SPITBOL is an enhanced version of the SNOBOL language.
From Wikipedia:
SNOBOL (StriNg Oriented and symBOlic Language) is a series of computer programming languages developed between 1962 and 1967 at AT&T Bell Laboratories by David J. Farber, Ralph E. Griswold and Ivan P. Polonsky, culminating in SNOBOL4.
TkS*LIDE is a Tcl/Tk based IDE for SPITBOL (along with SNOBOL4). Binaries for SNOBOL4 and SPITBOL are included with the IDE, along with a tutorial and sample programs.
From Wikipedia:
SNOBOL (StriNg Oriented and symBOlic Language) is a series of computer programming languages developed between 1962 and 1967 at AT&T Bell Laboratories by David J. Farber, Ralph E. Griswold and Ivan P. Polonsky, culminating in SNOBOL4.
https://en.wikipedia.org/wiki/SNOBOL
TkS*LIDE is a Tcl/Tk based IDE for SPITBOL (along with SNOBOL4). Binaries for SNOBOL4 and SPITBOL are included with the IDE, along with a tutorial and sample programs.
http://rms.republika.pl/slide.html
SNOBOL is also distinguished by being described in Guy Steele & Richard Gabriel: 50 in 50 speech as one of the three languages worth knowing:
https://vimeo.com/25958308