Debugger entered--Lisp error: (error "Stack overflow in regexp matcher") looking-at("\\(\\(?:\\(xmlns\\)\\|[_[:alpha:]][-._[:alnum:]]*\\)\\(:[_[:alpha:]][-._[:alnum:]]*\\)?\\)[ \n]*=\\(?:[ \n]*\\('[^<'& \n ]*\\([& \n ][^<']*\\)?'\\|\"[^<\"& \n ]*\\([& \n ][^<\"]*\\)?\"\\)\\(?:\\([ \n]*>\\)\\|\\(?:\\([ \n]*/\\)\\(>\\)?\\)\\|\\([ \n]+\\)\\)\\)?") xmltok-scan-attributes() xmltok-scan-after-lt() xmltok-forward() rng-forward() rng-do-some-validation-1(rng-validate-while-idle-continue-p) rng-do-some-validation(rng-validate-while-idle-continue-p) rng-validate-while-idle(#) #[nil "\204\301\302!\210\303\304\305\302\306$\210\303\307\310\302\306$\210\303\311\312\302\306$\210\303\313\314\302\306$\210\303\315\316\302\306$\210\317 \210\320 \210\321p\322\"\205;\323p!\207" [rng-current-schema rng-set-schema-file-1 nil add-hook rng-schema-change-hook rng-validate-clear t after-change-functions rng-after-change-function kill-buffer-hook rng-kill-timers echo-area-clear-hook rng-echo-area-clear-function post-command-hook rng-maybe-echo-error-at-point rng-match-init-buffer rng-activate-timers get-buffer-window visible rng-validate-while-idle] 5]() rng-validate-mode(1) rng-nxml-mode-init() nxml-mode() (progn (switch-to-buffer (find-file (url-file-local-copy "http://karme.de/delme/test.svg"))) (nxml-mode) (switch-to-buffer "*Messages*")) eval((progn (switch-to-buffer (find-file (url-file-local-copy "http://karme.de/delme/test.svg"))) (nxml-mode) (switch-to-buffer "*Messages*")) nil) elisp--eval-last-sexp(t) eval-last-sexp(t) eval-print-last-sexp(nil) funcall-interactively(eval-print-last-sexp nil) call-interactively(eval-print-last-sexp nil nil) command-execute(eval-print-last-sexp)