summaryrefslogtreecommitdiff
path: root/MdePkg/Library/BasePrintLib/PrintLib.c
blob: bbafeeaec53d54f42b89b7bc599d1bd6dc8dba86 (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
/** @file
  Print Library.

  Copyright (c) 2006, Intel Corporation<BR>
  All rights reserved. This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

  Module Name:  PrintLib.c

**/

#include "PrintLibInternal.h"

#define WARNING_STATUS_NUMBER          4
#define ERROR_STATUS_NUMBER            24

STATIC CONST CHAR8 *StatusString [] = {
  "Success",                      //  RETURN_SUCCESS                = 0
  "Warning Unknown Glyph",        //  RETURN_WARN_UNKNOWN_GLYPH     = 1
  "Warning Delete Failure",       //  RETURN_WARN_DELETE_FAILURE    = 2
  "Warning Write Failure",        //  RETURN_WARN_WRITE_FAILURE     = 3
  "Warning Buffer Too Small",     //  RETURN_WARN_BUFFER_TOO_SMALL  = 4
  "Load Error",                   //  RETURN_LOAD_ERROR             = 1  | MAX_BIT
  "Invalid Parameter",            //  RETURN_INVALID_PARAMETER      = 2  | MAX_BIT
  "Unsupported",                  //  RETURN_UNSUPPORTED            = 3  | MAX_BIT
  "Bad Buffer Size",              //  RETURN_BAD_BUFFER_SIZE        = 4  | MAX_BIT
  "Buffer Too Small",             //  RETURN_BUFFER_TOO_SMALL,      = 5  | MAX_BIT
  "Not Ready",                    //  RETURN_NOT_READY              = 6  | MAX_BIT
  "Device Error",                 //  RETURN_DEVICE_ERROR           = 7  | MAX_BIT
  "Write Protected",              //  RETURN_WRITE_PROTECTED        = 8  | MAX_BIT
  "Out of Resources",             //  RETURN_OUT_OF_RESOURCES       = 9  | MAX_BIT
  "Volume Corrupt",               //  RETURN_VOLUME_CORRUPTED       = 10 | MAX_BIT
  "Volume Full",                  //  RETURN_VOLUME_FULL            = 11 | MAX_BIT
  "No Media",                     //  RETURN_NO_MEDIA               = 12 | MAX_BIT
  "Media changed",                //  RETURN_MEDIA_CHANGED          = 13 | MAX_BIT
  "Not Found",                    //  RETURN_NOT_FOUND              = 14 | MAX_BIT
  "Access Denied",                //  RETURN_ACCESS_DENIED          = 15 | MAX_BIT
  "No Response",                  //  RETURN_NO_RESPONSE            = 16 | MAX_BIT
  "No mapping",                   //  RETURN_NO_MAPPING             = 17 | MAX_BIT
  "Time out",                     //  RETURN_TIMEOUT                = 18 | MAX_BIT
  "Not started",                  //  RETURN_NOT_STARTED            = 19 | MAX_BIT
  "Already started",              //  RETURN_ALREADY_STARTED        = 20 | MAX_BIT
  "Aborted",                      //  RETURN_ABORTED                = 21 | MAX_BIT
  "ICMP Error",                   //  RETURN_ICMP_ERROR             = 22 | MAX_BIT
  "TFTP Error",                   //  RETURN_TFTP_ERROR             = 23 | MAX_BIT
  "Protocol Error"                //  RETURN_PROTOCOL_ERROR         = 24 | MAX_BIT
};

/**
  Worker function that produces a Null-terminated string in an output buffer 
  based on a Null-terminated format string and a VA_LIST argument list.

  VSPrint function to process format and place the results in Buffer. Since a 
  VA_LIST is used this rountine allows the nesting of Vararg routines. Thus 
  this is the main print working routine

  @param  Buffer      Character buffer to print the results of the parsing
                      of Format into.
  @param  BufferSize  Maximum number of characters to put into buffer.
  @param  Flags       Intial flags value.
                      Can only have FORMAT_UNICODE and OUTPUT_UNICODE set
  @param  Format      Null-terminated format string.
  @param  Marker      Vararg list consumed by processing Format.

  @return Number of characters printed.

