extSubset         232 http/modules/ngx_http_xslt_filter_module.c                 ctx->ctxt->myDoc->extSubset = NULL;
extSubset         247 http/modules/ngx_http_xslt_filter_module.c             ctx->doc->extSubset = NULL;
extSubset         414 http/modules/ngx_http_xslt_filter_module.c     doc->extSubset = dtd;