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v/examples/regex/pcre.vv

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module main
// NB: you need to `v install pcre` to be able to compile this example.
import pcre
fn example() {
r := pcre.new_regex('Match everything after this: (.+)', 0) or {
println('An error occured!')
return
}
m := r.match_str('Match everything after this: "I VLang!"', 0, 0) or {
println('No match!')
return
}
// m.get(0) -> Match everything after this: "I ❤️ VLang!"
// m.get(1) -> "I ❤️ VLang!"'
// m.get(2) -> Error!
whole_match := m.get(0) or {
println('We matched nothing...')
return
}
matched_str := m.get(1) or {
println('We matched nothing...')
return
}
println(whole_match) // Match everything after this: "I ❤️ VLang!"
println(matched_str) // "I ❤️ VLang!"
}
fn main() {
example()
mut text := '[ an s. s! ]( wi4ki:something )
[ an s. s! ]( wi4ki:something )
[ an s. s! ](wiki:something)
[ an s. s! ](something)dd
d [ an s. s! ](something ) d
[ more text ]( something ) s [ something b ](something)dd
'
// check the regex on https://regex101.com/r/HdYya8/1/
regex := r'(\[[a-z\.\! ]*\]\( *\w*\:*\w* *\))*'
r := pcre.new_regex(regex, 0) or {
println('An error occured!')
return
}
m := r.match_str(text, 0, 0) or {
println('No match!')
return
}
whole_match1 := m.get(0) or {
println('We matched nothing 0...')
return
}
println(whole_match1)
println(m.get_all())
}