summaryrefslogtreecommitdiff
path: root/macros/xetex/latex/exam-zh/tex/exam-zh-textfigure.sty
blob: 77a98eb0ba187bb2bbd54bc271798df31d426f29 (plain)
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
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
%
% Copyright (c) 2022 Kangwei Xia
% Released under the LaTeX Project Public License v1.3c License.
% Repository: https://gitee.com/xkwxdyy/exam-zh
%
\NeedsTeXFormat{LaTeX2e}

\RequirePackage{expl3}

\ProvidesExplPackage {exam-zh-textfigure} {2022-08-28} {v0.1.19}
  {exam-zh text with figure module}

\RequirePackage { wrapstuff }
\RequirePackage { tabularray }
\RequirePackage { varwidth }
\RequirePackage { graphicx }
\RequirePackage { filehook }

\AtEndOfPackageFile* { exam-zh-choices }
  {
    \AddToHook { env / choices / before }
      { \wrapstuffclear }
  }

%% multifigures 环境,排版多张图片 %%

% \begin{multifigures}
%   \item[题 9 图:勾股数] \includegraphics[width=3cm]{example-image.png}
%   \item[题 11 图:圆锥曲线] \includegraphics[width=3cm]{example-image.png}
% \end{multifigures}

% 图片相对于 label 的方位
\str_new:N \l__examzh_multifigures_figure_position_str
% coffin type 的对齐方式
\str_new:N \l__examzh_multifigures_coffin_align_str


\keys_define:nn { exam-zh / multifigures }
  {
    % 每行多少个(等价于有多少列)
    columns .int_set:N = \l__examzh_multifigures_column_int,
    % 图片相对于文字的位置(上下左右)
    fig-pos .choices:nn =
      { top, above, bottom, below, left, right }
      { \str_set:Nx \l__examzh_multifigures_figure_position_str { \l_keys_choice_tl } },
    % 环境上方的额外距离
    top-sep .skip_set:N = \l__examzh_multifigures_top_sep_skip,
    % 环境下方的额外距离
    bottom-sep .skip_set:N = \l__examzh_multifigures_bottom_sep_skip,
    % 整体的偏移量
    xshift .dim_set:N = \l__examzh_multifigures_xshift_dim,
    hshift .dim_set:N = \l__examzh_multifigures_xshift_dim,
    yshift .dim_set:N = \l__examzh_multifigures_yshift_dim,
    vshift .dim_set:N = \l__examzh_multifigures_yshift_dim,
    % label 的偏移量
    label-xshift .dim_set:N = \l__examzh_multifigures_label_xshift_dim,
    label-hshift .dim_set:N = \l__examzh_multifigures_label_xshift_dim,
    label-yshift .dim_set:N = \l__examzh_multifigures_label_yshift_dim,
    label-vshift .dim_set:N = \l__examzh_multifigures_label_yshift_dim,
    % 对齐方式
    align .choices:nn = 
      { t, m, b }
      { \str_set:Nx \l__examzh_multifigures_coffin_align_str { \l_keys_choice_tl } }
  }
\keys_set:nn { exam-zh / multifigures }
  {
    columns      = 3,
    fig-pos      = above,
    label-xshift = 0pt,
    label-yshift = 0pt,
    align        = b,
    top-sep      = 1ex plus .5ex minus .5ex,
    bottom-sep   = 0pt,
  }

% item 的 index 指标(即第几个 item)
\int_new:N \l__examzh_multifigures_item_index_int
% 将拼接后的 coffin 存到 seq 里
\seq_new:N \l__examzh_multifigures_store_seq
% 上面的 seq 的 item 数
\int_new:N \l__examzh_multifigures_store_seq_item_int
% 最终放在 tblr 里的内容
\tl_new:N \l__examzh_multifigures_tblr_content_tl

