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-# -*- coding: utf-8 -*-
-"""
- pygments.lexers.ml
- ~~~~~~~~~~~~~~~~~~
-
- Lexers for ML family languages.
-
- :copyright: Copyright 2006-2019 by the Pygments team, see AUTHORS.
- :license: BSD, see LICENSE for details.
-"""
-
-import re
-
-from pygments.lexer import RegexLexer, include, bygroups, default, words
-from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
- Number, Punctuation, Error
-
-__all__ = ['SMLLexer', 'OcamlLexer', 'OpaLexer']
-
-
-class SMLLexer(RegexLexer):
- """
- For the Standard ML language.
-
- .. versionadded:: 1.5
- """
-
- name = 'Standard ML'
- aliases = ['sml']
- filenames = ['*.sml', '*.sig', '*.fun']
- mimetypes = ['text/x-standardml', 'application/x-standardml']
-
- alphanumid_reserved = set((
- # Core
- 'abstype', 'and', 'andalso', 'as', 'case', 'datatype', 'do', 'else',
- 'end', 'exception', 'fn', 'fun', 'handle', 'if', 'in', 'infix',
- 'infixr', 'let', 'local', 'nonfix', 'of', 'op', 'open', 'orelse',
- 'raise', 'rec', 'then', 'type', 'val', 'with', 'withtype', 'while',
- # Modules
- 'eqtype', 'functor', 'include', 'sharing', 'sig', 'signature',
- 'struct', 'structure', 'where',
- ))
-
- symbolicid_reserved = set((
- # Core
- ':', r'\|', '=', '=>', '->', '#',
- # Modules
- ':>',
- ))
-
- nonid_reserved = set(('(', ')', '[', ']', '{', '}', ',', ';', '...', '_'))
-
- alphanumid_re = r"[a-zA-Z][\w']*"
- symbolicid_re = r"[!%&$#+\-/:<=>?@\\~`^|*]+"
-
- # A character constant is a sequence of the form #s, where s is a string
- # constant denoting a string of size one character. This setup just parses
- # the entire string as either a String.Double or a String.Char (depending
- # on the argument), even if the String.Char is an erronous
- # multiple-character string.
- def stringy(whatkind):
- return [
- (r'[^"\\]', whatkind),
- (r'\\[\\"abtnvfr]', String.Escape),
- # Control-character notation is used for codes < 32,
- # where \^@ == \000
- (r'\\\^[\x40-\x5e]', String.Escape),
- # Docs say 'decimal digits'
- (r'\\[0-9]{3}', String.Escape),
- (r'\\u[0-9a-fA-F]{4}', String.Escape),
- (r'\\\s+\\', String.Interpol),
- (r'"', whatkind, '#pop'),
- ]
-
- # Callbacks for distinguishing tokens and reserved words
- def long_id_callback(self, match):
- if match.group(1) in self.alphanumid_reserved:
- token = Error
- else:
- token = Name.Namespace
- yield match.start(1), token, match.group(1)
- yield match.start(2), Punctuation, match.group(2)
-
- def end_id_callback(self, match):
- if match.group(1) in self.alphanumid_reserved:
- token = Error
- elif match.group(1) in self.symbolicid_reserved:
- token = Error
- else:
- token = Name
- yield match.start(1), token, match.group(1)
-
- def id_callback(self, match):
- str = match.group(1)
- if str in self.alphanumid_reserved:
- token = Keyword.Reserved
- elif str in self.symbolicid_reserved:
- token = Punctuation
- else:
- token = Name
- yield match.start(1), token, str
-
- tokens = {
- # Whitespace and comments are (almost) everywhere
- 'whitespace': [
- (r'\s+', Text),
- (r'\(\*', Comment.Multiline, 'comment'),
- ],
-
- 'delimiters': [
- # This lexer treats these delimiters specially:
- # Delimiters define scopes, and the scope is how the meaning of
- # the `|' is resolved - is it a case/handle expression, or function
- # definition by cases? (This is not how the Definition works, but
- # it's how MLton behaves, see http://mlton.org/SMLNJDeviations)
- (r'\(|\[|\{', Punctuation, 'main'),
- (r'\)|\]|\}', Punctuation, '#pop'),