**/
UINTN
BasePrintLibVSPrint (
  OUT CHAR8        *Buffer,
  IN  UINTN        BufferSize,
  IN  UINTN        Flags,
  IN  CONST CHAR8  *Format,
  IN  VA_LIST      Marker
  )
{
  CHAR8           *OriginalBuffer;
  CHAR8           ValueBuffer[MAXIMUM_VALUE_CHARACTERS];
  UINTN           BytesPerOutputCharacter;
  UINTN           BytesPerFormatCharacter;
  UINTN           FormatMask;
  UINTN           FormatCharacter;
  UINTN           Width;
  UINTN           Precision;
  INT64           Value;
  CONST CHAR8     *ArgumentString;
  UINTN           Character;
  GUID            *TmpGuid;
  TIME            *TmpTime;
  UINTN           Count;
  UINTN           ArgumentMask;
  INTN            BytesPerArgumentCharacter;
  UINTN           ArgumentCharacter;
  BOOLEAN         Done;
  UINTN           Index;
  CHAR8           Prefix;
  BOOLEAN         ZeroPad;
  BOOLEAN         Comma;
  UINTN           Digits;
  UINTN           Radix;
  RETURN_STATUS   Status;

  if (BufferSize == 0) {
    return 0;
  }
  ASSERT (Buffer != NULL);

  OriginalBuffer = Buffer;

  if ((Flags & OUTPUT_UNICODE) != 0) {
    BytesPerOutputCharacter = 2;
  } else {
    BytesPerOutputCharacter = 1;
  }
  if ((Flags & FORMAT_UNICODE) != 0) {
    //
    // Make sure format string cannot contain more than PcdMaximumUnicodeStringLength
    // Unicode characters if PcdMaximumUnicodeStringLength is not zero. 
    //
    ASSERT (StrSize ((CHAR16 *) Format) != 0);
    BytesPerFormatCharacter = 2;
    FormatMask = 0xffff;
  } else {
    //
    // Make sure format string cannot contain more than PcdMaximumUnicodeStringLength
    // Ascii characters if PcdMaximumUnicodeStringLength is not zero. 
    //
    ASSERT (AsciiStrSize (Format) != 0);
    BytesPerFormatCharacter = 1;
    FormatMask = 0xff;
  }

  //
  // Reserve space for the Null terminator.
  //
  BufferSize--;

  //
  // Get the first character from the format string
  //
  FormatCharacter = (*Format | (*(Format + 1) << 8)) & FormatMask;

  //
  // Loop until the end of the format string is reached or the output buffer is full
  //
  while (FormatCharacter != 0 && BufferSize > 0) {
    //
    // Clear all the flag bits except those that may have been passed in
    //
    Flags &= (OUTPUT_UNICODE | FORMAT_UNICODE);

    //
    // Set the default width to zero, and the default precision to 1
    //
    Width     = 0;
    Precision = 1;
    Prefix    = 0;
    Comma     = FALSE;
    ZeroPad   = FALSE;
    Count     = 0;
    Digits    = 0;

    switch (FormatCharacter) {
    case '%':
      //
      // Parse Flags and Width
      //
      for (Done = FALSE; !Done; ) {
        Format += BytesPerFormatCharacter;
        FormatCharacter = (*Format | (*(Format + 1) << 8)) & FormatMask;
        switch (FormatCharacter) {
        case '.': 
          Flags |= PRECISION; 
          break;
        case '-': 
          Flags |= LEFT_JUSTIFY; 
          break;
        case '+': 
          Flags |= PREFIX_SIGN;  
          break;
        case ' ': 
          Flags |= PREFIX_BLANK; 
          break;
        case ',': 
          Flags |= COMMA_TYPE; 
          break;
        case 'L':
        case 'l': 
          Flags |= LONG_TYPE;    
          break;
        case '*':
          if ((Flags & PRECISION) == 0) {
            Flags |= PAD_TO_WIDTH;
            Width = VA_ARG (Marker, UINTN);
          } else {
            Precision = VA_ARG (Marker, UINTN);
          }
          break;
        case '0':
          if ((Flags & PRECISION) == 0) {
            Flags |= PREFIX_ZERO;
          }
        case '1':
        case '2':
        case '3':
        case '4':
        case '5':
        case '6':
        case '7':
        case '8':
        case '9':
          for (Count = 0; ((FormatCharacter >= '0') &&  (FormatCharacter <= '9')); ){
            Count = (Count * 10) + FormatCharacter - '0';
            Format += BytesPerFormatCharacter;
            FormatCharacter = (*Format | (*(Format + 1) << 8)) & FormatMask;
          }
          Format -= BytesPerFormatCharacter;
          if ((Flags & PRECISION) == 0) {
            Flags |= PAD_TO_WIDTH;
            Width = Count;
          } else {
            Precision = Count;
          }
          break;
        default:
          Done = TRUE;
          break;
        }
      } 

