How to merge edges in blender

How to merge edges in blender or there is any way to automate this task with one click as we merge vertexes with single command.

I know we can subdivide longer edge and make extra vertex and then positioning on same vertex with other shape's vertex and then by selecting both vertexes we can merge them into one. This take much time to do this as I have to import complex shapes as SVG format.

I'm looking for simple and fast solution to do this task with single click (If I select all the edges in edit mode and then merge them into one single edge where they connected each other. Hope this make sense.