Pre-existing grammar issues

[RedCMD]

Fixing VSCode's YAML TextMate grammar before Tree-sitter arrives

• Consider adopting a new yaml grammar
• Investigate existing tree-sitter grammars
• Repository unmaintained for 6 years
• Fix Markdown FrontMatter integration

VSCode's issues

• Crash when opening 50mb YAML file microsoft/vscode#177
• [yaml] string with = and '{',',' break syntax highlighting microsoft/vscode#4008
• [yaml] multiline strings improperly highlighted microsoft/vscode#6303
• [yaml] highlighting issue of single quotes in a value microsoft/vscode#10746
• Yaml and Markdown yaml front matter doesn't like single digit months or days microsoft/vscode#19960
• YAML language mode for .stylelintrc microsoft/vscode#25709
• YAML Syntax Highlighting Breaks on Large Files microsoft/vscode#34658
• Incorrect auto indent YAML files microsoft/vscode#43424
• [YAML] Syntax highlighting quirk microsoft/vscode#49752
• Yarn.lock should not be a registered filename in yaml language contributes microsoft/vscode#50967
• YAML syntax highlighting has issues wrong when using block literals in markdown front matter microsoft/vscode#59667
• Wrong YAML syntax highlighting microsoft/vscode#69171
• "Move line down" messes up indentation of existing YAML lines microsoft/vscode#105439
• Problem resolving conflicts with YAML files. microsoft/vscode#109605
• [yaml] add space to surrounding pairs microsoft/vscode#112227
• Bracket Pair Colorization for YAML is not working properly microsoft/vscode#140505
• Add support for yaml git diff microsoft/vscode#147599
• YAML (Ansible file type) autoindentation doesn't work microsoft/vscode#148528
• YAML frontmatter hyphens in markdown files are incorrectly scoped/have no scope applied microsoft/vscode#170032
• Jam after modifying yaml file and deleting quotation marks microsoft/vscode#176604
• Consider adopting a new yaml grammar: Built in YAML grammar left-strips the first character of scalars that are not surrounded by quotes microsoft/vscode#180523
• Allow folding of entire YAML structures i.e. documents (---) microsoft/vscode#180848
• When a Markdown file contains a YAML block in a bullet point, comments do not have the right syntax highlighting microsoft/vscode#182458
• VSCode is inserting tabs in yaml instead of spaces microsoft/vscode#192983
• Add support for .yaml-tmlanguage, .yaml-tmpreferences and .yaml-tmtheme file extensions microsoft/vscode#198290
• Disabling Format on Save for YAML Files Does Not Work microsoft/vscode#201752
• Default YAML extension is not .yaml microsoft/vscode#206445
• Code lines are struckthrough and red microsoft/vscode#220022
• Markdown syntax highlighting not working as expected microsoft/vscode#220026
• Markdown for Jekyl is being displayed wrongly as strikethrough microsoft/vscode#221181
• VSCode 1.92 YAML grammar breaks MDX syntax highlighting microsoft/vscode#224862
• Embedded languages syntax highlighting stopped working in 1.92.0 microsoft/vscode#224978
• Code completion doesn't trigger automatically for YAML because most entries are considered "string" microsoft/vscode#239679
• Support boolean type parse in yaml microsoft/vscode#251476

tmbundle's issues

• Incorrect highlighting when colon is used inside yaml literal style textmate/yaml.tmbundle#17
• Incorrect highlighting when { } are used inside YAML literal style textmate/yaml.tmbundle#18
• Problem with doublequote in section  textmate/yaml.tmbundle#24
• highlighting issue with backslash textmate/yaml.tmbundle#25
• Syntax highlighting for block scalars incorrectly highlights invalid strings textmate/yaml.tmbundle#26
• Colons in multi-line should show as string colour textmate/yaml.tmbundle#27
• Multiline string highlight error textmate/yaml.tmbundle#28
• Wrong YAML syntax highlighting in some corner cases for strings textmate/yaml.tmbundle#29
• yaml grammar does not recognize all quotes textmate/yaml.tmbundle#30
• YAML syntax highlighting with multiline string and single quote textmate/yaml.tmbundle#31
• Some dates in front matter (yaml) are not being marked as timestamps textmate/yaml.tmbundle#32
• YAML syntax highlighting fails on empty blocks textmate/yaml.tmbundle#33
• Grammar does not recognize comments with a tab in them textmate/yaml.tmbundle#36
• "|" is not a keywords textmate/yaml.tmbundle#37
• text after "someKey: |" is colorized differently if a leading newline exists. textmate/yaml.tmbundle#38
• yaml grammar recognises some integers as strings (or vice versa?) textmate/yaml.tmbundle#39
• Repository unmaintained for 6 years textmate/yaml.tmbundle#40
• Bug: Indentation indicator after chomping indicator is not recognized, appearing as illegal textmate/yaml.tmbundle#41
• Number keys have a different color textmate/yaml.tmbundle#42
• String with numbers and dots only is interpreted as a number textmate/yaml.tmbundle#43
• First characters seem to be their own tokens textmate/yaml.tmbundle#44

Atom's issues

• Does not respect JSON style YAML. atom/language-yaml#5
• Coloring of strings could be misleading atom/language-yaml#17
• Not ignoring ERB tags in quoted string atom/language-yaml#32
• Add flow sequences and mapping support atom/language-yaml#69
• Introduce error highlighting atom/language-yaml#79
• language-yaml blocks snippet autocompletion atom/language-yaml#96
• Starting a .yaml doc or an .md doc with --- erroneously triggers a new line indentation atom/language-yaml#97
• Adds tab on list (array) atom/language-yaml#98
• No folding for objects with list value without identation atom/language-yaml#99
• .asc PGP armor files getting highlighted as YAML atom/language-yaml#107
• Wrong syntax highlight with multiline strings atom/language-yaml#109
• Settings to allow customTags and other customizations atom/language-yaml#111
• Add detection of Snakefile atom/language-yaml#112
• Autocomplete API? atom/language-yaml#113
• Hash sign breaks highlighting atom/language-yaml#114
• feat: add support for Krmfiles and Kptfiles atom/language-yaml#117
• Remove '---' from firstLineMatch atom/language-yaml#118
• Keys with escaped quotes within are not highlighted correctly atom/language-yaml#119