Enhance the recognition of bison/flex source files

Gbp-Pq: Name 30_bts466827_enhance_bison_flex.patch

1 files changed, 39 insertions, 0 deletions

diff --git a/break_filelist b/break_filelist
index 86d0e74..021d913 100755
--- a/break_filelist
+++ b/break_filelist
@@ -190,7 +190,9 @@ $noisy = 0;            # Set to 1 if you want noisy reports.
   "awk" => "awk",
   "sed" => "sed",
   "y" => "yacc",
+  "yy" => "yacc",
   "l" => "lex",
+  "ll" => "lex",
   "makefile" => "makefile",
   "sql" => "sql",
   "php" => "php", "php3" => "php", "php4" => "php", "php5" => "php",
@@ -851,6 +853,12 @@ sub file_type_from_contents() {
  if (($firstline =~ m@^[,.]\\"@) &&
      $filename =~ m@\.(c|cpp|C|cxx|cc)$@) {return "not";}
 
+ # Make some more tests for Bison-generated files
+ if ($firstline =~ m@A Bison parser, made by GNU Bison@) {
+   print "Note: found bison-generated file $filename\n"
+       if $noisy;
+   return "auto";
+ }
 
  if (!($firstline =~ m@^#!@)) {return "";} # No script indicator here.
 
@@ -991,6 +999,37 @@ sub get_file_type {
        return "auto";
      }
    }
+   if ($basename =~ m/\.tab\.[ch]{2}$/) {
+     $possible_bison = $file_to_examine;
+     $possible_bison =~ s/\.tab\.[ch]{2}$/\.yy/;
+     if  (-s "$possible_bison") {
+       print "Note: found bison-generated file $file_to_examine\n"
+           if $noisy;
+       return "auto";
+     }
+   }
+
+   # Flex may generate arbitraty files. Try to be a bit clever about the
+   # generated file. (Flex generates only C/C++ files - no header files.)
+   if ($basename =~ m/.c$/) {
+     $possible_flex = $file_to_examine;
+     $possible_flex =~ s/.c$/\.l/;
+     if (-s "$possible_flex") {
+       print "Note: found flex-generated file $file_to_examine\n"
+           if $noisy;
+       return "auto";
+     }
+   }
+   if ($basename =~ m/.cc$/) {
+     $possible_flex = $file_to_examine;
+     $possible_flex =~ s/.cc$/\.ll/;
+     if (-s "$possible_flex") {
+       print "Note: found flex-generated file $file_to_examine\n"
+           if $noisy;
+       return "auto";
+     }
+   }
+
 
    # If there's a corresponding ".MASTER" file, treat this file
    # as automatically-generated derivative.  This handles "exmh".