#!/bin/csh -f

if ($#argv != 1) then
 echo a quick and dirty shell script to help you navigate thru the source code,
 echo give as an arg the example number, name or unique key word you are interested in
 exit
endif

set readme = './'$0
set readme = $readme:h
egrep 'Example [0-9,A-Z]' $readme/README | egrep -i $1 | uniq > /tmp/$$

set lines = `wc /tmp/$$`
if ($lines[1] < 1) then
  echo no matches - try another example number, name or unique key word
  /bin/rm -f /tmp/$$
  exit
endif

@ occur = 0
while ($occur < $lines[1]) 
  set i = `head -1 /tmp/$$`
  set page = `echo $i | awk '{print $NF}'`
  set example = `echo $i | sed 's/\ \ *[0-9]*$//'`
  set file = `echo $i | awk '{print $3}'`
  echo $example
  echo '	' page $page, see `find $readme -name $file -print`
  echo ' '
  egrep -v $page\$ < /tmp/$$ > /tmp/$$'.' ; /bin/mv -f /tmp/$$'.' /tmp/$$
  @ occur++
end
	 
if ($occur > 1) then
  echo lots of matches - try a unique example number, name or key word
endif

/bin/rm -f /tmp/$$