Question

I have a Long string from that I want to store the keyword in array or collection, the format of my string is like below:

Title: My Test Page Title.

Desc: My page description.

Keywords: Bessel function, legendre function, Differential Equations, Bessel, Legendre, Homogenous, Assignment & Maths Homework Help.

Bessel & Legendre Function:

Homogenous Equations of the second order of the type
+ x + ( – )y = 0, v [0, ), x [0, )………………….(1)
(1 – ) – 2x + n (n + 1)y = 0, n = 1, 2 ……, x (-1, 1)…………………(2)

In this String I want to store all Keywords in Array/collection split from comma.
My problem is that How I can find out the starting and ending point to split the keywords, I can get the Starting point from Keywords: but what should be my ending point to store the keyword in array/collection, there is no any fix format,
there is only one fix format which is there will be a Para after ending the Keyword section.

any one can suggest me regular expression for this.

Answer 1

there will be a Para

Seems like you should first split the string into lines.

And then the line that starts with Keywords: holds your keywords.

You can use the string.Split() method to split into lines as well as for breaking out the keywords.