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/* eslint no-prototype-builtins: 0 */
/**
* jQuery-csv (jQuery Plugin)
*
* This document is licensed as free software under the terms of the
* MIT License: http://www.opensource.org/licenses/mit-license.php
*
* Acknowledgements:
* The original design and influence to implement this library as a jquery
* plugin is influenced by jquery-json (http://code.google.com/p/jquery-json/).
* If you're looking to use native JSON.Stringify but want additional backwards
* compatibility for browsers that don't support it, I highly recommend you
* check it out.
*
* A special thanks goes out to rwk@acm.org for providing a lot of valuable
* feedback to the project including the core for the new FSM
* (Finite State Machine) parsers. If you're looking for a stable TSV parser
* be sure to take a look at jquery-tsv (http://code.google.com/p/jquery-tsv/).
* For legal purposes I'll include the "NO WARRANTY EXPRESSED OR IMPLIED.
* USE AT YOUR OWN RISK.". Which, in 'layman's terms' means, by using this
* library you are accepting responsibility if it breaks your code.
*
* Legal jargon aside, I will do my best to provide a useful and stable core
* that can effectively be built on.
*
* Copyrighted 2012 by Evan Plaice.
*/
RegExp.escape = function (s) {
return s.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&')
};
(function () {
'use strict'
let $
// to keep backwards compatibility
if (typeof jQuery !== 'undefined' && jQuery) {
$ = jQuery
} else {
$ = {}
}
/**
* jQuery.csv.defaults
* Encapsulates the method paramater defaults for the CSV plugin module.
*/
$.csv = {
defaults: {
separator: ',',
delimiter: '"',
headers: true
},
hooks: {
castToScalar: function (value, state) {
const hasDot = /\./
if (isNaN(value)) {
return value
} else {
if (hasDot.test(value)) {
return parseFloat(value)
} else {
const integer = parseInt(value)
if (isNaN(integer)) {
return null
} else {
return integer
}
}
}
}
},
parsers: {
parse: function (csv, options) {
// cache settings
const separator = options.separator
const delimiter = options.delimiter
// set initial state if it's missing
if (!options.state.rowNum) {
options.state.rowNum = 1
}
if (!options.state.colNum) {
options.state.colNum = 1
}
// clear initial state
const data = []
let entry = []
let state = 0
let value = ''
let exit = false
function endOfEntry () {
// reset the state
state = 0
value = ''
// if 'start' hasn't been met, don't output
if (options.start && options.state.rowNum < options.start) {
// update global state
entry = []
options.state.rowNum++
options.state.colNum = 1
return
}
if (options.onParseEntry === undefined) {
// onParseEntry hook not set
data.push(entry)
} else {
const hookVal = options.onParseEntry(entry, options.state) // onParseEntry Hook
// false skips the row, configurable through a hook
if (hookVal !== false) {
data.push(hookVal)
}
}
// console.log('entry:' + entry);
// cleanup
entry = []
// if 'end' is met, stop parsing
if (options.end && options.state.rowNum >= options.end) {
exit = true
}
// update global state
options.state.rowNum++
options.state.colNum = 1
}
function endOfValue () {
if (options.onParseValue === undefined) {
// onParseValue hook not set
entry.push(value)
} else if (options.headers && options.state.rowNum === 1) {
// don't onParseValue object headers
entry.push(value)
} else {
const hook = options.onParseValue(value, options.state) // onParseValue Hook
// false skips the row, configurable through a hook
if (hook !== false) {
entry.push(hook)
}
}
// console.log('value:' + value);
// reset the state
value = ''
state = 0
// update global state
options.state.colNum++
}
// escape regex-specific control chars
const escSeparator = RegExp.escape(separator)
const escDelimiter = RegExp.escape(delimiter)
// compile the regEx str using the custom delimiter/separator
let match = /(D|S|\r\n|\n|\r|[^DS\r\n]+)/
let matchSrc = match.source
matchSrc = matchSrc.replace(/S/g, escSeparator)
matchSrc = matchSrc.replace(/D/g, escDelimiter)
match = new RegExp(matchSrc, 'gm')
// put on your fancy pants...
