1*3034Sdougm /* 2*3034Sdougm * CDDL HEADER START 3*3034Sdougm * 4*3034Sdougm * The contents of this file are subject to the terms of the 5*3034Sdougm * Common Development and Distribution License (the "License"). 6*3034Sdougm * You may not use this file except in compliance with the License. 7*3034Sdougm * 8*3034Sdougm * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*3034Sdougm * or http://www.opensolaris.org/os/licensing. 10*3034Sdougm * See the License for the specific language governing permissions 11*3034Sdougm * and limitations under the License. 12*3034Sdougm * 13*3034Sdougm * When distributing Covered Code, include this CDDL HEADER in each 14*3034Sdougm * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*3034Sdougm * If applicable, add the following below this CDDL HEADER, with the 16*3034Sdougm * fields enclosed by brackets "[]" replaced with your own identifying 17*3034Sdougm * information: Portions Copyright [yyyy] [name of copyright owner] 18*3034Sdougm * 19*3034Sdougm * CDDL HEADER END 20*3034Sdougm */ 21*3034Sdougm 22*3034Sdougm /* 23*3034Sdougm * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24*3034Sdougm * Use is subject to license terms. 25*3034Sdougm */ 26*3034Sdougm 27*3034Sdougm #pragma ident "%Z%%M% %I% %E% SMI" 28*3034Sdougm 29*3034Sdougm #include <stdio.h> 30*3034Sdougm #include <ctype.h> 31*3034Sdougm 32*3034Sdougm #define TK_INIT 0 33*3034Sdougm #define TK_TOKEN 1 34*3034Sdougm #define TK_SKIPWHITE 2 35*3034Sdougm #define TK_QUOTED 3 36*3034Sdougm 37*3034Sdougm /* 38*3034Sdougm * assumes quoted strings are delimited by white space (i.e sp 39*3034Sdougm * "string" sp). Backslash can be used to quote a quote mark. 40*3034Sdougm * quoted strings will have the quotes stripped. 41*3034Sdougm */ 42*3034Sdougm 43*3034Sdougm char * 44*3034Sdougm get_token(char *string) 45*3034Sdougm { 46*3034Sdougm static char *orig = NULL; 47*3034Sdougm static char *curp; 48*3034Sdougm char *ret; 49*3034Sdougm int state = TK_INIT; 50*3034Sdougm int c; 51*3034Sdougm int quotechar; 52*3034Sdougm 53*3034Sdougm if (string != orig || string == NULL) { 54*3034Sdougm orig = string; 55*3034Sdougm curp = string; 56*3034Sdougm if (string == NULL) { 57*3034Sdougm return (NULL); 58*3034Sdougm } 59*3034Sdougm } 60*3034Sdougm ret = curp; 61*3034Sdougm while ((c = *curp) != '\0') { 62*3034Sdougm switch (state) { 63*3034Sdougm case TK_SKIPWHITE: 64*3034Sdougm case TK_INIT: 65*3034Sdougm if (isspace(c)) { 66*3034Sdougm while (*curp && isspace(*curp)) 67*3034Sdougm curp++; 68*3034Sdougm ret = curp; 69*3034Sdougm } 70*3034Sdougm if (c == '"' || c == '\'') { 71*3034Sdougm state = TK_QUOTED; 72*3034Sdougm curp++; 73*3034Sdougm ret = curp; 74*3034Sdougm quotechar = c; /* want to match for close */ 75*3034Sdougm } else { 76*3034Sdougm state = TK_TOKEN; 77*3034Sdougm } 78*3034Sdougm break; 79*3034Sdougm case TK_TOKEN: 80*3034Sdougm switch (c) { 81*3034Sdougm case '\\': 82*3034Sdougm curp++; 83*3034Sdougm if (*curp) { 84*3034Sdougm curp++; 85*3034Sdougm break; 86*3034Sdougm } else { 87*3034Sdougm return (ret); 88*3034Sdougm } 89*3034Sdougm break; 90*3034Sdougm default: 91*3034Sdougm if (*curp == '\0' || isspace(c)) { 92*3034Sdougm *curp++ = '\0'; 93*3034Sdougm return (ret); 94*3034Sdougm } 95*3034Sdougm curp++; 96*3034Sdougm break; 97*3034Sdougm } 98*3034Sdougm break; 99*3034Sdougm case TK_QUOTED: 100*3034Sdougm switch (c) { 101*3034Sdougm case '\\': 102*3034Sdougm curp++; 103*3034Sdougm if (*curp) { 104*3034Sdougm curp++; 105*3034Sdougm break; 106*3034Sdougm } 107*3034Sdougm curp++; 108*3034Sdougm break; 109*3034Sdougm default: 110*3034Sdougm if (c == '\0' || c == quotechar) { 111*3034Sdougm *curp++ = '\0'; 112*3034Sdougm return (ret); 113*3034Sdougm } 114*3034Sdougm curp++; 115*3034Sdougm break; 116*3034Sdougm } 117*3034Sdougm break; 118*3034Sdougm } 119*3034Sdougm } 120*3034Sdougm return (NULL); 121*3034Sdougm } 122