      //
      // Limit the maximum field width to the remaining characters in the output buffer
      //
      if (Width > BufferSize) {
        Width = BufferSize;
      }

      //
      // Handle each argument type
      //
      switch (FormatCharacter) {
      case 'p':
        if (sizeof (VOID *) > 4) {
          Flags |= LONG_TYPE;
        }
      case 'X':
        Flags |= PREFIX_ZERO;
        //
        // break skiped on purpose
        //
      case 'x':
        Flags |= RADIX_HEX;
        //
        // break skiped on purpose
        //
      case 'd':
        if ((Flags & LONG_TYPE) == 0) {
          Value = (VA_ARG (Marker, int));
        } else {
          Value = VA_ARG (Marker, INT64);
        }
        if ((Flags & PREFIX_BLANK) != 0) {
          Prefix = ' ';
        }
        if ((Flags & PREFIX_SIGN) != 0) {
          Prefix = '+';
        }
        if ((Flags & COMMA_TYPE) != 0) {
          Comma = TRUE;
        }
        if ((Flags & RADIX_HEX) == 0) {
          Radix = 10;
          if (Comma) {
            Flags &= (~PREFIX_ZERO);
            Precision = 1;
          }
          if (Value < 0) {
            Flags |= PREFIX_SIGN;
            Prefix = '-';
            Value = -Value;
          }
        } else {
          Radix = 16;
          Comma = FALSE;
          if ((Flags & LONG_TYPE) == 0 && Value < 0) {
            Value = (unsigned int)Value;
          }
        }
        //
        // Convert Value to a reversed string
        //
        Count = BasePrintLibValueToString (ValueBuffer, Value, Radix);
        if (Value == 0 && Precision == 0) {
          Count = 0;
        }
        ArgumentString = (CHAR8 *)ValueBuffer + Count;
        Digits = 3 - (Count % 3);
        if (Comma && Count != 0) {
          Count += ((Count - 1) / 3);
        }
        if (Prefix != 0) {
          Count++;
        }
        Flags |= ARGUMENT_REVERSED;
        ZeroPad = TRUE;
        if ((Flags & PREFIX_ZERO) != 0) {
          if ((Flags & PAD_TO_WIDTH) != 0) {
            if ((Flags & PRECISION) == 0) {
              Precision = Width;
            }
          }
        }
        break;

      case 's':
      case 'S':
        Flags |= ARGUMENT_UNICODE;
        //
        // break skipped on purpose
        //
      case 'a':
        ArgumentString = (CHAR8 *)VA_ARG (Marker, CHAR8 *);
        if (ArgumentString == NULL) {
          Flags &= (~ARGUMENT_UNICODE);
          ArgumentString = "<null string>";
        }
        break;

      case 'c':
        Character = VA_ARG (Marker, UINTN) & 0xffff;
        ArgumentString = (CHAR8 *)&Character;
        Flags |= ARGUMENT_UNICODE;
        break;

      case 'g':
        TmpGuid = VA_ARG (Marker, GUID *);
        if (TmpGuid == NULL) {
          ArgumentString = "<null guid>";
        } else {
          BasePrintLibSPrint (
            ValueBuffer,
            MAXIMUM_VALUE_CHARACTERS, 
            0,
            "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
            TmpGuid->Data1,
            TmpGuid->Data2,
            TmpGuid->Data3,
            TmpGuid->Data4[0],
            TmpGuid->Data4[1],
            TmpGuid->Data4[2],
            TmpGuid->Data4[3],
            TmpGuid->Data4[4],
            TmpGuid->Data4[5],
            TmpGuid->Data4[6],
            TmpGuid->Data4[7]
            );
          ArgumentString = ValueBuffer;
        }
        break;

      case 't':
        TmpTime = VA_ARG (Marker, TIME *); 
        if (TmpTime == NULL) {
          ArgumentString = "<null time>";
        } else {
          BasePrintLibSPrint (
            ValueBuffer,
            MAXIMUM_VALUE_CHARACTERS,
            0,
            "%02d/%02d/%04d  %02d:%02d",
            TmpTime->Month,
            TmpTime->Day,
            TmpTime->Year,
            TmpTime->Hour,
            TmpTime->Minute
            );
          ArgumentString = ValueBuffer;
        }
        break;

