From e0e39b1d926f1b45fa76c3c2f9d3dad1fadae124 Mon Sep 17 00:00:00 2001
From: "Michael R. Crusoe" <1330696+mr-c@users.noreply.github.com>
Date: Tue, 10 Sep 2024 12:56:24 +0200
Subject: [PATCH] mark several strings as raw

To deal with a Windows slash, and other sequences that get
misinterpreted as escape sequences

Prevents the following warnings:

```
/usr/share/invesalius/app.py:507: SyntaxWarning: invalid escape sequence '\I'
  key = "InVesalius 3.1\InstalliationDir"
/usr/share/invesalius/invesalius/data/transformations.py:33: SyntaxWarning: invalid escape sequence '\*'
  """Homogeneous Transformation Matrices and Quaternions.
/usr/share/invesalius/invesalius/data/transformations.py:890: SyntaxWarning: invalid escape sequence '\*'
  """Return affine transform matrix to register two point sets.
/usr/share/invesalius/invesalius/data/transformations.py:999: SyntaxWarning: invalid escape sequence '\*'
  """Return matrix to transform given 3D point set into second point set.
/usr/share/invesalius/invesalius/reader/bitmap_reader.py:121: SyntaxWarning: invalid escape sequence '\d'
  c_re = re.compile("\d+")
```
---
 app.py                             | 2 +-
 invesalius/data/transformations.py | 6 +++---
 invesalius/reader/bitmap_reader.py | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/app.py b/app.py
index 6ce84a0ff..c18452f43 100644
--- a/app.py
+++ b/app.py
@@ -520,7 +520,7 @@ def init():
     if hasattr(sys, "frozen") and sys.platform.startswith("win"):
         # Click in the .inv3 file support
         root = winreg.HKEY_CLASSES_ROOT
-        key = "InVesalius 3.1\InstallationDir"
+        key = r"InVesalius 3.1\InstallationDir"
         hKey = winreg.OpenKey(root, key, 0, winreg.KEY_READ)
         value, type_ = winreg.QueryValueEx(hKey, "")
         path = os.path.join(value, "dist")
diff --git a/invesalius/data/transformations.py b/invesalius/data/transformations.py
index b50ecb1ea..451c3b2ab 100644
--- a/invesalius/data/transformations.py
+++ b/invesalius/data/transformations.py
@@ -30,7 +30,7 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.
 
-"""Homogeneous Transformation Matrices and Quaternions.
+r"""Homogeneous Transformation Matrices and Quaternions.
 
 A library for calculating 4x4 matrices for translating, rotating, reflecting,
 scaling, shearing, projecting, orthogonalizing, and superimposing arrays of
@@ -896,7 +896,7 @@ def orthogonalization_matrix(lengths, angles):
 
 
 def affine_matrix_from_points(v0, v1, shear=True, scale=True, usesvd=True):
-    """Return affine transform matrix to register two point sets.
+    r"""Return affine transform matrix to register two point sets.
 
     v0 and v1 are shape (ndims, \*) arrays of at least ndims non-homogeneous
     coordinates, where ndims is the dimensionality of the coordinate space.
@@ -1007,7 +1007,7 @@ def affine_matrix_from_points(v0, v1, shear=True, scale=True, usesvd=True):
 
 
 def superimposition_matrix(v0, v1, scale=False, usesvd=True):
-    """Return matrix to transform given 3D point set into second point set.
+    r"""Return matrix to transform given 3D point set into second point set.
 
     v0 and v1 are shape (3, \*) or (4, \*) arrays of at least 3 points.
 
diff --git a/invesalius/reader/bitmap_reader.py b/invesalius/reader/bitmap_reader.py
index dda01bbbe..bc9dabfc4 100644
--- a/invesalius/reader/bitmap_reader.py
+++ b/invesalius/reader/bitmap_reader.py
@@ -127,7 +127,7 @@ def Add(self, bmp):
         self.bitmapfiles.append(bmp)
 
     def Sort(self, x):
-        c_re = re.compile("\d+")
+        c_re = re.compile(r"\d+")
         if len(c_re.findall(x[6])) > 0:
             return [int(i) for i in c_re.findall(x[6])]
         else: