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mal/awk/step0_repl.awk
2015-08-26 10:13:25 +09:00

36 lines
307 B
Awk

function READ(str)
{
return str
}
function EVAL(ast)
{
return ast
}
function PRINT(expr)
{
return expr
}
function rep(str)
{
return PRINT(EVAL(READ(str)))
}
function main(str)
{
while (1) {
printf("user> ")
if (getline str <= 0) {
break
}
print rep(str)
}
}
BEGIN {
main()
exit(0)
}