wizard/bertos_utils.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 #
   4 # Copyright 2008 Develer S.r.l. (http://www.develer.com/)
   5 # All rights reserved.
   6 #
   7 # $Id:$
   8 #
   9 # Author: Lorenzo Berni <duplo@develer.com>
  10 #
  11
  12 import os
  13 import fnmatch
  14 import glob
  15 import re
  16 import shutil
  17 import pickle
  18
  19 import const
  20 from plugins import codelite_project
  21 import DefineException
  22
  23 def isBertosDir(directory):
  24    return os.path.exists(directory + "/VERSION")
  25
  26 def bertosVersion(directory):
  27    return open(directory + "/VERSION").readline().strip()
  28
  29 def createBertosProject(project_info):
  30     directory = project_info.info("PROJECT_PATH")
  31     sources_dir = project_info.info("SOURCES_PATH")
  32     if not os.path.isdir(directory):
  33         os.mkdir(directory)
  34     f = open(directory + "/project.bertos", "w")
  35     f.write(pickle.dumps(project_info))
  36     f.close()
  37     # Destination source dir
  38     srcdir = directory + "/bertos"
  39     shutil.rmtree(srcdir, True)
  40     shutil.copytree(sources_dir + "/bertos", srcdir)
  41     # Destination makefile
  42     makefile = directory + "/Makefile"
  43     if os.path.exists(makefile):
  44         os.remove(makefile)
  45     makefile = open("mktemplates/Makefile").read()
  46     makefile = makefileGenerator(project_info, makefile)
  47     open(directory + "/Makefile", "w").write(makefile)
  48     # Destination project dir
  49     prjdir = directory + "/" + os.path.basename(directory)
  50     shutil.rmtree(prjdir, True)
  51     os.mkdir(prjdir)
  52     # Destination configurations files
  53     cfgdir = prjdir + "/cfg"
  54     shutil.rmtree(cfgdir, True)
  55     os.mkdir(cfgdir)
  56     for configuration, information in project_info.info("CONFIGURATIONS").items():
  57         string = open(sources_dir + "/" + configuration, "r").read()
  58         for start, parameter in information["paramlist"]:
  59             infos = information[parameter]
  60             value = infos["value"]
  61             if "type" in infos["informations"] and infos["informations"]["type"] == "autoenabled":
  62                 value = "1"
  63             if "unsigned" in infos["informations"].keys() and infos["informations"]["unsigned"]:
  64                 value += "U"
  65             if "long" in infos["informations"].keys() and infos["informations"]["long"]:
  66                 value += "L"
  67             string = sub(string, parameter, value)
  68         f = open(cfgdir + "/" + os.path.basename(configuration), "w")
  69         f.write(string)
  70         f.close()
  71     # Destinatio mk file
  72     makefile = open("mktemplates/template.mk", "r").read()
  73     makefile = mkGenerator(project_info, makefile)
  74     open(prjdir + "/" + os.path.basename(prjdir) + ".mk", "w").write(makefile)
  75     # Destination main.c file
  76     main = open("srctemplates/main.c", "r").read()
  77     open(prjdir + "/main.c", "w").write(main)
  78     # Codelite project files
  79     if "codelite" in project_info.info("OUTPUT"):
  80         codelite_project.createProject(project_info)
  81
  82 def mkGenerator(project_info, makefile):
  83     """
