mirror of https://github.com/zulip/zulip.git
187 lines
8.3 KiB
Python
187 lines
8.3 KiB
Python
from __future__ import absolute_import
|
|
from __future__ import print_function
|
|
|
|
from typing import Any, Dict, List
|
|
|
|
from .template_parser import (
|
|
tokenize,
|
|
Token,
|
|
is_django_block_tag,
|
|
)
|
|
from six.moves import range
|
|
import os
|
|
|
|
def pretty_print_html(html, num_spaces=4):
|
|
# type: (str, int) -> str
|
|
# We use 1-based indexing for both rows and columns.
|
|
tokens = tokenize(html)
|
|
lines = html.split('\n')
|
|
|
|
# We will keep a stack of "start" tags so that we know
|
|
# when HTML ranges end. Note that some start tags won't
|
|
# be blocks from an indentation standpoint.
|
|
stack = [] # type: List[Dict[str, Any]]
|
|
|
|
# Seed our stack with a pseudo entry to make depth calculations
|
|
# easier.
|
|
info = dict(
|
|
block=False,
|
|
depth=-1,
|
|
line=-1,
|
|
token_kind='html_start',
|
|
tag='html',
|
|
extra_indent=0)
|
|
stack.append(info)
|
|
|
|
# Our main job is to figure out offsets that we use to nudge lines
|
|
# over by.
|
|
offsets = {} # type: Dict[int, int]
|
|
|
|
# Loop through our start/end tokens, and calculate offsets. As
|
|
# we proceed, we will push/pop info dictionaries on/off a stack.
|
|
for token in tokens:
|
|
|
|
if token.kind in ('html_start', 'handlebars_start',
|
|
'html_singleton', 'django_start') and stack[-1]['tag'] != 'pre':
|
|
# An HTML start tag should only cause a new indent if we
|
|
# are on a new line.
|
|
if (token.tag not in ('extends', 'include', 'else', 'elif') and
|
|
(is_django_block_tag(token.tag) or
|
|
token.kind != 'django_start')):
|
|
is_block = token.line > stack[-1]['line']
|
|
|
|
if is_block:
|
|
if (((token.kind == 'handlebars_start' and
|
|
stack[-1]['token_kind'] == 'handlebars_start') or
|
|
(token.kind == 'django_start' and
|
|
stack[-1]['token_kind'] == 'django_start')) and
|
|
not stack[-1]['indenting']):
|
|
info = stack.pop()
|
|
info['depth'] = info['depth'] + 1
|
|
info['indenting'] = True
|
|
info['adjust_offset_until'] = token.line
|
|
stack.append(info)
|
|
new_depth = stack[-1]['depth'] + 1
|
|
extra_indent = stack[-1]['extra_indent']
|
|
line = lines[token.line - 1]
|
|
adjustment = len(line)-len(line.lstrip()) + 1
|
|
offset = (1 + extra_indent + new_depth * num_spaces) - adjustment
|
|
info = dict(
|
|
block=True,
|
|
depth=new_depth,
|
|
actual_depth=new_depth,
|
|
line=token.line,
|
|
tag=token.tag,
|
|
token_kind=token.kind,
|
|
line_span=token.line_span,
|
|
offset=offset,
|
|
extra_indent=token.col - adjustment + extra_indent,
|
|
extra_indent_prev=extra_indent,
|
|
adjustment=adjustment,
|
|
indenting=True,
|
|
adjust_offset_until=token.line
|
|
)
|
|
if token.kind in ('handlebars_start', 'django_start'):
|
|
info.update(dict(depth=new_depth - 1, indenting=False))
|
|
else:
|
|
info = dict(
|
|
block=False,
|
|
depth=stack[-1]['depth'],
|
|
actual_depth=stack[-1]['depth'],
|
|
line=token.line,
|
|
tag=token.tag,
|
|
token_kind=token.kind,
|
|
extra_indent=stack[-1]['extra_indent']
|
|
)
|
|
stack.append(info)
|
|
elif token.kind in ('html_end', 'handlebars_end',
|
|
'html_singleton_end', 'django_end') and (stack[-1]['tag'] != 'pre' or token.tag == 'pre'):
|
|
info = stack.pop()
|
|
if info['block']:
