summaryrefslogtreecommitdiff
path: root/biblio/bibtex/contrib/gbt7714/gbt7714.dtx
blob: d3e4ff98a64a43531a413f7ca240dd9d0c291e52 (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
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
% \iffalse meta-comment
% GB/T 7714 BibTeX Style
% https://github.com/zepinglee/gbt7714-bibtex-style
%
% Copyright (C) 2016--2022 by Zeping Lee <zepinglee AT gmail.com>
%
% This file may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3c
% of this license or (at your option) any later version.
% The latest version of this license is in
%    https://www.latex-project.org/lppl.txt
% and version 1.3c or later is part of all distributions of LaTeX
% version 2008 or later.
%
% \fi
%
% \iffalse
%<package>\NeedsTeXFormat{LaTeX2e}[1999/12/01]
%<package>\ProvidesPackage{gbt7714}
%<package>  [2022/10/03 v2.1.5 GB/T 7714 BibTeX Style]
%
%<*driver>
\documentclass[a4paper]{l3doc}
\usepackage{hypdoc}
\usepackage[UTF8]{ctex}
\usepackage{caption}
\usepackage{booktabs}
\usepackage{gbt7714}
\usepackage{hologo}
\usepackage{listings}
\makeatletter
\hypersetup{allcolors=blue}
\IfFileExists{/System/Library/Fonts/Times.ttc}{
  \setmainfont{Times}
  \setsansfont[Scale=MatchLowercase]{Helvetica}
  \setmonofont[Scale=MatchLowercase]{Menlo}
}{}
\citestyle{super}
\lstnewenvironment{latex}{%
  \lstset{
    basicstyle = \ttfamily\small,
    language = [LaTeX]TeX,
    gobble = 4,
    frame = single,
  }%
}{}
\lstnewenvironment{pseudocode}{%
  \lstset{
    basicstyle=\ttfamily\small,
    language=bash,
    gobble=2,
    frame=single,
  }%
}{}
\DeclareRobustCommand\file{\nolinkurl}
\DeclareRobustCommand\env{\texttt}
\DeclareRobustCommand\pkg{\textsf}
\DeclareRobustCommand\cls{\textsf}
\DeclareRobustCommand\opt{\texttt}
\setlength\partopsep{\z@}
\def\@listi{\leftmargin\leftmargini
            \parsep \z@
            \topsep 5\p@ \@plus2\p@ \@minus3\p@
        \itemsep\z@}
\let\@listI\@listi
\@listi
\makeatother
\EnableCrossrefs
\CodelineIndex
% \OnlyDescription

