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=pod
=head1 NAME
B<LuaSQLite 3> - a Lua 5.1 wrapper for the SQLite3 library
=head1 OVERVIEW
B<LuaSQLite 3> is a thin wrapper around the public domain SQLite3
database engine.
The C<lsqlite3> module supports the creation and manipulation of
SQLite3 databases. After a C<require('lsqlite3')> the exported
functions are called with prefix C<sqlite3>. However, most sqlite3
functions are called via an object-oriented interface to either
database or SQL statement objects; see below for details.
This documentation does not attempt to describe how SQLite3 itself
works, it just describes the Lua binding and the available functions.
For more information about the SQL features supported by SQLite3 and
details about the syntax of SQL statements and queries, please see the
B<SQLite3 documentation> L<http://www.sqlite.org/>. Using some of the
advanced features (how to use callbacks, for instance) will require
some familiarity with the SQLite3 API.
=head1 DOWNLOAD
B<LuaSQLite 3> source code can be downloaded from its
LuaForge (L<http://luaforge.net/projects/luasqlite/>) page.
You will also need to build or obtain an SQLite3 loadable library
(DLL or .so). See L<http://www.sqlite.org/> for obtaining SQLite3
source code or downloading a binary SQLite3 library.
=head1 INSTALLATION
A I<Makefile> is provided; it assumes an SQLite3 library is already
installed.
=head1 EXAMPLES
The distribution contains an I<examples> directory. The unit tests
also show some example use.
=head1 VERIFICATION TESTS
The distribution contains some units tests using Michael Roth's
C<lunit> (which is also included). Some of the tests were also derived
from Michael's B<lua-sqlite3> module, and more unit tests added by
Doug Currie.
The distribution also contains some functional tests by Tiago.
This version of C<lsqlite3> was tested with SQLite 3.4.2.
=head1 REFERENCE
=head1 SQLite3 functions
=head2 sqlite3.complete
sqlite3.complete(sql)
Returns true if the string C<sql> comprises one or more complete SQL
statements and false otherwise.
=head2 sqlite3.open
sqlite3.open(filename)
Opens (or creates if it does not exist) an SQLite database with name
C<filename> and returns its handle as userdata (the returned object
should be used for all further method calls in connection with this
specific database, see L</Database methods>). Example:
myDB=sqlite3.open('MyDatabase.sqlite3') -- open
-- do some database calls...
myDB:close() -- close
In case of an error, the function returns nil, an error code and an
error message.
=head2 sqlite3.open_memory
sqlite3.open_memory()
Opens an SQLite database B<in memory> and returns its handle as
userdata. In case of an error, the function returns nil, an error code
and an error message. (In-memory databases are volatile as they are
never stored on disk.)
=head2 sqlite3.temp_directory
sqlite3.temp_directory([temp])
Sets or queries the directory used by SQLite for temporary files. If
string C<temp> is a directory name or nil, the temporary directory is
set accordingly and the old value is returned. If C<temp> is missing,
the function simply returns the current temporary directory.
=head2 sqlite3.version
sqlite3.version()
Returns a string with SQLite version information, in the form 'x.y[.z]'.
=head1 Database methods
After opening a database with L<C<sqlite3.open()>|/sqlite3.open> or
L<C<sqlite3.open_memory()>|/sqlite3.open_memory>
the returned database object should be used for all further method calls
in connection with that database. An open database object supports the
following methods.
=head2 db:busy_handler
db:busy_handler([func[,udata]])
Sets or removes a busy handler for a database. C<func> is either a Lua
function that implements the busy handler or nil to remove a previously
set handler. This function returns nothing.
The handler function is called with two parameters: C<udata> and the
number of (re-)tries for a pending transaction. It should return nil,
false or 0 if the transaction is to be aborted. All other values will
result in another attempt to perform the transaction. (See the SQLite
documentation for important hints about writing busy handlers.)
=head2 db:busy_timeout
db:busy_timeout(t)
Sets a busy handler that waits for C<t> milliseconds if a transaction
cannot proceed. Calling this function will remove any busy handler set
by L<C<db:busy_handler()>|/db:busy_handler>; calling it with an argument
less than or equal to 0 will turn off all busy handlers.
