def diff_blocks(fromlines,
tolines,
context=None,
tabwidth=8,
ignore_blank_lines=0,
ignore_case=0,
ignore_space_changes=0):
"""Return an array that is adequate for adding to the data dictionary
See `get_filtered_hunks` for the parameter descriptions.
See also the diff_div.html template.
"""
type_map = {
'replace': 'mod',
'delete': 'rem',
'insert': 'add',
'equal': 'unmod'
}
space_re = re.compile(' ( +)|^ ')
def htmlify(match):
div, mod = divmod(len(match.group(0)), 2)
return div * ' ' + mod * ' '
def markup_intraline_changes(opcodes):
for tag, i1, i2, j1, j2 in opcodes:
if tag == 'replace' and i2 - i1 == j2 - j1:
for i in range(i2 - i1):
fromline, toline = fromlines[i1 + i], tolines[j1 + i]
(start, end) = get_change_extent(fromline, toline)
if start != 0 or end != 0:
last = end + len(fromline)
fromlines[i1 + i] = (fromline[:start] + '\0' +
fromline[start:last] + '\1' +
fromline[last:])
last = end + len(toline)
tolines[j1 + i] = (toline[:start] + '\0' +
toline[start:last] + '\1' +
toline[last:])
yield tag, i1, i2, j1, j2
changes = []
for group in get_filtered_hunks(fromlines, tolines, context,
ignore_blank_lines, ignore_case,
ignore_space_changes):
blocks = []
last_tag = None
for tag, i1, i2, j1, j2 in markup_intraline_changes(group):
if tag != last_tag:
blocks.append({
'type': type_map[tag],
'base': {
'offset': i1,
'lines': []
},
'changed': {
'offset': j1,
'lines': []
}
})
if tag == 'equal':
for line in fromlines[i1:i2]:
line = line.expandtabs(tabwidth)
line = space_re.sub(htmlify, escape(line, quotes=False))
blocks[-1]['base']['lines'].append(Markup(unicode(line)))
for line in tolines[j1:j2]:
line = line.expandtabs(tabwidth)
line = space_re.sub(htmlify, escape(line, quotes=False))
blocks[-1]['changed']['lines'].append(Markup(
unicode(line)))
else:
if tag in ('replace', 'delete'):
for line in fromlines[i1:i2]:
line = expandtabs(line, tabwidth, '\0\1')
line = escape(line, quotes=False)
line = '<del>'.join([
space_re.sub(htmlify, seg)
for seg in line.split('\0')
])
line = line.replace('\1', '</del>')
blocks[-1]['base']['lines'].append(
Markup(unicode(line)))
if tag in ('replace', 'insert'):
for line in tolines[j1:j2]:
line = expandtabs(line, tabwidth, '\0\1')
line = escape(line, quotes=False)
line = '<ins>'.join([
space_re.sub(htmlify, seg)
for seg in line.split('\0')
])
line = line.replace('\1', '</ins>')
blocks[-1]['changed']['lines'].append(
Markup(unicode(line)))
changes.append(blocks)
return changes
def _diff_to_hdf(self, difflines, tabwidth):
"""
Translate a diff file into something suitable for inclusion in HDF.
The result is [(filename, revname_old, revname_new, changes)],
where changes has the same format as the result of
`trac.versioncontrol.diff.hdf_diff`.
If the diff cannot be parsed, this method returns None.
