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+/* $Xorg: ParseCmd.c,v 1.4 2001/02/09 02:03:35 xorgcvs Exp $ */
+
+/***********************************************************
+
+Copyright 1987, 1988, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice 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 NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP 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.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+
+Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the name of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+******************************************************************/
+/* $XFree86: xc/lib/X11/ParseCmd.c,v 1.5 2001/12/14 19:54:03 dawes Exp $ */
+
+/* XrmParseCommand()
+
+ Parse command line and store argument values into resource database
+
+ Allows any un-ambiguous abbreviation for an option name, but requires
+ that the table be ordered with any options that are prefixes of
+ other options appearing before the longer version in the table.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+#include <X11/Xresource.h>
+#include <stdio.h>
+
+
+static void _XReportParseError(XrmOptionDescRec *arg, char *msg)
+{
+ (void) fprintf(stderr, "Error parsing argument \"%s\" (%s); %s\n",
+ arg->option, arg->specifier, msg);
+ exit(1);
+}
+
+void
+XrmParseCommand(
+ XrmDatabase *pdb, /* data base */
+ register XrmOptionDescList options, /* pointer to table of valid options */
+ int num_options, /* number of options */
+ _Xconst char *prefix, /* name to prefix resources with */
+ int *argc, /* address of argument count */
+ char **argv) /* argument list (command line) */
+{
+ int foundOption;
+ char **argsave;
+ register int i, myargc;
+ XrmBinding bindings[100];
+ XrmQuark quarks[100];
+ XrmBinding *start_bindings;
+ XrmQuark *start_quarks;
+ char *optP, *argP = NULL, optchar, argchar = 0;
+ int matches;
+ enum {DontCare, Check, NotSorted, Sorted} table_is_sorted;
+ char **argend;
+
+#define PutCommandResource(value_str) \
+ { \
+ XrmStringToBindingQuarkList( \
+ options[i].specifier, start_bindings, start_quarks); \
+ XrmQPutStringResource(pdb, bindings, quarks, value_str); \
+ } /* PutCommandResource */
+
+ myargc = (*argc);
+ argend = argv + myargc;
+ argsave = ++argv;
+
+ /* Initialize bindings/quark list with prefix (typically app name). */
+ quarks[0] = XrmStringToName(prefix);
+ bindings[0] = XrmBindTightly;
+ start_quarks = quarks+1;
+ start_bindings = bindings+1;
+
+ table_is_sorted = (myargc > 2) ? Check : DontCare;
+ for (--myargc; myargc > 0; --myargc, ++argv) {
+ foundOption = False;
+ matches = 0;
+ for (i=0; i < num_options; ++i) {
+ /* checking the sort order first insures we don't have to
+ re-do the check if the arg hits on the last entry in
+ the table. Useful because usually '=' is the last entry
+ and users frequently specify geometry early in the command */
+ if (table_is_sorted == Check && i > 0 &&
+ strcmp(options[i].option, options[i-1].option) < 0) {
+ table_is_sorted = NotSorted;
+ }
+ for (argP = *argv, optP = options[i].option;
+ (optchar = *optP++) &&
+ (argchar = *argP++) &&
+ argchar == optchar;);
+ if (!optchar) {
+ if (!*argP ||
+ options[i].argKind == XrmoptionStickyArg ||
+ options[i].argKind == XrmoptionIsArg) {
+ /* give preference to exact matches, StickyArg and IsArg */
+ matches = 1;
+ foundOption = i;
+ break;
+ }
+ }
+ else if (!argchar) {
+ /* may be an abbreviation for this option */
+ matches++;
+ foundOption = i;
+ }
+ else if (table_is_sorted == Sorted && optchar > argchar) {
+ break;
+ }
+ if (table_is_sorted == Check && i > 0 &&
+ strcmp(options[i].option, options[i-1].option) < 0) {
+ table_is_sorted = NotSorted;
+ }
+ }
+ if (table_is_sorted == Check && i >= (num_options-1))
+ table_is_sorted = Sorted;
+ if (matches == 1) {
+ i = foundOption;
+ switch (options[i].argKind){
+ case XrmoptionNoArg:
+ --(*argc);
+ PutCommandResource(options[i].value);
+ break;
+
+ case XrmoptionIsArg:
+ --(*argc);
+ PutCommandResource(*argv);
+ break;
+
+ case XrmoptionStickyArg:
+ --(*argc);
+ PutCommandResource(argP);
+ break;
+
+ case XrmoptionSepArg:
+ if (myargc > 1) {
+ ++argv; --myargc; --(*argc); --(*argc);
+ PutCommandResource(*argv);
+ } else
+ (*argsave++) = (*argv);
+ break;
+
+ case XrmoptionResArg:
+ if (myargc > 1) {
+ ++argv; --myargc; --(*argc); --(*argc);
+ XrmPutLineResource(pdb, *argv);
+ } else
+ (*argsave++) = (*argv);
+ break;
+
+ case XrmoptionSkipArg:
+ if (myargc > 1) {
+ --myargc;
+ (*argsave++) = (*argv++);
+ }
+ (*argsave++) = (*argv);
+ break;
+
+ case XrmoptionSkipLine:
+ for (; myargc > 0; myargc--)
+ (*argsave++) = (*argv++);
+ break;
+
+ case XrmoptionSkipNArgs:
+ {
+ register int j = 1 + (long) options[i].value;
+
+ if (j > myargc) j = myargc;
+ for (; j > 0; j--) {
+ (*argsave++) = (*argv++);
+ myargc--;
+ }
+ argv--; /* went one too far before */
+ myargc++;
+ }
+ break;
+
+ default:
+ _XReportParseError (&options[i], "unknown kind");
+ break;
+ }
+ }
+ else
+ (*argsave++) = (*argv); /*compress arglist*/
+ }
+
+ if (argsave < argend)
+ (*argsave)=NULL; /* put NULL terminator on compressed argv */
+}
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