88 lines
2.4 KiB
JavaScript
88 lines
2.4 KiB
JavaScript
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const { getHelperList } = require("../helpers")
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function getLayers(fullBlock) {
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let layers = []
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while (fullBlock.length) {
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const start = fullBlock.lastIndexOf("("),
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end = fullBlock.indexOf(")")
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let layer
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if (start === -1 || end === -1) {
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layer = fullBlock.trim()
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fullBlock = ""
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} else {
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const untrimmed = fullBlock.substring(start, end + 1)
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layer = untrimmed.substring(1, untrimmed.length - 1).trim()
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fullBlock =
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fullBlock.slice(0, start) +
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fullBlock.slice(start + untrimmed.length + 1, fullBlock.length)
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}
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layers.push(layer)
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}
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return layers
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}
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function getVariable(variableName) {
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return isNaN(parseFloat(variableName)) ? `$("${variableName}")` : variableName
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}
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function buildList(parts, value) {
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function build() {
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return parts
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.map(part => (part.startsWith("helper") ? part : getVariable(part)))
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.join(", ")
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}
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if (!value) {
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return parts.length > 1 ? `...[${build()}]` : build()
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} else {
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return parts.length === 0 ? value : `...[${value}, ${build()}]`
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}
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}
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function splitBySpace(layer) {
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const parts = []
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let started = null,
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last = 0
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for (let index = 0; index < layer.length; index++) {
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const char = layer[index]
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if (char === "[" && started == null) {
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started = index
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} else if (char === "]" && started != null && layer[index + 1] !== ".") {
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parts.push(layer.substring(started, index + 1).trim())
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started = null
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last = index
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} else if (started == null && char === " ") {
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parts.push(layer.substring(last, index).trim())
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last = index
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}
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}
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if (!layer.startsWith("[")) {
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parts.push(layer.substring(last, layer.length).trim())
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}
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return parts
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}
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module.exports.convertHBSBlock = (block, blockNumber) => {
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const braceLength = block[2] === "{" ? 3 : 2
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block = block.substring(braceLength, block.length - braceLength).trim()
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const layers = getLayers(block)
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let value = null
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const list = getHelperList()
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for (let layer of layers) {
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const parts = splitBySpace(layer)
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if (value || parts.length > 1) {
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// first of layer should always be the helper
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const helper = parts.splice(0, 1)
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if (list[helper]) {
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value = `helpers.${helper}(${buildList(parts, value)})`
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}
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}
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// no helpers
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else {
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value = getVariable(parts[0])
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}
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}
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// split by space will remove square brackets
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return { variable: `var${blockNumber}`, value }
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}
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