=head2 db:changes
db:changes()
This function returns the number of database rows that were changed (or
inserted or deleted) by the most recent SQL statement. Only changes that
are directly specified by INSERT, UPDATE, or DELETE statements are
counted. Auxiliary changes caused by triggers are not counted. Use
L<C<db:total_changes()>|/db:total_changes> to find the total number of
changes.
=head2 db:close
db:close()
Closes a database. All SQL statements prepared using
L<C<db:prepare()>|/db:prepare> should
have been finalized before this function is called. The function returns
C<sqlite3.OK> on success or else a numerical error code (see the list of
L</Numerical error and result codes>).
=head2 db:close_vm
db:close_vm(temponly)
Finalizes all statements that have not been explicitly finalized. If
C<temponly> is true, only internal, temporary statements are finalized.
This function returns nothing.
=head2 db:create_aggregate
db:create_aggregate(name,nargs,step,final)
This function creates an aggregate callback function. Aggregates perform
an operation over all rows in a query. C<name> is a string with the name
of the aggregate function as given in an SQL statement; C<nargs> is the
number of arguments this call will provide. C<step> is the actual Lua
function that gets called once for every row; it should accept a function
context (see L</Methods for callback contexts>) plus the same number of
parameters as given in C<nargs>. C<final> is a function that is called
once after all rows have been processed; it receives one argument, the
function context.
The function context can be used inside the two callback functions to
communicate with SQLite3. Here is a simple example:
db:exec[=[
CREATE TABLE numbers(num1,num2);
INSERT INTO numbers VALUES(1,11);
INSERT INTO numbers VALUES(2,22);
INSERT INTO numbers VALUES(3,33);
]=]
local num_sum=0
local function oneRow(context,num) -- add one column in all rows
num_sum=num_sum+num
end
local function afterLast(context) -- return sum after last row has been processed
context:result_number(num_sum)
num_sum=0
end
db:create_aggregate("do_the_sums",1,oneRow,afterLast)
for sum in db:urows('SELECT do_the_sums(num1) FROM numbers') do print("Sum of col 1:",sum) end
for sum in db:urows('SELECT do_the_sums(num2) FROM numbers') do print("Sum of col 2:",sum) end
This prints:
Sum of col 1: 6
Sum of col 2: 66
=head2 db:create_collation
db:create_collation(name,func)
This creates a collation callback. A collation callback is used to
establish a collation order, mostly for string comparisons and sorting
purposes. C<name> is a string with the name of the collation to be created;
C<func> is a function that accepts two string arguments, compares them
and returns 0 if both strings are identical, -1 if the first argument is
lower in the collation order than the second and 1 if the first argument
is higher in the collation order than the second. A simple example:
local function collate(s1,s2)
s1=s1:lower()
s2=s2:lower()
if s1==s2 then return 0
elseif s1<s2 then return -1
else return 1 end
end
db:exec[=[
CREATE TABLE test(id INTEGER PRIMARY KEY,content COLLATE CINSENS);
INSERT INTO test VALUES(NULL,'hello world');
INSERT INTO test VALUES(NULL,'Buenos dias');
INSERT INTO test VALUES(NULL,'HELLO WORLD');
]=]
db:create_collation('CINSENS',collate)
for row in db:nrows('SELECT * FROM test') do print(row.id,row.content) end
=head2 db:create_function
db:create_function(name,nargs,func)
This function creates a callback function. Callback function are called
by SQLite3 once for every row in a query. C<name> is a string with the
name of the callback function as given in an SQL statement; C<nargs> is
the number of arguments this call will provide. C<func> is the actual Lua
function that gets called once for every row; it should accept a
function context (see L</Methods for callback contexts>) plus the same
number of parameters as given in nargs. Here is an example:
db:exec'CREATE TABLE test(col1,col2,col3)'
db:exec'INSERT INTO test VALUES(1,2,4)'
db:exec'INSERT INTO test VALUES(2,4,9)'
db:exec'INSERT INTO test VALUES(3,6,16)'
db:create_function('sum_cols',3,function(ctx,a,b,c)
ctx:result_number(a+b+c)
end))
for col1,col2,col3,sum in db:urows('SELECT *,sum_cols(col1,col2,col3) FROM test') do
util.printf('%2i+%2i+%2i=%2i\n',col1,col2,col3,sum)
end
=head2 db:errcode
db:errcode()
db:error_code()
Returns the numerical result code (or extended result code) for the most
recent failed call associated with database db. See
L</Numerical error and result codes> for details.
