--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/srogue/options.c	Thu Nov 25 12:21:41 2010 +0000
@@ -0,0 +1,230 @@
+/*
+ * This file has all the code for the option command.
+ *
+ * @(#)options.c	9.0	(rdk)	 7/17/84
+ *
+ * Super-Rogue
+ * Copyright (C) 1984 Robert D. Kindelberger
+ * All rights reserved.
+ *
+ * Based on "Rogue: Exploring the Dungeons of Doom"
+ * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
+ * All rights reserved.
+ *
+ * See the file LICENSE.TXT for full copyright and licensing information.
+ */
+
+#include <termios.h>
+#include <ctype.h>
+#include "rogue.h"
+#include "rogue.ext"
+
+extern struct termios terminal;
+
+/*
+ * description of an option and what to do with it
+ */
+struct optstruct {
+	char	*o_name;	/* option name */
+	char	*o_prompt;	/* prompt for interactive entry */
+	char	*o_opt;		/* pointer to thing to set */
+};
+
+typedef struct optstruct	OPTION;
+
+int	put_str(), get_str();
+
+OPTION	optlist[] = {
+	{ "name",	"Name: ",		whoami },
+	{ "fruit",	"Fruit: ",		fruit },
+	{ "file", 	"Save file: ",	file_name }
+};
+#define	NUM_OPTS	(sizeof optlist / sizeof (OPTION))
+
+/*
+ * print and then set options from the terminal
+ */
+option()
+{
+	reg OPTION	*op;
+	reg int	wh;
+
+	wclear(hw);
+	touchwin(hw);
+	/*
+	 * Display current values of options
+	 */
+	for (op = optlist; op < &optlist[NUM_OPTS]; op++) {
+		wh = op - optlist;
+		mvwaddstr(hw, wh, 0, op->o_prompt);
+		mvwaddstr(hw, wh, 16, op->o_opt);
+	}
+	/*
+	 * Set values
+	 */
+	wmove(hw, 0, 0);
+	for (op = optlist; op < &optlist[NUM_OPTS]; op++) {
+		wmove(hw, op - optlist, 16);
+		if ((wh = get_str(op->o_opt, hw))) {
+			if (wh == QUIT)
+				break;
+			else if (op > optlist) {
+				wmove(hw, op - optlist, 0);
+				op -= 2;
+			}
+			else {
+				putchar(7);
+				wmove(hw, 0, 0);
+				op -= 1;
+			}
+		}
+	}
+	/*
+	 * Switch back to original screen
+	 */
+	dbotline(hw,spacemsg);
+	restscr(cw);
+	after = FALSE;
+}
+
+
+/*
+ * get_str:
+ *	Set a string option
+ */
+#define CTRLB	2
+get_str(opt, awin)
+char *opt;
+WINDOW *awin;
+{
+	reg char *sp;
+	reg int c, oy, ox;
+	char buf[LINLEN];
+
+	draw(awin);
+	getyx(awin, oy, ox);
+	/*
+	 * loop reading in the string, and put it in a temporary buffer
+	 */
+	for (sp = buf; (c=wgetch(awin)) != '\n' && c != '\r' && c != ESCAPE;
+	  wclrtoeol(awin), draw(awin)) {
+		if (( (int)sp - (int)buf ) >= 50) {
+			*sp = '\0';			/* line was too long */
+			strucpy(opt,buf,strlen(buf));
+			mvwaddstr(awin, 0, 0, "Name was truncated --More--");
+			wclrtoeol(awin);
+			draw(awin);
+			wait_for(awin, ' ');
+			mvwprintw(awin, 0, 0, "Called: %s",opt);
+			draw(awin);
+			return NORM;
+		}
+		if (c == -1)
+			continue;
+		else if(c == terminal.c_cc[VERASE])	{	/* process erase char */
+			if (sp > buf) {
+				reg int i;
+	
+				sp--;
+				for (i = strlen(unctrl(*sp)); i; i--)
+					waddch(awin, '\b');
+			}
+			continue;
+		}
+		else if (c == terminal.c_cc[VKILL]) {   /* process kill character */
+			sp = buf;
+			wmove(awin, oy, ox);
+			continue;
+		}
+		else if (sp == buf) {
+			if (c == CTRLB)			/* CTRL - B */
+				break;
+			if (c == '~') {
+				strcpy(buf, home);
+				waddstr(awin, home);
+				sp += strlen(home);
+				continue;
+			}
+		}
+		*sp++ = c;
+		waddstr(awin, unctrl(c));
+	}
+	*sp = '\0';
+	if (sp > buf)	/* only change option if something was typed */
+		strucpy(opt, buf, strlen(buf));
+	wmove(awin, oy, ox);
+	waddstr(awin, opt);
+	waddstr(awin, "\n\r");
+	draw(awin);
+	if (awin == cw)
+		mpos += sp - buf;
+	if (c == CTRLB)
+		return MINUS;
+	if (c == ESCAPE)
+		return QUIT;
+	return NORM;
+}
+
+/*
+ * parse_opts:
+ *	Parse options from string, usually taken from the environment.
+ *	the string is a series of comma seperated values, with strings
+ *	being "name=....", with the string being defined up to a comma
+ *	or the end of the entire option string.
+ */
+
+parse_opts(str)
+char *str;
+{
+	reg char *sp;
+	reg OPTION *op;
+	reg int len;
+
+	while (*str) {
+		for (sp = str; isalpha(*sp); sp++)	/* get option name */
+			continue;
+		len = sp - str;
+		for (op = optlist; op < &optlist[NUM_OPTS]; op++) {
+			if (EQSTR(str, op->o_name, len)) {
+				reg char *start;
+	
+				for (str = sp + 1; *str == '='; str++)
+					continue;
+				if (*str == '~') {
+					strcpy(op->o_opt, home);
+					start = op->o_opt + strlen(home);
+					while (*++str == '/')
+						continue;
+				}
+				else
+					start = (char *) op->o_opt;
+				for (sp = str + 1; *sp && *sp != ','; sp++)
+					continue;
+				strucpy(start, str, sp - str);
+			}
+		}
+		/*
+		 * skip to start of next option name
+		 */
+		while (*sp && !isalpha(*sp))
+			sp++;
+		str = sp;
+	}
+}
+
+/*
+ * copy string using unctrl for things
+ */
+strucpy(s1, s2, len)
+char *s1, *s2;
+int len;
+{
+	reg char *sp;
+
+	while (len-- > 0) {
+		strcpy(s1, (sp = unctrl(*s2)));
+		s1 += strlen(sp);
+		s2++;
+	}
+	*s1 = '\0';
+}