"""This module provide syntaxe highlight functions"""

from logilab.common.logging_ext import _colorable_terminal

try:

    from pygments import highlight as pygments_highlight

    from pygments.lexers import get_lexer_by_name

    from pygments.formatters.terminal import TerminalFormatter

    from pygments.formatters.html import HtmlFormatter

    has_pygments = True

except ImportError:

    has_pygments = False

def highlight_terminal(code, language):

    if not has_pygments:

        return code

    if not _colorable_terminal():

        return code

    return pygments_highlight(code, get_lexer_by_name(language), TerminalFormatter())

def highlight_html(code, language, linenos=False, linenostart=1, **kwargs):

    if not has_pygments:

        return str(code)

    return pygments_highlight(str(code),

                              get_lexer_by_name(language),

                              HtmlFormatter(wrapcode=True, linenos=linenos, linenostart=linenostart, **kwargs))

def generate_css():

    if has_pygments:

        return HtmlFormatter().get_style_defs()

    else:

        return ""