Make extern C handling more flexible.

diff --git a/src/tools/pgindent/pgindent b/src/tools/pgindent/pgindent
index dd77046..616aad0 100755 (executable)
--- a/src/tools/pgindent/pgindent
+++ b/src/tools/pgindent/pgindent
@@ -67,11 +67,14 @@ do
                        line2 = $0;
                        if (skips > 0)
                                skips--;
-                       if (line1 ~ "^extern[   ]*\"C\"" &&
-                           line2 ~ "^{[        ]*$")
+                       if (line1 ~ "^#ifdef[   ]*__cplusplus" &&
+                           line2 ~ "^extern[   ]*\"C\"[        ]*$")
                        {
-                               # do not print first line
-                               print "/* Open extern \"C\" */";
+                               print line1;
+                               print line2;
+                               if (getline && $0 ~ /^{[        ]*$/)
+                                       print "/* Open extern \"C\" */";
+                               else    print $0;
                                line2 = "";
                                skips = 2;
                        }
@@ -1490,8 +1493,7 @@ do
 # remove tabs and retab with four spaces
        detab -t8 -qc |
        entab -t4 -qc |
-       sed 's;^/\* Open extern \"C\" \*/$;extern               "C"\
-{;' |
+       sed 's;^/\* Open extern \"C\" \*/$;{;' |
        sed 's;^/\* Close extern \"C\" \*/$;};' |
        sed 's;/\*---X_X;/* ---;g' |
 # workaround indent bug