\NewDocumentEnvironment { multifigures } { O{ } +O{ } }
  {
    \group_begin:
      \RenewDocumentCommand \item { O{ } }
        { \__examzh_multifigures_item:n {##1} }
      \int_set:Nn \l__examzh_multifigures_item_index_int {0}
      \seq_clear:N \l__examzh_multifigures_store_seq
      \tl_clear:N \l__examzh_multifigures_tblr_content_tl
      \keys_set:nn { exam-zh / multifigures } {#1}
  }
  {
      % 结束收集
        \unskip
      \end{varwidth}
      \hcoffin_set_end:
      % 拼接 label 和 figure
      \__examzh_multifigures_coffin_join:
      % 输出
      \__examzh_multifigures_coffin_typeset:n {#2}
      % \par \int_use:N \l__examzh_multifigures_item_index_int
    \group_end:
  }
% 拼接 label 和 figure
\cs_new:Npn \__examzh_multifigures_coffin_join:
  {
    \int_step_inline:nn { \l__examzh_multifigures_item_index_int }
      {
        \__examzh_multifigures_coffin_join_position_set:n {##1}
        \seq_gput_right:Nn \l__examzh_multifigures_store_seq
          {
            \__examzh_multifigures_coffin_align_set:n {##1}
          }
      }
  }
\cs_new:Npn \__examzh_multifigures_coffin_align_set:n #1
  {
    \str_case:Vn \l__examzh_multifigures_coffin_align_str
      {
        {t} { \__examzh_multifigures_coffin_align_set_t:n {#1} }
        {m} { \__examzh_multifigures_coffin_align_set_m:n {#1} }
        {b} { \__examzh_multifigures_coffin_align_set_b:n {#1} }
      }
  }
\cs_new:Npn \__examzh_multifigures_coffin_align_set_t:n #1
  {
    \coffin_typeset:cnnnn
      { l__examzh_multifigures_figure_ \int_to_roman:n { #1 } _coffin }
      { l } { t }  % align = t
      { \l__examzh_multifigures_xshift_dim } { \l__examzh_multifigures_yshift_dim + 1em }
  }
\cs_new:Npn \__examzh_multifigures_coffin_align_set_m:n #1
  {
    \coffin_typeset:cnnnn
      { l__examzh_multifigures_figure_ \int_to_roman:n { #1 } _coffin }
      { l } { vc }  % align = m
      { \l__examzh_multifigures_xshift_dim } { \l__examzh_multifigures_yshift_dim }
  }
\cs_new:Npn \__examzh_multifigures_coffin_align_set_b:n #1
  {
    \coffin_typeset:cnnnn
      { l__examzh_multifigures_figure_ \int_to_roman:n { #1 } _coffin }
      { l } { b }   % align = b
      { \l__examzh_multifigures_xshift_dim } { \l__examzh_multifigures_yshift_dim }
  }
\cs_new:Npn \__examzh_multifigures_coffin_join_position_set:n #1
  {
    \use:c { __examzh_multifigures_coffin_join_position_set_ \l__examzh_multifigures_figure_position_str :n } {#1}
  }
\cs_new:Npn \__examzh_multifigures_coffin_join_position_set_top:n #1
  {
    \coffin_join:cnncnnnn
      { l__examzh_multifigures_figure_ \int_to_roman:n {#1} _ coffin }
      { hc } { b }
      { l__examzh_multifigures_label_ \int_to_roman:n {#1} _ coffin }
      { hc } { t }
      { \l__examzh_multifigures_label_xshift_dim }
      { \l__examzh_multifigures_label_yshift_dim - 6pt }
  }
\cs_set_eq:NN 
  \__examzh_multifigures_coffin_join_position_set_above:n 
  \__examzh_multifigures_coffin_join_position_set_top:n
\cs_new:Npn \__examzh_multifigures_coffin_join_position_set_bottom:n #1
  {
    \coffin_join:cnncnnnn
      { l__examzh_multifigures_figure_ \int_to_roman:n {#1} _ coffin }
      { hc } { t }
      { l__examzh_multifigures_label_ \int_to_roman:n {#1} _ coffin }
      { hc } { b }
      { \l__examzh_multifigures_label_xshift_dim }
      { \l__examzh_multifigures_label_yshift_dim + 6pt }
  }
\cs_set_eq:NN 
  \__examzh_multifigures_coffin_join_position_set_below:n 
  \__examzh_multifigures_coffin_join_position_set_bottom:n
\cs_new:Npn \__examzh_multifigures_coffin_join_position_set_left:n #1
  {
    \coffin_join:cnncnnnn
      { l__examzh_multifigures_figure_ \int_to_roman:n {#1} _ coffin }
      { l } { vc }
      { l__examzh_multifigures_label_ \int_to_roman:n {#1} _ coffin }
      { r } { vc }
      { \l__examzh_multifigures_label_xshift_dim - 6pt }
