mdocml: provide stubs to ignore .ds, .rm and .tr, which occur in the

mdocml: provide stubs to ignore .ds, .rm and .tr, which occur in the

[schwarze]

Log Message:
-----------
provide stubs to ignore .ds, .rm and .tr,
which occur in the standard pod2man preamble;
from OpenBSD;
"sounds good" joerg@, "can be checked in" kristaps@

Modified Files:
--------------
    mdocml:
        roff.7
        roff.c

Revision Data
-------------
Index: roff.7
===================================================================
RCS file: /usr/vhosts/mdocml.bsd.lv/cvs/mdocml/roff.7,v
retrieving revision 1.5
retrieving revision 1.6
diff -Lroff.7 -Lroff.7 -u -p -r1.5 -r1.6
--- roff.7
+++ roff.7
@@ -90,6 +90,12 @@ The syntax of this macro is the same as 
 .Sx \&ig ,
 except that a leading argument must be specified.
 It is ignored, as are its children.
+.Ss \&ds
+Define a string.
+This macro is intended to have two arguments,
+the name of the string to define and its content.
+Currently, it is ignored including its arguments,
+and the number of arguments is not checked.
 .Ss \&de1
 The syntax of this macro is the same as that of
 .Sx \&ig ,
@@ -235,6 +241,18 @@ the subsequent invocation of
 .Sx \&if
 will first signify the end of comment, then be invoked as a macro.
 This behaviour really shouldn't be counted upon.
+.Ss \&rm
+Remove a request, macro or string.
+This macro is intended to have one argument,
+the name of the request, macro or string to be undefined.
+Currently, it is ignored including its arguments,
+and the number of arguments is not checked.
+.Ss \&tr
+Output character translation.
+This macro is intended to have one argument, 
+consisting of an even number of characters.
+Currently, it is ignored including its arguments,
+and the number of arguments is not checked.
 .Sh COMPATIBILITY
 This section documents compatibility between mandoc and other other
 troff implementations, at this time limited to GNU troff
Index: roff.c
===================================================================
RCS file: /usr/vhosts/mdocml.bsd.lv/cvs/mdocml/roff.c,v
retrieving revision 1.82
retrieving revision 1.83
diff -Lroff.c -Lroff.c -u -p -r1.82 -r1.83
--- roff.c
+++ roff.c
@@ -38,10 +38,13 @@ enum	rofft {
 	ROFF_de,
 	ROFF_dei,
 	ROFF_de1,
+	ROFF_ds,
 	ROFF_el,
 	ROFF_ie,
 	ROFF_if,
 	ROFF_ig,
+	ROFF_rm,
+	ROFF_tr,
 	ROFF_cblock,
 	ROFF_ccond,
 	ROFF_MAX
@@ -98,6 +101,7 @@ static	enum rofferr	 roff_ccond(ROFF_ARG
 static	enum rofferr	 roff_cond(ROFF_ARGS);
 static	enum rofferr	 roff_cond_text(ROFF_ARGS);
 static	enum rofferr	 roff_cond_sub(ROFF_ARGS);
+static	enum rofferr	 roff_line(ROFF_ARGS);
 
 const	struct roffmac	 roffs[ROFF_MAX] = {
 	{ "am", roff_block, roff_block_text, roff_block_sub, 0 },
@@ -106,10 +110,13 @@ const	struct roffmac	 roffs[ROFF_MAX] = 
 	{ "de", roff_block, roff_block_text, roff_block_sub, 0 },
 	{ "dei", roff_block, roff_block_text, roff_block_sub, 0 },
 	{ "de1", roff_block, roff_block_text, roff_block_sub, 0 },
+	{ "ds", roff_line, NULL, NULL, 0 },
 	{ "el", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT },
 	{ "ie", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT },
 	{ "if", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT },
 	{ "ig", roff_block, roff_block_text, roff_block_sub, 0 },
+	{ "rm", roff_line, NULL, NULL, 0 },
+	{ "tr", roff_line, NULL, NULL, 0 },
 	{ ".", roff_cblock, NULL, NULL, 0 },
 	{ "\\}", roff_ccond, NULL, NULL, 0 },
 };
@@ -702,4 +709,13 @@ roff_cond(ROFF_ARGS)
 
 	*offs = pos;
 	return(ROFF_RERUN);
+}
+
+
+/* ARGSUSED */
+static enum rofferr
+roff_line(ROFF_ARGS)
+{
+
+	return(ROFF_IGN);
 }
--
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