"""
def _markup_intraline_change(fromlines, tolines):
from trac.versioncontrol.diff import get_change_extent
for i in xrange(len(fromlines)):
fr, to = fromlines[i], tolines[i]
(start, end) = get_change_extent(fr, to)
if start != 0 or end != 0:
last = end + len(fr)
fromlines[i] = fr[:start] + '\0' + fr[start:last] + \
'\1' + fr[last:]
last = end + len(to)
tolines[i] = to[:start] + '\0' + to[start:last] + \
'\1' + to[last:]
space_re = re.compile(' ( +)|^ ')
def htmlify(match):
div, mod = divmod(len(match.group(0)), 2)
return Markup(div * ' ' + mod * ' ')
comments = []
changes = []
lines = iter(difflines)
try:
line = next(lines)
while True:
oldpath = oldrev = newpath = newrev = ''
oldinfo = newinfo = []
binary = False
# consume preamble, storing free lines in comments
# (also detect the special case of git binary patches)
if not line.startswith('--- '):
if not line.startswith('Index: ') and line != '=' * 67:
comments.append(line)
if line == "GIT binary patch":
binary = True
diffcmd_line = comments[0] # diff --git a/... b/,,,
oldpath, newpath = diffcmd_line.split()[-2:]
if any(c.startswith('new file') for c in comments):
oldpath = '/dev/null'
if any(c.startswith('deleted file') for c in comments):
newpath = '/dev/null'
oldinfo = ['', oldpath]
newinfo = ['', newpath]
index = [c for c in comments if c.startswith('index ')]
if index: # index 8f****78..1e****5c
oldrev, newrev = index[0].split()[-1].split('..')
oldinfo.append(oldrev)
newinfo.append(newrev)
line = next(lines)
while line:
comments.append(line)
line = next(lines)
else:
line = next(lines)
continue
if not oldinfo and not newinfo:
# Base filename/version from '--- <file> [rev]'
oldinfo = line.split(None, 2)
if len(oldinfo) > 1:
oldpath = oldinfo[1]
if len(oldinfo) > 2:
oldrev = oldinfo[2]
# Changed filename/version from '+++ <file> [rev]'
line = next(lines)
if not line.startswith('+++ '):
self.log.debug('expected +++ after ---, got %s', line)
return None
newinfo = line.split(None, 2)
if len(newinfo) > 1:
newpath = newinfo[1]
if len(newinfo) > 2:
newrev = newinfo[2]
shortrev = ('old', 'new')
if oldpath or newpath:
sep = re.compile(r'([/.~\\])')
commonprefix = ''.join(
os.path.commonprefix(
[sep.split(newpath),
sep.split(oldpath)]))
commonsuffix = ''.join(
os.path.commonprefix([
sep.split(newpath)[::-1],
sep.split(oldpath)[::-1]
])[::-1])
if len(commonprefix) > len(commonsuffix):
common = commonprefix
elif commonsuffix:
common = commonsuffix.lstrip('/')
a = oldpath[:-len(commonsuffix)]
b = newpath[:-len(commonsuffix)]
if len(a) < 4 and len(b) < 4:
shortrev = (a, b)
elif oldpath == '/dev/null':
common = _("new file %(new)s",
new=newpath.lstrip('b/'))
shortrev = ('-', '+')
elif newpath == '/dev/null':
common = _("deleted file %(deleted)s",
deleted=oldpath.lstrip('a/'))
shortrev = ('+', '-')
else:
common = '(a) %s vs. (b) %s' % (oldpath, newpath)
shortrev = ('a', 'b')
else:
common = ''
groups = []
groups_title = []
changes.append({
'change': 'edit',
'props': [],
'comments': '\n'.join(comments),
'binary': binary,
'diffs': groups,
'diffs_title': groups_title,
'old': {
'path': common,
'rev': ' '.join(oldinfo[1:]),
'shortrev': shortrev[0]
},
'new': {
'path': common,
'rev': ' '.join(newinfo[1:]),
'shortrev': shortrev[1]
}
})
comments = []
line = next(lines)
while line:
# "@@ -333,10 +329,8 @@" or "@@ -1 +1 @@ [... title ...]"
r = re.match(
r'@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@'
'(.*)', line)
if not r:
break
blocks = []
groups.append(blocks)
fromline, fromend, toline, toend = \
[int(x or 1) for x in r.groups()[:4]]
groups_title.append(r.group(5))
last_type = extra = None
fromend += fromline
toend += toline
line = next(lines)
while fromline < fromend or toline < toend or extra:
# First character is the command
command = ' '
if line:
command, line = line[0], line[1:]