      { \l__examzh_multifigures_label_yshift_dim }
  }
\cs_new:Npn \__examzh_multifigures_coffin_join_position_set_right:n #1
  {
    \coffin_join:cnncnnnn
      { l__examzh_multifigures_figure_ \int_to_roman:n {#1} _ coffin }
      { r } { vc }
      { l__examzh_multifigures_label_ \int_to_roman:n {#1} _ coffin }
      { l } { vc }
      { \l__examzh_multifigures_label_xshift_dim + 2pt }
      { \l__examzh_multifigures_label_yshift_dim }
  }
\cs_new:Npn \__examzh_multifigures_coffin_typeset:n #1
  {
    \__examzh_multifigures_coffin_typeset_count:
    \seq_map_indexed_inline:Nn \l__examzh_multifigures_store_seq
      % ##1: index
      % ##2: content
      {
        \int_compare:nNnTF { \int_mod:nn {##1} { \l__examzh_multifigures_column_int } } = {0}
          {
            \tl_gput_right:Nn \l__examzh_multifigures_tblr_content_tl { ##2 \\ }
          }
          {
            \tl_gput_right:Nn \l__examzh_multifigures_tblr_content_tl { ##2 & }
          }
      }
    % 如果 seq 的 item 比 column 多且不整除 column 的话,要补 &
    \int_compare:nNnT { \l__examzh_multifigures_store_seq_item_int } > { \l__examzh_multifigures_column_int }
      {
        \int_compare:nNnF { \l__examzh_multifigures_item_num_mod_column_left_int } = { 0 }
          {
            \tl_gput_right:Nx \l__examzh_multifigures_tblr_content_tl
              {
                \prg_replicate:nn { \l__examzh_multifigures_item_num_mod_column_left_int -1 } {&}
              }
            % \int_use:N \l__examzh_multifigures_item_num_mod_column_left_int
          }
      }
    \par 
    \vspace*{ \l__examzh_multifigures_top_sep_skip }
    \noindent \centering
    % \SetTblrInner
    %   {
    %     rowsep = 4pt,
    %     % colsep = 0pt
    %   }
    \begin{tblr}
      [ expand = \l__examzh_multifigures_tblr_content_tl ]
      {
        width = \textwidth,
        cells = {c},
        column{1} = {leftsep = 0pt},
        column{Z} = {rightsep = 0pt},
        rows = 
          {
            abovesep = 0pt,
            belowsep = 0pt,
          },
        % vlines,hlines,
        #1
      }
      \l__examzh_multifigures_tblr_content_tl
    \end{tblr}
    \vspace*{ \l__examzh_multifigures_bottom_sep_skip }
    \par
  }
\int_new:N \l__examzh_multifigures_item_num_mod_column_left_int
\cs_new:Npn \__examzh_multifigures_coffin_typeset_count:
  {
    % 计算 seq 有多少项
    \int_set:Nn \l__examzh_multifigures_store_seq_item_int
      { \seq_count:N \l__examzh_multifigures_store_seq }
    % seq 项数小于 column 的话,column 设置为 seq 项数
    \int_compare:nNnTF { \l__examzh_multifigures_store_seq_item_int } < { \l__examzh_multifigures_column_int }
      { \int_set_eq:NN \l__examzh_multifigures_column_int \l__examzh_multifigures_store_seq_item_int }
      {
        % 计算 \l__examzh_multifigures_store_seq_item_int mod \l__examzh_multifigures_column_int 的余数,用于补 &
        \int_set:Nn \l__examzh_multifigures_item_num_mod_column_left_int { \int_mod:nn { \l__examzh_multifigures_store_seq_item_int } { \l__examzh_multifigures_column_int } }
      }
  }
\cs_new:Npn \__examzh_multifigures_item:n #1
  {
    % 增加指标(g 是关键)
    \int_gincr:N \l__examzh_multifigures_item_index_int
    % 新建 coffin
    \__examzh_multifigures_item_new_coffin:
    % 储存 label(一直出不来的原因是因为没改成 gset)
    \hcoffin_gset:cn { l__examzh_multifigures_label_ \int_to_roman:n { \l__examzh_multifigures_item_index_int } _coffin } {#1}
    % 储存 figure
    \int_compare:nNnF { \l__examzh_multifigures_item_index_int } = {1}
      {
          \unskip
          \end{varwidth}
        % 结束上一个 item 的收集
        \hcoffin_set_end:
      }
    % 收集
    \hcoffin_set:cw { l__examzh_multifigures_figure_ \int_to_roman:n { \l__examzh_multifigures_item_index_int } _coffin }
      \begin{varwidth}{\hsize}
        \ignorespaces
  }