// process control chars individually, use look-ahead on non-control chars
csv.replace(match, function (m0) {
if (exit) {
return
}
switch (state) {
// the start of a value
case 0:
// null last value
if (m0 === separator) {
value += ''
endOfValue()
break
}
// opening delimiter
if (m0 === delimiter) {
state = 1
break
}
// null last value
if (/^(\r\n|\n|\r)$/.test(m0)) {
endOfValue()
endOfEntry()
break
}
// un-delimited value
value += m0
state = 3
break
// delimited input
case 1:
// second delimiter? check further
if (m0 === delimiter) {
state = 2
break
}
// delimited data
value += m0
state = 1
break
// delimiter found in delimited input
case 2:
// escaped delimiter?
if (m0 === delimiter) {
value += m0
state = 1
break
}
// null value
if (m0 === separator) {
endOfValue()
break
}
// end of entry
if (/^(\r\n|\n|\r)$/.test(m0)) {
endOfValue()
endOfEntry()
break
}
// broken paser?
throw Error('CSVDataError: Illegal State [Row:' + options.state.rowNum + '][Col:' + options.state.colNum + ']')
// un-delimited input
case 3:
// null last value
if (m0 === separator) {
endOfValue()
break
}
// end of entry
if (/^(\r\n|\n|\r)$/.test(m0)) {
endOfValue()
endOfEntry()
break
}
if (m0 === delimiter) {
// non-compliant data
throw Error('CSVDataError: Illegal Quote [Row:' + options.state.rowNum + '][Col:' + options.state.colNum + ']')
}
// broken parser?
throw Error('CSVDataError: Illegal Data [Row:' + options.state.rowNum + '][Col:' + options.state.colNum + ']')
default:
// shenanigans
throw Error('CSVDataError: Unknown State [Row:' + options.state.rowNum + '][Col:' + options.state.colNum + ']')
}
// console.log('val:' + m0 + ' state:' + state);
})
// submit the last entry
// ignore null last line
if (entry.length !== 0) {
endOfValue()
endOfEntry()
}
return data
},
// a csv-specific line splitter
splitLines: function (csv, options) {
if (!csv) {
return undefined
}
options = options || {}
// cache settings
const separator = options.separator || $.csv.defaults.separator
const delimiter = options.delimiter || $.csv.defaults.delimiter
// set initial state if it's missing
options.state = options.state || {}
if (!options.state.rowNum) {
options.state.rowNum = 1
}
// clear initial state
const entries = []
let state = 0
let entry = ''
let exit = false
function endOfLine () {
// reset the state
state = 0
// if 'start' hasn't been met, don't output
if (options.start && options.state.rowNum < options.start) {
// update global state
entry = ''
options.state.rowNum++
return
}
if (options.onParseEntry === undefined) {
// onParseEntry hook not set
entries.push(entry)
} else {
const hookVal = options.onParseEntry(entry, options.state) // onParseEntry Hook
// false skips the row, configurable through a hook
if (hookVal !== false) {
entries.push(hookVal)
}
}
// cleanup
entry = ''
// if 'end' is met, stop parsing
if (options.end && options.state.rowNum >= options.end) {
exit = true
}
// update global state
options.state.rowNum++
}
// escape regex-specific control chars
const escSeparator = RegExp.escape(separator)
const escDelimiter = RegExp.escape(delimiter)
// compile the regEx str using the custom delimiter/separator
let match = /(D|S|\n|\r|[^DS\r\n]+)/
let matchSrc = match.source
matchSrc = matchSrc.replace(/S/g, escSeparator)
matchSrc = matchSrc.replace(/D/g, escDelimiter)
match = new RegExp(matchSrc, 'gm')
// put on your fancy pants...
// process control chars individually, use look-ahead on non-control chars
csv.replace(match, function (m0) {
if (exit) {
return
}
switch (state) {
// the start of a value/entry
case 0:
// null value
if (m0 === separator) {
entry += m0
state = 0
break
}
// opening delimiter
if (m0 === delimiter) {
entry += m0
state = 1
break
}
// end of line
if (m0 === '\n') {
endOfLine()
break
}
// phantom carriage return
if (/^\r$/.test(m0)) {
break
}
// un-delimit value
entry += m0
state = 3
break
// delimited input
case 1:
// second delimiter? check further
if (m0 === delimiter) {
entry += m0
state = 2
break
}
// delimited data
entry += m0
state = 1
break
// delimiter found in delimited input
case 2: {
// escaped delimiter?
