X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=contrib%2Fsb-aclrepl%2Frepl.lisp;h=c3377e7b9285d396ee84807820672c57b9b8a8d9;hb=1b650be8b800cf96e2c268ae317fb26d0bf36827;hp=ce1498cfccf9bd511a7551299a15ac647e42b6e0;hpb=d36b416ae1fe7ba8a8d8e4ad7493458638028075;p=sbcl.git diff --git a/contrib/sb-aclrepl/repl.lisp b/contrib/sb-aclrepl/repl.lisp index ce1498c..c3377e7 100644 --- a/contrib/sb-aclrepl/repl.lisp +++ b/contrib/sb-aclrepl/repl.lisp @@ -86,6 +86,107 @@ (defun read-cmd (input-stream) ;; Reads a command from the user and returns a user-cmd object + (let ((next-char (peek-char-non-whitespace input-stream))) + (cond + ((eql *command-char* next-char) + (dispatch-command-line input-stream)) + ((eql #\newline next-char) + (read-char input-stream) + *null-cmd*) + ((eql :eof next-char) + *eof-cmd*) + (t + (let* ((eof (cons nil *eof-marker*)) + (form (read input-stream nil eof))) + (if (eq form eof) + *eof-cmd* + (make-user-cmd :input form :func nil :hnum *cmd-number*))))))) + +(defun dispatch-command-line (input-stream) + "Processes an input line that starts with *command-char*" + (let* ((line (string-trim-whitespace (read-line input-stream))) + (first-space-pos (position #\space line)) + (cmd-string (subseq line 1 first-space-pos)) + (cmd-args-string + (if first-space-pos + (string-trim-whitespace (subseq line first-space-pos)) + ""))) + (declare (simple-string line)) + (cond + ((or (zerop (length cmd-string)) + (whitespace-char-p (char cmd-string 0))) + *null-cmd*) + ((or (numberp (read-from-string cmd-string)) + (char= (char cmd-string 0) #\+) + (char= (char cmd-string 0) #\-)) + (process-cmd-numeric cmd-string cmd-args-string)) + ((char= (char cmd-string 0) *command-char*) + (process-history-search (subseq cmd-string 1) cmd-args-string)) + (t + (process-cmd-text cmd-string line cmd-args-string))))) + +(defun process-cmd-numeric (cmd-string cmd-args-string) + "Process a numeric cmd, such as ':123'" + (let* ((first-char (char cmd-string 0)) + (number-string (if (digit-char-p first-char) + cmd-string + (subseq cmd-string 1))) + (is-minus (char= first-char #\-)) + (raw-number (read-from-string number-string)) + (number (if is-minus + (- *cmd-number* raw-number) + raw-number)) + (cmd (get-history number))) + (when (eq cmd *null-cmd*) + (return-from process-cmd-numeric + (make-user-cmd :func :history-error :input (read-from-string + cmd-string)))) + (maybe-return-history-cmd cmd cmd-args-string))) + +(defun maybe-return-history-cmd (cmd cmd-args-string) + (format *output* "~A~%" (user-cmd-input cmd)) + (let ((dont-redo + (when (and (stringp cmd-args-string) + (plusp (length cmd-args-string)) + (char= #\? (char cmd-args-string 0))) + (do ((line nil (read-line *input*))) + ((and line (or (zerop (length line)) + (string-equal line "Y") + (string-equal line "N"))) + (when (string-equal line "N") + t)) + (when line + (format *output* "Type \"y\" for yes or \"n\" for no.~%")) + (format *output* "redo? [y] ") + (force-output *output*))))) + (if dont-redo + *null-cmd* + (make-user-cmd :func (user-cmd-func cmd) + :input (user-cmd-input cmd) + :args (user-cmd-args cmd) + :hnum *cmd-number*)))) + + +(defun find-history-matching-pattern (cmd-string) + "Return history item matching cmd-string or NIL if not found" + (dolist (his *history* nil) + (let* ((input (user-cmd-input his)) + (string-input (if (stringp input) + input + (write-to-string input)))) + (when (search cmd-string string-input :test #'string-equal) + (return-from