X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=sst.c;h=ae209e2cb373ed7cf7ad8a156e1fbf01b55bc092;hb=e9397676148f7e501e7a181d354020f86602a566;hp=2ef4261a62f2183f1c05532379de791cd272fc8a;hpb=2a0411c349010501abd2f907b8965a8ca9b4e80c;p=super-star-trek.git

diff --git a/sst.c b/sst.c
index 2ef4261..ae209e2 100644
--- a/sst.c
+++ b/sst.c
@@ -6,11 +6,16 @@
 #include <dos.h>
 #endif
 #include <time.h>
+
+#ifndef SSTDOC
+#define SSTDOC	"sst.doc"
+#endif
 	
 int getch(void);
 
 static char line[128], *linep = line;
 static int linecount;	/* for paging */
+static int screenheight = 24;
 
 static void clearscreen(void);
 
@@ -103,7 +108,7 @@ static void listCommands(int x) {
 
 static void helpme(void) {
 	int i, j;
-	char cmdbuf[32];
+	char cmdbuf[32], *cp;
 	char linebuf[132];
 	FILE *fp;
 	/* Give help on commands */
@@ -130,37 +135,42 @@ static void helpme(void) {
 		strcpy(cmdbuf, " ABBREV");
 	}
 	else {
-		strcpy(cmdbuf, "  Mnemonic:  ");
-		j = 0;
-		while ((cmdbuf[j+13] = toupper(commands[i][j])) != 0) j++;
+	    for (j = 0; commands[i][j]; j++)
+		cmdbuf[j] = toupper(commands[i][j]);
+	    cmdbuf[j] = '\0';
 	}
-	fp = fopen("sst.doc", "r");
+	fp = fopen(SSTDOC, "r");
 	if (fp == NULL) {
 		prout("Spock-  \"Captain, that information is missing from the");
 		prout("   computer. You need to find SST.DOC and put it in the");
 		prout("   current directory.\"");
 		return;
 	}
-	i = strlen(cmdbuf);
-	do {
-		if (fgets(linebuf, 132, fp) == NULL) {
+	for (;;) {
+	    if (fgets(linebuf, sizeof(linebuf), fp) == NULL) {
 			prout("Spock- \"Captain, there is no information on that command.\"");
 			fclose(fp);
 			return;
 		}
-	} while (strncmp(linebuf, cmdbuf, i) != 0);
+	    if (linebuf[0] == '%' && linebuf[1] == '%'&& linebuf[2] == ' ') {
+		for (cp = linebuf+3; isspace(*cp); cp++)
+			continue;
+		linebuf[strlen(linebuf)-1] = '\0';
+		if (strcmp(cp, cmdbuf) == 0)
+		    break;
+	    }
+	}
 
 	skip(1);
 	prout("Spock- \"Captain, I've found the following information:\"");
 	skip(1);
 
-	do {
-		if (linebuf[0]!=12) { // ignore page break lines 
-			linebuf[strlen(linebuf)-1] = '\0'; // No \n at end
-			prout(linebuf);
-		}
-		fgets(linebuf,132,fp);
-	} while (strstr(linebuf, "******")==NULL);
+	while (fgets(linebuf, sizeof(linebuf),fp)) {
+		if (strstr(linebuf, "******"))
+			break;
+		/* use fputs here to avoid % expansion */
+		fputs(linebuf, stdout);
+	}
 	fclose(fp);
 }
 
@@ -350,6 +360,10 @@ int main(int argc, char **argv) {
 	int hitme;
 	char ch;
 	prelim();
+	char *LINES = getenv("LINES");
+ 
+	if (LINES)
+	    screenheight = atoi(LINES);
 
 	if (argc > 1) {
 		fromcommandline = 1;
@@ -572,7 +586,7 @@ void pause(int i) {
 void skip(int i) {
 	while (i-- > 0) {
 		linecount++;
-		if (linecount >= 23)
+		if (linecount >= screenheight)
 			pause(0);
 		else
 			putchar('\n');