Substitute Variables VI does not work for names with underbars. What can I do?

For example, I want to change "p_0=p_1+p_2;" into "x0=x1+x2;". However the VI does not do it and returns just the same formula. Is this the specification? I enclosed a sample VI to show it.
Attachments:
SubTest.vi ‏44 KB

You problem is in "Find String Identifier" (a subVI of "Substitue Variables") - it searches your variables and tries to split any other characters out of it (it only accepts alphanumeric and spaces as variable names, not special characters - hence your "p_0" becomes "p", and then "p" is not found in your substitution rules, so the original is piped through instead.
Copyright © 2004-2015 Christopher G. Relf. Some Rights Reserved. This posting is licensed under a Creative Commons Attribution 2.5 License.

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