- (r'\b(let|if|local)\b(?!\')', Keyword.Reserved, ('main', 'main')),
- (r'\b(struct|sig|while)\b(?!\')', Keyword.Reserved, 'main'),
- (r'\b(do|else|end|in|then)\b(?!\')', Keyword.Reserved, '#pop'),
- ],
-
- 'core': [
- # Punctuation that doesn't overlap symbolic identifiers
- (r'(%s)' % '|'.join(re.escape(z) for z in nonid_reserved),
- Punctuation),
-
- # Special constants: strings, floats, numbers in decimal and hex
- (r'#"', String.Char, 'char'),
- (r'"', String.Double, 'string'),
- (r'~?0x[0-9a-fA-F]+', Number.Hex),
- (r'0wx[0-9a-fA-F]+', Number.Hex),
- (r'0w\d+', Number.Integer),
- (r'~?\d+\.\d+[eE]~?\d+', Number.Float),
- (r'~?\d+\.\d+', Number.Float),
- (r'~?\d+[eE]~?\d+', Number.Float),
- (r'~?\d+', Number.Integer),
-
- # Labels
- (r'#\s*[1-9][0-9]*', Name.Label),
- (r'#\s*(%s)' % alphanumid_re, Name.Label),
- (r'#\s+(%s)' % symbolicid_re, Name.Label),
- # Some reserved words trigger a special, local lexer state change
- (r'\b(datatype|abstype)\b(?!\')', Keyword.Reserved, 'dname'),
- (r'(?=\b(exception)\b(?!\'))', Text, ('ename')),
- (r'\b(functor|include|open|signature|structure)\b(?!\')',
- Keyword.Reserved, 'sname'),
- (r'\b(type|eqtype)\b(?!\')', Keyword.Reserved, 'tname'),
-
- # Regular identifiers, long and otherwise
- (r'\'[\w\']*', Name.Decorator),
- (r'(%s)(\.)' % alphanumid_re, long_id_callback, "dotted"),
- (r'(%s)' % alphanumid_re, id_callback),
- (r'(%s)' % symbolicid_re, id_callback),
- ],
- 'dotted': [
- (r'(%s)(\.)' % alphanumid_re, long_id_callback),
- (r'(%s)' % alphanumid_re, end_id_callback, "#pop"),
- (r'(%s)' % symbolicid_re, end_id_callback, "#pop"),
- (r'\s+', Error),
- (r'\S+', Error),
- ],
-
-
- # Main parser (prevents errors in files that have scoping errors)
- 'root': [
- default('main')
- ],
-
- # In this scope, I expect '|' to not be followed by a function name,
- # and I expect 'and' to be followed by a binding site
- 'main': [
- include('whitespace'),
-
- # Special behavior of val/and/fun
- (r'\b(val|and)\b(?!\')', Keyword.Reserved, 'vname'),
- (r'\b(fun)\b(?!\')', Keyword.Reserved,
- ('#pop', 'main-fun', 'fname')),
-
- include('delimiters'),
- include('core'),
- (r'\S+', Error),
- ],
-
- # In this scope, I expect '|' and 'and' to be followed by a function
- 'main-fun': [
- include('whitespace'),
-
- (r'\s', Text),
- (r'\(\*', Comment.Multiline, 'comment'),
-
- # Special behavior of val/and/fun
- (r'\b(fun|and)\b(?!\')', Keyword.Reserved, 'fname'),
- (r'\b(val)\b(?!\')', Keyword.Reserved,
- ('#pop', 'main', 'vname')),
-
- # Special behavior of '|' and '|'-manipulating keywords
- (r'\|', Punctuation, 'fname'),
- (r'\b(case|handle)\b(?!\')', Keyword.Reserved,
- ('#pop', 'main')),
-
- include('delimiters'),
- include('core'),
- (r'\S+', Error),
- ],
-
- # Character and string parsers
- 'char': stringy(String.Char),
- 'string': stringy(String.Double),
-
- 'breakout': [
- (r'(?=\b(%s)\b(?!\'))' % '|'.join(alphanumid_reserved), Text, '#pop'),
- ],
-
- # Dealing with what comes after module system keywords
- 'sname': [
- include('whitespace'),
- include('breakout'),
-
- (r'(%s)' % alphanumid_re, Name.Namespace),
- default('#pop'),
- ],
-
- # Dealing with what comes after the 'fun' (or 'and' or '|') keyword
- 'fname': [
- include('whitespace'),
- (r'\'[\w\']*', Name.Decorator),
- (r'\(', Punctuation, 'tyvarseq'),
-
- (r'(%s)' % alphanumid_re, Name.Function, '#pop'),
- (r'(%s)' % symbolicid_re, Name.Function, '#pop'),
-
- # Ignore interesting function declarations like "fun (x + y) = ..."
