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#!/usr/bin/env runawk
#use "tokenre.awk"
# This demo splits input line into tokens according to regexp that
# defines lexem of hypotetic programming language.
# Input files for this demo: examples/demo_tokenre2.in*
BEGIN {
TRE = "if|then|else|while|do|end"
TRE = TRE "|" "[0-9]+([.][0-9]+)?"
TRE = TRE "|" ":=|=|<|>|!=|[+]|-|[*]|/|[.][.]"
TRE = TRE "|" "[()]"
TRE = TRE "|" "[[:alpha:]_][[:alnum:]_]*"
TRE = TRE "|" "'[^']*'"
}
{
for (i=1; i <= NF; ++i){
print $i
}
print "<NL>"
}
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