Fix M4 quoting of section 3.

This fixes M4 quoting of section 3 of the input file, including escape
sequences and character constants.

Tests were added to verify the behavior in section 3 with respect to
quoting. Both escaping of quotes and quoting of potential macro-start
characters are tested. Existing tests were also fixed to account for the new -- and now correct -- behavior. Many tests relied on the old behavior of expanding M4 macros
in section 3.  They needed to be updated for the new behavior.

1 files changed, 10 insertions, 10 deletions

diff --git a/tests/rescan_r.direct.l b/tests/rescan_r.direct.l
index 2255ee2..ceebc40 100644
--- a/tests/rescan_r.direct.l
+++ b/tests/rescan_r.direct.l
@@ -60,18 +60,18 @@ main (int argc, char* const argv[])
     }
 
     printf("Test 1: Reusing same scanner.\n");
-    yylex_init( &yyscanner );
-    yyset_out ( stdout, yyscanner);
+    testlex_init( &yyscanner );
+    testset_out ( stdout, yyscanner);
 
     for (i=0; i <  4; ++i){
 
         rewind(fp);
-        yyset_in  ( fp, yyscanner);
+        testset_in  ( fp, yyscanner);
 
-        while( yylex(yyscanner) )
+        while( testlex(yyscanner) )
             ;
     }
-    yylex_destroy( yyscanner );
+    testlex_destroy( yyscanner );
     printf("Test 1 OK\n\n");
 
     printf("Test 2: Rescanning with new scanner each time.\n");
@@ -80,14 +80,14 @@ main (int argc, char* const argv[])
 
     for (i=0; i < 4; ++i){
         yyscan_t  s;
-        yylex_init( &s );
-        yyset_out ( stdout, s);
+        testlex_init( &s );
+        testset_out ( stdout, s);
         rewind(fp);
-        yyset_in  ( fp, s);
+        testset_in  ( fp, s);
 
-        while( yylex(s) )
+        while( testlex(s) )
             ;
-        yylex_destroy( s );
+        testlex_destroy( s );
     }
     printf("Test 2 OK\n\n");