- default('#pop'),
- ],
-
- # Dealing with what comes after the 'val' (or 'and') keyword
- 'vname': [
- include('whitespace'),
- (r'\'[\w\']*', Name.Decorator),
- (r'\(', Punctuation, 'tyvarseq'),
-
- (r'(%s)(\s*)(=(?!%s))' % (alphanumid_re, symbolicid_re),
- bygroups(Name.Variable, Text, Punctuation), '#pop'),
- (r'(%s)(\s*)(=(?!%s))' % (symbolicid_re, symbolicid_re),
- bygroups(Name.Variable, Text, Punctuation), '#pop'),
- (r'(%s)' % alphanumid_re, Name.Variable, '#pop'),
- (r'(%s)' % symbolicid_re, Name.Variable, '#pop'),
-
- # Ignore interesting patterns like 'val (x, y)'
- default('#pop'),
- ],
-
- # Dealing with what comes after the 'type' (or 'and') keyword
- 'tname': [
- include('whitespace'),
- include('breakout'),
-
- (r'\'[\w\']*', Name.Decorator),
- (r'\(', Punctuation, 'tyvarseq'),
- (r'=(?!%s)' % symbolicid_re, Punctuation, ('#pop', 'typbind')),
-
- (r'(%s)' % alphanumid_re, Keyword.Type),
- (r'(%s)' % symbolicid_re, Keyword.Type),
- (r'\S+', Error, '#pop'),
- ],
-
- # A type binding includes most identifiers
- 'typbind': [
- include('whitespace'),
-
- (r'\b(and)\b(?!\')', Keyword.Reserved, ('#pop', 'tname')),
-
- include('breakout'),
- include('core'),
- (r'\S+', Error, '#pop'),
- ],
-
- # Dealing with what comes after the 'datatype' (or 'and') keyword
- 'dname': [
- include('whitespace'),
- include('breakout'),
-
- (r'\'[\w\']*', Name.Decorator),
- (r'\(', Punctuation, 'tyvarseq'),
- (r'(=)(\s*)(datatype)',
- bygroups(Punctuation, Text, Keyword.Reserved), '#pop'),
- (r'=(?!%s)' % symbolicid_re, Punctuation,
- ('#pop', 'datbind', 'datcon')),
-
- (r'(%s)' % alphanumid_re, Keyword.Type),
- (r'(%s)' % symbolicid_re, Keyword.Type),
- (r'\S+', Error, '#pop'),
- ],
-
- # common case - A | B | C of int
- 'datbind': [
- include('whitespace'),
-
- (r'\b(and)\b(?!\')', Keyword.Reserved, ('#pop', 'dname')),
- (r'\b(withtype)\b(?!\')', Keyword.Reserved, ('#pop', 'tname')),
- (r'\b(of)\b(?!\')', Keyword.Reserved),
-
- (r'(\|)(\s*)(%s)' % alphanumid_re,
- bygroups(Punctuation, Text, Name.Class)),
- (r'(\|)(\s+)(%s)' % symbolicid_re,
- bygroups(Punctuation, Text, Name.Class)),
-
- include('breakout'),
- include('core'),
- (r'\S+', Error),
- ],
-
- # Dealing with what comes after an exception
- 'ename': [
- include('whitespace'),
-
- (r'(exception|and)\b(\s+)(%s)' % alphanumid_re,
- bygroups(Keyword.Reserved, Text, Name.Class)),
- (r'(exception|and)\b(\s*)(%s)' % symbolicid_re,
- bygroups(Keyword.Reserved, Text, Name.Class)),
- (r'\b(of)\b(?!\')', Keyword.Reserved),
-
- include('breakout'),
- include('core'),
- (r'\S+', Error),
- ],
-
- 'datcon': [
- include('whitespace'),
- (r'(%s)' % alphanumid_re, Name.Class, '#pop'),
- (r'(%s)' % symbolicid_re, Name.Class, '#pop'),
- (r'\S+', Error, '#pop'),
- ],
-
- # Series of type variables
- 'tyvarseq': [
- (r'\s', Text),
- (r'\(\*', Comment.Multiline, 'comment'),
-
- (r'\'[\w\']*', Name.Decorator),
- (alphanumid_re, Name),
- (r',', Punctuation),
- (r'\)', Punctuation, '#pop'),
- (symbolicid_re, Name),
- ],
-
- 'comment': [
- (r'[^(*)]', Comment.Multiline),
- (r'\(\*', Comment.Multiline, '#push'),
- (r'\*\)', Comment.Multiline, '#pop'),
- (r'[(*)]', Comment.Multiline),
- ],
- }
-
-
-class OcamlLexer(RegexLexer):
- """
- For the OCaml language.
