Tabs.
git-svn-id: http://svn.robofab.com/branches/ufo3k@298 b5fa9d6c-a76f-4ffd-b3cb-f825fc41095c
This commit is contained in:
Tal Leming
parent
b4782ab182
commit
cfe561ea91
@ -11,189 +11,189 @@ reservedFileNames += "LPT1 LPT2 LPT3 COM2 COM3 COM4".lower().split(" ")
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maxFileNameLength = 255
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def userNameToFileName(userName, existing=[], prefix="", suffix=""):
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"""
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existing should be a case-insensitive list
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of all existing file names.
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"""
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existing should be a case-insensitive list
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of all existing file names.
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>>> userNameToFileName(u"a")
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u'a'
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>>> userNameToFileName(u"A")
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u'A_'
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>>> userNameToFileName(u"AE")
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u'A_E_'
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>>> userNameToFileName(u"Ae")
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u'A_e'
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>>> userNameToFileName(u"ae")
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u'ae'
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>>> userNameToFileName(u"aE")
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u'aE_'
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>>> userNameToFileName(u"a.alt")
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u'a.alt'
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>>> userNameToFileName(u"A.alt")
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u'A_.alt'
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>>> userNameToFileName(u"A.Alt")
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u'A_.A_lt'
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>>> userNameToFileName(u"A.aLt")
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u'A_.aL_t'
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>>> userNameToFileName(u"A.alT")
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u'A_.alT_'
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>>> userNameToFileName(u"T_H")
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u'T__H_'
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>>> userNameToFileName(u"T_h")
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u'T__h'
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>>> userNameToFileName(u"t_h")
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u't_h'
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>>> userNameToFileName(u"F_F_I")
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u'F__F__I_'
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>>> userNameToFileName(u"f_f_i")
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u'f_f_i'
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>>> userNameToFileName(u"Aacute_V.swash")
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u'A_acute_V_.swash'
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>>> userNameToFileName(u".notdef")
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u'_notdef'
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>>> userNameToFileName(u"con")
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u'_con'
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>>> userNameToFileName(u"CON")
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u'C_O_N_'
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>>> userNameToFileName(u"con.alt")
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u'_con.alt'
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>>> userNameToFileName(u"alt.con")
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u'alt._con'
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"""
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# the incoming name must be a unicode string
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assert isinstance(userName, unicode), "The value for userName must be a unicode string."
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# establish the prefix and suffix lengths
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prefixLength = len(prefix)
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suffixLength = len(suffix)
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# replace an initial period with an _
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# if no prefix is to be added
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if not prefix and userName[0] == ".":
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userName = "_" + userName[1:]
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# filter the user name
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filteredUserName = []
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for character in userName:
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# replace illegal characters with _
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if character in illegalCharacters:
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character = "_"
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# add _ to all non-lower characters
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elif character != character.lower():
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character += "_"
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filteredUserName.append(character)
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userName = "".join(filteredUserName)
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# clip to 255
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sliceLength = maxFileNameLength - prefixLength - suffixLength
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userName = userName[:sliceLength]
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# test for illegal files names
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parts = []
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for part in userName.split("."):
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if part.lower() in reservedFileNames:
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part = "_" + part
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parts.append(part)
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userName = ".".join(parts)
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# test for clash
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fullName = prefix + userName + suffix
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if fullName.lower() in existing:
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fullName = handleClash1(userName, existing, prefix, suffix)
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# finished
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return fullName
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>>> userNameToFileName(u"a")
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u'a'
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>>> userNameToFileName(u"A")
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u'A_'
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>>> userNameToFileName(u"AE")
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u'A_E_'
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>>> userNameToFileName(u"Ae")
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u'A_e'
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>>> userNameToFileName(u"ae")
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u'ae'
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>>> userNameToFileName(u"aE")
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u'aE_'
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>>> userNameToFileName(u"a.alt")
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u'a.alt'
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>>> userNameToFileName(u"A.alt")
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u'A_.alt'
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>>> userNameToFileName(u"A.Alt")
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u'A_.A_lt'
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>>> userNameToFileName(u"A.aLt")
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u'A_.aL_t'
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>>> userNameToFileName(u"A.alT")
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u'A_.alT_'
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>>> userNameToFileName(u"T_H")
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u'T__H_'
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>>> userNameToFileName(u"T_h")
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u'T__h'
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>>> userNameToFileName(u"t_h")
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u't_h'
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>>> userNameToFileName(u"F_F_I")
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u'F__F__I_'
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>>> userNameToFileName(u"f_f_i")
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u'f_f_i'
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>>> userNameToFileName(u"Aacute_V.swash")
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u'A_acute_V_.swash'
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>>> userNameToFileName(u".notdef")
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u'_notdef'
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>>> userNameToFileName(u"con")
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u'_con'
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>>> userNameToFileName(u"CON")
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u'C_O_N_'
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>>> userNameToFileName(u"con.alt")
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u'_con.alt'
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>>> userNameToFileName(u"alt.con")
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u'alt._con'
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"""
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# the incoming name must be a unicode string
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assert isinstance(userName, unicode), "The value for userName must be a unicode string."