const prevChar = entry.substr(entry.length - 1)
if (m0 === delimiter && prevChar === delimiter) {
entry += m0
state = 1
break
}
// end of value
if (m0 === separator) {
entry += m0
state = 0
break
}
// end of line
if (m0 === '\n') {
endOfLine()
break
}
// phantom carriage return
if (m0 === '\r') {
break
}
// broken paser?
throw Error('CSVDataError: Illegal state [Row:' + options.state.rowNum + ']')
}
// un-delimited input
case 3:
// null value
if (m0 === separator) {
entry += m0
state = 0
break
}
// end of line
if (m0 === '\n') {
endOfLine()
break
}
// phantom carriage return
if (m0 === '\r') {
break
}
// non-compliant data
if (m0 === delimiter) {
throw Error('CSVDataError: Illegal quote [Row:' + options.state.rowNum + ']')
}
// broken parser?
throw Error('CSVDataError: Illegal state [Row:' + options.state.rowNum + ']')
default:
// shenanigans
throw Error('CSVDataError: Unknown state [Row:' + options.state.rowNum + ']')
}
// console.log('val:' + m0 + ' state:' + state);
})
// submit the last entry
// ignore null last line
if (entry !== '') {
endOfLine()
}
return entries
},
// a csv entry parser
parseEntry: function (csv, options) {
// cache settings
const separator = options.separator
const delimiter = options.delimiter
// set initial state if it's missing
if (!options.state.rowNum) {
options.state.rowNum = 1
}
if (!options.state.colNum) {
options.state.colNum = 1
}
// clear initial state
const entry = []
let state = 0
let value = ''
function endOfValue () {
if (options.onParseValue === undefined) {
// onParseValue hook not set
entry.push(value)
} else {
const hook = options.onParseValue(value, options.state) // onParseValue Hook
// false skips the value, configurable through a hook
if (hook !== false) {
entry.push(hook)
}
}
// reset the state
value = ''
state = 0
// update global state
options.state.colNum++
}
// checked for a cached regEx first
if (!options.match) {
// escape regex-specific control chars
const escSeparator = RegExp.escape(separator)
const escDelimiter = RegExp.escape(delimiter)
// compile the regEx str using the custom delimiter/separator
const match = /(D|S|\n|\r|[^DS\r\n]+)/
let matchSrc = match.source
matchSrc = matchSrc.replace(/S/g, escSeparator)
matchSrc = matchSrc.replace(/D/g, escDelimiter)
options.match = new RegExp(matchSrc, 'gm')
}
// put on your fancy pants...
// process control chars individually, use look-ahead on non-control chars
csv.replace(options.match, function (m0) {
switch (state) {
// the start of a value
case 0:
// null last value
if (m0 === separator) {
value += ''
endOfValue()
break
}
// opening delimiter
if (m0 === delimiter) {
state = 1
break
}
// skip un-delimited new-lines
if (m0 === '\n' || m0 === '\r') {
break
}
// un-delimited value
value += m0
state = 3
break
// delimited input
case 1:
// second delimiter? check further
if (m0 === delimiter) {
state = 2
break
}
// delimited data
value += m0
state = 1
break
// delimiter found in delimited input
case 2:
// escaped delimiter?
if (m0 === delimiter) {
value += m0
state = 1
break
}
// null value
if (m0 === separator) {
endOfValue()
break
}
// skip un-delimited new-lines
if (m0 === '\n' || m0 === '\r') {
break
}
// broken paser?
throw Error('CSVDataError: Illegal State [Row:' + options.state.rowNum + '][Col:' + options.state.colNum + ']')
// un-delimited input
case 3:
// null last value
if (m0 === separator) {
endOfValue()
break
}
// skip un-delimited new-lines
if (m0 === '\n' || m0 === '\r') {
break
}
// non-compliant data
if (m0 === delimiter) {
throw Error('CSVDataError: Illegal Quote [Row:' + options.state.rowNum + '][Col:' + options.state.colNum + ']')
}
// broken parser?
throw Error('CSVDataError: Illegal Data [Row:' + options.state.rowNum + '][Col:' + options.state.colNum + ']')
default:
// shenanigans
throw Error('CSVDataError: Unknown State [Row:' + options.state.rowNum + '][Col:' + options.state.colNum + ']')
}
// console.log('val:' + m0 + ' state:' + state);
})
// submit the last value
endOfValue()
return entry
}
},
helpers: {
/**
* $.csv.helpers.collectPropertyNames(objectsArray)
* Collects all unique property names from all passed objects.
