1 files changed, 89 insertions, 0 deletions
diff --git a/pkg/system/help/xhelp/xhfiles.x b/pkg/system/help/xhelp/xhfiles.x
new file mode 100644
index 00000000..53597eda
--- /dev/null
+++ b/pkg/system/help/xhelp/xhfiles.x
@@ -0,0 +1,89 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<fset.h>
+include <ctype.h>
+include "../help.h"
+include	"xhelp.h"
+
+
+# XH_FILES -- Get the files associated with the requested help topic,
+# i.e. do a "help <topic> opt=files" request.
+
+procedure xh_files (xh, topic, curpack)
+
+pointer xh                                      #i task struct pointer
+char    topic[ARB]                           	#i help topic
+char    curpack[ARB]                           	#i current package
+
+pointer sp, bp, buf
+pointer	opt, val, line
+int	fd
+long	fsize
+char	fname[SZ_FNAME]
+
+long	fstatl()
+int	getline(), access(), open(), stridxs(), strlen()
+
+begin
+	if (topic[1] == EOS && curpack[1] == EOS)
+	    return
+
+	call smark (sp)
+	call salloc (line, SZ_LINE, TY_CHAR)
+	call salloc (buf, SZ_FNAME, TY_CHAR)
+	call salloc (opt, SZ_FNAME, TY_CHAR)
+	call salloc (val, SZ_FNAME, TY_CHAR)
+
+	# Get a temp file name.
+	call mktemp ("tmp$xhelpi", fname, SZ_FNAME)
+
+	# Open a temp file with the help information found.
+	fd = open (fname, NEW_FILE, TEXT_FILE)
+	call xh_get_help (fd, topic, curpack, "", HF_HTML, HELPDB(xh),
+	    "all", "files")
+	call close (fd)
+
+	# Open the results file for reading.
+	fd = open (fname, READ_ONLY, TEXT_FILE)
+	fsize = fstatl (fd, F_FILESIZE)
+
+	# If we got a result parse the lines for "opt=file" information.
+	if (fsize != 0) {
+
+            while (getline (fd, Memc[line]) != EOF) {
+
+		# Stomp the newline.
+	  	Memc[line+strlen(Memc[line])-1] = EOS
+
+		# Extract the option type and filename.
+		if (stridxs ("=", Memc[line]) > 0) {
+		    for (bp=line; IS_WHITE(Memc[bp]); bp=bp+1)
+			;
+		    call strcpy (Memc[bp], Memc[opt], 3)
+		    for (; Memc[bp] != '='; bp=bp+1)
+			;
+		    call strcpy (Memc[bp+1], Memc[val], SZ_FNAME)
+
+		    # See if the file exists.
+		    call sprintf (Memc[buf], SZ_FNAME, "%s %s \0")
+		        call pargstr (Memc[opt])
+		        call pargstr (Memc[val])
+		    if (access (Memc[val],0,0) == YES)
+		        call strcat (" 0", Memc[buf], SZ_FNAME)
+		    else
+		        call strcat (" 1", Memc[buf], SZ_FNAME)
+		    call gmsg (XH_GP(xh), "helpfiles", Memc[buf])
+
+		} else if (stridxs (":", Memc[line]) > 0) {
+		    call xh_pkgpath (xh, topic, curpack, Memc[line])
+		    call sprintf (Memc[buf], SZ_FNAME, "file %s")
+		        call pargstr (Memc[line])
+		    call gmsg (XH_GP(xh), "helpfiles", Memc[buf])
+		}
+	    }
+	}
+
+	call close (fd)		# clean up 
+	call delete (fname)
+	call sfree (sp)
+end