-
- .. versionadded:: 0.7
- """
-
- name = 'OCaml'
- aliases = ['ocaml']
- filenames = ['*.ml', '*.mli', '*.mll', '*.mly']
- mimetypes = ['text/x-ocaml']
-
- keywords = (
- 'as', 'assert', 'begin', 'class', 'constraint', 'do', 'done',
- 'downto', 'else', 'end', 'exception', 'external', 'false',
- 'for', 'fun', 'function', 'functor', 'if', 'in', 'include',
- 'inherit', 'initializer', 'lazy', 'let', 'match', 'method',
- 'module', 'mutable', 'new', 'object', 'of', 'open', 'private',
- 'raise', 'rec', 'sig', 'struct', 'then', 'to', 'true', 'try',
- 'type', 'value', 'val', 'virtual', 'when', 'while', 'with',
- )
- keyopts = (
- '!=', '#', '&', '&&', r'\(', r'\)', r'\*', r'\+', ',', '-',
- r'-\.', '->', r'\.', r'\.\.', ':', '::', ':=', ':>', ';', ';;', '<',
- '<-', '=', '>', '>]', r'>\}', r'\?', r'\?\?', r'\[', r'\[<', r'\[>',
- r'\[\|', ']', '_', '`', r'\{', r'\{<', r'\|', r'\|]', r'\}', '~'
- )
-
- operators = r'[!$%&*+\./:<=>?@^|~-]'
- word_operators = ('and', 'asr', 'land', 'lor', 'lsl', 'lxor', 'mod', 'or')
- prefix_syms = r'[!?~]'
- infix_syms = r'[=<>@^|&+\*/$%-]'
- primitives = ('unit', 'int', 'float', 'bool', 'string', 'char', 'list', 'array')
-
- tokens = {
- 'escape-sequence': [
- (r'\\[\\"\'ntbr]', String.Escape),
- (r'\\[0-9]{3}', String.Escape),
- (r'\\x[0-9a-fA-F]{2}', String.Escape),
- ],
- 'root': [
- (r'\s+', Text),
- (r'false|true|\(\)|\[\]', Name.Builtin.Pseudo),
- (r'\b([A-Z][\w\']*)(?=\s*\.)', Name.Namespace, 'dotted'),
- (r'\b([A-Z][\w\']*)', Name.Class),
- (r'\(\*(?![)])', Comment, 'comment'),
- (r'\b(%s)\b' % '|'.join(keywords), Keyword),
- (r'(%s)' % '|'.join(keyopts[::-1]), Operator),
- (r'(%s|%s)?%s' % (infix_syms, prefix_syms, operators), Operator),
- (r'\b(%s)\b' % '|'.join(word_operators), Operator.Word),
- (r'\b(%s)\b' % '|'.join(primitives), Keyword.Type),
-
- (r"[^\W\d][\w']*", Name),
-
- (r'-?\d[\d_]*(.[\d_]*)?([eE][+\-]?\d[\d_]*)', Number.Float),
- (r'0[xX][\da-fA-F][\da-fA-F_]*', Number.Hex),
- (r'0[oO][0-7][0-7_]*', Number.Oct),
- (r'0[bB][01][01_]*', Number.Bin),
- (r'\d[\d_]*', Number.Integer),
-
- (r"'(?:(\\[\\\"'ntbr ])|(\\[0-9]{3})|(\\x[0-9a-fA-F]{2}))'",
- String.Char),
- (r"'.'", String.Char),
- (r"'", Keyword), # a stray quote is another syntax element
-
- (r'"', String.Double, 'string'),
-
- (r'[~?][a-z][\w\']*:', Name.Variable),
- ],
- 'comment': [
- (r'[^(*)]+', Comment),
- (r'\(\*', Comment, '#push'),
- (r'\*\)', Comment, '#pop'),
- (r'[(*)]', Comment),
- ],
- 'string': [
- (r'[^\\"]+', String.Double),
- include('escape-sequence'),
- (r'\\\n', String.Double),
- (r'"', String.Double, '#pop'),
- ],
- 'dotted': [
- (r'\s+', Text),
- (r'\.', Punctuation),
- (r'[A-Z][\w\']*(?=\s*\.)', Name.Namespace),
- (r'[A-Z][\w\']*', Name.Class, '#pop'),
- (r'[a-z_][\w\']*', Name, '#pop'),
- default('#pop'),
- ],
- }
-
-
-class OpaLexer(RegexLexer):
- """
- Lexer for the Opa language (http://opalang.org).