=head2 db:errmsg
db:errmsg()
db:error_message()
Returns a string that contains an error message for the most recent
failed call associated with database db.
=head2 db:exec
db:exec(sql[,func[,udata]])
db:execute(sql[,func[,udata]])
Compiles and executes the SQL statement(s) given in string C<sql>. The
statements are simply executed one after the other and not stored. The
function returns C<sqlite3.OK> on success or else a numerical error code
(see L</Numerical error and result codes>).
If one or more of the SQL statements are queries, then the callback
function specified in C<func> is invoked once for each row of the query
result (if C<func> is nil, no callback is invoked). The callback receives
four arguments: C<udata> (the third parameter of the C<db:exec()> call),
the number of columns in the row, a table with the column values and
another table with the column names. The callback function should return
0. If the callback returns a non-zero value then the query is aborted,
all subsequent SQL statements are skipped and C<db:exec()> returns
C<sqlite3.ABORT>. Here is a simple example:
sql=[=[
CREATE TABLE numbers(num1,num2,str);
INSERT INTO numbers VALUES(1,11,"ABC");
INSERT INTO numbers VALUES(2,22,"DEF");
INSERT INTO numbers VALUES(3,33,"UVW");
INSERT INTO numbers VALUES(4,44,"XYZ");
SELECT * FROM numbers;
]=]
function showrow(udata,cols,values,names)
assert(udata=='test_udata')
print('exec:')
for i=1,cols do print('',names[i],values[i]) end
return 0
end
db:exec(sql,showrow,'test_udata')
=head2 db:interrupt
db:interrupt()
This function causes any pending database operation to abort and return
at the next opportunity. This function returns nothing.
=head2 db:isopen
db:isopen()
Returns true if database db is open, false otherwise.
=head2 db:last_insert_rowid
db:last_insert_rowid()
This function returns the rowid of the most recent INSERT into the
database. If no inserts have ever occurred, 0 is returned. (Each row in
an SQLite table has a unique 64-bit signed integer key called the
'rowid'. This id is always available as an undeclared column named
ROWID, OID, or _ROWID_. If the table has a column of type INTEGER
PRIMARY KEY then that column is another alias for the rowid.)
If an INSERT occurs within a trigger, then the rowid of the inserted row
is returned as long as the trigger is running. Once the trigger
terminates, the value returned reverts to the last value inserted before
the trigger fired.
=head2 db:nrows
db:nrows(sql)
Creates an iterator that returns the successive rows selected by the SQL
statement given in string C<sql>. Each call to the iterator returns a
table in which the named fields correspond to the columns in the database.
Here is an example:
db:exec[=[
CREATE TABLE numbers(num1,num2);
INSERT INTO numbers VALUES(1,11);
INSERT INTO numbers VALUES(2,22);
INSERT INTO numbers VALUES(3,33);
]=]
for a in db:nrows('SELECT * FROM numbers') do table.print(a) end
This script prints:
num2: 11
num1: 1
num2: 22
num1: 2
num2: 33
num1: 3
=head2 db:prepare
db:prepare(sql)
This function compiles the SQL statement in string C<sql> into an internal
representation and returns this as userdata. The returned object should
be used for all further method calls in connection with this specific
SQL statement (see L</Methods for prepared statements>).
=head2 db:progress_handler
db:progress_handler(n,func,udata)
This function installs a callback function C<func> that is invoked
periodically during long-running calls to L<C<db:exec()>|/db:exec>
or L<C<stmt:step()>|/stmt:step>. The
progress callback is invoked once for every C<n> internal operations,
where C<n> is the first argument to this function. C<udata> is passed to
the progress callback function each time it is invoked. If a call to
C<db:exec()> or C<stmt:step()> results in fewer than C<n> operations
being executed, then the progress callback is never invoked. Only a
single progress callback function may be registered for each opened
database and a call to this function will overwrite any previously set
callback function. To remove the progress callback altogether, pass nil
as the second argument.
If the progress callback returns a result other than 0, then the current
query is immediately terminated, any database changes are rolled back
and the containing C<db:exec()> or C<stmt:step()> call returns
C<sqlite3.INTERRUPT>. This feature can be used to cancel long-running
queries.
