TRIE SPECIALIZATION ALLOWING STORAGE OF VALUE KEYED BY PATTERNS AND RETRIEVAL BY TOKENS

Methods, systems, and computer-readable media for efficiently and flexibly invoking programs or subroutines specified by command terminal input strings using a trie data structure include: receiving a command string; dividing the command string into one or more tokens, wherein the one or more tokens are delimited by whitespace within the command string; identifying a node-path within a trie data structure corresponding to the one or more tokens; extracting a program stored in a final node in the node-path; and executing the program.