From f4092abdf94af6a99aff944d6264bc1284e8bdd4 Mon Sep 17 00:00:00 2001 From: Reinhard Tartler Date: Mon, 10 Oct 2011 17:43:39 +0200 Subject: Imported nx-X11-3.1.0-1.tar.gz Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository --- nx-X11/programs/Xserver/hw/dmx/input/dmxarg.c | 176 ++++++++++++++++++++++++++ 1 file changed, 176 insertions(+) create mode 100644 nx-X11/programs/Xserver/hw/dmx/input/dmxarg.c (limited to 'nx-X11/programs/Xserver/hw/dmx/input/dmxarg.c') diff --git a/nx-X11/programs/Xserver/hw/dmx/input/dmxarg.c b/nx-X11/programs/Xserver/hw/dmx/input/dmxarg.c new file mode 100644 index 000000000..8708fa009 --- /dev/null +++ b/nx-X11/programs/Xserver/hw/dmx/input/dmxarg.c @@ -0,0 +1,176 @@ +/* $XFree86$ */ +/* + * Copyright 2002-2003 Red Hat Inc., Durham, North Carolina. + * + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation on the rights to use, copy, modify, merge, + * publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, + * subject to the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* + * Authors: + * Rickard E. (Rik) Faith + * + */ + +/** \file + * Generic comma-delimited argument processing. */ + +#ifdef HAVE_DMX_CONFIG_H +#include +#endif + +#define DMX_ARG_TEST 0 + +#include "dmx.h" +#include "dmxarg.h" +#include +#include + +#if DMX_ARG_TEST +#include +#endif + +/** Stores the parsed argument list. */ +struct _dmxArg { + int argc; /**< Number of arguments in argv */ + int argm; /**< Maximum number of arguments store-able in argv */ + const char **argv; /**< Arguments */ +}; + +/** Create an (externally opaque) \a dmxArg object. */ +dmxArg dmxArgCreate(void) +{ + dmxArg a = malloc(sizeof(*a)); + a->argc = 0; + a->argm = 2; + a->argv = malloc(a->argm * sizeof(*a->argv)); + a->argv[0] = NULL; + return a; +} + +/** Free the specified \a dmxArg object. */ +void dmxArgFree(dmxArg a) +{ + int i; + + for (i = 0; i < a->argc; i++) free((char *)a->argv[i]); + free(a->argv); + free(a); +} + +/** Add the \a string as the next argument in the \a dmxArg object. */ +void dmxArgAdd(dmxArg a, const char *string) +{ + if (a->argm <= a->argc + 2) + a->argv = realloc(a->argv, sizeof(*a->argv) * (a->argm *= 2)); + a->argv[a->argc++] = strdup(string); + a->argv[a->argc] = NULL; +} + +/** Return the argument number \a item in the \a dmxArg object. + * Arguments are 0 based. NULL will be returned for values less than 0 + * or equal to or greater than the number of arguments in the object. */ +const char *dmxArgV(dmxArg a, int item) +{ + if (item < 0 || item >= a->argc) return NULL; + return a->argv[item]; +} + +/** Return the number of arguments in the \a dmxArg object. */ +int dmxArgC(dmxArg a) +{ + return a->argc; +} + +/** Parse a string into arguments delimited by commas. Return a new \a + * dmxArg object containing the arguments. */ +dmxArg dmxArgParse(const char *string) +{ + char *tmp; + char *start, *pt; + dmxArg a = dmxArgCreate(); + int done; + int len; + + if (!string) return a; + + len = strlen(string) + 2; + tmp = malloc(len); + strncpy(tmp, string, len); + + for (start = pt = tmp, done = 0; !done && *pt; start = ++pt) { + for (;*pt && *pt != ','; pt++); + if (!*pt) done = 1; + *pt = '\0'; + dmxArgAdd(a, start); + } + if (!done) dmxArgAdd(a, ""); /* Final comma */ + + free(tmp); + return a; +} + +#if DMX_ARG_TEST +static void dmxArgPrint(dmxArg a) +{ + int i; + + printf(" argc = %d\n", dmxArgC(a)); + for (i = 0; i < dmxArgC(a); i++) + printf(" argv[%d] = \"%s\"\n", i, dmxArgV(a, i)); +} + +static void dmxArgTest(const char *string) +{ + dmxArg a; + + if (!string) + printf("Testing NULL\n"); + else if (!strlen(string)) + printf("Testing (empty)\n"); + else + printf("Testing \"%s\"\n", string); + + a = dmxArgParse(string); + dmxArgPrint(a); + dmxArgFree(a); +} + +int main(void) +{ + dmxArgTest(NULL); + dmxArgTest(""); + dmxArgTest(","); + + dmxArgTest("a"); + dmxArgTest("a,"); + dmxArgTest(",a"); + + dmxArgTest("a,b"); + dmxArgTest("a,b,"); + dmxArgTest("a,b,,"); + dmxArgTest("a,b,,c"); + + return 0; +} +#endif -- cgit v1.2.3