Merge pull request #1290 from nschloe/rename-sets

fixes for flac3d, vtk, vtu

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = meshio
-version = 5.3.0
+version = 5.3.1
 author = Nico Schlömer et al.
 author_email = [email protected]
 description = I/O for many mesh formats

src/meshio/_common.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from xml.etree import ElementTree as ET
 
 import numpy as np
@@ -120,6 +122,10 @@ def _pick_first_int_data(data):
     return key, other
 
 
+def info(string, highlight: bool = True) -> None:
+    Console(stderr=True).print(f"[bold]Info:[/bold] {string}", highlight=highlight)
+
+
 def warn(string, highlight: bool = True) -> None:
     Console(stderr=True).print(
         f"[yellow][bold]Warning:[/bold] {string}[/yellow]", highlight=highlight
@@ -130,3 +136,34 @@ def error(string, highlight: bool = True) -> None:
     Console(stderr=True).print(
         f"[red][bold]Error:[/bold] {string}[/red]", highlight=highlight
     )
+
+
+def is_in_any(string: str, strings: list[str]) -> bool:
+    """True if `string` is contained in any of `strings`."""
+    for s in strings:
+        if string in s:
+            return True
+    return False
+
+
+def join_strings(strings: list[str]) -> tuple[str, str]:
+    """Join strings such that they can be uniquely split again afterwards."""
+    possible_join_chars = ["-", "_", "#", "+", "/"]
+    char = None
+    for c in possible_join_chars:
+        if not is_in_any(c, strings):
+            char = c
+            break
+    assert char is not None
+    return char.join(strings), char
+
+
+def replace_space(string: str) -> tuple[str, str]:
+    possible_chars = ["_", "-", "+", "X", "/", "#"]
+    char = None
+    for c in possible_chars:
+        if c not in string:
+            char = c
+            break
+    assert char is not None
+    return string.replace(" ", char), char

src/meshio/_helpers.py

@@ -101,10 +101,16 @@ def _read_file(path: Path, file_format: str | None):
 
         try:
             return reader_map[file_format](str(path))
-        except ReadError:
-            pass
+        except ReadError as e:
+            print(e)
+
+    if len(possible_file_formats) == 1:
+        msg = f"Couldn't read file {path} as {possible_file_formats[0]}"
+    else:
+        lst = ", ".join(possible_file_formats)
+        msg = f"Couldn't read file {path} as either of {lst}"
 
-    error(f"Couldn't read file {path} as either of {', '.join(possible_file_formats)}")
+    error(msg)
     sys.exit(1)
 
 

src/meshio/_mesh.py

@@ -313,7 +313,7 @@ def read(cls, path_or_buf, file_format=None):
         warn("meshio.Mesh.read is deprecated, use meshio.read instead")
         return read(path_or_buf, file_format)
 
-    def cell_sets_to_data(self):
+    def cell_sets_to_data(self, data_name: str | None = None):
         # If possible, convert cell sets to integer cell data. This is possible if all
         # cells appear exactly in one group.
         default_value = -1
@@ -337,11 +337,12 @@ def cell_sets_to_data(self):
                     )
                     break
 
-            data_name = "-".join(self.cell_sets.keys())
+            if data_name is None:
+                data_name = "-".join(self.cell_sets.keys())
             self.cell_data[data_name] = intfun
             self.cell_sets = {}
 
-    def point_sets_to_data(self):
+    def point_sets_to_data(self, join_char: str = "-") -> None:
         # now for the point sets
         # Go for -1 as the default value. (NaN is not int.)
         default_value = -1
@@ -356,7 +357,7 @@ def point_sets_to_data(self):
                     f"Using default value {default_value}."
                 )
 
-            data_name = "-".join(self.point_sets.keys())
+            data_name = join_char.join(self.point_sets.keys())
             self.point_data[data_name] = intfun
             self.point_sets = {}