forked from CCExtractor/sample-platform
-
Notifications
You must be signed in to change notification settings - Fork 0
/
diff.py
218 lines (175 loc) · 7.12 KB
/
diff.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
import html
import re
from typing import Any, List, Optional, Tuple, Union
# number of lines to show in view mode
MAX_NUMBER_OF_LINES_TO_VIEW = 50
index: dict = dict() # for optimization
def zip_(ls: List[str]) -> str:
"""Add an alias for strings joining."""
return ''.join(ls)
def compress(s: str) -> List[str]:
"""Compress words and digits to one list."""
return re.split(r'(\W)', s)
def eq(a: List[str], b: List[str], same_regions: Optional[List[List[int]]] = None,
delta_a: int = 0, delta_b: int = 0) -> Union[List[int], List[Union[int, List[str]]]]:
"""Implement equality factor."""
if index.get(zip_(a), dict()).get(zip_(b), None) is None:
e = 0
rez = [] # type: Union[int, Any, List[str]]
best_len, a_iter, b_iter = -1, -1, -1
find = False
for line in range(min(len(a), len(b)), 0, -1):
if find:
break
for i in range(len(a) - line + 1):
if find:
break
for j in range(len(b) - line + 1):
if a[i:i + line] != b[j:j + line]:
continue
find = True
sub_a_beg = a[0:i]
sub_b_beg = b[0:j]
_e1 = eq(sub_a_beg, sub_b_beg)[0]
sub_a_end = a[i + line:]
sub_b_end = b[j + line:]
_e2 = eq(sub_a_end, sub_b_end)[0]
if _e1 + _e2 + line > e: # type: ignore
e = _e1 + _e2 + line # type: ignore
best_len = line
a_iter = i
b_iter = j
rez = (eq(sub_a_beg, sub_b_beg)[1] + a[i: i + line] + eq(sub_a_end, # type: ignore
sub_b_end)[1])
index[zip_(a)] = index.get(zip_(a), dict())
index[zip_(a)][zip_(b)] = [e, rez, a_iter, b_iter, best_len]
if same_regions is not None and index[zip_(a)][zip_(b)][0] > 1:
a_iter, b_iter, best_len = index[zip_(a)][zip_(b)][2:]
# print(delta)
same_regions.append([
a_iter + delta_a, a_iter + best_len + delta_a,
b_iter + delta_b, b_iter + best_len + delta_b
])
sub_a_beg = a[0:a_iter]
sub_b_beg = b[0:b_iter]
sub_a_end = a[a_iter + best_len:]
sub_b_end = b[b_iter + best_len:]
eq(sub_a_beg, sub_b_beg, same_regions, delta_a, delta_b)
eq(sub_a_end, sub_b_end, same_regions, delta_a + a_iter + best_len, delta_b + b_iter + best_len)
return index[zip_(a)][zip_(b)]
def _process(test_result: str, correct: str, suffix_id: str) -> Tuple[str, str]:
"""Process one line."""
test_result = html.escape(test_result)
correct = html.escape(correct)
tr_compr = compress(test_result)
cr_compr = compress(correct)
regions = [] # type: List[List[int]]
eq(tr_compr, cr_compr, same_regions=regions)
events_test = [] # type: List[List[object]]
events_correct = []
for reg_id in range(len(regions)):
reg = regions[reg_id]
events_test.append([reg[0], 'OPEN', reg_id])
events_test.append([reg[1], 'CLOSE', reg_id])
events_correct.append([reg[2], 'OPEN', reg_id])
events_correct.append([reg[3], 'CLOSE', reg_id])
events_test.sort()
events_correct.sort()
html_test = create_diff_entries(suffix_id, 'test_result', events_test, tr_compr)
html_correct = create_diff_entries(suffix_id, 'correct', events_correct, cr_compr)
return f'<div class="diff-div-text">{html_test}</div>', f'<div class="diff-div-text">{html_correct}</div>'
def create_diff_entries(suffix_id: str, id_name: str, events: List[List[object]], compressed_data: List[str]) -> str:
"""Create the diff entries for the correct or wrong side."""
result = ''
idx = 0
for event in events:
while idx < event[0]: # type: ignore
result += compressed_data[idx]
idx += 1
if event[1] == 'OPEN':
cl = f'<div class="diff-same-region" id="{event[2]}_diff_same_{id_name}_{suffix_id}">'
result += cl
else:
result += '</div>'
result += ''.join(compressed_data[idx:])
return result
def get_html_diff(test_correct_lines: List[str], test_res_lines: List[str], to_view: bool = True) -> str:
"""Return generated difference in HTML formatted table."""
# variable to keep count of diff lines noted
number_of_noted_diff_lines = 0
html = """
<table>
<tr>
<td class="diff-table-td" style="width: 30px;">n°</td>
<td class="diff-table-td">Result</td>
</tr>
<tr>
<td class="diff-table-td" style="width: 30px;"></td>
<td class="diff-table-td">Expected</td>
</tr>
</table>"""
res_len = len(test_res_lines)
correct_len = len(test_correct_lines)
if res_len <= correct_len:
use = res_len
till = correct_len
else:
use = correct_len
till = res_len
for line in range(use):
if to_view and number_of_noted_diff_lines >= MAX_NUMBER_OF_LINES_TO_VIEW:
break
if test_correct_lines[line] == test_res_lines[line]:
continue
html += """
<table>"""
actual, expected = _process(test_res_lines[line], test_correct_lines[line], suffix_id=str(line))
html += f"""
<tr>
<td class="diff-table-td" style="width: 30px;">{line + 1}</td>
<td class="diff-table-td">{actual}</td>
</tr>
<tr>
<td class="diff-table-td" style="width: 30px;"></td>
<td class="diff-table-td">{expected}</td>
</tr>"""
html += """
</table>"""
# increase noted diff line by one
number_of_noted_diff_lines += 1
# processing remaining lines
for line in range(use, till):
# stop at 50 lines if test-data for viewing
if to_view and number_of_noted_diff_lines >= MAX_NUMBER_OF_LINES_TO_VIEW:
break
html += """
<table>"""
if till == res_len:
output, _ = _process(test_res_lines[line], " ", suffix_id=str(line))
html += f"""
<tr>
<td class="diff-table-td" style="width: 30px;">{line + 1}</td>
<td class="diff-table-td">{output}</td>
</tr>
<tr>
<td class="diff-table-td" style="width: 30px;"></td>
<td class="diff-table-td"></td>
</tr>
"""
else:
_, output = _process(" ", test_correct_lines[line], suffix_id=str(line))
html += f"""
<tr>
<td class="diff-table-td" style="width: 30px;">{line + 1}</td>
<td class="diff-table-td"></td>
</tr>
<tr>
<td class="diff-table-td" style="width: 30px;"></td>
<td class="diff-table-td">{output}</td>
</tr>
"""
html += """
<table>"""
# increase noted diff line by one
number_of_noted_diff_lines += 1
return html