@hebcal/leyning

Javascript Torah Reading API for Parashat HaShavua and holidays

This package includes both traditional (full kriyah) and weekday Torah readings.

Triennial Torah Readings have moved to @hebcal/triennial

Installation

$ npm install @hebcal/leyning

Synopsis

import {HebrewCalendar, HDate, Event} from '@hebcal/core';
import {getLeyningForParshaHaShavua, formatAliyahWithBook} from '@hebcal/leyning';

const events = HebrewCalendar.calendar({sedrot: true, noHolidays: true});
const ev = events.find((ev) => ev.getDesc() == 'Parashat Pinchas');
const reading = getLeyningForParshaHaShavua(ev, false);
console.log(`${ev.getDesc()}: ${reading.summary}`);
console.log(`Haftara: ${reading.haftara}`);
for (const [num, aliyah] of Object.entries(reading.fullkriyah)) {
  const number = num == 'M' ? 'maftir' : `aliyah ${num}`;
  let str = formatAliyahWithBook(aliyah);
  if (reading.reason[num]) {
      str += ' | ' + reading.reason[num];
  }
  str += ` (${aliyah.v} verses)`;
  console.log(`${number}: ${str}`);
}

Constants

BOOK : Array.<string>: Names of the books of the Torah. BOOK[1] === 'Genesis'

Functions

parshaToString(parsha) ⇒ string

Formats parsha as a string

clone(src) ⇒ any

Makes a deep copy of the src object using JSON stringify and parse

calculateNumVerses(aliyah) ⇒ number

Calculates the number of verses in an aliyah or haftara based on the b (begin verse), e (end verse) and k (book). Modifies aliyah by setting the v field.

formatAliyahWithBook(a) ⇒ string

Formats an aliyah object like "Numbers 28:9-28:15"

formatAliyahShort(aliyah, showBook) ⇒ string

Formats an aliyah object like "Numbers 28:9-15"

sumVerses(aliyot) ⇒ number

Returns the total number of verses in an array of Aliyah (or haftarah) objects

makeLeyningParts(aliyot) ⇒ Array.<Aliyah>

Summarizes an AliyotMap by collapsing all adjacent aliyot. Finds any non-overlapping parts (e.g. special 7th aliyah or maftir)

makeSummaryFromParts(parts) ⇒ string

Returns a string representation of the leyning parts. Separate verse ranges read from the same book are separated by commas, e.g. Isaiah 6:1-7:6, 9:5-6. Verse ranges from different books are separated by semicolons, e.g. Genesis 21:1-34; Numbers 29:1-6.

makeLeyningSummary(aliyot) ⇒ string

Makes a summary of the leyning, like "Genesis 6:9-11:32"

hasFestival(holiday) ⇒ boolean

Is there a special festival Torah Reading for holiday?

lookupFestival(holiday) ⇒ any

Returns the raw metadata for festival reading for holiday

getLeyningKeyForEvent(ev, [il]) ⇒ string

Based on the event date, type and title, finds the relevant leyning key

specialReadings2(parsha, hd, il, aliyot) ⇒ SpecialReading

Determines if the regular parashat haShavua coincides with an event that requires a special maftir or Haftara (for example Shabbat HaGadol, Shabbat Chanukah, Rosh Chodesh or Machar Chodesh, etc.).

This function does not modify aliyot. Instead, it returns a deep copy with aliyot['M'] replaced and sets reason.M (and in some cases the 6th and 7th aliyah, setting reason['7']).

If a special Haftarah applies, the result will have a haft property pointing to Haftarah object and sets reason.haftara.

getLeyningForHolidayKey(key, [cholHaMoedDay]) ⇒ Leyning

Looks up leyning for a given holiday key. Key should be an (untranslated) string used in holiday-readings.json. Returns some of full kriyah aliyot, special Maftir, special Haftarah

getLeyningForHoliday(ev, [il]) ⇒ Leyning

Looks up leyning for a given holiday. Returns some of full kriyah aliyot, special Maftir, special Haftarah

getWeekdayReading(parsha) ⇒ Object.<string, Aliyah>

Looks up Monday/Thursday aliyot for a regular parsha

getLeyningForParsha(parsha) ⇒ Leyning

Looks up regular leyning for a weekly parsha with no special readings

getLeyningForParshaHaShavua(ev, [il]) ⇒ Leyning

Looks up leyning for a regular Shabbat parsha, including any special maftir or Haftara.

getLeyningOnDate(hdate, il, [wantarray]) ⇒ Leyning | Array.<Leyning>

Looks up leyning for a regular Shabbat, Monday/Thursday weekday or holiday.

