#!/usr/bin/env python3

# --------------------------------------------------------------------


# --------------------------------------------------------------------

try:
    from docutils.nodes import NodeVisitor

    NodeVisitor.unknown_visit = lambda self, node: None
    NodeVisitor.unknown_departure = lambda self, node: None
except ImportError:
    pass

try:  # epydoc 3.0.1 + docutils 0.6
    from docutils.nodes import Text
    from UserString import UserString

    if not isinstance(Text, UserString):

        def Text_get_data(s):
            try:
                return s._data
            except AttributeError:
                return s.astext()

        def Text_set_data(s, d):
            s.astext = lambda: d
            s._data = d

        Text.data = property(Text_get_data, Text_set_data)
except ImportError:
    pass

# --------------------------------------------------------------------

from epydoc.docwriter import dotgraph
from epydoc import docstringparser as dsp

import re
import sys
import os
import epydoc.cli

dotgraph._DOT_VERSION_RE = re.compile(r'dot (?:- Graphviz )version ([\d\.]+)')

try:
    dotgraph.DotGraph.DEFAULT_HTML_IMAGE_FORMAT = 'png'

except AttributeError:
    DotGraph_to_html = dotgraph.DotGraph.to_html
    DotGraph_run_dot = dotgraph.DotGraph._run_dot

    def to_html(self, image_file, image_url, center=True):
        if image_file[-4:] == '.gif':
            image_file = image_file[:-4] + '.png'
        if image_url[-4:] == '.gif':
            image_url = image_url[:-4] + '.png'
        return DotGraph_to_html(self, image_file, image_url)

    def _run_dot(self, *options):
        if '-Tgif' in options:
            opts = list(options)
            for i, o in enumerate(opts):
                if o == '-Tgif':
                    opts[i] = '-Tpng'
            options = type(options)(opts)
        return DotGraph_run_dot(self, *options)

    dotgraph.DotGraph.to_html = to_html
    dotgraph.DotGraph._run_dot = _run_dot

# --------------------------------------------------------------------


_SIGNATURE_RE = re.compile(
    # Class name (for builtin methods)
    r'^\s*((?P<class>\w+)\.)?'
    +
    # The function name
    r'(?P<func>\w+)'
    +
    # The parameters
    r'\(((?P<self>(?:self|cls|mcs)),?)?(?P<params>.*)\)'
    +
    # The return value (optional)
    r'(\s*(->)\s*(?P<return>\S.*?))?'
    +
    # The end marker
    r'\s*(\n|\s+(--|<=+>)\s+|$|\.\s+|\.\n)'
)


dsp._SIGNATURE_RE = _SIGNATURE_RE

# --------------------------------------------------------------------


def epydocify():
    dirname = os.path.dirname(__file__)
    config = os.path.join(dirname, 'epydoc.cfg')
    sys.argv.append('--config=' + config)
    epydoc.cli.cli()


if __name__ == '__main__':
    epydocify()

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