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  1. blah <- c('ASDF911 2346', 'E-COMMERCE', 'AMAZON E-COMMERCE', 'K-12 89752 911', '65426 -', 'TEACHERK-12', 'K9 OFFICER', 'WORK - K-9564', 'DEVELOPER C++', ' C+ C +5', 'DEFAULT - 456')
  2. gsub('(?:\\b(911\\b|E-COMMERCE\\b|K-12\\b|C\\b[+]{0,2})|[[:punct:]]|[A-Z-]*[0-9][A-Z0-9-]*)', '\\1', blah, perl = TRUE)
Success #stdin #stdout 0.3s 22832KB
comments (?)
stdin 
Standard input is empty
stdout 
 [1] " "                 "E-COMMERCE"        "AMAZON E-COMMERCE"
 [4] "K-12  911"         " "                 ""                 
 [7] " OFFICER"          "WORK  "            "DEVELOPER C++"    
[10] " C+ C "            "DEFAULT  "
https://ideone.com/E3TUU5
language:
R (R 3.5.2)
created:
11 years ago
visibility:
public

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