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# establish the prefix and suffix lengths
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prefixLength = len(prefix)
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suffixLength = len(suffix)
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# replace an initial period with an _
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# if no prefix is to be added
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if not prefix and userName[0] == ".":
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userName = "_" + userName[1:]
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# filter the user name
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filteredUserName = []
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for character in userName:
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# replace illegal characters with _
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if character in illegalCharacters:
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character = "_"
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# add _ to all non-lower characters
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elif character != character.lower():
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character += "_"
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filteredUserName.append(character)
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userName = "".join(filteredUserName)
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# clip to 255
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sliceLength = maxFileNameLength - prefixLength - suffixLength
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userName = userName[:sliceLength]
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# test for illegal files names
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parts = []
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for part in userName.split("."):
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if part.lower() in reservedFileNames:
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part = "_" + part
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parts.append(part)
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userName = ".".join(parts)
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# test for clash
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fullName = prefix + userName + suffix
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if fullName.lower() in existing:
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fullName = handleClash1(userName, existing, prefix, suffix)
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# finished
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return fullName
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def handleClash1(userName, existing=[], prefix="", suffix=""):
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"""
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existing should be a case-insensitive list
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of all existing file names.
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"""
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existing should be a case-insensitive list
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of all existing file names.
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>>> prefix = ("0" * 5) + "."
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>>> suffix = "." + ("0" * 10)
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>>> existing = ["a" * 5]
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>>> prefix = ("0" * 5) + "."
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>>> suffix = "." + ("0" * 10)
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>>> existing = ["a" * 5]
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>>> e = list(existing)
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>>> handleClash1(userName="A" * 5, existing=e,
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... prefix=prefix, suffix=suffix)
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'00000.AAAAA000000000000001.0000000000'
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>>> e = list(existing)
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>>> handleClash1(userName="A" * 5, existing=e,
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... prefix=prefix, suffix=suffix)
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'00000.AAAAA000000000000001.0000000000'
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>>> e = list(existing)
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>>> e.append(prefix + "aaaaa" + "1".zfill(15) + suffix)
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>>> handleClash1(userName="A" * 5, existing=e,
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... prefix=prefix, suffix=suffix)
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'00000.AAAAA000000000000002.0000000000'
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>>> e = list(existing)
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>>> e.append(prefix + "aaaaa" + "1".zfill(15) + suffix)
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>>> handleClash1(userName="A" * 5, existing=e,
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... prefix=prefix, suffix=suffix)
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'00000.AAAAA000000000000002.0000000000'
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>>> e = list(existing)
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>>> e.append(prefix + "AAAAA" + "2".zfill(15) + suffix)
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>>> handleClash1(userName="A" * 5, existing=e,
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... prefix=prefix, suffix=suffix)
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'00000.AAAAA000000000000001.0000000000'
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"""
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# if the prefix length + user name length + suffix length + 15 is at
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# or past the maximum length, silce 15 characters off of the user name
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prefixLength = len(prefix)
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suffixLength = len(suffix)
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if prefixLength + len(userName) + suffixLength + 15 > maxFileNameLength:
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l = (prefixLength + len(userName) + suffixLength + 15)
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sliceLength = maxFileNameLength - l
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userName = userName[:sliceLength]
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finalName = None
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# try to add numbers to create a unique name
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counter = 1
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while finalName is None:
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name = userName + str(counter).zfill(15)
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fullName = prefix + name + suffix
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if fullName.lower() not in existing:
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finalName = fullName
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break
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else:
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counter += 1
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if counter >= 999999999999999:
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break
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# if there is a clash, go to the next fallback
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if finalName is None:
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finalName = handleClash2(existing, prefix, suffix)
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# finished
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return finalName
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>>> e = list(existing)
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>>> e.append(prefix + "AAAAA" + "2".zfill(15) + suffix)
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>>> handleClash1(userName="A" * 5, existing=e,
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... prefix=prefix, suffix=suffix)
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'00000.AAAAA000000000000001.0000000000'
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"""
