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pythonnet/src/runtime/pystring.cs at master · sdpython/pythonnet · GitHub
This repository was archived by the owner on Jul 22, 2023. It is now read-only.
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runtime
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pystring.cs
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using
System
;
namespace
Python
.
Runtime
{
/// <summary>
/// Represents a Python (ANSI) string object. See the documentation at
/// PY2: https://docs.python.org/2/c-api/string.html
/// PY3: No Equivalent
/// for details.
/// </summary>
/// <remarks>
/// 2011-01-29: ...Then why does the string constructor call PyUnicode_FromUnicode()???
/// </remarks>
public
class
PyString
:
PySequence
{
/// <summary>
/// PyString Constructor
/// </summary>
/// <remarks>
/// Creates a new PyString from an existing object reference. Note
/// that the instance assumes ownership of the object reference.
/// The object reference is not checked for type-correctness.
/// </remarks>
public
PyString
(
IntPtr
ptr
)
:
base
(
ptr
)
{
}
private
static
IntPtr
FromObject
(
PyObject
o
)
{
if
(
o
==
null
||
!
IsStringType
(
o
)
)
{
throw
new
ArgumentException
(
"object is not a string"
)
;
}
Runtime
.
XIncref
(
o
.
obj
)
;
return
o
.
obj
;
}
/// <summary>
/// PyString Constructor
/// </summary>
/// <remarks>
/// Copy constructor - obtain a PyString from a generic PyObject.
/// An ArgumentException will be thrown if the given object is not
/// a Python string object.
/// </remarks>
public
PyString
(
PyObject
o
)
:
base
(
FromObject
(
o
)
)
{
}
private
static
IntPtr
FromString
(
string
s
)
{
IntPtr
val
=
Runtime
.
PyUnicode_FromUnicode
(
s
,
s
.
Length
)
;
PythonException
.
ThrowIfIsNull
(
val
)
;
return
val
;
}
/// <summary>
/// PyString Constructor
/// </summary>
/// <remarks>
/// Creates a Python string from a managed string.
/// </remarks>
public
PyString
(
string
s
)
:
base
(
FromString
(
s
)
)
{
}
/// <summary>
/// IsStringType Method
/// </summary>
/// <remarks>
/// Returns true if the given object is a Python string.
/// </remarks>
public
static
bool
IsStringType
(
PyObject
value
)
{
return
Runtime
.
PyString_Check
(
value
.
obj
)
;
}
}
}
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