=head2 db:rows
db:rows(sql)
Creates an iterator that returns the successive rows selected by the SQL
statement given in string C<sql>. Each call to the iterator returns a table
in which the numerical indices 1 to n correspond to the selected columns
1 to n in the database. Here is an example:
db:exec[=[
CREATE TABLE numbers(num1,num2);
INSERT INTO numbers VALUES(1,11);
INSERT INTO numbers VALUES(2,22);
INSERT INTO numbers VALUES(3,33);
]=]
for a in db:rows('SELECT * FROM numbers') do table.print(a) end
This script prints:
1: 1
2: 11
1: 2
2: 22
1: 3
2: 33
=head2 db:total_changes
db:total_changes()
This function returns the number of database rows that have been
modified by INSERT, UPDATE or DELETE statements since the database was
opened. This includes UPDATE, INSERT and DELETE statements executed as
part of trigger programs. All changes are counted as soon as the
statement that produces them is completed by calling either
L<C<stmt:reset()>|/stmt:reset> or L<C<stmt:finalize()>|/stmt:finalize>.
=head2 db:trace
db:trace(func,udata)
This function installs a trace callback handler. C<func> is a Lua
function that is called by SQLite3 just before the evaluation of an SQL
statement. This callback receives two arguments: the first is the
C<udata> argument used when the callback was installed; the second is a
string with the SQL statement about to be executed.
=head2 db:urows
db:urows(sql)
Creates an iterator that returns the successive rows selected by the SQL
statement given in string C<sql>. Each call to the iterator returns the
values that correspond to the columns in the currently selected row.
Here is an example:
db:exec[=[
CREATE TABLE numbers(num1,num2);
INSERT INTO numbers VALUES(1,11);
INSERT INTO numbers VALUES(2,22);
INSERT INTO numbers VALUES(3,33);
]=]
for num1,num2 in db:urows('SELECT * FROM numbers') do print(num1,num2) end
This script prints:
1 11
2 22
3 33
=head1 Methods for prepared statements
After creating a prepared statement with L<C<db:prepare()>|/db:prepare>
the returned statement object should be used for all further calls in
connection with that statement. Statement objects support the following
methods.
=head2 stmt:bind
stmt:bind(n[,value])
Binds value to statement parameter C<n>. If the type of value is string
or number, it is bound as text or double, respectively. If C<value> is a
boolean or nil or missing, any previous binding is removed. The function
returns C<sqlite3.OK> on success or else a numerical error code (see
L</Numerical error and result codes>).
=head2 stmt:bind_blob
stmt:bind_blob(n,blob)
Binds string C<blob> (which can be a binary string) as a blob to
statement parameter C<n>. The function returns C<sqlite3.OK> on success
or else a numerical error code (see L</Numerical error and result codes>).
=head2 stmt:bind_names
stmt:bind_names(nametable)
Binds the values in C<nametable> to statement parameters. If the
statement parameters are named (i.e., of the form ":AAA" or "$AAA")
then this function looks for appropriately named fields in C<nametable>;
if the statement parameters are
not named, it looks for numerical fields 1 to the number of statement
parameters. The function returns C<sqlite3.OK> on success or else a
numerical error code (see L</Numerical error and result codes>).
=head2 stmt:bind_parameter_count
stmt:bind_parameter_count()
Returns the largest statement parameter index in prepared statement
C<stmt>. When the statement parameters are of the forms ":AAA" or "?",
then they are assigned sequentially increasing numbers beginning with
one, so the value returned is the number of parameters. However if the
same statement parameter name is used multiple times, each occurrence
is given the same number, so the value returned is the number of unique
statement parameter names.
If statement parameters of the form "?NNN" are used (where NNN is an
integer) then there might be gaps in the numbering and the value
returned by this interface is the index of the statement parameter with
the largest index value.
=head2 stmt:bind_parameter_name
stmt:bind_parameter_name(n)
Returns the name of the C<n>-th parameter in prepared statement C<stmt>.
Statement parameters of the form ":AAA" or "@AAA" or "$VVV" have a name
which is the string ":AAA" or "@AAA" or "$VVV". In other words, the
initial ":" or "$" or "@" is included as part of the name. Parameters
of the form "?" or "?NNN" have no name. The first bound parameter has
an index of 1.
