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[Groff-commit] groff/contrib/chem ChangeLog chem.pl examples/1...

From: Bernd Warken
Subject: [Groff-commit] groff/contrib/chem ChangeLog chem.pl examples/1...
Date: Fri, 27 Oct 2006 07:32:50 +0000 
CVSROOT:        /cvsroot/groff
Module name:    groff
Changes by:     Bernd Warken <bwarken>  06/10/27 07:32:50

Modified files:
        contrib/chem   : ChangeLog chem.pl 
        contrib/chem/examples/122: ch2a_ethyl.chem ch2b_benzene.chem 
                                   ch2c_benzene_right.chem 
                                   ch4a_stick.chem 
                                   ch4b_methyl_acetate.chem 
                                   ch4c_colon.chem ch4d_HCl.H2O.chem 
                                   ch4e_CaSO4.2H2O.chem ch4f_C.chem 
                                   ch4g_BP.chem ch4h_methacrylate.chem 
                                   ch4i_cyclo.chem ch4j_ring4.chem 
                                   ch4k_ring3.chem ch4l_vertex.chem 
                                   ch4m_double.chem ch4n_triple.chem 
                                   ch4o_aromatic.chem 
                                   ch4p_cholestanol.chem ch4q_rings.chem 
                                   ch4r_spiro.chem ch4s_heteroatoms.chem 
                                   ch4t_polycyclic.chem 
                                   ch4u_nicotine.chem 
                                   ch4v_histidine.chem ch4w_lsd.chem 
                                   ch4x_anisole.chem ch4y_reserpine.chem 
                                   ch4z1_eqn_glutamic.chem 
                                   ch4z2_text.chem ch5a_size.chem 
                                   ch6a_pic.chem ch6b_dna.chem 
                                   chAa_polymer.chem 
                                   chAb_vinyl_chloro.chem 
                                   chAc_morphine.chem 
                                   chAd_chlorophyll.chem chAe_chair.chem 
                                   chAf_arrow.chem chAg_circle.chem 
                                   chAh_brackets.chem 
                                   chAi_poly_vinyl_chloride.chem 
                                   chBa_jump.chem chBb_bonds.chem 
                                   chBc_rings.chem 

Log message:
        Update chem 0.1.1

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/ChangeLog?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/chem.pl?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch2a_ethyl.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch2b_benzene.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch2c_benzene_right.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4a_stick.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4b_methyl_acetate.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4c_colon.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4d_HCl.H2O.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4e_CaSO4.2H2O.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4f_C.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4g_BP.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4h_methacrylate.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4i_cyclo.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4j_ring4.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4k_ring3.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4l_vertex.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4m_double.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4n_triple.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4o_aromatic.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4p_cholestanol.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4q_rings.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4r_spiro.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4s_heteroatoms.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4t_polycyclic.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4u_nicotine.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4v_histidine.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4w_lsd.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4x_anisole.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4y_reserpine.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4z1_eqn_glutamic.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch4z2_text.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch5a_size.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch6a_pic.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/ch6b_dna.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chAa_polymer.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chAb_vinyl_chloro.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chAc_morphine.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chAd_chlorophyll.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chAe_chair.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chAf_arrow.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chAg_circle.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chAh_brackets.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chAi_poly_vinyl_chloride.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chBa_jump.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chBb_bonds.chem?cvsroot=groff&r1=1.1&r2=1.2
http://cvs.savannah.gnu.org/viewcvs/groff/contrib/chem/examples/122/chBc_rings.chem?cvsroot=groff&r1=1.1&r2=1.2

Patches:
Index: ChangeLog
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/ChangeLog,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- ChangeLog   26 Oct 2006 22:13:49 -0000      1.1
+++ ChangeLog   27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,14 @@
-2006-10-25  Bernd Warken
+2006-10-27  Bernd Warken
+       ________________________________________________________________
+        * release of chem 0.1.1
+
+       * chem.pl:
+       - Add handling of `[' and `]' (extension of chem awk).
+       - Restrict line break after labels.
+
+       * ChangeLog: Correct the former entry.
+       
+2006-10-26  Bernd Warken
        ________________________________________________________________
         * release of chem 0.1.0
 
@@ -14,6 +24,7 @@
        - Add error massages.
        - error(): Add file name.
        - Add concatenation of lines with final backslash `\'.
+       - Add pic.tmac to guarantee that each pic display is centered.
        - Warnings and strict are active.
 
