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This checks the signature of the image data. Nrb)Fz,Image does not begin with the PNG signature.TN)rreadtellseek pngSignature)pathdataZfileObjf signatureposr r r pngValidators *  rc Cs~t|tjjr|}n tj|}d}t|ts6d|fSt}t}i}|D]}t|tsfd|fSt|dks~d|fS|D]}t|t sd|fSq|\} } | dkr| dsdd| fSt| dkrdS| | sdd | fS| d kr| dkrd S| |vr,dd | fS| | | |vrPdd | fS| | | || <qJd| v} | szdSdS)z; Check the validity of layercontents.plist. Version 3+. z1layercontents.plist in not in the correct format.Fr)Zglyphszglyphs.z3Invalid directory name (%s) in layercontents.plist.r)Fz(Empty layer name in layercontents.plist.z A glyphset does not exist at %s.zpublic.default)FzIThe name public.default is being used by a layer that is not the default.z1The layer name %s is used by more than one layer.z0The directory %s is used by more than one layer.)Fz1The required default glyph set is not in the UFO.r)rfsbaseZFSZosfsZOSFSrrr-r; startswithexistsrr) r ZufoPathOrFileSystemZ fileSystemZbogusFileMessageZusedLayerNamesZusedDirectoriescontentsentryiZ layerNameZ directoryNameZ foundDefaultr r r layerContentsValidatorsL                 rcCsd}t|sd|fSi}i}|D]\}}t|tsBd|fSt|ttfs\d|fS|sfdS|dr$|ds|dsq$ntdt|krdS|dr|}n|}|D]F}t|tsdd |fS||vrdd |fS|||<qq$d S) a> Check the validity of the groups. Version 3+ (though it's backwards compatible with UFO 1 and UFO 2). >>> groups = {"A" : ["A", "A"], "A2" : ["A"]} >>> groupsValidator(groups) (True, None) >>> groups = {"" : ["A"]} >>> valid, msg = groupsValidator(groups) >>> valid False >>> print(msg) A group has an empty name. >>> groups = {"public.awesome" : ["A"]} >>> groupsValidator(groups) (True, None) >>> groups = {"public.kern1." : ["A"]} >>> valid, msg = groupsValidator(groups) >>> valid False >>> print(msg) The group data contains a kerning group with an incomplete name. >>> groups = {"public.kern2." : ["A"]} >>> valid, msg = groupsValidator(groups) >>> valid False >>> print(msg) The group data contains a kerning group with an incomplete name. >>> groups = {"public.kern1.A" : ["A"], "public.kern2.A" : ["A"]} >>> groupsValidator(groups) (True, None) >>> groups = {"public.kern1.A1" : ["A"], "public.kern1.A2" : ["A"]} >>> valid, msg = groupsValidator(groups) >>> valid False >>> print(msg) The glyph "A" occurs in too many kerning groups. z,The group data is not in the correct format.F)FzA group has an empty name.zpublic.z public.kern1.z public.kern2.z public.kernN.)Fz@The group data contains a kerning group with an incomplete name.z-The group data %s contains an invalid member.z1The glyph "%s" occurs in too many kerning groups.r)rrrr;rrrr-)r bogusFormatMessageZfirstSideMappingZsecondSideMappingZ groupNameZ glyphListd glyphNamer r r groupsValidator<s6,       rcCsd}t|tsd|fS|D]z\}}t|ts>> kerning = {"A" : {"B" : 100}} >>> kerningValidator(kerning) (True, None) >>> kerning = {"A" : ["B"]} >>> valid, msg = kerningValidator(kerning) >>> valid False >>> print(msg) The kerning data is not in the correct format. >>> kerning = {"A" : {"B" : "100"}} >>> valid, msg = kerningValidator(kerning) >>> valid False >>> print(msg) The kerning data is not in the correct format. z.The kerning data is not in the correct format.Fr)rrrr;r)rrfirstZ secondDictrHr r r r kerningValidators       rz-The lib data is not in the correct format: %scCst|s"dt|j}dt|fS|D]\}}t|tsVddt|j|ffS|dkr*d}t|ttfsdt|j}d||fS|D]0}t|tsdt|j}d||fSqq*dS) ab Check the validity of the lib. Version 3+ (though it's backwards compatible with UFO 1 and UFO 2). >>> lib = {"foo" : "bar"} >>> fontLibValidator(lib) (True, None) >>> lib = {"public.awesome" : "hello"} >>> fontLibValidator(lib) (True, None) >>> lib = {"public.glyphOrder" : ["A", "C", "B"]} >>> fontLibValidator(lib) (True, None) >>> lib = "hello" >>> valid, msg = fontLibValidator(lib) >>> valid False >>> print(msg) # doctest: +ELLIPSIS The lib data is not in the correct format: expected a dictionary, ... >>> lib = {1: "hello"} >>> valid, msg = fontLibValidator(lib) >>> valid False >>> print(msg) The lib key is not properly formatted: expected str, found int: 1 >>> lib = {"public.glyphOrder" : "hello"} >>> valid, msg = fontLibValidator(lib) >>> valid False >>> print(msg) # doctest: +ELLIPSIS public.glyphOrder is not properly formatted: expected list or tuple,... >>> lib = {"public.glyphOrder" : ["A", 1, "B"]} >>> valid, msg = fontLibValidator(lib) >>> valid False >>> print(msg) # doctest: +ELLIPSIS public.glyphOrder is not properly formatted: expected str,... expected a dictionary, found %sFzAThe lib key is not properly formatted: expected str, found %s: %rzpublic.glyphOrderz/public.glyphOrder is not properly formatted: %sz expected list or tuple, found %szexpected str, found %sr) rtype__name___bogusLibFormatMessagerrr;rr)r reasonrZbogusGlyphOrderMessagerr r r fontLibValidators(-    rcCspt|s"dt|j}dt|fS|D]@\}}t|tsTd|}dt|fS|dkr*t|s*dSq*dS)a Check the validity of the lib. Version 3+ (though it's backwards compatible with UFO 1 and UFO 2). >>> lib = {"foo" : "bar"} >>> glyphLibValidator(lib) (True, None) >>> lib = {"public.awesome" : "hello"} >>> glyphLibValidator(lib) (True, None) >>> lib = {"public.markColor" : "1,0,0,0.5"} >>> glyphLibValidator(lib) (True, None) >>> lib = {"public.markColor" : 1} >>> valid, msg = glyphLibValidator(lib) >>> valid False >>> print(msg) public.markColor is not properly formatted. rFzkey (%s) should be a stringzpublic.markColor)Fz+public.markColor is not properly formatted.r)rrrrrrr;r)r rrr r r glyphLibValidators  r__main__)N)N)NNN)E__doc__r?iorZfs.baserZfs.osfscollections.abcrZfontTools.ufoLib.utilsrrrrrrr!r&r2rIrKrLrNrRrSrVrXrYrZr]r`rirkrprqrtrurvrnr{ryr~r}rrr.rrr;rrrrrrrrrrrrrrrrrrdoctesttestmodr r r r s       ;                '  J ;O*E&