-
- .. versionadded:: 1.5
- """
-
- name = 'Opa'
- aliases = ['opa']
- filenames = ['*.opa']
- mimetypes = ['text/x-opa']
-
- # most of these aren't strictly keywords
- # but if you color only real keywords, you might just
- # as well not color anything
- keywords = (
- 'and', 'as', 'begin', 'case', 'client', 'css', 'database', 'db', 'do',
- 'else', 'end', 'external', 'forall', 'function', 'if', 'import',
- 'match', 'module', 'or', 'package', 'parser', 'rec', 'server', 'then',
- 'type', 'val', 'with', 'xml_parser',
- )
-
- # matches both stuff and `stuff`
- ident_re = r'(([a-zA-Z_]\w*)|(`[^`]*`))'
-
- op_re = r'[.=\-<>,@~%/+?*&^!]'
- punc_re = r'[()\[\],;|]' # '{' and '}' are treated elsewhere
- # because they are also used for inserts
-
- tokens = {
- # copied from the caml lexer, should be adapted
- 'escape-sequence': [
- (r'\\[\\"\'ntr}]', String.Escape),
- (r'\\[0-9]{3}', String.Escape),
- (r'\\x[0-9a-fA-F]{2}', String.Escape),
- ],
-
- # factorizing these rules, because they are inserted many times
- 'comments': [
- (r'/\*', Comment, 'nested-comment'),
- (r'//.*?$', Comment),
- ],
- 'comments-and-spaces': [
- include('comments'),
- (r'\s+', Text),
- ],
-
- 'root': [
- include('comments-and-spaces'),
- # keywords
- (words(keywords, prefix=r'\b', suffix=r'\b'), Keyword),
- # directives
- # we could parse the actual set of directives instead of anything
- # starting with @, but this is troublesome
- # because it needs to be adjusted all the time
- # and assuming we parse only sources that compile, it is useless
- (r'@' + ident_re + r'\b', Name.Builtin.Pseudo),
-
- # number literals
- (r'-?.[\d]+([eE][+\-]?\d+)', Number.Float),
- (r'-?\d+.\d*([eE][+\-]?\d+)', Number.Float),
- (r'-?\d+[eE][+\-]?\d+', Number.Float),
- (r'0[xX][\da-fA-F]+', Number.Hex),
- (r'0[oO][0-7]+', Number.Oct),
- (r'0[bB][01]+', Number.Bin),
- (r'\d+', Number.Integer),
- # color literals
- (r'#[\da-fA-F]{3,6}', Number.Integer),
-
- # string literals
- (r'"', String.Double, 'string'),
- # char literal, should be checked because this is the regexp from
- # the caml lexer
- (r"'(?:(\\[\\\"'ntbr ])|(\\[0-9]{3})|(\\x[0-9a-fA-F]{2})|.)'",
- String.Char),
-
- # this is meant to deal with embedded exprs in strings
- # every time we find a '}' we pop a state so that if we were
- # inside a string, we are back in the string state
- # as a consequence, we must also push a state every time we find a
- # '{' or else we will have errors when parsing {} for instance
- (r'\{', Operator, '#push'),
- (r'\}', Operator, '#pop'),
-
- # html literals
- # this is a much more strict that the actual parser,
- # since a<b would not be parsed as html
- # but then again, the parser is way too lax, and we can't hope
- # to have something as tolerant
- (r'<(?=[a-zA-Z>])', String.Single, 'html-open-tag'),
-
- # db path
- # matching the '[_]' in '/a[_]' because it is a part
- # of the syntax of the db path definition
- # unfortunately, i don't know how to match the ']' in
- # /a[1], so this is somewhat inconsistent
- (r'[@?!]?(/\w+)+(\[_\])?', Name.Variable),
- # putting the same color on <- as on db path, since
- # it can be used only to mean Db.write
- (r'<-(?!'+op_re+r')', Name.Variable),
-
- # 'modules'
- # although modules are not distinguished by their names as in caml
