Added `syntax_highlighting/` folder and instructions for vim and neatvi.

[vvhitespace] / stdlib_tests / 4002_isdigit.pvvs

SSSSSTSTTTTN    | PUSH 47 (ASCII '/')
NSTTSSSSTN      | JSR > 100001 (isdigit)
NSTTTTTSTN      | JSR > 111101 (debug:printsignednumber)

SSSSSTTSSSSN    | PUSH 48 (ASCII '0')
NSTTSSSSTN      | JSR > 100001 (isdigit)
NSTTTTTSTN      | JSR > 111101 (debug:printsignednumber)

SSSSSTTTSSTN    | PUSH 57 (ASCII '9')
NSTTSSSSTN      | JSR > 100001 (isdigit)
NSTTTTTSTN      | JSR > 111101 (debug:printsignednumber)

SSSSSTTTSTSN    | PUSH 58 (ASCII ':')
NSTTSSSSTN      | JSR > 100001 (isdigit)
NSTTTTTSTN      | JSR > 111101 (debug:printsignednumber)

NNN             | DIE

#include <debug.pvvs>
#include <string.pvvs>