Julia Quick Note [04] Regular Expression

Regular expression (example of writing)

note04

regex = r"H.*w"
m = match(regex, "I love Halloween!")
if isnothing(m)
    println("no match")
else
    println(m.match)      #Get the matched string
    println(m.offset)     #Get the matched position
end

Commentary

Regular expressions use the PCRE library. Prepend r to the string to indicate that it is a regular expression.

If it doesn't match the regular expression, the match function returns nothing. Use the isnothing () function to determine nothing.

If there is a match, an object of type RegexMatch is returned. You can get information such as matching strings and positions.

◆ Get the matched string ◆ Get the matched position

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Julia Quick Look Note [01] How to use variables and constants Julia Quick Look Note [02] Arithmetic Expressions, Operators [Julia Quick Note [03] Complex Numbers] (https://qiita.com/ttabata/items/225c77a4d71fafc3e482) Julia Quick Look Note [04] Regular Expression [Julia quick note [05] if statement] (https://qiita.com/ttabata/items/4f0bcff1e32f60402dfb)

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Related information

: paperclip: Julia --Official page https://julialang.org/

: paperclip: Julia --Japanese official document https://julia-doc-ja.readthedocs.io/ja/latest/index.html

: paperclip: First time Julia and installation (Windows & Linux) https://qiita.com/ttlabo/items/b05bb43d06239f968035

:paperclip: Julia - Mathematics https://docs.julialang.org/en/v1/base/math/

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