Working with Strings

Regex

You can also use regular expressions. They are very useful to parse text files.

line = ">sp|O43521|B2L11_HUMAN Bcl-2-like protein 11 OS=Homo sapiens OX=9606 GN=BCL2L11 PE=1 SV=1"

">sp|O43521|B2L11_HUMAN Bcl-2-like protein 11 OS=Homo sapiens OX=9606 GN=BCL2L11 PE=1 SV=1"

regex = r"^>\w+\|(\w+)\|"

r"^>\w+\|(\w+)\|"

m = match(regex, line)

RegexMatch(">sp|O43521|", 1="O43521")

if m !== nothing
    println(m[1])
end

O43521

String interpolation

You can interpolate values, single variables or the result of more complex expressions, into strings using $:

a = 1
b = 2
"$a + $b is $(a + b)"

"1 + 2 is 3"

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