|
|
# We are at the end of an indentation block. We
|
|
# assume the whole block was formatted ok before, just
|
|
# possibly at an indentation that we don't like, so we
|
|
# nudge over all lines in the block by the same offset.
|
|
start_line = info['line']
|
|
end_line = token.line
|
|
if token.tag == 'pre':
|
|
offsets[start_line] = 0
|
|
offsets[end_line] = 0
|
|
else:
|
|
offsets[start_line] = info['offset']
|
|
line = lines[token.line - 1]
|
|
adjustment = len(line)-len(line.lstrip()) + 1
|
|
if adjustment == token.col:
|
|
offsets[end_line] = (info['offset'] +
|
|
info['adjustment'] -
|
|
adjustment +
|
|
info['extra_indent'] -
|
|
info['extra_indent_prev'])
|
|
elif (start_line + info['line_span'] - 1 == end_line and
|
|
info['line_span'] > 2 and token.kind != 'html_singleton_end'):
|
|
offsets[end_line] = (1 + info['extra_indent'] + (info['depth'] + 1) * num_spaces) - adjustment
|
|
elif token.line != info['line']:
|
|
offsets[end_line] = info['offset']
|
|
if token.tag != 'pre' and token.kind != 'html_singleton_end' and token.tag != 'script':
|
|
for line_num in range(start_line + 1, end_line):
|
|
# Be careful not to override offsets that happened
|
|
# deeper in the HTML within our block.
|
|
if line_num not in offsets:
|
|
line = lines[line_num - 1]
|
|
new_depth = info['depth'] + 1
|
|
if (line.lstrip().startswith('{{else}}') or
|
|
line.lstrip().startswith('{% else %}') or
|
|
line.lstrip().startswith('{% elif')):
|
|
new_depth = info['actual_depth']
|
|
extra_indent = info['extra_indent']
|
|
adjustment = len(line)-len(line.lstrip()) + 1
|
|
offset = (1 + extra_indent + new_depth * num_spaces) - adjustment
|
|
offsets[line_num] = offset
|
|
elif (token.kind in ('handlebars_end', 'django_end') and
|
|
info['indenting'] and
|
|
line_num < info['adjust_offset_until']):
|
|
offsets[line_num] += num_spaces
|
|
elif token.tag != 'pre':
|
|
for line_num in range(start_line + 1, end_line):
|
|
if line_num not in offsets:
|
|
offsets[line_num] = info['offset']
|
|
else:
|
|
for line_num in range(start_line + 1, end_line):
|
|
if line_num not in offsets:
|
|
offsets[line_num] = 0
|
|
|
|
# Now that we have all of our offsets calculated, we can just
|
|
# join all our lines together, fixing up offsets as needed.
|
|
formatted_lines = []
|
|
for i, line in enumerate(html.split('\n')):
|
|
row = i + 1
|
|
offset = offsets.get(row, 0)
|
|
pretty_line = line
|
|
if line.strip() == '':
|
|
pretty_line = ''
|
|
else:
|
|
if offset > 0:
|
|
pretty_line = (' ' * offset) + pretty_line
|
|
elif offset < 0:
|
|
pretty_line = pretty_line[-1 * offset:]
|
|
assert line.strip() == pretty_line.strip()
|
|
formatted_lines.append(pretty_line)
|
|
|
|
return '\n'.join(formatted_lines)
|
|
|
|
|
|
def validate_indent_html(fn):
|
|
# type: (str) -> int
|
|
file = open(fn)
|
|
html = file.read()
|
|
phtml = pretty_print_html(html)
|
|
file.close()
|
|
if not html.split('\n') == phtml.split('\n'):
|
|
temp_file = open('/var/tmp/pretty_html.txt', 'w')
|
|
temp_file.write(phtml)
|
|
temp_file.close()
|
|
print('Invalid Indentation detected in file: %s\nDiff for the file against expected indented file:' % (fn))
|
|
os.system('diff %s %s' % (fn, '/var/tmp/pretty_html.txt'))
|
|
return 0
|
|
return 1
|