;;;; Programmer: Kevin M. Rosenberg
;;;; Date Started: Apr 2000
;;;;
-;;;; $Id: strings.lisp,v 1.33 2003/05/17 07:34:45 kevin Exp $
+;;;; $Id: strings.lisp,v 1.37 2003/06/12 02:38:39 kevin Exp $
;;;;
;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
;;;;
;;;; *************************************************************************
-(in-package :kmrcl)
+(in-package #:kmrcl)
;;; Strings
(declare (fixnum i))
(when (char= char (schar string i)) (return i))))
+(defun position-not-char (char string start max)
+ (declare (optimize (speed 3) (safety 0) (space 0))
+ (fixnum start max) (simple-string string))
+ (do* ((i start (1+ i)))
+ ((= i max) nil)
+ (declare (fixnum i))
+ (when (char/= char (schar string i)) (return i))))
+
(defun delimited-string-to-list (string &optional (separator #\space)
skip-terminal)
"split a string with delimiter"
(setq pos (1+ end))))
-(defun list-to-delimited-string (list &optional (separator #\space))
- (format nil (format nil "~~{~~A~~^~A~~}" separator) list))
+(defun list-to-delimited-string (list &optional (separator " "))
+ (format nil (concatenate 'string "~{~A~^" (string separator) "~}") list))
(defun string-invert (str)
"Invert case of a string"
(null (find-if #'not-whitespace? str))))
(defun replaced-string-length (str repl-alist)
- (declare (string str))
+ (declare (simple-string str))
(let* ((orig-len (length str))
(new-len orig-len))
(declare (fixnum orig-len new-len))
(if match
(let* ((subst (cdr match))
(len (length subst)))
- (declare (fixnum len))
+ (declare (fixnum len)
+ (simple-string subst))
(dotimes (j len)
(declare (fixnum j))
(setf (char new-string dpos) (char subst j))
(defun escape-xml-string (string)
"Escape invalid XML characters"
- (substitute-chars-strings
- string '((#\& . "&") (#\> . ">") (#\< . "<") (#\" . """))))
-
+ (substitute-chars-strings string '((#\& . "&") (#\< . "<"))))
(defun make-usb8-array (len)
- (make-array len :adjustable nil
- :fill-pointer nil
- :element-type '(unsigned-byte 8)))
+ (make-array len :element-type '(unsigned-byte 8)))
(defun usb8-array-to-string (vec)
+ (declare (type (simple-array (unsigned-byte 8) (*)) vec))
(let* ((len (length vec))
(str (make-string len)))
(declare (fixnum len)
(simple-string str)
(optimize (speed 3)))
- (dotimes (i len)
+ (do ((i 0 (1+ i)))
+ ((= i len) str)
(declare (fixnum i))
- (setf (schar str i) (code-char (aref vec i))))
- str))
+ (setf (schar str i) (code-char (aref vec i))))))
(defun string-to-usb8-array (str)
+ (declare (simple-string str))
(let* ((len (length str))
(vec (make-usb8-array len)))
(declare (fixnum len)
- (type (array fixnum (*)) vec)
+ (type (simple-array (unsigned-byte 8) (*)) vec)
(optimize (speed 3)))
- (dotimes (i len)
+ (do ((i 0 (1+ i)))
+ ((= i len) vec)
(declare (fixnum i))
- (setf (aref vec i) (char-code (schar str i))))
- vec))
+ (setf (aref vec i) (char-code (schar str i))))))
(defun concat-separated-strings (separator &rest lists)
- (format nil (format nil "~~{~~A~~^~A~~}" separator) (append-sublists lists)))
+ (format nil (concatenate 'string "~{~A~^" (string separator) "~}")
+ (append-sublists lists)))
(defun only-null-list-elements-p (lst)
(or (null lst) (every #'null lst)))
(pos (1- len) (1- pos))
(mod (mod val 10) (mod val 10)))
((or (zerop val) (minusp pos))
- (when minus? (setf (schar result (if pchar 1 0)) #\-))
+ (when minus? (setf (schar result 0) #\-))
result)
(declare (fixnum mod zero-code pos) (simple-string result) (integer val))
(setf (schar result pos) (code-char (+ zero-code mod)))))
+
+(defun fast-string-search (substr str substr-length startpos endpos)
+ "Optimized search for a substring in a simple-string"
+ (declare (simple-string substr str)
+ (fixnum substr-length startpos endpos)
+ (optimize (speed 3) (space 0) (safety 0)))
+ (do* ((pos startpos (1+ pos))
+ (lastpos (- endpos substr-length)))
+ ((> pos lastpos) nil)
+ (declare (fixnum pos lastpos))
+ (do ((i 0 (1+ i)))
+ ((= i substr-length)
+ (return-from fast-string-search pos))
+ (declare (fixnum i))
+ (unless (char= (schar str (+ i pos)) (schar substr i))
+ (return nil)))))
+
+(defun string-to-list-skip-delimiter (str &optional (delim #\space))
+ "Return a list of strings, delimited by spaces, skipping spaces."
+ (declare (simple-string str)
+ (optimize (speed 0) (space 0) (safety 0)))
+ (do* ((results '())
+ (end (length str))
+ (i (position-not-char delim str 0 end)
+ (position-not-char delim str j end))
+ (j (when i (position-char delim str i end))
+ (when i (position-char delim str i end))))
+ ((or (null i) (null j))
+ (when (and i (< i end))
+ (push (subseq str i end) results))
+ (nreverse results))
+ (declare (fixnum i j end))
+ (push (subseq str i j) results)))
+
+(defun string-starts-with (start str)
+ (and (>= (length str) (length start))
+ (string-equal start str :end2 (length start))))