- # the standard library seems to follow the convention that modules
- # only area capitalized
- (r'\b([A-Z]\w*)(?=\.)', Name.Namespace),
-
- # operators
- # = has a special role because this is the only
- # way to syntactic distinguish binding constructions
- # unfortunately, this colors the equal in {x=2} too
- (r'=(?!'+op_re+r')', Keyword),
- (r'(%s)+' % op_re, Operator),
- (r'(%s)+' % punc_re, Operator),
-
- # coercions
- (r':', Operator, 'type'),
- # type variables
- # we need this rule because we don't parse specially type
- # definitions so in "type t('a) = ...", "'a" is parsed by 'root'
- ("'"+ident_re, Keyword.Type),
-
- # id literal, #something, or #{expr}
- (r'#'+ident_re, String.Single),
- (r'#(?=\{)', String.Single),
-
- # identifiers
- # this avoids to color '2' in 'a2' as an integer
- (ident_re, Text),
-
- # default, not sure if that is needed or not
- # (r'.', Text),
- ],
-
- # it is quite painful to have to parse types to know where they end
- # this is the general rule for a type
- # a type is either:
- # * -> ty
- # * type-with-slash
- # * type-with-slash -> ty
- # * type-with-slash (, type-with-slash)+ -> ty
- #
- # the code is pretty funky in here, but this code would roughly
- # translate in caml to:
- # let rec type stream =
- # match stream with
- # | [< "->"; stream >] -> type stream
- # | [< ""; stream >] ->
- # type_with_slash stream
- # type_lhs_1 stream;
- # and type_1 stream = ...
- 'type': [
- include('comments-and-spaces'),
- (r'->', Keyword.Type),
- default(('#pop', 'type-lhs-1', 'type-with-slash')),
- ],
-
- # parses all the atomic or closed constructions in the syntax of type
- # expressions: record types, tuple types, type constructors, basic type
- # and type variables
- 'type-1': [
- include('comments-and-spaces'),
- (r'\(', Keyword.Type, ('#pop', 'type-tuple')),
- (r'~?\{', Keyword.Type, ('#pop', 'type-record')),
- (ident_re+r'\(', Keyword.Type, ('#pop', 'type-tuple')),
- (ident_re, Keyword.Type, '#pop'),
- ("'"+ident_re, Keyword.Type),
- # this case is not in the syntax but sometimes
- # we think we are parsing types when in fact we are parsing
- # some css, so we just pop the states until we get back into
- # the root state
- default('#pop'),
- ],
-
- # type-with-slash is either:
- # * type-1
- # * type-1 (/ type-1)+
- 'type-with-slash': [
- include('comments-and-spaces'),
- default(('#pop', 'slash-type-1', 'type-1')),
- ],
- 'slash-type-1': [
- include('comments-and-spaces'),
- ('/', Keyword.Type, ('#pop', 'type-1')),
- # same remark as above
- default('#pop'),
- ],
-
- # we go in this state after having parsed a type-with-slash
- # while trying to parse a type
- # and at this point we must determine if we are parsing an arrow
- # type (in which case we must continue parsing) or not (in which
- # case we stop)
- 'type-lhs-1': [
- include('comments-and-spaces'),
- (r'->', Keyword.Type, ('#pop', 'type')),
- (r'(?=,)', Keyword.Type, ('#pop', 'type-arrow')),
- default('#pop'),
- ],
- 'type-arrow': [
- include('comments-and-spaces'),
- # the look ahead here allows to parse f(x : int, y : float -> truc)
- # correctly
- (r',(?=[^:]*?->)', Keyword.Type, 'type-with-slash'),
- (r'->', Keyword.Type, ('#pop', 'type')),
- # same remark as above
- default('#pop'),
- ],
-
