jf

jf "jf: %q" "JSON Format"

jf is a jo alternative to help safely format and print JSON objects in the commandline.

However, unlike jo, where you build the JSON object by nesting jo outputs, jf works similar to printf, i.e. it expects the template in YAML format as the first argument, and then the values for the placeholders as subsequent arguments.

Usage

bash jf TEMPLATE [VALUE]...

Where TEMPLATE may contain the following placeholders:

• %q: Placeholder for quoted and safely escaped JSON string.
• %s: Placeholder for JSON values other than string.
• %%: Placeholder for a single % (i.e. escaped %).

And [VALUE]... are the values for the placeholders.

Use %% to escape a literal % character.

Example:

```bash jf "hello: %q" "world"

jo hello=world

{"hello":"world"}

jf "hello: {beautiful: %q}" "world"

jo hello=$(jo beautiful=world)

{"hello":{"beautiful":"world"}}

jf "d: {m: %s, n: %s}" 10 20

jo d[m]=10 d[n]=20

{"d":{"m":10,"n":20}}

jf "{a: {b: %s, c: {d: %s, f: %s}, d: {e: [%s, %q]}}, b: {e: [%q]}}" 0 1 true 2 sam hi

jo -d\|firstcharonly a\|b=0 a\|c\|d=1 a\|d\|e[]=2 a\|d\|e[]=sam a\|c[f]@1 b\|e[]g=hi

{"a":{"b":0,"c":{"d":1,"f":true},"d":{"e":[2,"sam"]}},"b":{"e":["hi"]}}

```