c_conf_gen lua script that generates getopt code for fast argc,argv parsing. for lazy people

1 files changed, 70 insertions, 0 deletions

diff --git a/c_conf_gen/cconfgen.lua b/c_conf_gen/cconfgen.lua
new file mode 100644
index 0000000..8fcd27c
--- /dev/null
+++ b/c_conf_gen/cconfgen.lua
@@ -0,0 +1,70 @@
+#!/usr/bin/lua
+
+TYPE_INT = 1
+TYPE_STR = 2
+TYPE_FILE = 3
+
+consts = require('consts')
+
+debug_mode = false
+
+--check if version is supported
+--why 5.3? utf8 and 64bit support
+if (_VERSION ~= "Lua 5.3" ) then
+	print "Wrong lua versions"
+	print "Supported 5.3 only"
+	os.exit(1)
+end
+
+config_file = nil
+output_file = nil
+for k,v in ipairs( arg ) do
+	if v == "-c" then
+		config_file = arg[k+1]
+	elseif v == "-o" then
+		output_file = arg[k+1]
+	end
+end
+if (config_file == nil) or (output_file == nil) then
+	print("I need at leas one argument")
+	os.exit(1)
+end
+
+print("Config file " .. config_file .. " loaded")
+
+cfg = require( config_file )
+of = io.open( output_file .. ".c", "w" )
+
+of:write( consts.implement_start( output_file .. ".h" ) )
+
+--generate list of params
+local getopt_p = "" 
+for k,v in ipairs( cfg.params_list ) do
+	if v ~= nil then
+		getopt_p = getopt_p .. v.shortopt
+	end
+end
+of:write( consts.getopt_start( getopt_p ) )
+
+for k,v in ipairs( cfg.params_list ) do
+	if v.type == TYPE_INT then
+		of:write( consts.getopt_int( v ) )
+	elseif v.type == TYPE_STR then
+		of:write( consts.getopt_string( v ))
+	elseif v.type == TYPE_FILE then
+		of:write( consts.getopt_file( v ))
+	end
+end
+
+of:write( consts.getopt_end() )
+
+of:write( consts.implement_end() )
+
+of:close()
+
+hf = io.open( output_file .. ".h", "w")
+hf:write( consts.header_def_start( string.upper( cfg.project_name ) ) )
+hf:write( consts.header_def_end( ) )
+hf:close()
+
+