doc/src/markdown.im

.if false
==================================================================================
	Copyright (c) 2019-2020 Nokia
	Copyright (c) 2018-2020 AT&T Intellectual Property.

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================================
.fi

.if false
	Mnemonic:	markdown.im
	Abstract:	This is a setup for a very basic generation of markdown from the few
				macros which are designed for the RMR doc.  It is very scaled down from
				the markdown imbed file supplied with {X}fm.

	Author:		E. Scott Danils
	Date:		26 October 2016
-------------------------------------------------------------------------------
.fi


.dh 1 m=.5i  e=no s=21 i=0 p=16 f=Helvetica-bold
.dh 2  m=.5i s=21 i=0      p=14 f=Helvetica-bold
.dh 3  m=.5i s=10 i=0      p=12 f=Helvetica-bold

.ju on
.hn off


.dv esc : .** rst needs an escape for some things

.**  these macros are common for prfm/tfm, markdown will override some
.dv indent .ll -.5i .in +.25i
.dv uindent .in -.25i .ll +.5i
.dv smindent .ll -.2i .in +.1i
.dv smuindent .in -.1i .ll +.2i

.dv def_list .bd $1
.dv end_dlist .ed
.dv bd .bd $1
.dv ed .ed

.dv ex_start .sp .5 .ll -.25i .in +.25i .sf Courier .st ^&extextsize .fo off
.** ex_end macro calls _must_ be placed in col 0 to cause an exit from no-format mode.
.dv ex_end .fo on .sf ^&textfont .st ^&textsize .in -.25i .ll +.25i .sp .1

.dv proto_start .sp 1 .cc .5i .st 9 .sf Courier-bold .nf
.dv proto_end .fo on .sf ^&text_font .st ^&text_size .sp .3


.dv h1 .sp .1 .h1 $1
.dv h2 .sp .1 .h2 $1
.dv h3 .sp .1 .h3 $1
.dv di .di $1 ^:

.** superscript number for start_note macro
.dv ss_num 1
.dv super .sm ^[ .sm ^&{ss_num}]
.dv note .dv ss_num ^[ ^&ss_num 1 + ] ^: .sm ^[ .sm ^&{ss_num}]
.dv atbot atclose

.dv start_note .cn start atclose Times-roman 8p .5i
.dv end_note .cn end
.dv bold $1
.dv cw $1
.dv set_font_prop
.dv ital $1
.dv lic1 *
.dv lic2 +

.dv line_len .ll $1
.dv space .sp 1
.dv half_space .sp 1
.dv mult_space .sp $1

.** -----------------------------------------------
.** not used, but might be needed if doc expanded
.** .dv ta .br  ^.ta .br |
.** .dv et .br ^.et .br
.** .dv cl |
.** .dv tr | .br ^.tr .br |
.** .dv table_head $1
.** .dv empty_cell  
.** -----------------------------------------------

.dv break .sm ^`  ^` .br
.dv br .sm ^`  ^` .br
.ju off
.dv image .ep ^[ .sm $2] ($3)

.** no concept of a definition list in markdown; no start/end and just make the text bold to emulate
.dv beg_dlist  .sp 1
.dv bd  .sp 1
.dv end_dlist .sp 1
.dv ed .sp 1
.dv ditem ^&break  **$1:**
.dv ditem_nosp ^&break  **$1:**

.dv beg_list .bl *
.dv item .li
.dv li .li
.dv end_list .el

.dv center_start
.dv center_end

.dv line .sp 1  ------

.** leading indention is significant to markdown, so turn it off
.in 0
.dv indent
.dv uindent .sp 2
.dv smindent
.dv smuindent .sp 2
.dv bold **${1}**
.dv ital _${1}_
.dv h1 .sp 2 # $1 .br
.dv h2 .sp 1 ## $1 .br
.dv h3 .sp 1 ### $1 .br

.dv ex_start .sp .5 .ll -4 .in .5i .sp 2 .fo off
.dv ex_end .fo on .in 0i .ll +4 .sp 2