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match-echotc

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  1. #!/usr/local/bin/zsh
  2. #
  4. # match-echotc
  5. # sets the array "reply" with the termcap entries given in $TERMCAP.
  6. #
  7. # This sed script first removes the first termcap entry because it is
  8. # the name of the termcap entry. Then, in the loop 'start', it makes a
  9. # copy of the pattern space into the hold space, removes the first entry
  10. # from the hold space, leaves just the two-letter entry in the pattern space
  11. # (not its value), prints it if it isn't made up of just spaces and tabs,
  12. # replaces the pattern space with the slightly shortened hold space,
  13. # resets the replacement-checking by a dummy jump, then reads in the
  14. # next line of input if these are no colons left in the pattern space.
  15. # regardless, it jumps back to the 'start' label. When EOF is reached,
  16. # ends.
  18. local excl=!
  20. reply=( $(echo $TERMCAP | sed -n 's/[^:]*://
  21. :start
  22. h;s/^[^:]*://;x;s/^\([^=#:]*\).*$/\1/;/^[ ]*$/'$excl'p;g;t reset
  23. :reset
  24. s/:/:/;t start
  25. n;b start') )