# Make a new block?
if (command == ' ') != last_type:
last_type = command == ' '
kind = 'unmod' if last_type else 'mod'
block = {
'type': kind,
'base': {
'offset': fromline - 1,
'lines': []
},
'changed': {
'offset': toline - 1,
'lines': []
}
}
blocks.append(block)
else:
block = blocks[-1]
if command == ' ':
sides = ['base', 'changed']
elif command == '+':
last_side = 'changed'
sides = [last_side]
elif command == '-':
last_side = 'base'
sides = [last_side]
elif command == '\\' and last_side:
meta = block[last_side].setdefault('meta', {})
meta[len(block[last_side]['lines'])] = True
sides = [last_side]
elif command == '@': # ill-formed patch
groups_title[-1] = "%s (%s)" % (
groups_title[-1],
_("this hunk was shorter than expected"))
line = '@' + line
break
else:
self.log.debug('expected +, - or \\, got %s',
command)
return None
for side in sides:
if side == 'base':
fromline += 1
else:
toline += 1
block[side]['lines'].append(line)
line = next(lines)
extra = line and line[0] == '\\'
except StopIteration:
pass
# Go through all groups/blocks and mark up intraline changes, and
# convert to html
for o in changes:
for group in o['diffs']:
for b in group:
base, changed = b['base'], b['changed']
f, t = base['lines'], changed['lines']
if b['type'] == 'mod':
if len(f) == 0:
b['type'] = 'add'
elif len(t) == 0:
b['type'] = 'rem'
elif len(f) == len(t):
_markup_intraline_change(f, t)
for i in xrange(len(f)):
line = expandtabs(f[i], tabwidth, '\0\1')
line = escape(line, quotes=False)
line = '<del>'.join(
space_re.sub(htmlify, seg)
for seg in line.split('\0'))
line = line.replace('\1', '</del>')
f[i] = Markup(line)
if 'meta' in base and i in base['meta']:
f[i] = Markup('<em>%s</em>') % f[i]
for i in xrange(len(t)):
line = expandtabs(t[i], tabwidth, '\0\1')
line = escape(line, quotes=False)
line = '<ins>'.join(
space_re.sub(htmlify, seg)
for seg in line.split('\0'))
line = line.replace('\1', '</ins>')
t[i] = Markup(line)
if 'meta' in changed and i in changed['meta']:
t[i] = Markup('<em>%s</em>') % t[i]
return changes
def _diff_to_hdf(self, difflines, tabwidth):
"""
Translate a diff file into something suitable for inclusion in HDF.
The result is [(filename, revname_old, revname_new, changes)],
where changes has the same format as the result of
`trac.versioncontrol.diff.hdf_diff`.
If the diff cannot be parsed, this method returns None.
"""
def _markup_intraline_change(fromlines, tolines):
from trac.versioncontrol.diff import get_change_extent
for i in xrange(len(fromlines)):
fr, to = fromlines[i], tolines[i]
(start, end) = get_change_extent(fr, to)
if start != 0 or end != 0:
last = end+len(fr)
fromlines[i] = fr[:start] + '\0' + fr[start:last] + \
'\1' + fr[last:]
last = end+len(to)
tolines[i] = to[:start] + '\0' + to[start:last] + \
'\1' + to[last:]
import re
space_re = re.compile(' ( +)|^ ')
def htmlify(match):
div, mod = divmod(len(match.group(0)), 2)
return div * ' ' + mod * ' '
comments = []
changes = []
lines = iter(difflines)
try:
line = lines.next()
while True:
oldpath = oldrev = newpath = newrev = ''
oldinfo = newinfo = []
binary = False
# consume preample, storing free lines in comments
# (also detect the special case of git binary patches)
if not line.startswith('--- '):
if not line.startswith('Index: ') and line != '=' * 67:
comments.append(line)
if line == "GIT binary patch":
binary = True
diffcmd_line = comments[0] # diff --git a/... b/,,,
oldpath, newpath = diffcmd_line.split()[-2:]
if any(c.startswith('new file') for c in comments):
oldpath = '/dev/null'
if any(c.startswith('deleted file') for c in comments):
newpath = '/dev/null'
oldinfo = ['', oldpath]
newinfo = ['', newpath]
index = [c for c in comments if c.startswith('index ')]
if index: # index 8f****78..1e****5c
oldrev, newrev = index[0].split()[-1].split('..')
