For a client I have simple maintenance items list, containing recurring descriptions and codes made of a combination of letters and numbers.

Question

Is there a simple way to make sure that all the codes are recognized without them being counted as fuzzy matches (but as full reps). 
 MM57014 
 Emergency signals MM65015 FIFI Engine Baudouin 12M26.3 12M26.3 MM00000000 System component N/A MM21111003 Cooling system 16V4000M63R MM1011547 Pump set, electr. driven AKHA 5101.NA.RA.001.2H.4AC. 5.5kW MM38001 Exhaust lines/supports in engineroom

Jerzy Czopik · Accepted Answer

You don't state the version of your software, but starting from 2014 (methinks, it could also have been 2015) there is alphanumeric recognition integrated. So what you need is just to switch this on in your TM and project settings, then such parts should be recognized as repetitions. 
You can also try to use this regex (case sensitive) to filter them all out and confirm in one go: ^[-\p{Lu}0-9]*$

Jerzy Czopik · Answer

For Regex: 
 Go to Review tab, locate the display filter, select "case sensitive", enter the regex in the filter and press enter. 
 This should show only alphanumeric segments. You can now select them, copy source to target and confirm in one go.

Jerzy Czopik · Answer

The best info source is www.regular-expressions.info/ and the RegexBuddy, a small program from the author of this website (AFAIK). If you're from Germany, the BDÜ will certainly again offer a Regex seminar/webinar i the future (next year most probably).

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For a client I have simple maintenance items list, containing recurring descriptions and codes made of a combination of letters and numbers.