Add more tests for C++11 raw string literals

Test added to check fixes for:

- Issue swig#948 and issue swig#1019 and issue swig#1273 - raw string delimiters
  not being stripped off
- Issue swig#538 - Ruby support for "docstring" feature

Author: wsfulton

CHANGES.current

@@ -7,6 +7,12 @@ the issue number to the end of the URL: https://github.com/swig/swig/issues/
 Version 4.0.0 (in progress)
 ===========================
 
+2019-01-05: wsfulton
+            #948 #1019 #1273 Fix for C++11 raw strings where the delimiters were mistakenly left
+            in the string contents in situations where the string was copied into generated code.
+            For example, %constant, the "docstring" feature and for C#/Java/D constants turned on
+            with %javaconst/%csconst/%dmanifestconst.
+
 2019-01-05: wsfulton
             [Ruby] #538. Fix Ruby support for %feature("docstring").
 

Examples/test-suite/cpp11_raw_string_literals.i

@@ -59,3 +59,43 @@ const char16_t  *hh =  uR"XXX(I'm a "raw UTF-16" \ string.)XXX";
 const char32_t  *ii =  UR"XXX(I'm a "raw UTF-32" \ string.)XXX";
 %}
 
+// Constants
+#if defined(SWIGJAVA)
+%javaconst(1);
+#elif SWIGCSHARP
+%csconst(1);
+#elif SWIGD
+%dmanifestconst;
+#endif
+
+%inline %{
+#define   jj          ")I'm an \"ascii\" \\ string constant."
+#define   kk     R"XXX()I'm an "ascii" \ string constant.)XXX";
+%}
+
+%constant mm =   R"XXX()I'm an "ascii" \ string constant with multiple
+
+lines.)XXX";
+
+// docstring feature
+%feature("docstring") RawStringDoc::WW "Single line documentation comment"
+%feature("docstring") RawStringDoc::XX %{
+Multi-line
+documentation
+comment
+%}
+%feature("docstring") RawStringDoc::YY R"RRR(Single line "raw string" documentation comment)RRR"
+%feature("docstring") RawStringDoc::ZZ R"FOO(Documentation comment
+
+as a "raw string"
+on multiple lines including a \ backslash)FOO"
+
+%inline %{
+struct RawStringDoc {
+  void WW() {}
+  void XX() {}
+  void YY() {}
+  void ZZ() {}
+};
+%}
+

Examples/test-suite/java/cpp11_raw_string_literals_runme.java

@@ -0,0 +1,67 @@
+import cpp11_raw_string_literals.*;
+
+public class cpp11_raw_string_literals_runme {
+
+  static {
+    try {
+	System.loadLibrary("cpp11_raw_string_literals");
+    } catch (UnsatisfiedLinkError e) {
+      System.err.println("Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" + e);
+      System.exit(1);
+    }
+  }
+
+  public static void main(String argv[]) {
+    if (cpp11_raw_string_literals.getL() != 100)
+      throw new RuntimeException("failed!");
+
+    if (cpp11_raw_string_literals.getU8() != 100)
+      throw new RuntimeException("failed!");
+
+    if (cpp11_raw_string_literals.getU() != 100)
+      throw new RuntimeException("failed!");
+
+    if (UStruct.U != 100)
+      throw new RuntimeException("failed!");
+
+
+    if (cpp11_raw_string_literals.getR() != 100)
+      throw new RuntimeException("failed!");
+
+    if (cpp11_raw_string_literals.getLR() != 100)
+      throw new RuntimeException("failed!");
+
+    if (cpp11_raw_string_literals.getU8R() != 100)
+      throw new RuntimeException("failed!");
+
+    if (cpp11_raw_string_literals.getUR() != 100)
+      throw new RuntimeException("failed!");
+
+    if (URStruct.UR != 100)
+      throw new RuntimeException("failed!");
+
+
+    if (!cpp11_raw_string_literals.getAa().equals("Wide string"))
+      throw new RuntimeException("failed!");
+
+    if (!cpp11_raw_string_literals.getBb().equals("UTF-8 string"))
+      throw new RuntimeException("failed!");
+
+    if (!cpp11_raw_string_literals.getXx().equals(")I'm an \"ascii\" \\ string."))
+      throw new RuntimeException("failed!");
+
+    if (!cpp11_raw_string_literals.getEe().equals(")I'm an \"ascii\" \\ string."))
+      throw new RuntimeException("failed!");
+
+    if (!cpp11_raw_string_literals.getFf().equals("I'm a \"raw wide\" \\ string."))
+      throw new RuntimeException("failed!");
+
+    if (!cpp11_raw_string_literals.getGg().equals("I'm a \"raw UTF-8\" \\ string."))
+      throw new RuntimeException("failed!");
+
+
+
+    if (!cpp11_raw_string_literalsConstants.mm.equals(")I'm an \"ascii\" \\ string constant with multiple\n\nlines."))
+      throw new RuntimeException("failed!");
+  }
+}

Examples/test-suite/python/cpp11_raw_string_literals_runme.py

@@ -1,4 +1,5 @@
 from cpp11_raw_string_literals import *
+import inspect
 
 if cvar.L != 100:
     raise RuntimeError
@@ -46,3 +47,29 @@
 
 if cvar.gg != "I'm a \"raw UTF-8\" \\ string.":
     raise RuntimeError, cvar.gg
+
+
+def check(got, expected):
+    expected_list = expected.split("\n")
+    got_list = got.split("\n")
+
+    if expected_list != got_list:
+        raise RuntimeError("\n" + "Expected: " + str(expected_list) + "\n" + "Got     : " + str(got_list))
+
+# When getting docstrings, use inspect.getdoc(x) instead of x.__doc__ otherwise the different options
+# such as -O and -builtin may produce different initial indentation.
+check(inspect.getdoc(RawStringDoc.WW), "Single line documentation comment")
+check(inspect.getdoc(RawStringDoc.XX),
+"""Multi-line
+documentation
+comment""")
+check(inspect.getdoc(RawStringDoc.YY), """Single line "raw string" documentation comment""")
+check(inspect.getdoc(RawStringDoc.ZZ),
+"""Documentation comment
+
+as a "raw string"
+on multiple lines including a \ backslash""")
+
+check(mm, """)I'm an "ascii" \ string constant with multiple
+
+lines.""")