        ### Source files of the chem Perl version
@@ -22,6 +33,9 @@
 
        * macros.pic: Pic macro file that is loaded by each run of chem.
 
+       * pic.tmac: Macro file for .PS and .PE; taken over from the groff
+       source file <groff-top-source>/tmac/pic.tmac.
+
        * Makefile.sub: Make file for the groff system.
 
        * ChangeLog: This file.
@@ -34,6 +48,12 @@
 
        * examples/README.txt: Information on the example files.
        
+       * examples/122/*.chem: Example files from the classical chem book
+       122.ps at <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
+
+       * examples/122/README: Information on the example files in this
+       directory.
+
 2006-10-16  Bernd Warken
 
        * awk version of chem

Index: chem.pl
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/chem.pl,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- chem.pl     26 Oct 2006 22:13:49 -0000      1.1
+++ chem.pl     27 Oct 2006 07:32:50 -0000      1.2
@@ -30,8 +30,8 @@
 # settings
 ########################################################################
 
-my $Program_Version = '0.1.0';
-my $Last_Update = '26 Oct 2006';
+my $Program_Version = '0.1.1';
+my $Last_Update = '27 Oct 2006';
 
 # this setting of the groff version is only used before make is run,
 # otherwise @VERSION@ will set it.
@@ -460,10 +460,18 @@
 
     if ($Words[0] =~ /^[A-Z].*:$/) {
       # label;  falls thru after shifting left
-      $Last_Name = $Words[0];
+      my $w0 = $Words[0];
+      $Last_Name = $w0;
       $Last_Name =~ s/:$//;
-      print "$Words[0]\n";
+      print "$w0";
       shift @Words;
+      if (@Words) {
+       print " ";
+       $line =~ s/^\s*$w0\s*//;
+      } else {
+       print "\n";
+       return 1;
+      }
     }
 
     if ($Words[0] =~ /^"/) {
@@ -480,7 +488,8 @@
     if ($#Words >= 1) {
       if ($Words[0] =~ /^(double|triple|front|back)$/ &&
          $Words[1] eq 'bond') {
-       @Words = ($Words[0] . $Words[1], @Words[2..$#Words]);
+       my $w = shift @Words;
+       $Words[0] = $w . $Words[0];
        &bond($Words[0]);
        return 1;
       }
@@ -520,7 +529,11 @@
       &label();
       return 1;
     }
-    if (/./) {
+    if ($Words[0] =~ '[\[\]]') {
+      print $line, "\n";
+      return 1;
+    }
+    if ($line) {
       print 'Last: ', $line, "\n";
       $Last = $OTHER;
     }

