Converting chained APDL commands to PyMAPDL context manager. (#3154)

src/ansys/mapdl/core/convert.py

@@ -584,6 +584,8 @@ def __init__(
             + list(self._enum_block_commands)
         )
 
+        self._chained_commands = 0
+        self.chained_commands = False
         self._block_count = 0
         self._block_count_target = 0
         self._in_block = False
@@ -684,6 +686,17 @@ def line_ending(self, line_ending):
 
     def translate_line(self, line):
         """Converts a single line from an ANSYS APDL script"""
+
+        if "$" in line:
+            # these are chained commands.
+            lines = line.split("$")
+            self.start_chained_commands()
+            for each_line in lines:
+                self.translate_line(each_line)
+
+            self.end_chained_commands()
+            return
+
         self.comment = ""
         original_line = line.replace("\r\n", "").replace(
             "\n", ""
@@ -1133,6 +1146,21 @@ def end_non_interactive(self):
             self.indent = self.indent[4:]
             self.non_interactive = False
 
+    def start_chained_commands(self):
+        self._chained_commands += 1
+        if self.chained_commands:
+            return
+        line = f"{self.indent}with {self.obj_name}.chain_commands:"
+        self.lines.append(line)
+        self.chained_commands = True
+        self.indent = self.indent + "    "
+
+    def end_chained_commands(self):
+        self._chained_commands -= 1
+        if self._chained_commands <= 0:
+            self.indent = self.indent[4:]
+            self.chained_commands = False
+
     def output_to_file(self, line):
         """Return if an APDL line is redirecting to a file."""
         if line[:4].upper() == "/OUT":

tests/test_convert.py

@@ -714,3 +714,35 @@ def test_convert_sf_all_inf():
 
 def test_convert_slash_typef():
     assert "mapdl.slashtype()" in convert_apdl_block("/TYPE", only_commands=True)
+
+
+def test_chained_commands():
+    assert """with mapdl.chain_commands:
+    mapdl.type(11)
+    mapdl.real(11)
+    mapdl.mat(11)""" in convert_apdl_block(
+        "type,11 $real,11 $mat,11", only_commands=True
+    )
+
+    assert """with mapdl.chain_commands:
+    mapdl.esel("s")
+    mapdl.real(11)
+    mapdl.mat(22)
+    mapdl.com("hi")
+    # hello""" in convert_apdl_block(
+        "esel,s $real,11 $mat,22 $/com hi $!hello", only_commands=True
+    )
+
+    assert """mapdl.esel("s")
+with mapdl.chain_commands:
+    mapdl.real(11)
+    mapdl.mat(22)
+    mapdl.com("hi")
+    # hello
+mapdl.nsel()""" in convert_apdl_block(
+        """
+esel,s
+real,11 $mat,22 $/com hi $!hello
+nsel,""",
+        only_commands=True,
+    )