summaryrefslogtreecommitdiff
path: root/sql/sql_string.h
blob: 6fd3d7a10db52bec09a33cee78a4783db4ddbe35 (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
#ifndef SQL_STRING_INCLUDED
#define SQL_STRING_INCLUDED

/*
   Copyright (c) 2000, 2013, Oracle and/or its affiliates.
   Copyright (c) 2008, 2013, Monty Program Ab.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */

/* This file is originally from the mysql distribution. Coded by monty */

#ifdef USE_PRAGMA_INTERFACE
#pragma interface			/* gcc class implementation */
#endif

#include "m_ctype.h"                            /* my_charset_bin */
#include "my_sys.h"              /* alloc_root, my_free, my_realloc */
#include "m_string.h"                           /* TRASH */

class String;
typedef struct st_io_cache IO_CACHE;
typedef struct st_mem_root MEM_ROOT;

int sortcmp(const String *a,const String *b, CHARSET_INFO *cs);
String *copy_if_not_alloced(String *a,String *b,uint32 arg_length);
inline uint32 copy_and_convert(char *to, uint32 to_length,
                               CHARSET_INFO *to_cs,
                               const char *from, uint32 from_length,
                               CHARSET_INFO *from_cs, uint *errors)
{
  return my_convert(to, to_length, to_cs, from, from_length, from_cs, errors);
}


class String_copier: private MY_STRCONV_STATUS
{
public:
  const char *source_end_pos() const
  { return m_native_copy_status.m_source_end_pos; }
  const char *well_formed_error_pos() const
  { return m_native_copy_status.m_well_formed_error_pos; }
  const char *cannot_convert_error_pos() const
  { return m_cannot_convert_error_pos; }
  const char *most_important_error_pos() const
  {
    return well_formed_error_pos() ? well_formed_error_pos() :
                                     cannot_convert_error_pos();
  }
  /*
    Convert a string between character sets.
    "dstcs" and "srccs" cannot be &my_charset_bin.
  */
  uint convert_fix(CHARSET_INFO *dstcs, char *dst, uint dst_length,
                   CHARSET_INFO *srccs, const char *src, uint src_length,
                   uint nchars)
  {
    return my_convert_fix(dstcs, dst, dst_length,
                          srccs, src, src_length, nchars, this);
  }
  /*
     Copy a string. Fix bad bytes/characters to '?'.
  */
  uint well_formed_copy(CHARSET_INFO *to_cs, char *to, uint to_length,
                        CHARSET_INFO *from_cs, const char *from,
                        uint from_length, uint nchars);
  // Same as above, but without the "nchars" limit.
  uint well_formed_copy(CHARSET_INFO *to_cs, char *to, uint to_length,
                        CHARSET_INFO *from_cs, const char *from,
                        uint from_length)
  {
    return well_formed_copy(to_cs, to, to_length,
                            from_cs, from, from_length,
                            from_length /* No limit on "nchars"*/);
  }
};


size_t my_copy_with_hex_escaping(CHARSET_INFO *cs,
                                 char *dst, size_t dstlen,
                                 const char *src, size_t srclen);
uint convert_to_printable(char *to, size_t to_len,
                          const char *from, size_t from_len,
                          CHARSET_INFO *from_cs, size_t nbytes= 0);

class String
{
  char *Ptr;
  uint32 str_length,Alloced_length, extra_alloc;
  bool alloced,thread_specific;
  CHARSET_INFO *str_charset;
public:
  String()
  { 
    Ptr=0; str_length=Alloced_length=extra_alloc=0;
    alloced= thread_specific= 0; 
    str_charset= &my_charset_bin; 
  }
  String(uint32 length_arg)
  { 
    alloced= thread_specific= 0;
    Alloced_length= extra_alloc= 0; (void) real_alloc(length_arg); 
    str_charset= &my_charset_bin;
  }
  String(const char *str, CHARSET_INFO *cs)
  { 
    Ptr=(char*) str; str_length= (uint32) strlen(str);
    Alloced_length= extra_alloc= 0;
    alloced= thread_specific= 0;
    str_charset=cs;
  }
  /*
    NOTE: If one intend to use the c_ptr() method, the following two
    contructors need the size of memory for STR to be at least LEN+1 (to make
    room for zero termination).
  */
  String(const char *str,uint32 len, CHARSET_INFO *cs)
  { 
    Ptr=(char*) str; str_length=len; Alloced_length= extra_alloc=0;
    alloced= thread_specific= 0;
    str_charset=cs;
  }
  String(char *str,uint32 len, CHARSET_INFO *cs)
  { 
    Ptr=(char*) str; Alloced_length=str_length=len; extra_alloc= 0;
    alloced= thread_specific= 0;
    str_charset=cs;
  }
  String(const String &str)
  { 
    Ptr=str.Ptr ; str_length=str.str_length ;
    Alloced_length=str.Alloced_length; extra_alloc= 0;
    alloced= thread_specific= 0;
    str_charset=str.str_charset;
  }
  static void *operator new(size_t size, MEM_ROOT *mem_root) throw ()
  { return (void*) alloc_root(mem_root, (uint) size); }
  static void operator delete(void *ptr_arg, size_t size)
  {
    (void) ptr_arg;
    (void) size;
    TRASH_FREE(ptr_arg, size);
  }
  static void operator delete(void *, MEM_ROOT *)
  { /* never called */ }
  ~String() { free(); }