\begin{document}
  \DocInput{\jobname.dtx}
\end{document}
%</driver>
% \fi
%
%
%
% \GetFileInfo{gbt7714.sty}
%
% \title{GB/T 7714 \hologo{BibTeX} style}
% \author{Zeping Lee\thanks{zepinglee AT gmail.com}}
% \date{\filedate\qquad\fileversion}
% \maketitle
%
%
%
% \begin{abstract}
% The \pkg{gbt7714} package provides a \BibTeX{} implementation for the China's
% national bibliography style standard GB/T 7714.
% It consists of \file{.bst} files for numeric and author-date styles as well as a
% \LaTeX{} package which provides the citation style defined in the standard.
% It is compatible with \pkg{natbib} and supports language detection (Chinese
% and English) for each biblilography entry.
% \end{abstract}
%
% \section{简介}
%
% GB/T 7714—2015 《信息与文献\quad 参考文献著录规则》\cite{gbt7714-2015}
% (以下简称“国标”)是中国的参考文献格式推荐标准。
% 国内的绝大部分学术期刊、学位论文都使用了基于该标准的格式。
% 本宏包是国标的 \BibTeX{}\cite{bibtex} 实现,具有以下特性:
% \begin{itemize}
%   \item 兼容 \pkg{natbib} 宏包\cite{natbib}。
%   \item 支持“顺序编码制”和“著者-出版年制”两种风格。
%   \item 自动识别语言并进行相应处理。
%   \item 提供了简单的接口供用户修改样式。
%   \item 同时提供了 2005 版的 \file{.bst} 文件。
% \end{itemize}
% 本宏包的主页:\url{https://github.com/zepinglee/gbt7714-bibtex-style}。
%
%
% \section{版本 v2.0 的重要修改}
%
% 从 v2.0 版本开始(2020-03-04),用户必须在文档中使用 \cs{biblilographystyle} 命令选择参考文献样式,
% 如 \opt{gbt7714-numerical} 或 \opt{gbt7714-author-year}。
% 在早期的版本中,选择文献样式的方法是将 \opt{numbers} 或 \opt{super} 等参数传递给
% \pkg{gbt7714},
% 而不能使用 \cs{bibliographystyle}。
% 这跟标准的 LaTeX 接口不一致,所以将被弃用。
%
%
% \section{使用方法}
%
% 以下是 \pkg{gbt7714} 宏包的一个简单示例。
% \begin{latex}
%   \documentclass{ctexart}
%   \usepackage{gbt7714}
%   \bibliographystyle{gbt7714-numerical}
%   \begin{document}
%     \cite{...}
%     ...
%     \bibliography{bibfile}
%   \end{document}
% \end{latex}
%
% 按照国标的规定,参考文献的标注体系分为“顺序编码制”和
% “著者-出版年制”。
% 用户应在导言区调用宏包 \pkg{gbt7714},并且使用 \cs{bibliographystyle}
% 命令选择参考文献表的样式,比如:
% \begin{latex}
%   \bibliographystyle{gbt7714-numerical}  % 顺序编码制
% \end{latex}
% 或者
% \begin{latex}
%   \bibliographystyle{gbt7714-author-year}  % 著者-出版年制
% \end{latex}
% 此外还可以使用 2005 版的格式 \file{gbt7714-2005-numerical} 和
% \file{gbt7714-2005-author-year}。
%
% 注意,版本 v2.0 更改了设置参考文献表样式的方法,
% 要求直接使用 \cs{bibliographystyle},不再使用宏包的参数,
% 而且更改了 \file{bst} 的文件名。
%
% \begin{function}{\citestyle}
%   \begin{syntax}
%     |\citestyle|\Arg{citation style}
%   \end{syntax}
% 可选:\opt{super}, \opt{numbers}, \opt{author-year}。
% 使用 \cs{bibliography} 选择参考文献表的样式时会自动设置对应的引用样式。
% 顺序编码制的引用标注默认使用角标式(\opt{super}),
% 如“张三\textsuperscript{[2]}提出”。
% 如果要使用正文模式,如“文献 [3] 中说明”,
% 可以使用 \cs{citestyle} 命令切换为数字式(\opt{numbers})。
% \begin{latex}
%   \citestyle{numbers}
% \end{latex}
% 著者-出版年制通常不需要修改引用样式。
% \end{function}
%
% \DescribeEnv{sort\&compress}
% 同一处引用多篇文献时,应当将各篇文献的 key 一同写在 \cs{cite} 命令中。
% 如遇连续编号,默认会自动转为起讫序号并用短横线连接
% (见\pkg{natbib} 的 \opt{compress} 选项)。
% 如果要对引用的编号进行自动排序,需要在调用 \pkg{gbt7714} 时加
% \opt{sort\&compress} 参数,
% 这些参数会传给 \pkg{natbib} 处理。
% \begin{latex}
%   \usepackage[sort&compress]{gbt7714}
% \end{latex}
% 注意国标中要求 2 个或以上的连续编号用连接号,不同于 \pkg{natbib} 默认的 3 个或以上。
% 宏包中已经作了修改。
%
% 若需要标出引文的页码,可以标在 \cs{cite} 的可选参数中,如
% |\cite[42]{knuth84}|。
% 更多的引用标注方法可以参考 \pkg{natbib} 宏包的使用说明\cite{natbib}。
%
% 使用时需要注意以下几点:
% \begin{itemize}
%   \item \file{.bib} 数据库应使用 UTF-8 编码。
%   \item 使用著者-出版年制参考文献表时,中文的文献\emph{必须}
%         在 key 域填写作者姓名的拼音,才能按照拼音排序,
%         详见第~\ref{sec:sort}~节。
% \end{itemize}
%
%
% \section{文献类型}
%
% 国标中规定了 16 种参考文献类型,
% 表~\ref{tab:entry-types} 列举了 \file{bib} 数据库中对应的文献类型。
% 这些尽可能兼容 \BibTeX{} 和 \pkg{biblatex} 的标准类型,但是新增了若干文献类型(带 * 号)。
%
% \begin{table}[htb]
%   \centering\small
%   \caption{全部文献类型}
%   \label{tab:entry-types}
%   \begin{tabular}{lcl}
%     \toprule
%     文献类型         & 标识代码 & Entry Type                  \\
%     \midrule
%     普通图书         & M        & book                        \\
%     图书的析出文献   & M        & incollection                \\
%     会议录           & C        & proceedings                 \\
%     会议录的析出文献 & C        & inproceedings 或 conference \\
%     汇编             & G        & collection*                 \\
%     报纸             & N        & newspaper*                  \\
%     期刊的析出文献   & J        & article                     \\
%     学位论文         & D        & mastersthesis 或 phdthesis  \\
%     报告             & R        & techreport                  \\
%     标准             & S        & standard*                   \\
%     专利             & P        & patent*                     \\
%     数据库           & DB       & database*                   \\
%     计算机程序       & CP       & software*                   \\
%     电子公告         & EB       & online*                     \\
%     档案             & A        & archive*                    \\
%     舆图             & CM       & map*                        \\
%     数据集           & DS       & dataset*                    \\
%     其他             & Z        & misc                        \\
%     \bottomrule
%   \end{tabular}
% \end{table}
%
%
% \section{著录项目}
%
% 由于国标中规定的著录项目多于 \BibTeX{} 的标准域,
% 必须新增一些著录项目(带 * 号),
% 这些新增的类型在设计时参考了 BibLaTeX,如 date 和 urldate。
% 本宏包支持的全部域如下:
% \begin{description}
%   \item[author]       主要责任者
%   \item[title]        题名
%   \item[mark*]        文献类型标识
%   \item[medium*]      载体类型标识
%   \item[translator*]  译者
%   \item[editor]       编辑
%   \item[organization] 组织(用于会议)
%   \item[booktitle]    图书题名
%   \item[series]       系列
%   \item[journal]      期刊题名
%   \item[edition]      版本
%   \item[address]      出版地
%   \item[publisher]    出版者
%   \item[school]       学校(用于 \texttt{@phdthesis})
%   \item[institution]  机构(用于 \texttt{@techreport})
%   \item[year]         出版年
%   \item[volume]       卷
%   \item[number]       期(或者专利号)
%   \item[pages]        引文页码
%   \item[date*]        更新或修改日期
%   \item[urldate*]     引用日期
%   \item[url]          获取和访问路径
%   \item[doi]          数字对象唯一标识符
%   \item[langid*]      语言
%   \item[key]          拼音(用于排序)
% \end{description}
% 不支持的 \BibTeX{} 标准著录项目有 annote, chapter, crossref, month, type。
%
% 本宏包默认情况下可以自动识别文献语言,并自动处理文献类型和载体类型标识,
% 但是在少数情况下需要用户手动指定,如:
% \begin{latex}
%   @misc{citekey,
%     langid = {japanese},
%     mark   = {Z},
%     medium = {DK},
%     ...
%   }
% \end{latex}
% 可选的语言有 english, chinese, japanese, russian。
%
%
% \section{文献列表的排序}
% \label{sec:sort}
%
% 国标规定参考文献表采用著者-出版年制组织时,各篇文献首先按文种集中,
% 然后按著者字顺和出版年排列;
% 中文文献可以按著者汉语拼音字顺排列,也可以按著者的笔画笔顺排列。
% 然而由于 \BibTeX{} 功能的局限性,无法自动获取著者姓名的拼音或笔画笔顺,
% 所以\emph{必须}在 bib 数据库中的 key 域手动录入著者姓名的拼音用于排序,如:
% \begin{latex}
%   @book{capital,
%     author = {马克思 and 恩格斯},
%     key    = {ma3 ke4 si1 & en1 ge2 si1},
%     ...
%   }
% \end{latex}
%
% 对于著者-出版年的样式,如果中文文献较多时更推荐使用 \pkg{biblatex} 宏包,
% 其后端 \file{biber} 可以自动处理中文按照拼音排序,无须手动填写拼音。
%
%
% \section{自定义样式}
%
% \BibTeX{} 对自定义样式的支持比较有限,
% 所以用户只能通过修改 \file{bst} 文件来修改文献列表的格式。
% 本宏包提供了一些接口供用户更方便地修改。
%
% 在 \file{bst} 文件开始处的 |load.config| 函数中,
% 有一组配置参数用来控制样式,表~\ref{tab:config} 列出了每一项的默认值和功能。
% 若变量被设为 |#1| 则表示该项被启用,设为 |#0| 则不启用。
% 默认的值是严格遵循国标的配置。
%
% \begin{table}[htb]
% \centering\small
% \caption{参考文献表样式的配置参数}
% \label{tab:config}
% \begin{tabular}{lcl}
%   \toprule
%   参数值                         & 默认值 & 功能                           \\
%   \midrule
%   uppercase.name                 & |#1|   & 将著者姓名转为大写             \\
%   max.num.authors                & |#3|   & 输出著者的最多数量             \\
%   year.after.author              & |#0|   & 年份置于著者之后               \\
%   period.after.author            & |#0|   & 著者和年份之间使用句点连接     \\
%   italic.book.title              & |#0|   & 西文书籍名使用斜体             \\
%   sentence.case.title            & |#1|   & 将西文的题名转为 sentence case \\
%   link.title                     & |#0|   & 在题名上添加 url 的超链接      \\
%   title.in.journal               & |#1|   & 期刊是否显示标题               \\
%   show.patent.country            & |#0|   & 专利题名是否含国别             \\
%   space.before.mark              & |#0|   & 文献类型标识前是否有空格       \\
%   show.mark                      & |#1|   & 显示文献类型标识               \\
%   show.medium.type               & |#1|   & 显示载体类型标识               \\
%   component.part.label           & |"slash"| & 表示析出文献的符号,可选:|"in"|, |"none"| \\
%   italic.journal                 & |#0|   & 西文期刊名使用斜体             \\
%   show.missing.address.publisher & |#0|   & 出版项缺失时显示“出版者不详”   \\
%   space.before.pages             & |#1|   & 页码与前面的冒号之间有空格     \\
%   only.start.page                & |#0|   & 只显示起始页码                 \\
%   wave.dash.in.pages             & |#0|   & 起止页码使用波浪号             \\
%   show.urldate                   & |#1|   & 显示引用日期 urldate           \\
%   show.url                       & |#1|   & 显示 url                       \\
%   show.doi                       & |#1|   & 显示 DOI                       \\
%   show.preprint                  & |#1|   & 显示预印本信息                 \\
%   show.note                      & |#0|   & 显示 note 域的信息             \\
%   end.with.period                & |#1|   & 结尾加句点                     \\
%   \bottomrule
% \end{tabular}
% \end{table}
%
% 若用户需要定制更多内容,可以学习 \file{bst} 文件的语法并修改
% \cite{btxhak,ttb,tlc2},或者联系作者。
%
%
% \section{相关工作}
%
% TeX 社区也有其他关于 GB/T 7714 系列参考文献标准的工作。
% 2005 年吴凯\cite{wk2006}发布了基于 GB/T 7714—2005 的 \BibTeX{} 样式,
% 支持顺序编码制和著者出版年制两种风格。
% 李志奇\cite{lqz2013}发布了严格遵循 GB/T 7714—2005 的 BibLaTeX 的样式。
% 胡海星\cite{hhx2013}提供了另一个 \BibTeX{} 实现,
% 还给每行 bst 代码写了 java 语言注释。
% 沈周\cite{sz2016}基于 \pkg{biblatex-caspervector}\cite{vector2012} 进行修改,
% 以符合国标的格式。
% 胡振震发布了符合 GB/T 7714—2015 标准的 BibLaTeX 参考文献样式\cite{hzz2016},
% 并进行了比较完善的持续维护。
%
%
% \begin{thebibliography}{12}
% \providecommand{\natexlab}[1]{#1}
% \providecommand{\url}[1]{#1}
% \expandafter\ifx\csname urlstyle\endcsname\relax\relax\else
%   \urlstyle{same}\fi
% \providecommand{\href}[2]{\url{#2}}
% \providecommand{\doi}[1]{\href{https://doi.org/#1}{#1}}
%
% \bibitem[{中国国家标准化委员会}(2015)]{gbt7714-2015}
% {中国国家标准化委员会}.
% \newblock 信息与文献\quad 参考文献著录规则: GB/T
%   7714—2015[S].
% \newblock 北京: 中国标准出版社, 2015.
%
% \bibitem[Patashnik(1988{\natexlab{a}})]{bibtex}
% PATASHNIK~O.
% \newblock {\BibTeX}ing[M/OL].
% \newblock 1988{\natexlab{a}}.
% \newblock \url{http://mirrors.ctan.org/biblio/bibtex/base/btxdoc.pdf}.
%
% \bibitem[Daly(1999)]{natbib}
% DALY~P~W.
% \newblock Natural sciences citations and references[M/OL].
% \newblock 1999.
% \newblock \url{http://mirrors.ctan.org/macros/latex/contrib/natbib/natbib.pdf}.
%
% \bibitem[Patashnik(1988{\natexlab{b}})]{btxhak}
% PATASHNIK~O.
% \newblock Designing {\BibTeX} styles[M/OL].
% \newblock 1988{\natexlab{b}}.
% \newblock \url{http://mirrors.ctan.org/biblio/bibtex/base/btxhak.pdf}.
%
% \bibitem[Markey(2003)]{ttb}
% MARKEY~N.
% \newblock Tame the beast[M/OL].
% \newblock 2003.
% \newblock \url{http://mirrors.ctan.org/info/bibtex/tamethebeast/ttb_en.pdf}.
%
% \bibitem[Mittelbach et~al.(2004)Mittelbach, Goossens, Braams, Carlisle, and
%   Rowley]{tlc2}
% MITTELBACH~F, GOOSSENS~M, BRAAMS~J, et~al.
% \newblock The {\LaTeX} companion[M].
% \newblock 2nd ed.
% \newblock Reading, MA, USA: Addison-Wesley, 2004.
%
% \bibitem[吴凯(2006)]{wk2006}
% 吴凯.
% \newblock 发布GBT7714-2005.bst version1 Beta版[EB/OL].
% \newblock 2006.
% \newblock CTeX 论坛(已关闭).
%
% \bibitem[李志奇(2013)]{lqz2013}
% 李志奇.
% \newblock
%   基于biblatex的符合GBT7714—2005的中文文献生成工具[EB/OL].
% \newblock 2013.
% \newblock CTeX 论坛(已关闭).
%
% \bibitem[胡海星(2013)]{hhx2013}
% 胡海星.
% \newblock A GB/T 7714—2005 national standard compliant BibTeX
%   style[EB/OL].
% \newblock 2013.
% \newblock \url{https://github.com/Haixing-Hu/GBT7714-2005-BibTeX-Style}.
%
% \bibitem[沈周(2016)]{sz2016}
% 沈周.
% \newblock 基于caspervector改写的符合GB/T
%   7714—2005标准的参考文献格式[EB/OL].
% \newblock 2016.
% \newblock \url{https://github.com/szsdk/biblatex-gbt77142005}.
%
% \bibitem[Vector(2012)]{vector2012}
% VECTOR~C~T.
% \newblock biblatex 参考文献和引用样式: caspervector[M/OL].
% \newblock 2012.
% \newblock
%   \url{http://mirrors.ctan.org/macros/latex/contrib/biblatex-contrib/biblatex-caspervector/doc/caspervector.pdf}.
%
% \bibitem[胡振震(2016)]{hzz2016}
% 胡振震.
% \newblock 符合 GB/T 7714—2015 标准的 biblatex
%   参考文献样式[M/OL].
% \newblock 2016.
% \newblock
%   \url{http://mirrors.ctan.org/macros/latex/contrib/biblatex-contrib/biblatex-gb7714-2015/biblatex-gb7714-2015.pdf}.
%
% \end{thebibliography}
%
%
%
%
% \clearpage
% \appendix
% \StopEventually{}
%
% \section{宏包的代码实现}
%
% 兼容过时的接口
%    \begin{macrocode}
%<*package>
\newif\ifgbt@legacy@interface
\newif\ifgbt@mmxv
\newif\ifgbt@numerical
\newif\ifgbt@super
\newcommand\gbt@obsolete@option[1]{%
  \PackageWarning{gbt7714}{The option "#1" is obsolete}%
}
\DeclareOption{2015}{%
  \gbt@obsolete@option{2015}%
  \gbt@legacy@interfacetrue
  \gbt@mmxvtrue
}
\DeclareOption{2005}{%
  \gbt@obsolete@option{2005}%
  \gbt@legacy@interfacetrue
  \gbt@mmxvfalse
}
\DeclareOption{super}{%
  \gbt@obsolete@option{super}%
  \gbt@legacy@interfacetrue
  \gbt@numericaltrue
  \gbt@supertrue
}
\DeclareOption{numbers}{%
  \gbt@obsolete@option{numbers}%
  \gbt@legacy@interfacetrue
  \gbt@numericaltrue
  \gbt@superfalse
}
\DeclareOption{authoryear}{%
  \gbt@obsolete@option{authoryear}%
  \gbt@legacy@interfacetrue
  \gbt@numericalfalse
}
%    \end{macrocode}
%
% 将选项传递给 \pkg{natbib}
%    \begin{macrocode}
\DeclareOption*{\PassOptionsToPackage{\CurrentOption}{natbib}}
\ProcessOptions\relax
%    \end{macrocode}
%
% 调用宏包,注意只需要 \opt{compress} 不需要 \opt{sort}。
%    \begin{macrocode}
\RequirePackage{natbib}
\RequirePackage{url}
%    \end{macrocode}
%
% 如果将 \opt{compress} 传给 \pkg{natbib} 容易导致 option clash。
% 这里直接修改内部命令。
%    \begin{macrocode}
\def\NAT@cmprs{\@ne}
%    \end{macrocode}
%
% \begin{macro}{\citestyle}
% 定义接口切换引用文献的标注法,可用 \cs{citestyle} 调用 \opt{numerical}
% 或 \opt{authoryear},参见 \pkg{natbib}。
%    \begin{macrocode}
\renewcommand\newblock{\space}
\newcommand\bibstyle@super{\bibpunct{[}{]}{,}{s}{,}{\textsuperscript{,}}}
\newcommand\bibstyle@numbers{\bibpunct{[}{]}{,}{n}{,}{,}}
\newcommand\bibstyle@authoryear{\bibpunct{(}{)}{;}{a}{,}{,}}
\newcommand\bibstyle@inline{\bibstyle@numbers}
%    \end{macrocode}
% \end{macro}
%
% 在使用 \cs{bibliographystyle} 时自动切换引用文献的标注的样式。
%    \begin{macrocode}
\@namedef{bibstyle@gbt7714-numerical}{\bibstyle@super}
\@namedef{bibstyle@gbt7714-author-year}{\bibstyle@authoryear}
\@namedef{bibstyle@gbt7714-2005-numerical}{\bibstyle@super}
\@namedef{bibstyle@gbt7714-2005-author-year}{\bibstyle@authoryear}
%    \end{macrocode}
%
% \begin{macro}{\cite}
% 下面修改 \pkg{natbib} 的引用格式。
% 为了减少依赖的宏包,这里直接重定义命令不使用 \pkg{etoolbox} 的 \cs{patchcmd}。
%
% Super 样式的 \cs{citep} 的页码也为上标。
% 另外加上 |\kern\p@| 去掉上标式引用后与中文之间多余的空格,
% 参考 \href{https://github.com/tuna/thuthesis/issues/624}{tuna/thuthesis\#624}。
%    \begin{macrocode}
\renewcommand\NAT@citesuper[3]{%
  \ifNAT@swa
    \if*#2*\else
      #2\NAT@spacechar
    \fi
    % \unskip\kern\p@\textsuperscript{\NAT@@open#1\NAT@@close}%
    %  \if*#3*\else\NAT@spacechar#3\fi\else #1\fi\endgroup}
    \unskip\kern\p@
    \textsuperscript{%
      \NAT@@open
      #1%
      \NAT@@close
      \if*#3*\else
        #3%
      \fi
    }%
    \kern\p@
  \else
    #1%
  \fi
  \endgroup
}
%    \end{macrocode}
%
% 将 numbers 样式的 \cs{citep} 的页码置于括号外。
%    \begin{macrocode}
\renewcommand\NAT@citenum[3]{%
  \ifNAT@swa
    \NAT@@open
    \if*#2*\else
      #2\NAT@spacechar
    \fi
    % #1\if*#3*\else\NAT@cmt#3\fi\NAT@@close\else#1\fi\endgroup}
    #1\NAT@@close
    \if*#3*\else
      \textsuperscript{#3}%
    \fi
  \else
    #1%
  \fi
  \endgroup
}
%    \end{macrocode}
%
% Numerical 模式的 \cs{citet} 的页码:
%    \begin{macrocode}
\def\NAT@citexnum[#1][#2]#3{%
  \NAT@reset@parser
  \NAT@sort@cites{#3}%
  \NAT@reset@citea
  \@cite{\def\NAT@num{-1}\let\NAT@last@yr\relax\let\NAT@nm\@empty
    \@for\@citeb:=\NAT@cite@list\do
    {\@safe@activestrue
     \edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%
     \@safe@activesfalse
     \@ifundefined{b@\@citeb\@extra@b@citeb}{%
       {\reset@font\bfseries?}
        \NAT@citeundefined\PackageWarning{natbib}%
       {Citation `\@citeb' on page \thepage \space undefined}}%
     {\let\NAT@last@num\NAT@num\let\NAT@last@nm\NAT@nm
      \NAT@parse{\@citeb}%
      \ifNAT@longnames\@ifundefined{bv@\@citeb\@extra@b@citeb}{%
        \let\NAT@name=\NAT@all@names
        \global\@namedef{bv@\@citeb\@extra@b@citeb}{}}{}%
      \fi
      \ifNAT@full\let\NAT@nm\NAT@all@names\else
        \let\NAT@nm\NAT@name\fi
      \ifNAT@swa
       \@ifnum{\NAT@ctype>\@ne}{%
        \@citea
        \NAT@hyper@{\@ifnum{\NAT@ctype=\tw@}{\NAT@test{\NAT@ctype}}{\NAT@alias}}%
       }{%
        \@ifnum{\NAT@cmprs>\z@}{%
         \NAT@ifcat@num\NAT@num
          {\let\NAT@nm=\NAT@num}%
          {\def\NAT@nm{-2}}%
         \NAT@ifcat@num\NAT@last@num
          {\@tempcnta=\NAT@last@num\relax}%
          {\@tempcnta\m@ne}%
         \@ifnum{\NAT@nm=\@tempcnta}{%
          \@ifnum{\NAT@merge>\@ne}{}{\NAT@last@yr@mbox}%
         }{%
           \advance\@tempcnta by\@ne
           \@ifnum{\NAT@nm=\@tempcnta}{%
%    \end{macrocode}
%
% 在顺序编码制下,\pkg{natbib} 只有在三个以上连续文献引用才会使用连接号,
% 这里修改为允许两个引用使用连接号。
%    \begin{macrocode}
             % \ifx\NAT@last@yr\relax
             %   \def@NAT@last@yr{\@citea}%
             % \else
             %   \def@NAT@last@yr{--\NAT@penalty}%
             % \fi
             \def@NAT@last@yr{-\NAT@penalty}%
           }{%
             \NAT@last@yr@mbox
           }%
         }%
        }{%
         \@tempswatrue
         \@ifnum{\NAT@merge>\@ne}{\@ifnum{\NAT@last@num=\NAT@num\relax}{\@tempswafalse}{}}{}%
         \if@tempswa\NAT@citea@mbox\fi
        }%
       }%
       \NAT@def@citea
      \else
        \ifcase\NAT@ctype
          \ifx\NAT@last@nm\NAT@nm \NAT@yrsep\NAT@penalty\NAT@space\else
            \@citea \NAT@test{\@ne}\NAT@spacechar\NAT@mbox{\NAT@super@kern\NAT@@open}%
          \fi
          \if*#1*\else#1\NAT@spacechar\fi
          \NAT@mbox{\NAT@hyper@{{\citenumfont{\NAT@num}}}}%
          \NAT@def@citea@box
        \or
          \NAT@hyper@citea@space{\NAT@test{\NAT@ctype}}%
        \or
          \NAT@hyper@citea@space{\NAT@test{\NAT@ctype}}%
        \or
          \NAT@hyper@citea@space\NAT@alias
        \fi
      \fi
     }%
    }%
      \@ifnum{\NAT@cmprs>\z@}{\NAT@last@yr}{}%
      \ifNAT@swa\else
%    \end{macrocode}
%
% 将页码放在括号外边,并且置于上标。
%    \begin{macrocode}
        % \@ifnum{\NAT@ctype=\z@}{%
        %   \if*#2*\else\NAT@cmt#2\fi
        % }{}%
        \NAT@mbox{\NAT@@close}%
        \@ifnum{\NAT@ctype=\z@}{%
          \if*#2*\else
            \textsuperscript{#2}%
          \fi
        }{}%
        \NAT@super@kern
      \fi
  }{#1}{#2}%
}%
%    \end{macrocode}
%
% Author-year 模式的 \cs{citep} 的页码:
%    \begin{macrocode}
\renewcommand\NAT@cite%
    [3]{\ifNAT@swa\NAT@@open\if*#2*\else#2\NAT@spacechar\fi
        #1\NAT@@close\if*#3*\else\textsuperscript{#3}\fi\else#1\fi\endgroup}
%    \end{macrocode}
% \end{macro}
%
% Author-year 模式的 \cs{citet} 的页码:
%    \begin{macrocode}
\def\NAT@citex%
  [#1][#2]#3{%
  \NAT@reset@parser
  \NAT@sort@cites{#3}%
  \NAT@reset@citea
  \@cite{\let\NAT@nm\@empty\let\NAT@year\@empty
    \@for\@citeb:=\NAT@cite@list\do
    {\@safe@activestrue
     \edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%
     \@safe@activesfalse
     \@ifundefined{b@\@citeb\@extra@b@citeb}{\@citea%
       {\reset@font\bfseries ?}\NAT@citeundefined
                 \PackageWarning{natbib}%
       {Citation `\@citeb' on page \thepage \space undefined}\def\NAT@date{}}%
     {\let\NAT@last@nm=\NAT@nm\let\NAT@last@yr=\NAT@year
      \NAT@parse{\@citeb}%
      \ifNAT@longnames\@ifundefined{bv@\@citeb\@extra@b@citeb}{%
        \let\NAT@name=\NAT@all@names
        \global\@namedef{bv@\@citeb\@extra@b@citeb}{}}{}%
      \fi
     \ifNAT@full\let\NAT@nm\NAT@all@names\else
       \let\NAT@nm\NAT@name\fi
     \ifNAT@swa\ifcase\NAT@ctype
       \if\relax\NAT@date\relax
         \@citea\NAT@hyper@{\NAT@nmfmt{\NAT@nm}\NAT@date}%
       \else
         \ifx\NAT@last@nm\NAT@nm\NAT@yrsep
            \ifx\NAT@last@yr\NAT@year
              \def\NAT@temp{{?}}%
              \ifx\NAT@temp\NAT@exlab\PackageWarningNoLine{natbib}%
               {Multiple citation on page \thepage: same authors and
               year\MessageBreak without distinguishing extra
               letter,\MessageBreak appears as question mark}\fi
              \NAT@hyper@{\NAT@exlab}%
            \else\unskip\NAT@spacechar
              \NAT@hyper@{\NAT@date}%
            \fi
         \else
           \@citea\NAT@hyper@{%
             \NAT@nmfmt{\NAT@nm}%
             \hyper@natlinkbreak{%
               \NAT@aysep\NAT@spacechar}{\@citeb\@extra@b@citeb
             }%
             \NAT@date
           }%
         \fi
       \fi
     \or\@citea\NAT@hyper@{\NAT@nmfmt{\NAT@nm}}%
     \or\@citea\NAT@hyper@{\NAT@date}%
     \or\@citea\NAT@hyper@{\NAT@alias}%
     \fi \NAT@def@citea
     \else
       \ifcase\NAT@ctype
        \if\relax\NAT@date\relax
          \@citea\NAT@hyper@{\NAT@nmfmt{\NAT@nm}}%
        \else
         \ifx\NAT@last@nm\NAT@nm\NAT@yrsep
            \ifx\NAT@last@yr\NAT@year
              \def\NAT@temp{{?}}%
              \ifx\NAT@temp\NAT@exlab\PackageWarningNoLine{natbib}%
               {Multiple citation on page \thepage: same authors and
               year\MessageBreak without distinguishing extra
               letter,\MessageBreak appears as question mark}\fi
              \NAT@hyper@{\NAT@exlab}%
            \else
              \unskip\NAT@spacechar
              \NAT@hyper@{\NAT@date}%
            \fi
         \else
           \@citea\NAT@hyper@{%
             \NAT@nmfmt{\NAT@nm}%
             \hyper@natlinkbreak{\NAT@spacechar\NAT@@open\if*#1*\else#1\NAT@spacechar\fi}%
               {\@citeb\@extra@b@citeb}%
             \NAT@date
           }%
         \fi
        \fi
       \or\@citea\NAT@hyper@{\NAT@nmfmt{\NAT@nm}}%
       \or\@citea\NAT@hyper@{\NAT@date}%
       \or\@citea\NAT@hyper@{\NAT@alias}%
       \fi
       \if\relax\NAT@date\relax
         \NAT@def@citea
       \else
         \NAT@def@citea@close
       \fi
     \fi
     }}\ifNAT@swa\else
%    \end{macrocode}
%
% 将页码放在括号外边,并且置于上标。
%    \begin{macrocode}
       % \if*#2*\else\NAT@cmt#2\fi
       \if\relax\NAT@date\relax\else\NAT@@close\fi
       \if*#2*\else\textsuperscript{#2}\fi
     \fi}{#1}{#2}}
%    \end{macrocode}
%
% \begin{environment}{thebibliography}
% 参考文献列表的标签左对齐
%    \begin{macrocode}
\renewcommand\@biblabel[1]{[#1]\hfill}
%    \end{macrocode}
% \end{environment}
%
% \begin{macro}{\url}
% 使用 \pkg{xurl} 宏包的方法,增加 URL 可断行的位置。
%    \begin{macrocode}
\g@addto@macro\UrlBreaks{%
  \do0\do1\do2\do3\do4\do5\do6\do7\do8\do9%
  \do\A\do\B\do\C\do\D\do\E\do\F\do\G\do\H\do\I\do\J\do\K\do\L\do\M
  \do\N\do\O\do\P\do\Q\do\R\do\S\do\T\do\U\do\V\do\W\do\X\do\Y\do\Z
  \do\a\do\b\do\c\do\d\do\e\do\f\do\g\do\h\do\i\do\j\do\k\do\l\do\m
  \do\n\do\o\do\p\do\q\do\r\do\s\do\t\do\u\do\v\do\w\do\x\do\y\do\z
}
\Urlmuskip=0mu plus 0.1mu
%    \end{macrocode}
% \end{macro}
%
% 兼容 v2.0 前过时的接口:
%    \begin{macrocode}
\newif\ifgbt@bib@style@written
\@ifpackageloaded{chapterbib}{}{%
  \def\bibliography#1{%
    \ifgbt@bib@style@written\else
      \bibliographystyle{gbt7714-numerical}%
    \fi
    \if@filesw
      \immediate\write\@auxout{\string\bibdata{\zap@space#1 \@empty}}%
    \fi
    \@input@{\jobname.bbl}}
  \def\bibliographystyle#1{%
    \gbt@bib@style@writtentrue
    \ifx\@begindocumenthook\@undefined\else
      \expandafter\AtBeginDocument
    \fi
      {\if@filesw
        \immediate\write\@auxout{\string\bibstyle{#1}}%
      \fi}%
  }%
}
\ifgbt@legacy@interface
  \ifgbt@numerical
    \ifgbt@super\else
      \citestyle{numbers}
    \fi
    \bibliographystyle{gbt7714-numerical}
  \else
    \bibliographystyle{gbt7714-author-year}
  \fi
\fi
%</package>
%    \end{macrocode}
%
%
%
% \section{BibTeX 样式的代码实现}
% \label{bst-implementation}
% \linespread{1}
%
% \subsection{自定义选项}
% \label{sec:options}
%
% \begin{environment}{bst}
% 这里定义了一些变量用于定制样式,
% 可以在下面的 |load.config| 函数中选择是否启用。
%    \begin{macrocode}
%<*author-year|numerical>
INTEGERS {
  citation.et.al.min
  citation.et.al.use.first
  bibliography.et.al.min
  bibliography.et.al.use.first
  uppercase.name
  terms.in.macro
  year.after.author
  period.after.author
  italic.book.title
  sentence.case.title
  link.title
  title.in.journal
  show.patent.country
  show.mark
  space.before.mark
  show.medium.type
  short.journal
  italic.journal
  bold.journal.volume
  show.missing.address.publisher
  space.before.pages
  only.start.page
  wave.dash.in.pages
  show.urldate
  show.url
  show.doi
  show.preprint
  show.note
  show.english.translation
  end.with.period
%<*author-year>
  lang.zh.order
  lang.ja.order
  lang.en.order
  lang.ru.order
  lang.other.order
%</author-year>
}

