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authorDr. Clea F. Rees <cfrees@imapmail.org>2008-12-28 23:55:42 +0000
committerDr. Clea F. Rees <cfrees@imapmail.org>2008-12-28 23:55:42 +0000
commit0ea692dfc516c549c696115ab6e0672659fde2dd (patch)
treeb4010874865e73b344cab4ebdc96fe0720c673a9 /Master/texmf-dist/doc/fonts/accfonts/CHANGES
parentd48f7c90859ad4c4f2d617a2c7f8456c5b1b5b8e (diff)
accfonts update 2008/12/28
git-svn-id: svn://tug.org/texlive/trunk@11742 c570f23f-e606-0410-a88d-b1316a301751
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-Changes to vpl2vpl between first (unnumbered) release and release 0.1
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-When I first wrote vpl2vpl I was under the impression that the vpl
-file output by afm2tfm could never contain accented character
-definitions. The first (unnumbered) release of vpl2vpl thus did not
-implement the -b option allowed for mkt1font (to block the use of
-predefined accented characters). I have since become aware that in
-the rather rare case of an afm file containing composite character
-information, afm2tfm uses that information to build definitions of
-accented characters; I have therefore introduced a -b option in
-version 0.1.
-
-There were two bugs in the coding dealing with the -s option in the
-first version of vpl2vpl. First, the shrink-factor specified by the
-user was incorrectly applied to the underdot accent as well as to
-dropped superscript accents. Second, the shrink-factor was not
-correctly scaled in terms of the value of DESIGNUNITS (this chiefly
-affected Computer Modern fonts). Both of these have been fixed in
-version 0.1.
-
-Another bug affected those characters (quotesingle, quotedbl,
-backslash, underscore, braceleft, bar and braceright) which
-dvips.enc places in the lower half of the character set, but which
-vpl2vpl removes to make room for the normal TeX inhabitants of their
-"slots"; in the first version of the program it was not possible to
-include these characters in the output font. This has also been
-fixed in version 0.1.
-
-The handling of LIGTABLE information controlling kerning etc. has
-been improved, to eliminate repeated instructions and "orphaned"
-instructions with no LABEL.
-
-In the first version of vpl2vpl I deliberately did not allow for
-double superscript accents on tall characters such as capital
-letters, on the grounds that this would be bad typographic practice.
-A specific request for one such character has led me to modify
-version 0.1 of the program to make the creation of such characters
-possible, but I would still argue against their use.
-
-Some minor improvements have been made to the code in various areas,
-including checking for inappropriate input, calculation of italic
-correction for characters with superscript accents, and placing of
-dropped superscript accents. (However, it is likely that such
-accents will still sometimes require manual intervention.)
-
-
-Changes to mkt1font between first (unnumbered) release and release 0.1
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-In the first release of mkt1font, kerning information for predefined
-accented characters was taken from the input font, even if the -b
-option had been specified to force the redefinition of such
-characters. This has been fixed in version 0.1: if the -b option is
-used, kerns for characters such as "eacute" are generalised from the
-kerns for "e" in just the same way as happens for "emacron" etc.
-
-Similarly, predefined accented characters eliminated by the -b
-option used to retain "ghost" entries among the unencoded characters
-in the afm file. This too has been fixed in version 0.1.
-
-As of version 0.1, any composite character definitions contained in
-the afm file of the input font are eliminated from the output font,
-since they will almost certainly be incomplete, and (if the user has
-specified -b) will probably be wrong as well.
-
-Version 0.1 can now properly process input fonts using MS-DOS file
-format (with newline represented by CR/LF). It can also process
-fonts in which the character "|" is used in the names of the
-frequently used "noaccess def" and "noaccess put" definitions
-(previously this fell foul of Perl's regular expression handler).
-
-As with vpl2vpl, I have modified version 0.1 of mkt1font to permit
-the creation of tall characters bearing double superscript accents,
-though I do not recommend the use of such characters.
-
-The "FontBBox" entries in the afm and pfb files now reflect any
-increase in the maximum height or depth of characters in the output
-font.
-
-Various other minor improvements have been made to the code,
-including the placing of dropped superscript accents. (As with
-vpl2vpl, however, it is likely that such accents will still
-sometimes require manual intervention.)
-
-
-Changes to vpl2vpl and mkt1font between release 0.1 and release 0.2
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-A. Changes common to both programs
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-I have implemented the candrabindu ("moon-dot") accent sometimes
-used in Indian-language material. This is achieved by overprinting a
-breve with a dotaccent; a new command-line option (-c) has been
-introduced to allow for font-specific adjustments in the placing of
-the dotaccent.
-
-The user's command-line is now stored as a comment at the head of
-the output file(s).
-
-The constraint on the ordering of definitions in a definition file
-has been removed: it is no longer necessary to ensure that a
-character is defined before it is used.
-
-Digraphs are now implemented: if the character specified as the
-"accent" in a definition is not in fact a valid accent character,
-the definition is interpreted as a request for a digraph formed from
-the "character" followed by the "accent".
