Initial addition of groff ms writer.

* New module: Text.Pandoc.Writers.Ms.
* New template: default.ms.
* The writer uses texmath's new eqn writer to convert math
  to eqn format, so a ms file produced with this writer
  should be processed with `groff -ms -e` if it contains
  math.

1 files changed, 280 insertions, 0 deletions

diff --git a/test/tables.ms b/test/tables.ms
new file mode 100644
index 000000000..e0784a5ad
--- /dev/null
+++ b/test/tables.ms
@@ -0,0 +1,280 @@
+.LP
+Simple table with caption:
+.PP
+Demonstration of simple table syntax.
+.TS
+tab(@);
+r l c l.
+T{
+Right
+T}@T{
+Left
+T}@T{
+Center
+T}@T{
+Default
+T}
+_
+T{
+12
+T}@T{
+12
+T}@T{
+12
+T}@T{
+12
+T}
+T{
+123
+T}@T{
+123
+T}@T{
+123
+T}@T{
+123
+T}
+T{
+1
+T}@T{
+1
+T}@T{
+1
+T}@T{
+1
+T}
+.TE
+.LP
+Simple table without caption:
+.PP
+.TS
+tab(@);
+r l c l.
+T{
+Right
+T}@T{
+Left
+T}@T{
+Center
+T}@T{
+Default
+T}
+_
+T{
+12
+T}@T{
+12
+T}@T{
+12
+T}@T{
+12
+T}
+T{
+123
+T}@T{
+123
+T}@T{
+123
+T}@T{
+123
+T}
+T{
+1
+T}@T{
+1
+T}@T{
+1
+T}@T{
+1
+T}
+.TE
+.LP
+Simple table indented two spaces:
+.PP
+Demonstration of simple table syntax.
+.TS
+tab(@);
+r l c l.
+T{
+Right
+T}@T{
+Left
+T}@T{
+Center
+T}@T{
+Default
+T}
+_
+T{
+12
+T}@T{
+12
+T}@T{
+12
+T}@T{
+12
+T}
+T{
+123
+T}@T{
+123
+T}@T{
+123
+T}@T{
+123
+T}
+T{
+1
+T}@T{
+1
+T}@T{
+1
+T}@T{
+1
+T}
+.TE
+.LP
+Multiline table with caption:
+.PP
+Here's the caption.
+It may span multiple lines.
+.TS
+tab(@);
+cw(10.5n) lw(9.6n) rw(11.4n) lw(23.6n).
+T{
+Centered
+Header
+T}@T{
+Left
+Aligned
+T}@T{
+Right
+Aligned
+T}@T{
+Default aligned
+T}
+_
+T{
+First
+T}@T{
+row
+T}@T{
+12.0
+T}@T{
+Example of a row that spans
+multiple lines.
+T}
+T{
+Second
+T}@T{
+row
+T}@T{
+5.0
+T}@T{
+Here's another one.
+Note
+the blank line between rows.
+T}
+.TE
+.LP
+Multiline table without caption:
+.PP
+.TS
+tab(@);
+cw(10.5n) lw(9.6n) rw(11.4n) lw(23.6n).
+T{
+Centered
+Header
+T}@T{
+Left
+Aligned
+T}@T{
+Right
+Aligned
+T}@T{
+Default aligned
+T}
+_
+T{
+First
+T}@T{
+row
+T}@T{
+12.0
+T}@T{
+Example of a row that spans
+multiple lines.
+T}
+T{
+Second
+T}@T{
+row
+T}@T{
+5.0
+T}@T{
+Here's another one.
+Note
+the blank line between rows.
+T}
+.TE
+.LP
+Table without column headers:
+.PP
+.TS
+tab(@);
+r l c r.
+T{
+12
+T}@T{
+12
+T}@T{
+12
+T}@T{
+12
+T}
+T{
+123
+T}@T{
+123
+T}@T{
+123
+T}@T{
+123
+T}
+T{
+1
+T}@T{
+1
+T}@T{
+1
+T}@T{
+1
+T}
+.TE
+.LP
+Multiline table without column headers:
+.PP
+.TS
+tab(@);
+cw(10.5n) lw(9.6n) rw(11.4n) lw(23.6n).
+T{
+First
+T}@T{
+row
+T}@T{
+12.0
+T}@T{
+Example of a row that spans
+multiple lines.
+T}
+T{
+Second
+T}@T{
+row
+T}@T{
+5.0
+T}@T{
+Here's another one.
+Note
+the blank line between rows.
+T}
+.TE