "\\", "1", "1"]
as you can see the backslash char is shown as a string with two backslashes.
And if you do this:
irb(main):021:0> a = JSON.parse('{"foo": "5\\\11"}')["foo"].bytes
=> [53, 92, 49, 49]
You see that it indeed only has one backslash char in the resulting string.
Hope this helps you.
Best,
- henrik
Thanks
Raghuram Baisani
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