Re: new version of allout.el - whole file and ChangeLog entry

hi, all! attached is a new version of allout.el and a ChangeLog for a substantial new revision of allout, emacs' alternative (and much more extensive) outliner. i think it's ready to replace the distributed version. (i'm the original author of allout, and the maintainer of the gnu emacs version.) this version adds topic encryption, using GPG. it also includes several fixes and enhancements, described in the ChangeLog entry i've tested this version mostly in gnu emacs, but have tested (and adjusted) it enough to establish that it works in xemacs 21.4.17, including the new encryption capabilities. i'm providing the .el file instead of a patch against the version that comes with xemacs 21.4.7 because the version there is old, and the patch is substantially larger than the elisp source (5740 lines for the new source vs 6680 for the unified diff). i can provide the diff if you prefer, however. one important thing to note. the gnu emacs folk made some cosmetic but extensive stylistic changes, including particularly migrating the function name prefix from "outline-" to "allout-", and i adopted those changes. i'm hoping it won't be disruptive to adopt those conventions in the xemacs version, too. (i'd like to see allout continue to be available from in both true emacs, but want to do what i can to maintain only a single version...) another important thing - the source i'm sending is slightly different than the one i used to generate the patch i submitted to emacs-devel(a)gnu.org earlier today. i discovered an xemacs compatibility problem after submitting that version, which i fixed in the version i'm sending to you. i can make sure to revise the patch i submitted to the gnu list sooner rather than later, if you think that's important. please let me know whether or not i'm submitting this update the right way! below is the synopsis of just the new encryption features, from the ChangeLog entry. - new subsystem supporting easy gpg topic encryption/decryption. salient features: - both public- and symmetric-key modes are supported. - encryption being on a per-topic basis means you can intersperse encrypted and clear-text data in a single file to your heart's content. - user-provided symmetric-key hints, with consistency verification to help user avoid confusion - time-limited key reuse, a la (and using) mailcrypt's mc-passwd-timeout - write-file-hook and auto-save-hook activities to support auto encryption of pending topics on save; provision to skip currently-edited topic to avoid editing disturbance topic encryption functionality depends on both mailcrypt and crypt++ packages. (non-encryption allout functionality is not disrupted if either mailcrypt or crypt++ are absent.) `allout-toggle-current-subtree-encryption' is the central routine. there are a five new encryption customization variables: - allout-topic-encryption-bullet - allout-default-encryption-scheme - allout-key-verifier-handling - allout-key-hint-handling - allout-encrypt-unencrypted-on-saves topic encryption is included in mouse menu docstring for `allout-toggle-current-subtree-encryption' and customization variables provide detailed description. ken manheimer ken.manheimer(a)gmail.com