nginx-luaHow to use regex

server {
  location / {
    content_by_lua_block {
      local str = 'Hi, Donald! Do you like Joe?';
      local n1, n2 = str:match('(D.+\\?)!.+(J.+)?')
      
      ngx.say(n1)
      ngx.say(n2)
    }
  }
}ctrl + cgithub

`content_by_lua_block` nginx-lua module directive to specify block of Lua code	`local str` sample string to run regex on
`n1, n2` these variables will store captured groups from matches	`str:match` run regex expression on `str`
`ngx.say` output given text to client

Usage example

local str = 'Hi, Donald! Do you like Joe?';
local n1, n2 = str:match('(D.+\\?)!.+(J.+)?')

ngx.say(n1)
ngx.say(n2)

output

Donald
Joe

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