oldinfo.append(oldrev)
newinfo.append(newrev)
line = lines.next()
while line:
comments.append(line)
line = lines.next()
else:
line = lines.next()
continue
if not oldinfo and not newinfo:
# Base filename/version from '--- <file> [rev]'
oldinfo = line.split(None, 2)
if len(oldinfo) > 1:
oldpath = oldinfo[1]
if len(oldinfo) > 2:
oldrev = oldinfo[2]
# Changed filename/version from '+++ <file> [rev]'
line = lines.next()
if not line.startswith('+++ '):
self.log.debug('expected +++ after ---, got ' + line)
return None
newinfo = line.split(None, 2)
if len(newinfo) > 1:
newpath = newinfo[1]
if len(newinfo) > 2:
newrev = newinfo[2]
shortrev = ('old', 'new')
if oldpath or newpath:
sep = re.compile(r'([/.~\\])')
commonprefix = ''.join(os.path.commonprefix(
[sep.split(newpath), sep.split(oldpath)]))
commonsuffix = ''.join(os.path.commonprefix(
[sep.split(newpath)[::-1],
sep.split(oldpath)[::-1]])[::-1])
if len(commonprefix) > len(commonsuffix):
common = commonprefix
elif commonsuffix:
common = commonsuffix.lstrip('/')
a = oldpath[:-len(commonsuffix)]
b = newpath[:-len(commonsuffix)]
if len(a) < 4 and len(b) < 4:
shortrev = (a, b)
elif oldpath == '/dev/null':
common = _("new file %(new)s",
new=newpath.lstrip('b/'))
shortrev = ('-', '+')
elif newpath == '/dev/null':
common = _("deleted file %(deleted)s",
deleted=oldpath.lstrip('a/'))
shortrev = ('+', '-')
else:
common = '(a) %s vs. (b) %s' % (oldpath, newpath)
shortrev = ('a', 'b')
else:
common = ''
groups = []
groups_title = []
changes.append({'change': 'edit', 'props': [],
'comments': '\n'.join(comments),
'binary': binary,
'diffs': groups,
'diffs_title': groups_title,
'old': {'path': common,
'rev': ' '.join(oldinfo[1:]),
'shortrev': shortrev[0]},
'new': {'path': common,
'rev': ' '.join(newinfo[1:]),
'shortrev': shortrev[1]}})
comments = []
line = lines.next()
while line:
# "@@ -333,10 +329,8 @@" or "@@ -1 +1 @@ [... title ...]"
r = re.match(r'@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@'
'(.*)', line)
if not r:
break
blocks = []
groups.append(blocks)
fromline, fromend, toline, toend = \
[int(x or 1) for x in r.groups()[:4]]
groups_title.append(r.group(5))
last_type = extra = None
fromend += fromline
toend += toline
line = lines.next()
while fromline < fromend or toline < toend or extra:
# First character is the command
command = ' '
if line:
command, line = line[0], line[1:]