If hdate coincides with a holiday that has Torah reading, returns the reading for that day (see getLeyningForHoliday)

Otherwise, if hdate is a Saturday, returns getLeyningForParshaHaShavua

Otherwise, if hdate is a Monday or Thursday, returns Leyning for the Parashat haShavua, containing only the weekday aliyot (no fullkriyah).

Otherwise, returns undefined.

lookupParsha(parsha) ⇒ ParshaMeta

Returns the parsha metadata

writeCsvLines(stream, ev, reading, il, isParsha)

Formats reading for CSV

Typedefs

Aliyah : Object: Represents an aliyah
SpecialReading : Object: Leyning for a parsha hashavua or holiday
LeyningNames : Object: Name of the parsha hashavua or holiday
Leyning : Object: Leyning for a parsha hashavua or holiday
ParshaMeta : Object: Parsha metadata

BOOK : `Array.<string>`

Names of the books of the Torah. BOOK[1] === 'Genesis'

Kind: global constant
Read only: true

parshaToString(parsha) ⇒ `string`

Formats parsha as a string

Kind: global function

Param	Type	Description
parsha	`string` \| `Array.<string>`	untranslated name like 'Pinchas' or ['Pinchas'] or ['Matot','Masei']

clone(src) ⇒ `any`

Makes a deep copy of the src object using JSON stringify and parse

Kind: global function

Param	Type
src	`any`

calculateNumVerses(aliyah) ⇒ `number`

Calculates the number of verses in an aliyah or haftara based on the b (begin verse), e (end verse) and k (book). Modifies aliyah by setting the v field.

Kind: global function

Param	Type
aliyah	`Aliyah`

formatAliyahWithBook(a) ⇒ `string`

Formats an aliyah object like "Numbers 28:9-28:15"

Kind: global function

Param	Type	Description
a	`Aliyah`	aliyah

formatAliyahShort(aliyah, showBook) ⇒ `string`

Formats an aliyah object like "Numbers 28:9-15"

Kind: global function

Param	Type
aliyah	`Aliyah`
showBook	`boolean`

sumVerses(aliyot) ⇒ `number`

Returns the total number of verses in an array of Aliyah (or haftarah) objects

Kind: global function

Param	Type
aliyot	`Aliyah` \| `Array.<Aliyah>`

makeLeyningParts(aliyot) ⇒ `Array.<Aliyah>`

Summarizes an AliyotMap by collapsing all adjacent aliyot. Finds any non-overlapping parts (e.g. special 7th aliyah or maftir)

Kind: global function

Param	Type
aliyot	`Object.<string, Aliyah>`

makeSummaryFromParts(parts) ⇒ `string`

Kind: global function

Param	Type
parts	`Aliyah` \| `Array.<Aliyah>`

makeLeyningSummary(aliyot) ⇒ `string`

Makes a summary of the leyning, like "Genesis 6:9-11:32"

Kind: global function

Param	Type
aliyot	`Object.<string, Aliyah>`

hasFestival(holiday) ⇒ `boolean`

Is there a special festival Torah Reading for holiday?

Kind: global function

Param	Type
holiday	`string`

lookupFestival(holiday) ⇒ `any`

Returns the raw metadata for festival reading for holiday

Kind: global function

Param	Type
holiday	`string`

getLeyningKeyForEvent(ev, [il]) ⇒ `string`

Based on the event date, type and title, finds the relevant leyning key

Kind: global function
Returns: string - key to look up in holiday-reading.json

Param	Type	Default	Description
ev	`Event`		event
[il]	`boolean`	`false`	true if Israel holiday scheme

specialReadings2(parsha, hd, il, aliyot) ⇒ `SpecialReading`

Determines if the regular parashat haShavua coincides with an event that requires a special maftir or Haftara (for example Shabbat HaGadol, Shabbat Chanukah, Rosh Chodesh or Machar Chodesh, etc.).

