cmark-format: Initial work on a formatting tool.

The only implemented feature is reindenting to arbitrary width,
but that was also the actually complicated one so there's that.

src/CMakeLists.txt

@@ -70,6 +70,9 @@ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libcmark.pc.in
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libcmark.pc
   DESTINATION ${LIB_INSTALL_DIR}/pkgconfig)
 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmark-format.in
+  ${CMAKE_CURRENT_BINARY_DIR}/cmark-format)
+
 include (GenerateExportHeader)
 
 add_executable(${PROGRAM} ${PROGRAM_SOURCES})

src/cmark-format.in

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import argparse
+
+HERE = "@CMAKE_CURRENT_SOURCE_DIR@"
+sys.path.append(HERE)
+sys.path.append(os.path.join(HERE, os.pardir, 'wrappers'))
+
+from remarkor import *
+from wrapper import conf
+
+conf.set_library_path("@CMAKE_CURRENT_BINARY_DIR@")
+
+if __name__=='__main__':
+    arg_parser = argparse.ArgumentParser()
+    arg_parser.add_argument('input')
+    arg_parser.add_argument('--width', type=int, default=80)
+    args = arg_parser.parse_args()
+
+    remarkor = Remarkor.from_filename(args.input)
+    res = remarkor.remark(width=args.width)
+    sys.stdout.write(res)