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113 lines
3.6 KiB
113 lines
3.6 KiB
exports.printVersion = () => {
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const pjson = require('./package.json')
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console.log(`Staples ${pjson.version}`)
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}
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exports.compile = (template, input) => {
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let index = 0
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const getValue = (tagContent) => {
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let tagContentSplit = tagContent.split('.')
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let varLevel = null
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tagContentSplit.forEach( (level) => {
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const isIndex = Number.isInteger(parseInt(level))
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if(!varLevel) varLevel = input
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varLevel = isIndex ? varLevel[parseInt(level)] : varLevel[level]
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})
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return typeof varLevel === 'string' ? varLevel.trim() : varLevel
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}
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// Find all tags ####################################################
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let tags = []
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while(index < template.length) {
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let nextOpen = template.indexOf('{{', index)
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let tagType = null
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if(template.substring(nextOpen,nextOpen+3) == '{{{') { tagType = 'HTML'
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} else if(template.substring(nextOpen,nextOpen+5) == '{{#if') { tagType = 'IF'
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} else if(template.substring(nextOpen,nextOpen+9) == '{{#unless') { tagType = 'UNLESS'
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} else { tagType = 'DEFAULT' }
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if(nextOpen == -1) {
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index = template.length
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} else {
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index = nextOpen
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let nextClose = index
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switch(tagType) {
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case 'DEFAULT':
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nextClose = template.indexOf('}}', index)
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index = nextClose+2
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break
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case 'HTML':
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nextClose = template.indexOf('}}}', index)
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index = nextClose+3
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break
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case 'IF':
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nextClose = template.indexOf('{{/if}}', index)
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index = nextClose+7
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break
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case 'UNLESS':
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nextClose = template.indexOf('{{/unless}}', index)
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index = nextClose+11
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break
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}
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if(nextClose == index || nextClose == -1) {
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index = template.length
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} else {
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tags.push({
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tag: template.substring(nextOpen, index),
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type: tagType
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})
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}
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}
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}
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// Replace tags ####################################################
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let contentStart = 0
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let contentEnd = 0
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let content = 0
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let value = 0
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tags.forEach( (tag, i) => {
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switch(tag.type) {
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case 'DEFAULT':
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const split = tag.tag.split(' ')
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if(split.length == 1) {
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template = template.replace(tag.tag, getValue(tag.tag.substring(2, tag.tag.length-2)))
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} else {
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const funct = split[0].substring(2)
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const val1 = split.length == 2 ? split[1].substring(0,split[1].length-2) : split[1]
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const val2 = split.length == 3 ? split[2].substring(0,split[2].length-2) : null
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template = val2 ? template.replace(tag.tag, this.helpers.helpers[funct](getValue(val1), val2)) :
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template.replace(tag.tag, this.helpers.helpers[funct](getValue(val1)))
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}
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break
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case 'HTML':
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template = template.replace(tag.tag, getValue(tag.tag.substring(3, tag.tag.length-3)))
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break
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case 'IF':
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contentStart = tag.tag.indexOf('}}')+2
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contentEnd = tag.tag.indexOf('{{/if}}',contentStart)
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content = tag.tag.substring(contentStart, contentEnd)
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value = tag.tag.substring(6, contentStart-2)
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template = template.replace(tag.tag, getValue(value) ? content : '')
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break
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case 'UNLESS':
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contentStart = tag.tag.indexOf('}}')+2
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contentEnd = tag.tag.indexOf('{{/unless}}',contentStart)
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content = tag.tag.substring(contentStart, contentEnd)
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value = tag.tag.substring(10, contentStart-2)
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template = template.replace(tag.tag, getValue(value) ? '' : content)
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break
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}
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})
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return template
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}
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exports.helpers = require('./helpers.js')
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