  /* Mark variable thread specific it it's not allocated already */
  inline void set_thread_specific()
  {
    if (!alloced)
      thread_specific= 1;
  }
  inline void set_charset(CHARSET_INFO *charset_arg)
  { str_charset= charset_arg; }
  inline CHARSET_INFO *charset() const { return str_charset; }
  inline uint32 length() const { return str_length;}
  inline uint32 alloced_length() const { return Alloced_length;}
  inline uint32 extra_allocation() const { return extra_alloc;}
  inline char& operator [] (uint32 i) const { return Ptr[i]; }
  inline void length(uint32 len) { str_length=len ; }
  inline void extra_allocation(uint32 len) { extra_alloc= len; }
  inline bool is_empty() const { return (str_length == 0); }
  inline void mark_as_const() { Alloced_length= 0;}
  inline const char *ptr() const { return Ptr; }
  inline const char *end() const { return Ptr + str_length; }
  inline char *c_ptr()
  {
    DBUG_ASSERT(!alloced || !Ptr || !Alloced_length || 
                (Alloced_length >= (str_length + 1)));

    if (!Ptr || Ptr[str_length])		/* Should be safe */
      (void) realloc(str_length);
    return Ptr;
  }
  inline char *c_ptr_quick()
  {
    if (Ptr && str_length < Alloced_length)
      Ptr[str_length]=0;
    return Ptr;
  }
  inline char *c_ptr_safe()
  {
    if (Ptr && str_length < Alloced_length)
      Ptr[str_length]=0;
    else
      (void) realloc(str_length);
    return Ptr;
  }
  LEX_STRING lex_string() const
  {
    LEX_STRING str = { (char*) ptr(), length() };
    return str;
  }
  LEX_CSTRING lex_cstring() const
  {
    LEX_CSTRING skr = { ptr(), length() };
    return skr;
  }

  void set(String &str,uint32 offset,uint32 arg_length)
  {
    DBUG_ASSERT(&str != this);
    free();
    Ptr=(char*) str.ptr()+offset; str_length=arg_length;
    if (str.Alloced_length)
      Alloced_length=str.Alloced_length-offset;
    str_charset=str.str_charset;
  }


  /**
     Points the internal buffer to the supplied one. The old buffer is freed.
     @param str Pointer to the new buffer.
     @param arg_length Length of the new buffer in characters, excluding any 
            null character.
     @param cs Character set to use for interpreting string data.
     @note The new buffer will not be null terminated.
  */
  inline void set(char *str,uint32 arg_length, CHARSET_INFO *cs)
  {
    free();
    Ptr=(char*) str; str_length=Alloced_length=arg_length;
    str_charset=cs;
  }
  inline void set(const char *str,uint32 arg_length, CHARSET_INFO *cs)
  {
    free();
    Ptr=(char*) str; str_length=arg_length;
    str_charset=cs;
  }
  bool set_ascii(const char *str, uint32 arg_length);
  inline void set_quick(char *str,uint32 arg_length, CHARSET_INFO *cs)
  {
    if (!alloced)
    {
      Ptr=(char*) str; str_length=Alloced_length=arg_length;
    }
    str_charset=cs;
  }
  bool set_int(longlong num, bool unsigned_flag, CHARSET_INFO *cs);
  bool set(int num, CHARSET_INFO *cs) { return set_int(num, false, cs); }
  bool set(uint num, CHARSET_INFO *cs) { return set_int(num, true, cs); }
  bool set(long num, CHARSET_INFO *cs) { return set_int(num, false, cs); }
  bool set(ulong num, CHARSET_INFO *cs) { return set_int(num, true, cs); }
  bool set(longlong num, CHARSET_INFO *cs) { return set_int(num, false, cs); }
  bool set(ulonglong num, CHARSET_INFO *cs) { return set_int((longlong)num, true, cs); }
  bool set_real(double num,uint decimals, CHARSET_INFO *cs);