      case 'r':
        Status = VA_ARG (Marker, RETURN_STATUS);
        ArgumentString = ValueBuffer;
        if (RETURN_ERROR (Status)) {
          //
          // Clear error bit
          //
          Index = Status & ~MAX_BIT;
          if (Index > 0 && Index <= ERROR_STATUS_NUMBER) {
            ArgumentString = StatusString [Index + WARNING_STATUS_NUMBER];
          }
        } else {
          Index = Status;
          if (Index <= WARNING_STATUS_NUMBER) {
            ArgumentString = StatusString [Index];
          }
        }
        if (ArgumentString == ValueBuffer) {
          BasePrintLibSPrint ((CHAR8 *) ValueBuffer, MAXIMUM_VALUE_CHARACTERS, 0, "%08X", Status);
        }
        break;

      case '\n':
        ArgumentString = "\n\r";
        break;

      case '%':
      default:
        //
        // if the type is '%' or unknown, then print it to the screen
        //
        ArgumentString = (CHAR8 *)&FormatCharacter;
        Flags |= ARGUMENT_UNICODE;
        break;
      }
      break;
 
    case '\n':
      ArgumentString = "\n\r";
      break;

    default:
      ArgumentString = (CHAR8 *)&FormatCharacter;
      Flags |= ARGUMENT_UNICODE;
      break;
    }

    //
    // Retrieve the ArgumentString attriubutes
    //
    if ((Flags & ARGUMENT_UNICODE) != 0) {
      ArgumentMask = 0xffff;
      BytesPerArgumentCharacter = 2;
    } else {
      ArgumentMask = 0xff;
      BytesPerArgumentCharacter = 1;
    }
    if ((Flags & ARGUMENT_REVERSED) != 0) {
      BytesPerArgumentCharacter = -BytesPerArgumentCharacter;
    } else {
      //
      // Compute the number of characters in ArgumentString and store it in Count
      // ArgumentString is either null-terminated, or it contains Precision characters
      //
      for (Count = 0; Count < Precision || ((Flags & PRECISION) == 0); Count++) {
        ArgumentCharacter = ((ArgumentString[Count * BytesPerArgumentCharacter] & 0xff) | ((ArgumentString[Count * BytesPerArgumentCharacter + 1]) << 8)) & ArgumentMask;
        if (ArgumentCharacter == 0) {
          break;
        }
      }
    }

    //
    // Limit the length of the string to append to the remaining characters in the output buffer
    //
    if (Count > BufferSize) {
      Count = BufferSize;
    }
    if (Precision < Count) {
      Precision = Count;
    }

    //
    // Pad before the string
    //
    if ((Flags & (PAD_TO_WIDTH | LEFT_JUSTIFY)) == (PAD_TO_WIDTH)) {
      Buffer = BasePrintLibFillBuffer (Buffer, Width - Precision, ' ', BytesPerOutputCharacter);
    }

    if (ZeroPad) {
      if (Prefix != 0) {
        Buffer = BasePrintLibFillBuffer (Buffer, 1, Prefix, BytesPerOutputCharacter);
      }
      Buffer = BasePrintLibFillBuffer (Buffer, Precision - Count, '0', BytesPerOutputCharacter);
    } else {
      Buffer = BasePrintLibFillBuffer (Buffer, Precision - Count, ' ', BytesPerOutputCharacter);
      if (Prefix != 0) {
        Buffer = BasePrintLibFillBuffer (Buffer, 1, Prefix, BytesPerOutputCharacter);
      }
    }

    //
    // Output the Prefix character if it is present
    //
    Index = 0;
    if (Prefix) {
      Index++;
    }

    //
    // Copy the string into the output buffer performing the required type conversions
    //
    while (Index < Count) {
      ArgumentCharacter = ((*ArgumentString & 0xff) | (*(ArgumentString + 1) << 8)) & ArgumentMask;

      Buffer = BasePrintLibFillBuffer (Buffer, 1, ArgumentCharacter, BytesPerOutputCharacter);
      ArgumentString    += BytesPerArgumentCharacter;
      Index++;
      if (Comma) {
        Digits++;
        if (Digits == 3) {
          Digits = 0;
          Index++;
          if (Index < Count) {
            Buffer = BasePrintLibFillBuffer (Buffer, 1, ',', BytesPerOutputCharacter);
          }
        }
      }
    }

    //
    // Pad after the string
    //
    if ((Flags & (PAD_TO_WIDTH | LEFT_JUSTIFY)) == (PAD_TO_WIDTH | LEFT_JUSTIFY)) {
      Buffer = BasePrintLibFillBuffer (Buffer, Width - Precision, ' ', BytesPerOutputCharacter);
    }

