A better TOML mode for Codemirror

# Tables (also known as hash tables or dictionaries) are collections of
# key/value pairs. They appear in square brackets on a line by themselves.

[table]

key = "value" # Yeah, you can do this.

[table.subtable]

key = "another value"

[x.y.z.w] # for this to work

[table.inline]

name = { first = "Tom", last = "Preston-Werner" }
point = { x = 1, y = 2 }

[string.basic]

basic = "I'm a string. \"You can quote me\". Name\tJos\u00E9\nLocation\tSF."

[string.multiline]

# The following strings are byte-for-byte equivalent:
key1 = "One\nTwo"
key2 = """One\nTwo"""
key3 = """
One
Two"""

[string.multiline.continued]

# The following strings are byte-for-byte equivalent:
key1 = "The quick brown fox jumps over the lazy dog."

key2 = """
The quick brown \

fox jumps over \
    the lazy dog."""

key3 = """\
       The quick brown \
       fox jumps over \
       the lazy dog.\
       """

[string.literal]

# What you see is what you get.
winpath  = 'C:\Users\nodejs\templates'
winpath2 = '\\ServerX\admin$\system32\'
quoted   = 'Tom "Dubs" Preston-Werner'
regex    = '<\i\c*\s*>'

[string.literal.multiline]

regex2 = '''I [dw]on't need \d{2} apples'''
lines  = '''
The first newline is
trimmed in raw strings.
   All other whitespace
   is preserved.
'''

################################################################################
## Integer

# Integers are whole numbers. Positive numbers may be prefixed with a plus sign.
# Negative numbers are prefixed with a minus sign.

[integer]

key1 = +99
key2 = 42
key3 = 0
key4 = -17

[integer.underscores]

# For large numbers, you may use underscores to enhance readability. Each
# underscore must be surrounded by at least one digit.
key1 = 1_000
key2 = 5_349_221
key3 = 1_2_3_4_5     # valid but inadvisable

################################################################################
## Float

# A float consists of an integer part (which may be prefixed with a plus or
# minus sign) followed by a fractional part and/or an exponent part.

[float.fractional]

key1 = +1.0
key2 = 3.1415
key3 = -0.01

[float.exponent]

key1 = 5e+22
key2 = 1e6
key3 = -2E-2

[float.both]

key = 6.626e-34

[float.underscores]

key1 = 9_224_617.445_991_228_313
key2 = 1e1_000

################################################################################
## Boolean

# Booleans are just the tokens you're used to. Always lowercase.

[boolean]

True = true
False = false

################################################################################
## Datetime

# Datetimes are RFC 3339 dates.

[datetime]

key1 = 1979-05-27T07:32:00Z
key2 = 1979-05-27T00:32:00-07:00
key3 = 1979-05-27T00:32:00.999999-07:00

################################################################################
## Array

# Arrays are square brackets with other primitives inside. Whitespace is
# ignored. Elements are separated by commas. Data types may not be mixed.

[array]

key1 = [ 1, 2, 3 ]
key2 = [ "red", "yellow", "green" ]
key3 = [ [ 1, 2 ], [3, 4, 5] ]
key4 = [ [ 1, 2 ], ["a", "b", "c"] ] # this is ok

# Arrays can also be multiline. So in addition to ignoring whitespace, arrays
# also ignore newlines between the brackets.  Terminating commas are ok before
# the closing bracket.

key5 = [
  1, 2, 3
]
key6 = [
  1,
  2, # this is ok
]

################################################################################
## Array of Tables

# These can be expressed by using a table name in double brackets. Each table
# with the same double bracketed name will be an element in the array. The
# tables are inserted in the order encountered.

[[products]]

name = "Hammer"
sku = 738594937

[[products]]

name = "Nail"
sku = 284758393
color = "gray"

# You can create nested arrays of tables as well.

[[fruit]]
  name = "apple"

[fruit.physical]
    color = "red"
    shape = "round"

[[fruit.variety]]
    name = "red delicious"

[[fruit.variety]]
    name = "granny smith"

[[fruit]]
  name = "banana"

[[fruit.variety]]
    name = "plantain"