  84     Generates the mk file for the current project.
  85     """
  86     mk_data = {}
  87     mk_data["$pname"] = os.path.basename(project_info.info("PROJECT_PATH"))
  88     mk_data["$cpuflag"] = project_info.info("CPU_INFOS")["CPU_FLAG_NAME"]
  89     mk_data["$cpuname"] = project_info.info("CPU_INFOS")["CORE_CPU"]
  90     mk_data["$cflags"] = " ".join(project_info.info("CPU_INFOS")["C_FLAGS"])
  91     mk_data["$ldflags"] = " ".join(project_info.info("CPU_INFOS")["LD_FLAGS"])
  92     mk_data["$cppflags"] = " ".join(project_info.info("CPU_INFOS")["CPP_FLAGS"])
  93     mk_data["$cppaflags"] = " ".join(project_info.info("CPU_INFOS")["CPPA_FLAGS"])
  94     mk_data["$cxxflags"] = " ".join(project_info.info("CPU_INFOS")["CXX_FLAGS"])
  95     mk_data["$asflags"] = " ".join(project_info.info("CPU_INFOS")["AS_FLAGS"])
  96     mk_data["$arflags"] = " ".join(project_info.info("CPU_INFOS")["AR_FLAGS"])
  97     mk_data["$csrc"], mk_data["$pcsrc"], mk_data["$cppasrc"], mk_data["$cxxsrc"], mk_data["$asrc"], mk_data["$constants"] = csrcGenerator(project_info)
  98     mk_data["$prefix"] = project_info.info("TOOLCHAIN")["path"].split("gcc")[0]
  99     mk_data["$suffix"] = project_info.info("TOOLCHAIN")["path"].split("gcc")[1]
 100     mk_data["$main"] = os.path.basename(project_info.info("PROJECT_PATH")) + "/main.c"
 101     for key in mk_data:
 102         while makefile.find(key) != -1:
 103             makefile = makefile.replace(key, mk_data[key])
 104     return makefile
 105
 106 def makefileGenerator(project_info, makefile):
 107     """
 108     Generate the Makefile for the current project.
 109     """
 110     # TODO write a general function that works for both the mk file and the Makefile
 111     while makefile.find("project_name") != -1:
 112         makefile = makefile.replace("project_name", os.path.basename(project_info.info("PROJECT_PATH")))
 113     return makefile
 114
 115 def csrcGenerator(project_info):
 116     modules = project_info.info("MODULES")
 117     files = project_info.info("FILES")
 118     if "harvard" in project_info.info("CPU_INFOS")["CPU_TAGS"]:
 119         harvard = True
 120     else:
 121         harvard = False
 122     # file to be included in CSRC variable
 123     csrc = []
 124     # file to be included in PCSRC variable
 125     pcsrc = []
 126     # files to be included in CPPASRC variable
 127     cppasrc = []
 128     # files to be included in CXXSRC variable
 129     cxxsrc = []
 130     # files to be included in ASRC variable
 131     asrc = []
 132     # constants to be included at the beginning of the makefile
 133     constants = {}
 134     for module, information in modules.items():
 135         module_files = set([])
 136         dependency_files = set([])
 137         # assembly sources
 138         asm_files = set([])
 139         if information["enabled"]:
 140             if "constants" in information:
 141                 constants.update(information["constants"])
 142             cfiles, sfiles = findModuleFiles(module, project_info)
 143             module_files |= set(cfiles)
 144             asm_files |= set(sfiles)
 145             for file_dependency in information["depends"]:
 146                 if file_dependency in files:
 147                     dependencyCFiles, dependencySFiles = findModuleFiles(file_dependency, project_info)
 148                     dependency_files |= set(dependencyCFiles)
 149                     asm_files |= set(dependencySFiles)
 150             for file in module_files:
 151                 if not harvard or "harvard" not in information or information["harvard"] == "both":
 152                     csrc.append(file)
 153                 if harvard and "harvard" in information:
 154                     pcsrc.append(file)
 155             for file in dependency_files:
 156                 csrc.append(file)
 157             for file in project_info.info("CPU_INFOS")["C_SRC"]:
 158                 csrc.append(file)
 159             for file in project_info.info("CPU_INFOS")["PC_SRC"]:
 160                 pcsrc.append(file)
 161             for file in asm_files:
 162                 cppasrc.append(file)
 163     for file in project_info.info("CPU_INFOS")["CPPA_SRC"]:
 164         cppasrc.append(file)
 165     for file in project_info.info("CPU_INFOS")["CXX_SRC"]:
 166         cxxsrc.append(file)
 167     for file in project_info.info("CPU_INFOS")["ASRC"]:
 168         asrc.append(file)
 169     csrc = " \\\n\t".join(csrc) + " \\"
 170     pcsrc = " \\\n\t".join(pcsrc) + " \\"
 171     cppasrc = " \\\n\t".join(cppasrc) + " \\"
 172     cxxsrc = " \\\n\t".join(cxxsrc) + " \\"
 173     asrc = " \\\n\t".join(asrc) + " \\"
 174     constants = "\n".join([os.path.basename(project_info.info("PROJECT_PATH")) + "_" + key + " = " + str(value) for key, value in constants.items()])
