Exclude brackets from translation

src/scientific_plots/__init__.py

@@ -5,4 +5,4 @@ useful across several different projects and repositories. It also contains
 stub-files with several data-type annotations for scipy and matplot-lib
 functions."""
 
-__version__ = "1.8.10"
+__version__ = "1.8.11"

src/scientific_plots/plot_settings.py

@@ -13,6 +13,7 @@ import csv
 from functools import wraps
 import locale
 from pathlib import Path
+import re
 import sys
 from textwrap import dedent
 from typing import Callable, Generator, Optional, Union, overload
@@ -137,6 +138,35 @@ mpl.colormaps.register(rwth_gradient_map)
 mpl.colormaps.register(rwth_gradient_map_simple)
 
 
+def germanify_between(string: str, reverse: bool = False) -> str:
+    """Only apply the German translation to strings
+    outside of math areas indicated by dollar sings ($)"""
+    match = re.search(r"\$(.*?)\$", string)
+    if match:
+        before = str(string[:match.start()])
+        between = str(match.group(0))
+        after = str(string[match.end():])
+    else:
+        before = ""
+        between = ""
+        after = string
+
+    match = re.search(r"\[.*?\]$", string)
+    if match:
+        bracket = match.group(0)
+        bracket_start = after.find(bracket)
+        before_bracket = after[:bracket_start]
+        after_bracket = after[bracket_start + len(bracket):]
+    else:
+        bracket = ""
+        before_bracket = after
+        after_bracket = ""
+
+    return translate(before, reverse=reverse)\
+        + between + translate(before_bracket, reverse=reverse)\
+        + bracket + translate(after_bracket, reverse=reverse)
+
+
 def _germanify(ax: Axes, reverse: bool = False) -> None:
     """
     translate a figure from english to german.
@@ -165,6 +195,10 @@ def _germanify(ax: Axes, reverse: bool = False) -> None:
         if axi.get_legend():
             items += [*axi.get_legend().texts]
         for item in items:
+            if r"$" in item.get_text():
+                item.set_text(
+                    germanify_between(
+                        item.get_text(), reverse=reverse))
             item.set_text(translate(item.get_text(),
                                     reverse=reverse))
     try:

src/scientific_plots/utilities.py

@@ -198,7 +198,7 @@ def use_translator(string: str, lang1: str, lang2: str) -> str:
         result = translator.translate(string, lang1, lang2)
     except (OSError, MaxRetryError):
         return string
-    return result
+    return str(result)
 
 
 def translate(string: str, reverse: bool = False) -> str:
@@ -207,6 +207,9 @@ def translate(string: str, reverse: bool = False) -> str:
     @input reverse translate ger->en if set to true
     @return the german translation of the same string"""
 
+    if r"$" in string or not string:
+        return string
+
     if reverse:
         string = re.sub(r'(\d+),(\d+)', r'\1\.\2', string)
     else:
@@ -263,12 +266,15 @@ def translate(string: str, reverse: bool = False) -> str:
         "absolute": "absolut",
         "plot": "Graph",
         "orifice": "Blende",
-        "Hagen–Poiseuille": "Hagen-Poiseuille"
+        "Hagen–Poiseuille": "Hagen-Poiseuille",
+        "test": "Test"
     })
     if not reverse and r"\times" not in string:
         for key, value in _dict.items():
             if key in string.lower():
-                string = re.sub(key, value, string, flags=re.IGNORECASE)
+                string = re.sub(
+                    key, value, string,
+                    flags=re.IGNORECASE)
                 break
         else:
             string = use_translator(string, "german", "english")

tests/test_plot_manual.py

@@ -31,7 +31,7 @@ def test_two_plots() -> None:
     filename.parent.mkdir(exist_ok=True)
     two_plots(x_test, y_test1, "plot1",
               x_test, y_test2, "plot2",
-              "x", "y",
+              "distance", r"$\dot{m} = \frac{a}{b}$ leakage [bar]",
               filename)
     assert filename.exists()