TeXStudio markiert fehlerhaft korrekten Code.

[Axomas]

Hallo,

In letzter Zeit beobache ich, dass TeXStudio fälschlicherweise korrekten Code als Fehler markiert.
Das Kompilieren funktioniert einwandfrei.

Beispiel:

Im Code
\addplot[blue, thick, samples=100] {1.23 * exp(2/3 * x) * x^2};

wird das "^" rot markiert.

Das ist sehr seltsam. Ein Bug?
Gruß A.

[muzimuzhi]

Im Code \addplot[blue, thick, samples=100] {1.23 * exp(2/3 * x) * x^2};

wird das "^" rot markiert.

The braced argument in \addplot[<options>] {<math expression>}; accepts a math expression, which has a special syntax provided by tikz package, one of the dependencies of pgfplots package.

Currently the syntax highlighter and cwl file format of TeXstudio understand only the most common modes: text mode, math mode, and verbatim mode. The syntax of (pgfmath) math expression is not in that list.

In math expressions ^ is a valid math operator, but TeXstudio treats ^ as only valid in math mode.

[sunderme]

we can set it to verbatim but I believe "addplot" invents its own syntax again which uses the first argument in different contexts differently

[Axomas]

Maybe a future solution:
Short-term: TeXstudio could extend its syntax definition to recognize pgfmath expressions within \addplot as a valid math mode context. This would involve updating the .cwl files (Command Word List) to include ^ as a legitimate operator in the braced argument of \addplot[] {}. This is feasible with moderate effort and would prevent the false positive highlighting of ^ as an error.
Long-term: Full support for the pgfplots- and TikZ-specific syntax would be ideal, allowing TeXstudio to accurately parse the various contexts within commands like \addplot. While this is more complex due to the diverse syntax contexts (e.g., key-value options in [] vs. mathematical expressions in {}), it would provide a robust solution for users working with advanced plotting packages.