928 function validateIf(val, out, flag, nodeLoc, relativePath) {  argument
929   if (!REG_DATA_BINDING.test(val)) {
930     if (val.trim() === 'false') {
931       val = card ? false : '{{false}}'
932     } else if (val.trim() === 'true') {
933       val = card ? true : '{{true}}'
939         reason: 'ERROR: if value cannot be ' + val + '. The default value is true or false.'
944     const content = val.replace('{{', '').replace('}}', '')
945     val = !card ? '{{!(' + content + ')}}' :
946       REG_DATA_BINDING.test(val) ? '!{{' + content + '}}' : '!' + content
948   const value = bind(val, undefined, false, out, nodeLoc)
961 function validateElif(val, out, flag, nodeLoc, relativePath) {  argument
962   if (!REG_DATA_BINDING.test(val)) {
963     val = card ? val : '{{' + val + '}}'
965   if (val) {
967       const first = val.indexOf('&&')
969         '{{!(' + val.substr(2, first - 2) + ')' :
970         REG_DATA_BINDING.test(val) ?
971         '!{{' + val.substr(2, first - 2) :
972         '!' + val.substr(0, first)
973       val = content + val.substr(first, val.length)
975     const value = bind(val, undefined, false, out, nodeLoc)
989 function validateFor(val, out, nodeLoc, relativePath) {  argument
991   if (val) {
992     if (val.startsWith('{{') && val.endsWith('}}')) {
993       val = val.substr(2, val.length - 4)
996     const suffix = val.match(/(?<=in\s)(.*)/)
997     const prefix = val.match(/(.*)(?=\s+in\s+)/)
1008       forMatch = bind('{{' + val + '}}', undefined, false, out, nodeLoc)
1044 function validateAppend(val, out, nodeLoc, relativePath) {  argument
1045   if (val) {
1046     out.jsonTemplate.append = bind(val, undefined, true, out, nodeLoc)
1066 function validateEvent(eventName, val, out, pos, relativePath) {  argument
1070   if (name && val) {
1071     if (card && val.match(/(.*)\((.*)\)/)) {
1075         reason: 'ERROR: The event `' + val + '` does not support.'
1079     if (REG_DATA_BINDING.test(val)) {
1080       val = bind.removeAllExpFix(val.trim())
1083     const empty = val.match(/(.*)\(\)$/)
1085       val = empty[1]
1087       const content = val.match(REG_EVENT)
1093           val = eval('(function (evt) {' + bind('{{' + functionName + '(' + paramList + ',evt)}}',
1098     distributeEvent(out, eventName, name, val)
1103 function distributeEvent(out, eventName, name, val) {  argument
1109         out.jsonTemplate.catchCaptureEvents[name] = val
1112         out.jsonTemplate.catchBubbleEvents[name] = val
1116       out.jsonTemplate.onCaptureEvents[name] = val
1119       out.jsonTemplate.onBubbleEvents[name] = val
1125     out.jsonTemplate.catchBubbleEvents[name] = val
1128     out.jsonTemplate.onBubbleEvents[name] = val
1132   out.jsonTemplate.events[name] = val