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# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of logilab-common.
#
# logilab-common is free software: you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option) any
# later version.
#
# logilab-common is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with logilab-common. If not, see <http://www.gnu.org/licenses/>.
"""Text formatting drivers for ureports"""
__docformat__ = "restructuredtext en"
from logilab.common.textutils import linesep
from logilab.common.ureports import BaseWriter
TITLE_UNDERLINES = ['', '=', '-', '`', '.', '~', '^']
BULLETS = ['*', '-']
class TextWriter(BaseWriter):
"""format layouts as text
(ReStructured inspiration but not totally handled yet)
"""
def begin_format(self, layout):
super(TextWriter, self).begin_format(layout)
self.list_level = 0
self.pending_urls = []
def visit_section(self, layout):
"""display a section as text
"""
self.section += 1
self.writeln()
self.format_children(layout)
if self.pending_urls:
self.writeln()
for label, url in self.pending_urls:
self.writeln('.. _`%s`: %s' % (label, url))
self.pending_urls = []
self.section -= 1
self.writeln()
def visit_title(self, layout):
title = ''.join(list(self.compute_content(layout)))
self.writeln(title)
try:
self.writeln(TITLE_UNDERLINES[self.section] * len(title))
except IndexError:
print "FIXME TITLE TOO DEEP. TURNING TITLE INTO TEXT"
def visit_paragraph(self, layout):
"""enter a paragraph"""
self.format_children(layout)
self.writeln()
def visit_span(self, layout):
"""enter a span"""
self.format_children(layout)
def visit_table(self, layout):
"""display a table as text"""
table_content = self.get_table_content(layout)
# get columns width
cols_width = [0]*len(table_content[0])
for row in table_content:
for index in range(len(row)):
col = row[index]
cols_width[index] = max(cols_width[index], len(col))
if layout.klass == 'field':
self.field_table(layout, table_content, cols_width)
else:
self.default_table(layout, table_content, cols_width)
self.writeln()
def default_table(self, layout, table_content, cols_width):
"""format a table"""
cols_width = [size+1 for size in cols_width]
format_strings = ' '.join(['%%-%ss'] * len(cols_width))
format_strings = format_strings % tuple(cols_width)
format_strings = format_strings.split(' ')
table_linesep = '\n+' + '+'.join(['-'*w for w in cols_width]) + '+\n'
headsep = '\n+' + '+'.join(['='*w for w in cols_width]) + '+\n'
# FIXME: layout.cheaders
self.write(table_linesep)
for i in range(len(table_content)):
self.write('|')
line = table_content[i]
for j in range(len(line)):
self.write(format_strings[j] % line[j])
self.write('|')
if i == 0 and layout.rheaders:
self.write(headsep)
else:
self.write(table_linesep)
def field_table(self, layout, table_content, cols_width):
"""special case for field table"""
assert layout.cols == 2
format_string = '%s%%-%ss: %%s' % (linesep, cols_width[0])
for field, value in table_content:
self.write(format_string % (field, value))
def visit_list(self, layout):
"""display a list layout as text"""
bullet = BULLETS[self.list_level % len(BULLETS)]
indent = ' ' * self.list_level
self.list_level += 1
for child in layout.children:
self.write('%s%s%s ' % (linesep, indent, bullet))
child.accept(self)
self.list_level -= 1
def visit_link(self, layout):
"""add a hyperlink"""
if layout.label != layout.url:
self.write('`%s`_' % layout.label)
self.pending_urls.append( (layout.label, layout.url) )
else:
self.write(layout.url)
def visit_verbatimtext(self, layout):
"""display a verbatim layout as text (so difficult ;)
"""
self.writeln('::\n')
for line in layout.data.splitlines():
self.writeln(' ' + line)
self.writeln()
def visit_text(self, layout):
"""add some text"""
self.write(layout.data)
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