% 新建 coffin
\cs_new:Npn \__examzh_multifigures_item_new_coffin:
  {
    % 放图片的 coffin
    \coffin_if_exist:cF { l__examzh_multifigures_figure_ \int_to_roman:n { \l__examzh_multifigures_item_index_int } _coffin }
      { \coffin_new:c { l__examzh_multifigures_figure_ \int_to_roman:n { \l__examzh_multifigures_item_index_int } _coffin } }
    % 放 label 的 coffin
    \coffin_if_exist:cF { l__examzh_multifigures_label_ \int_to_roman:n { \l__examzh_multifigures_item_index_int } _coffin }
      { \coffin_new:c { l__examzh_multifigures_label_ \int_to_roman:n { \l__examzh_multifigures_item_index_int } _coffin } }
  }



%% \textfigure 


\coffin_new:N \l__examzh_textfigure_text_coffin        % 用于存文本
\coffin_new:N \l__examzh_textfigure_figure_coffin         % 用于存图片

\str_new:N \l__examzh_textfigure_current_figure_position_str    % 用来存当前的 anchor值

\fp_new:N \l__examzh_textfigure_text_ratio_fp              % 文本的比例

\dim_new:N \l__examzh_textfigure_text_width_dim            % 文本的宽度
\dim_new:N \l__examzh_textfigure_text_coffin_width_dim     % 文本c offin 的宽度
\dim_new:N \l__examzh_textfigure_figure_width_dim      % 图片的 varwidth 环境的宽度

% 用于 top-center, top-right, bottom-center, bottom-right 的水平偏移量储存
\dim_new:N \l__examzh_textfigure_figure_coffin_horizontal_transform_dim
\dim_new:N \l__examzh_textfigure_tmpa_dim              % 临时变量

\skip_new:N \l__examzh_textfigure_tmpa_skip            % 临时变量


\keys_define:nn { exam-zh }
  {
    textfigure  .meta:nn = { exam-zh / textfigure } {#1}
  }

\keys_define:nn { exam-zh / textfigure }
  {
    % fig-pos为图片位于文本的方位
    fig-pos .choices:nn =
      { 
        left , right , top , bottom ,
        top-left , top-right , top-center ,
        top-flushright , bottom-flushright , 
        bottom-left , bottom-right , bottom-center ,
        right-top , right-bottom , right-center ,
        left-top , left-bottom , left-center
      }
      {
        \str_set:NV \l__examzh_textfigure_current_figure_position_str \l_keys_choice_tl
      },
    % figure-yshift:调整图片的垂直额外偏移量
    figure-yshift .dim_set:N = \l__examzh_textfigure_figure_yshift_dim,
    figure-vshift .dim_set:N = \l__examzh_textfigure_figure_yshift_dim,
    % figure-xshift:调整图片的水平额外偏移量
    figure-xshift .dim_set:N = \l__examzh_textfigure_figure_xshift_dim,
    figure-hshift .dim_set:N = \l__examzh_textfigure_figure_xshift_dim,
    % yshift:调整整体的垂直额外偏移量
    yshift .dim_set:N = \l__examzh_textfigure_yshift_dim,
    vshift .dim_set:N = \l__examzh_textfigure_yshift_dim,
    % xshift:调整整体的水平额外偏移量
    xshift .dim_set:N = \l__examzh_textfigure_xshift_dim,
    hshift .dim_set:N = \l__examzh_textfigure_xshift_dim,
    % text-width:手动设置文本的 varwidth 环境的宽度
    text-width .dim_set:N = \l__examzh_textfigure_text_width_dim,
    % figure-width:手动设置 figure 的 varwidth 环境的宽度
    figure-width .dim_set:N = \l__examzh_textfigure_figure_width_dim,
    % ratio / text-ratio:文本 coffin 占行宽的比例,范围0-1
    ratio .fp_set:N = \l__examzh_textfigure_text_ratio_fp,
    text-ratio .fp_set:N = \l__examzh_textfigure_text_ratio_fp,
    % 环境上方的额外距离
    top-sep .skip_set:N = \l__examzh_textfigure_top_sep_skip,
    % 环境下方的额外距离
    bottom-sep .skip_set:N = \l__examzh_textfigure_bottom_sep_skip,
    % 类似于 wrapstuff 的 top
    top .int_set:N = \l__examzh_textfigure_top_int
  }

