1 files changed, 87 insertions, 0 deletions
diff --git a/appl/cmd/strings.b b/appl/cmd/strings.b
new file mode 100644
index 00000000..9f806fa5
--- /dev/null
+++ b/appl/cmd/strings.b
@@ -0,0 +1,87 @@
+#
+#	initially generated by c2l
+#
+
+implement Strings;
+
+include "draw.m";
+
+Strings: module
+{
+	init: fn(nil: ref Draw->Context, argl: list of string);
+};
+
+include "sys.m";
+	sys: Sys;
+include "bufio.m";
+	bufio: Bufio;
+	Iobuf: import bufio;
+
+MINSPAN: con 6;
+BUFSIZE: con 70;
+
+init(nil: ref Draw->Context, argl: list of string)
+{
+	sys = load Sys Sys->PATH;
+	bufio = load Bufio Bufio->PATH;
+	argc := len argl;
+	if(argc < 2){
+		stringit("");
+		exit;
+	}
+	argl = tl argl;
+	for(i := 1; i < argc; i++){
+		if(argc > 2)
+			sys->print("%s:\n", hd argl);
+		stringit(hd argl);
+		argl = tl argl;
+	}
+}
+
+stringit(str: string)
+{
+	cnt := 0;
+	c: int;
+	buf := string array[BUFSIZE] of { * => byte 'z' };
+
+	if(str == nil)
+		fin := bufio->fopen(sys->fildes(0), Bufio->OREAD);
+	else
+		fin = bufio->open(str, Bufio->OREAD);
+	if(fin == nil){
+		sys->fprint(sys->fildes(2), "cannot open %s\n", str);
+		return;
+	}
+	start := big -1;
+	posn := fin.offset();
+	while((c = fin.getc()) >= 0){
+		if(isprint(c)){
+			if(start == big -1)
+				start = posn;
+			buf[cnt++] = c;
+			if(cnt == BUFSIZE){
+				sys->print("%8bd: %s ...\n", start, buf[0: cnt]);
+				start = big -1;
+				cnt = 0;
+			}
+		}
+		else{
+			if(cnt >= MINSPAN)
+				sys->print("%8bd: %s\n", start, buf[0: cnt]);
+			start = big -1;
+			cnt = 0;
+		}
+		posn = fin.offset();
+	}
+	if(cnt >= MINSPAN)
+		sys->print("%8bd: %s\n", start, buf[0: cnt]);
+	fin = nil;
+}
+
+isprint(r: int): int
+{
+	if(r >= ' ' && r < 16r7f || r > 16ra0)
+		return 1;
+	else
+		return 0;
+}