Added oldstyle option.

NEWS

@@ -2,3 +2,6 @@
 
 Repository head::
   Forward port of Crowther & Woods's 430-point Adventure 2.5.
+  Added -l option for logging.
+  Added command prompt; -o suppresses this.
+

advent.txt

@@ -28,6 +28,8 @@ on which it originally ran limited filenames to 6 characters.
 
 -l:: Log commands to specified file.
 
+-o:: Old-style.  Restores original interface, no prompt.
+
 == ENVIRONMENT VARIABLES ==
 ADVENTURE::
    Path to the text database file describing Colossal Cave.

init.c

@@ -173,7 +173,8 @@ static int finish_init(void);
 static void quick_io(void);
 
 void initialise(void) {
-	printf("Initialising...\n");
+	if (oldstyle)
+		printf("Initialising...\n");
 	if(!quick_init()){raw_init(); report(); quick_save();}
 	finish_init();
 }

main.c

@@ -41,6 +41,7 @@ long ABBNUM, ACTSPK[36], AMBER, ATTACK, AXE, BACK, BATTER, BEAR, BIRD, BLOOD, BO
 		VOLCAN, VRBSIZ = 35, VRSION = 25, WATER, WD1, WD1X, WD2, WD2X,
 		WZDARK = false, ZZWORD;
 FILE  *logfp;
+bool oldstyle = false;
 
 extern void initialise();
 extern void score(long);
@@ -63,7 +64,7 @@ int main(int argc, char *argv[]) {
 
 /*  Options. */
 
-	while ((ch = getopt(argc, argv, "l:")) != EOF) {
+	while ((ch = getopt(argc, argv, "l:o")) != EOF) {
 		switch (ch) {
 		case 'l':
 			logfp = fopen(optarg, "w+");
@@ -72,6 +73,9 @@ int main(int argc, char *argv[]) {
 					"advent: can't open logfile %s for write\n",
 					optarg);
 			break;
+		case 'o':
+		    oldstyle = true;
+		    break;
 		}
 	}
 

main.h

@@ -1,3 +1,5 @@
+#include <stdbool.h>
+
 #define LINESIZE	100
 
 extern long ABB[], ATAB[], ATLOC[], BLKLIN, DFLAG, DLOC[], FIXED[], HOLDNG,
@@ -5,3 +7,4 @@ extern long ABB[], ATAB[], ATLOC[], BLKLIN, DFLAG, DLOC[], FIXED[], HOLDNG,
 		PARMS[], PLACE[], PTEXT[], RTEXT[], TABSIZ;
 extern signed char INLINE[LINESIZE+1], MAP1[], MAP2[];
 extern FILE *logfp;
+extern bool oldstyle;

misc.c

@@ -1,3 +1,4 @@
+#include <unistd.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include "main.h"
@@ -884,6 +885,8 @@ long I, VAL;
 
 	if(MAP2[1] == 0)MPINIT();
 
+	if (!oldstyle && isatty(0))
+	    fputs("> ", stdout);
 	IGNORE(fgets(INLINE+1,sizeof(INLINE)-1,OPENED));
 	if (feof(OPENED)) {
 		if (logfp)