\keys_set:nn { exam-zh / textfigure }
  {
    fig-pos         = right,
    yshift          = .5\baselineskip,
    text-width      = \columnwidth,
    figure-width    = \columnwidth,
    text-ratio      = 0.95,
    top-sep         = 0pt,
    bottom-sep      = 1.5ex plus .5ex minus 0.5ex,
    top             = 0
  }


% 【已解决】判断anchor是不是west或者east,是的话就自动调整调整一下text-ratio
% - 问题在于要知道key-val设置了什么anchor才能判断
% - 但是这个key-val设置和手动设置ratio是同一接口
% - 理想是:
%   - 先用户设置anchor
%   - 然后自动判断是否是west或者east,并自动调整ratio
%    【思考】其实也就是说anchor的时候要判断是否是east和west来设置ratio(关键)
%   - 然后用户手动的话以手动的为准
% 【解决关键】既然不可能中途处理,那只能在 key-val 设置的时候就要处理掉这个自动的ratio,所以重新设计了anchor键值代码

\NewDocumentCommand{ \textfigure }{ O{} +m +m }
  {
    \group_begin:
      \keys_set:nn { exam-zh / textfigure } {#1}
      \par 
      \vspace*{ \l__examzh_textfigure_top_sep_skip }
      \noindent
      \__examzh_textfigure_output:nn {#2} {#3}
      \vspace*{ \l__examzh_textfigure_bottom_sep_skip }
    \group_end:
  }


% 最终的拼接命令
\cs_new:Npn \__examzh_textfigure_output:nn #1#2
  {
    \__examzh_textfigure_text_width_dim_set:
    % issue:https://gitee.com/xkwxdyy/text-figure/issues/I4RVQX
    % 关键点在于要离开垂直模式
    % https://ask.latexstudio.net/ask/question/7238.html
    \mode_leave_vertical:
    % 将内容存到 coffin 中
    \__examzh_textfigure_coffin_store:nn {#1}{#2}
    % coffin 的拼接
    \__examzh_textfigure_coffin_join:
    % coffin 的 typeset
    \__examzh_textfigure_coffin_typeset:
  }
\cs_new:Npn \__examzh_textfigure_text_width_dim_set:
  {
    % \str_case:VnT \l__examzh_textfigure_current_figure_position_str 
    %   {
    %     {bottom-flushright} {}
    %     {bottom-left} {}
    %     {bottom-right} {}
    %     {bottom-center} {}
    %   }
    %   { \fp_set:Nn \l__examzh_textfigure_text_ratio_fp {1} }
    % \fp_compare:nNnF { \l__examzh_textfigure_text_ratio_fp } = { 1 }
    %   {
    %     \str_case:VnT \l__examzh_textfigure_current_figure_position_str 
    %       {
    %         {left} {}
    %         {right} {}
    %         {left-center} {}
    %         {right-center} {}
    %         {right-top} {}
    %         {right-bottom} {}
    %         {left-top} {}
    %         {left-bottom} {}
    %       }
    %       { \fp_set:Nn \l__examzh_textfigure_text_ratio_fp {0.7} }
    %   }
    \dim_set_eq:NN \l__examzh_textfigure_tmpa_dim  \l__examzh_textfigure_text_width_dim
    \dim_set:Nn \l__examzh_textfigure_text_width_dim
      {
        \l__examzh_textfigure_tmpa_dim * \dim_ratio:nn { \fp_use:N \l__examzh_textfigure_text_ratio_fp pt } { 1 pt }
      }
  }
\cs_new:Npn \__examzh_textfigure_coffin_store:nn #1#2
  {
    \hcoffin_set:Nn \l__examzh_textfigure_text_coffin 
      {
        \begin{varwidth}{ \l__examzh_textfigure_text_width_dim }
          \dim_set:Nn \parindent {2em}
          \ignorespaces
          #1
          \unskip
        \end{varwidth}
      }
    \hcoffin_set:Nn \l__examzh_textfigure_figure_coffin 
      {
        \begin{varwidth}{ \l__examzh_textfigure_figure_width_dim }
          \centering
          \ignorespaces
          #2
          \unskip
        \end{varwidth}
      }
  }
\cs_new:Npn \__examzh_textfigure_coffin_join:
  {
    \use:c { __examzh_textfigure_fig_pos_set_ \l__examzh_textfigure_current_figure_position_str :NN }
      \l__examzh_textfigure_text_coffin
      \l__examzh_textfigure_figure_coffin
  }
\cs_new:Npn \__examzh_textfigure_coffin_typeset:
  {
    \coffin_typeset:Nnnnn \l__examzh_textfigure_text_coffin
      { l } { t } 
      { \l__examzh_textfigure_xshift_dim } 
      { \l__examzh_textfigure_yshift_dim }
  }