  /* Take over handling of buffer from some other object */
  void reset(char *ptr_arg, uint32 length_arg, uint32 alloced_length_arg,
             CHARSET_INFO *cs)
  { 
    free();
    Ptr= ptr_arg;
    str_length= length_arg;
    Alloced_length= alloced_length_arg;
    str_charset= cs;
    alloced= ptr_arg != 0;
  }

  /* Forget about the buffer, let some other object handle it */
  char *release()
  {
    char *old= Ptr;
    Ptr=0; str_length= Alloced_length= extra_alloc= 0;
    alloced= thread_specific= 0;
    return old;
  }

  /*
    PMG 2004.11.12
    This is a method that works the same as perl's "chop". It simply
    drops the last character of a string. This is useful in the case
    of the federated storage handler where I'm building a unknown
    number, list of values and fields to be used in a sql insert
    statement to be run on the remote server, and have a comma after each.
    When the list is complete, I "chop" off the trailing comma

    ex. 
      String stringobj; 
      stringobj.append("VALUES ('foo', 'fi', 'fo',");
      stringobj.chop();
      stringobj.append(")");

    In this case, the value of string was:

    VALUES ('foo', 'fi', 'fo',
    VALUES ('foo', 'fi', 'fo'
    VALUES ('foo', 'fi', 'fo')
      
  */
  inline void chop()
  {
    str_length--;
    Ptr[str_length]= '\0';
    DBUG_ASSERT(strlen(Ptr) == str_length);
  }

  inline void free()
  {
    if (alloced)
    {
      alloced=0;
      my_free(Ptr);
    }
    Alloced_length= extra_alloc= 0;
    Ptr=0;
    str_length=0;				/* Safety */
  }
  inline bool alloc(uint32 arg_length)
  {
    if (arg_length < Alloced_length)
      return 0;
    return real_alloc(arg_length);
  }
  bool real_alloc(uint32 arg_length);			// Empties old string
  bool realloc_raw(uint32 arg_length);
  bool realloc(uint32 arg_length)
  {
    if (realloc_raw(arg_length))
      return TRUE;
    Ptr[arg_length]=0;        // This make other funcs shorter
    return FALSE;
  }
  bool realloc_with_extra(uint32 arg_length)
  {
    if (extra_alloc < 4096)
      extra_alloc= extra_alloc*2+128;
    if (realloc_raw(arg_length + extra_alloc))
      return TRUE;
    Ptr[arg_length]=0;        // This make other funcs shorter
    return FALSE;
  }
  bool realloc_with_extra_if_needed(uint32 arg_length)
  {
    if (arg_length < Alloced_length)
    {
      Ptr[arg_length]=0; // behave as if realloc was called.
      return 0;
    }
    return realloc_with_extra(arg_length);
  }
  // Shrink the buffer, but only if it is allocated on the heap.
  inline void shrink(uint32 arg_length)
  {
    if (!is_alloced())
      return;
    if (ALIGN_SIZE(arg_length+1) < Alloced_length)
    {
      char *new_ptr;
      if (!(new_ptr=(char*) my_realloc(Ptr,arg_length,MYF(0))))
      {
	Alloced_length = 0;
	real_alloc(arg_length);
      }
      else
      {
	Ptr=new_ptr;
	Alloced_length=arg_length;
      }
    }
  }
  bool is_alloced() const { return alloced; }
  inline String& operator = (const String &s)
  {
    if (&s != this)
    {
      /*
        It is forbidden to do assignments like 
        some_string = substring_of_that_string
       */
      DBUG_ASSERT(!s.uses_buffer_owned_by(this));
      free();
      Ptr=s.Ptr ; str_length=s.str_length ; Alloced_length=s.Alloced_length;
      str_charset=s.str_charset;
    }
    return *this;
  }

