[Core Proposal] Refine constraint for <sc> and <ec>

[yumaoka]

Authors

Yoshito Umaoka

Area of Changes

• [X] XLIFF specification document
• [ ] XLIFF schema
• [ ] XLIFF validator
• [ ] Example files

Detailed Description

In XLIFF 2.1 specification 4.2.3.4 sc, there is a constraint statement below:

---

The attribute isolated MUST be set to yes if and only if the element corresponding to this start marker is not in the same , and set to no otherwise.

---

This constraint makes perfect sense for <source> part . However, in translation process, not all <target> values might not be ready at a point.

<unit id="1">
  <segment id="seg1" state="translated">
    <source><sc id="1" type="fmt" subType="xlf:b"/>
        First sentence. </source>
    <target><sc id="1" type="fmt" subtype="xlf:b"/>
        最初の文。</target>
  </segment>
  <segment id="seg2">
    <source>Second sentence.<ec startRef="1" type="fmt"
        subType="xlf:b"/></source>
  </segment>
</unit>

The example above is invalid with the current XLIFF specification because <sc id="1" ...> in seg1 is not isolated="yes" although it does not have the corresponding <ec> element in seg2. The specification should be updated to clarify the constraint:

• This constraint always applies to <source> values in a <unit>.
• For values, this constraint is effective when all <segment>s in a <unit> have <target> elements.

Example Use Case

N/A

Compatibility Impacts

This specification update should have very small or no impacts to existing XLIFF applications.

[rmraya]

Processing requirements for <sc> have been adjusted in the specification

[yumaoka]

Description updated by 6b0037e17649e0bef98ef6446c4dfd7ea0cc35fb clarified the constraint.