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Merge recent changes from trunk.

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FossilOrigin-Name: 5962921fceaf2ec645379a5f1d18e2c2c13abbf92cf64606caee69f45a21c500
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drh
2020-01-08 13:08:52 +00:00
parent 2b1c2aad9f 87969b2a11
commit 19ca76af38
9 changed files with 98 additions and 43 deletions
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src/sqlite.h.in
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@@ -5587,7 +5587,7 @@ void sqlite3_result_subtype(sqlite3_context*,unsigned int);
** <li> [SQLITE_UTF16_ALIGNED].
** </ul>)^
** ^The eTextRep argument determines the encoding of strings passed
** to the collating function callback, xCallback.
** to the collating function callback, xCompare.
** ^The [SQLITE_UTF16] and [SQLITE_UTF16_ALIGNED] values for eTextRep
** force strings to be UTF16 with native byte order.
** ^The [SQLITE_UTF16_ALIGNED] value for eTextRep forces strings to begin
@@ -5596,18 +5596,19 @@ void sqlite3_result_subtype(sqlite3_context*,unsigned int);
** ^The fourth argument, pArg, is an application data pointer that is passed
** through as the first argument to the collating function callback.
**
** ^The fifth argument, xCallback, is a pointer to the collating function.
** ^The fifth argument, xCompare, is a pointer to the collating function.
** ^Multiple collating functions can be registered using the same name but
** with different eTextRep parameters and SQLite will use whichever
** function requires the least amount of data transformation.
** ^If the xCallback argument is NULL then the collating function is
** ^If the xCompare argument is NULL then the collating function is
** deleted. ^When all collating functions having the same name are deleted,
** that collation is no longer usable.
**
** ^The collating function callback is invoked with a copy of the pArg
** application data pointer and with two strings in the encoding specified
** by the eTextRep argument. The collating function must return an
** integer that is negative, zero, or positive
** by the eTextRep argument. The two integer parameters to the collating
** function callback are the length of the two strings, in bytes. The collating
** function must return an integer that is negative, zero, or positive
** if the first string is less than, equal to, or greater than the second,
** respectively. A collating function must always return the same answer
** given the same inputs. If two or more collating functions are registered