 175     return csrc, pcsrc, cppasrc, cxxsrc, asrc, constants
 176
 177 def findModuleFiles(module, project_info):
 178     # Find the files related to the selected module
 179     cfiles = []
 180     sfiles = []
 181     # .c files related to the module and the cpu architecture
 182     for filename, path in findDefinitions(module + ".c", project_info) + \
 183             findDefinitions(module + "_" + project_info.info("CPU_INFOS")["TOOLCHAIN"] + ".c", project_info):
 184         path = path.replace(project_info.info("SOURCES_PATH") + os.sep, "")
 185         if os.sep != "/":
 186             path = replaceSeparators(path)
 187         cfiles.append(path + "/" + filename)
 188     # .s files related to the module and the cpu architecture
 189     for filename, path in findDefinitions(module + ".s", project_info) + \
 190             findDefinitions(module + "_" + project_info.info("CPU_INFOS")["TOOLCHAIN"] + ".s", project_info) + \
 191             findDefinitions(module + ".S", project_info) + \
 192             findDefinitions(module + "_" + project_info.info("CPU_INFOS")["TOOLCHAIN"] + ".S", project_info):
 193         path = path.replace(project_info.info("SOURCES_PATH") + os.sep, "")
 194         if os.sep != "/":
 195             path = replaceSeparators(path)
 196         sfiles.append(path + "/" + filename)
 197     # .c and .s files related to the module and the cpu tags
 198     for tag in project_info.info("CPU_INFOS")["CPU_TAGS"]:
 199         for filename, path in findDefinitions(module + "_" + tag + ".c", project_info):
 200             path = path.replace(project_info.info("SOURCES_PATH") + os.sep, "")
 201             if os.sep != "/":
 202                 path = replaceSeparators(path)
 203             cfiles.append(path + "/" + filename)
 204         for filename, path in findDefinitions(module + "_" + tag + ".s", project_info) + \
 205                 findDefinitions(module + "_" + tag + ".S", project_info):
 206             path = path.replace(project_info.info("SOURCES_PATH") + os.sep, "")
 207             if os.sep != "/":
 208                 path = replaceSeparators(path)
 209             sfiles.append(path + "/" + filename)
 210     return cfiles, sfiles
 211
 212 def replaceSeparators(path):
 213     """
 214     Replace the separators in the given path with unix standard separator.
 215     """
 216     while path.find(os.sep) != -1:
 217         path = path.replace(os.sep, "/")
 218     return path
 219
 220 def getSystemPath():
 221     path = os.environ["PATH"]
 222     if os.name == "nt":
 223         path = path.split(";")
 224     else:
 225         path = path.split(":")
 226     return path
 227
 228 def findToolchains(path_list):
 229     toolchains = []
 230     for element in path_list:
 231         for toolchain in glob.glob(element+ "/" + const.GCC_NAME):
 232             toolchains.append(toolchain)
 233     return list(set(toolchains))
 234
 235 def getToolchainInfo(output):
 236     info = {}
 237     expr = re.compile("Target: .*")
 238     target = expr.findall(output)
 239     if len(target) == 1:
 240         info["target"] = target[0].split("Target: ")[1]
 241     expr = re.compile("gcc version [0-9,.]*")
 242     version = expr.findall(output)
 243     if len(version) == 1:
 244         info["version"] = version[0].split("gcc version ")[1]
 245     expr = re.compile("gcc version [0-9,.]* \(.*\)")
 246     build = expr.findall(output)
 247     if len(build) == 1:
 248         build = build[0].split("gcc version ")[1]
 249         build = build[build.find("(") + 1 : build.find(")")]
 250         info["build"] = build
 251     expr = re.compile("Configured with: .*")
 252     configured = expr.findall(output)
 253     if len(configured) == 1:
 254         info["configured"] = configured[0].split("Configured with: ")[1]
 255     expr = re.compile("Thread model: .*")
 256     thread = expr.findall(output)
 257     if len(thread) == 1:
 258         info["thread"] = thread[0].split("Thread model: ")[1]
 259     return info
 260
 261 def loadSourceTree(project):
 262     fileList = [f for f in os.walk(project.info("SOURCES_PATH"))]
 263     project.setInfo("FILE_LIST", fileList)
 264
 265 def findDefinitions(ftype, project):
 266     L = project.info("FILE_LIST")
 267     definitions = []
 268     for element in L:
 269         for filename in element[2]:
 270             if fnmatch.fnmatch(filename, ftype):
 271                 definitions.append((filename, element[0]))
 272     return definitions
 273
 274 def loadCpuInfos(project):
 275     cpuInfos = []
 276     for definition in findDefinitions(const.CPU_DEFINITION, project):
 277         cpuInfos.append(getInfos(definition))
 278     return cpuInfos
 279
 280 def getInfos(definition):
 281     D = {}
 282     D.update(const.CPU_DEF)
 283     def include(filename, dict = D, directory=definition[1]):
