[TRACKER] Indentation, line breaks and GDScript

[dalexeev]

Godot version:
3.2, 4.0

Issue description:
Anything related to indents and line breaks in GDScript.

Bugs

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1. Folds don't work with non-indented content #15690
   archived bug topic:editor topic:gdscript usability +5
2. Blank/Comment lines at the beginning are considered "unsafe" #20418
   bug topic:gdscript usability +3
   
3. Safe lines become unsafe when organized in multiple lines #23667
   bug topic:editor topic:gdscript usability +4
4. GDScript: Blank/comment script lines use up CPU cycles inside for loop #33089
   bug topic:gdscript +2
5. Commenting multi-line code may lead to unnecessary warning #33687
   archived bug topic:gdscript +3
6. Indentation errors loading space indented project into tab indented editor #35007
   bug confirmed topic:gdscript +3
7. Parse error in multiline attribute expression #35415
   bug topic:gdscript +2
8. Parse error in multiline dict with equal sign #35416
   bug topic:gdscript +2
9. Parse error in multiline subscription expression #35417
   bug topic:gdscript +2
10. GDScript parser reports named enum as having the line number after the closing brace #35975
    bug topic:gdscript +2
11. "Auto brace complete" cause tokenizer error with strings as comments #35994
    bug confirmed topic:editor topic:gdscript +4
12. Automatic warning insertion ignores line continuation. #39460
    bug topic:editor topic:gdscript +3
13. GDScript: string ignores end of line and parse as new line character #40898
    bug regression topic:gdscript +3
14. Blank lines are indented when indenting multi-line selections #41113
    bug topic:editor topic:gui +3
15. Whitespace or comments following "\" character in multiline statement causes parse error #41654
    topic:gdscript +1
16. Wrong parse error line number (GDScript) #42884
    bug confirmed topic:gdscript +3
    
17. Incorrect indentation in multiline bracket auto-completion. #46384
    bug regression topic:editor +3
18. [4.0dev] GDScript - Mixed tabs and spaces not allowed in multiline declarations #49171
    bug regression topic:gdscript +3
19. Crash when using a multi-line ternary in @exports #50714
    bug confirmed crash topic:gdscript +4
20. Error when mixing tabs and spaces in comment line #52834
    bug discussion regression topic:gdscript +4
21. parse error on annotation with empty arguments list #54279
    bug topic:gdscript +2
    
22. parse error while parsing the annotation corner-case #54280
    bug topic:gdscript +2
23. .gd files changed unexpectedly on running a project #56510
    discussion topic:editor usability +3
24. GDScript 2.0: @export_enum does not support multiline wrapping using parentheses #58114
    bug topic:gdscript +2
25. Multi-line annotations won't parse #66322
    bug topic:gdscript +2
26. GDScript 2.0: assert() containing line breaks results in an syntax error #66535
    bug confirmed regression topic:gdscript +4
27. Script editor incorrectly placing @warning_ignore when clicikng [Ignore] link on multi-line expression #80174
    bug topic:editor topic:gdscript +3
28. Multiline declarations with mixed tabs and spaces can't be commented out easily #80360
    archived bug topic:editor topic:gdscript +4

Proposals

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1. Highlight the error line in the script editor minimap godot-proposals#987
   topic:editor topic:gdscript +2
2. Line index color of empty lines should be white godot-proposals#1015
   topic:editor topic:gdscript +2
3. Allow second line brackets godot-proposals#1209
   archived topic:gdscript +2
4. Automatically convert all leading spaces into tabs godot-proposals#1241
   archived topic:editor topic:gdscript +3
5. Clicking the line number gutter in the script editor should select that line of code godot-proposals#1247
   topic:editor +1
6. Allow newlines after match condition commas without requiring backslashes at end of each line godot-proposals#2201
   topic:gdscript +1
7. Convert clipboard indentation on paste to match editor settings godot-proposals#3525
   topic:editor +1
8. Improve readabillity of multiline string blocks godot-proposals#5794
   topic:gdscript +1
9. Require the beginning tag of multiline string to be followed by newline godot-proposals#5950
   topic:gdscript +1
10. https://github.com/godotengine/godot-proposals/discussions/9516

Pull requests

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1. Script editor: Convert indentation on paste #28561
   archived enhancement needs testing needs work salvageable topic:editor usability +7
2. remove multiline indexing error #35597
   archived bug topic:gdscript +3
3. Fix enum line number being the line after enum #35976
   archived bug topic:gdscript +3
4. Blank/Comment lines at the beginning are considered "unsafe" #20418 #36084
   archived enhancement topic:gdscript +3
5. skip comments and whitespace when stepping with gdscript debugger #36771
   archived bug topic:gdscript +3
6. Added visual indentation line guides for text editors #38833
   archived enhancement topic:editor topic:gui +4
7. Skip indentation of empty lines when indenting a selection. #41114
   bug topic:editor topic:gui +3
8. Fix line num of enums reported as the line before #41126
   bug topic:gdscript +2
9. [3.2] Quickfix for misleading editor message when redeclaring variables #43019
   bug topic:gdscript +2
10. Fix for incorrect line number warnings when redeclaring variables #43082
    archived bug topic:gdscript +3
11. GDScript: Show error when missing expression after ternary else #52706
    bug topic:gdscript +2
12. GDScript: Support multiline indexing with [] #54227
    bug topic:gdscript +2
13. Add parser support for semicolons after annotation #54852
    bug topic:gdscript +2
14. Allow making multiline annotations in GDScript #58971
    bug enhancement topic:gdscript +3
15. GDScript: Fix multiline and trailing comma for assert #70655
    bug topic:gdscript +2
16. GDScript: Fix and improve annotation parsing #72979
    bug enhancement topic:gdscript +3
17. GDScript: Fix doc comment parsing (newlines and spaces) #75043
    bug topic:editor topic:gdscript +3
18. GDScript: Allow mixed indentation on blank lines #80365
    bug discussion regression topic:gdscript +4

[Anutrix]

Any of this irrelevant in the new GDScript?

[dalexeev]

Any of this irrelevant in the new GDScript?

No idea. @vnen?

[vnen]

I don't know. At one point I'll go through all GDScript issues to see what's fixed but right now I'm not sure.