import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "(ExportSTL.+?global_scale = .+?default=)(.+?),";
final String string = "# ##### BEGIN GPL LICENSE BLOCK #####\n"
+ "#\n"
+ "# This program is free software; you can redistribute it and/or\n"
+ "# modify it under the terms of the GNU General Public License\n"
+ "# as published by the Free Software Foundation; either version 2\n"
+ "# of the License, or (at your option) any later version.\n"
+ "#\n"
+ "# This program is distributed in the hope that it will be useful,\n"
+ "# but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+ "# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
+ "# GNU General Public License for more details.\n"
+ "#\n"
+ "# You should have received a copy of the GNU General Public License\n"
+ "# along with this program; if not, write to the Free Software Foundation,\n"
+ "# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.\n"
+ "#\n"
+ "# ##### END GPL LICENSE BLOCK #####\n\n"
+ "# <pep8-80 compliant>\n\n"
+ "bl_info = {\n"
+ " \"name\": \"STL format\",\n"
+ " \"author\": \"Guillaume Bouchard (Guillaum)\",\n"
+ " \"version\": (1, 1, 1),\n"
+ " \"blender\": (2, 74, 0),\n"
+ " \"location\": \"File > Import-Export > Stl\",\n"
+ " \"description\": \"Import-Export STL files\",\n"
+ " \"warning\": \"\",\n"
+ " \"wiki_url\": \"http://wiki.blender.org/index.php/Extensions:2.6/Py/\"\n"
+ " \"Scripts/Import-Export/STL\",\n"
+ " \"support\": 'OFFICIAL',\n"
+ " \"category\": \"Import-Export\",\n"
+ "}\n\n\n"
+ "# @todo write the wiki page\n\n"
+ "\"\"\"\n"
+ "Import-Export STL files (binary or ascii)\n\n"
+ "- Import automatically remove the doubles.\n"
+ "- Export can export with/without modifiers applied\n\n"
+ "Issues:\n\n"
+ "Import:\n"
+ " - Does not handle endien\n"
+ "\"\"\"\n\n"
+ "if \"bpy\" in locals():\n"
+ " import importlib\n"
+ " if \"stl_utils\" in locals():\n"
+ " importlib.reload(stl_utils)\n"
+ " if \"blender_utils\" in locals():\n"
+ " importlib.reload(blender_utils)\n\n"
+ "import os\n\n"
+ "import bpy\n"
+ "from bpy.props import (StringProperty,\n"
+ " BoolProperty,\n"
+ " CollectionProperty,\n"
+ " EnumProperty,\n"
+ " FloatProperty,\n"
+ " )\n"
+ "from bpy_extras.io_utils import (ImportHelper,\n"
+ " ExportHelper,\n"
+ " orientation_helper_factory,\n"
+ " axis_conversion,\n"
+ " )\n"
+ "from bpy.types import Operator, OperatorFileListElement\n\n\n"
+ "IOSTLOrientationHelper = orientation_helper_factory(\"IOSTLOrientationHelper\", axis_forward='Y', axis_up='Z')\n\n\n"
+ "class ImportSTL(Operator, ImportHelper, IOSTLOrientationHelper):\n"
+ " \"\"\"Load STL triangle mesh data\"\"\"\n"
+ " bl_idname = \"import_mesh.stl\"\n"
+ " bl_label = \"Import STL\"\n"
+ " bl_options = {'UNDO'}\n\n"
+ " filename_ext = \".stl\"\n\n"
+ " filter_glob = StringProperty(\n"
+ " default=\"*.stl\",\n"
+ " options={'HIDDEN'},\n"
+ " )\n"
+ " files = CollectionProperty(\n"
+ " name=\"File Path\",\n"
+ " type=OperatorFileListElement,\n"
+ " )\n"
+ " directory = StringProperty(\n"
+ " subtype='DIR_PATH',\n"
+ " )\n\n"
+ " global_scale = FloatProperty(\n"
+ " name=\"Scale\",\n"
+ " soft_min=0.001, soft_max=1000.0,\n"
+ " min=1e-6, max=1e6,\n"
+ " default=1.0,\n"
+ " )\n\n"
+ " use_scene_unit = BoolProperty(\n"
+ " name=\"Scene Unit\",\n"
+ " description=\"Apply current scene's unit (as defined by unit scale) to imported data\",\n"
+ " default=False,\n"
+ " )\n\n"
+ " def execute(self, context):\n"
+ " from . import stl_utils\n"
+ " from . import blender_utils\n"
+ " from mathutils import Matrix\n\n"
+ " paths = [os.path.join(self.directory, name.name)\n"
+ " for name in self.files]\n\n"
+ " scene = context.scene\n\n"
+ " # Take into account scene's unit scale, so that 1 inch in Blender gives 1 inch elsewhere! See T42000.\n"
+ " global_scale = self.global_scale\n"
+ " if scene.unit_settings.system != 'NONE' and self.use_scene_unit:\n"
