c# - Use RegEx or Macro etc. to process / generate text..Macro...Script etc -

i trying improve / automate repetitive programming task.

i have bunch of files (hundreds) field declarations this: (this 1 has 66 declarations alone)

string _id = string.empty; string _itemid = string.empty; string _upc = string.empty; int? _unitid; ...etc... 

i have generate code each line this: (first line of course)

/// <summary> /// allows modification default value /// </summary> /// <param name="id">blah blah</param> /// <returns>builder object allow fluent method chaining</returns> public itembuilder withid( string id ) {    this._id = id;    return this; } 

everything boiler plate , there 2 values parsed variables regex macro.

the type declaration such string, int? bool, datetime etc. 1 can plopped boilerplate code is.

next var name read such _id, _itemid, _upc etc. difference though manipulations need done.

1. _id becomes id , prefixed produce withid.
2. _id becomes id , plopped 2 spots.
3. _id plopped 1 spot.

each line follow pattern.

in c# writing snippet problem comes in getting each line generate.

/// <summary> /// allows modification default value /// </summary> /// <param name="$parmvarname$">used assign...to built with.</param> /// <returns>builder object allow fluent method chaining</returns> public $builderobject$ with$methodname$( $parmtype$ $parmvarname$ ) {   this._$parmvarname$ = $parmvarname$;   return this; } 

i thinking copy declarations (66 in example above) text editor , run "macro" against generating 66 methods can cut , paste code file.

so if there way in visual studio, edit plus plus, linqpad, etc. create template, process field declarations, , stuff template values each line interested in learning....

please understand i'm not asking homework [but won't stop :) ] educate me on topic / capability need learn about.

thanks

you can use following match:

^([^\s]+)\s+_([^\s;]+)?.* 

and extract/replace with:

public itembuilder with$2( $1 $2 )\n{\n\tthis._$2 = $2;\n\treturn this;\n} 

see demo