 284         execfile(directory + "/" + filename, {}, D)
 285     D["include"] = include
 286     include(definition[0], D)
 287     D["CPU_NAME"] = definition[0].split(".")[0]
 288     D["DEFINITION_PATH"] = definition[1] + "/" + definition[0]
 289     del D["include"]
 290     return D
 291
 292 def getCommentList(string):
 293     comment_list = re.findall(r"/\*{2}\s*([^*]*\*(?:[^/*][^*]*\*+)*)/", string)
 294     comment_list = [re.findall(r"^\s*\* *(.*?)$", comment, re.MULTILINE) for comment in comment_list]
 295     return comment_list
 296
 297 def loadModuleDefinition(first_comment):
 298     to_be_parsed = False
 299     module_definition = {}
 300     for num, line in enumerate(first_comment):
 301         index = line.find("$WIZ$")
 302         if index != -1:
 303             to_be_parsed = True
 304             try:
 305                 exec line[index + len("$WIZ$ "):] in {}, module_definition
 306             except:
 307                 raise ParseError(num, line[index:])
 308         elif line.find("\\brief") != -1:
 309             module_definition["module_description"] = line[line.find("\\brief") + len("\\brief "):]
 310     module_dict = {}
 311     if "module_name" in module_definition.keys():
 312         module_name = module_definition[const.MODULE_DEFINITION["module_name"]]
 313         del module_definition[const.MODULE_DEFINITION["module_name"]]
 314         module_dict[module_name] = {}
 315         if const.MODULE_DEFINITION["module_depends"] in module_definition.keys():
 316             if type(module_definition[const.MODULE_DEFINITION["module_depends"]]) == str:
 317                 module_definition[const.MODULE_DEFINITION["module_depends"]] = (module_definition[const.MODULE_DEFINITION["module_depends"]],)
 318             module_dict[module_name]["depends"] = module_definition[const.MODULE_DEFINITION["module_depends"]]
 319             del module_definition[const.MODULE_DEFINITION["module_depends"]]
 320         else:
 321             module_dict[module_name]["depends"] = ()
 322         if const.MODULE_DEFINITION["module_configuration"] in module_definition.keys():
 323             module_dict[module_name]["configuration"] = module_definition[const.MODULE_DEFINITION["module_configuration"]]
 324             del module_definition[const.MODULE_DEFINITION["module_configuration"]]
 325         else:
 326             module_dict[module_name]["configuration"] = ""
 327         if "module_description" in module_definition.keys():
 328             module_dict[module_name]["description"] = module_definition["module_description"]
 329             del module_definition["module_description"]
 330         if const.MODULE_DEFINITION["module_harvard"] in module_definition.keys():
 331             harvard = module_definition[const.MODULE_DEFINITION["module_harvard"]]
 332             if harvard == "both" or harvard == "pgm_memory":
 333                 module_dict[module_name]["harvard"] = harvard
 334             del module_definition[const.MODULE_DEFINITION["module_harvard"]]
 335         module_dict[module_name]["constants"] = module_definition
 336         module_dict[module_name]["enabled"] = False
 337     return to_be_parsed, module_dict
 338
 339 def loadDefineLists(comment_list):
 340     define_list = {}
 341     for comment in comment_list:
 342         for num, line in enumerate(comment):
 343             index = line.find("$WIZ$")
 344             if index != -1:
 345                 try:
 346                     exec line[index + len("$WIZ$ "):] in {}, define_list
 347                 except:
 348                     raise ParseError(num, line[index:])
 349     for key, value in define_list.items():
 350         if type(value) == str:
 351             define_list[key] = (value,)
 352     return define_list
 353
 354 def getDescriptionInformations(comment):
 355     """
 356     Take the doxygen comment and strip the wizard informations, returning the tuple
 357     (comment, wizard_information)
 358     """
 359     brief = ""
 360     description = ""
 361     information = {}
 362     for num, line in enumerate(comment):
 363         index = line.find("$WIZ$")
 364         if index != -1:
 365             if len(brief) == 0:
 366                 brief += line[:index].strip()
 367             else:
 368                 description += " " + line[:index]
 369             try:
 370                 exec line[index + len("$WIZ$ "):] in {}, information
 371             except:
 372                 raise ParseError(num, line[index:])
 373         else:
 374             if len(brief) == 0:
 375                 brief += line.strip()
 376             else:
 377                 description += " " + line
 378                 description = description.strip()
 379     return brief.strip(), description.strip(), information
 380
 381 def getDefinitionBlocks(text):
 382     """