    //
    // Reduce the number of characters
    //
    BufferSize -= Count;

    //
    // Get the next character from the format string
    //
    Format += BytesPerFormatCharacter;

    //
    // Get the next character from the format string
    //
    FormatCharacter = (*Format | (*(Format + 1) << 8)) & FormatMask;
  }

  //
  // Null terminate the Unicode or ASCII string
  //
  Buffer = BasePrintLibFillBuffer (Buffer, 1, 0, BytesPerOutputCharacter);
  //
  // Make sure output buffer cannot contain more than PcdMaximumUnicodeStringLength
  // Unicode characters if PcdMaximumUnicodeStringLength is not zero. 
  //
  ASSERT ((((Flags & OUTPUT_UNICODE) == 0)) || (StrSize ((CHAR16 *) OriginalBuffer) != 0));
  //
  // Make sure output buffer cannot contain more than PcdMaximumUnicodeStringLength
  // Ascii characters if PcdMaximumUnicodeStringLength is not zero. 
  //
  ASSERT ((((Flags & OUTPUT_UNICODE) != 0)) || (AsciiStrSize (OriginalBuffer) != 0));
   

  return ((Buffer - OriginalBuffer) / BytesPerOutputCharacter);
}

/**
  Worker function that produces a Null-terminated string in an output buffer 
  based on a Null-terminated format string and variable argument list.

  VSPrint function to process format and place the results in Buffer. Since a 
  VA_LIST is used this rountine allows the nesting of Vararg routines. Thus 
  this is the main print working routine

  @param  Buffer        Character buffer to print the results of the parsing
                        of Format into.
  @param  BufferSize    Maximum number of characters to put into buffer.
                        Zero means no limit.
  @param  Flags         Intial flags value.
                        Can only have FORMAT_UNICODE and OUTPUT_UNICODE set
  @param  FormatString  Null-terminated format string.

  @return Number of characters printed.

**/
UINTN
BasePrintLibSPrint (
  OUT CHAR8        *StartOfBuffer,
  IN  UINTN        BufferSize,
  IN  UINTN        Flags,
  IN  CONST CHAR8  *FormatString,
  ...
  )
{
  VA_LIST  Marker;

  VA_START (Marker, FormatString);
  return BasePrintLibVSPrint (StartOfBuffer, BufferSize, Flags, FormatString, Marker);
}

/**
  Produces a Null-terminated Unicode string in an output buffer based on 
  a Null-terminated Unicode format string and a VA_LIST argument list
  
  Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
  and BufferSize.  
  The Unicode string is produced by parsing the format string specified by FormatString.  
  Arguments are pulled from the variable argument list specified by Marker based on the 
  contents of the format string.  
  The length of the produced output buffer is returned.
  If BufferSize is 0, then no output buffer is produced and 0 is returned.

  If BufferSize is not 0 and StartOfBuffer is NULL, then ASSERT().
  If BufferSize is not 0 and FormatString is NULL, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than 
  PcdMaximumUnicodeStringLength Unicode characters, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
  contains more than PcdMaximumUnicodeStringLength Unicode characters, then ASSERT().

  @param  StartOfBuffer   APointer to the output buffer for the produced Null-terminated 
                          Unicode string.
  @param  BufferSize      The size, in bytes, of the output buffer specified by StartOfBuffer.
  @param  FormatString    Null-terminated Unicode format string.
  @param  Marker          VA_LIST marker for the variable argument list.
  
  @return return Length of the produced output buffer.

**/
UINTN
EFIAPI
UnicodeVSPrint (
  OUT CHAR16        *StartOfBuffer,
  IN  UINTN         BufferSize,
  IN  CONST CHAR16  *FormatString,
  IN  VA_LIST       Marker
  )
{
  return BasePrintLibVSPrint ((CHAR8 *)StartOfBuffer, BufferSize >> 1, FORMAT_UNICODE | OUTPUT_UNICODE, (CHAR8 *)FormatString, Marker);
}

/**
  Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated 
  Unicode format string and variable argument list.
  
  Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
  and BufferSize.
  The Unicode string is produced by parsing the format string specified by FormatString.
  Arguments are pulled from the variable argument list based on the contents of the format string.
  The length of the produced output buffer is returned.  
  If BufferSize is 0, then no output buffer is produced and 0 is returned.

