[Libsysio-commit] HEAD: libsysio/src init.c

[Lee W. <lw...@us...>]

Update of /cvsroot/libsysio/libsysio/src
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv11788

Modified Files:
	init.c 
Log Message:


Add comments to init files; From Cray.

A hash, '#', symbol begins a comment that reads to the end of the line. Since
the init configuration language is not line-based, though, this is dangerous.
Just be *real* careful to terminate with a newline. Also, this only works
*outside* a specification -- The '{' to '}' groupings. Used inside, it's
a parsed character and would almost certainly err. Unfortunately,
the precedent is set and it's too difficult to back out now. Beware!


Index: init.c
===================================================================
RCS file: /cvsroot/libsysio/libsysio/src/init.c,v
retrieving revision 1.24
retrieving revision 1.25
diff -u -w -b -B -p -r1.24 -r1.25
--- init.c	18 Sep 2005 17:44:45 -0000	1.24
+++ init.c	18 Jan 2006 00:47:41 -0000	1.25
@@ -128,6 +128,12 @@ void	*_sysio_exit_trace_q = &_sysio_exit
 #endif
 
 /*
+ * In sysio_init we'll allow simple comments, strings outside {}
+ * delimited by COMMENT_INTRO, and '\n' or '\0'
+ */
+#define COMMENT_INTRO          '#'
+
+/*
  * Sysio library initialization. Must be called before anything else in the
  * library.
  */
@@ -958,6 +964,16 @@ _sysio_boot_namespace(const char *arg)
 		while ((c = *arg) != '\0' &&
 		       !(c == '{' || strchr(IGNORE_WHITE, c) == NULL))
 			arg++;
+		if (COMMENT_INTRO == c) {
+			/*
+			 * Discard comment.
+			 */
+			while (*arg && (*arg != '\n')) {
+				++arg;
+			}
+			continue;
+		}
+
 		if (c == '\0')
 			break;
 		if (c != '{') {