This function does not modify aliyot. Instead, it returns a deep copy with aliyot['M'] replaced and sets reason.M (and in some cases the 6th and 7th aliyah, setting reason['7']).

If a special Haftarah applies, the result will have a haft property pointing to Haftarah object and sets reason.haftara.

Kind: global function

Param	Type
parsha	`Array.<string>`
hd	`HDate`
il	`boolean`
aliyot	`Object.<string, Aliyah>`

getLeyningForHolidayKey(key, [cholHaMoedDay]) ⇒ `Leyning`

Looks up leyning for a given holiday key. Key should be an (untranslated) string used in holiday-readings.json. Returns some of full kriyah aliyot, special Maftir, special Haftarah

Kind: global function
Returns: Leyning - map of aliyot

Param	Type	Description
key	`string`	name from `holiday-readings.json` to find
[cholHaMoedDay]	`number`

getLeyningForHoliday(ev, [il]) ⇒ `Leyning`

Looks up leyning for a given holiday. Returns some of full kriyah aliyot, special Maftir, special Haftarah

Kind: global function
Returns: Leyning - map of aliyot

Param	Type	Default	Description
ev	`Event`		the Hebcal event associated with this leyning
[il]	`boolean`	`false`	true if Israel holiday scheme

getWeekdayReading(parsha) ⇒ `Object.<string, Aliyah>`

Looks up Monday/Thursday aliyot for a regular parsha

Kind: global function
Returns: Object.<string, Aliyah> - map of aliyot

Param	Type	Description
parsha	`string` \| `Array.<string>`	untranslated name like 'Pinchas' or ['Pinchas'] or ['Matot','Masei']

getLeyningForParsha(parsha) ⇒ `Leyning`

Looks up regular leyning for a weekly parsha with no special readings

Kind: global function
Returns: Leyning - map of aliyot

Param	Type	Description
parsha	`string` \| `Array.<string>`	untranslated name like 'Pinchas' or ['Pinchas'] or ['Matot','Masei']

getLeyningForParshaHaShavua(ev, [il]) ⇒ `Leyning`

Looks up leyning for a regular Shabbat parsha, including any special maftir or Haftara.

Kind: global function
Returns: Leyning - map of aliyot

Param	Type	Default	Description
ev	`Event`		the Hebcal event associated with this leyning
[il]	`boolean`	`false`	in Israel

getLeyningOnDate(hdate, il, [wantarray]) ⇒ `Leyning` | `Array.<Leyning>`

Looks up leyning for a regular Shabbat, Monday/Thursday weekday or holiday.

If hdate coincides with a holiday that has Torah reading, returns the reading for that day (see getLeyningForHoliday)

Otherwise, if hdate is a Saturday, returns getLeyningForParshaHaShavua

Otherwise, if hdate is a Monday or Thursday, returns Leyning for the Parashat haShavua, containing only the weekday aliyot (no fullkriyah).

Otherwise, returns undefined.

Kind: global function
Returns: Leyning | Array.<Leyning> - map of aliyot

Param	Type	Default	Description
hdate	`HDate`		Hebrew Date
il	`boolean`		in Israel
[wantarray]	`boolean`	`false`	to return an array of 0 or more readings

lookupParsha(parsha) ⇒ `ParshaMeta`

Returns the parsha metadata

Kind: global function

Param	Type	Description
parsha	`string` \| `Array.<string>`	untranslated name like 'Pinchas' or ['Pinchas'] or ['Matot','Masei']

writeCsvLines(stream, ev, reading, il, isParsha)

Formats reading for CSV

Kind: global function

Param	Type
stream	`fs.WriteStream`
ev	`Event`
reading	`Leyning`
il	`boolean`
isParsha	`boolean`