find-history-matching-pattern his))))) + +(defun process-history-search (pattern cmd-args-string) + (let ((cmd (find-history-matching-pattern pattern))) + (unless cmd + (format *output* "No match on history list with pattern ~S~%" pattern) + (return-from process-history-search *null-cmd*)) + (maybe-return-history-cmd cmd cmd-args-string))) + + +(defun process-cmd-text (cmd-string line cmd-args-string) + "Process a text cmd, such as ':ld a b c'" (flet ((parse-args (parsing args-string) (case parsing (:string @@ -98,53 +199,16 @@ (loop as arg = (read string-stream nil eof) until (eq arg eof) collect arg)))))) - (let ((next-char (peek-char-non-whitespace input-stream))) - (cond - ((eql next-char *command-char*) - (let* ((line (string-trim-whitespace (read-line input-stream))) - (first-space-pos (position #\space line)) - (cmd-string (subseq line 1 first-space-pos)) - (cmd-args-string - (if first-space-pos - (string-trim-whitespace (subseq line first-space-pos)) - ""))) - (declare (string line)) - (cond - ((numberp (read-from-string cmd-string)) - (let ((cmd (get-history (read-from-string cmd-string)))) - (if (eq cmd *null-cmd*) - (make-user-cmd :func :history-error - :input (read-from-string cmd-string)) - (make-user-cmd :func (user-cmd-func cmd) - :input (user-cmd-input cmd) - :args (user-cmd-args cmd) - :hnum *cmd-number*)))) - ((or (zerop (length cmd-string)) - (whitespace-char-p (char cmd-string 0))) - *null-cmd*) - (t - (let ((cmd-entry (find-cmd cmd-string))) - (if cmd-entry - (make-user-cmd :func (cmd-table-entry-func cmd-entry) - :input line - :args (parse-args - (cmd-table-entry-parsing cmd-entry) - cmd-args-string) - :hnum *cmd-number*) - (make-user-cmd :func :cmd-error - :input cmd-string))))))) - ((eql next-char #\newline) - (read-char input-stream) - *null-cmd*) - ((eql next-char :eof) - *eof-cmd*) - (t - (let* ((eof (cons nil *eof-marker*)) - (form (read input-stream nil eof))) - (if (eq form eof) - *eof-cmd* - (make-user-cmd :input form :func nil :hnum *cmd-number*)))))))) - + (let ((cmd-entry (find-cmd cmd-string))) + (unless cmd-entry + (return-from process-cmd-text + (make-user-cmd :func :cmd-error :input cmd-string))) + (make-user-cmd :func (cmd-table-entry-func cmd-entry) + :input line + :args (parse-args (cmd-table-entry-parsing cmd-entry) + cmd-args-string) + :hnum *cmd-number*)))) + (defun make-cte (name-param func desc parsing group abbr-len) (let ((name (etypecase name-param (string @@ -347,6 +411,7 @@ (defun apropos-cmd (string) (apropos (string-upcase string)) + (fresh-line *output*) (values)) (let ((last-files-loaded nil)) @@ -423,7 +488,7 @@ (defun pushd-cmd (string-arg) (push string-arg *dir-stack*) - (cd-cmd *output* string-arg) + (cd-cmd string-arg) (values)) (defun popd-cmd () @@ -733,6 +798,7 @@ (let ((stopped-threads (sb-thread::waitqueue-data lock))) (when stopped-threads (format stream "~{~&Thread ~A suspended~}~%" stopped-threads)))) + (fresh-line stream) (if (functionp *prompt*) (write-string (funcall *prompt* break-level @@ -751,7 +817,7 @@ (error () (format stream "~&Prompt error> ")) (:no-error (prompt) - (format stream "~&~A" prompt)))))) + (format stream "~A" prompt)))))) (defun process-cmd (user-cmd) ;; Processes a user command. Returns t if the user-cmd was a top-level @@ -775,7 +841,7 @@ ((functionp (user-cmd-func user-cmd)) (add-to-history user-cmd) (apply (user-cmd-func user-cmd) (user-cmd-args user-cmd)) - (fresh-line) + ;;(fresh-line) t) (t (add-to-history user-cmd)