Twine To Yarn Spinner

Converting twine to yarn spinner with regex in VSCode.

(I'm converting from Harlowe - I like Harlowe better because syntax highlighting - but you can use regex for any story format, really; the regexes will just be a little different.)

Note: There'll still be a lot leftover that you need to fix manually. Converting from Twine to Yarn Spinner is a pain in the butt and I would not recommend if/once Yarn Spinner gets a better visual node editor. Until then, I'll be prototyping in Twine... :'(

Regex

For each step, the first line of code is the regex; the second is what it should be replaced with.

1. Convert into proper node syntax

:: (.+?)\n((.|\n(?!\n:: ))*)

title: $1
---
$2
===

2. Place tags properly

title: (.*)\[(.*)\]

title: $1
tags: $2

3. Transform if, else, set, etc

(note: wont work for more than 2 levels of nested parentheses)

\(((.)*?):[ ]?((?:[^)(]+|\((?:[^)(]+|\([^)(]*\))*\))*)\)(\\)?

<<$1 $3>>

4. Get rid of trailing space <<((.)*) >>

<<$1>>

5. Get rid of extraneous colons <<if:

<<if

3. Transform conditionals

• first get all [[]]] so that it's [[]]\n]

\[\[((.)*?)\]\]\]

[[$1]]
]

• then get all bracket after (*)[ to be ()\n[

\(((.)*?)\)\[

($1)
[

• then get all closing brackets to be (*)\n[\n]

\(((.)*?)\)\n\[(([^\[]|\n)*?)\]

($1)
[
$3
]

• then again

\n\]\]

]
]

• then find all else and end with endif

<<else>>\n\[[ \n\t]?((.|\n)*?)\n\]

<<else>>
    $1
<<endif>>

• then find all else-if that don't end with else and endif

^<<else-if((.)*?)>>\n\[[ \n]?((.|\s)*?)\n\]

• then i manually replace through bc for the life of me i cant figure out how to regex an else-if that isn't followed by an else...

<<elseif$1>>
    $3
<<endif>>

• then find all if that dont have endif; endif

(this doesn't really work but idk how to make it better....)

^<<if((.)*?)>>\n\[[ \n]?((.|\s)*?)\n\](?!.*<<else>>)

<<if$1>>
    $3

4. Transform (display:)

<<display "((.)*?)">>[\\]?

[[$1]]

5. Transform markdown

• Get rid of header

### (.+?)

<size=200%>$1

• Get rid of align

=><=((.|\n)*?)<==

Center: $1

Body:

• Italicize

(doesn't include new line incase there are urls for imgs, etc)

\/\/((.)*?)\/\/

<i>$1</i>

• Bold

\*\*((.|\n)*?)\*\*

<b>$1</b>

• Subscript

\^\^((.|\n)*?)\^\^

Subtitle: $1

6. Get rid of of {}

\{[ \n]?((.|\n)*?)[ \n]?\}

$1

7. Get rid of \

((.)*)\\\n

$1

8. Transform span classes outside of options marking them as new options

<span class='red'>((.)*)</span>

<<set-option "new">>
$1
<<unset-option>>

9. Transform img classes

<img src="((.)*)">(</img>)?

Image: $1

10. Transform history:

\(count: \(history: \), "((.)*)"\)

visited("$1")

11. Get rid of passage name unless in a 'set' context

• remove it in and statements

 and \(passage:\)'s name is (not )?"(.)*"

(empty. as in, replace it with nothing)

• replace set context with getter

\(passage:\)'s name

currentTitle()

12. Transform comments

<!-- ((.)*) -->

// $1

13. other useful things

• make indent consistent

^  (?!(\s))

• remove double quotes

"((.)*?),"

$1,