mdocml: downgrade ".so with absolute path" from FATAL to ERROR; allows

mdocml: downgrade ".so with absolute path" from FATAL to ERROR; allows

[schwarze]

Log Message:
-----------
downgrade ".so with absolute path" from FATAL to ERROR;
allows to get rid of ROFF_ERR

Modified Files:
--------------
    mdocml:
        libmandoc.h
        mandoc.h
        read.c
        roff.c

Revision Data
-------------
Index: libmandoc.h
===================================================================
RCS file: /home/cvs/mdocml/mdocml/libmandoc.h,v
retrieving revision 1.53
retrieving revision 1.54
diff -Llibmandoc.h -Llibmandoc.h -u -p -r1.53 -r1.54
--- libmandoc.h
+++ libmandoc.h
@@ -24,8 +24,7 @@ enum	rofferr {
 	ROFF_SO, /* include another file */
 	ROFF_IGN, /* ignore current line */
 	ROFF_TBL, /* a table row was successfully parsed */
-	ROFF_EQN, /* an equation was successfully parsed */
-	ROFF_ERR /* badness: puke and stop */
+	ROFF_EQN /* an equation was successfully parsed */
 };
 
 struct	buf {
Index: read.c
===================================================================
RCS file: /home/cvs/mdocml/mdocml/read.c,v
retrieving revision 1.108
retrieving revision 1.109
diff -Lread.c -Lread.c -u -p -r1.108 -r1.109
--- read.c
+++ read.c
@@ -210,6 +210,7 @@ static	const char * const	mandocerrs[MAN
 	"uname(3) system call failed, using UNKNOWN",
 	"unknown standard specifier",
 	"skipping request without numeric argument",
+	"NOT IMPLEMENTED: .so with absolute path or \"..\"",
 	"skipping all arguments",
 	"skipping excess arguments",
 	"divide by zero",
@@ -217,7 +218,6 @@ static	const char * const	mandocerrs[MAN
 	"generic fatal error",
 
 	"input too large",
-	"NOT IMPLEMENTED: .so with absolute path or \"..\"",
 	".so request failed",
 };
 
@@ -504,9 +504,6 @@ rerun:
 		case ROFF_IGN:
 			pos = 0;
 			continue;
-		case ROFF_ERR:
-			assert(MANDOCLEVEL_FATAL <= curp->file_status);
-			break;
 		case ROFF_SO:
 			if ( ! (curp->options & MPARSE_SO) &&
 			    (i >= blk.sz || blk.buf[i] == '\0')) {
Index: mandoc.h
===================================================================
RCS file: /home/cvs/mdocml/mdocml/mandoc.h,v
retrieving revision 1.179
retrieving revision 1.180
diff -Lmandoc.h -Lmandoc.h -u -p -r1.179 -r1.180
--- mandoc.h
+++ mandoc.h
@@ -166,6 +166,7 @@ enum	mandocerr {
 	MANDOCERR_OS_UNAME, /* uname(3) system call failed, using UNKNOWN */
 	MANDOCERR_ST_BAD, /* unknown standard specifier: St standard */
 	MANDOCERR_IT_NONUM, /* skipping request without numeric argument */
+	MANDOCERR_SO_PATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */
 	MANDOCERR_ARG_SKIP, /* skipping all arguments: macro args */
 	MANDOCERR_ARG_EXCESS, /* skipping excess arguments: macro ... args */
 	MANDOCERR_DIVZERO, /* divide by zero */
@@ -173,7 +174,6 @@ enum	mandocerr {
 	MANDOCERR_FATAL, /* ===== start of fatal errors ===== */
 
 	MANDOCERR_TOOLARGE, /* input too large */
-	MANDOCERR_SO_PATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */
 	MANDOCERR_SO_FAIL, /* .so request failed */
 
 	MANDOCERR_MAX
Index: roff.c
===================================================================
RCS file: /home/cvs/mdocml/mdocml/roff.c,v
retrieving revision 1.248
retrieving revision 1.249
diff -Lroff.c -Lroff.c -u -p -r1.248 -r1.249
--- roff.c
+++ roff.c
@@ -2103,7 +2103,7 @@ roff_tr(ROFF_ARGS)
 static enum rofferr
 roff_so(ROFF_ARGS)
 {
-	char *name;
+	char *name, *cp;
 
 	name = buf->buf + pos;
 	mandoc_vmsg(MANDOCERR_SO, r->parse, ln, ppos, "so %s", name);
@@ -2118,7 +2118,12 @@ roff_so(ROFF_ARGS)
 	if (*name == '/' || strstr(name, "../") || strstr(name, "/..")) {
 		mandoc_vmsg(MANDOCERR_SO_PATH, r->parse, ln, ppos,
 		    ".so %s", name);
-		return(ROFF_ERR);
+		buf->sz = mandoc_asprintf(&cp,
+		    ".sp\nSee the file %s.\n.sp", name) + 1;
+		free(buf->buf);
+		buf->buf = cp;
+		*offs = 0;
+		return(ROFF_REPARSE);
 	}
 
 	*offs = pos;
--
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