Preview: Open an IDT file with a "*" character if the "*" is only between nucleotides (RNA presets or unsplit nucleotides)

[NadezhdaPeskun]

Steps to Reproduce

1. Switch to Macro
2. Open from Clipboard
3. Add IDT sequence /52MOErG/*/i2MOErG/*/3Phos/

4.Select IDT >> Open

5. Save >> Select IDT >> Try to Save structure to IDT format

Actual behavior User cannot Save the next sequences to IDT - it's OK User can Open the next IDT sequences - it's error; /52MOErG/*/i2MOErG/*/3Phos/ OR /5Phos/*/i2MOErG/*/3Phos/

Expected behavior The user should be able to open an IDT file with a "*" character if the "*" is only between nucleotides or nucleosides (RNA presets or unsplit nucleotides).

And Error message should appear while user try to Open the next examples: /52MOErG/*/i2MOErG/*/3Phos/ OR /5Phos/*/i2MOErG/*/3Phos/

Tasks:

• https://github.com/epam/ketcher/issues/4310
• https://github.com/epam/Indigo/issues/1899
• https://github.com/epam/Indigo/issues/1900
• https://github.com/epam/Indigo/issues/1588
• https://github.com/epam/Indigo/issues/1654 Issue
• https://github.com/epam/Indigo/issues/1974

Versions: Windows 11 Chrome Version Version 123.0.6312.106 (Official Build) (64-bit)

CI version: Ketcher Version 2.22.0-rc.1 Build at 2024-04-15; 20:00:15 Indigo Toolkit Version 1.21.0-dev4

[AlexeyGirin]

Verified.

• Indigo Toolkit Version 1.21.0-rc.1.0-g9194599b2-wasm32-wasm-clang-19.0.0
• Ketcher Version 2.22.0-rc.2 Build at 2024-06-03; 18:43:00
• Chrome Version 125.0.6422.142 (Official Build) (64-bit)
• Windows 10

[AlexeyGirin]

Test case added to automation table