4888 2007-07-27 19:32:06 +0000 Clarify text striping and consolidation of white space characters for nested xml:space 2007-08-06 09:32:43 +0000 1 1 1 Unclassified SVG Text All Specifications All All ASSIGNED P2 normal Errata 1 dtc-w3 schepers www-svg schepers oldest_to_newest 15947 0 dtc-w3 2007-07-27 19:32:06 +0000 Could the SVG specification clarify the handling of white space characters when there are nested text elements that differ in their xml:space attribute. When xml:space is 'default' the SVG specification requires the application to 'strip off all leading and trailing space characters', but also requires the application to preserve leading and trailing white space characters when xml:space is 'preserve'. But what is expected when there are leading and trailing white space characters defined in a mixture of elements with xml:space of 'preserve' and 'default'? When xml:space is 'default' the SVG specification requires the application to 'all contiguous space characters will be consolidated', but also requires the application to preserve white space characters when xml:space is 'preserve'. But what is expected when there are white space characters to consolidate that are defined in a mixture of elements with xml:space of 'preserve' and 'default'? Suggested clarification: When stripping leading and trailing white space characters, or consolidating white space characters, white space characters defined within a element with xml:space of "preserve" are not stripped or consolidated and they are recognized as white space characters for the purpose of stripping and consolidation and do not prevent the stripping or consolidation of adjacent white space characters defined in elements with xml:space="default". Example: Let 'P' represent a white space character defined in an element with xml:space of 'preserve'. Let 'D' represent a white space character defined in an element with xml:space of 'default'. Let 'T' represent non-space text characters. Given the string "DPDPDTDDTPTDPTPDTDPDTPDPTDPDPD" the application will strip and consolidate the white space characters to give the string: "PPTDTPTPTPTPTPPTPP" The current practice of SVG viewers appears to be to preserve white space characters defined within a xml:space="preserve" element even when mixed with adjacent whitespace characters defined in elements with xml:space="default". However the handling of white space characters defined in elements with xml:space="default" varies widely when mixed with adjacent whitespace characters defined in elements with xml:space="preserve". 15948 1 480 dtc-w3 2007-07-27 19:36:05 +0000 Created attachment 480 Text case. A test for some of the cases. This test gives different results in a range of SVG browsers: Batik, Adobe SVG, Inkscape, Opera. 16064 2 schepers 2007-08-06 09:28:03 +0000 Hi, Douglas- We discussed this in the SVG WG, and we agree with both your characterization of the issue and with your proposed clarification. We will tweak the wording, find the places in the spec that need to be changed, and get back to you soon to make sure you agree that we've addressed your issue to your satisfaction. We will add this to the errata for SVG 1.1, and make sure that the same changes are carried over into SVG 1.2. Thanks for pointing out this issue. It was very helpful, and will make the spec better. Regards- -Doug Schepers W3C Staff Contact, SVG, CDF, and WebAPI 480 2007-07-27 19:36:05 +0000 2007-07-27 19:36:05 +0000 Text case. text-nested-ws-01.svg image/svg+xml 2827 dtc-w3 PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPCFET0NUWVBFIHN2ZyBQVUJM SUMgIi0vL1czQy8vRFREIFNWRyAxLjEgQmFzaWMvL0VOIiAiaHR0cDovL3d3dy53My5vcmcvR3Jh cGhpY3MvU1ZHLzEuMS9EVEQvc3ZnMTEtYmFzaWMuZHRkIj4KPCEtLT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0tLT4K PCEtLT0gIENvcHlyaWdodCAyMDAwIFdvcmxkIFdpZGUgV2ViIENvbnNvcnRpdW0sIChNYXNzYWNo dXNldHRzICAgICAgICAgID0tLT4KPCEtLT0gIEluc3RpdHV0ZSBvZiBUZWNobm9sb2d5LCBJbnN0 aXR1dCBOYXRpb25hbCBkZSBSZWNoZXJjaGUgZW4gICAgICAgID0tLT4KPCEtLT0gIEluZm9ybWF0 aXF1ZSBldCBlbiBBdXRvbWF0aXF1ZSwgS2VpbyBVbml2ZXJzaXR5KS4gQWxsIFJpZ2h0cyAgICAg ID0tLT4KPCEtLT0gIFJlc2VydmVkLiBTZWUgaHR0cDovL3d3dy53My5vcmcvQ29uc29ydGl1bS9M ZWdhbC8uICAgICAgICAgICAgICAgID0tLT4KPCEtLT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0tLT4KPCEtLSA9PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT0tLT4KPCEtLSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAtLT4KPCEtLSBUZXN0IHByb3BlcnRpZXMgJ2xl dHRlci1zcGFjaW5nJyBhbmQgJ3dvcmQtc3BhY2luZycgICAgICAgICAgICAgICAgICAtLT4KPCEt LSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAtLT4KPCEtLSBBdXRob3IgOiBEb3VnbGFzIENyb3NoZXIgMjUtSnVuZS0y MDA3ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAtLT4KPCEtLT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0t LT4KPHN2ZyB2ZXJzaW9uPSIxLjEiIGJhc2VQcm9maWxlPSJiYXNpYyIKICAgICB4bWxucz0iaHR0 cDovL3d3dy53My5vcmcvMjAwMC9zdmciCiAgICAgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMu b3JnLzE5OTkveGxpbmsiCiAgICAgaWQ9InN2Zy1yb290IgogICAgIHdpZHRoPSIxMDAlIiBoZWln aHQ9IjEwMCUiCiAgICAgdmlld0JveD0iMCAwIDEzMCA2MCI+Cgk8dGl0bGUgaWQ9InRlc3QtdGl0 bGUiPnRleHQtbmVzdGVkLXdzLTAxLnN2ZzwvdGl0bGU+Cgk8ZGVzYyBpZD0idGVzdC1kZXNjIj5U ZXN0IHRoZSBuZXN0ZWQgeG1sOnNwYWNlIHByb3BlcnR5IGFuZCB3aGl0ZSBzcGFjZSBzdHJpcGlu ZyBhbmQgY29hbGVzY2luZy48L2Rlc2M+Cgk8IS0tPT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PS0tPgoJPCEtLUNvbnRl bnQgb2YgVGVzdCBDYXNlIGZvbGxvd3MuLi4gICAgICAgICAgICAgICAgICA9PT09PT09PT09PT09 PT09PT09PT0tLT4KCTwhLS09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09LS0+Cgk8ZyBpZD0idGVzdC1ib2R5LWNvbnRl bnQiPgoJCTxnIGZvbnQtZmFtaWx5PSJNb25vc3BhY2UiIGZvbnQtc2l6ZT0iOCI+CgkJPGxpbmUg eDE9IjEwIiB5MT0iMTAiIHgyPSIxMjAiIHkyPSIxMCIgc3Ryb2tlLXdpZHRoPSIxIiBzdHJva2U9 ImdyZWVuIi8+CgkJPCEtLSBFeHBlY3Q6ICIgIEEgQiBDIEQgRSAgRiAgIiAtLT4KCQk8dGV4dCB4 PSIxMCIgeT0iMTAiCgkJICAgICAgcm90YXRlPSI5MCA5MCAwIDkwIDAgOTAgMCA5MCAwIDkwIDAg OTAgOTAgMCA5MCA5MCA5MCA5MCA5MCA5MCA5MCIKCQkgICAgICBkeT0iOCAwIC04IDggLTggOCAt OCA4IC04IDggLTggOCAwIC04IDggMCAwIDAgMCAwIDAiCgkJICAgICAgeG1sOnNwYWNlPSJkZWZh dWx0Ij4KCQkJPHRzcGFuIHhtbDpzcGFjZT0icHJlc2VydmUiIGZpbGw9ImdyYXkiIHRleHQtZGVj b3JhdGlvbj0idW5kZXJsaW5lIj4gPC90c3Bhbj4KCQkJPHRzcGFuIHhtbDpzcGFjZT0icHJlc2Vy dmUiIGZpbGw9ImdyYXkiIHRleHQtZGVjb3JhdGlvbj0idW5kZXJsaW5lIj4gPC90c3Bhbj4KCQkJ QQoJCQlCPHRzcGFuIHhtbDpzcGFjZT0icHJlc2VydmUiIGZpbGw9ImdyYXkiIHRleHQtZGVjb3Jh dGlvbj0idW5kZXJsaW5lIj4gPC90c3Bhbj5DCgkJCTx0c3BhbiB4bWw6c3BhY2U9InByZXNlcnZl IiBmaWxsPSJncmF5IiB0ZXh0LWRlY29yYXRpb249InVuZGVybGluZSI+IDwvdHNwYW4+RAoJCQk8 dHNwYW4geG1sOnNwYWNlPSJwcmVzZXJ2ZSIgZmlsbD0iZ3JheSIgdGV4dC1kZWNvcmF0aW9uPSJ1 bmRlcmxpbmUiPiA8L3RzcGFuPgoJCQlFPHRzcGFuIHhtbDpzcGFjZT0icHJlc2VydmUiIGZpbGw9 ImdyYXkiIHRleHQtZGVjb3JhdGlvbj0idW5kZXJsaW5lIj4gPC90c3Bhbj4KCQkJPHRzcGFuIHht bDpzcGFjZT0icHJlc2VydmUiIGZpbGw9ImdyYXkiIHRleHQtZGVjb3JhdGlvbj0idW5kZXJsaW5l Ij4gPC90c3Bhbj5GCgkJCTx0c3BhbiB4bWw6c3BhY2U9InByZXNlcnZlIiBmaWxsPSJncmF5IiB0 ZXh0LWRlY29yYXRpb249InVuZGVybGluZSI+IDwvdHNwYW4+CgkJCTx0c3BhbiB4bWw6c3BhY2U9 InByZXNlcnZlIiBmaWxsPSJncmF5IiB0ZXh0LWRlY29yYXRpb249InVuZGVybGluZSI+IDwvdHNw YW4+CgkJPC90ZXh0PgoJCTwvZz4KCTwvZz4KPC9zdmc+Cg==