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Diffstat (limited to 'src')
| -rw-r--r-- | src/core.lisp | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/src/core.lisp b/src/core.lisp new file mode 100644 index 0000000..4f88e5b --- /dev/null +++ b/src/core.lisp @@ -0,0 +1,204 @@ +;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10 -*- +(declaim (optimize (speed 0) (safety 3) (debug 3))) + +(defpackage :org-ckons-core + (:use :cl :cl-log)) + +(in-package #:org-ckons-core) + +(require :sb-introspect) + +(defvar *sendmail-debug* nil + "If non-`nil', email will be sent to the address contained in this +variable instead of the recipient supplied in the call to +`sendmail'.") + +;; needed for html.lisp +(defmacro with-gensyms (syms &body body) + `(let ,(mapcar (lambda (s) + `(,s (gensym))) + syms) + ,@body)) + +(defmacro once-only ((&rest names) &body body) + (let ((gensyms (loop for n in names collect (gensym)))) + `(let (,@(loop for g in gensyms collect `(,g (gensym)))) + `(let (,,@(loop for g in gensyms for n in names collect ``(,,g ,,n))) + ,(let (,@(loop for n in names for g in gensyms collect `(,n ,g))) + ,@body))))) + +(defmacro add-to-list (output-list &rest value-to-add) + "Wraps the SETF...APPEND idiom in a smaller package." + `(setf ,output-list (append ,output-list ,@value-to-add))) + +(defmacro format-list (format-string &body body) + `(format nil ,format-string ,@body)) + +(defun logger (output) + "Logs output to the cl-log log file. Also writes a timestamp to +standard output, which is very useful for correlating the log file and +the dribble file." + (let ((timestamp (net.telent.date:universal-time-to-rfc2822-date (get-universal-time)))) + (format t "LOG TIMESTAMP: ~a~%" timestamp) + (log-message :info (format nil "~a: ~a" timestamp output)))) + +(defun string-to-list (my-string) + "Converts a sequence to a list \(or whatever the sequence is a +string representation of\)." + (with-input-from-string (stream my-string) + (read stream))) + +(defmacro add-to-list (output-list &rest value-to-add) + "Wraps the SETF...APPEND idiom in a smaller package." + `(setf ,output-list (append ,output-list ,@value-to-add))) + +(defun parse-symbol (my-symbol) + (let ((symbol-parts (ppcre:split "::" (symbol-name my-symbol)))) + (if (= (length symbol-parts) 1) + (car symbol-parts) + (cadr symbol-parts)))) + +(defun flatten (mylist) + (cond ((atom mylist) mylist) + ((listp (car mylist)) + (append (flatten (car mylist)) (flatten (cdr mylist)))) + (t (append (list (car mylist)) (flatten (cdr mylist)))))) + +(defun match-it (regex field) + "Wraps a PCRE search in a smaller package." + (cl-ppcre:all-matches-as-strings regex field)) + +(defun cast-float (string-rep) + "Tries to return the float representation of `string-rep'. If +`string-rep' cannot be parsed as a float, returns `nil'." + (let ((read-value (read-from-string string-rep))) + (cond ((floatp read-value) read-value) + ((integerp read-value) (float read-value)) + (t nil)))) + +(defun pretty-print (raw-string &optional textbox-p) + "Filters `nil' string values, returning ` ' instead. But if +`textbox-p' is t, it returns an empty string instead of ` '." + (let ((trimmed-string (when raw-string (string-trim '(#\Space #\Tab) raw-string)))) + (if (and trimmed-string (> (length trimmed-string) 0)) + (format nil "~a" (ppcre:regex-replace-all "\"" trimmed-string """)) + (if textbox-p "" " ")))) + +(defun strip-milliseconds (sql-datetime) + (subseq sql-datetime 0 (position #\. sql-datetime))) + +#+sbcl +(defun map-slot-names (instance) + "Returns a list of the names of all the slots of any class instance +using reflection. The returned values are symbols. Only works with +SBCL." + (mapcar 'sb-mop:slot-definition-name (sb-mop:class-slots (class-of instance)))) + +(defun null-or-empty-p (sequence) + (or (null sequence) (equal (length sequence) 0))) + +(defun xml-escape (mystring) + (setf mystring (ppcre:regex-replace-all "<" mystring "<")) + (setf mystring (ppcre:regex-replace-all ">" mystring ">")) + (setf mystring (ppcre:regex-replace-all "&" mystring "&")) + (setf mystring (ppcre:regex-replace-all "\"" mystring """)) + (setf mystring (ppcre:regex-replace-all "'" mystring "'")) + mystring) + +(defun xml-unescape (mystring) + (setf mystring (ppcre:regex-replace-all "<" mystring "<")) + (setf mystring (ppcre:regex-replace-all ">" mystring ">")) + (setf mystring (ppcre:regex-replace-all "&" mystring "&")) + (setf mystring (ppcre:regex-replace-all """ mystring "\"")) + (setf mystring (ppcre:regex-replace-all "'" mystring "'")) + mystring) + +(defun trim-last-char (mystring) + (if (null-or-empty-p mystring) + "" + (subseq mystring 0 (- (length mystring) 1)))) + +(defun string-to-real (string-rep) + "Converts a string representation of a number to a rational +representation. For some reason, the lisp community calls rational +numbers `real'. If you pass this method garbage, you will get 0. It +always returns a number." + (if (null-or-empty-p string-rep) + 0 + (let* ((string-parts (ppcre:split "\\." (string-trim '(#\Space #\Tab) string-rep))) + (integer-portion (parse-integer (car string-parts) :junk-allowed t)) + (fractional-portion-string (second string-parts)) + (fractional-divisor 1)) + (multiple-value-bind (fractional-portion fractional-portion-length) + (if (> (length fractional-portion-string) 0) + (parse-integer fractional-portion-string :junk-allowed t) + (values nil 0)) + (when (null integer-portion) + (setf integer-portion 0)) + (when (null fractional-portion) + (setf fractional-portion 0)) + (when (not (= fractional-portion 0)) + (setf fractional-divisor (expt 10 fractional-portion-length))) + (if (>= integer-portion 0) + (+ integer-portion (/ fractional-portion fractional-divisor)) + (- integer-portion (/ fractional-portion fractional-divisor))))))) + +(defun real-to-string (real-rep &key (places 2)) + "Converts a rational representaion of a number into a string +representation, rounded to `places' decimal places." + (when real-rep + (if (= places 0) + (format nil "~a" (parse-integer (format nil "~,2f" real-rep) :junk-allowed t)) + (format nil + (format nil "~~,~af" places) + (coerce real-rep 'long-float))))) + +(defun double-to-real (double-rep &key (places 2)) + "Converts a double to a real. It does this by converting the double +to a string, and then the string to a real. Decimal place truncation +happens when converting to a string." + (string-to-real (real-to-string double-rep :places places))) + +(defun pad-with-zeros (string-rep places) + "Left-pads a string representaion of a number with leading zeros to +make it the specified length." + (loop for i from (+ (length string-rep) 1) to places do + (setf string-rep (format nil "0~a" string-rep))) + string-rep) + +(defun reduce-to-char-separated-string (mylist char) + (format nil "~a" (reduce (lambda (&optional x y) + (cond ((and x y) (format nil "~a~a~a" x char y)) + ((and x (not y)) (format nil "~a" x)) + ((and (not x) y) (format nil "~a" y)) + (t ""))) + mylist))) + +(defun reduce-to-comma-separated-string (mylist) + (reduce-to-char-separated-string mylist ",")) + +(defun reduce-to-newline-separated-string (mylist) + (reduce-to-char-separated-string mylist #\Newline)) + +(defun shell-wrapper (command) + "Calls a shell command and returns the output as a list, where each +atom of the list is a string that contains one line of the output." + (let ((output (make-array '(0) :element-type 'character :fill-pointer 0 :adjustable t))) + (with-output-to-string (stream output) + (uffi:run-shell-command command :output stream)) + (loop for line in (ppcre:split #\Newline output) + collect line))) + +(defmacro sendmail (mail-server from to subject message &key display-name reply-to html-message authentication attachments) + "Wrapper around `cl-smtp:send-email'. `attachments' needs to be a +list of `cl-smtp:attachment' objects if non-nil." + `(cl-smtp:send-email ,mail-server + ,from + ,(if *sendmail-debug* *sendmail-debug* to) + ,(if *sendmail-debug* (format nil "DEBUG ~a" subject) subject) + ,message + ,@(when display-name `(:display-name ,display-name)) + ,@(when reply-to `(:reply-to ,reply-to)) + ,@(when html-message `(:html-message ,html-message)) + ,@(when authentication `(:authentication ,authentication)) + ,@(when attachments `(:attachments ,attachments)))) |