Regular Expressions 101

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  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression

/
/
s

Test String

Substitution

Processing...

Code Generator

Generated Code

#include <MsgBoxConstants.au3> ; to declare the Constants of MsgBox Local $sRegex = "(?s)(ExportSTL.+?global_scale = .+?default=)(.+?)," Local $sString = "# ##### BEGIN GPL LICENSE BLOCK #####" & @CRLF & _ "#" & @CRLF & _ "# This program is free software; you can redistribute it and/or" & @CRLF & _ "# modify it under the terms of the GNU General Public License" & @CRLF & _ "# as published by the Free Software Foundation; either version 2" & @CRLF & _ "# of the License, or (at your option) any later version." & @CRLF & _ "#" & @CRLF & _ "# This program is distributed in the hope that it will be useful," & @CRLF & _ "# but WITHOUT ANY WARRANTY; without even the implied warranty of" & @CRLF & _ "# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the" & @CRLF & _ "# GNU General Public License for more details." & @CRLF & _ "#" & @CRLF & _ "# You should have received a copy of the GNU General Public License" & @CRLF & _ "# along with this program; if not, write to the Free Software Foundation," & @CRLF & _ "# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA." & @CRLF & _ "#" & @CRLF & _ "# ##### END GPL LICENSE BLOCK #####" & @CRLF & _ "" & @CRLF & _ "# <pep8-80 compliant>" & @CRLF & _ "" & @CRLF & _ "bl_info = {" & @CRLF & _ " "name": "STL format"," & @CRLF & _ " "author": "Guillaume Bouchard (Guillaum)"," & @CRLF & _ " "version": (1, 1, 1)," & @CRLF & _ " "blender": (2, 74, 0)," & @CRLF & _ " "location": "File > Import-Export > Stl"," & @CRLF & _ " "description": "Import-Export STL files"," & @CRLF & _ " "warning": ""," & @CRLF & _ " "wiki_url": "http://wiki.blender.org/index.php/Extensions:2.6/Py/"" & @CRLF & _ " "Scripts/Import-Export/STL"," & @CRLF & _ " "support": 'OFFICIAL'," & @CRLF & _ " "category": "Import-Export"," & @CRLF & _ "}" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "# @todo write the wiki page" & @CRLF & _ "" & @CRLF & _ """"" & @CRLF & _ "Import-Export STL files (binary or ascii)" & @CRLF & _ "" & @CRLF & _ "- Import automatically remove the doubles." & @CRLF & _ "- Export can export with/without modifiers applied" & @CRLF & _ "" & @CRLF & _ "Issues:" & @CRLF & _ "" & @CRLF & _ "Import:" & @CRLF & _ " - Does not handle endien" & @CRLF & _ """"" & @CRLF & _ "" & @CRLF & _ "if "bpy" in locals():" & @CRLF & _ " import importlib" & @CRLF & _ " if "stl_utils" in locals():" & @CRLF & _ " importlib.reload(stl_utils)" & @CRLF & _ " if "blender_utils" in locals():" & @CRLF & _ " importlib.reload(blender_utils)" & @CRLF & _ "" & @CRLF & _ "import os" & @CRLF & _ "" & @CRLF & _ "import bpy" & @CRLF & _ "from bpy.props import (StringProperty," & @CRLF & _ " BoolProperty," & @CRLF & _ " CollectionProperty," & @CRLF & _ " EnumProperty," & @CRLF & _ " FloatProperty," & @CRLF & _ " )" & @CRLF & _ "from bpy_extras.io_utils import (ImportHelper," & @CRLF & _ " ExportHelper," & @CRLF & _ " orientation_helper_factory," & @CRLF & _ " axis_conversion," & @CRLF & _ " )" & @CRLF & _ "from bpy.types import Operator, OperatorFileListElement" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "IOSTLOrientationHelper = orientation_helper_factory("IOSTLOrientationHelper", axis_forward='Y', axis_up='Z')" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "class ImportSTL(Operator, ImportHelper, IOSTLOrientationHelper):" & @CRLF & _ " """Load STL triangle mesh data"""" & @CRLF & _ " bl_idname = "import_mesh.stl"" & @CRLF & _ " bl_label = "Import STL"" & @CRLF & _ " bl_options = {'UNDO'}" & @CRLF & _ "" & @CRLF & _ " filename_ext = ".stl"" & @CRLF & _ "" & @CRLF & _ " filter_glob = StringProperty(" & @CRLF & _ " default="*.stl"," & @CRLF & _ " options={'HIDDEN'}," & @CRLF & _ " )" & @CRLF & _ " files = CollectionProperty(" & @CRLF & _ " name="File Path"," & @CRLF & _ " type=OperatorFileListElement," & @CRLF & _ " )" & @CRLF & _ " directory = StringProperty(" & @CRLF & _ " subtype='DIR_PATH'," & @CRLF & _ " )" & @CRLF & _ "" & @CRLF & _ " global_scale = FloatProperty(" & @CRLF & _ " name="Scale"," & @CRLF & _ " soft_min=0.001, soft_max=1000.0," & @CRLF & _ " min=1e-6, max=1e6," & @CRLF & _ " default=1.0," & @CRLF & _ " )" & @CRLF & _ "" & @CRLF & _ " use_scene_unit = BoolProperty(" & @CRLF & _ " name="Scene Unit"," & @CRLF & _ " description="Apply current scene's unit (as defined by unit scale) to imported data"," & @CRLF & _ " default=False," & @CRLF & _ " )" & @CRLF & _ "" & @CRLF & _ " def execute(self, context):" & @CRLF & _ " from . import stl_utils" & @CRLF & _ " from . import blender_utils" & @CRLF & _ " from mathutils import Matrix" & @CRLF & _ "" & @CRLF & _ " paths = [os.path.join(self.directory, name.name)" & @CRLF & _ " for name in self.files]" & @CRLF & _ "" & @CRLF & _ " scene = context.scene" & @CRLF & _ "" & @CRLF & _ " # Take into account scene's unit scale, so that 1 inch in Blender gives 1 inch elsewhere! See T42000." & @CRLF & _ " global_scale = self.global_scale" & @CRLF & _ " if scene.unit_settings.system != 'NONE' and self.use_scene_unit:" & @CRLF & _ " global_scale /= scene.unit_settings.scale_length" & @CRLF & _ "" & @CRLF & _ " global_matrix = axis_conversion(from_forward=self.axis_forward," & @CRLF & _ " from_up=self.axis_up," & @CRLF & _ " ).to_4x4() * Matrix.Scale(global_scale, 4)" & @CRLF & _ "" & @CRLF & _ " if not paths:" & @CRLF & _ " paths.append(self.filepath)" & @CRLF & _ "" & @CRLF & _ " if bpy.ops.object.mode_set.poll():" & @CRLF & _ " bpy.ops.object.mode_set(mode='OBJECT')" & @CRLF & _ "" & @CRLF & _ " if bpy.ops.object.select_all.poll():" & @CRLF & _ " bpy.ops.object.select_all(action='DESELECT')" & @CRLF & _ "" & @CRLF & _ " for path in paths:" & @CRLF & _ " objName = bpy.path.display_name(os.path.basename(path))" & @CRLF & _ " tris, pts = stl_utils.read_stl(path)" & @CRLF & _ " blender_utils.create_and_link_mesh(objName, tris, pts, global_matrix)" & @CRLF & _ "" & @CRLF & _ " return {'FINISHED'}" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "class ExportSTL(Operator, ExportHelper, IOSTLOrientationHelper):" & @CRLF & _ " """Save STL triangle mesh data from the active object"""" & @CRLF & _ " bl_idname = "export_mesh.stl"" & @CRLF & _ " bl_label = "Export STL"" & @CRLF & _ "" & @CRLF & _ " filename_ext = ".stl"" & @CRLF & _ " filter_glob = StringProperty(default="*.stl", options={'HIDDEN'})" & @CRLF & _ "" & @CRLF & _ " global_scale = FloatProperty(" & @CRLF & _ " name="Scale"," & @CRLF & _ " min=0.01, max=1000.0," & @CRLF & _ " default=1.0," & @CRLF & _ " )" & @CRLF & _ "" & @CRLF & _ " use_scene_unit = BoolProperty(" & @CRLF & _ " name="Scene Unit"," & @CRLF & _ " description="Apply current scene's unit (as defined by unit scale) to exported data"," & @CRLF & _ " default=False," & @CRLF & _ " )" & @CRLF & _ " ascii = BoolProperty(" & @CRLF & _ " name="Ascii"," & @CRLF & _ " description="Save the file in ASCII file format"," & @CRLF & _ " default=False," & @CRLF & _ " )" & @CRLF & _ " use_mesh_modifiers = BoolProperty(" & @CRLF & _ " name="Apply Modifiers"," & @CRLF & _ " description="Apply the modifiers before saving"," & @CRLF & _ " default=False," & @CRLF & _ " )" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ " def execute(self, context):" & @CRLF & _ " from . import stl_utils" & @CRLF & _ " from . import blender_utils" & @CRLF & _ " import itertools" & @CRLF & _ " from mathutils import Matrix" & @CRLF & _ " keywords = self.as_keywords(ignore=("axis_forward"," & @CRLF & _ " "axis_up"," & @CRLF & _ " "global_scale"," & @CRLF & _ " "check_existing"," & @CRLF & _ " "filter_glob"," & @CRLF & _ " "use_scene_unit"," & @CRLF & _ " "use_mesh_modifiers"," & @CRLF & _ " ))" & @CRLF & _ "" & @CRLF & _ " scene = context.scene" & @CRLF & _ "" & @CRLF & _ " # Take into account scene's unit scale, so that 1 inch in Blender gives 1 inch elsewhere! See T42000." & @CRLF & _ " global_scale = self.global_scale" & @CRLF & _ " if scene.unit_settings.system != 'NONE' and self.use_scene_unit:" & @CRLF & _ " global_scale *= scene.unit_settings.scale_length" & @CRLF & _ "" & @CRLF & _ " global_matrix = axis_conversion(to_forward=self.axis_forward," & @CRLF & _ " to_up=self.axis_up," & @CRLF & _ " ).to_4x4() * Matrix.Scale(global_scale, 4)" & @CRLF & _ "" & @CRLF & _ " faces = itertools.chain.from_iterable(" & @CRLF & _ " blender_utils.faces_from_mesh(ob, global_matrix, self.use_mesh_modifiers)" & @CRLF & _ " for ob in context.selected_objects)" & @CRLF & _ "" & @CRLF & _ " stl_utils.write_stl(faces=faces, **keywords)" & @CRLF & _ "" & @CRLF & _ " return {'FINISHED'}" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "def menu_import(self, context):" & @CRLF & _ " self.layout.operator(ImportSTL.bl_idname, text="Stl (.stl)")" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "def menu_export(self, context):" & @CRLF & _ " default_path = os.path.splitext(bpy.data.filepath)[0] + ".stl"" & @CRLF & _ " self.layout.operator(ExportSTL.bl_idname, text="Stl (.stl)")" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "def register():" & @CRLF & _ " bpy.utils.register_module(__name__)" & @CRLF & _ "" & @CRLF & _ " bpy.types.INFO_MT_file_import.append(menu_import)" & @CRLF & _ " bpy.types.INFO_MT_file_export.append(menu_export)" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "def unregister():" & @CRLF & _ " bpy.utils.unregister_module(__name__)" & @CRLF & _ "" & @CRLF & _ " bpy.types.INFO_MT_file_import.remove(menu_import)" & @CRLF & _ " bpy.types.INFO_MT_file_export.remove(menu_export)" & @CRLF & _ "" & @CRLF & _ "" & @CRLF & _ "if __name__ == "__main__":" & @CRLF & _ " register()" & @CRLF & _ "" Local $sSubst = "${1}10.0," Local $sResult = StringRegExpReplace($sString, $sRegex, $sSubst) MsgBox($MB_SYSTEMMODAL, "Result", $sResult)

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 AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm