Playing with DSL here (going through chapter 19 of « Groovy In Action, second
edition », well worth the read). It seems that one cannot use the word ‘is’ to
build a command chain dsl, but ‘IS’ or ‘Is’ or ‘iS’ are ok… Or is it something
I’m doing wrong ?
```
[marcpa@MarcPaquette dsl]$ groovy --version
Groovy Version: 2.4.3 JVM: 1.8.0_60 Vendor: Oracle Corporation OS: Mac OS X
[marcpa@MarcPaquette dsl]$ cat chainWithLowerCaseIsFails.groovy
def check(condition) {
[is: { bool ->
println "checking if $condition yields $bool, with 'is'"
},
IS: { bool ->
println "checking if $condition yields $bool, with 'IS'"
}]
}
cond = (1<2)
check cond is true
check cond IS true
[marcpa@MarcPaquette dsl]$ groovy chainWithLowerCaseIsFails.groovy
checking if true yields true, with 'IS'
[marcpa@MarcPaquette dsl]$
```
Marc Paquette
