Scanner-based parsing with support for element erasing

Also implement argv_file_scanner which provides support for reading command
line arguments from the argv array as well as files specified with command
line options. New examples: file. New tests: ctor, erase, file.

1 files changed, 7 insertions, 0 deletions

diff --git a/examples/file/options.cli b/examples/file/options.cli
new file mode 100644
index 0000000..3e6db5a
--- /dev/null
+++ b/examples/file/options.cli
@@ -0,0 +1,7 @@
+include <vector>;
+
+class options
+{
+  int --verbose;
+  std::vector<int> --val;
+};