STRINGS {
  component.part.label
}

%    \end{macrocode}
%
% 下面每个变量若被设为 |#1| 则启用该项,若被设为 |#0| 则不启用。
% 默认的值是严格遵循国标的配置。
%    \begin{macrocode}
FUNCTION {load.config}
{
%    \end{macrocode}
%
% 如果姓名的数量大于等于 |et.al.min|,只著录前 |et.al.use.first| 个,
% 其后加“et al.”或“等”。
%    \begin{macrocode}
%<*!ucas>
  #2 'citation.et.al.min :=
  #1 'citation.et.al.use.first :=
%</!ucas>
%<*ucas>
  #3 'citation.et.al.min :=
  #1 'citation.et.al.use.first :=
%</ucas>
  #4 'bibliography.et.al.min :=
  #3 'bibliography.et.al.use.first :=
%    \end{macrocode}
%
% 英文姓名转为全大写:
%    \begin{macrocode}
%<*!(no-uppercase|thu)>
  #1 'uppercase.name :=
%</!(no-uppercase|thu)>
%<*no-uppercase|thu>
  #0 'uppercase.name :=
%</no-uppercase|thu>
%    \end{macrocode}
%
% 使用 TeX 宏输出“和”、“等”
%    \begin{macrocode}
%<*!(macro|ucas)>
  #0 'terms.in.macro :=
%</!(macro|ucas)>
%<*macro|ucas>
  #1 'terms.in.macro :=
%</macro|ucas>
%    \end{macrocode}
%
% 将年份置于著者后面(著者-出版年制默认)
%    \begin{macrocode}
%<*numerical|ucas>
  #0 'year.after.author :=
%</numerical|ucas>
%<*author-year&!ucas>
  #1 'year.after.author :=
%</author-year&!ucas>
%    \end{macrocode}
%
% 采用著者-出版年制时,作者姓名与年份之间使用句点连接:
%    \begin{macrocode}
%<*numerical>
  #1 'period.after.author :=
%</numerical>
%<*author-year>
%<*2015&!(period|ustc)>
  #0 'period.after.author :=
%</2015&!(period|ustc)>
%<*period|2005|ustc>
  #1 'period.after.author :=
%</period|2005|ustc>
%</author-year>
%    \end{macrocode}
%
% 书名使用斜体:
%    \begin{macrocode}
%<*!italic-book-title>
  #0 'italic.book.title :=
%</!italic-book-title>
%<*italic-book-title>
  #1 'italic.book.title :=
%</italic-book-title>
%    \end{macrocode}
%
% 英文标题转为 sentence case (句首字母大写,其余小写):
%    \begin{macrocode}
%<*!no-sentence-case>
  #1 'sentence.case.title :=
%</!no-sentence-case>
%<*no-sentence-case>
  #0 'sentence.case.title :=
%</no-sentence-case>
%    \end{macrocode}
%
% 在标题添加超链接:
%    \begin{macrocode}
%<*!link-title>
  #0 'link.title :=
%</!link-title>
%<*link-title>
  #1 'link.title :=
%</link-title>
%    \end{macrocode}
%
% 期刊是否含标题:
%    \begin{macrocode}
%<*!no-title-in-journal>
  #1 'title.in.journal :=
%</!no-title-in-journal>
%<*no-title-in-journal>
  #0 'title.in.journal :=
%</no-title-in-journal>
%    \end{macrocode}
%
% 专利题名是否含专利国别
%    \begin{macrocode}
%<*!(show-patent-country|2005|ustc|thu)>
  #0 'show.patent.country :=
%</!(show-patent-country|2005|ustc|thu)>
%<*(show-patent-country|2005|ustc|thu)>
  #1 'show.patent.country :=
%</(show-patent-country|2005|ustc|thu)>
%    \end{macrocode}
%
% 著录文献类型标识(比如“[M/OL]“):
%    \begin{macrocode}
%<*!no-mark>
  #1 'show.mark :=
%</!no-mark>
%<*no-mark>
  #0 'show.mark :=
%</no-mark>
%    \end{macrocode}
%
% 文献类型标识前是否有空格:
%    \begin{macrocode}
%<*!space-before-mark>
  #0 'space.before.mark :=
%</!space-before-mark>
%<*space-before-mark>
  #1 'space.before.mark :=
%</space-before-mark>
%    \end{macrocode}
%
% 是否显示载体类型标识(比如“/OL“):
%    \begin{macrocode}
%<*!no-medium-type>
  #1 'show.medium.type :=
%</!no-medium-type>
%<*no-medium-type>
  #0 'show.medium.type :=
%</no-medium-type>
%    \end{macrocode}
%
% 使用“//”表示析出文献
%    \begin{macrocode}
%<*!(in-collection|no-slash)>
  "slash" 'component.part.label :=
%</!(in-collection|no-slash)>
%<*in-collection>
  "in" 'component.part.label :=
%</in-collection>
%<*no-slash>
  "none" 'component.part.label :=
%</no-slash>
%    \end{macrocode}
%
% 期刊名使用缩写:
%    \begin{macrocode}
%<*!short-journal>
  #0 'short.journal :=
%</!short-journal>
%<*short-journal>
  #1 'short.journal :=
%</short-journal>
%    \end{macrocode}
%
% 期刊名使用斜体:
%    \begin{macrocode}
%<*!italic-journal>
  #0 'italic.journal :=
%</!italic-journal>
%<*italic-journal>
  #1 'italic.journal :=
%</italic-journal>
%    \end{macrocode}
%
% 期刊的卷使用粗体:
%    \begin{macrocode}
  #0 'bold.journal.volume :=
%    \end{macrocode}
%
% 无出版地或出版者时,著录“出版地不详”,“出版者不详”,“S.l.” 或 “s.n.”:
%    \begin{macrocode}
%<*!sl-sn>
  #0 'show.missing.address.publisher :=
%</!sl-sn>
%<*sl-sn>
  #1 'show.missing.address.publisher :=
%</sl-sn>
%    \end{macrocode}
%
% 页码与前面的冒号之间是否有空格:
%    \begin{macrocode}
%<*!no-space-before-pages>
  #1 'space.before.pages :=
%</!no-space-before-pages>
%<*no-space-before-pages>
  #0 'space.before.pages :=
%</no-space-before-pages>
%    \end{macrocode}
%
% 页码是否只含起始页:
%    \begin{macrocode}
%<*!only-start-page>
  #0 'only.start.page :=
%</!only-start-page>
%<*only-start-page>
  #1 'only.start.page :=
%</only-start-page>
%    \end{macrocode}
%
% 起止页码使用波浪号:
%    \begin{macrocode}
%<*!wave-dash-in-pages>
  #0 'wave.dash.in.pages :=
%</!wave-dash-in-pages>
%<*wave-dash-in-pages>
  #1 'wave.dash.in.pages :=
%</wave-dash-in-pages>
%    \end{macrocode}
%
% 是否著录非电子文献的引用日期:
%    \begin{macrocode}
%<*!no-urldate>
  #1 'show.urldate :=
%</!no-urldate>
%<*no-urldate>
  #0 'show.urldate :=
%</no-urldate>
%    \end{macrocode}
%
% 是否著录 URL:
%    \begin{macrocode}
%<*!no-url>
  #1 'show.url :=
%</!no-url>
%<*no-url>
  #0 'show.url :=
%</no-url>
%    \end{macrocode}
%
% 是否著录 DOI:
%    \begin{macrocode}
%<*!(no-doi|2005)>
  #1 'show.doi :=
%</!(no-doi|2005)>
%<*no-doi|2005>
  #0 'show.doi :=
%</no-doi|2005>
%    \end{macrocode}
%
% 是否著录 e-print:
%    \begin{macrocode}
%<*!preprint>
  #1 'show.preprint :=
%</!preprint>
%<*preprint>
  #0 'show.preprint :=
%</preprint>
%    \end{macrocode}
%
% 在每一条文献最后输出注释(note)的内容:
%    \begin{macrocode}
  #0 'show.note :=
%    \end{macrocode}
%
% 中文文献是否显示英文翻译
%    \begin{macrocode}
%<*!show-english-translation>
  #0 'show.english.translation :=
%</!show-english-translation>
%<*show-english-translation>
  #1 'show.english.translation :=
%</show-english-translation>
%    \end{macrocode}
%
% 结尾加句点
%    \begin{macrocode}
%<*!no-period-at-end>
  #1 'end.with.period :=
%</!no-period-at-end>
%<*no-period-at-end>
  #0 'end.with.period :=
%</no-period-at-end>
%    \end{macrocode}
%
% 参考文献表按照“著者-出版年”组织时,各个文种的顺序:
%    \begin{macrocode}
%<*author-year>
  #1 'lang.zh.order :=
  #2 'lang.ja.order :=
  #3 'lang.en.order :=
  #4 'lang.ru.order :=
  #5 'lang.other.order :=
%</author-year>
}

%    \end{macrocode}
%
%
% \subsection{The ENTRY declaration}
%
%   Like Scribe's (according to pages 231-2 of the April '84 edition),
%   but no fullauthor or editors fields because BibTeX does name handling.
%   The annote field is commented out here because this family doesn't
%   include an annotated bibliography style.  And in addition to the fields
%   listed here, BibTeX has a built-in crossref field, explained later.
%    \begin{macrocode}
ENTRY
  { address
    archivePrefix
    author
    booktitle
    date
    doi
    edition
    editor
    eprint
    eprinttype
    entrysubtype
    howpublished
    institution
    journal
    journaltitle
    key
    langid
    language
    location
    mark
    medium
    note
    number
    organization
    pages
    publisher
    school
    series
    shortjournal
    title
    translation
    translator
    url
    urldate
    volume
    year
  }
  { entry.lang entry.is.electronic is.pure.electronic entry.numbered }
%    \end{macrocode}
%
% These string entry variables are used to form the citation label.
% In a storage pinch, sort.label can be easily computed on the fly.
%    \begin{macrocode}
  { label extra.label sort.label short.label short.list entry.mark entry.url }

