Review of #1109 (scorpio810):
- tst_resaveunchanged now resaves every .qet in examples/ twice instead
of two of them (24 rows, ~40 s). Dropping the load-time trim now also
fails affuteuse_250h.qet, which the two-file version missed.
- New case singleSpaceValueKept: a title-block property set to one
space survives two saves (#973), and an accented property comes back
unchanged. Fails if qetproject.cpp stops parsing with
PreserveSpacingOnlyNodes.
- New tst_diagramcontext: the QDom reader (projects) and the pugixml
reader (element definitions in the collection) return the same value
for plain, stray-spaced, accented and non-Latin text. Fails if the
pugixml path decodes as Latin-1 or either reader stops trimming.
The pugixml reader still reads a single-space value as "": pugixml drops
whitespace-only text unless parse_ws_pcdata is set, as it did before
this PR. That reader only sees element definitions, never a project, so
#973's title-block values do not go through it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Saving a project that had just been saved changed it again in 18 of the
24 example projects, so a project kept in version control showed changes
nobody made. Both causes were cleanup done on save but not on load:
- Symbol information whose values were all empty was written as an empty
<elementInformations/> block (DiagramContext::toXml() skips empty
values, Element::toXml() wrote the block anyway). The next load read it
as no information and the next save dropped it. The block is now written
only when something went into it.
- Information values were trimmed on save but not on load, so a label with
stray spaces (" PRISE") kept them in memory and in its displayed copy
until the project was opened again. The same rule, kept in one place,
now applies when reading: stray whitespace around real content trimmed,
a value that is only whitespace kept (#973).
All 24 examples now save identically a second time (master: 6), and each
one's first save is byte-for-byte what master wrote only on its second.
A title-block property set to a single space keeps it through two saves.
tst_resaveunchanged runs --resave twice on Projet_vierge.qet and
m_000.qet; both fail without this change.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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