If the value C<n> is out of range or if the C<n>-th parameter is
nameless, then nil is returned. The function returns C<sqlite3.OK> on
success or else a numerical error code (see
L</Numerical error and result codes>)
=head2 stmt:bind_values
stmt:bind_values(value1,value2,...,valueN)
Binds the given values to statement parameters. The function returns
C<sqlite3.OK> on success or else a numerical error code (see
L</Numerical error and result codes>).
=head2 stmt:columns
stmt:columns()
Returns the number of columns in the result set returned by statement
stmt or 0 if the statement does not return data (for example an UPDATE).
=head2 stmt:finalize
stmt:finalize()
This function frees prepared statement stmt. If the statement was
executed successfully, or not executed at all, then C<sqlite3.OK> is
returned. If execution of the statement failed then an error code is
returned.
=head2 stmt:get_name
stmt:get_name(n)
Returns the name of column C<n> in the result set of statement stmt. (The
left-most column is number 0.)
=head2 stmt:get_named_types
stmt:get_named_types()
Returns a table with the names and types of all columns in the result
set of statement stmt.
=head2 stmt:get_named_values
stmt:get_named_values()
This function returns a table with names and values of all columns in
the current result row of a query.
=head2 stmt:get_names
stmt:get_names()
This function returns an array with the names of all columns in the
result set returned by statement stmt.
=head2 stmt:get_type
stmt:get_type(n)
Returns the type of column C<n> in the result set of statement stmt. (The
left-most column is number 0.)
=head2 stmt:get_types
stmt:get_types()
This function returns an array with the types of all columns in the
result set returned by statement stmt.
=head2 stmt:get_unames
stmt:get_unames()
This function returns a list with the names of all columns in the result
set returned by statement stmt.
=head2 stmt:get_utypes
stmt:get_utypes()
This function returns a list with the types of all columns in the result
set returned by statement stmt.
=head2 stmt:get_uvalues
stmt:get_uvalues()
This function returns a list with the values of all columns in the
current result row of a query.
=head2 stmt:get_value
stmt:get_value(n)
Returns the value of column C<n> in the result set of statement stmt. (The
left-most column is number 0.)
=head2 stmt:get_values
stmt:get_values()
This function returns an array with the values of all columns in the
result set returned by statement stmt.
=head2 stmt:isopen
stmt:isopen()
Returns true if stmt has not yet been finalized, false otherwise.
=head2 stmt:nrows
stmt:nrows()
Returns an function that iterates over the names and values of the
result set of statement C<stmt>. Each iteration returns a table with the
names and values for the current row.
This is the prepared statement equivalent of L<C<db:nrows()>|/db:nrows>.
=head2 stmt:reset
stmt:reset()
This function resets SQL statement C<stmt>, so that it is ready to be
re-executed. Any statement variables that had values bound to them using
the C<stmt:bind*()> functions retain their values.
=head2 stmt:rows
stmt:rows()
Returns an function that iterates over the values of the result set of
statement stmt. Each iteration returns an array with the values for the
current row.
This is the prepared statement equivalent of L<C<db:rows()>|/db:rows>.
=head2 stmt:step
stmt:step()
This function must be called to evaluate the (next iteration of the)
prepared statement stmt. It will return one of the following values:
=over 4
=item *
C<sqlite3.BUSY>: the engine was unable to acquire the locks needed. If the
statement is a COMMIT or occurs outside of an explicit transaction, then
you can retry the statement. If the statement is not a COMMIT and occurs
within a explicit transaction then you should rollback the transaction
before continuing.
=item *
C<sqlite3.DONE>: the statement has finished executing successfully.
L<C<stmt:step()>|/stmt:step> should not be called again on this statement
without first calling L<C<stmt:reset()>|/stmt:reset> to reset the virtual
machine back to the initial state.
=item *
C<sqlite3.ROW>: this is returned each time a new row of data is ready for
processing by the caller. The values may be accessed using the column
access functions. L<C<stmt:step()>|/stmt:step> can be called again to
retrieve the next row of data.
