dev-notes.md

development notes

Unfortunately, DefiantJS won't work with Node.js at this time.

• It appears in npm, but require() can't load it.
• Instead of using npm, installing it in the project directory allows it to be loaded with require(), but it complains that navigator is undefined.
• Defining navigator (it's only used to get userAgent) gets past that error, but a new error, that Defiant is not defined, appears.

JSPath installs with npm and the simple tests work. However, it doesn't use standard XPath or JSONPath (http://goessner.net/articles/JsonPath/).

I'd tried using the DefiantJS tester (http://defiantjs.com/) with some JSON similar to my mapping:

[
   {
      "label": "bc",
      "letters": [
         "b",
         "c"
      ]
   },
   {
      "label": "abc",
      "letters": [
         "a",
         "b",
         "c"
      ]
   },
   {
      "label": "abcx",
      "letters": [
         "a",
         "b",
         "c"
      ]
   },
   {
      "label": "ac",
      "letters": [
         "a",
         "c"
      ]
   }
]

This XPath finds all objects that contain one of "a" or "b", but not both:

//*[(letters="b" and not(letters="a")) or (not(letters="b") and letters="a")]

I'd like to use a JSPath equivalent to find all terms that don't list two specs in the same definition. So far, I've tried:

'.{(.mapping.specification == "' + specFrom + '") && (.mapping.specification == "' + specTo + '")}.term'

But it gives all terms that contain the two specs in any definition.

I run my program with:

./ahanca.js caliper-1p0 caliper-1p1