1 files changed, 20 insertions, 0 deletions
diff --git a/win32/doflex.cmd b/win32/doflex.cmd
new file mode 100755
index 0000000..8f32fbd
--- /dev/null
+++ b/win32/doflex.cmd
@@ -0,0 +1,20 @@
+@echo off
+rem doflex.cmd prefix mode target source
+rem   mode - either debug or release
+rem   target - generated parser file name without extension
+rem   source - input to bison
+
+if "%1"=="debug" (set flags=-t) else (set flags=-t)
+
+rem Test for presence of flex.
+flex --help >NUL
+if errorlevel 1 goto noflex
+
+rem Run flex.
+flex %flags% >%2.cpp %3
+exit
+
+:noflex
+echo Flex not found.  Using pre-generated files.
+copy %~pn3.cpp.cvs %2.cpp
+exit