Remove all text between two brackets

Question

Suppose I have some text like this,

text<-c(\"[McCain]: We need tax policies that respect the wage earners and job creators. [Obama]: It\'s harder to save         


        

Answer 1

With this:

gsub("\\[[^\\]]*\\]", "", subject, perl=TRUE);

What the regex means:

  \[                       # '['
  [^\]]*                   # any character except: '\]' (0 or more
                           # times (matching the most amount possible))
  \]                       # ']'