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Use @ instead of ? to discover keys. #3

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Feb 26, 2016
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Use @ instead of ? to discover keys. #3

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6 changes: 3 additions & 3 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -65,19 +65,19 @@ We'll use the following JSON data for the examples:

Print an object's keys:

$ echo "$JSON" | jt ?
$ echo "$JSON" | jt @
foo
bar
baz

Print a nested object's keys:

$ echo "$JSON" | jt bar ?
$ echo "$JSON" | jt bar @
x

Print the keys of the first object in a nested array:

$ echo "$JSON" | jt baz ?
$ echo "$JSON" | jt baz @
y

Print the indexes in a nested array:
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8 changes: 4 additions & 4 deletions jt.1.ronn
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Expand Up @@ -100,7 +100,7 @@ The following commands are available:
Print the array index at the top of the index stack. It is an error if the
index stack is empty.

* `?`:
* `@`:
Print the keys of the object at the top of the data stack. It is an error
if the item at the top of the data stack is not an object.

Expand Down Expand Up @@ -167,19 +167,19 @@ We will use the following JSON input for the examples:

Explore JSON data, print an object's keys:

$ echo "$JSON" | jt ?
$ echo "$JSON" | jt @
foo
bar
baz

Print a nested object's keys:

$ echo "$JSON" | jt bar ?
$ echo "$JSON" | jt bar @
x

Print the keys of the first object in a nested array:

$ echo "$JSON" | jt baz ?
$ echo "$JSON" | jt baz @
y

Print the indexes in a nested array:
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4 changes: 2 additions & 2 deletions jt.c
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Expand Up @@ -381,7 +381,7 @@ int run(char *js, int argc, char *argv[]) {

if (argc <= 0) return 0;

if (! strcmp(argv[0], "?")) {
if (! strcmp(argv[0], "@")) {
if (data && data->type == JSMN_OBJECT)
obj_print_keys(js, data);
exit(0);
Expand Down Expand Up @@ -428,7 +428,7 @@ void usage(int status) {
fprintf(stderr, " jt -u <string>\n");
fprintf(stderr, " jt -c [-js] [-i <file>] [-o <file>] COMMAND ...\n");
fprintf(stderr, " jt [-js] [-i <file>] [-o <file>] [-F <char>] [-R <char>] COMMAND ...\n\n");
fprintf(stderr, "Where COMMAND is one of `[', `]', `%%', `?', `^', or a property name.\n");
fprintf(stderr, "Where COMMAND is one of `[', `]', `%%', `@', `^', or a property name.\n");
exit(status);
}

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