| #!/usr/bin/perl |
| ## Licensed under the terms of http://www.apache.org/licenses/LICENSE-2.0 |
| |
| # Extract tokens (will need more editting) |
| |
| $/ = undef ; |
| $_ = <> ; |
| s!//.*!!g ; |
| |
| # Not greedy to find end brace |
| @t = m/TOKEN\s*(?:\[IGNORE_CASE\])?\s*:\s*\n\{(.*?)\n\}/sg ; |
| |
| #{\s*([^{}]*)}/sg ; |
| |
| # Fixups: |
| |
| for $t (@t) |
| { |
| $t =~ s/\r//g ; |
| |
| #print "\nTEXT:\nT:",$t,":\n" ; |
| |
| |
| @s = split(/\n\|/,$t) ; |
| for $s (@s) |
| { |
| ($name, $rule) = split(/:/,$s,2) ; |
| |
| ## Leading < and excess whitespace |
| $name =~ s/^\s*\<\s*// ; |
| $name =~ s/\s+$// ; |
| |
| ## Trailing > and excess whitespace |
| $rule =~ s/^\s+// ; |
| $rule =~ s/\s*\>\s*$// ; |
| |
| $rule =~ s/\|\s*\n\s*/\|/sg ; |
| $rule =~ s/\n\s*\|/\|/sg ; |
| |
| ## print "NAME: /",$name , "/\n" ; |
| ## print "--> ", $rule , "\n" ; |
| |
| $spc = ' ' x (10-length($name)) ; |
| |
| print "<",$name,">", $spc, " ::= ",$rule,"\n" ; |
| } |
| } |
