'R Regex expression with gsub

I am using gsub regex to select last part of expression

Example:

  • "Bla-text-01" - I want -> "text-01"
  • "Name-xpto-08" - I want -> "xpto-08"
  • "text-text-04" - I want -> "text-04"
  • "new-blaxpto-morexpto-07" - I want -> "morexpto-07"
  • "new-new-new-bla-ready-05" - I want -> "ready-05"

I created this code that works with first 3 cases but now I have a new request to also work with 5 cases.

gsub(x = match$id,
          pattern =  "(.*?-)(.*)",
          replacement = "\\2")

Can you help me?

rregexgsub


Solution 1:[1]

x <- c("Bla-text-01",
       "Name-xpto-08", 
       "text-text-04", 
       "new-blaxpto-morexpto-07", 
       "new-new-new-bla-ready-05")

sub("^.*-([^-]*-[^-]*)$", "\\1", x)
## [1] "text-01"     "xpto-08"     "text-04"     "morexpto-07" "ready-05"

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Mikael Jagan

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