*
* @param {Array} objects Objects to collect properties from.
*
* Returns an array of property names (array will be empty,
* if objects have no own properties).
*/
collectPropertyNames: function (objects) {
let o = []
let propName = []
const props = []
for (o in objects) {
for (propName in objects[o]) {
if ((objects[o].hasOwnProperty(propName)) &&
(props.indexOf(propName) < 0) &&
(typeof objects[o][propName] !== 'function')) {
props.push(propName)
}
}
}
return props
}
},
/**
* $.csv.toArray(csv)
* Converts a CSV entry string to a javascript array.
*
* @param {Array} csv The string containing the CSV data.
* @param {Object} [options] An object containing user-defined options.
* @param {Character} [separator] An override for the separator character. Defaults to a comma(,).
* @param {Character} [delimiter] An override for the delimiter character. Defaults to a double-quote(").
*
* This method deals with simple CSV strings only. It's useful if you only
* need to parse a single entry. If you need to parse more than one line,
* use $.csv2Array instead.
*/
toArray: function (csv, options, callback) {
// if callback was passed to options swap callback with options
if (options !== undefined && typeof (options) === 'function') {
if (callback !== undefined) {
return console.error('You cannot 3 arguments with the 2nd argument being a function')
}
callback = options
options = {}
}
options = (options !== undefined ? options : {})
const config = {}
config.callback = ((callback !== undefined && typeof (callback) === 'function') ? callback : false)
config.separator = 'separator' in options ? options.separator : $.csv.defaults.separator
config.delimiter = 'delimiter' in options ? options.delimiter : $.csv.defaults.delimiter
const state = (options.state !== undefined ? options.state : {})
// setup
options = {
delimiter: config.delimiter,
separator: config.separator,
onParseEntry: options.onParseEntry,
onParseValue: options.onParseValue,
state: state
}
const entry = $.csv.parsers.parseEntry(csv, options)
// push the value to a callback if one is defined
if (!config.callback) {
return entry
} else {
config.callback('', entry)
}
},
/**
* $.csv.toArrays(csv)
* Converts a CSV string to a javascript array.
*
* @param {String} csv The string containing the raw CSV data.
* @param {Object} [options] An object containing user-defined options.
* @param {Character} [separator] An override for the separator character. Defaults to a comma(,).
* @param {Character} [delimiter] An override for the delimiter character. Defaults to a double-quote(").
*
* This method deals with multi-line CSV. The breakdown is simple. The first
* dimension of the array represents the line (or entry/row) while the second
* dimension contains the values (or values/columns).
*/
toArrays: function (csv, options, callback) {
// if callback was passed to options swap callback with options
if (options !== undefined && typeof (options) === 'function') {
if (callback !== undefined) {
return console.error('You cannot 3 arguments with the 2nd argument being a function')
}
callback = options
options = {}
}
options = (options !== undefined ? options : {})
const config = {}
config.callback = ((callback !== undefined && typeof (callback) === 'function') ? callback : false)
config.separator = 'separator' in options ? options.separator : $.csv.defaults.separator
config.delimiter = 'delimiter' in options ? options.delimiter : $.csv.defaults.delimiter
// setup
let data = []
options = {
delimiter: config.delimiter,
separator: config.separator,
onPreParse: options.onPreParse,
onParseEntry: options.onParseEntry,
onParseValue: options.onParseValue,
onPostParse: options.onPostParse,
start: options.start,
end: options.end,
state: {
rowNum: 1,
colNum: 1
}
}
// onPreParse hook
if (options.onPreParse !== undefined) {
csv = options.onPreParse(csv, options.state)
}
// parse the data
data = $.csv.parsers.parse(csv, options)
// onPostParse hook
if (options.onPostParse !== undefined) {
data = options.onPostParse(data, options.state)
}
// push the value to a callback if one is defined
if (!config.callback) {
return data
} else {
config.callback('', data)
}
},
/**
* $.csv.toObjects(csv)
* Converts a CSV string to a javascript object.
