from_utf8          75 http/modules/ngx_http_charset_filter_module.c     unsigned                    from_utf8:1;
from_utf8         525 http/modules/ngx_http_charset_filter_module.c     ctx->from_utf8 = charsets[source_charset].utf8;
from_utf8         530 http/modules/ngx_http_charset_filter_module.c     if ((ctx->to_utf8 || ctx->from_utf8) && r == r->main) {
from_utf8         555 http/modules/ngx_http_charset_filter_module.c     if ((ctx->to_utf8 || ctx->from_utf8) || ctx->busy) {