Move main function to a separate file

3 files changed, 21 insertions, 12 deletions

diff --git a/Makefile.am b/Makefile.am
index fe67f74..47272e3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,8 +6,15 @@ EXTRA_DIST = autogen.sh
 
 bin_PROGRAMS = scanner
 
+scanner_LFLAGS = --header-file=lexer.h
 scanner_SOURCES =	\
+	main.c		\
+	lexer.h		\
 	lexer.l		\
 	symbol-table.h	\
 	symbol-table.c	\
 	$(NULL)
+
+lexer.h: scanner-lexer.c
+
+BUILT_SOURCES = lexer.h
diff --git a/lexer.l b/lexer.l
index fa86a97..ee934bb 100644
--- a/lexer.l
+++ b/lexer.l
@@ -1,6 +1,5 @@
 %option noyywrap
 %{
-#include <stdio.h>
 #include <string.h>
 #include "symbol-table.h"
 
@@ -145,15 +144,4 @@ ERROR           .
 
 %%
 
-int main(int argc, char **argv)
-{
-    if (argc > 1)
-        yyin = fopen(argv[1], "r");
-    else
-        yyin = stdin;
-    yylex();
-    printSymTab();
-    return 0;
-}
-
 // vim: set sw=4 ts=4 sts=4 et:
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..2f939d9
--- /dev/null
+++ b/main.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include "lexer.h"
+#include "symbol-table.h"
+
+int main(int argc, char **argv)
+{
+    if (argc > 1)
+        yyin = fopen(argv[1], "r");
+    else
+        yyin = stdin;
+    yylex();
+    printSymTab();
+    return 0;
+}