+ " global_scale /= scene.unit_settings.scale_length\n\n"
+ " global_matrix = axis_conversion(from_forward=self.axis_forward,\n"
+ " from_up=self.axis_up,\n"
+ " ).to_4x4() * Matrix.Scale(global_scale, 4)\n\n"
+ " if not paths:\n"
+ " paths.append(self.filepath)\n\n"
+ " if bpy.ops.object.mode_set.poll():\n"
+ " bpy.ops.object.mode_set(mode='OBJECT')\n\n"
+ " if bpy.ops.object.select_all.poll():\n"
+ " bpy.ops.object.select_all(action='DESELECT')\n\n"
+ " for path in paths:\n"
+ " objName = bpy.path.display_name(os.path.basename(path))\n"
+ " tris, pts = stl_utils.read_stl(path)\n"
+ " blender_utils.create_and_link_mesh(objName, tris, pts, global_matrix)\n\n"
+ " return {'FINISHED'}\n\n\n"
+ "class ExportSTL(Operator, ExportHelper, IOSTLOrientationHelper):\n"
+ " \"\"\"Save STL triangle mesh data from the active object\"\"\"\n"
+ " bl_idname = \"export_mesh.stl\"\n"
+ " bl_label = \"Export STL\"\n\n"
+ " filename_ext = \".stl\"\n"
+ " filter_glob = StringProperty(default=\"*.stl\", options={'HIDDEN'})\n\n"
+ " global_scale = FloatProperty(\n"
+ " name=\"Scale\",\n"
+ " min=0.01, max=1000.0,\n"
+ " default=1.0,\n"
+ " )\n\n"
+ " use_scene_unit = BoolProperty(\n"
+ " name=\"Scene Unit\",\n"
+ " description=\"Apply current scene's unit (as defined by unit scale) to exported data\",\n"
+ " default=False,\n"
+ " )\n"
+ " ascii = BoolProperty(\n"
+ " name=\"Ascii\",\n"
+ " description=\"Save the file in ASCII file format\",\n"
+ " default=False,\n"
+ " )\n"
+ " use_mesh_modifiers = BoolProperty(\n"
+ " name=\"Apply Modifiers\",\n"
+ " description=\"Apply the modifiers before saving\",\n"
+ " default=False,\n"
+ " )\n\n\n"
+ " def execute(self, context):\n"
+ " from . import stl_utils\n"
+ " from . import blender_utils\n"
+ " import itertools\n"
+ " from mathutils import Matrix\n"
+ " keywords = self.as_keywords(ignore=(\"axis_forward\",\n"
+ " \"axis_up\",\n"
+ " \"global_scale\",\n"
+ " \"check_existing\",\n"
+ " \"filter_glob\",\n"
+ " \"use_scene_unit\",\n"
+ " \"use_mesh_modifiers\",\n"
+ " ))\n\n"
+ " scene = context.scene\n\n"
+ " # Take into account scene's unit scale, so that 1 inch in Blender gives 1 inch elsewhere! See T42000.\n"
+ " global_scale = self.global_scale\n"
+ " if scene.unit_settings.system != 'NONE' and self.use_scene_unit:\n"
+ " global_scale *= scene.unit_settings.scale_length\n\n"
+ " global_matrix = axis_conversion(to_forward=self.axis_forward,\n"
+ " to_up=self.axis_up,\n"
+ " ).to_4x4() * Matrix.Scale(global_scale, 4)\n\n"
+ " faces = itertools.chain.from_iterable(\n"
+ " blender_utils.faces_from_mesh(ob, global_matrix, self.use_mesh_modifiers)\n"
+ " for ob in context.selected_objects)\n\n"
+ " stl_utils.write_stl(faces=faces, **keywords)\n\n"
+ " return {'FINISHED'}\n\n\n"
+ "def menu_import(self, context):\n"
+ " self.layout.operator(ImportSTL.bl_idname, text=\"Stl (.stl)\")\n\n\n"
+ "def menu_export(self, context):\n"
+ " default_path = os.path.splitext(bpy.data.filepath)[0] + \".stl\"\n"
+ " self.layout.operator(ExportSTL.bl_idname, text=\"Stl (.stl)\")\n\n\n"
+ "def register():\n"
+ " bpy.utils.register_module(__name__)\n\n"
+ " bpy.types.INFO_MT_file_import.append(menu_import)\n"
+ " bpy.types.INFO_MT_file_export.append(menu_export)\n\n\n"
+ "def unregister():\n"
+ " bpy.utils.unregister_module(__name__)\n\n"
+ " bpy.types.INFO_MT_file_import.remove(menu_import)\n"
+ " bpy.types.INFO_MT_file_export.remove(menu_export)\n\n\n"
+ "if __name__ == \"__main__\":\n"
+ " register()\n";
final String subst = "${1}10.0,";
final Pattern pattern = Pattern.compile(regex, Pattern.DOTALL);
final Matcher matcher = pattern.matcher(string);
// The substituted value will be contained in the result variable
final String result = matcher.replaceFirst(subst);
System.out.println("Substitution result: " + result);
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html