Unable to render negative numbers

[ahallora]

Describe the bug
When trying to render out a negative number Stencil breaks and returns nothing. It works with positive numbers and 0.

To Reproduce
Take this input { "test": -1 } and this stencil template {%= test %} and watch it break.

Expected behavior
I would expect stencil to output the negative number in the template.

Environment where template is rendered:

• Stencil version: 0.3.26
• Operating System version: Linux / GCP

[achempion]

I checked the error logs,

for the payload

{
  "test": -3
}

the error trace is

Exception in thread "main" java.lang.IllegalStateException: Unexpected character: '-'
	at io.github.erdos.stencil.standalone.JsonParser.simpleParse(JsonParser.java:64)
	at io.github.erdos.stencil.standalone.JsonParser.readMap(JsonParser.java:160)
	at io.github.erdos.stencil.standalone.JsonParser.simpleParse(JsonParser.java:47)
	at io.github.erdos.stencil.standalone.JsonParser.read(JsonParser.java:24)
	at io.github.erdos.stencil.standalone.JsonParser.parse(JsonParser.java:20)
	at io.github.erdos.stencil.standalone.Parser$DataFileFormat$1.parse(Parser.java:37)
	at io.github.erdos.stencil.standalone.StandaloneApplication.processJobs(StandaloneApplication.java:89)
	at io.github.erdos.stencil.standalone.StandaloneApplication.run(StandaloneApplication.java:70)
	at io.github.erdos.stencil.Main.main(Main.java:20)

[erdos]

🤦

[erdos]

Hello, thank you for opening the issue. The reason behind the bug is that the standalone stencil runner uses its own JSON parser implementation. (The bug is not present when stencil is used as the service or as a library.) Apparently, it is far from perfect.

I have released version v0.3.27 with the fix for the issue.

[achempion]

Awesome, thank you 💚