%    \end{macrocode}
%
%
% \subsection{Entry functions}
%
% Each entry function starts by calling output.bibitem, to write the
% |\bibitem| and its arguments to the .BBL file.  Then the various fields
% are formatted and printed by output or output.check.  Those functions
% handle the writing of separators (commas, periods, |\newblock|'s),
% taking care not to do so when they are passed a null string.
% Finally, fin.entry is called to add the final period and finish the
% entry.
%
% A bibliographic reference is formatted into a number of `blocks':
% in the open format, a block begins on a new line and subsequent
% lines of the block are indented.  A block may contain more than
% one sentence (well, not a grammatical sentence, but something to
% be ended with a sentence ending period).  The entry functions should
% call new.block whenever a block other than the first is about to be
% started.  They should call new.sentence whenever a new sentence is
% to be started.  The output functions will ensure that if two
% new.sentence's occur without any non-null string being output between
% them then there won't be two periods output.  Similarly for two
% successive new.block's.
%
% The output routines don't write their argument immediately.
% Instead, by convention, that argument is saved on the stack to be
% output next time (when we'll know what separator needs to come
% after it).  Meanwhile, the output routine has to pop the pending
% output off the stack, append any needed separator, and write it.
%
% To tell which separator is needed, we maintain an output.state.
% It will be one of these values:
%       before.all              just after the |\bibitem|
%       mid.sentence            in the middle of a sentence: comma needed
%                                       if more sentence is output
%       after.sentence          just after a sentence: period needed
%       after.block             just after a block (and sentence):
%                                       period and |\newblock| needed.
% Note: These styles don't use after.sentence
%
% VAR: output.state : INTEGER           -- state variable for output
%
% The output.nonnull function saves its argument (assumed to be nonnull)
% on the stack, and writes the old saved value followed by any needed
% separator.  The ordering of the tests is decreasing frequency of
% occurrence.
%
% 由于专著中的析出文献需要用到很特殊的“//”,所以我又加了一个 after.slash。
% 其他需要在特定符号后面输出,所以写了一个 output.after。
%
% \begin{pseudocode}
% output.nonnull(s) ==
%  BEGIN
%       s := argument on stack
%       if output.state = mid.sentence then
%           write$(pop() * ", ")
%                 -- "pop" isn't a function: just use stack top
%       else
%           if output.state = after.block then
%               write$(add.period$(pop()))
%               newline$
%               write$("\newblock ")
%           else
%               if output.state = before.all then
%                   write$(pop())
%               else        -- output.state should be after.sentence
%                   write$(add.period$(pop()) * " ")
%               fi
%           fi
%           output.state := mid.sentence
%       fi
%       push s on stack
%  END
% \end{pseudocode}
%
% The output function calls output.nonnull if its argument is non-empty;
% its argument may be a missing field (thus, not necessarily a string)
%
% \begin{pseudocode}
% output(s) ==
%  BEGIN
%       if not empty$(s) then output.nonnull(s)
%       fi
%  END
% \end{pseudocode}
%
% The output.check function is the same as the output function except that, if
% necessary, output.check warns the user that the t field shouldn't be empty
% (this is because it probably won't be a good reference without the field;
% the entry functions try to make the formatting look reasonable even when
% such fields are empty).
%
% \begin{pseudocode}
% output.check(s,t) ==
%  BEGIN
%       if empty$(s) then
%           warning$("empty " * t * " in " * cite$)
%       else output.nonnull(s)
%       fi
%  END
% \end{pseudocode}
%
% The output.bibitem function writes the |\bibitem| for the current entry
% (the label should already have been set up), and sets up the separator
% state for the output functions.  And, it leaves a string on the stack
% as per the output convention.
%
% \begin{pseudocode}
% output.bibitem ==
%  BEGIN
%       newline$
%       write$("\bibitem[")     % for alphabetic labels,
%       write$(label)           % these three lines
%       write$("]{")            % are used
%       write$("\bibitem{")             % this line for numeric labels
%       write$(cite$)
%       write$("}")
%       push "" on stack
%       output.state := before.all
%  END
% \end{pseudocode}
%
% The fin.entry function finishes off an entry by adding a period to the
% string remaining on the stack.  If the state is still before.all
% then nothing was produced for this entry, so the result will look bad,
% but the user deserves it. (We don't omit the whole entry because the
% entry was cited, and a bibitem is needed to define the citation label.)
%
% \begin{pseudocode}
% fin.entry ==
%  BEGIN
%       write$(add.period$(pop()))
%       newline$
%  END
% \end{pseudocode}
%
% The new.block function prepares for a new block to be output, and
% new.sentence prepares for a new sentence.
%
% \begin{pseudocode}
% new.block ==
%  BEGIN
%       if output.state <> before.all then
%           output.state := after.block
%       fi
%  END
% \end{pseudocode}
%
% \begin{pseudocode}
% new.sentence ==
%  BEGIN
%       if output.state <> after.block then
%           if output.state <> before.all then
%               output.state :=  after.sentence
%           fi
%       fi
%  END
% \end{pseudocode}
%    \begin{macrocode}
INTEGERS { output.state before.all mid.sentence after.sentence after.block after.slash }

INTEGERS { lang.zh lang.ja lang.en lang.ru lang.other }

INTEGERS { charptr len }

FUNCTION {init.state.consts}
{ #0 'before.all :=
  #1 'mid.sentence :=
  #2 'after.sentence :=
  #3 'after.block :=
  #4 'after.slash :=
  #3 'lang.zh :=
  #4 'lang.ja :=
  #1 'lang.en :=
  #2 'lang.ru :=
  #0 'lang.other :=
}

%    \end{macrocode}
%
% 下面是一些常量的定义
%    \begin{macrocode}
FUNCTION {bbl.anonymous}
{ entry.lang lang.zh =
    { "佚名" }
    { "Anon" }
  if$
}

FUNCTION {bbl.space}
{ entry.lang lang.zh =
    { "\ " }
    { " " }
  if$
}

FUNCTION {bbl.and}
{ "" }

FUNCTION {bbl.et.al}
{ entry.lang lang.zh =
    { "等" }
    { entry.lang lang.ja =
        { "他" }
        { entry.lang lang.ru =
            { "идр" }
            { "et~al." }
          if$
        }
      if$
    }
  if$
}

FUNCTION {citation.and}
{ terms.in.macro
    { "{\biband}" }
    'bbl.and
  if$
}

FUNCTION {citation.et.al}
{ terms.in.macro
    { "{\bibetal}" }
    'bbl.et.al
  if$
}

FUNCTION {bbl.colon} { ": " }

FUNCTION {bbl.pages.colon}
{ space.before.pages
    { ": " }
    { ":\allowbreak " }
  if$
}

%<*!2005>
FUNCTION {bbl.wide.space} { "\quad " }
%</!2005>
%<*2005>
FUNCTION {bbl.wide.space} { "\ " }
%</2005>

FUNCTION {bbl.slash} { "//\allowbreak " }

FUNCTION {bbl.sine.loco}
{ entry.lang lang.zh =
    { "[出版地不详]" }
    { "[S.l.]" }
  if$
}

FUNCTION {bbl.sine.nomine}
{ entry.lang lang.zh =
    { "[出版者不详]" }
    { "[s.n.]" }
  if$
}

FUNCTION {bbl.sine.loco.sine.nomine}
{ entry.lang lang.zh =
    { "[出版地不详: 出版者不详]" }
    { "[S.l.: s.n.]" }
  if$
}

%    \end{macrocode}
%
% These three functions pop one or two (integer) arguments from the stack
% and push a single one, either 0 or 1.
% The |'skip$| in the `and' and `or' functions are used because
% the corresponding |if$| would be idempotent
%    \begin{macrocode}
FUNCTION {not}
{   { #0 }
    { #1 }
  if$
}

FUNCTION {and}
{   'skip$
    { pop$ #0 }
  if$
}

FUNCTION {or}
{   { pop$ #1 }
    'skip$
  if$
}

STRINGS { x y }

FUNCTION {contains}
{ 'y :=
  'x :=
  y text.length$ 'len :=
  x text.length$ len - #1 + 'charptr :=
    { charptr #0 >
      x charptr len substring$ y = not
      and
    }
    { charptr #1 - 'charptr := }
  while$
  charptr #0 >
}

%    \end{macrocode}
%
% the variables s and t are temporary string holders
%    \begin{macrocode}
STRINGS { s t }

FUNCTION {output.nonnull}
{ 's :=
  output.state mid.sentence =
    { ", " * write$ }
    { output.state after.block =
        { add.period$ write$
          newline$
          "\newblock " write$
        }
        { output.state before.all =
            'write$
            { output.state after.slash =
                { bbl.slash * write$
                  newline$
                }
                { add.period$ " " * write$ }
              if$
            }
          if$
        }
      if$
      mid.sentence 'output.state :=
    }
  if$
  s
}

FUNCTION {output}
{ duplicate$ empty$
    'pop$
    'output.nonnull
  if$
}

FUNCTION {output.after}
{ 't :=
  duplicate$ empty$
    'pop$
    { 's :=
      output.state mid.sentence =
        { t * write$ }
        { output.state after.block =
            { add.period$ write$
              newline$
              "\newblock " write$
            }
            { output.state before.all =
                'write$
                { output.state after.slash =
                    { bbl.slash * write$ }
                    { add.period$ " " * write$ }
                  if$
                }
              if$
            }
          if$
          mid.sentence 'output.state :=
        }
      if$
      s
    }
  if$
}

FUNCTION {output.check}
{ 't :=
  duplicate$ empty$
    { pop$ "empty " t * " in " * cite$ * warning$ }
    'output.nonnull
  if$
}

%    \end{macrocode}
%
% This function finishes all entries.
%
%    \begin{macrocode}
FUNCTION {fin.entry}
{ end.with.period
    'add.period$
    'skip$
  if$
  write$
  show.english.translation entry.lang lang.zh = and
    { ")"
      write$
    }
    'skip$
  if$
  newline$
}

FUNCTION {new.block}
{ output.state before.all =
    'skip$
    { output.state after.slash =
        'skip$
        { after.block 'output.state := }
      if$
    }
  if$
}

FUNCTION {new.sentence}
{ output.state after.block =
    'skip$
    { output.state before.all =
        'skip$
        { output.state after.slash =
            'skip$
            { after.sentence 'output.state := }
          if$
        }
      if$
    }
  if$
}

FUNCTION {new.slash}
{ output.state before.all =
    'skip$
    { component.part.label "slash" =
        { after.slash 'output.state := }
        { new.block
          component.part.label "in" =
            { entry.lang lang.en =
                { "In: " output
                  write$
                  ""
                  before.all 'output.state :=
                }
                'skip$
              if$
            }
            'skip$
          if$
        }
      if$
    }
  if$
}

%    \end{macrocode}
%
% Sometimes we begin a new block only if the block will be big enough.  The
% new.block.checka function issues a new.block if its argument is nonempty;
% new.block.checkb does the same if either of its TWO arguments is nonempty.
%    \begin{macrocode}
FUNCTION {new.block.checka}
{ empty$
    'skip$
    'new.block
  if$
}

FUNCTION {new.block.checkb}
{ empty$
  swap$ empty$
  and
    'skip$
    'new.block
  if$
}

%    \end{macrocode}
%
% The new.sentence.check functions are analogous.
%    \begin{macrocode}
FUNCTION {new.sentence.checka}
{ empty$
    'skip$
    'new.sentence
  if$
}

FUNCTION {new.sentence.checkb}
{ empty$
  swap$ empty$
  and
    'skip$
    'new.sentence
  if$
}

%    \end{macrocode}
%
%
% \subsection{Formatting chunks}
%
% Here are some functions for formatting chunks of an entry.
% By convention they either produce a string that can be followed by
% a comma or period (using |add.period$|, so it is OK to end in a period),
% or they produce the null string.
%
% A useful utility is the field.or.null function, which checks if the
% argument is the result of pushing a `missing' field (one for which no
% assignment was made when the current entry was read in from the database)
% or the result of pushing a string having no non-white-space characters.
% It returns the null string if so, otherwise it returns the field string.
% Its main (but not only) purpose is to guarantee that what's left on the
% stack is a string rather than a missing field.
%
% \begin{pseudocode}
% field.or.null(s) ==
%  BEGIN
%       if empty$(s) then return ""
%       else return s
%  END
% \end{pseudocode}
%
% Another helper function is emphasize, which returns the argument emphazised,
% if that is non-empty, otherwise it returns the null string.  Italic
% corrections aren't used, so this function should be used when punctation
% will follow the result.
%
% \begin{pseudocode}
% emphasize(s) ==
%  BEGIN
%       if empty$(s) then return ""
%       else return "{\em " * s * "}"
% \end{pseudocode}
%
% The `pop\$' in this function gets rid of the duplicate `empty' value and
% the `skip\$' returns the duplicate field value
%    \begin{macrocode}
FUNCTION {field.or.null}
{ duplicate$ empty$
    { pop$ "" }
    'skip$
  if$
}

FUNCTION {emphasize}
{ duplicate$ empty$
    { pop$ "" }
    { "\emph{" swap$ * "}" * }
  if$
}

FUNCTION {format.btitle}
{ italic.book.title
  entry.lang lang.en = and
    'emphasize
    'skip$
  if$
}

%    \end{macrocode}
%
% \subsubsection{Detect Language}
%    \begin{macrocode}
INTEGERS { byte second.byte }

INTEGERS { char.lang tmp.lang }

STRINGS { tmp.str }

FUNCTION {get.str.lang}
{ 'tmp.str :=
  lang.other 'tmp.lang :=
  #1 'charptr :=
  tmp.str text.length$ #1 + 'len :=
    { charptr len < }
    { tmp.str charptr #1 substring$ chr.to.int$ 'byte :=
      byte #128 <
        { charptr #1 + 'charptr :=
          byte #64 > byte #91 < and byte #96 > byte #123 < and or
            { lang.en 'char.lang := }
            { lang.other 'char.lang := }
          if$
        }
        { tmp.str charptr #1 + #1 substring$ chr.to.int$ 'second.byte :=
          byte #224 <
%    \end{macrocode}
% 俄文西里尔字母:U+0400 到 U+052F,对应 UTF-8 从 D0 80 到 D4 AF。
%    \begin{macrocode}
            { charptr #2 + 'charptr :=
              byte #207 > byte #212 < and
              byte #212 = second.byte #176 < and or
                { lang.ru 'char.lang := }
                { lang.other 'char.lang := }
              if$
            }
            { byte #240 <
%    \end{macrocode}
% CJK Unified Ideographs: U+4E00--U+9FFF; UTF-8: E4 B8 80--E9 BF BF.
%    \begin{macrocode}
                { charptr #3 + 'charptr :=
                  byte #227 > byte #234 < and
                    { lang.zh 'char.lang := }
%    \end{macrocode}
% CJK Unified Ideographs Extension A: U+3400--U+4DBF; UTF-8: E3 90 80--E4 B6 BF.
%    \begin{macrocode}
                    { byte #227 =
                        { second.byte #143 >
                            { lang.zh 'char.lang := }
%    \end{macrocode}
% 日语假名:U+3040--U+30FF, UTF-8: E3 81 80--E3 83 BF.
%    \begin{macrocode}
                            { second.byte #128 > second.byte #132 < and
                                { lang.ja 'char.lang := }
                                { lang.other 'char.lang := }
                              if$
                            }
                          if$
                        }
%    \end{macrocode}
% CJK Compatibility Ideographs: U+F900--U+FAFF, UTF-8: EF A4 80--EF AB BF.
%    \begin{macrocode}
                        { byte #239 =
                          second.byte #163 > second.byte #172 < and and
                            { lang.zh 'char.lang := }
                            { lang.other 'char.lang := }
                          if$
                        }
                      if$
                    }
                  if$
                }
%    \end{macrocode}
% CJK Unified Ideographs Extension B--F: U+20000--U+2EBEF,
% UTF-8: F0 A0 80 80--F0 AE AF AF.
% CJK Compatibility Ideographs Supplement: U+2F800--U+2FA1F,
% UTF-8: F0 AF A0 80--F0 AF A8 9F.
%    \begin{macrocode}
                { charptr #4 + 'charptr :=
                  byte #240 = second.byte #159 > and
                    { lang.zh 'char.lang := }
                    { lang.other 'char.lang := }
                  if$
                }
              if$
            }
          if$
        }
      if$
      char.lang tmp.lang >
        { char.lang 'tmp.lang := }
        'skip$
      if$
    }
  while$
  tmp.lang
}

FUNCTION {check.entry.lang}
{ author field.or.null
  title field.or.null *
  get.str.lang
}

STRINGS { entry.langid }

FUNCTION {set.entry.lang}
{ "" 'entry.langid :=
  language empty$ not
    { language 'entry.langid := }
    'skip$
  if$
  langid empty$ not
    { langid 'entry.langid := }
    'skip$
  if$
  entry.langid empty$
    { check.entry.lang }
    { entry.langid "english" = entry.langid "american" = or entry.langid "british" = or
        { lang.en }
        { entry.langid "chinese" =
            { lang.zh }
            { entry.langid "japanese" =
                { lang.ja }
                { entry.langid "russian" =
                    { lang.ru }
                    { check.entry.lang }
                  if$
                }
              if$
            }
          if$
        }
      if$
    }
  if$
  'entry.lang :=
}

