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Usage message for -h should go to stdout

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Nicolas Williams committed 2015-01-30 10:27:46 -06:00
1 parent 2e92c3e568
commit 42ff8a6959
1 file changed
+24 -21
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main.c
+24 -21
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@@ -22,27 +22,30 @@ static const char* progname;
* strategy, one that lets stack options.
*/
static void usage(int code) {
fprintf(stderr, "\njq - commandline JSON processor [version %s]\n", JQ_VERSION);
fprintf(stderr, "Usage: %s [options] <jq filter> [file...]\n\n", progname);
fprintf(stderr, "\tjq is a tool for processing JSON inputs, applying the\n");
fprintf(stderr, "\tgiven filter to its JSON text inputs and producing the\n");
fprintf(stderr, "\tfilter's results as JSON on standard output.\n");
fprintf(stderr, "\tThe simplest filter is ., which is the identity filter,\n");
fprintf(stderr, "\tcopying jq's input to its output.\n");
fprintf(stderr, "\tFor more advanced filters see the jq(1) manpage (\"man jq\")\n");
fprintf(stderr, "\tand/or http://stedolan.github.com/jq\n\n");
fprintf(stderr, "\tSome of the options include:\n");
fprintf(stderr, "\t -h\t\tthis message;\n");
fprintf(stderr, "\t -c\t\tcompact instead of pretty-printed output;\n");
fprintf(stderr, "\t -n\t\tuse `null` as the single input value;\n");
fprintf(stderr, "\t -i\t\tedit the [first] file in-place;\n");
fprintf(stderr, "\t -s\t\tread (slurp) all inputs into an array; apply filter to it;\n");
fprintf(stderr, "\t -r\t\toutput raw strings, not JSON texts;\n");
fprintf(stderr, "\t -R\t\tread raw strings, not JSON texts;\n");
fprintf(stderr, "\t --arg a v\tset variable $a to value <v>;\n");
fprintf(stderr, "\t --argjson a v\tset variable $a to JSON value <v>;\n");
fprintf(stderr, "\t --argfile a f\tset variable $a to JSON texts read from <f>;\n");
fprintf(stderr, "\tSee the manpage for more options.\n");
FILE *f = stderr;
if (code == 0)
f = stdout;
fprintf(f, "\njq - commandline JSON processor [version %s]\n", JQ_VERSION);
fprintf(f, "Usage: %s [options] <jq filter> [file...]\n\n", progname);
fprintf(f, "\tjq is a tool for processing JSON inputs, applying the\n");
fprintf(f, "\tgiven filter to its JSON text inputs and producing the\n");
fprintf(f, "\tfilter's results as JSON on standard output.\n");
fprintf(f, "\tThe simplest filter is ., which is the identity filter,\n");
fprintf(f, "\tcopying jq's input to its output.\n");
fprintf(f, "\tFor more advanced filters see the jq(1) manpage (\"man jq\")\n");
fprintf(f, "\tand/or http://stedolan.github.com/jq\n\n");
fprintf(f, "\tSome of the options include:\n");
fprintf(f, "\t -h\t\tthis message;\n");
fprintf(f, "\t -c\t\tcompact instead of pretty-printed output;\n");
fprintf(f, "\t -n\t\tuse `null` as the single input value;\n");
fprintf(f, "\t -i\t\tedit the [first] file in-place;\n");
fprintf(f, "\t -s\t\tread (slurp) all inputs into an array; apply filter to it;\n");
fprintf(f, "\t -r\t\toutput raw strings, not JSON texts;\n");
fprintf(f, "\t -R\t\tread raw strings, not JSON texts;\n");
fprintf(f, "\t --arg a v\tset variable $a to value <v>;\n");
fprintf(f, "\t --argjson a v\tset variable $a to JSON value <v>;\n");
fprintf(f, "\t --argfile a f\tset variable $a to JSON texts read from <f>;\n");
fprintf(f, "\tSee the manpage for more options.\n");
exit(code);
}