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authorIndrajith K L2022-12-03 17:00:20 +0530
committerIndrajith K L2022-12-03 17:00:20 +0530
commitf5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch)
tree2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/old/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())
+}