FUNCTION {set.entry.numbered}
{ type$ "patent" =
  type$ "standard" = or
  type$ "techreport" = or
    { #1 'entry.numbered := }
    { #0 'entry.numbered := }
  if$
}

%    \end{macrocode}
%
% \subsubsection{Format names}
%
% The format.names function formats the argument (which should be in
% BibTeX name format) into "First Von Last, Junior", separated by commas
% and with an "and" before the last (but ending with "et~al." if the last
% of multiple authors is "others").  This function's argument should always
% contain at least one name.
%
% \begin{pseudocode}
% VAR: nameptr, namesleft, numnames: INTEGER
% pseudoVAR: nameresult: STRING         (it's what's accumulated on the stack)
%
% format.names(s) ==
%  BEGIN
%       nameptr := 1
%       numnames := num.names$(s)
%       namesleft := numnames
%       while namesleft > 0
%         do
%                               % for full names:
%           t := format.name$(s, nameptr, "{ff~}{vv~}{ll}{, jj}")
%                               % for abbreviated first names:
%           t := format.name$(s, nameptr, "{f.~}{vv~}{ll}{, jj}")
%           if nameptr > 1 then
%               if namesleft > 1 then nameresult := nameresult * ", " * t
%               else if numnames > 2
%                      then nameresult := nameresult * ","
%                    fi
%                    if t = "others"
%                      then nameresult := nameresult * " et~al."
%                      else nameresult := nameresult * " and " * t
%                    fi
%               fi
%           else nameresult := t
%           fi
%           nameptr := nameptr + 1
%           namesleft := namesleft - 1
%         od
%       return nameresult
%  END
% \end{pseudocode}
%
% The format.authors function returns the result of format.names(author)
% if the author is present, or else it returns the null string
%
% \begin{pseudocode}
% format.authors ==
%  BEGIN
%       if empty$(author) then return ""
%       else return format.names(author)
%       fi
%  END
% \end{pseudocode}
%
% Format.editors is like format.authors, but it uses the editor field,
% and appends ", editor" or ", editors"
%
% \begin{pseudocode}
% format.editors ==
%  BEGIN
%       if empty$(editor) then return ""
%       else
%           if num.names$(editor) > 1 then
%               return format.names(editor) * ", editors"
%           else
%               return format.names(editor) * ", editor"
%           fi
%       fi
%  END
% \end{pseudocode}
%
% Other formatting functions are similar, so no "comment version" will be
% given for them.
%    \begin{macrocode}
INTEGERS { nameptr namesleft numnames name.lang }

FUNCTION {format.name}
{ "{vv~}{ll}{, jj}{, ff}" format.name$ 't :=
  t "others" =
    { bbl.et.al }
    { t get.str.lang 'name.lang :=
      name.lang lang.en =
        { t #1 "{vv~}{ll}{ f{~}}" format.name$
          uppercase.name
            { "u" change.case$ }
            'skip$
          if$
          t #1 "{, jj}" format.name$ *
        }
        { t #1 "{ll}{ff}" format.name$ }
      if$
    }
  if$
}

FUNCTION {format.names}
{ 's :=
  #1 'nameptr :=
  s num.names$ 'numnames :=
  ""
  numnames 'namesleft :=
    { namesleft #0 > }
    { s nameptr format.name bbl.et.al =
      numnames bibliography.et.al.min #1 - > nameptr bibliography.et.al.use.first > and or
        { ", " *
          bbl.et.al *
          #1 'namesleft :=
        }
        { nameptr #1 >
            { namesleft #1 = bbl.and "" = not and
                { bbl.and * }
                { ", " * }
              if$
            }
            'skip$
          if$
          s nameptr format.name *
        }
      if$
      nameptr #1 + 'nameptr :=
      namesleft #1 - 'namesleft :=
    }
  while$
}

FUNCTION {format.key}
{ empty$
    { key field.or.null }
    { "" }
  if$
}

FUNCTION {format.authors}
{ author empty$ not
    { author format.names }
    { "empty author in " cite$ * warning$
%<*author-year>
      bbl.anonymous
%</author-year>
%<*numerical>
      ""
%</numerical>
    }
  if$
}

FUNCTION {format.editors}
{ editor empty$
    { "" }
    { editor format.names }
  if$
}

FUNCTION {format.translators}
{ translator empty$
    { "" }
    { translator format.names
      entry.lang lang.zh =
        { translator num.names$ #3 >
            { "译" * }
            { ", 译" * }
          if$
        }
        'skip$
      if$
    }
  if$
}

FUNCTION {format.full.names}
{'s :=
  #1 'nameptr :=
  s num.names$ 'numnames :=
  numnames 'namesleft :=
    { namesleft #0 > }
    { s nameptr "{vv~}{ll}{, jj}{, ff}" format.name$ 't :=
      t get.str.lang 'name.lang :=
      name.lang lang.en =
        { t #1 "{vv~}{ll}" format.name$ 't := }
        { t #1 "{ll}{ff}" format.name$ 't := }
      if$
      nameptr #1 >
        {
          namesleft #1 >
            { ", " * t * }
            {
              numnames #2 >
                { "," * }
                'skip$
              if$
              t "others" =
                { " et~al." * }
                { " and " * t * }
              if$
            }
          if$
        }
        't
      if$
      nameptr #1 + 'nameptr :=
      namesleft #1 - 'namesleft :=
    }
  while$
}

FUNCTION {author.editor.full}
{ author empty$
    { editor empty$
        { "" }
        { editor format.full.names }
      if$
    }
    { author format.full.names }
  if$
}

FUNCTION {author.full}
{ author empty$
    { "" }
    { author format.full.names }
  if$
}

FUNCTION {editor.full}
{ editor empty$
    { "" }
    { editor format.full.names }
  if$
}

FUNCTION {make.full.names}
{ type$ "book" =
  type$ "inbook" =
  or
    'author.editor.full
    { type$ "collection" =
      type$ "proceedings" =
      or
        'editor.full
        'author.full
      if$
    }
  if$
}

FUNCTION {output.bibitem}
{ newline$
  "\bibitem[" write$
  label ")" *
  make.full.names duplicate$ short.list =
    { pop$ }
    { duplicate$ "]" contains
        { "{" swap$ * "}" * }
        'skip$
      if$
      *
    }
  if$
  "]{" * write$
  cite$ write$
  "}" write$
  newline$
  ""
  before.all 'output.state :=
}

%    \end{macrocode}
%
% \subsubsection{Format title}
%
% The |format.title| function is used for non-book-like titles.
% For most styles we convert to lowercase (except for the very first letter,
% and except for the first one after a colon (followed by whitespace)),
% and hope the user has brace-surrounded words that need to stay capitilized;
% for some styles, however, we leave it as it is in the database.
%    \begin{macrocode}
FUNCTION {change.sentence.case}
{ entry.lang lang.en =
    { "t" change.case$ }
    'skip$
  if$
}

FUNCTION {add.link}
{ url empty$ not
    { "\href{" url * "}{" * swap$ * "}" * }
    { doi empty$ not
        { "\href{https://doi.org/" doi * "}{" * swap$ * "}" * }
        'skip$
      if$
    }
  if$
}

FUNCTION {format.title}
{ title empty$
    { "" }
    { title
      sentence.case.title
        'change.sentence.case
        'skip$
      if$
      entry.numbered number empty$ not and
        { bbl.colon *
          type$ "patent" = show.patent.country and
            { address empty$ not
                { address * ", " * }
                { location empty$ not
                    { location * ", " * }
                    { entry.lang lang.zh =
                        { "中国" * ", " * }
                        'skip$
                      if$
                    }
                  if$
                }
              if$
            }
            'skip$
          if$
          number *
        }
        'skip$
      if$
      link.title
        'add.link
        'skip$
      if$
    }
  if$
}

%    \end{macrocode}
%
% For several functions we'll need to connect two strings with a
% tie (|~|) if the second one isn't very long (fewer than 3 characters).
% The tie.or.space.connect function does that.  It concatenates the two
% strings on top of the stack, along with either a tie or space between
% them, and puts this concatenation back onto the stack:
%
% \begin{pseudocode}
% tie.or.space.connect(str1,str2) ==
%    BEGIN
%       if text.length$(str2) < 3
%         then return the concatenation of str1, "~", and str2
%         else return the concatenation of str1, " ", and str2
%    END
% \end{pseudocode}
%    \begin{macrocode}
FUNCTION {tie.or.space.connect}
{ duplicate$ text.length$ #3 <
    { "~" }
    { " " }
  if$
  swap$ * *
}

%    \end{macrocode}
%
% The either.or.check function complains if both fields or an either-or pair
% are nonempty.
%
% \begin{pseudocode}
% either.or.check(t,s) ==
%  BEGIN
%       if empty$(s) then
%           warning$(can't use both " * t * " fields in " * cite$)
%       fi
%  END
% \end{pseudocode}
%    \begin{macrocode}
FUNCTION {either.or.check}
{ empty$
    'pop$
    { "can't use both " swap$ * " fields in " * cite$ * warning$ }
  if$
}

%    \end{macrocode}
%
% The format.bvolume function is for formatting the volume and perhaps
% series name of a multivolume work.  If both a volume and a series field
% are there, we assume the series field is the title of the whole multivolume
% work (the title field should be the title of the thing being referred to),
% and we add an "of <series>".  This function is called in mid-sentence.
%
% The format.number.series function is for formatting the series name
% and perhaps number of a work in a series.  This function is similar to
% format.bvolume, although for this one the series must exist (and the
% volume must not exist).  If the number field is empty we output either
% the series field unchanged if it exists or else the null string.
% If both the number and series fields are there we assume the series field
% gives the name of the whole series (the title field should be the title
% of the work being one referred to), and we add an "in <series>".
% We capitilize Number when this function is used at the beginning of a block.
%    \begin{macrocode}
FUNCTION {is.digit}
{ duplicate$ empty$
    { pop$ #0 }
    { chr.to.int$
      duplicate$ "0" chr.to.int$ <
      { pop$ #0 }
      { "9" chr.to.int$ >
          { #0 }
          { #1 }
        if$
      }
    if$
    }
  if$
}

FUNCTION {is.number}
{ 's :=
  s empty$
    { #0 }
    { s text.length$ 'charptr :=
        { charptr #0 >
          s charptr #1 substring$ is.digit
          and
        }
        { charptr #1 - 'charptr := }
      while$
      charptr not
    }
  if$
}

FUNCTION {format.volume}
{ volume empty$ not
    { volume is.number
        { entry.lang lang.zh =
            { "第 " volume * " 卷" * }
            { "Vol." volume tie.or.space.connect }
          if$
        }
        { volume }
      if$
    }
    { "" }
  if$
}

FUNCTION {format.number}
{ number empty$ not
    { number is.number
        { entry.lang lang.zh =
            { "第 " number * " 册" * }
            { "No." number tie.or.space.connect }
          if$
        }
        { number }
      if$
    }
    { "" }
  if$
}

FUNCTION {format.volume.number}
{ volume empty$ not
    { format.volume }
    { format.number }
  if$
}

FUNCTION {format.title.vol.num}
{ title
  sentence.case.title
    'change.sentence.case
    'skip$
  if$
  entry.numbered
    { number empty$ not
        { bbl.colon * number * }
        'skip$
      if$
    }
    { format.volume.number 's :=
      s empty$ not
        { bbl.colon * s * }
        'skip$
      if$
    }
  if$
}

FUNCTION {format.series.vol.num.title}
{ format.volume.number 's :=
  series empty$ not
    { series
      sentence.case.title
        'change.sentence.case
        'skip$
      if$
      entry.numbered
        { bbl.wide.space * }
        { bbl.colon *
          s empty$ not
            { s * bbl.wide.space * }
            'skip$
          if$
        }
      if$
      title *
      sentence.case.title
        'change.sentence.case
        'skip$
      if$
      entry.numbered number empty$ not and
        { bbl.colon * number * }
        'skip$
      if$
    }
    { format.title.vol.num }
  if$
  format.btitle
  link.title
    'add.link
    'skip$
  if$
}

FUNCTION {format.booktitle.vol.num}
{ booktitle
  entry.numbered
    'skip$
    { format.volume.number 's :=
      s empty$ not
        { bbl.colon * s * }
        'skip$
      if$
    }
  if$
}

%    \end{macrocode}
%
%    \begin{macrocode}
FUNCTION {format.series.vol.num.booktitle}
{ format.volume.number 's :=
  series empty$ not
    { series bbl.colon *
      entry.numbered not s empty$ not and
        { s * bbl.wide.space * }
        'skip$
      if$
      booktitle *
    }
    { format.booktitle.vol.num }
  if$
  format.btitle
}

FUNCTION {remove.period}
{ 't :=
  "" 's :=
    { t empty$ not }
    { t #1 #1 substring$ 'tmp.str :=
      tmp.str "." = not
        { s tmp.str * 's := }
        'skip$
      if$
      t #2 global.max$ substring$ 't :=
    }
  while$
  s
}

FUNCTION {abbreviate}
{ remove.period
  't :=
  t "l" change.case$ 's :=
  ""
  s "physical review letters" =
    { "Phys Rev Lett" }
    'skip$
  if$
  's :=
  s empty$
    { t }
    { pop$ s }
  if$
}

FUNCTION {get.journal.title}
{ short.journal
    { shortjournal empty$ not
        { shortjournal }
        { journal empty$ not
            { journal abbreviate }
            { journaltitle empty$ not
                { journaltitle abbreviate }
                { "" }
              if$
            }
          if$
        }
      if$
    }
    { journal empty$ not
        { journal }
        { journaltitle empty$ not
            { journaltitle }
            { shortjournal empty$ not
                { shortjournal }
                { "" }
              if$
            }
          if$
        }
      if$
    }
  if$
}

FUNCTION {check.arxiv.preprint}
{ #1 #5 substring$ "l" change.case$ "arxiv" =
    { #1 }
    { #0 }
  if$
}

FUNCTION {format.journal}
{ get.journal.title
  duplicate$ empty$ not
    { italic.journal entry.lang lang.en = and
        'emphasize
        'skip$
      if$
    }
    'skip$
  if$
}

%    \end{macrocode}
%
% \subsubsection{Format entry type mark}
%
%    \begin{macrocode}
FUNCTION {set.entry.mark}
{ entry.mark empty$ not
    'pop$
    { mark empty$ not
        { pop$ mark 'entry.mark := }
        { 'entry.mark := }
      if$
    }
  if$
}

FUNCTION {format.mark}
{ show.mark
    { entry.mark
      show.medium.type
        { medium empty$ not
            { "/" * medium * }
            { entry.is.electronic
                { "/OL" * }
                'skip$
              if$
            }
          if$
        }
        'skip$
      if$
      'entry.mark :=
      space.before.mark
        { " " }
        { "\allowbreak" }
      if$
      "[" * entry.mark * "]" *
    }
    { "" }
  if$
}

%    \end{macrocode}
%
% \subsubsection{Format edition}
%
% The format.edition function appends " edition" to the edition, if present.
% We lowercase the edition (it should be something like "Third"), because
% this doesn't start a sentence.
%    \begin{macrocode}
FUNCTION {num.to.ordinal}
{ duplicate$ text.length$ 'charptr :=
  duplicate$ charptr #1 substring$ 's :=
  s "1" =
    { "st" * }
    { s "2" =
        { "nd" * }
        { s "3" =
            { "rd" * }
            { "th" * }
          if$
        }
      if$
    }
  if$
}

FUNCTION {format.edition}
{ edition empty$
    { "" }
    { edition is.number
        { edition "1" = not
            { entry.lang lang.zh =
                { edition " 版" * }
                { edition num.to.ordinal " ed." * }
              if$
            }
            'skip$
          if$
        }
        { entry.lang lang.en =
            { edition change.sentence.case 's :=
              s "Revised" = s "Revised edition" = or
                { "Rev. ed." }
                { s " ed." * }
              if$
            }
            { edition }
          if$
        }
      if$
    }
  if$
}

