"""
    pygments.lexers.bdd
    ~~~~~~~~~~~~~~~~~~~

    Lexer for BDD(Behavior-driven development).
    More information: https://en.wikipedia.org/wiki/Behavior-driven_development

    :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

from pygments.lexer import RegexLexer, include
from pygments.token import Comment, Keyword, Name, String, Number, Text, Punctuation, Whitespace

__all__ = ["BddLexer"]


class BddLexer(RegexLexer):
    """
    Lexer for BDD(Behavior-driven development), which highlights not only
    keywords, but also comments, punctuations, strings, numbers, and variables.

    .. versionadded:: 2.11
    """

    name = "Bdd"
    aliases = ["bdd"]
    filenames = ["*.feature"]
    mimetypes = ["text/x-bdd"]

    step_keywords = r"Given|When|Then|Add|And|Feature|Scenario Outline|" r"Scenario|Background|Examples|But"

    tokens = {
        "comments": [
            (r"^\s*#.*$", Comment),
        ],
        "miscellaneous": [
            (r"(<|>|\[|\]|=|\||:|\(|\)|\{|\}|,|\.|;|-|_|\$)", Punctuation),
            (r"((?<=\<)[^\\>]+(?=\>))", Name.Variable),
            (r'"([^\"]*)"', String),
            (r"^@\S+", Name.Label),
        ],
        "numbers": [
            (r"(\d+\.?\d*|\d*\.\d+)([eE][+-]?[0-9]+)?", Number),
        ],
        "root": [
            (r"\n|\s+", Whitespace),
            (step_keywords, Keyword),
            include("comments"),
            include("miscellaneous"),
            include("numbers"),
            (r"\S+", Text),
        ],
    }

    def analyse_text(self, text):
        return