# Make a new block?
if (command == ' ') != last_type:
last_type = command == ' '
kind = 'unmod' if last_type else 'mod'
block = {'type': kind,
'base': {'offset': fromline - 1,
'lines': []},
'changed': {'offset': toline - 1,
'lines': []}}
blocks.append(block)
else:
block = blocks[-1]
if command == ' ':
sides = ['base', 'changed']
elif command == '+':
last_side = 'changed'
sides = [last_side]
elif command == '-':
last_side = 'base'
sides = [last_side]
elif command == '\\' and last_side:
meta = block[last_side].setdefault('meta', {})
meta[len(block[last_side]['lines'])] = True
sides = [last_side]
elif command == '@': # ill-formed patch
groups_title[-1] = "%s (%s)" % (
groups_title[-1],
_("this hunk was shorter than expected"))
line = '@'+line
break
else:
self.log.debug('expected +, - or \\, got '+command)
return None
for side in sides:
if side == 'base':
fromline += 1
else:
toline += 1
block[side]['lines'].append(line)
line = lines.next()
extra = line and line[0] == '\\'
except StopIteration:
pass
# Go through all groups/blocks and mark up intraline changes, and
# convert to html
for o in changes:
for group in o['diffs']:
for b in group:
base, changed = b['base'], b['changed']
f, t = base['lines'], changed['lines']
if b['type'] == 'mod':
if len(f) == 0:
b['type'] = 'add'
elif len(t) == 0:
b['type'] = 'rem'
elif len(f) == len(t):
_markup_intraline_change(f, t)
for i in xrange(len(f)):
line = expandtabs(f[i], tabwidth, '\0\1')
line = escape(line, quotes=False)
line = '<del>'.join([space_re.sub(htmlify, seg)
for seg in line.split('\0')])
line = line.replace('\1', '</del>')
f[i] = Markup(line)
if 'meta' in base and i in base['meta']:
f[i] = Markup('<em>%s</em>') % f[i]
for i in xrange(len(t)):
line = expandtabs(t[i], tabwidth, '\0\1')
line = escape(line, quotes=False)
line = '<ins>'.join([space_re.sub(htmlify, seg)
for seg in line.split('\0')])
line = line.replace('\1', '</ins>')
t[i] = Markup(line)
if 'meta' in changed and i in changed['meta']:
t[i] = Markup('<em>%s</em>') % t[i]
return changes
def test_tabstops(self):
self.assertEqual(' ', expandtabs(' \t'))
self.assertEqual(' ', expandtabs('\t\t'))
def test_empty(self):
x = expandtabs('', ignoring='\0')
self.assertEqual('', x)
def diff_blocks(fromlines, tolines, context=None, tabwidth=8,
ignore_blank_lines=0, ignore_case=0, ignore_space_changes=0):
"""Return an array that is adequate for adding to the data dictionary
See `get_filtered_hunks` for the parameter descriptions.
See also the diff_div.html template.
"""
type_map = {'replace': 'mod', 'delete': 'rem', 'insert': 'add',
'equal': 'unmod'}
space_re = re.compile(' ( +)|^ ')
def htmlify(match):
div, mod = divmod(len(match.group(0)), 2)
return div * ' ' + mod * ' '
def markup_intraline_changes(opcodes):
for tag, i1, i2, j1, j2 in opcodes:
if tag == 'replace' and i2 - i1 == j2 - j1:
for i in range(i2 - i1):
fromline, toline = fromlines[i1 + i], tolines[j1 + i]
(start, end) = get_change_extent(fromline, toline)
if start != 0 or end != 0:
last = end + len(fromline)
fromlines[i1 + i] = (
fromline[:start] + '\0' + fromline[start:last] +
'\1' + fromline[last:])
last = end+len(toline)
tolines[j1 + i] = (
toline[:start] + '\0' + toline[start:last] +
'\1' + toline[last:])
yield tag, i1, i2, j1, j2
changes = []
for group in get_filtered_hunks(fromlines, tolines, context,
ignore_blank_lines, ignore_case,
ignore_space_changes):
