Rawscript is an extension for the RAW text format, the aim is to cut down on repetitions inside of the raws and to facilitate easier editing.
It is more complex than standard raw editing, but I hope you will find it well worth it, the best comparison is to the creature variation system currently present.

Rawscript reads .raw files and outputs .txt files that can be used by DF itself.

Features

C-style Macros
Mass editing
Import

Commands

[RAW_IMPORT]
[RAW_NEW]
[RAW_INSERT]
[RAW_REPLACE]
[RAW_ADD]
[RAW_MULT]
[RAW_GRAV]
[RAW_REMOVE]
[RAW_NEW_TAG]
[RAW_COPY_TAG]
[RAW_INSERT_TAG]
[RAW_INSERT_COPY_TAG]
[RAW_REPLACE_TAG]
[RAW_REPLACE_COPY_TAG]
[RAW_REMOVE_TAG]

Be aware, Rawscript does not deal with SELECT_CASTE and other such constructions, it only recognizes the relations between tags.
The only thing it does is text editing.

material_template example : https://dffd.bay12games.com/file.php?id=3589
.raw is the input, .txt is the output.

Example :
Prototype, macro and RAW_MULT :
#define [SIZE_MULTIPLY_MACRO:size]{[RAW_MULT:SIZE:size:TWO_HANDED:size:MINIMUM_SIZE:size]}
#define [EDGED_MULTIPLY_MACRO:size:depth:power]{[RAW_MULT:ATTACK|EDGE:size|depth||||power]}

[PROTO ITEM_WEAPON:SWORD_PROTOTYPE]
[SIZE:900]
[SKILL:SWORD]
[TWO_HANDED:77500]
[MINIMUM_SIZE:62500]
[ATTACK:EDGE:100000:8000:slash:slashes:NO_SUB:1250]
[ATTACK:EDGE:50:4000:stab:stabs:NO_SUB:1000]
[ATTACK:BLUNT:100000:8000:slap:slaps:flat:1250]
[ATTACK:BLUNT:100:1000:strike:strikes:pommel:1000]

[ITEM_WEAPON:SWORD_GREAT]
[NAME:great sword:great swords]
[MATERIAL_SIZE:7]
[RAW_IMPORT:ITEM_WEAPON|SWORD_PROTOTYPE]
[SIZE_MULTIPLY_MACRO:1.25]
[EDGED_MULTIPLY_MACRO:2:1.5:2]

[ITEM_WEAPON:SWORD_HUGE]
[NAME:huge sword:huge swords]
[MATERIAL_SIZE:9]
[RAW_IMPORT:ITEM_WEAPON|SWORD_PROTOTYPE]
[SIZE_MULTIPLY_MACRO:1.5]
[EDGED_MULTIPLY_MACRO:3:2:2.5]

[ITEM_WEAPON:AXE_HUGE]
[RAW_IMPORT:ITEM_WEAPON|SWORD_HUGE]
[RAW_REPLACE_TAG:NAME:NAME|huge axe|huge axes]
[RAW_REPLACE:ATTACK:slash:hack:ATTACK:slashes:hacks]
[RAW_REPLACE:SKILL:SWORD:AXE]