  If BufferSize is not 0 and StartOfBuffer is NULL, then ASSERT().
  If BufferSize is not 0 and FormatString is NULL, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than 
  PcdMaximumUnicodeStringLength Unicode characters, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
  contains more than PcdMaximumUnicodeStringLength Unicode characters, then ASSERT().

  @param  StartOfBuffer   APointer to the output buffer for the produced Null-terminated 
                          Unicode string.
  @param  BufferSize      The size, in bytes, of the output buffer specified by StartOfBuffer.
  @param  FormatString    Null-terminated Unicode format string.
  
  @return Length of the produced output buffer.

**/
UINTN
EFIAPI
UnicodeSPrint (
  OUT CHAR16        *StartOfBuffer,
  IN  UINTN         BufferSize,
  IN  CONST CHAR16  *FormatString,
  ...
  )
{
  VA_LIST Marker;

  VA_START (Marker, FormatString);
  return UnicodeVSPrint (StartOfBuffer, BufferSize, FormatString, Marker);
}

/**
  Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
  ASCII format string and a VA_LIST argument list
  
  Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
  and BufferSize.
  The Unicode string is produced by parsing the format string specified by FormatString.
  Arguments are pulled from the variable argument list specified by Marker based on the 
  contents of the format string.
  The length of the produced output buffer is returned.
  If BufferSize is 0, then no output buffer is produced and 0 is returned.

  If BufferSize is not 0 and StartOfBuffer is NULL, then ASSERT().
  If BufferSize is not 0 and FormatString is NULL, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than 
  PcdMaximumUnicodeStringLength Unicode characters, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
  contains more than PcdMaximumUnicodeStringLength Unicode characters, then ASSERT().

  @param  StartOfBuffer   APointer to the output buffer for the produced Null-terminated 
                          Unicode string.
  @param  BufferSize      The size, in bytes, of the output buffer specified by StartOfBuffer.
  @param  FormatString    Null-terminated Unicode format string.
  @param  Marker          VA_LIST marker for the variable argument list.
  
  @return Length of the produced output buffer.

**/
UINTN
EFIAPI
UnicodeVSPrintAsciiFormat (
  OUT CHAR16       *StartOfBuffer,
  IN  UINTN        BufferSize,
  IN  CONST CHAR8  *FormatString,
  IN  VA_LIST      Marker
  )
{
  return BasePrintLibVSPrint ((CHAR8 *)StartOfBuffer, BufferSize >> 1, OUTPUT_UNICODE,FormatString, Marker);
}

/**
  Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated 
  ASCII format string and  variable argument list.
  
  Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
  and BufferSize.
  The Unicode string is produced by parsing the format string specified by FormatString.
  Arguments are pulled from the variable argument list based on the contents of the 
  format string.
  The length of the produced output buffer is returned.
  If BufferSize is 0, then no output buffer is produced and 0 is returned.

  If BufferSize is not 0 and StartOfBuffer is NULL, then ASSERT().
  If BufferSize is not 0 and FormatString is NULL, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than 
  PcdMaximumUnicodeStringLength Unicode characters, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
  contains more than PcdMaximumUnicodeStringLength Unicode characters, then ASSERT().

  @param  StartOfBuffer   APointer to the output buffer for the produced Null-terminated 
                          Unicode string.
  @param  BufferSize      The size, in bytes, of the output buffer specified by StartOfBuffer.
  @param  FormatString    Null-terminated Unicode format string.
  
  @return Length of the produced output buffer.

**/
UINTN
EFIAPI
UnicodeSPrintAsciiFormat (
  OUT CHAR16       *StartOfBuffer,
  IN  UINTN        BufferSize,
  IN  CONST CHAR8  *FormatString,
  ...
  )
{
  VA_LIST Marker;

  VA_START (Marker, FormatString);
  return UnicodeVSPrintAsciiFormat (StartOfBuffer, BufferSize, FormatString, Marker);
}

/**
  Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
  ASCII format string and a VA_LIST argument list.
  
  Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
  and BufferSize.
  The ASCII string is produced by parsing the format string specified by FormatString.
  Arguments are pulled from the variable argument list specified by Marker based on 
  the contents of the format string.
  The length of the produced output buffer is returned.
  If BufferSize is 0, then no output buffer is produced and 0 is returned.

  If BufferSize is not 0 and StartOfBuffer is NULL, then ASSERT().
  If BufferSize is not 0 and FormatString is NULL, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than 
  PcdMaximumUnicodeStringLength ASCII characters, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
  contains more than PcdMaximumUnicodeStringLength ASCII characters, then ASSERT().

