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#
#
# Pas2nim - Pascal to Nimrod source converter
# (c) Copyright 2012 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
import
strutils, os, parseopt, llstream, ast, renderer, options, msgs,
paslex, pasparse
const
Version = "0.8"
Usage = """
pas2nim - Pascal to Nimrod source converter
(c) 2012 Andreas Rumpf
Usage: pas2nim [options] inputfile [options]
Options:
-o, --out:FILE set output filename
--ref convert ^typ to ref typ (default: ptr typ)
--boot use special translation rules for the Nimrod compiler
-v, --version write pas2nim's version
-h, --help show this help
"""
proc main(infile, outfile: string, flags: set[TParserFlag]) =
var stream = llStreamOpen(infile, fmRead)
if stream == nil: rawMessage(errCannotOpenFile, infile)
var p: TParser
openParser(p, infile, stream, flags)
var module = parseUnit(p)
closeParser(p)
renderModule(module, outfile)
var
infile = ""
outfile = ""
flags: set[TParserFlag] = {}
for kind, key, val in getopt():
case kind
of cmdArgument: infile = key
of cmdLongOption, cmdShortOption:
case key
of "help", "h":
stdout.write(Usage)
quit(0)
of "version", "v":
stdout.write(Version & "\n")
quit(0)
of "o", "out": outfile = val
of "ref": incl(flags, pfRefs)
of "boot": flags = flags + {pfRefs, pfMoreReplacements, pfImportBlackList}
else: stdout.writeln("[Error] unknown option: " & key)
of cmdEnd: assert(false)
if infile.len == 0:
# no filename has been given, so we show the help:
stdout.write(Usage)
else:
if outfile.len == 0:
outfile = changeFileExt(infile, "nim")
infile = addFileExt(infile, "pas")
main(infile, outfile, flags)
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