# The contents of this file are subject to the Mozilla Public License
# (MPL) Version 1.1 (the "License"); you may not use this file except
# in compliance with the License. You may obtain a copy of the License
# at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
# the License for the specific language governing rights and
# limitations under the License.
#
# The Original Code is LEPL (http://www.acooke.org/lepl)
# The Initial Developer of the Original Code is Andrew Cooke.
# Portions created by the Initial Developer are Copyright (C) 2009-2010
# Andrew Cooke (andrew@acooke.org). All Rights Reserved.
#
# Alternatively, the contents of this file may be used under the terms
# of the LGPL license (the GNU Lesser General Public License,
# http://www.gnu.org/licenses/lgpl.html), in which case the provisions
# of the LGPL License are applicable instead of those above.
#
# If you wish to allow use of your version of this file only under the
# terms of the LGPL License and not to allow others to use your version
# of this file under the MPL, indicate your decision by deleting the
# provisions above and replace them with the notice and other provisions
# required by the LGPL License.  If you do not delete the provisions
# above, a recipient may use your version of this file under either the
# MPL or the LGPL License.

'''
Show how line aware parsing can be used.
'''

#@PydevCodeAnalysisIgnore


from logging import basicConfig, DEBUG

from lepl import *
from lepl._example.support import Example


class LineAwareExamples(Example):
    
    def test_single_line(self):
        #basicConfig(level=DEBUG)
        start = LineStart()
        words = Token(Word())[:]
        end = LineEnd()
        line = start & words & end
        line.config.lines().no_full_first_match()
        self.examples([
(lambda: line.parse('  abc def'), "['abc', 'def']"),
(lambda: line.parse('  abc def\n pqr'), "['abc', 'def']")
])

    def test_multiple_lines(self):
        #basicConfig(level=DEBUG)
        start = LineStart()
        words = Token(Word())[:] > list
        end = LineEnd()
        line = start & words & end
        lines = line[:]
        lines.config.lines().no_full_first_match()
        self.examples([
(lambda: lines.parse('  abc def'), "[['abc', 'def']]"),
(lambda: lines.parse('  abc def\n pqr'), "[['abc', 'def'], ['pqr']]")
])

#    def test_indent_token(self):
#        #basicConfig(level=DEBUG)
#        words = Token(Word(Lower()))[:] > list
#        line = Indent() & words & LineAwareEol()
#        line.config.default_line_aware(tabsize=4)
#        parser = line.get_parse_string()
#        self.examples([(lambda: parser('\tabc def'), 
#                        "['    ', ['abc', 'def'], '']")])

    def test_line_token(self):
        #basicConfig(level=DEBUG)
        words = Token(Word(Lower()))[:] > list
        line = Line(words)
        line.config.lines()
        parser = line.get_parse_string()
        self.examples([(lambda: parser('\tabc def'), 
                        "[['abc', 'def']]")])
    
    def test_continued(self):
        #basicConfig(level=DEBUG)
        words = Token(Word(Lower()))[:] > list
        CLine = ContinuedLineFactory(r'\+')
        line = CLine(words)
        line.config.lines()
        parser = line.get_parse_string()
        self.examples([(lambda: parser('''abc def +
ghi'''), 
                        "[['abc', 'def', 'ghi']]")])