REGEX to find exact match of words (no other words should exist)

Question

I need logical AND in regex.

something like

real AND substance (or simply subs)

agree with only following string (in any order)

Real Substance

but not

Real Substance External

Real substance group

I need to use the REGEX in SAP ABAP. Please help.

What you need is not clear. Please post an [MCVE](https://stackoverflow.com/help/mcve). — PJProudhon, Feb 02 '18 at 08:07
Possible duplicate of [Regular Expressions: Is there an AND operator?](https://stackoverflow.com/questions/469913/regular-expressions-is-there-an-and-operator) — ctwheels, Feb 02 '18 at 19:53

score 2 · Answer 1 · answered Feb 04 '18 at 21:03

2

Alexander's answer assumes that Regular Expressions in ABAP accept the modifiers *? and ?? but they don't, so simply use * and ? instead, as follows:

^(?:real\s*subs(?:tance)?|subs(?:tance)?\s*real)$

answered Feb 04 '18 at 21:03

Sandra Rossi

score 1 · Answer 2 · answered Feb 02 '18 at 14:13

UPDATE TO ALLOW for "subs"

Naive approach would be:

^(?:real\s*?subs(?:tance)??|subs(?:tance)??\s*?real)$

Don't know if your tool allows flags; use "i" to make case-insensitive.

2 Answers2