%    \end{macrocode}
%
% \subsubsection{Format publishing items}
%
% 出版地址和出版社会有 “[S.l.: s.n.]” 的情况,所以必须一起处理。
%    \begin{macrocode}
FUNCTION {format.publisher}
{ publisher empty$ not
    { publisher }
    { school empty$ not
        { school }
        { organization empty$ not
            { organization }
            { institution empty$ not
                { institution }
                { "" }
              if$
            }
          if$
        }
      if$
    }
  if$
}

FUNCTION {format.address.publisher}
{ address empty$ not
    { address }
    { location empty$ not
        { location }
        { "" }
      if$
    }
  if$
  duplicate$ empty$ not
    { format.publisher empty$ not
        { bbl.colon * format.publisher * }
        { entry.is.electronic not show.missing.address.publisher and
            { bbl.colon * bbl.sine.nomine * }
            'skip$
          if$
        }
      if$
    }
    { pop$
      entry.is.electronic not show.missing.address.publisher and
        { format.publisher empty$ not
            { bbl.sine.loco bbl.colon * format.publisher * }
            { bbl.sine.loco.sine.nomine }
          if$
        }
        { format.publisher empty$ not
            { format.publisher }
            { "" }
          if$
        }
      if$
    }
  if$
}

%    \end{macrocode}
%
% \subsubsection{Format date}
%
% The format.date function is for the month and year, but we give a warning if
% there's an empty year but the month is there, and we return the empty string
% if they're both empty.
%
% 期刊需要著录起止范围,其中年份使用“/”分隔,卷和期使用“--”分隔。
% 版本 v2.0.2 前的年份也使用“--”分隔,仅提供兼容性,不再推荐。
%    \begin{macrocode}
FUNCTION {extract.before.dash}
{ duplicate$ empty$
    { pop$ "" }
    { 's :=
      #1 'charptr :=
      s text.length$ #1 + 'len :=
        { charptr len <
          s charptr #1 substring$ "-" = not
          and
        }
        { charptr #1 + 'charptr := }
      while$
      s #1 charptr #1 - substring$
    }
  if$
}

FUNCTION {extract.after.dash}
{ duplicate$ empty$
    { pop$ "" }
    { 's :=
      #1 'charptr :=
      s text.length$ #1 + 'len :=
        { charptr len <
          s charptr #1 substring$ "-" = not
          and
        }
        { charptr #1 + 'charptr := }
      while$
        { charptr len <
          s charptr #1 substring$ "-" =
          and
        }
        { charptr #1 + 'charptr := }
      while$
      s charptr global.max$ substring$
    }
  if$
}

FUNCTION {extract.before.slash}
{ duplicate$ empty$
    { pop$ "" }
    { 's :=
      #1 'charptr :=
      s text.length$ #1 + 'len :=
        { charptr len <
          s charptr #1 substring$ "/" = not
          and
        }
        { charptr #1 + 'charptr := }
      while$
      s #1 charptr #1 - substring$
    }
  if$
}

FUNCTION {extract.after.slash}
{ duplicate$ empty$
    { pop$ "" }
    { 's :=
      #1 'charptr :=
      s text.length$ #1 + 'len :=
        { charptr len <
          s charptr #1 substring$ "-" = not
          and
          s charptr #1 substring$ "/" = not
          and
        }
        { charptr #1 + 'charptr := }
      while$
        { charptr len <
          s charptr #1 substring$ "-" =
          s charptr #1 substring$ "/" =
          or
          and
        }
        { charptr #1 + 'charptr := }
      while$
      s charptr global.max$ substring$
    }
  if$
}

%    \end{macrocode}
%
% 著者-出版年制必须提取出年份
%    \begin{macrocode}
FUNCTION {format.year}
{ year empty$ not
    { year extract.before.slash extra.label * }
    { date empty$ not
        { date extract.before.dash extra.label * }
        { entry.is.electronic not
            { "empty year in " cite$ * warning$ }
            'skip$
          if$
          urldate empty$ not
            { "[" urldate extract.before.dash * extra.label * "]" * }
            { "" }
          if$
        }
      if$
    }
  if$
}

FUNCTION {format.periodical.year}
{ year empty$ not
    { year extract.before.slash
      "--" *
      year extract.after.slash
      duplicate$ empty$
        'pop$
        { * }
      if$
    }
    { date empty$ not
        { date extract.before.dash }
        { "empty year in " cite$ * warning$
          urldate empty$ not
            { "[" urldate extract.before.dash * "]" * }
            { "" }
          if$
        }
      if$
    }
  if$
}

%    \end{macrocode}
%
% 专利和报纸都是使用日期而不是年
%    \begin{macrocode}
FUNCTION {format.date}
{ date empty$ not
    { type$ "patent" = type$ "newspaper" = or
        { date }
        { entrysubtype empty$ not
            { type$ "article" = entrysubtype "newspaper" = and
                { date }
                { format.year }
              if$
            }
            { format.year }
          if$
        }
      if$
    }
    { year empty$ not
        { format.year }
        { "" }
      if$
    }
  if$
}

%    \end{macrocode}
%
% 更新、修改日期只用于电子资源 electronic
%    \begin{macrocode}
FUNCTION {format.editdate}
{ date empty$ not
    { "\allowbreak(" date * ")" * }
    { "" }
  if$
}

%    \end{macrocode}
%
% 国标中的“引用日期”都是与 URL 同时出现的,所以其实为 urldate,这个虽然
% 不是 \BibTeX{} 标准的域,但是实际中很常见。
%    \begin{macrocode}
FUNCTION {format.urldate}
{ show.urldate show.url and entry.url empty$ not and
  is.pure.electronic or
  urldate empty$ not and
    { "\allowbreak[" urldate * "]" * }
    { "" }
  if$
}

%    \end{macrocode}
%
% \subsubsection{Format pages}
%
% By default, BibTeX sets the global integer variable |global.max$| to the BibTeX
% constant |glob_str_size|, the maximum length of a global string variable.
% Analogously, BibTeX sets the global integer variable |entry.max$| to
% |ent_str_size|, the maximum length of an entry string variable.
% The style designer may change these if necessary (but this is unlikely)
%
% The n.dashify function makes each single |`-'| in a string a double |`--'|
% if it's not already
%
% \begin{pseudocode}
% pseudoVAR: pageresult: STRING         (it's what's accumulated on the stack)
%
% n.dashify(s) ==
%  BEGIN
%       t := s
%       pageresult := ""
%       while (not empty$(t))
%         do
%           if (first character of t = "-")
%             then
%               if (next character isn't)
%                 then
%                   pageresult := pageresult * "--"
%                   t := t with the "-" removed
%                 else
%                   while (first character of t = "-")
%                     do
%                       pageresult := pageresult * "-"
%                       t := t with the "-" removed
%                     od
%               fi
%             else
%               pageresult := pageresult * the first character
%               t := t with the first character removed
%           fi
%         od
%       return pageresult
%  END
% \end{pseudocode}
%
% 国标里页码范围的连接号使用 hyphen,需要将 dash 转为 hyphen。
%    \begin{macrocode}
FUNCTION {hyphenate}
{ 't :=
  ""
    { t empty$ not }
    { t #1 #1 substring$ "-" =
        { wave.dash.in.pages
            { "~" * }
            { "-" * }
          if$
            { t #1 #1 substring$ "-" = }
            { t #2 global.max$ substring$ 't := }
          while$
        }
        { t #1 #1 substring$ *
          t #2 global.max$ substring$ 't :=
        }
      if$
    }
  while$
}

%    \end{macrocode}
%
% This function doesn't begin a sentence so "pages" isn't capitalized.
% Other functions that use this should keep that in mind.
%    \begin{macrocode}
FUNCTION {format.pages}
{ pages empty$
    { "" }
    { pages hyphenate }
  if$
}

FUNCTION {format.extracted.pages}
{ pages empty$
    { "" }
    { pages
      only.start.page
        'extract.before.dash
        'hyphenate
      if$
    }
  if$
}

%    \end{macrocode}
%
% The |format.vol.num.pages| function is for the volume, number, and page range
% of a journal article.  We use the format:  vol(number):pages, with some
% variations for empty fields.  This doesn't begin a sentence.
%
% 报纸在卷号缺失时,期号与前面的日期直接相连,所以必须拆开输出。
%    \begin{macrocode}
FUNCTION {format.journal.volume}
{ volume empty$ not
    { bold.journal.volume
        { "\textbf{" volume * "}" * }
        { volume }
      if$
    }
    { "" }
  if$
}

FUNCTION {format.journal.number}
{ number empty$ not
    { "\allowbreak (" number * ")" * }
    { "" }
  if$
}

FUNCTION {format.journal.pages}
{ pages empty$
    { "" }
    { format.extracted.pages }
  if$
}

%    \end{macrocode}
%
% 连续出版物的年卷期有起止范围,需要特殊处理
%    \begin{macrocode}
FUNCTION {format.periodical.year.volume.number}
{ year empty$ not
    { year extract.before.slash }
    { "empty year in periodical " cite$ * warning$ }
  if$
  volume empty$ not
    { ", " * volume extract.before.dash * }
    'skip$
  if$
  number empty$ not
    { "\allowbreak (" * number extract.before.dash * ")" * }
    'skip$
  if$
  "--" *
  year extract.after.slash empty$
  volume extract.after.dash empty$ and
  number extract.after.dash empty$ and not
    { year extract.after.slash empty$ not
        { year extract.after.slash * }
        { year extract.before.slash * }
      if$
      volume empty$ not
        { ", " * volume extract.after.dash * }
        'skip$
      if$
      number empty$ not
        { "\allowbreak (" * number extract.after.dash * ")" * }
        'skip$
      if$
    }
    'skip$
  if$
}

%    \end{macrocode}
%
% \subsubsection{Format url and doi}
%
% 传统的 \BibTeX{} 习惯使用 howpublished 著录 url,这里提供支持。
%    \begin{macrocode}
FUNCTION {check.url}
{ url empty$ not
    { "\url{" url * "}" * 'entry.url :=
      #1 'entry.is.electronic :=
    }
    { howpublished empty$ not
        { howpublished #1 #5 substring$ "\url{" =
            { howpublished 'entry.url :=
              #1 'entry.is.electronic :=
            }
            'skip$
          if$
        }
        { note empty$ not
            { note #1 #5 substring$ "\url{" =
                { note 'entry.url :=
                  #1 'entry.is.electronic :=
                }
                'skip$
              if$
            }
            'skip$
          if$
        }
      if$
    }
  if$
}

FUNCTION {output.url}
{ show.url is.pure.electronic or
  entry.url empty$ not and
    { new.block
      entry.url output
    }
    'skip$
  if$
}

%    \end{macrocode}
%
% 需要检测 DOI 是否已经包含在 URL 中。
%    \begin{macrocode}
FUNCTION {check.doi}
{ doi empty$ not
    { #1 'entry.is.electronic := }
    'skip$
  if$
}

FUNCTION {is.in.url}
{ 's :=
  s empty$
    { #1 }
    { entry.url empty$
        { #0 }
        { s text.length$ 'len :=
          entry.url text.length$ 'charptr :=
            { entry.url charptr len substring$ s = not
              charptr #0 >
              and
            }
            { charptr #1 - 'charptr := }
          while$
          charptr
        }
      if$
    }
  if$
}

FUNCTION {format.doi}
{ ""
  doi empty$ not
    { "" 's :=
      doi 't :=
      #0 'numnames :=
        { t empty$ not}
        { t #1 #1 substring$ 'tmp.str :=
          tmp.str "," = tmp.str " " = or t #2 #1 substring$ empty$ or
            { t #2 #1 substring$ empty$
                { s tmp.str * 's := }
                'skip$
              if$
              s empty$ s is.in.url or
                'skip$
                { numnames #1 + 'numnames :=
                  numnames #1 >
                    { ", " * }
                    { "DOI: " * }
                  if$
                  "\doi{" s * "}" * *
                }
              if$
              "" 's :=
            }
            { s tmp.str * 's := }
          if$
          t #2 global.max$ substring$ 't :=
        }
      while$
    }
    'skip$
  if$
}

FUNCTION {output.doi}
{ doi empty$ not show.doi and
  show.english.translation entry.lang lang.zh = and not and
    { new.block
      format.doi output
    }
    'skip$
  if$
}

FUNCTION {check.electronic}
{ "" 'entry.url :=
  #0 'entry.is.electronic :=
    'check.doi
    'skip$
  if$
    'check.url
    'skip$
  if$
  medium empty$ not
    { medium "MT" = medium "DK" = or medium "CD" = or medium "OL" = or
        { #1 'entry.is.electronic := }
        'skip$
      if$
    }
    'skip$
  if$
}

FUNCTION {format.eprint}
{ archivePrefix empty$ not
    { archivePrefix }
    { eprinttype empty$ not
        { archivePrefix }
        { "" }
      if$
    }
  if$
  's :=
  s empty$ not
    { s ": \eprint{" *
      url empty$ not
        { url }
        { "https://" s "l" change.case$ * ".org/abs/" * eprint * }
      if$
      * "}{" *
      eprint * "}" *
    }
    { eprint }
  if$
}

FUNCTION {output.eprint}
{ show.preprint eprint empty$ not and
    { new.block
      format.eprint output
    }
    'skip$
  if$
}

FUNCTION {format.note}
{ note empty$ not show.note and
    { note }
    { "" }
  if$
}

FUNCTION {output.translation}
{ show.english.translation entry.lang lang.zh = and
    { translation empty$ not
        { translation }
        { "[English translation missing!]" }
      if$
      " (in Chinese)" * output
      write$
      format.doi duplicate$ empty$ not
        { newline$
          write$
        }
        'pop$
      if$
      " \\" write$
      newline$
      "(" write$
      ""
      before.all 'output.state :=
    }
    'skip$
  if$
}

%    \end{macrocode}
%
% The function empty.misc.check complains if all six fields are empty, and
% if there's been no sorting or alphabetic-label complaint.
%    \begin{macrocode}
FUNCTION {empty.misc.check}
{ author empty$ title empty$
  year empty$
  and and
  key empty$ not and
    { "all relevant fields are empty in " cite$ * warning$ }
    'skip$
  if$
}

%    \end{macrocode}
%
%
% \subsection{Functions for all entry types}
%
% Now we define the type functions for all entry types that may appear
% in the .BIB file---e.g., functions like `article' and `book'.  These
% are the routines that actually generate the .BBL-file output for
% the entry.  These must all precede the READ command.  In addition, the
% style designer should have a function `default.type' for unknown types.
% Note: The fields (within each list) are listed in order of appearance,
% except as described for an `inbook' or a `proceedings'.
%
% \subsubsection{专著}
%
%    \begin{macrocode}
FUNCTION {monograph}
{ output.bibitem
  output.translation
  author empty$ not
    { format.authors }
    { editor empty$ not
        { format.editors }
        { "empty author and editor in " cite$ * warning$
%<*author-year>
          bbl.anonymous
%</author-year>
%<*numerical>
          ""
%</numerical>
        }
      if$
    }
  if$
  output
  year.after.author
    { period.after.author
        'new.sentence
        'skip$
      if$
      format.year "year" output.check
    }
    'skip$
  if$
  new.block
  format.series.vol.num.title "title" output.check
  "M" set.entry.mark
  format.mark "" output.after
  new.block
  format.translators output
  new.sentence
  format.edition output
  new.block
  format.address.publisher output
  year.after.author not
    { format.year "year" output.check }
    'skip$
  if$
  format.pages bbl.pages.colon output.after
  format.urldate "" output.after
  output.url
  output.doi
  new.block
  format.note output
  fin.entry
}

%    \end{macrocode}
%
% \subsubsection{专著中的析出文献}
%
% An incollection is like inbook, but where there is a separate title
% for the referenced thing (and perhaps an editor for the whole).
% An incollection may CROSSREF a book.
%
%       Required: author, title, booktitle, publisher, year
%
%       Optional: editor, volume or number, series, type, chapter, pages,
%                       address, edition, month, note
%    \begin{macrocode}
FUNCTION {incollection}
{ output.bibitem
  output.translation
  format.authors output
  author format.key output
  year.after.author
    { period.after.author
        'new.sentence
        'skip$
      if$
      format.year "year" output.check
    }
    'skip$
  if$
  new.block
  format.title "title" output.check
  "M" set.entry.mark
  format.mark "" output.after
  new.block
  format.translators output
  new.slash
  format.editors output
  new.block
  format.series.vol.num.booktitle "booktitle" output.check
  new.block
  format.edition output
  new.block
  format.address.publisher output
  year.after.author not
    { format.year "year" output.check }
    'skip$
  if$
  format.extracted.pages bbl.pages.colon output.after
  format.urldate "" output.after
  output.url
  output.doi
  new.block
  format.note output
  fin.entry
}

