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
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
|
# Block quotes
from __future__ import annotations
import logging
from ..common.utils import isSpace
from .state_block import StateBlock
LOGGER = logging.getLogger(__name__)
def blockquote(state: StateBlock, startLine: int, endLine: int, silent: bool):
LOGGER.debug(
"entering blockquote: %s, %s, %s, %s", state, startLine, endLine, silent
)
oldLineMax = state.lineMax
pos = state.bMarks[startLine] + state.tShift[startLine]
max = state.eMarks[startLine]
# if it's indented more than 3 spaces, it should be a code block
if (state.sCount[startLine] - state.blkIndent) >= 4:
return False
# check the block quote marker
if state.srcCharCode[pos] != 0x3E: # /* > */
return False
pos += 1
# we know that it's going to be a valid blockquote,
# so no point trying to find the end of it in silent mode
if silent:
return True
# set offset past spaces and ">"
initial = offset = state.sCount[startLine] + 1
try:
second_char_code: int | None = state.srcCharCode[pos]
except IndexError:
second_char_code = None
# skip one optional space after '>'
if second_char_code == 0x20: # /* space */
# ' > test '
# ^ -- position start of line here:
pos += 1
initial += 1
offset += 1
adjustTab = False
spaceAfterMarker = True
elif second_char_code == 0x09: # /* tab */
spaceAfterMarker = True
if (state.bsCount[startLine] + offset) % 4 == 3:
# ' >\t test '
# ^ -- position start of line here (tab has width==1)
pos += 1
initial += 1
offset += 1
adjustTab = False
else:
# ' >\t test '
# ^ -- position start of line here + shift bsCount slightly
# to make extra space appear
adjustTab = True
else:
spaceAfterMarker = False
oldBMarks = [state.bMarks[startLine]]
state.bMarks[startLine] = pos
while pos < max:
ch = state.srcCharCode[pos]
if isSpace(ch):
if ch == 0x09: # / tab /
offset += (
4
- (offset + state.bsCount[startLine] + (1 if adjustTab else 0)) % 4
)
else:
offset += 1
else:
break
pos += 1
oldBSCount = [state.bsCount[startLine]]
state.bsCount[startLine] = (
state.sCount[startLine] + 1 + (1 if spaceAfterMarker else 0)
)
lastLineEmpty = pos >= max
oldSCount = [state.sCount[startLine]]
state.sCount[startLine] = offset - initial
oldTShift = [state.tShift[startLine]]
state.tShift[startLine] = pos - state.bMarks[startLine]
terminatorRules = state.md.block.ruler.getRules("blockquote")
oldParentType = state.parentType
state.parentType = "blockquote"
# Search the end of the block
#
# Block ends with either:
# 1. an empty line outside:
# ```
# > test
#
# ```
# 2. an empty line inside:
# ```
# >
# test
# ```
# 3. another tag:
# ```
# > test
# - - -
# ```
# for (nextLine = startLine + 1; nextLine < endLine; nextLine++) {
nextLine = startLine + 1
while nextLine < endLine:
# check if it's outdented, i.e. it's inside list item and indented
# less than said list item:
#
# ```
# 1. anything
# > current blockquote
# 2. checking this line
# ```
isOutdented = state.sCount[nextLine] < state.blkIndent
pos = state.bMarks[nextLine] + state.tShift[nextLine]
max = state.eMarks[nextLine]
if pos >= max:
# Case 1: line is not inside the blockquote, and this line is empty.
break
evaluatesTrue = state.srcCharCode[pos] == 0x3E and not isOutdented # /* > */
pos += 1
if evaluatesTrue:
# This line is inside the blockquote.
# set offset past spaces and ">"
initial = offset = state.sCount[nextLine] + 1
try:
next_char: int | None = state.srcCharCode[pos]
except IndexError:
next_char = None
# skip one optional space after '>'
if next_char == 0x20: # /* space */
# ' > test '
# ^ -- position start of line here:
pos += 1
initial += 1
offset += 1
adjustTab = False
spaceAfterMarker = True
elif next_char == 0x09: # /* tab */
spaceAfterMarker = True
if (state.bsCount[nextLine] + offset) % 4 == 3:
# ' >\t test '
# ^ -- position start of line here (tab has width==1)
pos += 1
initial += 1
offset += 1
adjustTab = False
else:
# ' >\t test '
# ^ -- position start of line here + shift bsCount slightly
# to make extra space appear
adjustTab = True
else:
spaceAfterMarker = False
oldBMarks.append(state.bMarks[nextLine])
state.bMarks[nextLine] = pos
while pos < max:
ch = state.srcCharCode[pos]
if isSpace(ch):
if ch == 0x09:
offset += (
4
- (
offset
+ state.bsCount[nextLine]
+ (1 if adjustTab else 0)
)
% 4
)
else:
offset += 1
else:
break
pos += 1
lastLineEmpty = pos >= max
oldBSCount.append(state.bsCount[nextLine])
state.bsCount[nextLine] = (
state.sCount[nextLine] + 1 + (1 if spaceAfterMarker else 0)
)
oldSCount.append(state.sCount[nextLine])
state.sCount[nextLine] = offset - initial
oldTShift.append(state.tShift[nextLine])
state.tShift[nextLine] = pos - state.bMarks[nextLine]
nextLine += 1
continue
# Case 2: line is not inside the blockquote, and the last line was empty.
if lastLineEmpty:
break
# Case 3: another tag found.
terminate = False
for terminatorRule in terminatorRules:
if terminatorRule(state, nextLine, endLine, True):
terminate = True
break
if terminate:
# Quirk to enforce "hard termination mode" for paragraphs;
# normally if you call `tokenize(state, startLine, nextLine)`,
# paragraphs will look below nextLine for paragraph continuation,
# but if blockquote is terminated by another tag, they shouldn't
state.lineMax = nextLine
if state.blkIndent != 0:
# state.blkIndent was non-zero, we now set it to zero,
# so we need to re-calculate all offsets to appear as
# if indent wasn't changed
oldBMarks.append(state.bMarks[nextLine])
oldBSCount.append(state.bsCount[nextLine])
oldTShift.append(state.tShift[nextLine])
oldSCount.append(state.sCount[nextLine])
state.sCount[nextLine] -= state.blkIndent
break
oldBMarks.append(state.bMarks[nextLine])
oldBSCount.append(state.bsCount[nextLine])
oldTShift.append(state.tShift[nextLine])
oldSCount.append(state.sCount[nextLine])
# A negative indentation means that this is a paragraph continuation
#
state.sCount[nextLine] = -1
nextLine += 1
oldIndent = state.blkIndent
state.blkIndent = 0
token = state.push("blockquote_open", "blockquote", 1)
token.markup = ">"
token.map = lines = [startLine, 0]
state.md.block.tokenize(state, startLine, nextLine)
token = state.push("blockquote_close", "blockquote", -1)
token.markup = ">"
state.lineMax = oldLineMax
state.parentType = oldParentType
lines[1] = state.line
# Restore original tShift; this might not be necessary since the parser
# has already been here, but just to make sure we can do that.
for i, item in enumerate(oldTShift):
state.bMarks[i + startLine] = oldBMarks[i]
state.tShift[i + startLine] = item
state.sCount[i + startLine] = oldSCount[i]
state.bsCount[i + startLine] = oldBSCount[i]
state.blkIndent = oldIndent
return True
|
