yml2c
changeset 0 76005e62091d
child 4 e7b49a65cf3a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/yml2c	Mon Jul 11 23:15:28 2016 +0200
@@ -0,0 +1,102 @@
+#!/usr/bin/env python
+# vim: set fileencoding=utf-8 :
+
+"""\
+YML 2 compiler version 5.4
+Copyleft (c), 2009-2011, Volker Birk  http://fdik.org/yml/
+
+"""
+
+import sys, os, codecs, locale
+import fileinput, unicodedata
+from optparse import OptionParser
+
+from pyPEG import parse, u
+from yml2 import ymlCStyle, comment, oldSyntax
+import backend
+
+def printInfo(option, opt_str, value, parser):
+    sys.stdout.write(__doc__)
+
+def w(msg):
+    if isinstance(msg, BaseException):
+        try:
+            msg = str(msg) + "\n"
+        except:
+            msg = u(msg) + u"\n"
+    if type(msg) is unicode:
+        msg = codecs.encode(msg, sys.stderr.encoding)
+    sys.stderr.write(msg)
+
+optParser = OptionParser()
+optParser.add_option("-C", "--old-syntax", action="store_true", dest="old_syntax",
+        help="syntax of YML 2 version 1.x (compatibility mode)", default=False)
+optParser.add_option("-D", "--emit-linenumbers", action="store_true", dest="emitlinenumbers",
+        help="emit line numbers into the resulting XML for debugging purposes", default=False)
+optParser.add_option("-E", "--encoding", dest="encoding", metavar="ENCODING", default=locale.getdefaultlocale()[1],
+        help="encoding of input files (default to locale)")
+optParser.add_option("-I", "--include", dest="includePathText", metavar="INCLUDE_PATH",
+        help="precede YML_PATH by a colon separated INCLUDE_PATH to search for include files")
+optParser.add_option("-m", "--omit-empty-parm-tags", action="store_true", dest="omitemptyparm",
+        help="does nothing (only there for compatibility reasons)", default=False)
+optParser.add_option("-n", "--normalization", dest="normalization", metavar="NORMALIZATION", default="NFC",
+        help="Unicode normalization (none, NFD, NFKD, NFC, NFKC, FCD, default is NFC)")
+optParser.add_option("-o", "--output", dest="outputFile", metavar="FILE",
+        help="place output in file FILE")
+optParser.add_option("-p", "--parse-only", action="store_true", dest="parseonly",
+        help="parse only, then output pyAST as text to stdout", default=False)
+optParser.add_option("-V", "--version", action="callback", callback=printInfo, help="show version info")
+(options, args) = optParser.parse_args()
+
+if options.old_syntax:
+    oldSyntax()
+
+if options.emitlinenumbers:
+    backend.emitlinenumbers = True
+
+backend.encoding = options.encoding
+
+try:
+    if options.includePathText:
+        backend.includePath = options.includePathText.split(':')
+
+    dirs = os.environ.get('YML_PATH', '.').split(':')
+    backend.includePath.extend(dirs)
+
+    files = fileinput.input(args, mode="rU", openhook=fileinput.hook_encoded(options.encoding))
+    # fileinput suffer from two nasty bugs :
+    # - ignoring open hook with stdin
+    # - iterator requires ctrl-D to be pressed twice on some platform
+    if args in [[],['-']] :
+        files._files=[]
+        files._buffer=[unicode(line, options.encoding) for line in sys.stdin.readlines()]
+
+    ymlC = ymlCStyle()
+    result = parse(ymlC, files, True, comment, packrat=True)
+
+    if options.parseonly:
+        print result
+    else:
+        result = backend.finish(result)
+        if options.normalization != "none":
+            result = unicodedata.normalize(options.normalization, result)
+
+        if options.outputFile and options.outputFile != "-":
+            outfile = open(options.outputFile, "w")
+            outfile.write(codecs.encode(result, options.encoding))
+            outfile.close()
+        else:
+            print codecs.encode(result, options.encoding)
+
+except KeyboardInterrupt:
+    w("\n")
+    sys.exit(1)
+except KeyError, msg:
+    w(u"not found: " + u(msg) + u"\n")
+    sys.exit(4)
+except LookupError, msg:
+    w(u"not found: " + u(msg) + u"\n")
+    sys.exit(4)
+except Exception, msg:
+    w(msg)
+    sys.exit(5)