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Copy pathpystring.cs
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85 lines (67 loc) · 2.39 KB
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// ==========================================================================
// This software is subject to the provisions of the Zope Public License,
// Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
// WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
// FOR A PARTICULAR PURPOSE.
// ==========================================================================
using System;
namespace Python.Runtime {
/// <summary>
/// Represents a Python (ansi) string object. See the documentation at
/// http://www.python.org/doc/current/api/stringObjects.html for details.
/// 2011-01-29: ...Then why does the string constructor call PyUnicode_FromUnicode()???
/// </summary>
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) {}
/// <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() {
if (!IsStringType(o)) {
throw new ArgumentException("object is not a string");
}
Runtime.Incref(o.obj);
obj = o.obj;
}
/// <summary>
/// PyString Constructor
/// </summary>
///
/// <remarks>
/// Creates a Python string from a managed string.
/// </remarks>
public PyString(string s) : base() {
obj = Runtime.PyUnicode_FromUnicode(s, s.Length);
if (obj == IntPtr.Zero) {
throw new PythonException();
}
}
/// <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);
}
}
}