Charm is a computer programming language devised in the early 1990s with similarities to the RTL/2, Pascal and C languages in addition to containing some unique features of its own. The Charm language is defined by a context-free grammar amenable to being processed by recursive descent parser as described in seminal books on compiler design.
A set of Charm tools including a compiler, assembler and linker was made available for Acorn's RISC OS platform. Charm reworked for RISC OS platforms has subsequently been reviewed in Archive magazine.
Charm is further described in the e-book Programming in Charm on the Raspberry Pi.