%    \end{macrocode}
%
% \subsubsection{连续出版物}
%
%    \begin{macrocode}
FUNCTION {periodical}
{ output.bibitem
  output.translation
  format.authors output
  author format.key output
  year.after.author
    { period.after.author
        'new.sentence
        'skip$
      if$
      format.year "year" output.check
    }
    'skip$
  if$
  new.block
  format.title "title" output.check
  "J" set.entry.mark
  format.mark "" output.after
  new.block
  format.periodical.year.volume.number output
  new.block
  format.address.publisher output
  year.after.author not
    { format.periodical.year "year" output.check }
    'skip$
  if$
  format.urldate "" output.after
  output.url
  output.doi
  new.block
  format.note output
  fin.entry
}

%    \end{macrocode}
%
% \subsubsection{连续出版物中的析出文献}
%
% The article function is for an article in a journal.  An article may
% CROSSREF another article.
%
%       Required fields: author, title, journal, year
%
%       Optional fields: volume, number, pages, month, note
%
% The other entry functions are all quite similar, so no "comment version"
% will be given for them.
%    \begin{macrocode}
FUNCTION {journal.article}
{ output.bibitem
  output.translation
  format.authors output
  author format.key output
  year.after.author
    { period.after.author
        'new.sentence
        'skip$
      if$
      format.year "year" output.check
    }
    'skip$
  if$
  new.block
  title.in.journal
    { format.title "title" output.check
      entrysubtype empty$ not
        {
          entrysubtype "newspaper" =
            { "N" set.entry.mark }
            { "J" set.entry.mark }
          if$
        }
        { "J" set.entry.mark }
      if$
      format.mark "" output.after
      new.block
    }
    'skip$
  if$
  format.journal "journal" output.check
  year.after.author not
    { format.date "year" output.check }
    'skip$
  if$
  format.journal.volume output
  format.journal.number "" output.after
  format.journal.pages bbl.pages.colon output.after
  format.urldate "" output.after
  output.url
  output.doi
  new.block
  format.note output
  fin.entry
}

%    \end{macrocode}
%
% \subsubsection{专利文献}
%
% number 域也可以用来表示专利号。
%    \begin{macrocode}
FUNCTION {patent}
{ output.bibitem
  output.translation
  format.authors output
  author format.key output
  year.after.author
    { period.after.author
        'new.sentence
        'skip$
      if$
      format.year "year" output.check
    }
    'skip$
  if$
  new.block
  format.title "title" output.check
  "P" set.entry.mark
  format.mark "" output.after
  new.block
  format.date "year" output.check
  format.urldate "" output.after
  output.url
  output.doi
  new.block
  format.note output
  fin.entry
}

%    \end{macrocode}
%
% \subsubsection{电子资源}
%    \begin{macrocode}
FUNCTION {electronic}
{ #1 #1 check.electronic
  #1 'entry.is.electronic :=
  #1 'is.pure.electronic :=
  output.bibitem
  output.translation
  format.authors output
  author format.key output
  year.after.author
    { period.after.author
        'new.sentence
        'skip$
      if$
      format.year "year" output.check
    }
    'skip$
  if$
  new.block
  format.series.vol.num.title "title" output.check
  "EB" set.entry.mark
  format.mark "" output.after
  new.block
  format.address.publisher output
  year.after.author not
    { date empty$
        { format.date output }
        'skip$
      if$
    }
    'skip$
  if$
  format.pages bbl.pages.colon output.after
  format.editdate "" output.after
  format.urldate "" output.after
  output.url
  output.doi
  new.block
  format.note output
  fin.entry
}

%    \end{macrocode}
%
% \subsubsection{预印本}
%
%    \begin{macrocode}
FUNCTION {preprint}
{ output.bibitem
  output.translation
  author empty$ not
    { format.authors }
    { editor empty$ not
        { format.editors }
        { "empty author and editor in " cite$ * warning$
%<*author-year>
          bbl.anonymous
%</author-year>
%<*numerical>
          ""
%</numerical>
        }
      if$
    }
  if$
  output
  year.after.author
    { period.after.author
        'new.sentence
        'skip$
      if$
      format.year "year" output.check
    }
    'skip$
  if$
  new.block
  title.in.journal
    { format.series.vol.num.title "title" output.check
%<*2015>
      "A" set.entry.mark
%</2015>
%<*!2015>
      "Z" set.entry.mark
%</!2015>
      format.mark "" output.after
      new.block
    }
    'skip$
  if$
  format.translators output
  new.sentence
  format.edition output
  new.block
  year.after.author not
    { date empty$
        { format.date output }
        'skip$
      if$
    }
    'skip$
  if$
  format.pages bbl.pages.colon output.after
  format.editdate "" output.after
  format.urldate "" output.after
  output.eprint
  output.url
  new.block
  format.note output
  fin.entry
}

%    \end{macrocode}
%
% \subsubsection{其他文献类型}
%
% A misc is something that doesn't fit elsewhere.
%
%       Required: at least one of the `optional' fields
%
%       Optional: author, title, howpublished, month, year, note
%
% Misc 用来自动判断类型。
%    \begin{macrocode}
FUNCTION {misc}
{ get.journal.title
  duplicate$ empty$ not
    { check.arxiv.preprint
        'preprint
        'journal.article
      if$
    }
    { pop$
      booktitle empty$ not
        'incollection
        { publisher empty$ not
            'monograph
            { eprint empty$ not archivePrefix empty$ not or
                'preprint
                { entry.is.electronic
                    'electronic
                    {
%<*!2005>
                      "Z" set.entry.mark
%</!2005>
%<*2005>
                      "M" set.entry.mark
%</2005>
                      monograph
                    }
                  if$
                }
              if$
            }
          if$
        }
      if$
    }
  if$
  empty.misc.check
}

FUNCTION {archive}
{ "A" set.entry.mark
  misc
}

FUNCTION {article} { misc }

%    \end{macrocode}
%
% The book function is for a whole book.  A book may CROSSREF another book.
%
%       Required fields: author or editor, title, publisher, year
%
%       Optional fields: volume or number, series, address, edition, month,
%                       note
%    \begin{macrocode}
FUNCTION {book} { monograph }

%    \end{macrocode}
%
% A booklet is a bound thing without a publisher or sponsoring institution.
%
%       Required: title
%
%       Optional: author, howpublished, address, month, year, note
%    \begin{macrocode}
FUNCTION {booklet} { book }

FUNCTION {collection}
{ "G" set.entry.mark
  monograph
}

FUNCTION {database}
{ "DB" set.entry.mark
  electronic
}

FUNCTION {dataset}
{ "DS" set.entry.mark
  electronic
}

%    \end{macrocode}
%
% An inbook is a piece of a book: either a chapter and/or a page range.
% It may CROSSREF a book.  If there's no volume field, the type field
% will come before number and series.
%
%       Required: author or editor, title, chapter and/or pages, publisher,year
%
%       Optional: volume or number, series, type, address, edition, month, note
%
% inbook 类是不含 booktitle 域的,所以不应该适用于“专著中的析出文献”,而应该是专
% 著,即 book 类。
%    \begin{macrocode}
FUNCTION {inbook} { book }

%    \end{macrocode}
%
% An inproceedings is an article in a conference proceedings, and it may
% CROSSREF a proceedings.  If there's no address field, the month (\& year)
% will appear just before note.
%
%       Required: author, title, booktitle, year
%
%       Optional: editor, volume or number, series, pages, address, month,
%                       organization, publisher, note
%    \begin{macrocode}
FUNCTION {inproceedings}
{ "C" set.entry.mark
  incollection
}

%    \end{macrocode}
%
% The conference function is included for Scribe compatibility.
%    \begin{macrocode}
FUNCTION {conference} { inproceedings }

FUNCTION {legislation} { archive }


FUNCTION {map}
{ "CM" set.entry.mark
  misc
}

%    \end{macrocode}
%
% A manual is technical documentation.
%
%       Required: title
%
%       Optional: author, organization, address, edition, month, year, note
%    \begin{macrocode}
FUNCTION {manual} { monograph }

%    \end{macrocode}
%
% A mastersthesis is a Master's thesis.
%
%       Required: author, title, school, year
%
%       Optional: type, address, month, note
%    \begin{macrocode}
FUNCTION {mastersthesis}
{ "D" set.entry.mark
  monograph
}

FUNCTION {newspaper}
{ "N" set.entry.mark
  article
}

FUNCTION {online}
{ "EB" set.entry.mark
  electronic
}

%    \end{macrocode}
%
% A phdthesis is like a mastersthesis.
%
%       Required: author, title, school, year
%
%       Optional: type, address, month, note
%    \begin{macrocode}
FUNCTION {phdthesis} { mastersthesis }

%    \end{macrocode}
%
% A proceedings is a conference proceedings.
% If there is an organization but no editor field, the organization will
% appear as the first optional field (we try to make the first block nonempty);
% if there's no address field, the month (\& year) will appear just before note.
%
%       Required: title, year
%
%       Optional: editor, volume or number, series, address, month,
%                       organization, publisher, note
%    \begin{macrocode}
FUNCTION {proceedings}
{ "C" set.entry.mark
  monograph
}

FUNCTION {software}
{ "CP" set.entry.mark
  electronic
}

FUNCTION {standard}
{ "S" set.entry.mark
  misc
}

%    \end{macrocode}
%
% A techreport is a technical report.
%
%       Required: author, title, institution, year
%
%       Optional: type, number, address, month, note
%    \begin{macrocode}
FUNCTION {techreport}
{ "R" set.entry.mark
  misc
}

%    \end{macrocode}
%
% An unpublished is something that hasn't been published.
%
%       Required: author, title, note
%
%       Optional: month, year
%    \begin{macrocode}
FUNCTION {unpublished} { misc }

%    \end{macrocode}
%
% We use entry type `misc' for an unknown type; BibTeX gives a warning.
%    \begin{macrocode}
FUNCTION {default.type} { misc }

%    \end{macrocode}
%
%
% \subsection{Common macros}
%
% Here are macros for common things that may vary from style to style.
% Users are encouraged to use these macros.
%
% Months are either written out in full or abbreviated
%    \begin{macrocode}
MACRO {jan} {"January"}

MACRO {feb} {"February"}

MACRO {mar} {"March"}

MACRO {apr} {"April"}

MACRO {may} {"May"}

MACRO {jun} {"June"}

MACRO {jul} {"July"}

MACRO {aug} {"August"}

MACRO {sep} {"September"}

MACRO {oct} {"October"}

MACRO {nov} {"November"}

MACRO {dec} {"December"}

%    \end{macrocode}
%
% Journals are either written out in full or abbreviated;
% the abbreviations are like those found in ACM publications.
%
% To get a completely different set of abbreviations, it may be best to make
% a separate .bib file with nothing but those abbreviations; users could then
% include that file name as the first argument to the \cs{bibliography} command
%    \begin{macrocode}
MACRO {acmcs} {"ACM Computing Surveys"}

MACRO {acta} {"Acta Informatica"}

MACRO {cacm} {"Communications of the ACM"}

MACRO {ibmjrd} {"IBM Journal of Research and Development"}

MACRO {ibmsj} {"IBM Systems Journal"}

MACRO {ieeese} {"IEEE Transactions on Software Engineering"}

MACRO {ieeetc} {"IEEE Transactions on Computers"}

MACRO {ieeetcad}
 {"IEEE Transactions on Computer-Aided Design of Integrated Circuits"}

MACRO {ipl} {"Information Processing Letters"}

MACRO {jacm} {"Journal of the ACM"}

MACRO {jcss} {"Journal of Computer and System Sciences"}

MACRO {scp} {"Science of Computer Programming"}

MACRO {sicomp} {"SIAM Journal on Computing"}

MACRO {tocs} {"ACM Transactions on Computer Systems"}

MACRO {tods} {"ACM Transactions on Database Systems"}

MACRO {tog} {"ACM Transactions on Graphics"}

MACRO {toms} {"ACM Transactions on Mathematical Software"}

MACRO {toois} {"ACM Transactions on Office Information Systems"}

MACRO {toplas} {"ACM Transactions on Programming Languages and Systems"}

MACRO {tcs} {"Theoretical Computer Science"}

%    \end{macrocode}
%
%
% \subsection{Format labels}
%
% The sortify function converts to lower case after |purify$|ing; it's
% used in sorting and in computing alphabetic labels after sorting
%
% The chop.word(w,len,s) function returns either s or, if the first len
% letters of s equals w (this comparison is done in the third line of the
% function's definition), it returns that part of s after w.
%    \begin{macrocode}
FUNCTION {sortify}
{ purify$
  "l" change.case$
}

%    \end{macrocode}
%
% We need the chop.word stuff for the dubious unsorted-list-with-labels case.
%    \begin{macrocode}
FUNCTION {chop.word}
{ 's :=
  'len :=
  s #1 len substring$ =
    { s len #1 + global.max$ substring$ }
    's
  if$
}

%    \end{macrocode}
%
% The |format.lab.names| function makes a short label by using the initials of
% the von and Last parts of the names (but if there are more than four names,
% (i.e., people) it truncates after three and adds a superscripted "+";
% it also adds such a "+" if the last of multiple authors is "others").
% If there is only one name, and its von and Last parts combined have just
% a single name-token ("Knuth" has a single token, "Brinch Hansen" has two),
% we take the first three letters of the last name.  The boolean
% et.al.char.used tells whether we've used a superscripted "+", so that we
% know whether to include a LaTeX macro for it.
%
% \begin{pseudocode}
% format.lab.names(s) ==
%  BEGIN
%       numnames := num.names$(s)
%       if numnames > 1 then
%           if numnames > 4 then
%               namesleft := 3
%           else
%               namesleft := numnames
%           nameptr := 1
%           nameresult := ""
%           while namesleft > 0
%             do
%               if (name_ptr = numnames) and
%                    format.name$(s, nameptr, "{ff }{vv }{ll}{ jj}") = "others"
%                  then nameresult := nameresult * "{\etalchar{+}}"
%                       et.al.char.used := true
%                  else nameresult := nameresult *
%                               format.name$(s, nameptr, "{v{}}{l{}}")
%               nameptr := nameptr + 1
%               namesleft := namesleft - 1
%             od
%           if numnames > 4 then
%               nameresult := nameresult * "{\etalchar{+}}"
%               et.al.char.used := true
%       else
%           t := format.name$(s, 1, "{v{}}{l{}}")
%           if text.length$(t) < 2 then % there's just one name-token
%               nameresult := text.prefix$(format.name$(s,1,"{ll}"),3)
%           else
%               nameresult := t
%           fi
%       fi
%       return nameresult
%  END
% \end{pseudocode}
%
% Exactly what fields we look at in constructing the primary part of the label
% depends on the entry type; this selectivity (as opposed to, say, always
% looking at author, then editor, then key) helps ensure that "ignored" fields,
% as described in the LaTeX book, really are ignored.  Note that MISC is part
% of the deepest `else' clause in the nested part of calc.label; thus, any
% unrecognized entry type in the database is handled correctly.
%
% There is one auxiliary function for each of the four different sequences of
% fields we use.  The first of these functions looks at the author field, and
% then, if necessary, the key field.  The other three functions, which might
% look at two fields and the key field, are similar, except that the key field
% takes precedence over the organization field (for labels---not for sorting).
%
% The calc.label function calculates the preliminary label of an entry, which
% is formed by taking three letters of information from the author or editor or
% key or organization field (depending on the entry type and on what's empty,
% but ignoring a leading "The " in the organization), and appending the last
% two characters (digits) of the year. It is an error if the appropriate fields
% among author, editor, organization, and key are missing, and we use
% the first three letters of the |cite$| in desperation when this happens.
% The resulting label has the year part, but not the name part, |purify$|ed
% (|purify$|ing the year allows some sorting shenanigans by the user).
%
% This function also calculates the version of the label to be used in sorting.
%
% The final label may need a trailing 'a', 'b', etc., to distinguish it from
% otherwise identical labels, but we can't calculated those "extra.label"s
% until after sorting.
%
% \begin{pseudocode}
% calc.label ==
%  BEGIN
%       if type$ = "book" or "inbook" then
%           author.editor.key.label
%       else if type$ = "proceedings" then
%           editor.key.organization.label
%       else if type$ = "manual" then
%           author.key.organization.label
%       else
%           author.key.label
%       fi fi fi
%       label := label * substring$(purify$(field.or.null(year)), -1, 2)
%               % assuming we will also sort, we calculate a sort.label
%       sort.label := sortify(label), but use the last four, not two, digits
%  END
% \end{pseudocode}
%    \begin{macrocode}
FUNCTION {format.lab.name}
{ "{vv~}{ll}{, jj}{, ff}" format.name$ 't :=
  t "others" =
    { citation.et.al }
    { t get.str.lang 'name.lang :=
      name.lang lang.zh = name.lang lang.ja = or
        { t #1 "{ll}{ff}" format.name$ }
        { t #1 "{vv~}{ll}" format.name$ }
      if$
    }
  if$
}

