It looks like people have reimplemented capitalize in some libs: D:\dev\lib\D\boxen\src\xf\utils\CT.d:25:pragma(ctfe) char[] capitalize(char[] name) { D:\dev\lib\D\boxen\src\xf\xpose2\MiniD.d:51:pragma(ctfe) private char[] capitalizeFirst(char[] str) { D:\dev\lib\D\boxen\src\xf\xpose2\MiniD.d:62: return "set" ~ capitalizeFirst(name); D:\dev\lib\D\boxen\src\xf\xpose2\Utils.d:25:pragma(ctfe) char[] capitalize(char[] name) {
And I found a match here: D:\dev\lib\D\enticesource\plugins.d:2317: s = std.string.capitalize(s); I've found no match for capwords though.