blocks = []
last_tag = None
for tag, i1, i2, j1, j2 in markup_intraline_changes(group):
if tag != last_tag:
blocks.append({'type': type_map[tag],
'base': {'offset': i1, 'lines': []},
'changed': {'offset': j1, 'lines': []}})
if tag == 'equal':
for line in fromlines[i1:i2]:
line = line.expandtabs(tabwidth)
line = space_re.sub(htmlify, escape(line, quotes=False))
blocks[-1]['base']['lines'].append(Markup(unicode(line)))
for line in tolines[j1:j2]:
line = line.expandtabs(tabwidth)
line = space_re.sub(htmlify, escape(line, quotes=False))
blocks[-1]['changed']['lines'].append(Markup(unicode(line)))
else:
if tag in ('replace', 'delete'):
for line in fromlines[i1:i2]:
line = expandtabs(line, tabwidth, '\0\1')
line = escape(line, quotes=False)
line = '<del>'.join([space_re.sub(htmlify, seg)
for seg in line.split('\0')])
line = line.replace('\1', '</del>')
blocks[-1]['base']['lines'].append(
Markup(unicode(line)))
if tag in ('replace', 'insert'):
for line in tolines[j1:j2]:
line = expandtabs(line, tabwidth, '\0\1')
line = escape(line, quotes=False)
line = '<ins>'.join([space_re.sub(htmlify, seg)
for seg in line.split('\0')])
line = line.replace('\1', '</ins>')
blocks[-1]['changed']['lines'].append(
Markup(unicode(line)))
changes.append(blocks)
return changes
def test_ingoring(self):
x = expandtabs('\0\t', ignoring='\0')
self.assertEqual('\0 ', x)
def test_ingoring(self):
x = expandtabs("\0\t", ignoring="\0")
self.assertEquals("\0 ", x)
def test_tabstops(self):
self.assertEquals(" ", expandtabs(" \t"))
self.assertEquals(" ", expandtabs("\t\t"))
def test_empty(self):
x = expandtabs("", ignoring="\0")
self.assertEquals("", x)
def test_tabstops(self):
self.assertEquals(' ', expandtabs(' \t'))
self.assertEquals(' ', expandtabs('\t\t'))
def test_ingoring(self):
x = expandtabs('\0\t', ignoring='\0')
self.assertEquals('\0 ', x)
def test_empty(self):
x = expandtabs('', ignoring='\0')
self.assertEquals('', x)
def _diff_to_hdf(self, difflines, tabwidth):
"""
Translate a diff file into something suitable for inclusion in HDF.
The result is [(filename, revname_old, revname_new, changes)],
where changes has the same format as the result of
`trac.versioncontrol.diff.hdf_diff`.
If the diff cannot be parsed, this method returns None.
"""
def _markup_intraline_change(fromlines, tolines):
from trac.versioncontrol.diff import _get_change_extent
for i in xrange(len(fromlines)):
fr, to = fromlines[i], tolines[i]
(start, end) = _get_change_extent(fr, to)
if start != 0 or end != 0:
last = end+len(fr)
fromlines[i] = fr[:start] + '\0' + fr[start:last] + \
'\1' + fr[last:]
last = end+len(to)
tolines[i] = to[:start] + '\0' + to[start:last] + \
'\1' + to[last:]
import re
space_re = re.compile(' ( +)|^ ')
def htmlify(match):
div, mod = divmod(len(match.group(0)), 2)
return div * ' ' + mod * ' '
comments = []
changes = []
lines = iter(difflines)
try:
line = lines.next()
while True:
if not line.startswith('--- '):
if not line.startswith('Index: ') and line != '='*67:
comments.append(line)
line = lines.next()
continue
oldpath = oldrev = newpath = newrev = ''
# Base filename/version
oldinfo = line.split(None, 2)
if len(oldinfo) > 1:
oldpath = oldinfo[1]
if len(oldinfo) > 2:
oldrev = oldinfo[2]
# Changed filename/version
line = lines.next()
if not line.startswith('+++ '):
self.log.debug('expected +++ after ---, got '+line)
return None
newinfo = line.split(None, 2)
if len(newinfo) > 1:
newpath = newinfo[1]
if len(newinfo) > 2:
newrev = newinfo[2]
shortrev = ('old', 'new')
if oldpath or newpath:
sep = re.compile(r'([/.~\\])')
commonprefix = ''.join(os.path.commonprefix(
[sep.split(newpath), sep.split(oldpath)]))
commonsuffix = ''.join(os.path.commonprefix(
[sep.split(newpath)[::-1],
sep.split(oldpath)[::-1]])[::-1])
if len(commonprefix) > len(commonsuffix):
common = commonprefix
elif commonsuffix:
common = commonsuffix.lstrip('/')
a = oldpath[:-len(commonsuffix)]
b = newpath[:-len(commonsuffix)]
if len(a) < 4 and len(b) < 4:
shortrev = (a, b)
else:
common = '(a) %s vs. (b) %s' % (oldpath, newpath)
shortrev = ('a', 'b')
else:
common = ''
groups = []
changes.append({'change': 'edit', 'props': [],
'comments': '\n'.join(comments),
'diffs': groups,
'old': {'path': common,
'rev': ' '.join(oldinfo[1:]),
'shortrev': shortrev[0]},
'new': {'path': common,
'rev': ' '.join(newinfo[1:]),
'shortrev': shortrev[1]}})
comments = []
line = lines.next()
while line:
# "@@ -333,10 +329,8 @@" or "@@ -1 +1 @@"
r = re.match(r'@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@',
line)
if not r:
break
blocks = []
groups.append(blocks)
fromline, fromend, toline, toend = [int(x or 1)
for x in r.groups()]
last_type = last_change = extra = None
fromend += fromline
toend += toline
line = lines.next()
while fromline < fromend or toline < toend or extra:
# First character is the command
command = ' '
if line:
command, line = line[0], line[1:]
# Make a new block?
if (command == ' ') != last_type:
last_type = command == ' '
kind = last_type and 'unmod' or 'mod'
block = {'type': kind,
'base': {'offset': fromline - 1,
'lines': []},
'changed': {'offset': toline - 1,
'lines': []}}
blocks.append(block)
else:
block = blocks[-1]
if command == ' ':
sides = ['base', 'changed']
elif command == '+':
last_side = 'changed'
sides = [last_side]
elif command == '-':
last_side = 'base'
sides = [last_side]
elif command == '\\' and last_side:
meta = block[last_side].setdefault('meta', {})
meta[len(block[last_side]['lines'])] = True
sides = [last_side]
else:
self.log.debug('expected +, - or \\, got '+command)
return None
for side in sides:
if side == 'base':
fromline += 1
else:
toline += 1
block[side]['lines'].append(line)
line = lines.next()
extra = line and line[0] == '\\'
except StopIteration:
pass
# Go through all groups/blocks and mark up intraline changes, and
# convert to html
for o in changes:
for group in o['diffs']:
for b in group:
base, changed = b['base'], b['changed']
f, t = base['lines'], changed['lines']
if b['type'] == 'mod':
if len(f) == 0:
b['type'] = 'add'
elif len(t) == 0:
b['type'] = 'rem'
elif len(f) == len(t):
_markup_intraline_change(f, t)
for i in xrange(len(f)):
line = expandtabs(f[i], tabwidth, '\0\1')
line = escape(line, quotes=False)
line = '<del>'.join([space_re.sub(htmlify, seg)
for seg in line.split('\0')])
line = line.replace('\1', '</del>')
f[i] = Markup(line)
if 'meta' in base and i in base['meta']:
f[i] = Markup('<em>%s</em>') % f[i]
for i in xrange(len(t)):
line = expandtabs(t[i], tabwidth, '\0\1')
line = escape(line, quotes=False)
line = '<ins>'.join([space_re.sub(htmlify, seg)
for seg in line.split('\0')])
line = line.replace('\1', '</ins>')
t[i] = Markup(line)
if 'meta' in changed and i in changed['meta']:
t[i] = Markup('<em>%s</em>') % t[i]
return changes
