1 2008-01-04 Werner LEMBERG <wl@gnu.org>
3 * chem.man: Insert `\:' in URLs where appropriate.
5 2007-02-06 Eric S. Raymond <esr@snark.thyrsus.com>
7 * chem.man: Change .UR/.UE and .MT/.ME so the start macro no longer
8 takes a second argument that is pasted to the end of the generated
9 text. Instead, the end macro takes an argument that does the same
12 2007-02-02 Werner LEMBERG <wl@gnu.org>
14 * chem.man: Further refinements and normalizations.
16 2007-02-02 Eric S. Raymond <esr@snark.thyrsus.com>
18 * chem.man: Converted to use .SY/.OP/.YS and for cross-viewer
19 portability. Conversion checked using the protocol described in
22 2006-11-10 Bernd Warken
23 ________________________________________________________________
24 * release of chem 0.3.1
26 * chem.man: Add information about example files.
28 2006-11-10 Werner LEMBERG <wl@gnu.org>
30 * chem.man1: Rename back to...
32 Use @G@, @MACRODIR@, and @DATASUBDIR@.
34 * Makefile.sub (CLEANADD, all): Don't handle chem.man.
35 (chem.man): Remove rule.
36 (chem): s/tmacdir/MACRODIR/, s/picdir/PICDIR/.
38 * chem.pl: s/tmacdir/MACRODIR/, s/picdir/PICDIR/.
40 2006-11-10 Bernd Warken
41 ________________________________________________________________
42 * release of chem 0.3.0
44 * chem.man1: Rename `chem.man' to translate some `@...@'
45 constructs. Some minor corrections. Remove some unused macros.
47 * examples/README.txt, examples/122/README: Add information on
50 * chem.pic: Rename `macros.pic'.
52 * Makefile.sub, chem.pl: Replace `macros.pic' by `chem.pic'.
54 2006-11-09 Werner LEMBERG <wl@gnu.org>
58 2006-11-08 Bernd Warken
59 ________________________________________________________________
60 * release of chem 0.2.0
62 * pic.tmac: Remove this file. Use instead the installed pic.tmac
65 * Makefile.sub, chem.pl:
66 - Install macros.pic to $(tmacdir)/pic/chem.pic.
67 - Remove parts with `libdir'.
69 2006-11-07 Werner LEMBERG <wl@gnu.org>
71 * Makefile.sub: Add and fix $(srcdir) where necessary to make it
72 compile with srcdir != builddir. Other minor fixes improvements.
74 2006-11-07 Bernd Warken
75 ________________________________________________________________
76 * release of chem 0.1.2
78 ### `chem' works now with all example files (examples/*.chem and
81 * examples/122/README: Add some information on the example files.
83 * examples/122/chAi_poly_vinyl_chloride.chem: Use .ps with
84 argument `-2' and recall `.ps +2' at the end of the file. This
85 stops the size shift in the following files.
87 * examples/122/ch6b_dna.chem: Make the file runnable, it works
90 * examples/reserpine.chem: Change access to `begin chem'.
93 - Fix the BUGS section.
94 - Correct the name of the macro file to `macros.pic'.
95 - Extent section DESCRIPTION and LANGUAGE.
96 - Moieties and Strings: Rewritten section about moieties and
97 double quoted strings.
100 - parameter check: Add filespecs only when non-empty file.
101 - Set $Last_Type to $OTHER for the `pic' command.
102 - joinring(), label(), labsave(), reduce(): Remove these functions.
103 - `[', `]', `{', `}', `define': Make these and the defined
104 functions commands for `chem' without using the `pic' word.
105 - @Words: Fix it such that all double quoted strings are
106 completely in an element.
107 - `Last: ': Remove this prefix from all commands that are related
113 - $Line: Add this variable to store the unchanged input line.
114 - %Params: Add the variables from setparams() to this hash.
115 - %Types: Add BOND, MOL, RING, OTHER from init() to this hash.
116 - %Put: Move %put to this.
117 - %Dbl: Move %dbl to this.
118 - %Labtype: Move %labtype to this.
119 - %Aromatic: Move $aromatic to this.
120 - %Dc: Move %dc to this.
121 - %Nput: Move $nput to this.
122 - %Define: New hash for storing the names of the `define'
123 constructs during `chem'. Use the elements in `%Define' as `chem'
126 2006-10-27 Bernd Warken
127 ________________________________________________________________
128 * release of chem 0.1.1
131 - Add handling of `[' and `]' (extension of chem awk).
132 - Restrict line break after labels.
134 * ChangeLog: Correct the former entry.
136 2006-10-26 Bernd Warken
137 ________________________________________________________________
138 * release of chem 0.1.0
140 ### Extensions to the chem awk version.
143 - parameters: -h, --help, -v, --version, -- are added as options.
144 The minus character - is added as filespec for standard input, it
145 may be used several times.
146 - remove the functions `inline', `shiftfields', and `set'.
147 - Fix the handling of the initialization commands .PS, .cstart,
148 `begin chem', and `end'.
149 - Add error massages.
150 - error(): Add file name.
151 - Add concatenation of lines with final backslash `\'.
152 - Add pic.tmac to guarantee that each pic display is centered.
153 - Warnings and strict are active.
155 ### Source files of the chem Perl version
157 * chem.pl: Source file for the Perl version of chem.
159 * macros.pic: Pic macro file that is loaded by each run of chem.
161 * pic.tmac: Macro file for .PS and .PE; taken over from the groff
162 source file <groff-top-source>/tmac/pic.tmac.
164 * Makefile.sub: Make file for the groff system.
166 * ChangeLog: This file.
168 * chem.man: Manual page for the Perl version of chem.
170 * README.txt: File for information on this chem version.
172 * examples/*.chem: Self-constructed example files for chem.
174 * examples/README.txt: Information on the example files.
176 * examples/122/*.chem: Example files from the classical chem book
177 122.ps at <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
179 * examples/122/README: Information on the example files in this
182 2006-10-16 Bernd Warken
184 * awk version of chem
185 chem is a roff preprocessor that generates chemical structure
186 diagrams suitable for the pic preprocessor. The original version
187 of chem is an awk script written by Brian Kernighan. This project
188 is a rewrite of chem in Perl.
190 2006-10-15 Bernd Warken
191 ________________________________________________________________
194 Copyright (C) 2006, 2007, 2008
195 Free Software Foundation, Inc.
196 Written by Bernd Warken
198 Copying and distribution of this file, with or without
199 modification, are permitted provided the copyright notice and this
200 notice are preserved.
202 This file is part of `chem', which is part of the `groff' project.
204 ####### Emacs settings