  @param  StartOfBuffer   APointer to the output buffer for the produced Null-terminated 
                          ASCII string.
  @param  BufferSize      The size, in bytes, of the output buffer specified by StartOfBuffer.
  @param  FormatString    Null-terminated Unicode format string.
  @param  Marker          VA_LIST marker for the variable argument list.
  
  @return Length of the produced output buffer.

**/
UINTN
EFIAPI
AsciiVSPrint (
  OUT CHAR8         *StartOfBuffer,
  IN  UINTN         BufferSize,
  IN  CONST CHAR8   *FormatString,
  IN  VA_LIST       Marker
  )
{
  return BasePrintLibVSPrint (StartOfBuffer, BufferSize, 0, FormatString, Marker);
}

/**
  Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
  ASCII format string and  variable argument list.
  
  Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
  and BufferSize.
  The ASCII string is produced by parsing the format string specified by FormatString.
  Arguments are pulled from the variable argument list based on the contents of the 
  format string.
  The length of the produced output buffer is returned.
  If BufferSize is 0, then no output buffer is produced and 0 is returned.

  If BufferSize is not 0 and StartOfBuffer is NULL, then ASSERT().
  If BufferSize is not 0 and FormatString is NULL, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than 
  PcdMaximumUnicodeStringLength ASCII characters, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
  contains more than PcdMaximumUnicodeStringLength ASCII characters, then ASSERT().

  @param  StartOfBuffer   APointer to the output buffer for the produced Null-terminated 
                          ASCII string.
  @param  BufferSize      The size, in bytes, of the output buffer specified by StartOfBuffer.
  @param  FormatString    Null-terminated Unicode format string.
  
  @return Length of the produced output buffer.

**/
UINTN
EFIAPI
AsciiSPrint (
  OUT CHAR8        *StartOfBuffer,
  IN  UINTN        BufferSize,
  IN  CONST CHAR8  *FormatString,
  ...
  )
{
  VA_LIST Marker;

  VA_START (Marker, FormatString);
  return AsciiVSPrint (StartOfBuffer, BufferSize, FormatString, Marker);
}

/**
  Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
  ASCII format string and a VA_LIST argument list.
  
  Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
  and BufferSize.
  The ASCII string is produced by parsing the format string specified by FormatString.
  Arguments are pulled from the variable argument list specified by Marker based on 
  the contents of the format string.
  The length of the produced output buffer is returned.
  If BufferSize is 0, then no output buffer is produced and 0 is returned.

  If BufferSize is not 0 and StartOfBuffer is NULL, then ASSERT().
  If BufferSize is not 0 and FormatString is NULL, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than 
  PcdMaximumUnicodeStringLength ASCII characters, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
  contains more than PcdMaximumUnicodeStringLength ASCII characters, then ASSERT().

  @param  StartOfBuffer   APointer to the output buffer for the produced Null-terminated 
                          ASCII string.
  @param  BufferSize      The size, in bytes, of the output buffer specified by StartOfBuffer.
  @param  FormatString    Null-terminated Unicode format string.
  @param  Marker          VA_LIST marker for the variable argument list.
  
  @return Length of the produced output buffer.

**/
UINTN
EFIAPI
AsciiVSPrintUnicodeFormat (
  OUT CHAR8         *StartOfBuffer,
  IN  UINTN         BufferSize,
  IN  CONST CHAR16  *FormatString,
  IN  VA_LIST       Marker
  )
{
  return BasePrintLibVSPrint (StartOfBuffer, BufferSize, FORMAT_UNICODE, (CHAR8 *)FormatString, Marker);
}

/**
  Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
  ASCII format string and  variable argument list.
  
  Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
  and BufferSize.
  The ASCII string is produced by parsing the format string specified by FormatString.
  Arguments are pulled from the variable argument list based on the contents of the 
  format string.
  The length of the produced output buffer is returned.
  If BufferSize is 0, then no output buffer is produced and 0 is returned.

  If BufferSize is not 0 and StartOfBuffer is NULL, then ASSERT().
  If BufferSize is not 0 and FormatString is NULL, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than 
  PcdMaximumUnicodeStringLength ASCII characters, then ASSERT().
  If PcdMaximumUnicodeStringLength is not zero, and produced Null-terminated Unicode string
  contains more than PcdMaximumUnicodeStringLength ASCII characters, then ASSERT().