Index: examples/122/ch2a_ethyl.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch2a_ethyl.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch2a_ethyl.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch2a_ethyl.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch2a_ethyl.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch2b_benzene.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch2b_benzene.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch2b_benzene.chem      26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch2b_benzene.chem      27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch2b_benzene.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch2c_benzene_right.chem
===================================================================
RCS file: 
/cvsroot/groff/groff/contrib/chem/examples/122/ch2c_benzene_right.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch2c_benzene_right.chem        26 Oct 2006 22:13:49 -0000      
1.1
+++ examples/122/ch2c_benzene_right.chem        27 Oct 2006 07:32:50 -0000      
1.2
@@ -1,4 +1,5 @@
 ch2c_benzene_right.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4a_stick.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4a_stick.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4a_stick.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4a_stick.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4a_stick.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4b_methyl_acetate.chem
===================================================================
RCS file: 
/cvsroot/groff/groff/contrib/chem/examples/122/ch4b_methyl_acetate.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4b_methyl_acetate.chem       26 Oct 2006 22:13:49 -0000      
1.1
+++ examples/122/ch4b_methyl_acetate.chem       27 Oct 2006 07:32:50 -0000      
1.2
@@ -1,4 +1,5 @@
 ch4b_methyl_acetate.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4c_colon.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4c_colon.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4c_colon.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4c_colon.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4c_colon.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4d_HCl.H2O.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4d_HCl.H2O.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4d_HCl.H2O.chem      26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4d_HCl.H2O.chem      27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4d_HCl.H2O.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4e_CaSO4.2H2O.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4e_CaSO4.2H2O.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4e_CaSO4.2H2O.chem   26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4e_CaSO4.2H2O.chem   27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4e_CaSO4.2H2O.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4f_C.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4f_C.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4f_C.chem    26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4f_C.chem    27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4f_C.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4g_BP.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4g_BP.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4g_BP.chem   26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4g_BP.chem   27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4g_BP.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4h_methacrylate.chem
===================================================================
RCS file: 
/cvsroot/groff/groff/contrib/chem/examples/122/ch4h_methacrylate.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4h_methacrylate.chem 26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4h_methacrylate.chem 27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4h_methacrylate.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4i_cyclo.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4i_cyclo.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4i_cyclo.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4i_cyclo.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4i_cyclo.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4j_ring4.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4j_ring4.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4j_ring4.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4j_ring4.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4j_ring4.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4k_ring3.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4k_ring3.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4k_ring3.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4k_ring3.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4k_ring3.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4l_vertex.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4l_vertex.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4l_vertex.chem       26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4l_vertex.chem       27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4l_vertex.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4m_double.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4m_double.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4m_double.chem       26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4m_double.chem       27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4m_double.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4n_triple.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4n_triple.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4n_triple.chem       26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4n_triple.chem       27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4n_triple.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4o_aromatic.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4o_aromatic.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4o_aromatic.chem     26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4o_aromatic.chem     27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4o_aromatic.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4p_cholestanol.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4p_cholestanol.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4p_cholestanol.chem  26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4p_cholestanol.chem  27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4p_cholestanol.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4q_rings.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4q_rings.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4q_rings.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4q_rings.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4q_rings.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4r_spiro.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4r_spiro.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4r_spiro.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4r_spiro.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4r_spiro.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4s_heteroatoms.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4s_heteroatoms.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4s_heteroatoms.chem  26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4s_heteroatoms.chem  27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4s_heteroatoms.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4t_polycyclic.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4t_polycyclic.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4t_polycyclic.chem   26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4t_polycyclic.chem   27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4t_polycyclic.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4u_nicotine.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4u_nicotine.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4u_nicotine.chem     26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4u_nicotine.chem     27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4u_nicotine.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4v_histidine.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4v_histidine.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4v_histidine.chem    26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4v_histidine.chem    27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4v_histidine.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4w_lsd.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4w_lsd.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4w_lsd.chem  26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4w_lsd.chem  27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4w_lsd.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4x_anisole.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4x_anisole.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4x_anisole.chem      26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4x_anisole.chem      27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4x_anisole.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4y_reserpine.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4y_reserpine.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4y_reserpine.chem    26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4y_reserpine.chem    27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4y_reserpine.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch4z1_eqn_glutamic.chem
===================================================================
RCS file: 
/cvsroot/groff/groff/contrib/chem/examples/122/ch4z1_eqn_glutamic.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4z1_eqn_glutamic.chem        26 Oct 2006 22:13:49 -0000      
1.1
+++ examples/122/ch4z1_eqn_glutamic.chem        27 Oct 2006 07:32:50 -0000      
1.2
@@ -1,4 +1,5 @@
 ch4z1_eqn_glutamic.chem:
+.br
 .EQ
 delim $$
 .EN