%    \end{macrocode}
%
% 第一作者姓名相同、年份相同但作者数量不同时,也需要年份标签区分。
% 比如“王临惠\ 等, 2010a”和“王临惠, 2010b”,
% 所以使用 |short.label| 存储不带“et al”的版本。
%    \begin{macrocode}
FUNCTION {format.lab.names}
{ 's :=
  s #1 format.lab.name 'short.label :=
  #1 'nameptr :=
  s num.names$ 'numnames :=
  ""
  numnames 'namesleft :=
    { namesleft #0 > }
    { s nameptr format.lab.name citation.et.al =
      numnames citation.et.al.min #1 - > nameptr citation.et.al.use.first > and or
        { bbl.space *
          citation.et.al *
          #1 'namesleft :=
        }
        { nameptr #1 >
            { namesleft #1 = citation.and "" = not and
                { citation.and * }
                { ", " * }
              if$
            }
            'skip$
          if$
          s nameptr format.lab.name *
        }
      if$
      nameptr #1 + 'nameptr :=
      namesleft #1 - 'namesleft :=
    }
  while$
}

FUNCTION {author.key.label}
{ author empty$
    { key empty$
        { cite$ #1 #3 substring$ }
        'key
      if$
    }
    { author format.lab.names }
  if$
}

FUNCTION {author.editor.key.label}
{ author empty$
    { editor empty$
        { key empty$
            { cite$ #1 #3 substring$ }
            'key
          if$
        }
        { editor format.lab.names }
      if$
    }
    { author format.lab.names }
  if$
}

FUNCTION {author.key.organization.label}
{ author empty$
    { key empty$
        { organization empty$
            { cite$ #1 #3 substring$ }
            { "The " #4 organization chop.word #3 text.prefix$ }
          if$
        }
        'key
      if$
    }
    { author format.lab.names }
  if$
}

FUNCTION {editor.key.organization.label}
{ editor empty$
    { key empty$
        { organization empty$
            { cite$ #1 #3 substring$ }
            { "The " #4 organization chop.word #3 text.prefix$ }
          if$
        }
        'key
      if$
    }
    { editor format.lab.names }
  if$
}

FUNCTION {calc.short.authors}
{ "" 'short.label :=
  type$ "book" =
  type$ "inbook" =
  or
    'author.editor.key.label
    { type$ "collection" =
      type$ "proceedings" =
      or
        { editor empty$ not
            'editor.key.organization.label
            'author.key.organization.label
          if$
        }
        'author.key.label
      if$
    }
  if$
  'short.list :=
  short.label empty$
    { short.list 'short.label := }
    'skip$
  if$
}

%    \end{macrocode}
%
% 如果 label 中有中括号“[”,分别用大括号保护起来,防止 \cs{bibitem} 处理出错。
% 另外为了兼容 \pkg{bibunits},“name(year)fullname” 的每一项都要分别保护起来,
% 参考 \href{https://github.com/tuna/thuthesis/issues/630}{tuna/thuthesis/\#630}。
%    \begin{macrocode}
FUNCTION {calc.label}
{ calc.short.authors
  short.list "]" contains
    { "{" short.list * "}" * }
    { short.list }
  if$
  "("
  *
  format.year duplicate$ empty$
  short.list key field.or.null = or
     { pop$ "" }
     'skip$
  if$
  duplicate$ "]" contains
    { "{" swap$ * "}" * }
    'skip$
  if$
  *
  'label :=
  short.label
  "("
  *
  format.year duplicate$ empty$
  short.list key field.or.null = or
     { pop$ "" }
     'skip$
  if$
  *
  'short.label :=
}

%    \end{macrocode}
%
%
% \subsection{Sorting}
%
% When sorting, we compute the sortkey by executing "presort" on each entry.
% The presort key contains a number of "sortify"ed strings, concatenated
% with multiple blanks between them.  This makes things like "brinch  per"
% come before "brinch hansen  per".
%
% The fields used here are: the sort.label for alphabetic labels (as set by
% |calc.label|), followed by the author names (or editor names or organization
% (with a leading "The " removed) or key field, depending on entry type and on
% what's empty), followed by year, followed by the first bit of the title
% (chopping off a leading "The ", "A ", or "An ").
% Names are formatted: Von Last First Junior.
% The names within a part will be separated by a single blank
% (such as "brinch hansen"), two will separate the name parts themselves
% (except the von and last), three will separate the names,
% four will separate the names from year (and from label, if alphabetic),
% and four will separate year from title.
%
% The |sort.format.names| function takes an argument that should be in
% BibTeX name format, and returns a string containing "   "-separated
% names in the format described above.  The function is almost the same
% as format.names.
%    \begin{macrocode}
%<*author-year>
FUNCTION {sort.language.label}
{ entry.lang lang.zh =
    { lang.zh.order }
    { entry.lang lang.ja =
        { lang.ja.order }
        { entry.lang lang.en =
            { lang.en.order }
            { entry.lang lang.ru =
                { lang.ru.order }
                { lang.other.order }
              if$
            }
          if$
        }
      if$
    }
  if$
  #64 +
  int.to.chr$
}

FUNCTION {sort.format.names}
{ 's :=
  #1 'nameptr :=
  ""
  s num.names$ 'numnames :=
  numnames 'namesleft :=
    { namesleft #0 > }
    {
      s nameptr "{vv{ } }{ll{ }}{  ff{ }}{  jj{ }}" format.name$ 't :=
      nameptr #1 >
        {
          "   "  *
          namesleft #1 = t "others" = and
            { "zzzzz" * }
            { numnames #2 > nameptr #2 = and
                { "zz" * year field.or.null * "   " * }
                'skip$
              if$
              t sortify *
            }
          if$
        }
        { t sortify * }
      if$
      nameptr #1 + 'nameptr :=
      namesleft #1 - 'namesleft :=
    }
  while$
}

%    \end{macrocode}
%
% The sort.format.title function returns the argument,
% but first any leading "A "'s, "An "'s, or "The "'s are removed.
% The chop.word function uses s, so we need another string variable, t
%    \begin{macrocode}
FUNCTION {sort.format.title}
{ 't :=
  "A " #2
    "An " #3
      "The " #4 t chop.word
    chop.word
  chop.word
  sortify
  #1 global.max$ substring$
}

%    \end{macrocode}
%
% The auxiliary functions here, for the presort function, are analogous to
% the ones for calc.label; the same comments apply, except that the
% organization field takes precedence here over the key field.  For sorting
% purposes, we still remove a leading "The " from the organization field.
%    \begin{macrocode}
FUNCTION {anonymous.sort}
{ entry.lang lang.zh =
    { "yi4 ming2" }
    { "anon" }
  if$
}

FUNCTION {warn.empty.key}
{ entry.lang lang.zh =
    { "empty key in " cite$ * warning$ }
    'skip$
  if$
}

FUNCTION {author.sort}
{ key empty$
    { warn.empty.key
      author empty$
        { anonymous.sort }
        { author sort.format.names }
      if$
    }
    { key }
  if$
}

FUNCTION {author.editor.sort}
{ key empty$
    { warn.empty.key
      author empty$
        { editor empty$
            { anonymous.sort }
            { editor sort.format.names }
          if$
        }
        { author sort.format.names }
      if$
    }
    { key }
  if$
}

FUNCTION {author.organization.sort}
{ key empty$
    { warn.empty.key
      author empty$
        { organization empty$
            { anonymous.sort }
            { "The " #4 organization chop.word sortify }
          if$
        }
        { author sort.format.names }
      if$
    }
    { key }
  if$
}

FUNCTION {editor.organization.sort}
{ key empty$
    { warn.empty.key
      editor empty$
        { organization empty$
            { anonymous.sort }
            { "The " #4 organization chop.word sortify }
          if$
        }
        { editor sort.format.names }
      if$
    }
    { key }
  if$
}

%</author-year>
%    \end{macrocode}
%
% 顺序编码制的排序要简单得多
%    \begin{macrocode}
%<*numerical>
INTEGERS { seq.num }

FUNCTION {init.seq}
{ #0 'seq.num :=}

FUNCTION {int.to.fix}
{ "000000000" swap$ int.to.str$ *
  #-1 #10 substring$
}

%</numerical>
%    \end{macrocode}
%
% There is a limit, |entry.max$|, on the length of an entry string variable
% (which is what its |sort.key$| is), so we take at most that many characters
% of the constructed key, and hope there aren't many references that match
% to that many characters!
%    \begin{macrocode}
FUNCTION {presort}
{ set.entry.lang
  set.entry.numbered
  show.url show.doi check.electronic
  #0 'is.pure.electronic :=
  calc.label
  label sortify
  "    "
  *
%<*author-year>
  sort.language.label
  "    "
  *
  type$ "book" =
  type$ "inbook" =
  or
    'author.editor.sort
    { type$ "collection" =
      type$ "proceedings" =
      or
        'editor.organization.sort
        'author.sort
      if$
    }
  if$
  *
  "    "
  *
  year field.or.null sortify
  *
  "    "
  *
  cite$
  *
  #1 entry.max$ substring$
%</author-year>
%<*numerical>
  seq.num #1 + 'seq.num :=
  seq.num  int.to.fix
%</numerical>
  'sort.label :=
  sort.label *
  #1 entry.max$ substring$
  'sort.key$ :=
}

%    \end{macrocode}
%
% Now comes the final computation for alphabetic labels, putting in the 'a's
% and 'b's and so forth if required.  This involves two passes: a forward
% pass to put in the 'b's, 'c's and so on, and a backwards pass
% to put in the 'a's (we don't want to put in 'a's unless we know there
% are 'b's).
% We have to keep track of the longest (in |width$| terms) label, for use
% by the "thebibliography" environment.
%
% \begin{pseudocode}
% VAR: longest.label, last.sort.label, next.extra: string
%      longest.label.width, last.extra.num: integer
%
% initialize.longest.label ==
%  BEGIN
%       longest.label := ""
%       last.sort.label := int.to.chr$(0)
%       next.extra := ""
%       longest.label.width := 0
%       last.extra.num := 0
%  END
%
% forward.pass ==
%  BEGIN
%       if last.sort.label = sort.label then
%           last.extra.num := last.extra.num + 1
%           extra.label := int.to.chr$(last.extra.num)
%       else
%           last.extra.num := chr.to.int$("a")
%           extra.label := ""
%           last.sort.label := sort.label
%       fi
%  END
%
% reverse.pass ==
%  BEGIN
%       if next.extra = "b" then
%           extra.label := "a"
%       fi
%       label := label * extra.label
%       if width$(label) > longest.label.width then
%           longest.label := label
%           longest.label.width := width$(label)
%       fi
%       next.extra := extra.label
%  END
% \end{pseudocode}
%    \begin{macrocode}
STRINGS { longest.label last.label next.extra last.extra.label }

INTEGERS { longest.label.width number.label }

FUNCTION {initialize.longest.label}
{ "" 'longest.label :=
  #0 int.to.chr$ 'last.label :=
  "" 'next.extra :=
  #0 'longest.label.width :=
  #0 'number.label :=
  "" 'last.extra.label :=
}

FUNCTION {forward.pass}
{
%<*author-year>
  last.label short.label =
    { "" 'extra.label :=
      last.extra.label text.length$ 'charptr :=
        { last.extra.label charptr #1 substring$ "z" =
          charptr #0 > and
        }
        { "a" extra.label * 'extra.label :=
          charptr #1 - 'charptr :=
        }
      while$
      charptr #0 >
        { last.extra.label charptr #1 substring$ chr.to.int$ #1 + int.to.chr$
          extra.label * 'extra.label :=
          last.extra.label #1 charptr #1 - substring$
          extra.label * 'extra.label :=
        }
        { "a" extra.label * 'extra.label := }
      if$
      extra.label 'last.extra.label :=
    }
    { "a" 'last.extra.label :=
      "" 'extra.label :=
      short.label 'last.label :=
    }
  if$
%</author-year>
  number.label #1 + 'number.label :=
}

FUNCTION {reverse.pass}
{
%<*author-year>
  next.extra "b" =
    { "a" 'extra.label := }
    'skip$
  if$
  extra.label 'next.extra :=
  extra.label
  duplicate$ empty$
    'skip$
    { "{\natexlab{" swap$ * "}}" * }
  if$
  'extra.label :=
%</author-year>
  label extra.label * 'label :=
}

FUNCTION {bib.sort.order}
{ sort.label  'sort.key$ :=
}

%    \end{macrocode}
%
%
% \subsection{Write bbl file}
%
% Now we're ready to start writing the .BBL file.
% We begin, if necessary, with a \LaTeX{} macro for unnamed names in an
% alphabetic label; next comes stuff from the `preamble' command in the
% database files.  Then we give an incantation containing the command
%     |\begin{thebibliography}{...}|
% where the `...' is the longest label.
%
% We also call init.state.consts, for use by the output routines.
%    \begin{macrocode}
FUNCTION {begin.bib}
{   preamble$ empty$
    'skip$
    { preamble$ write$ newline$ }
  if$
  "\begin{thebibliography}{" number.label int.to.str$ * "}" *
  write$ newline$
  terms.in.macro
    { "\providecommand{\biband}{和}"
      write$ newline$
      "\providecommand{\bibetal}{等}"
      write$ newline$
    }
    'skip$
  if$
  "\providecommand{\natexlab}[1]{#1}"
  write$ newline$
  "\providecommand{\url}[1]{#1}"
  write$ newline$
  "\expandafter\ifx\csname urlstyle\endcsname\relax\else"
  write$ newline$
  "  \urlstyle{same}\fi"
  write$ newline$
  "\expandafter\ifx\csname href\endcsname\relax"
  write$ newline$
  "  \DeclareUrlCommand\doi{\urlstyle{rm}}"
  write$ newline$
  "  \def\eprint#1#2{#2}"
      write$ newline$
  "\else"
  write$ newline$
  "  \def\doi#1{\href{https://doi.org/#1}{\nolinkurl{#1}}}"
  write$ newline$
  "  \let\eprint\href"
      write$ newline$
  "\fi"
      write$ newline$
    }

%    \end{macrocode}
%
% Finally, we finish up by writing the `|\end{thebibliography}|' command.
%    \begin{macrocode}
FUNCTION {end.bib}
{ newline$
  "\end{thebibliography}" write$ newline$
}

%    \end{macrocode}
%
%
% \subsection{Main execution}
%
% Now we read in the .BIB entries.
%    \begin{macrocode}
READ

EXECUTE {init.state.consts}

EXECUTE {load.config}

%<*numerical>
EXECUTE {init.seq}

%</numerical>
ITERATE {presort}

%    \end{macrocode}
%
% And now we can sort
%    \begin{macrocode}
SORT

EXECUTE {initialize.longest.label}

ITERATE {forward.pass}

REVERSE {reverse.pass}

ITERATE {bib.sort.order}

SORT

EXECUTE {begin.bib}

%    \end{macrocode}
%
% Now we produce the output for all the entries
%    \begin{macrocode}
ITERATE {call.type$}

EXECUTE {end.bib}
%</author-year|numerical>
%    \end{macrocode}
% \end{environment}
%
% \Finale
\endinput