FM / postgres-array

/opt/canhelp/node_modules/postgres-array/

/opt/canhelp/node_modules/postgres-array

Name	Size	Mode	Actions
index.d.ts	131	0644	edit dl rm
index.js	2320	0644	edit dl rm
license	1111	0644	edit dl rm
package.json	649	0644	edit dl rm
readme.md	692	0644	edit dl rm

Edit: /opt/canhelp/node_modules/postgres-array/index.js (2320B)

'use strict'

exports.parse = function (source, transform) {
  return new ArrayParser(source, transform).parse()
}

class ArrayParser {
  constructor (source, transform) {
    this.source = source
    this.transform = transform || identity
    this.position = 0
    this.entries = []
    this.recorded = []
    this.dimension = 0
  }

isEof () {
    return this.position >= this.source.length
  }

nextCharacter () {
    var character = this.source[this.position++]
    if (character === '\\') {
      return {
        value: this.source[this.position++],
        escaped: true
      }
    }
    return {
      value: character,
      escaped: false
    }
  }

record (character) {
    this.recorded.push(character)
  }

newEntry (includeEmpty) {
    var entry
    if (this.recorded.length > 0 || includeEmpty) {
      entry = this.recorded.join('')
      if (entry === 'NULL' && !includeEmpty) {
        entry = null
      }
      if (entry !== null) entry = this.transform(entry)
      this.entries.push(entry)
      this.recorded = []
    }
  }

consumeDimensions () {
    if (this.source[0] === '[') {
      while (!this.isEof()) {
        var char = this.nextCharacter()
        if (char.value === '=') break
      }
    }
  }

parse (nested) {
    var character, parser, quote
    this.consumeDimensions()
    while (!this.isEof()) {
      character = this.nextCharacter()
      if (character.value === '{' && !quote) {
        this.dimension++
        if (this.dimension > 1) {
          parser = new ArrayParser(this.source.substr(this.position - 1), this.transform)
          this.entries.push(parser.parse(true))
          this.position += parser.position - 2
        }
      } else if (character.value === '}' && !quote) {
        this.dimension--
        if (!this.dimension) {
          this.newEntry()
          if (nested) return this.entries
        }
      } else if (character.value === '"' && !character.escaped) {
        if (quote) this.newEntry(true)
        quote = !quote
      } else if (character.value === ',' && !quote) {
        this.newEntry()
      } else {
        this.record(character.value)
      }
    }
    if (this.dimension !== 0) {
      throw new Error('array dimension not balanced')
    }
    return this.entries
  }
}

function identity (value) {
  return value
}

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