% top表示位于文本正上方
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_top:NN } #1#2
  {
    \coffin_join:NnnNnnnn
      #1 { t } { hc }
      #2 { b } { hc }
      { \l__examzh_textfigure_figure_xshift_dim } 
      { 1em + \l__examzh_textfigure_figure_yshift_dim }
  }
% top-center表示位于文本上方,但是处于水平的中线处
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_top-center:NN } #1#2
  {
    \dim_set:Nn \l__examzh_textfigure_tmpa_dim 
      { \coffin_wd:N #1 }
    \dim_set:Nn \l__examzh_textfigure_figure_coffin_horizontal_transform_dim
      {
        \linewidth * \dim_ratio:nn { 1 pt } { 2 pt } 
        - 
        \l__examzh_textfigure_tmpa_dim * \dim_ratio:nn { 1 pt } { 2 pt } 
      }
    \coffin_join:NnnNnnnn
      #1 { t } { hc }
      #2 { b } { hc }
      { \l__examzh_textfigure_figure_coffin_horizontal_transform_dim + \l__examzh_textfigure_figure_xshift_dim } 
      { 1em + \l__examzh_textfigure_figure_yshift_dim }
  }
% bottom-center表示位于文本下方,但是处于水平的中线处
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_bottom-center:NN } #1#2
  {
    \dim_set:Nn \l__examzh_textfigure_tmpa_dim 
      { \coffin_wd:N #1 }
    \dim_set:Nn \l__examzh_textfigure_figure_coffin_horizontal_transform_dim
      {
        \linewidth * \dim_ratio:nn { 1 pt } { 2 pt } 
        - 
        \l__examzh_textfigure_tmpa_dim * \dim_ratio:nn { 1 pt } { 2 pt } 
      }
    \coffin_join:NnnNnnnn
      #1 { b } { hc }
      #2 { t } { hc }
      { \l__examzh_textfigure_figure_coffin_horizontal_transform_dim + \l__examzh_textfigure_figure_xshift_dim }
      { -1em + \l__examzh_textfigure_figure_yshift_dim }
  }
% bottom 表示位于文本正下方
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_bottom:NN } #1#2
  {
    \coffin_join:NnnNnnnn
      #1 { b } { hc }
      #2 { t } { hc }
      { \l__examzh_textfigure_figure_xshift_dim }
      { -1em + \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_left:NN } #1#2
  {
    \coffin_join:NnnNnnnn
      #1 { vc } { l }
      #2 { vc } { r }
      { -1em + \l__examzh_textfigure_figure_xshift_dim }
      { \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_set_eq:cc { __examzh_textfigure_fig_pos_set_left-center:NN } { __examzh_textfigure_fig_pos_set_left:NN }
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_left-top:NN } #1#2
  {
    \dim_set:Nn \l__examzh_textfigure_tmpa_dim
      { \baselineskip * \dim_ratio:nn { \int_use:N \l__examzh_textfigure_top_int pt } { 1pt } }
    \coffin_join:NnnNnnnn
      #1 { t } { l }
      #2 { t } { r }
      { -1em + \l__examzh_textfigure_figure_xshift_dim }
      { - \l__examzh_textfigure_tmpa_dim + \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_left-bottom:NN } #1#2
  {
    \coffin_join:NnnNnnnn
      #1 { b } { l }
      #2 { b } { r }
      { -1em + \l__examzh_textfigure_figure_xshift_dim } 
      { 0pt + \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_right-top:NN } #1#2
  {
    \dim_set:Nn \l__examzh_textfigure_tmpa_dim