-
-A bug which placed superscript accents incorrectly over tall
-characters already bearing "under" accents has been fixed.
-
-The vertical positioning of "under" accents has been adjusted: they
-are now placed slightly lower than previously.
-
-
-B. Changes to vpl2vpl
-~~~~~~~~~~~~~~~~~~~~~
-
-Fixed a bug which resulted in some accents in small caps fonts being
-positioned at the wrong height.
-
-Fixed a bug which resulted in small amounts of LIGTABLE information
-being lost.
-
-
-C. Changes to mkt1font
-~~~~~~~~~~~~~~~~~~~~~~
-
-The internal organisation of the program has been cleaned up in a
-number of respects. In particular, various subroutines are now
-called with the appropriate formal parameters, rather than relying
-on the existence of equivalent global variables; the fetching and
-storing of character metric information is tidier and more
-efficient; and kerning information is dealt with in the course of
-the main program loop, rather than in a private (double) loop
-afterwards.
-
-The -s option allowing "under" accents to be shrunk by a specified
-factor, which was previously available only in vpl2vpl, has now been
-implemented in mkt1font also.
-
-The output afm file previously sometimes contained spurious entries
-for unencoded characters that duplicated items in the list of
-encoded characters. This has been fixed.
-
-Despite the fix introduced in version 0.1, some predefined kerning
-information continued to find its way into the afm file even when
-the -b option was specified to block the use of predefined accented
-characters. A new, improved fix is now in place to prevent this. An
-error in a regular expression which generated some undesirable kerns
-has also been corrected.
-
-The "FontBBox" entries in the afm and pfb files now reflect any
-increase in the maximum width of characters in the output font, as
-well as increases in their maximum height or depth.
-
-Fixed a bug causing the underbar accent to be too long.
-
-Fixed a bug causing "under" accents to be assigned the wrong depth:
-this could result in the bottom of the accent failing to print
-properly.
-
-
-Changes to vpl2vpl and mkt1font between release 0.2 and release 0.21
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Changes common to both programs
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-The vertical positioning of "under" accents has been adjusted again
-(the previous adjustment was a little too enthusiastic). They have
-been raised slightly.
-
-The height at which characters are reckoned to be so tall that
-superscript accents placed on them must be raised above the normal
-level has been increased slightly (from 1.1 x xheight to 1.15 x
-xheight).
-
-Changes to vpl2vpl and mkt1font between release 0.21 and release 0.211
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-A. Changes to vpl2vpl
-~~~~~~~~~~~~~~~~~~~~~
-
-A single minor change has been made to vpl2vpl: this has been
-necessitated by a change in the format of the LIGTABLE information
-produced by version 8.1 of afm2tfm, which now adds identificatory
-comments to lines referring to characters by means of octal
-notation. Vpl2vpl strips out such comments.
-
-
-B. Changes to mkt1font
-~~~~~~~~~~~~~~~~~~~~~~
-
-Minor bugfixes have been put in place: extra spaces in the the
-"noaccess def" and "noaccess put" definitions are now permitted, and
-so is a character named ".null". An error message has been improved.
-
-Changes to vpl2vpl and mkt1font between release 0.211 and release 0.212
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-A. Changes to vpl2vpl
-~~~~~~~~~~~~~~~~~~~~~
-
-Fixed a bug in the "double superscript accent on small caps
-character" routine.
-
-
-B. Changes to mkt1font
-~~~~~~~~~~~~~~~~~~~~~~
-
-Fixed a bug which produced incorrect output in cases where the
-character to be accented is defined as blank (e.g. space).
-
-Changes to vpl2vpl and mkt1font between release 0.212 and release 0.22
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Changes common to both programs
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-The programs now recognise "commaaccent" as a valid subscript
-accent. Note that they cannot replace this subscript with the
-superscript form used with the letter "g" (any more than they can
-substitute the apostrophe-like form of the caron that is used with
-"L", "d", "l" and "t"). Note also that as there is no position for
-this accent in either the standard TeX encoding or the dvips.enc
-variant, vpl2vpl will not actually be able to use it to build new
-characters without further modification.
-
-In the case where the definition file specifies, say, "z overdot"
-and the font contains a predefined version named "zdotaccent", it
-previously happened that the output font contained both characters.
-This has been fixed: now only the character requested in the
-definition file exists in the output.
-
-Changes to vpl2vpl and mkt1font between release 0.22 and release 0.221
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-A. Changes to mkt1font
-~~~~~~~~~~~~~~~~~~~~~~
-
-Fixed a bug which caused the program to fail after incorrectly
-identifying CharStrings definitions.
-
-Changes to vpl2vpl and mkt1font between release 0.221 and release 0.222
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-A. Changes to mkt1font
-~~~~~~~~~~~~~~~~~~~~~~
-
-Changed FamilyName to remove only the final one of a number of
-hyphenated elements from the font name.