  @param  StartOfBuffer   APointer to the output buffer for the produced Null-terminated 
                          ASCII string.
  @param  BufferSize      The size, in bytes, of the output buffer specified by StartOfBuffer.
  @param  FormatString    Null-terminated Unicode format string.
  
  @return Length of the produced output buffer.

**/
UINTN
EFIAPI
AsciiSPrintUnicodeFormat (
  OUT CHAR8         *StartOfBuffer,
  IN  UINTN         BufferSize,
  IN  CONST CHAR16  *FormatString,
  ...
  )
{
  VA_LIST Marker;

  VA_START (Marker, FormatString);
  return AsciiVSPrintUnicodeFormat (StartOfBuffer, BufferSize, FormatString, Marker);
}

/**
  Converts a decimal value to a Null-terminated Unicode string.
  
  Converts the decimal number specified by Value to a Null-terminated Unicode 
  string specified by Buffer containing at most Width characters.
  If Width is 0 then a width of  MAXIMUM_VALUE_CHARACTERS is assumed.
  The total number of characters placed in Buffer is returned.
  If the conversion contains more than Width characters, then only the first
  Width characters are returned, and the total number of characters 
  required to perform the conversion is returned.
  Additional conversion parameters are specified in Flags.  
  The Flags bit LEFT_JUSTIFY is always ignored.
  All conversions are left justified in Buffer.
  If Width is 0, PREFIX_ZERO is ignored in Flags.
  If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and commas
  are inserted every 3rd digit starting from the right.
  If Value is < 0, then the fist character in Buffer is a '-'.
  If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored, 
  then Buffer is padded with '0' characters so the combination of the optional '-' 
  sign character, '0' characters, digit characters for Value, and the Null-terminator
  add up to Width characters.

  If Buffer is NULL, then ASSERT().
  If unsupported bits are set in Flags, then ASSERT().
  If Width >= MAXIMUM_VALUE_CHARACTERS, then ASSERT()

  @param  Buffer  Pointer to the output buffer for the produced Null-terminated
                  Unicode string.
  @param  Flags   The bitmask of flags that specify left justification, zero pad, and commas.
  @param  Value   The 64-bit signed value to convert to a string.
  @param  Width    The maximum number of Unicode characters to place in Buffer.
  
  @return Total number of characters required to perform the conversion.

**/
UINTN
EFIAPI
UnicodeValueToString (
  IN OUT CHAR16  *Buffer,
  IN UINTN       Flags,
  IN INT64       Value,
  IN UINTN       Width
  )
{
  return BasePrintLibConvertValueToString ((CHAR8 *)Buffer, Flags, Value, Width, 2);
}

/**
  Converts a decimal value to a Null-terminated ASCII string.
  
  Converts the decimal number specified by Value to a Null-terminated ASCII string 
  specified by Buffer containing at most Width characters.
  If Width is 0 then a width of  MAXIMUM_VALUE_CHARACTERS is assumed.
  The total number of characters placed in Buffer is returned.
  If the conversion contains more than Width characters, then only the first Width
  characters are returned, and the total number of characters required to perform
  the conversion is returned.
  Additional conversion parameters are specified in Flags.  
  The Flags bit LEFT_JUSTIFY is always ignored.
  All conversions are left justified in Buffer.
  If Width is 0, PREFIX_ZERO is ignored in Flags.
  If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and commas 
  are inserted every 3rd digit starting from the right.
  If Value is < 0, then the fist character in Buffer is a '-'.
  If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored, then Buffer
  is padded with '0' characters so the combination of the optional '-'
  sign character, '0' characters, digit characters for Value, and the 
  Null-terminator add up to Width characters.

  If Buffer is NULL, then ASSERT().
  If unsupported bits are set in Flags, then ASSERT().
  If Width >= MAXIMUM_VALUE_CHARACTERS, then ASSERT()

  @param  Buffer  Pointer to the output buffer for the produced Null-terminated
                  ASCII string.
  @param  Flags   The bitmask of flags that specify left justification, zero pad, and commas.
  @param  Value   The 64-bit signed value to convert to a string.
  @param  Width    The maximum number of ASCII characters to place in Buffer.
  
  @return Total number of characters required to perform the conversion.

**/
UINTN
EFIAPI
AsciiValueToString (
  IN OUT CHAR8  *Buffer,
  IN UINTN      Flags,
  IN INT64      Value,
  IN UINTN      Width
  )
{
  return BasePrintLibConvertValueToString ((CHAR8 *)Buffer, Flags, Value, Width, 1);
}