Presented without further comment

Node.js:

parser->method = (enum http_method) 0;
parser->index = 1;
switch (ch) {
  case 'C': parser->method = HTTP_CONNECT; /* or COPY, CHECKOUT */ break;
  case 'D': parser->method = HTTP_DELETE; break;
  case 'G': parser->method = HTTP_GET; break;
  case 'H': parser->method = HTTP_HEAD; break;
  case 'L': parser->method = HTTP_LOCK; break;
  case 'M': parser->method = HTTP_MKCOL; /* or MOVE, MKACTIVITY, MERGE, M-SEARCH */ break;
  case 'N': parser->method = HTTP_NOTIFY; break;
  case 'O': parser->method = HTTP_OPTIONS; break;
  case 'P': parser->method = HTTP_POST;
    /* or PROPFIND|PROPPATCH|PUT|PATCH|PURGE */
    break;
  case 'R': parser->method = HTTP_REPORT; break;
  case 'S': parser->method = HTTP_SUBSCRIBE; /* or SEARCH */ break;
  case 'T': parser->method = HTTP_TRACE; break;
  case 'U': parser->method = HTTP_UNLOCK; /* or UNSUBSCRIBE */ break;
  default:
    SET_ERRNO(HPE_INVALID_METHOD);
    goto error;
}
parser->state = s_req_method;

Via James Snell.