| Path : /var/www/html/mertbinici/BusinessBooster/node_modules/postgres-array/ |
|
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| Current File : /var/www/html/mertbinici/BusinessBooster/node_modules/postgres-array/index.js |
'use strict'
exports.parse = function (source, transform) {
return parsePostgresArray(source, transform)
}
function parsePostgresArray (source, transform, nested = false) {
let character = ''
let quote = false
let position = 0
let dimension = 0
const entries = []
let recorded = ''
const newEntry = function (includeEmpty) {
let entry = recorded
if (entry.length > 0 || includeEmpty) {
if (entry === 'NULL' && !includeEmpty) {
entry = null
}
if (entry !== null && transform) {
entry = transform(entry)
}
entries.push(entry)
recorded = ''
}
}
if (source[0] === '[') {
while (position < source.length) {
const char = source[position++]
if (char === '=') { break }
}
}
while (position < source.length) {
let escaped = false
character = source[position++]
if (character === '\\') {
character = source[position++]
escaped = true
}
if (character === '{' && !quote) {
dimension++
if (dimension > 1) {
const parser = parsePostgresArray(source.substr(position - 1), transform, true)
entries.push(parser.entries)
position += parser.position - 2
}
} else if (character === '}' && !quote) {
dimension--
if (!dimension) {
newEntry()
if (nested) {
return {
entries,
position
}
}
}
} else if (character === '"' && !escaped) {
if (quote) {
newEntry(true)
}
quote = !quote
} else if (character === ',' && !quote) {
newEntry()
} else {
recorded += character
}
}
if (dimension !== 0) {
throw new Error('array dimension not balanced')
}
return entries
}