Add comments to various %option items to explain what they're doing.

Move the %options to the beginning if they weren't already there, and
put them in the same order in all files.

Add "prefix=" options to .l files that don't already have them, so we
don't have to pass a "-P" option.

Add "never-interactive" and "noyywrap" options to our lexical analyzers,
to remove extra isatty() checks and to eliminate the need for yywrap()
from the Flex library.

Get rid of %option nostdinit - that's the default.

Add .l.c: rules to Makefile.am files, replacing the rules for specific
.l files.  Have those rules all check that $(LEX) is set.

Update the address for the FSF.

svn path=/trunk/; revision=22424

1 files changed, 20 insertions, 2 deletions

diff --git a/wiretap/k12text.l b/wiretap/k12text.l
index 5c5ec54864..6494c5fee9 100644
--- a/wiretap/k12text.l
+++ b/wiretap/k12text.l
@@ -1,8 +1,26 @@
+/*
+ * We want to stop processing when we get to the end of the input.
+ */
 %option noyywrap
+
+/*
+ * We don't use unput, so don't generate code for it.
+ */
 %option nounput 
-%option outfile="k12text.c"
-%option prefix="K12Text_"
+
+/*
+ * We don't read from the terminal.
+ */
 %option never-interactive
+
+/*
+ * Prefix scanner routines with "K12Text_" rather than "yy", so this scanner
+ * can coexist with other scanners.
+ */
+%option prefix="K12Text_"
+
+%option outfile="k12text.c"
+
 %{
 /* k12text.l
  *