Index: examples/122/ch4z2_text.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch4z2_text.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch4z2_text.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch4z2_text.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch4z2_text.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch5a_size.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch5a_size.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch5a_size.chem 26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch5a_size.chem 27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch5a_size.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch6a_pic.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch6a_pic.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch6a_pic.chem  26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch6a_pic.chem  27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 ch6a_pic.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/ch6b_dna.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/ch6b_dna.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/ch6b_dna.chem  26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/ch6b_dna.chem  27 Oct 2006 07:32:50 -0000      1.2
@@ -1,7 +1,11 @@
 ch6b_dna.chem:
-the [...] construct does not work for any chem.
+this does not work for any chem.
 .br
 .ig
+# To work with this file remove the `.ig' line above, uncomment the
+# following `.cstart' command, and remove the line `..' at the end of
+# this file.
+
 #.cstart
 
 # Example file for `chem':

Index: examples/122/chAa_polymer.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/chAa_polymer.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chAa_polymer.chem      26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chAa_polymer.chem      27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 chAa_polymer.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/chAb_vinyl_chloro.chem
===================================================================
RCS file: 
/cvsroot/groff/groff/contrib/chem/examples/122/chAb_vinyl_chloro.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chAb_vinyl_chloro.chem 26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chAb_vinyl_chloro.chem 27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 chAb_vinyl_chloro.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/chAc_morphine.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/chAc_morphine.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chAc_morphine.chem     26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chAc_morphine.chem     27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 chAc_morphine.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/chAd_chlorophyll.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/chAd_chlorophyll.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chAd_chlorophyll.chem  26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chAd_chlorophyll.chem  27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 chAd_chlorophyll.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/chAe_chair.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/chAe_chair.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chAe_chair.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chAe_chair.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 chAe_chair.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/chAf_arrow.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/chAf_arrow.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chAf_arrow.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chAf_arrow.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 chAf_arrow.chem:
+.br
 .EQ
 delim $$
 .EN

Index: examples/122/chAg_circle.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/chAg_circle.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chAg_circle.chem       26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chAg_circle.chem       27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 chAg_circle.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/chAh_brackets.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/chAh_brackets.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chAh_brackets.chem     26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chAh_brackets.chem     27 Oct 2006 07:32:50 -0000      1.2
@@ -1,8 +1,9 @@
 chAh_brackets.chem:
-the [...] construction does not work for any chem.
 .br
-.ig
-#.cstart
+.EQ
+delim $$
+.EN
+.cstart
 
 # Example file for `chem':
 
@@ -59,4 +60,6 @@
 # mode: Nroff
 # End:
 .cend
-..
+.EQ
+delim $$
+.EN

Index: examples/122/chAi_poly_vinyl_chloride.chem
===================================================================
RCS file: 
/cvsroot/groff/groff/contrib/chem/examples/122/chAi_poly_vinyl_chloride.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chAi_poly_vinyl_chloride.chem  26 Oct 2006 22:13:49 -0000      
1.1
+++ examples/122/chAi_poly_vinyl_chloride.chem  27 Oct 2006 07:32:50 -0000      
1.2
@@ -1,9 +1,7 @@
 chAi_poly_vinyl_chloride.chem:
-the [...] construction does not work for any chem.
 .br
-.ig
 .ps 8
-#.cstart
+.cstart
 
 # Example file for `chem':
 
@@ -145,4 +143,3 @@
 # mode: Nroff
 # End:
 .cend
-..

Index: examples/122/chBa_jump.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/chBa_jump.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chBa_jump.chem 26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chBa_jump.chem 27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 chBa_jump.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/chBb_bonds.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/chBb_bonds.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chBb_bonds.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chBb_bonds.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 chBb_bonds.chem:
+.br
 .cstart
 
 # Example file for `chem':

Index: examples/122/chBc_rings.chem
===================================================================
RCS file: /cvsroot/groff/groff/contrib/chem/examples/122/chBc_rings.chem,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -b -r1.1 -r1.2
--- examples/122/chBc_rings.chem        26 Oct 2006 22:13:49 -0000      1.1
+++ examples/122/chBc_rings.chem        27 Oct 2006 07:32:50 -0000      1.2
@@ -1,4 +1,5 @@
 chBc_rings.chem:
+.br
 .cstart
 
 # Example file for `chem':
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