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"""
pygments.lexers.ada
~~~~~~~~~~~~~~~~~~~
Lexers for Ada family languages.
:copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import RegexLexer, include, bygroups, words, using, this, \
default
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation
from pygments.lexers._ada_builtins import KEYWORD_LIST, BUILTIN_LIST
__all__ = ['AdaLexer']
class AdaLexer(RegexLexer):
"""
For Ada source code.
.. versionadded:: 1.3
"""
name = 'Ada'
aliases = ['ada', 'ada95', 'ada2005']
filenames = ['*.adb', '*.ads', '*.ada']
mimetypes = ['text/x-ada']
flags = re.MULTILINE | re.IGNORECASE
tokens = {
'root': [
(r'[^\S\n]+', Text),
(r'--.*?\n', Comment.Single),
(r'[^\S\n]+', Text),
(r'function|procedure|entry', Keyword.Declaration, 'subprogram'),
(r'(subtype|type)(\s+)(\w+)',
bygroups(Keyword.Declaration, Text, Keyword.Type), 'type_def'),
(r'task|protected', Keyword.Declaration),
(r'(subtype)(\s+)', bygroups(Keyword.Declaration, Text)),
(r'(end)(\s+)', bygroups(Keyword.Reserved, Text), 'end'),
(r'(pragma)(\s+)(\w+)', bygroups(Keyword.Reserved, Text,
Comment.Preproc)),
(r'(true|false|null)\b', Keyword.Constant),
# builtin types
(words(BUILTIN_LIST, suffix=r'\b'), Keyword.Type),
(r'(and(\s+then)?|in|mod|not|or(\s+else)|rem)\b', Operator.Word),
(r'generic|private', Keyword.Declaration),
(r'package', Keyword.Declaration, 'package'),
(r'array\b', Keyword.Reserved, 'array_def'),
(r'(with|use)(\s+)', bygroups(Keyword.Namespace, Text), 'import'),
(r'(\w+)(\s*)(:)(\s*)(constant)',
bygroups(Name.Constant, Text, Punctuation, Text,
Keyword.Reserved)),
(r'<<\w+>>', Name.Label),
(r'(\w+)(\s*)(:)(\s*)(declare|begin|loop|for|while)',
bygroups(Name.Label, Text, Punctuation, Text, Keyword.Reserved)),
# keywords
(words(KEYWORD_LIST, prefix=r'\b', suffix=r'\b'),
Keyword.Reserved),
(r'"[^"]*"', String),
include('attribute'),
include('numbers'),
(r"'[^']'", String.Character),
(r'(\w+)(\s*|[(,])', bygroups(Name, using(this))),
(r"(<>|=>|:=|@|[\[\]]|[()|:;,.'])", Punctuation),
(r'[*<>+=/&-]', Operator),
(r'\n+', Text),
],
'numbers': [
(r'[0-9_]+#[0-9a-f_\.]+#', Number.Hex),
(r'[0-9_]+\.[0-9_]*', Number.Float),
(r'[0-9_]+', Number.Integer),
],
'attribute': [
(r"(')(\w+)", bygroups(Punctuation, Name.Attribute)),
],
'subprogram': [
(r'\(', Punctuation, ('#pop', 'formal_part')),
(r';', Punctuation, '#pop'),
(r'is\b', Keyword.Reserved, '#pop'),
(r'"[^"]+"|\w+', Name.Function),
include('root'),
],
'end': [
('(if|case|record|loop|select)', Keyword.Reserved),
(r'"[^"]+"|[\w.]+', Name.Function),
(r'\s+', Text),
(';', Punctuation, '#pop'),
],
'type_def': [
(r';', Punctuation, '#pop'),
(r'\(', Punctuation, 'formal_part'),
(r'\[', Punctuation, 'formal_part'),
(r'with|and|use', Keyword.Reserved),
(r'array\b', Keyword.Reserved, ('#pop', 'array_def')),
(r'record\b', Keyword.Reserved, ('record_def')),
(r'(null record)(;)', bygroups(Keyword.Reserved, Punctuation), '#pop'),
include('root'),
],
'array_def': [
(r';', Punctuation, '#pop'),
(r'(\w+)(\s+)(range)', bygroups(Keyword.Type, Text, Keyword.Reserved)),
include('root'),
],
'record_def': [
(r'end record', Keyword.Reserved, '#pop'),
include('root'),
],
'import': [
# TODO: use Name.Namespace if appropriate. This needs
# work to disinguish imports from aspects.
(r'[\w.]+', Name, '#pop'),
default('#pop'),
],
'formal_part': [
(r'\)', Punctuation, '#pop'),
(r'\]', Punctuation, '#pop'),
(r'\w+', Name.Variable),
(r',|:[^=]', Punctuation),
(r'(in|not|null|out|access)\b', Keyword.Reserved),
include('root'),
],
'package': [
('body', Keyword.Declaration),
(r'is\s+new|renames', Keyword.Reserved),
('is', Keyword.Reserved, '#pop'),
(';', Punctuation, '#pop'),
(r'\(', Punctuation, 'package_instantiation'),
(r'([\w.]+)', Name.Class),
include('root'),
],
'package_instantiation': [
(r'("[^"]+"|\w+)(\s+)(=>)', bygroups(Name.Variable, Text, Punctuation)),
(r'[\w.\'"]', Text),
(r'\)', Punctuation, '#pop'),
include('root'),
],
}
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