Techniques needed to write an arithmetic expression parser

Question

For some one how has only knowledge on tree data structure Is it evident for him to write an Arithmetic Expressions parser without the help of compilation techniques ?

Answer 1

Without knowledge of compilation techniques it would be ugly. But there is no need to learn a ton of compilation for an introductory example like this.

Look at something like http://www.codeproject.com/Articles/345888/How-to-write-a-simple-interpreter-in-JavaScript and see if it makes sense to you.