* @param {String} csv The string containing the raw CSV data.
* @param {Object} [options] An object containing user-defined options.
* @param {Character} [separator] An override for the separator character. Defaults to a comma(,).
* @param {Character} [delimiter] An override for the delimiter character. Defaults to a double-quote(").
* @param {Boolean} [headers] Indicates whether the data contains a header line. Defaults to true.
*
* This method deals with multi-line CSV strings. Where the headers line is
* used as the key for each value per entry.
*/
toObjects: function (csv, options, callback) {
// if callback was passed to options swap callback with options
if (options !== undefined && typeof (options) === 'function') {
if (callback !== undefined) {
return console.error('You cannot 3 arguments with the 2nd argument being a function')
}
callback = options
options = {}
}
options = (options !== undefined ? options : {})
const config = {}
config.callback = ((callback !== undefined && typeof (callback) === 'function') ? callback : false)
config.separator = 'separator' in options ? options.separator : $.csv.defaults.separator
config.delimiter = 'delimiter' in options ? options.delimiter : $.csv.defaults.delimiter
config.headers = 'headers' in options ? options.headers : $.csv.defaults.headers
options.start = 'start' in options ? options.start : 1
// account for headers
if (config.headers) {
options.start++
}
if (options.end && config.headers) {
options.end++
}
// setup
let lines = []
let data = []
options = {
delimiter: config.delimiter,
separator: config.separator,
onPreParse: options.onPreParse,
onParseEntry: options.onParseEntry,
onParseValue: options.onParseValue,
onPostParse: options.onPostParse,
start: options.start,
end: options.end,
state: {
rowNum: 1,
colNum: 1
},
match: false,
transform: options.transform
}
// fetch the headers
const headerOptions = {
delimiter: config.delimiter,
separator: config.separator,
start: 1,
end: 1,
state: {
rowNum: 1,
colNum: 1
},
headers: true
}
// onPreParse hook
if (options.onPreParse !== undefined) {
csv = options.onPreParse(csv, options.state)
}
// parse the csv
const headerLine = $.csv.parsers.splitLines(csv, headerOptions)
const headers = $.csv.toArray(headerLine[0], headerOptions)
// fetch the data
lines = $.csv.parsers.splitLines(csv, options)
// reset the state for re-use
options.state.colNum = 1
if (headers) {
options.state.rowNum = 2
} else {
options.state.rowNum = 1
}
// convert data to objects
for (let i = 0, len = lines.length; i < len; i++) {
const entry = $.csv.toArray(lines[i], options)
const object = {}
for (let j = 0; j < headers.length; j++) {
object[headers[j]] = entry[j]
}
if (options.transform !== undefined) {
data.push(options.transform.call(undefined, object))
} else {
data.push(object)
}
// update row state
options.state.rowNum++
}
// onPostParse hook
if (options.onPostParse !== undefined) {
data = options.onPostParse(data, options.state)
}
// push the value to a callback if one is defined
if (!config.callback) {
return data
} else {
config.callback('', data)
}
},
/**
* $.csv.fromArrays(arrays)
* Converts a javascript array to a CSV String.
*
* @param {Array} arrays An array containing an array of CSV entries.
* @param {Object} [options] An object containing user-defined options.
* @param {Character} [separator] An override for the separator character. Defaults to a comma(,).
* @param {Character} [delimiter] An override for the delimiter character. Defaults to a double-quote(").
*
* This method generates a CSV file from an array of arrays (representing entries).
