2024-10-30  Keith Marshall  <address@hidden>
 
         Update automated preparation for distribution.
 
         * Makefile.in (mandist): Include all generated manual pages.
         [mandist] (dist_transform): Adjust experssion to accommodate all.
         (docdist): Include all generated PDF manual pages.
         (gpgsum): Avoid overwrite prompt.
 
 2024-10-30  Keith Marshall  <address@hidden>
 
         Set version number for new release.
 
         * configure.ac (AC_INIT): Increment argument corresponding to...
         (PACKAGE_VERSION): ...this configuration variable, to 24.10.
 
 2024-10-30  Keith Marshall  <address@hidden>
 
         Add groff_sanitize.7 manual page source file.
 
         * man/groff_sanitize.7.man: New file.
         * Makefile.in (manpages): Add groff_sanitize.7 to build goals.
 
 2024-10-24  Keith Marshall  <address@hidden>
 
         Support substitutions for dual-token escape sequences.
 
         * tmac/sanitize.tmac (sanitize): Add internal call to...
         (sanitize:esc-auto.assign): ...this new auxiliary helper macro;
         it dynamically binds a handler for any input escape sequence in...
         (sanitize:esc-char.subst): ...this new filter identification string.
         (sanitize:esc-auto.assign.init, sanitize:esc-auto.assign.scan)
         (sanitize:esc-auto.assign.handler, sanitize:esc-auto.assign.void)
         (sanitize:diag): New helper macros; they facilitate implementation...
         (sanitize:esc-auto.assign): ...of this.
 
 2024-10-18  Keith Marshall  <address@hidden>
 
         Strip delimited argument escape sequences from sanitized text.
 
         * tmac/sanitize.tmac (sanitize:esc-s, sanitize:esc-v): New macros;
         each of these is implemented, internally, as an alias for...
         (sanitize:esc-delimited): ...this new generic handler macro.
         (sanitize:scan.delimiter.push, sanitize:scan.delimiter.pop): New
         helper macros; they are used by...
         (sanitize:esc-delimited): ...this, to save, and subsequently restore,
         effective escape sequence delimiter context, in...
         (sanitize:scan.delimiter.stack): ...this new string.
         (sanitize:esc-generic): Refactored; it now uses...
         (sanitize:skip-handler): ...this new string; it defines a template,
         used for redirection of control to one, or other of...
         (sanitize:skip-(, sanitize:skip-[): ...these, as appropriate.
 
 2024-10-10  Keith Marshall  <address@hidden>
 
         Improve handling of groff special characters in sanitized text.
 
         * tmac/sanitize.tmac (sanitize:esc-(hy): Redefine as a string, with
         value equivalent to a single ASCII hyphen-minus; now used by...
         (sanitize:esc(??.subst): ...this new macro; it handles substitutions
         for two-character escapes of the form "\(??", on behalf of...
         (sanitize:esc-(): ...this; add a sanity check, to ensure that the
         input text residual comprises no fewer than two characters, as needed
         to complete the "\(??" escape sequence; otherwise simplify, delegating
         handling of the entire substitution operation to...
         (sanitize:esc-(??.subst): ...this; it is also used by...
         (sanitize:esc-[): ...this new macro; it also performs two-character
         escape substitution, for the alternative groff "\[??]" form, such that
         escapes of both "\(??" and "\[??]" forms are substituted congruently.
         (sanitize:esc-(mi, sanitize:esc-(en): New strings; they define
         substitutions for "\(mi" and "\(en", respectively; both are aliases...
         (sanitize:esc-(hy): ...for this; thus all three result in substitution
         of a single ASCII hyphen-minus glyph.
         (sanitize:esc-(em): New string; it defines a substitution for the
         "\(em" escape, such that it is replaced by a conjoined pair of ASCII
         hyphen-minus glyphs.
 
 2024-10-07  Keith Marshall  <address@hidden>
 
         Improve filtering of groff special tokens from sanitized text.
 
         * tmac/sanitize.tmac (sanitize:scan.reject): New string; with
         default value of "'\&\%\:'", it specifies a list of groff special
         tokens, enclosed within a matching pair of arbitrary delimiting
         tokens, ("'" in this default case), which are to be filtered out
         of sanitized text, and thus discarded from this context.
         (sanitize:scan.subst): New string; with default value comprising
         the space-separated list of quoted macro arguments, "'\-'-'",
         and "'\ \~' '", this specifies a collection of special token
         substitution groups, arbitrarily delimited by the "'" token.
         (sanitize:scan.filter): New macro; called by...
         (sanitize): ...this, it interprets, and applies the effect of...
         (sanitize:scan.reject, sanitize:scan.subst): ...these filters.
 
 2024-10-03  Keith Marshall  <address@hidden>
 
         Improve escape sequence detection when sanitizing text.
 
         * tmac/sanitize.tmac (sanitize:scan.execute): Incorporate a test
         for groff's escape character; substitute string "^[".
         (sanitize): Test for "^[", rather than groff's escape character,
         to identify the start of any potential escape sequence.
 
 2024-09-30  Keith Marshall  <address@hidden>
 
         Create obfuscation hook for manpage author's e-mail address.
 
         * Makefile.in (AUTHOR_MT_ADDRESS): New macro; define it with its
         default value representing the author's true e-mail address.
         (manpage_update_script) [@AUTHOR_MT_ADDRESS@]: Expand it.
 
         * man/pdfroff.1.man man/pdfroff.7.man man/groff_opmode.7.man
         * man/groff_omit.7.man man/groff_toc.7.man (MT): Substitute...
         (@AUTHOR_MT_ADDRESS@): ...this, in place of author's actual e-mail
         address, as appropriate.
 
 2024-08-18  Keith Marshall  <address@hidden>
 
         Update macro files copyright notices.
 
         * tmac/anpdf.tmac tmac/omit.tmac tmac/opmode.tmac
         * tmac/pdfmark.tmac tmac/pdfroff.tmac tmac/sanitize.tmac
         * tmac/spdf-toc.tmac tmac/spdf.tmac tmac/strcase.tmac tmac/toc.tmac:
         Make all copyright notices consistent; identify all as originating
         from within the groff-pdfmark project.