abjad.scheme

`abjad.parsers.scheme.Scheme`([value])	Abjad model of Scheme code.
`abjad.parsers.scheme.SchemeParser`([debug])	`SchemeParser` mimics how LilyPond's embedded Scheme parser behaves.

class abjad.parsers.scheme.Scheme(value: Any = None)[source]: Abjad model of Scheme code.

class abjad.parsers.scheme.SchemeParser(debug=False)[source]

SchemeParser mimics how LilyPond’s embedded Scheme parser behaves.

It parses a single Scheme expression and then stops, by raising a SchemeParserFinishedError.

The parsed expression and its exact length in characters are cached on the SchemeParser instance.

It is intended to be used only in conjunction with LilyPondParser.

`lexer_rules_object`	Lexer rules object of Scheme parser.
`p_boolean__BOOLEAN`(p)	boolean : BOOLEAN
`p_constant__boolean`(p)	constant : boolean
`p_constant__number`(p)	constant : number
`p_constant__string`(p)	constant : string
`p_data__EMPTY`(p)	data :
`p_data__data__datum`(p)	data : data datum
`p_datum__constant`(p)	datum : constant
`p_datum__list`(p)	datum : list
`p_datum__symbol`(p)	datum : symbol
`p_datum__vector`(p)	datum : vector
`p_error`(p)
`p_expression__QUOTE__datum`(p)	expression : QUOTE datum
`p_expression__constant`(p)	expression : constant
`p_expression__variable`(p)	expression : variable
`p_form__expression`(p)	form : expression
`p_forms__EMPTY`(p)	forms :
`p_forms__forms__form`(p)	forms : forms form
`p_list__L_PAREN__data__R_PAREN`(p)	list : L_PAREN data R_PAREN
`p_list__L_PAREN__data__datum__PERIOD__datum__R_PAREN`(p)	list : L_PAREN data datum PERIOD datum R_PAREN
`p_number__DECIMAL`(p)	number : DECIMAL
`p_number__HEXADECIMAL`(p)	number : HEXADECIMAL
`p_number__INTEGER`(p)	number : INTEGER
`p_program__forms`(p)	program : forms
`p_string__STRING`(p)	string : STRING
`p_symbol__IDENTIFIER`(p)	symbol : IDENTIFIER
`p_variable__IDENTIFIER`(p)	variable : IDENTIFIER
`p_vector__HASH__L_PAREN__data__R_PAREN`(p)	vector : HASH L_PAREN data R_PAREN
`parser_rules_object`	Parser rules object of Scheme parser.
`t_BOOLEAN`(t)	#(T\|F\|t\|f)
`t_DECIMAL`(t)
`t_HASH`(t)	#
`t_HEXADECIMAL`(t)
`t_IDENTIFIER`(t)
`t_INTEGER`(t)
`t_L_PAREN`(t)	(
`t_R_PAREN`(t)	)
`t_anything`(t)
`t_error`(t)
`t_newline`(t)	n+
`t_quote`(t)	"
`t_quote_440`(t)	\[nt\'"]
`t_quote_443`(t)	[^\""]+
`t_quote_446`(t)	"
`t_quote_456`(t)
`t_quote_error`(t)
`t_whitespace`(t)	[ tr]+

lexer_rules_object: Lexer rules object of Scheme parser.

p_boolean__BOOLEAN(p)[source]: boolean : BOOLEAN

p_constant__boolean(p)[source]: constant : boolean

p_constant__number(p)[source]: constant : number

p_constant__string(p)[source]: constant : string

p_data__EMPTY(p)[source]: data :

p_data__data__datum(p)[source]: data : data datum

p_datum__constant(p)[source]: datum : constant

p_datum__list(p)[source]: datum : list

p_datum__symbol(p)[source]: datum : symbol

p_datum__vector(p)[source]: datum : vector

p_error(p)[source]

p_expression__QUOTE__datum(p)[source]: expression : QUOTE datum

p_expression__constant(p)[source]: expression : constant

p_expression__variable(p)[source]: expression : variable

p_form__expression(p)[source]: form : expression

p_forms__EMPTY(p)[source]: forms :

p_forms__forms__form(p)[source]: forms : forms form

p_list__L_PAREN__data__R_PAREN(p)[source]: list : L_PAREN data R_PAREN

p_list__L_PAREN__data__datum__PERIOD__datum__R_PAREN(p)[source]: list : L_PAREN data datum PERIOD datum R_PAREN

p_number__DECIMAL(p)[source]: number : DECIMAL

p_number__HEXADECIMAL(p)[source]: number : HEXADECIMAL

p_number__INTEGER(p)[source]: number : INTEGER

p_program__forms(p)[source]: program : forms

p_string__STRING(p)[source]: string : STRING

p_symbol__IDENTIFIER(p)[source]: symbol : IDENTIFIER

p_variable__IDENTIFIER(p)[source]: variable : IDENTIFIER

p_vector__HASH__L_PAREN__data__R_PAREN(p)[source]: vector : HASH L_PAREN data R_PAREN

parser_rules_object: Parser rules object of Scheme parser.

t_BOOLEAN(t)[source]: #(T|F|t|f)

t_DECIMAL(t)[source]

t_HASH(t)[source]: #

t_HEXADECIMAL(t)[source]

t_IDENTIFIER(t)[source]

t_INTEGER(t)[source]

t_L_PAREN(t)[source]: (

t_R_PAREN(t)[source]: )

t_anything(t)[source]: .

t_error(t)[source]

t_newline(t)[source]: n+

t_quote(t)[source]: "

t_quote_440(t)[source]: \[nt\’”]

t_quote_443(t)[source]: [^\””]+

t_quote_446(t)[source]: "

t_quote_456(t)[source]: .

t_quote_error(t)

t_whitespace(t)[source]: [ tr]+