Exactprinter & modification framework, take 2 - #12316

Draft

leana8959 wants to merge 63 commits into

haskell:masterfrom

leana8959:transform-fields-poc

Commits on Jul 24, 2026

feat: implement comment parser
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e170fc8
hide internal comment manipulating functions until API is stable
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6624ebf
fix lint issues
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47e8c45

Commits on Aug 17, 2026

Retain comments in field parser
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c8ab7f2
document types and their methods
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f29a92f
rewrite mapComments and mapCommentData using lens
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6ea1499
remove unused instances
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8ff46fd
remove strict either
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968eace
run forumolu
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47570de
remove use of Functor in commentsAfter
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18e8202
don't expose cabal-parsec-debug flag
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6463836
fix pragma in testsuite
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c599c87
clean up pragmas, reduce diff, reword wonky comments
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1e24ac2
add ascii flowchart of the lexer
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9993557
implement basic idea of field transformation
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e0d67b9
Merge branch 'exact-pp-leana' into transform-fields
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5c56bf9
replace Newtype class with Coerce class
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a65156d
fix unterminated pragma
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c3dafbd
fix newtype class in parser tests
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b21a4da
add a pass to turn name to lower case
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28902d8
accept casing in concrete parsing
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b3e55f1
document the reason of orFallback
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3c8c107
add comment handling in modification functions
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f8d5fd0
update comment handling in test suite
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777b11a
add comment in example
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e76eb1e

Commits on Aug 18, 2026

add export list to transform module
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ccda102
make modifyValueList partial
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04742a0
make modifyValueAtomAla partial
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10772d5
allow using partial modification function in modify focuses
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dbbffad
add instances to fix test
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de0d96b
update todos
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81aeb3e
remove project files
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af418ce
add todos
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855be0c
add export list for ExactPretty
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4ea6ff7
add proper position shifting logic in new field
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9a6011d
fix colonPos calculation
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5e3f24d
remove todo
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6974966
add a basic add section function
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43ad1b3
make prependValueListBS partial
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6b0974d
add a function to prepend function list
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c1e2828
move code around
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bae4047
clean up imports
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8e724e2

Commits on Aug 20, 2026

implement example formatter to test out the idea
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c80115c
add a function to run the formatter
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cae82ce
run the build-depends formatter as an example
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30ae685
add shared context to edit functions
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635d9e1
move code around, remove dead code
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9b493f2
implement sectionArgBS
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4f02cf8
refactor using monad instance
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5b1e003
run formatter
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e510c6c
liftA2 is cool
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9ec34ae
move parsec orphan instance to its module
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617f14d
update todo on labels
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ee8d9d3
reuse transform functions to format
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4ee6831
proper formatting example with multiple sections
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684ee41

Commits on Aug 26, 2026

add modifyConfitionConfVar
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25cd0eb
document position handling
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9ed5478
run formatter
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566eeb9

Commits on Sep 4, 2026

fix test suite
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0777da7
add fields to example
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0aac25c
demonstrate printing
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df5d3fe
rip out formatter poc
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73a19d9

Commits on Sep 7, 2026

clean up warnings
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f9a52ad