Only suggest parameter types when text is surrounded by whitespace

[aslakhellesoy]

Imagine the following parameter type is defined:

ParameterType(
  name: 'direction',
  regexp: /(up|down)/,
  transformer: ->(s) { s }
)

This could be used with the following step definition:

When("the sun goes {direction}") do |direction|
end

However, if we add two new undefined Gherkin steps:

Given the sun has gone down
When Aslak downloads a picture

That should suggest:

Given("the sun has gone {direction}") do |direction|
end

But it should not suggest:

When("Aslak {direction}loads a picture") do |direction|
end

Instead, it should simply suggest:

When("Aslak downloads a picture") do |direction|
end

Parameters should only be suggested when the text is surrounded by whitespace, or when it's at the beginning or end of the step. That's what users would expect.

[sebrose]

Perhaps an unintended consequence, but now numerical parameters with units are not recognised by the snippet generator:
Given Sean is 15m from Lucy -> "Sean is 15m from Lucy", but should be "Sean is {int}m from Lucy"

[vincent-psarga]

Maybe it could be interesting to have some built-in "units" type (\d+(d|h|m|s, \d+(m|km), \d+(ft|'|") (I don't know what the classical short version for other imperial units is)) but I think it would be pretty hard to have something easily translatable/portable for multiple languages.