- # no need to do precise parsing for tuples and records
- # because they are closed constructions, so we can simply
- # find the closing delimiter
- # note that this function would be not work if the source
- # contained identifiers like `{)` (although it could be patched
- # to support it)
- 'type-tuple': [
- include('comments-and-spaces'),
- (r'[^()/*]+', Keyword.Type),
- (r'[/*]', Keyword.Type),
- (r'\(', Keyword.Type, '#push'),
- (r'\)', Keyword.Type, '#pop'),
- ],
- 'type-record': [
- include('comments-and-spaces'),
- (r'[^{}/*]+', Keyword.Type),
- (r'[/*]', Keyword.Type),
- (r'\{', Keyword.Type, '#push'),
- (r'\}', Keyword.Type, '#pop'),
- ],
-
- # 'type-tuple': [
- # include('comments-and-spaces'),
- # (r'\)', Keyword.Type, '#pop'),
- # default(('#pop', 'type-tuple-1', 'type-1')),
- # ],
- # 'type-tuple-1': [
- # include('comments-and-spaces'),
- # (r',?\s*\)', Keyword.Type, '#pop'), # ,) is a valid end of tuple, in (1,)
- # (r',', Keyword.Type, 'type-1'),
- # ],
- # 'type-record':[
- # include('comments-and-spaces'),
- # (r'\}', Keyword.Type, '#pop'),
- # (r'~?(?:\w+|`[^`]*`)', Keyword.Type, 'type-record-field-expr'),
- # ],
- # 'type-record-field-expr': [
- #
- # ],
-
- 'nested-comment': [
- (r'[^/*]+', Comment),
- (r'/\*', Comment, '#push'),
- (r'\*/', Comment, '#pop'),
- (r'[/*]', Comment),
- ],
-
- # the copy pasting between string and single-string
- # is kinda sad. Is there a way to avoid that??
- 'string': [
- (r'[^\\"{]+', String.Double),
- (r'"', String.Double, '#pop'),
- (r'\{', Operator, 'root'),
- include('escape-sequence'),
- ],
- 'single-string': [
- (r'[^\\\'{]+', String.Double),
- (r'\'', String.Double, '#pop'),
- (r'\{', Operator, 'root'),
- include('escape-sequence'),
- ],
-
- # all the html stuff
- # can't really reuse some existing html parser
- # because we must be able to parse embedded expressions
-
- # we are in this state after someone parsed the '<' that
- # started the html literal
- 'html-open-tag': [
- (r'[\w\-:]+', String.Single, ('#pop', 'html-attr')),
- (r'>', String.Single, ('#pop', 'html-content')),
- ],
-
- # we are in this state after someone parsed the '</' that
- # started the end of the closing tag
- 'html-end-tag': [
- # this is a star, because </> is allowed
- (r'[\w\-:]*>', String.Single, '#pop'),
- ],
-
- # we are in this state after having parsed '<ident(:ident)?'
- # we thus parse a possibly empty list of attributes
- 'html-attr': [
- (r'\s+', Text),
- (r'[\w\-:]+=', String.Single, 'html-attr-value'),
- (r'/>', String.Single, '#pop'),
- (r'>', String.Single, ('#pop', 'html-content')),
- ],
-
- 'html-attr-value': [
- (r"'", String.Single, ('#pop', 'single-string')),
- (r'"', String.Single, ('#pop', 'string')),
- (r'#'+ident_re, String.Single, '#pop'),
- (r'#(?=\{)', String.Single, ('#pop', 'root')),
- (r'[^"\'{`=<>]+', String.Single, '#pop'),
- (r'\{', Operator, ('#pop', 'root')), # this is a tail call!
- ],
-
- # we should probably deal with '\' escapes here
- 'html-content': [
- (r'<!--', Comment, 'html-comment'),
- (r'</', String.Single, ('#pop', 'html-end-tag')),
- (r'<', String.Single, 'html-open-tag'),
- (r'\{', Operator, 'root'),
- (r'[^<{]+', String.Single),
- ],
-
- 'html-comment': [
- (r'-->', Comment, '#pop'),
- (r'[^\-]+|-', Comment),
- ],
- }