github.com/benhoyt/goawk@v1.8.1/testdata/gawk/gsubtest.awk (about)

     1  BEGIN {
     2  	str = "abc"; print gsub("b+", "FOO", str), str
     3  	str = "abc"; print gsub("x*", "X", str), str
     4  	str = "abc"; print gsub("b*", "X", str), str
     5  	str = "abc"; print gsub("c", "X", str), str
     6  	str = "abc"; print gsub("c+", "X", str), str
     7  	str = "abc"; print gsub("x*$", "X", str), str
     8  	str = "abc"; print gsub("b|$", "X", str), str
     9  }