+/* -*-c-*-
+ *
+ * $Id: str.c,v 1.1 1999/05/17 20:37:01 mdw Exp $
+ *
+ * Functions for hacking with strings
+ *
+ * (c) 1999 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------*
+ *
+ * This file is part of the mLib utilities library.
+ *
+ * mLib is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * mLib is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with mLib; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*----- Revision history --------------------------------------------------*
+ *
+ * $Log: str.c,v $
+ * Revision 1.1 1999/05/17 20:37:01 mdw
+ * Some trivial string hacks.
+ *
+ */
+
+/*----- Header files ------------------------------------------------------*/
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "str.h"
+
+/*----- Main code ---------------------------------------------------------*/
+
+/* --- @str_getword@ --- *
+ *
+ * Arguments: @char **pp@ = address of pointer into string
+ *
+ * Returns: Pointer to the next space-separated word from the string,
+ * or null.
+ *
+ * Use: Parses off space-separated words from a string.
+ */
+
+char *str_getword(char **pp)
+{
+ char *p = *pp, *q;
+
+ if (!p)
+ return (0);
+
+ while (isspace((unsigned char)*p))
+ p++;
+
+ for (q = p; *q; q++) {
+ if (isspace((unsigned char)*q)) {
+ *q = 0;
+ *pp = q + 1;
+ return (p);
+ }
+ }
+
+ *pp = 0;
+ return (p);
+}
+
+/* --- @str_split@ --- *
+ *
+ * Arguments: @char *p@ = pointer to string
+ * @char *v[]@ = pointer to array to fill in
+ * @size_t c@ = count of strings to fill in
+ *
+ * Returns: Number of strings filled in.
+ *
+ * Use: Fills an array with pointers to the individual words of a
+ * string. The string is modified in place to contain zero
+ * bytes at the word boundaries, and the words have leading
+ * and trailing space stripped off. No more than @c@ words
+ * are read; the actual number is returned as the value of the
+ * function. Unused slots in the array are populated with
+ * null bytes.
+ */
+
+size_t str_split(char *p, char *v[], size_t c)
+{
+ size_t n = 0;
+ char *q;
+
+ while (c && (q = str_getword(&p)) != 0) {
+ *v++ = q;
+ c--;
+ n++;
+ }
+
+ while (c) {
+ *v++ = 0;
+ c--;
+ }
+ return (n);
+}
+
+/* --- @str_sanitize@ --- *
+ *
+ * Arguments: @char *d@ = destination buffer
+ * @const char *p@ = pointer to source string
+ * @size_t sz@ = size of destination buffer
+ *
+ * Returns: ---
+ *
+ * Use: Writes a string into a buffer, being careful not to overflow
+ * the buffer, to null terminate the result, and to prevent
+ * nasty nonprintable characters ending up in the buffer.
+ */
+
+void str_sanitize(char *d, const char *p, size_t sz)
+{
+ if (!sz)
+ return;
+ sz--;
+ while (*p && sz) {
+ int ch = *p++;
+ if (!isgraph((unsigned char)ch))
+ ch = '_';
+ *d++ = ch;
+ sz--;
+ }
+ *d++ = 0;
+}
+
+/*----- That's all, folks -------------------------------------------------*/
~mdw / mLib / commitdiff