def parseCat(self, filePath):
"""Parse a catalog given its full file path.
Returns two items:
- objCat: the catalog as a TUI.TCC.TelTarget.Catalog
- errList: a list of (line, errMsg) tuples, one per rejected line of object data
Raises RuntimeError if the file cannot be read or a default is invalid.
Uses universal newline support (new in Python 2.3) if possible.
"""
# print "parseCat(%r)" % (filePath,)
fp = RO.OS.openUniv(filePath)
catName = os.path.basename(filePath)
defOptionDict = self._keyMatcher.matchKeys({
"CSys": "FK5",
"RotType": "Object",
})
errList = []
objList = []
# save checkWdg data, then use try/finally to restore no matter what
ii = 0
for line in fp:
ii += 1
# print "Parsing object %d" % ii
isDefault = False
line = line.strip()
try:
if not line:
# blank line
continue
elif line[0] in ("#", "!"):
# comment
continue
elif line[0] in ('"', "'"):
# data with quoted object name
(objName, nextInd) = GetString.getString(line)
pos1, pos2, optionStr = posOptionRE.match(line[nextInd:]).groups()
else:
# data with unquoted object name or default option
match = namePosOptionRE.match(line)
if match:
# data with unquoted object name
objName, pos1, pos2, optionStr = match.groups()
elif line[0].isdigit():
raise ValueError("could not parse; is object name missing?")
else:
isDefault = True
optionStr = line
if optionStr:
optDict = ParseData.parseKeyValueData(optionStr)
else:
optDict = {}
if isDefault:
# update existing defaults
# merge new defaults into existing defaults
# and check the result
self._combineDicts(defOptionDict, optDict)
else:
# a line of data
# the data dictionary starts with the current defaults
dataDict = defOptionDict.copy()
# add object name and position (non-dictionary items)
dataDict.update({
"Name": objName,
"ObjPos": (pos1, pos2),
})
# merge new data with a copy of the defaults
# and check the result
self._combineDicts(dataDict, optDict)
objList.append(TUI.TCC.TelTarget.TelTarget(dataDict))
except Exception, e:
if isDefault:
raise RuntimeError(RO.StringUtil.strFromException(e))
else:
errList.append((line, RO.StringUtil.strFromException(e)))
def getValues(astr, begInd=0):
"""
Extracts all values (zero or more) for a keyword.
Inputs:
astr: the string to parse
begInd: index of start, must point to "=" if the keyword has any values
or ";" if the keyword has no values. Initial whitespace is skipped.
Returns a duple consisting of:
a tuple of values (empty if there are no values)
the index of the beginning of the next keyword, or None if end of string
Exceptions:
If astr[begInd] is not "=" or ";" then raises a SyntaxError
"""
if begInd is None:
return ((), None)
mo = _StartRE.match(astr, begInd)
if mo is None:
raise SyntaxError("cannot find value(s) starting at %d in :%s:" % \
(begInd, astr))
sepChar = mo.group('first')
nextInd = mo.start('next')
if nextInd < 0:
# no values and line finished
return ((), None)
if sepChar == ';':
# no values; line not finished
return ((), nextInd)
valueList = []
prevInd = nextInd
# print "data = :%s:, begInd = %d" % (astr, begInd)
while True:
# print "scanning :%s:, i.e. nextInd = %d" % (astr[nextInd:], nextInd)
nextIsKey = False
if astr[nextInd] in "\'\"":
# value is a delimited string
# print "looking for a delimited string"
(value, nextInd) = GetString.getString(astr, nextInd)
valueList.append(value)
elif astr[nextInd] != ';':
# value is an undelimited word (e.g. a number, NaN, etc.)
# print "looking for an undelimited word starting at %d" % (nextInd)
mo = _UndelimWordRE.match(astr, nextInd)
if mo is None:
raise SyntaxError("cannot find an undelimited word starting at %d in :%s:" % \
(nextInd, astr))
value = mo.group('str')
nextInd = mo.start('next')
if (nextInd < 0):
nextInd = None
valueList.append(value)
# print "valueList =", valueList, "nextInd =", nextInd,
# if nextInd is not None:
# print "char at nextInd =", astr[nextInd]
# else:
# print ""
if nextInd is None:
# done with line
break
# nextInd points to comma or semicolon
if astr[nextInd] == ';':
nextIsKey = True
elif astr[nextInd] != ',':
print("bug; expected comma or semicolon as next token; giving up on line")
nextInd = None
break
if (nextInd <= prevInd) and not nextIsKey:
print("bug: nextInd = %d <= prevInd = %d" % (nextInd, prevInd))
nextInd = None
break
# find index of next character
for ind in range(nextInd+1, len(astr)):
if astr[ind] not in ' \t':
nextInd = ind
break
else:
print("ignoring separator \"%s\" at end of data :%s:" % \
(astr[nextInd], astr))
nextInd = None
break
if nextInd >= len(astr):
break
if nextIsKey:
break
prevInd = nextInd
return (tuple(valueList), nextInd)
def parseCat(self, filePath):
"""Parse a catalog given its full file path.
Returns two items:
- objCat: the catalog as a TUI.TCC.TelTarget.Catalog
- errList: a list of (line, errMsg) tuples, one per rejected line of object data
Raises RuntimeError if the file cannot be read or a default is invalid.