=item *
C<sqlite3.ERROR>: a run-time error (such as a constraint violation) has
occurred. L<C<stmt:step()>|/stmt:step> should not be called again. More
information may be found by calling L<C<db:errmsg()>|/db:errmsg>. A more
specific error
code (can be obtained by calling L<C<stmt:reset()>|/stmt:reset>.
=item *
C<sqlite3.MISUSE>: the function was called inappropriately, perhaps
because the statement has already been finalized or a previous call to
L<C<stmt:step()>|/stmt:step> has returned C<sqlite3.ERROR> or
C<sqlite3.DONE>.
=back
=head2 stmt:urows
stmt:urows()
Returns an function that iterates over the values of the result set of
statement stmt. Each iteration returns the values for the current row.
This is the prepared statement equivalent of L<C<db:urows()>|/db:urows>.
=head1 Methods for callback contexts
A callback context is available as a parameter inside the callback
functions L<C<db:create_aggregate()>|/db:create_aggregate> and
L<C<db:create_function()>|/db:create_function>. It can be used
to get further information about the state of a query.
=head2 context:aggregate_count
context:aggregate_count()
Returns the number of calls to the aggregate step function.
=head2 context:get_aggregate_data
context:get_aggregate_data()
Returns the user-definable data field for callback funtions.
=head2 context:set_aggregate_data
context:set_aggregate_data(udata)
Set the user-definable data field for callback funtions to C<udata>.
=head2 context:result
context:result(res)
This function sets the result of a callback function to res. The type of
the result depends on the type of res and is either a number or a string
or nil. All other values will raise an error message.
=head2 context:result_null
context:result_null()
This function sets the result of a callback function to nil. It returns
nothing.
=head2 context:result_number
context:result_number(number)
context:result_double(number)
This function sets the result of a callback function to the value
C<number>. It returns nothing.
=head2 context:result_int
context:result_int(number)
This function sets the result of a callback function to the integer
value in C<number>. It returns nothing.
=head2 context:result_text
context:result_text(str)
This function sets the result of a callback function to the string in
C<str>. It returns nothing.
=head2 context:result_blob
context:result_blob(blob)
This function sets the result of a callback function to the binary
string in C<blob>. It returns nothing.
=head2 context:result_error
context:result_error(err)
This function sets the result of a callback function to the error value
in C<err>. It returns nothing.
=head2 context:user_data
context:user_data()
Returns the userdata parameter given in the call to install the callback
function (see L<C<db:create_aggregate()>|/db:create_aggregate> and
L<C<db:create_function()>|/db:create_function> for details).
=head1 Numerical error and result codes
The following constants are defined by module sqlite3:
OK: 0 ERROR: 1 INTERNAL: 2 PERM: 3 ABORT: 4
BUSY: 5 LOCKED: 6 NOMEM: 7 READONLY: 8 INTERRUPT: 9
IOERR: 10 CORRUPT: 11 NOTFOUND: 12 FULL: 13 CANTOPEN: 14
PROTOCOL: 15 EMPTY: 16 SCHEMA: 17 TOOBIG: 18 CONSTRAINT: 19
MISMATCH: 20 MISUSE: 21 NOLFS: 22 FORMAT: 24 RANGE: 25
NOTADB: 26 ROW: 100 DONE: 101
For details about their exact meaning please see the B<SQLite3
documentation> L<http://www.sqlite.org/>.
=head1 VERSION
This is C<lsqlite3> subversion 6, also known as "devel-0.6".
=head1 CREDITS
C<lsqlite3> was developed by Tiago Dionizio and Doug Currie with
contributions from Thomas Lauer and Michael Roth.
This documentation is based on the "(very) preliminary" documents
for the Idle-SQLite3 database module. Thanks to Thomas Lauer for
making it available.
=head1 LICENSE
/************************************************************************
* lsqlite3 *
* Copyright (C) 2002-2007 Tiago Dionizio, Doug Currie *
* All rights reserved. *
* Author : Tiago Dionizio <tiago.dionizio@ist.utl.pt> *
* Author : Doug Currie <doug.currie@alum.mit.edu> *
* Library : lsqlite3 - a SQLite 3 database binding for Lua 5 *
* *
* Permission is hereby granted, free of charge, to any person obtaining *
* a copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to *
* the following conditions: *
* *
* The above copyright notice and this permission notice shall be *
* included in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, *
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY *
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, *
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE *
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
************************************************************************/
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