*/
fromArrays: function (arrays, options, callback) {
// if callback was passed to options swap callback with options
if (options !== undefined && typeof (options) === 'function') {
if (callback !== undefined) {
return console.error('You cannot 3 arguments with the 2nd argument being a function')
}
callback = options
options = {}
}
options = (options !== undefined ? options : {})
const config = {}
config.callback = ((callback !== undefined && typeof (callback) === 'function') ? callback : false)
config.separator = 'separator' in options ? options.separator : $.csv.defaults.separator
config.delimiter = 'delimiter' in options ? options.delimiter : $.csv.defaults.delimiter
let output = ''
for (let i = 0; i < arrays.length; i++) {
const line = arrays[i]
const lineValues = []
for (let j = 0; j < line.length; j++) {
let strValue = (line[j] === undefined || line[j] === null) ? '' : line[j].toString()
if (strValue.indexOf(config.delimiter) > -1) {
strValue = strValue.replace(new RegExp(config.delimiter, 'g'), config.delimiter + config.delimiter)
}
let escMatcher = '\n|\r|S|D'
escMatcher = escMatcher.replace('S', config.separator)
escMatcher = escMatcher.replace('D', config.delimiter)
if (strValue.search(escMatcher) > -1) {
strValue = config.delimiter + strValue + config.delimiter
}
lineValues.push(strValue)
}
output += lineValues.join(config.separator) + '\n'
}
// push the value to a callback if one is defined
if (!config.callback) {
return output
} else {
config.callback('', output)
}
},
/**
* $.csv.fromObjects(objects)
* Converts a javascript dictionary to a CSV string.
*
* @param {Object} objects An array of objects containing the data.
* @param {Object} [options] An object containing user-defined options.
* @param {Character} [separator] An override for the separator character. Defaults to a comma(,).
* @param {Character} [delimiter] An override for the delimiter character. Defaults to a double-quote(").
* @param {Character} [sortOrder] Sort order of columns (named after
* object properties). Use 'alpha' for alphabetic. Default is 'declare',
* which means, that properties will _probably_ appear in order they were
* declared for the object. But without any guarantee.
* @param {Character or Array} [manualOrder] Manually order columns. May be
* a strin in a same csv format as an output or an array of header names
* (array items won't be parsed). All the properties, not present in
* `manualOrder` will be appended to the end in accordance with `sortOrder`
* option. So the `manualOrder` always takes preference, if present.
*
* This method generates a CSV file from an array of objects (name:value pairs).
* It starts by detecting the headers and adding them as the first line of
* the CSV file, followed by a structured dump of the data.
*/
fromObjects: function (objects, options, callback) {
// if callback was passed to options swap callback with options
if (options !== undefined && typeof (options) === 'function') {
if (callback !== undefined) {
return console.error('You cannot 3 arguments with the 2nd argument being a function')
}
callback = options
options = {}
}
options = (options !== undefined ? options : {})
const config = {}
config.callback = ((callback !== undefined && typeof (callback) === 'function') ? callback : false)
config.separator = 'separator' in options ? options.separator : $.csv.defaults.separator
config.delimiter = 'delimiter' in options ? options.delimiter : $.csv.defaults.delimiter
config.headers = 'headers' in options ? options.headers : $.csv.defaults.headers
config.sortOrder = 'sortOrder' in options ? options.sortOrder : 'declare'
config.manualOrder = 'manualOrder' in options ? options.manualOrder : []
config.transform = options.transform
if (typeof config.manualOrder === 'string') {
config.manualOrder = $.csv.toArray(config.manualOrder, config)
}
if (config.transform !== undefined) {
const origObjects = objects
objects = []
for (let i = 0; i < origObjects.length; i++) {
objects.push(config.transform.call(undefined, origObjects[i]))
}
}
let props = $.csv.helpers.collectPropertyNames(objects)
if (config.sortOrder === 'alpha') {
props.sort()
}
if (config.manualOrder.length > 0) {
const propsManual = [].concat(config.manualOrder)
for (let p = 0; p < props.length; p++) {
if (propsManual.indexOf(props[p]) < 0) {
propsManual.push(props[p])
}
}
props = propsManual
}
let line
const output = []
let propName
if (config.headers) {
output.push(props)
}
for (let o = 0; o < objects.length; o++) {
line = []
for (let p = 0; p < props.length; p++) {
propName = props[p]
if (propName in objects[o] && typeof objects[o][propName] !== 'function') {
line.push(objects[o][propName])
} else {
line.push('')
}
}
output.push(line)
}
// push the value to a callback if one is defined
return $.csv.fromArrays(output, options, config.callback)
}
}
// Maintenance code to maintain backward-compatibility
// Will be removed in release 1.0
$.csvEntry2Array = $.csv.toArray
$.csv2Array = $.csv.toArrays
$.csv2Dictionary = $.csv.toObjects
// CommonJS module is defined
if (typeof module !== 'undefined' && module.exports) {
module.exports = $.csv
}
}).call(this)