3 * $Id: str.c,v 1.2 1999/05/26 20:52:57 mdw Exp $
5 * Functions for hacking with strings
7 * (c) 1999 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of the mLib utilities library.
14 * mLib is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU Library General Public License as
16 * published by the Free Software Foundation; either version 2 of the
17 * License, or (at your option) any later version.
19 * mLib is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU Library General Public License for more details.
24 * You should have received a copy of the GNU Library General Public
25 * License along with mLib; if not, write to the Free
26 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
30 /*----- Revision history --------------------------------------------------*
33 * Revision 1.2 1999/05/26 20:52:57 mdw
34 * Add new `rest' argument for `str_split'.
36 * Revision 1.1 1999/05/17 20:37:01 mdw
37 * Some trivial string hacks.
41 /*----- Header files ------------------------------------------------------*/
50 /*----- Main code ---------------------------------------------------------*/
52 /* --- @str_getword@ --- *
54 * Arguments: @char **pp@ = address of pointer into string
56 * Returns: Pointer to the next space-separated word from the string,
59 * Use: Parses off space-separated words from a string.
62 char *str_getword(char **pp
)
69 while (isspace((unsigned char)*p
))
72 for (q
= p
; *q
; q
++) {
73 if (isspace((unsigned char)*q
)) {
84 /* --- @str_split@ --- *
86 * Arguments: @char *p@ = pointer to string
87 * @char *v[]@ = pointer to array to fill in
88 * @size_t c@ = count of strings to fill in
89 * @char **rest@ = where to store the remainder of the string
91 * Returns: Number of strings filled in.
93 * Use: Fills an array with pointers to the individual words of a
94 * string. The string is modified in place to contain zero
95 * bytes at the word boundaries, and the words have leading
96 * and trailing space stripped off. No more than @c@ words
97 * are read; the actual number is returned as the value of the
98 * function. Unused slots in the array are populated with
99 * null bytes. If there's any string left, the address of the
100 * remainder is stored in @rest@ (if it's non-null); otherwise
101 * @rest@ is set to a null pointer.
104 size_t str_split(char *p
, char *v
[], size_t c
, char **rest
)
109 while (c
&& (q
= str_getword(&p
)) != 0) {
124 while (isspace((unsigned char)*p
))
135 /* --- @str_sanitize@ --- *
137 * Arguments: @char *d@ = destination buffer
138 * @const char *p@ = pointer to source string
139 * @size_t sz@ = size of destination buffer
143 * Use: Writes a string into a buffer, being careful not to overflow
144 * the buffer, to null terminate the result, and to prevent
145 * nasty nonprintable characters ending up in the buffer.
148 void str_sanitize(char *d
, const char *p
, size_t sz
)
155 if (!isgraph((unsigned char)ch
))
163 /*----- That's all, folks -------------------------------------------------*/