Uses universal newline support (new in Python 2.3) if possible.
"""
# print "parseCat(%r)" % (filePath,)
fp = RO.OS.openUniv(filePath)
catName = os.path.basename(filePath)
defOptionDict = self._keyMatcher.matchKeys({
"CSys": "FK5",
"RotType": "Object",
})
errList = []
objList = []
# save checkWdg data, then use try/finally to restore no matter what
ii = 0
for line in fp:
ii += 1
# print "Parsing object %d" % ii
isDefault = False
line = line.strip()
try:
if not line:
# blank line
continue
elif line[0] in ("#", "!"):
# comment
continue
elif line[0] in ('"', "'"):
# data with quoted object name
(objName, nextInd) = GetString.getString(line)
pos1, pos2, optionStr = posOptionRE.match(
line[nextInd:]).groups()
else:
# data with unquoted object name or default option
match = namePosOptionRE.match(line)
if match:
# data with unquoted object name
objName, pos1, pos2, optionStr = match.groups()
elif line[0].isdigit():
raise ValueError(
"could not parse; is object name missing?")
else:
isDefault = True
optionStr = line
if optionStr:
optDict = ParseData.parseKeyValueData(optionStr)
else:
optDict = {}
if isDefault:
# update existing defaults
# merge new defaults into existing defaults
# and check the result
self._combineDicts(defOptionDict, optDict)
else:
# a line of data
# the data dictionary starts with the current defaults
dataDict = defOptionDict.copy()
# add object name and position (non-dictionary items)
dataDict.update({
"Name": objName,
"ObjPos": (pos1, pos2),
})
# merge new data with a copy of the defaults
# and check the result
self._combineDicts(dataDict, optDict)
objList.append(TUI.TCC.TelTarget.TelTarget(dataDict))
except Exception as e:
if isDefault:
raise RuntimeError(RO.StringUtil.strFromException(e))
else:
errList.append((line, RO.StringUtil.strFromException(e)))
# convert catalog options as appropriate
self._catOptions["doDisplay"] = RO.CnvUtil.asBool(
self._catOptions["doDisplay"])
# create catalog
# print "parseCat: catOptions =", self._catOptions
objCat = TUI.TCC.TelTarget.Catalog(name=catName,
objList=objList,
**self._catOptions)
# print "parseCat returning (%r, %r)" % (objCat, errList)
return objCat, errList
def getValues(astr, begInd=0):
"""
Extracts all values (zero or more) for a keyword.
Inputs:
astr: the string to parse
begInd: index of start, must point to "=" if the keyword has any values
or ";" if the keyword has no values. Initial whitespace is skipped.
Returns a duple consisting of:
a tuple of values (empty if there are no values)
the index of the beginning of the next keyword, or None if end of string
Exceptions:
If astr[begInd] is not "=" or ";" then raises a SyntaxError
"""
if begInd is None:
return ((), None)
mo = _StartRE.match(astr, begInd)
if mo is None:
raise SyntaxError("cannot find value(s) starting at %d in :%s:" % \
(begInd, astr))
sepChar = mo.group('first')
nextInd = mo.start('next')
if nextInd < 0:
# no values and line finished
return ((), None)
if sepChar == ';':
# no values; line not finished
return ((), nextInd)
valueList = []
prevInd = nextInd
# print "data = :%s:, begInd = %d" % (astr, begInd)
while True:
# print "scanning :%s:, i.e. nextInd = %d" % (astr[nextInd:], nextInd)
nextIsKey = False
if astr[nextInd] in "\'\"":
# value is a delimited string
# print "looking for a delimited string"
(value, nextInd) = GetString.getString(astr, nextInd)
valueList.append(value)
elif astr[nextInd] != ';':
# value is an undelimited word (e.g. a number, NaN, etc.)
# print "looking for an undelimited word starting at %d" % (nextInd)
mo = _UndelimWordRE.match(astr, nextInd)
if mo is None:
raise SyntaxError("cannot find an undelimited word starting at %d in :%s:" % \
(nextInd, astr))
value = mo.group('str')
nextInd = mo.start('next')
if (nextInd < 0):
nextInd = None
valueList.append(value)
# print "valueList =", valueList, "nextInd =", nextInd,
# if nextInd is not None:
# print "char at nextInd =", astr[nextInd]
# else:
# print ""
if nextInd is None:
# done with line
break
# nextInd points to comma or semicolon
if astr[nextInd] == ';':
nextIsKey = True
elif astr[nextInd] != ',':
print(
"bug; expected comma or semicolon as next token; giving up on line"
)
nextInd = None
break
if (nextInd <= prevInd) and not nextIsKey:
print("bug: nextInd = %d <= prevInd = %d" % (nextInd, prevInd))
nextInd = None
break
# find index of next character
for ind in range(nextInd + 1, len(astr)):
if astr[ind] not in ' \t':
nextInd = ind
break
else:
print("ignoring separator \"%s\" at end of data :%s:" % \
(astr[nextInd], astr))
nextInd = None
break
if nextInd >= len(astr):
break
if nextIsKey:
break
prevInd = nextInd
return (tuple(valueList), nextInd)
