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-rw-r--r--README.md10
-rw-r--r--sent.c13
2 files changed, 12 insertions, 11 deletions
diff --git a/README.md b/README.md
index 70f60f9..3583d33 100644
--- a/README.md
+++ b/README.md
@@ -25,12 +25,12 @@ You can navigate with the arrow keys and quit with `q`.
Usage
- sent FILE
+ sent [FILE]
-If FILE equals `-`, stdin will be read. Produce image slides by prepending a
-`@` in front of the filename as a single paragraph. Lines starting with `#` will
-be ignored. A `\` at the beginning of the line escapes `@` and `#`. A
-presentation file could look like this:
+If FILE is omitted or equals `-`, stdin will be read. Produce image slides by
+prepending a `@` in front of the filename as a single paragraph. Lines starting
+with `#` will be ignored. A `\` at the beginning of the line escapes `@` and
+`#`. A presentation file could look like this:
sent
diff --git a/sent.c b/sent.c
index 6f5c139..9ad3636 100644
--- a/sent.c
+++ b/sent.c
@@ -689,7 +689,7 @@ void
usage()
{
die("sent " VERSION " (c) 2014-2015 markus.teich@stusta.mhn.de\n" \
- "usage: sent FILE", argv0);
+ "usage: sent [FILE]", argv0);
}
int
@@ -703,12 +703,13 @@ main(int argc, char *argv[])
usage();
} ARGEND;
- if ((fp = strcmp(argv[0], "-") ? fopen(argv[0], "r") : stdin)) {
- load(fp);
- fclose(fp);
- } else {
+ if (!argv[0] || !strcmp(argv[0], "-"))
+ fp = stdin;
+ else if (!(fp = fopen(argv[0], "r")))
die("Unable to open '%s' for reading:", argv[0]);
- }
+
+ load(fp);
+ fclose(fp);
if (!slidecount)
usage();