  bool copy();					// Alloc string if not alloced
  bool copy(const String &s);			// Allocate new string
  bool copy(const char *s,uint32 arg_length, CHARSET_INFO *cs);	// Allocate new string
  static bool needs_conversion(uint32 arg_length,
  			       CHARSET_INFO *cs_from, CHARSET_INFO *cs_to,
			       uint32 *offset);
  static bool needs_conversion_on_storage(uint32 arg_length,
                                          CHARSET_INFO *cs_from,
                                          CHARSET_INFO *cs_to);
  bool copy_aligned(const char *s, uint32 arg_length, uint32 offset,
		    CHARSET_INFO *cs);
  bool set_or_copy_aligned(const char *s, uint32 arg_length, CHARSET_INFO *cs);
  bool copy(const char*s,uint32 arg_length, CHARSET_INFO *csfrom,
	    CHARSET_INFO *csto, uint *errors);
  bool copy(const String *str, CHARSET_INFO *tocs, uint *errors)
  {
    return copy(str->ptr(), str->length(), str->charset(), tocs, errors);
  }
  bool copy(CHARSET_INFO *tocs,
            CHARSET_INFO *fromcs, const char *src, uint32 src_length,
            uint32 nchars, String_copier *copier)
  {
    if (alloc(tocs->mbmaxlen * src_length))
      return true;
    str_length= copier->well_formed_copy(tocs, Ptr, Alloced_length,
                                         fromcs, src, src_length, nchars);
    str_charset= tocs;
    return false;
  }
  void move(String &s)
  {
    free();
    Ptr=s.Ptr ; str_length=s.str_length ; Alloced_length=s.Alloced_length;
    extra_alloc= s.extra_alloc;
    alloced= s.alloced;
    thread_specific= s.thread_specific;
    s.alloced= 0;
  }
  bool append(const String &s);
  bool append(const char *s);
  bool append(const LEX_STRING *ls)
  {
    return append(ls->str, ls->length);
  }
  bool append(const char *s, uint32 arg_length);
  bool append(const char *s, uint32 arg_length, CHARSET_INFO *cs);
  bool append_ulonglong(ulonglong val);
  bool append(IO_CACHE* file, uint32 arg_length);
  bool append_with_prefill(const char *s, uint32 arg_length, 
			   uint32 full_length, char fill_char);
  bool append_parenthesized(long nr, int radix= 10);
  int strstr(const String &search,uint32 offset=0); // Returns offset to substring or -1
  int strrstr(const String &search,uint32 offset=0); // Returns offset to substring or -1
  bool replace(uint32 offset,uint32 arg_length,const char *to,uint32 length);
  bool replace(uint32 offset,uint32 arg_length,const String &to);
  inline bool append(char chr)
  {
    if (str_length < Alloced_length)
    {
      Ptr[str_length++]=chr;
    }
    else
    {
      if (realloc_with_extra(str_length + 1))
	return 1;
      Ptr[str_length++]=chr;
    }
    return 0;
  }
  bool append_hex(const char *src, uint32 srclen)
  {
    for (const char *src_end= src + srclen ; src != src_end ; src++)
    {
      if (append(_dig_vec_lower[((uchar) *src) >> 4]) ||
          append(_dig_vec_lower[((uchar) *src) & 0x0F]))
        return true;
    }
    return false;
  }
  bool append_hex(const uchar *src, uint32 srclen)
  {
    return append_hex((const char*)src, srclen);
  }
  bool fill(uint32 max_length,char fill);
  void strip_sp();
  friend int sortcmp(const String *a,const String *b, CHARSET_INFO *cs);
  friend int stringcmp(const String *a,const String *b);
  friend String *copy_if_not_alloced(String *a,String *b,uint32 arg_length);
  friend class Field;
  uint32 numchars() const;
  int charpos(longlong i,uint32 offset=0);

  int reserve(uint32 space_needed)
  {
    return realloc(str_length + space_needed);
  }
  int reserve(uint32 space_needed, uint32 grow_by);

