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# -*- coding: utf-8 -*-
import re
from pygments.lexer import RegexLexer, words
from pygments.token import *
__all__ = ['BoaLexer']
line_re = re.compile('.*?\n')
class BoaLexer(RegexLexer):
"""
http://boa.cs.iastate.edu/docs/
"""
name = 'Boa'
aliases = ['boa']
filenames = ['*.boa']
reserved = words(
('input', 'output', 'of', 'weight', 'before', 'after', 'stop', 'ifall', 'foreach', 'exists', 'function',
'break', 'switch', 'case', 'visitor', 'default', 'return', 'visit', 'while', 'if', 'else'),
suffix=r'\b', prefix=r'\b')
keywords = words(
('bottom', 'collection', 'maximum', 'mean', 'minimum', 'set', 'sum', 'top', 'string', 'int', 'bool', 'float',
'time', 'false', 'true', 'array', 'map', 'stack', 'enum', 'type'), suffix=r'\b', prefix=r'\b')
classes = words(
('Project', 'ForgeKind', 'CodeRepository', 'Revision', 'RepositoryKind', 'ChangedFile', 'FileKind', 'ASTRoot',
'Namespace', 'Declaration', 'Type', 'Method', 'Variable', 'Statement', 'Expression', 'Modifier',
'StatementKind', 'ExpressionKind', 'ModifierKind', 'Visibility', 'TypeKind', 'Person', 'ChangeKind'),
suffix=r'\b', prefix=r'\b')
operators = ('->', ':=', ':', '=', '<<', '!', '++', '||', '&&', '+', '-', '*', ">", "<")
string_sep = ('`', '\"')
built_in_functions = words(
(
# Array functions
'new', 'sort',
# Date & Time functions
'yearof', 'dayofyear', 'hourof', 'minuteof', 'secondof', 'now', 'addday', 'addmonth', 'addweek', 'addyear',
'dayofmonth', 'dayofweek', 'dayofyear', 'formattime', 'trunctoday', 'trunctohour', 'trunctominute',
'trunctomonth', 'trunctosecond', 'trunctoyear',
# Map functions
'clear', 'haskey', 'keys', 'lookup', 'remove', 'values',
# Math functions
'abs', 'acos', 'acosh', 'asin', 'asinh', 'atan', 'atan2', 'atanh', 'ceil', 'cos', 'cosh', 'exp', 'floor',
'highbit', 'isfinite', 'isinf', 'isnan', 'isnormal', 'log', 'log10', 'max', 'min', 'nrand', 'pow', 'rand',
'round', 'sin', 'sinh', 'sqrt', 'tan', 'tanh', 'trunc',
# Other functions
'def', 'hash', 'len',
# Set functions
'add', 'contains', 'remove',
# String functions
'format', 'lowercase', 'match', 'matchposns', 'matchstrs', 'regex', 'split', 'splitall', 'splitn',
'strfind', 'strreplace', 'strrfind', 'substring', 'trim', 'uppercase',
# Type Conversion functions
'bool', 'float', 'int', 'string', 'time',
# Domain-Specific functions
'getast', 'getsnapshot', 'hasfiletype', 'isfixingrevision', 'iskind', 'isliteral',
),
prefix=r'\b',
suffix=r'\(')
tokens = {
'root': [
(r'#.*?$', Comment.Single),
(r'/\*.*?\*/', Comment.Multiline),
(reserved, Keyword.Reserved),
(built_in_functions, Name.Function),
(keywords, Keyword.Type),
(classes, Name.Classes),
(words(operators), Operator),
(r'[][(),;{}\\.]', Punctuation),
(r'"(\\\\|\\"|[^"])*"', String),
(r'`(\\\\|\\`|[^`])*`', String),
(words(string_sep), String.Delimeter),
(r'[a-zA-Z_]+', Name.Variable),
(r'[0-9]+', Number.Integer),
(r'\s+?', Text), # Whitespace
]
}
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