fop(1): literal record separator

Makefile

@@ -17,6 +17,8 @@
 DESTDIR ?= dist
 PREFIX ?= /usr/local
 
+MANDIR != [ $(PREFIX) = / ] && printf '/usr/share/man\n' \
+	|| printf '/share/man\n'
 SYSEXITS != printf '\043include <sysexits.h>\n' | cpp -M - | sed 's/ /\n/g' \
 	| sed -n 's/sysexits\.h//p' || printf 'include\n'
 
@@ -42,7 +44,7 @@ clean:
 dist: all
 	mkdir -p $(DESTDIR)/$(PREFIX)/bin $(DESTDIR)/$(PREFIX)/share/man/man1
 	cp build/bin/* $(DESTDIR)/$(PREFIX)/bin
-	cp docs/*.1 $(DESTDIR)/$(PREFIX)/share/man/man1
+	cp docs/*.1 $(DESTDIR)/$(PREFIX)/$(MANDIR)/man1
 
 .PHONY: install
 install: dist
@@ -102,7 +104,6 @@ mm: build/bin/mm
 build/bin/mm: src/mm.c build
 	$(CC) $(CFLAGS) -o $@ src/mm.c
 
-
 .PHONY: npc
 npc: build/bin/npc
 build/bin/npc: src/npc.c build

src/fop.rs

@@ -32,18 +32,12 @@ use sysexits::{ EX_DATAERR, EX_IOERR, EX_UNAVAILABLE, EX_USAGE };
 
 fn main() {
 	let argv = args().collect::<Vec<String>>();
-	let mut d = '␞';
+	let mut d = 0x1E.to_string();
 	let mut arg_parser = Parser::new(&argv, "d:");
 
 	while let Some(opt) = arg_parser.next() {
 		match opt {
-			Ok(Opt('d', Some(arg))) => {
-				let arg_char = arg.chars().collect::<Vec<char>>();
-				if arg_char.len() > 1 {
-					eprintln!("{}: {}: Not a character.", argv[0], arg);
-					exit(EX_USAGE);
-				} else { d = arg_char[0]; }
-			},
+			Ok(Opt('d', Some(arg))) => d = arg,
 			_ => {},
 		};
 	}
@@ -63,7 +57,7 @@ fn main() {
 
 	let mut buf = String::new();
 	let _ = stdin().read_to_string(&mut buf);
-	let mut fields = buf.split(d).collect::<Vec<&str>>();
+	let mut fields = buf.split(&d).collect::<Vec<&str>>();
 
 	let opts = argv
 		.iter()