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# if the prefix length + user name length + suffix length + 15 is at
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# or past the maximum length, silce 15 characters off of the user name
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prefixLength = len(prefix)
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suffixLength = len(suffix)
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if prefixLength + len(userName) + suffixLength + 15 > maxFileNameLength:
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l = (prefixLength + len(userName) + suffixLength + 15)
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sliceLength = maxFileNameLength - l
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userName = userName[:sliceLength]
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finalName = None
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# try to add numbers to create a unique name
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counter = 1
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while finalName is None:
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name = userName + str(counter).zfill(15)
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fullName = prefix + name + suffix
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if fullName.lower() not in existing:
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finalName = fullName
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break
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else:
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counter += 1
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if counter >= 999999999999999:
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break
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# if there is a clash, go to the next fallback
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if finalName is None:
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finalName = handleClash2(existing, prefix, suffix)
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# finished
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return finalName
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def handleClash2(existing=[], prefix="", suffix=""):
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"""
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existing should be a case-insensitive list
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of all existing file names.
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"""
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existing should be a case-insensitive list
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of all existing file names.
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>>> prefix = ("0" * 5) + "."
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>>> suffix = "." + ("0" * 10)
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>>> existing = [prefix + str(i) + suffix for i in range(100)]
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>>> prefix = ("0" * 5) + "."
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>>> suffix = "." + ("0" * 10)
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>>> existing = [prefix + str(i) + suffix for i in range(100)]
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>>> e = list(existing)
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>>> handleClash2(existing=e, prefix=prefix, suffix=suffix)
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'00000.100.0000000000'
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>>> e = list(existing)
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>>> handleClash2(existing=e, prefix=prefix, suffix=suffix)
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'00000.100.0000000000'
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>>> e = list(existing)
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>>> e.remove(prefix + "1" + suffix)
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>>> handleClash2(existing=e, prefix=prefix, suffix=suffix)
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'00000.1.0000000000'
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>>> e = list(existing)
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>>> e.remove(prefix + "1" + suffix)
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>>> handleClash2(existing=e, prefix=prefix, suffix=suffix)
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'00000.1.0000000000'
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>>> e = list(existing)
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>>> e.remove(prefix + "2" + suffix)
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>>> handleClash2(existing=e, prefix=prefix, suffix=suffix)
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'00000.2.0000000000'
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"""
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# calculate the longest possible string
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maxLength = maxFileNameLength - len(prefix) - len(suffix)
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maxValue = int("9" * maxLength)
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# try to find a number
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finalName = None
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counter = 1
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while finalName is None:
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fullName = prefix + str(counter) + suffix
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if fullName.lower() not in existing:
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finalName = fullName
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break
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else:
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counter += 1
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if counter >= maxValue:
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break
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# raise an error if nothing has been found
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if finalName is None:
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raise NameTranslationError("No unique name could be found.")
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# finished
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return finalName
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>>> e = list(existing)
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>>> e.remove(prefix + "2" + suffix)
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>>> handleClash2(existing=e, prefix=prefix, suffix=suffix)
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'00000.2.0000000000'
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"""
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# calculate the longest possible string
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maxLength = maxFileNameLength - len(prefix) - len(suffix)
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maxValue = int("9" * maxLength)
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# try to find a number
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finalName = None
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counter = 1
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while finalName is None:
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fullName = prefix + str(counter) + suffix
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if fullName.lower() not in existing:
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finalName = fullName
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break
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else:
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counter += 1
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if counter >= maxValue:
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break
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# raise an error if nothing has been found
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if finalName is None:
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raise NameTranslationError("No unique name could be found.")
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# finished
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return finalName
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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import doctest
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doctest.testmod()
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