mon-entreprise/publicodes/source/grammarFunctions.js

71 lines
1.6 KiB
JavaScript

/* Those are postprocessor functions for the Nearley grammar.ne.
The advantage of putting them here is to get prettier's JS formatting, since Nealrey doesn't support it https://github.com/kach/nearley/issues/310 */
import { normalizeDateString } from './date'
import { parsePeriod } from './temporal'
export let binaryOperation = (operationType) => ([A, , operator, , B]) => ({
[operator]: {
operationType,
explanation: [A, B],
},
})
export let unaryOperation = (operationType) => ([operator, , A]) => ({
[operator]: {
operationType,
explanation: [number([{ value: '0' }]), A],
},
})
export let temporalNumericValue = (variable, word, date) => ({
temporalValue: {
explanation: variable,
period: parsePeriod(word.value.slice(2), date),
},
})
export let variable = ([firstFragment, nextFragment], _, reject) => {
const fragments = [firstFragment, ...nextFragment].map(({ value }) => value)
if (!nextFragment.length && ['oui', 'non'].includes(firstFragment)) {
return reject
}
return {
variable: fragments.join(' . '),
}
}
export let number = ([{ value }]) => ({
constant: {
type: 'number',
nodeValue: parseFloat(value),
},
})
export let numberWithUnit = (value) => ({
...number(value),
unité: value[2].value,
})
export let date = ([{ value }]) => {
return {
constant: {
type: 'date',
nodeValue: normalizeDateString(value),
},
}
}
export let boolean = (nodeValue) => () => ({
constant: {
type: 'boolean',
nodeValue,
},
})
export let string = ([{ value }]) => ({
constant: {
type: 'string',
nodeValue: value.slice(1, -1),
},
})