  /*
    The following append operations do NOT check alloced memory
    q_*** methods writes values of parameters itself
    qs_*** methods writes string representation of value
  */
  void q_append(const char c)
  {
    Ptr[str_length++] = c;
  }
  void q_append(const uint32 n)
  {
    int4store(Ptr + str_length, n);
    str_length += 4;
  }
  void q_append(double d)
  {
    float8store(Ptr + str_length, d);
    str_length += 8;
  }
  void q_append(double *d)
  {
    float8store(Ptr + str_length, *d);
    str_length += 8;
  }
  void q_append(const char *data, uint32 data_len)
  {
    memcpy(Ptr + str_length, data, data_len);
    str_length += data_len;
  }

  void write_at_position(int position, uint32 value)
  {
    int4store(Ptr + position,value);
  }

  void qs_append(const char *str)
  {
    qs_append(str, (uint32)strlen(str));
  }
  void qs_append(const char *str, uint32 len);
  void qs_append(double d);
  void qs_append(double *d);
  inline void qs_append(const char c)
  {
     Ptr[str_length]= c;
     str_length++;
  }
  void qs_append(int i);
  void qs_append(uint i)
  {
    qs_append((ulonglong)i);
  }
  void qs_append(ulong i)
  {
    qs_append((ulonglong)i);
  }
  void qs_append(ulonglong i);

  /* Inline (general) functions used by the protocol functions */

  inline char *prep_append(uint32 arg_length, uint32 step_alloc)
  {
    uint32 new_length= arg_length + str_length;
    if (new_length > Alloced_length)
    {
      if (realloc(new_length + step_alloc))
        return 0;
    }
    uint32 old_length= str_length;
    str_length+= arg_length;
    return Ptr+ old_length;			/* Area to use */
  }

  inline bool append(const char *s, uint32 arg_length, uint32 step_alloc)
  {
    uint32 new_length= arg_length + str_length;
    if (new_length > Alloced_length && realloc(new_length + step_alloc))
      return TRUE;
    memcpy(Ptr+str_length, s, arg_length);
    str_length+= arg_length;
    return FALSE;
  }
  void print(String *to) const;
  void print_with_conversion(String *to, CHARSET_INFO *cs) const;
  void print(String *to, CHARSET_INFO *cs) const
  {
    if (my_charset_same(charset(), cs))
      print(to);
    else
      print_with_conversion(to, cs);
  }

  bool append_for_single_quote(const char *st, uint len);
  bool append_for_single_quote(const String *s)
  {
    return append_for_single_quote(s->ptr(), s->length());
  }
  bool append_for_single_quote(const char *st)
  {
    return append_for_single_quote(st, strlen(st));
  }

  /* Swap two string objects. Efficient way to exchange data without memcpy. */
  void swap(String &s);

  inline bool uses_buffer_owned_by(const String *s) const
  {
    return (s->alloced && Ptr >= s->Ptr && Ptr < s->Ptr + s->str_length);
  }
  uint well_formed_length() const
  {
    int dummy_error;
    return charset()->cset->well_formed_len(charset(), ptr(), ptr() + length(),
                                            length(), &dummy_error);
  }
  bool is_ascii() const
  {
    if (length() == 0)
      return TRUE;
    if (charset()->mbminlen > 1)
      return FALSE;
    for (const char *c= ptr(), *c_end= c + length(); c < c_end; c++)
    {
      if (!my_isascii(*c))
        return FALSE;
    }
    return TRUE;
  }
  bool bin_eq(const String *other) const
  {
    return length() == other->length() &&
           !memcmp(ptr(), other->ptr(), length());
  }
  bool eq(const String *other, CHARSET_INFO *cs) const
  {
    return !sortcmp(this, other, cs);
  }
};


// The following class is a backport from MySQL 5.6:
/**
  String class wrapper with a preallocated buffer of size buff_sz

  This class allows to replace sequences of:
     char buff[12345];
     String str(buff, sizeof(buff));
     str.length(0);
  with a simple equivalent declaration:
     StringBuffer<12345> str;
*/

template<size_t buff_sz>
class StringBuffer : public String
{
  char buff[buff_sz];

public:
  StringBuffer() : String(buff, buff_sz, &my_charset_bin) { length(0); }
  explicit StringBuffer(CHARSET_INFO *cs) : String(buff, buff_sz, cs)
  {
    length(0);
  }
};


static inline bool check_if_only_end_space(CHARSET_INFO *cs,
                                           const char *str, 
                                           const char *end)
{
  return str+ cs->cset->scan(cs, str, end, MY_SEQ_SPACES) == end;
}

int append_query_string(CHARSET_INFO *csinfo, String *to,
                        const char *str, size_t len, bool no_backslash);

#endif /* SQL_STRING_INCLUDED */