 383     Take a text and return a list of tuple (description, name-value).
 384     """
 385     block = []
 386     block_tmp = re.finditer(r"/\*{2}\s*([^*]*\*(?:[^/*][^*]*\*+)*)/\s*#define\s+((?:[^/]*?/?)+)\s*?(?:/{2,3}[^<].*?)?$", text, re.MULTILINE)
 387     for match in block_tmp:
 388         # Only the first element is needed
 389         comment = match.group(1)
 390         define = match.group(2)
 391         start = match.start()
 392         block.append(([re.findall(r"^\s*\* *(.*?)$", line, re.MULTILINE)[0] for line in comment.splitlines()], define, start))
 393     for match in re.finditer(r"/{3}\s*([^<].*?)\s*#define\s+((?:[^/]*?/?)+)\s*?(?:/{2,3}[^<].*?)?$", text, re.MULTILINE):
 394         comment = match.group(1)
 395         define = match.group(2)
 396         start = match.start()
 397         block.append(([comment], define, start))
 398     for match in re.finditer(r"#define\s*(.*?)\s*/{3}<\s*(.+?)\s*?(?:/{2,3}[^<].*?)?$", text, re.MULTILINE):
 399         comment = match.group(2)
 400         define = match.group(1)
 401         start = match.start()
 402         block.append(([comment], define, start))
 403     return block
 404
 405 def loadModuleData(project):
 406     module_info_dict = {}
 407     list_info_dict = {}
 408     configuration_info_dict = {}
 409     file_dict = {}
 410     for filename, path in findDefinitions("*.h", project) + findDefinitions("*.c", project) + findDefinitions("*.s", project) + findDefinitions("*.S", project):
 411         comment_list = getCommentList(open(path + "/" + filename, "r").read())
 412         if len(comment_list) > 0:
 413             module_info = {}
 414             configuration_info = {}
 415             try:
 416                 to_be_parsed, module_dict = loadModuleDefinition(comment_list[0])
 417             except ParseError, err:
 418                 raise DefineException.ModuleDefineException(path, err.line_number, err.line)
 419             for module, information in module_dict.items():
 420                 if "depends" not in information:
 421                     information["depends"] = ()
 422                 information["depends"] += (filename.split(".")[0],)
 423                 information["category"] = os.path.basename(path)
 424                 if "configuration" in information.keys() and len(information["configuration"]):
 425                     configuration = module_dict[module]["configuration"]
 426                     try:
 427                         configuration_info[configuration] = loadConfigurationInfos(project.info("SOURCES_PATH") + "/" + configuration)
 428                     except ParseError, err:
 429                         raise DefineException.ConfigurationDefineException(project.info("SOURCES_PATH") + "/" + configuration, err.line_number, err.line)
 430             module_info_dict.update(module_dict)
 431             configuration_info_dict.update(configuration_info)
 432             if to_be_parsed:
 433                 try:
 434                     list_dict = loadDefineLists(comment_list[1:])
 435                     list_info_dict.update(list_dict)
 436                 except ParseError, err:
 437                     raise DefineException.EnumDefineException(path, err.line_number, err.line)
 438     for filename, path in findDefinitions("*_" + project.info("CPU_INFOS")["TOOLCHAIN"] + ".h", project):
 439         comment_list = getCommentList(open(path + "/" + filename, "r").read())
 440         list_info_dict.update(loadDefineLists(comment_list))
 441     for tag in project.info("CPU_INFOS")["CPU_TAGS"]:
 442         for filename, path in findDefinitions("*_" + tag + ".h", project):
 443             comment_list = getCommentList(open(path + "/" + filename, "r").read())
 444             list_info_dict.update(loadDefineLists(comment_list))
 445     project.setInfo("MODULES", module_info_dict)
 446     project.setInfo("LISTS", list_info_dict)
 447     project.setInfo("CONFIGURATIONS", configuration_info_dict)
 448     project.setInfo("FILES", file_dict)
 449
 450 def formatParamNameValue(text):
 451     """
 452     Take the given string and return a tuple with the name of the parameter in the first position
 453     and the value in the second.