      { \baselineskip * \dim_ratio:nn { \int_use:N \l__examzh_textfigure_top_int pt } { 1pt } }
    \coffin_join:NnnNnnnn
      #1 { t } { r }
      #2 { t } { l }
      { 1em + \l__examzh_textfigure_figure_xshift_dim }
      { - \l__examzh_textfigure_tmpa_dim + \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_right-center:NN } #1#2
  {
    \coffin_join:NnnNnnnn
      #1 { vc } { r }
      #2 { vc } { l }
      { 1em + \l__examzh_textfigure_figure_xshift_dim } 
      { 0pt + \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_right-bottom:NN } #1#2
  {
    \coffin_join:NnnNnnnn
      #1 { b } { r }
      #2 { b } { l }
      { 1em + \l__examzh_textfigure_figure_xshift_dim }
      { 0pt + \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_set_eq:cc { __examzh_textfigure_fig_pos_set_right:NN } { __examzh_textfigure_fig_pos_set_right-center:NN }
% top-flushright:文本上方,水平方向是在行尾
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_top-flushright:NN } #1#2
  {
    \dim_set:Nn \l__examzh_textfigure_tmpa_dim 
      { \coffin_wd:N #1 }
    \dim_set:Nn \l__examzh_textfigure_figure_coffin_horizontal_transform_dim
      { \linewidth - \l__examzh_textfigure_tmpa_dim }
    \coffin_join:NnnNnnnn
      #1 { t } { r }
      #2 { b } { r }
      { \l__examzh_textfigure_figure_coffin_horizontal_transform_dim  + \l__examzh_textfigure_figure_xshift_dim }
      { 1em + \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_top-right:NN } #1#2
  {
    \coffin_join:NnnNnnnn
      #1 { t } { r }
      #2 { b } { r }
      { \l__examzh_textfigure_figure_xshift_dim }
      { 1em + \l__examzh_textfigure_figure_yshift_dim }
  }
% bottom-flushright:文本下方,水平方向在行尾
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_bottom-flushright:NN } #1#2
  {
    \dim_set:Nn \l__examzh_textfigure_tmpa_dim 
      { \coffin_wd:N #1 }
    \dim_set:Nn \l__examzh_textfigure_figure_coffin_horizontal_transform_dim
      { \linewidth - \l__examzh_textfigure_tmpa_dim  }
    \coffin_join:NnnNnnnn
      #1 { b } { r }
      #2 { t } { r }
      { \l__examzh_textfigure_figure_coffin_horizontal_transform_dim + \l__examzh_textfigure_figure_xshift_dim }
      { -1em + \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_bottom-right:NN } #1#2
  {
    \coffin_join:NnnNnnnn
      #1 { b } { r }
      #2 { t } { r }
      { \l__examzh_textfigure_figure_xshift_dim }
      { -1em + \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_top-left:NN } #1#2
  {
    \coffin_join:NnnNnnnn
      #1 { t } { l }
      #2 { b } { l }
      { 0pt + \l__examzh_textfigure_figure_xshift_dim }
      { 1em + \l__examzh_textfigure_figure_yshift_dim }
  }
\cs_new_protected:cpn { __examzh_textfigure_fig_pos_set_bottom-left:NN } #1#2
  {
    \coffin_join:NnnNnnnn
      #1 { b } { l }
      #2 { t } { l }
      { 0pt + \l__examzh_textfigure_figure_xshift_dim }
      { -1em + \l__examzh_textfigure_figure_yshift_dim }
  }