 454     """
 455     block = re.findall("\s*([^\s]+)\s*(.+?)\s*$", text, re.MULTILINE)
 456     return block[0]
 457
 458 def loadConfigurationInfos(path):
 459     """
 460     Return the module configurations found in the given file as a dict with the
 461     parameter name as key and a dict containig the fields above as value:
 462         "value": the value of the parameter
 463         "description": the description of the parameter
 464         "informations": a dict containig optional informations:
 465             "type": "int" | "boolean" | "enum"
 466             "min": the minimum value for integer parameters
 467             "max": the maximum value for integer parameters
 468             "long": boolean indicating if the num is a long
 469             "unsigned": boolean indicating if the num is an unsigned
 470             "value_list": the name of the enum for enum parameters
 471     """
 472     configuration_infos = {}
 473     configuration_infos["paramlist"] = []
 474     for comment, define, start in getDefinitionBlocks(open(path, "r").read()):
 475         name, value = formatParamNameValue(define)
 476         brief, description, informations = getDescriptionInformations(comment)
 477         configuration_infos["paramlist"].append((start, name))
 478         configuration_infos[name] = {}
 479         configuration_infos[name]["value"] = value
 480         configuration_infos[name]["informations"] = informations
 481         if not "type" in configuration_infos[name]["informations"]:
 482             configuration_infos[name]["informations"]["type"] = findParameterType(configuration_infos[name])
 483         if ("type" in configuration_infos[name]["informations"].keys() and
 484                 configuration_infos[name]["informations"]["type"] == "int" and
 485                 configuration_infos[name]["value"].find("L") != -1):
 486             configuration_infos[name]["informations"]["long"] = True
 487             configuration_infos[name]["value"] = configuration_infos[name]["value"].replace("L", "")
 488         if ("type" in configuration_infos[name]["informations"].keys() and
 489                 configuration_infos[name]["informations"]["type"] == "int" and
 490                 configuration_infos[name]["value"].find("U") != -1):
 491             configuration_infos[name]["informations"]["unsigned"] = True
 492             configuration_infos[name]["value"] = configuration_infos[name]["value"].replace("U", "")
 493         configuration_infos[name]["description"] = description
 494         configuration_infos[name]["brief"] = brief
 495     return configuration_infos
 496
 497 def findParameterType(parameter):
 498     if "value_list" in parameter["informations"]:
 499         return "enum"
 500     if "min" in parameter["informations"] or "max" in parameter["informations"] or re.match(r"^\d+U?L?$", parameter["value"]) != None:
 501         return "int"
 502
 503 def sub(string, parameter, value):
 504     """
 505     Substitute the given value at the given parameter define in the given string
 506     """
 507     return re.sub(r"(?P<define>#define\s+" + parameter + r"\s+)([^\s]+)", r"\g<define>" + value, string)
 508
 509 def isInt(informations):
 510     """
 511     Return True if the value is a simple int.
 512     """
 513     if ("long" not in informatios.keys() or not informations["long"]) and ("unsigned" not in informations.keys() or informations["unsigned"]):
 514         return True
 515     else:
 516         return False
 517
 518 def isLong(informations):
 519     """
 520     Return True if the value is a long.
 521     """
 522     if "long" in informations.keys() and informations["long"] and "unsigned" not in informations.keys():
 523         return True
 524     else:
 525         return False
 526
 527 def isUnsigned(informations):
 528     """
 529     Return True if the value is an unsigned.
 530     """
 531     if "unsigned" in informations.keys() and informations["unsigned"] and "long" not in informations.keys():
 532         return True
 533     else:
 534         return False
 535
 536 def isUnsignedLong(informations):
 537     """
 538     Return True if the value is an unsigned long.
 539     """
 540     if "unsigned" in informations.keys() and "long" in informations.keys() and informations["unsigned"] and informations["long"]:
 541         return True
 542     else:
 543         return False
 544
 545 class ParseError(Exception):
 546     def __init__(self, line_number, line):
 547         Exception.__init__(self)
 548         self.line_number = line_number
 549         self.line = line