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Marge Bot pushed to branch master at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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Commits:
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<li>
<strong style="font-weight: 600;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/66e7f57d0fa2fdc87f7ab8b14d530eda7111ac19">66e7f57d</a></strong>
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<span> by Brandon Chinn </span> <i> at 2024-08-01T21:50:58-07:00 </i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 14px; color: #333238; position: relative; font-family: var(--default-mono-font, "GitLab Mono"),"JetBrains Mono","Menlo","DejaVu Sans Mono","Liberation Mono","Consolas","Ubuntu Mono","Courier New","andale mono","lucida console",monospace; word-break: break-all; word-wrap: break-word; background-color: #fbfafd; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dcdcde;'>Implement MultilineStrings (#24390)
This commit adds support for multiline strings, proposed at
https://github.com/ghc-proposals/ghc-proposals/pull/569.
Multiline strings can now be written as:
myString =
"""
this is a
multiline string
"""
The multiline string will have leading indentation stripped away.
Full details of this post-processing may be found at the new
GHC.Parser.String module.
In order to cleanly implement this and maximize reusability, I
broke out the lexing logic for strings out of Lexer.x into a
new GHC.Parser.String module, which lexes strings with any
provided "get next character" function. This also gave us the
opportunity to clean up this logic, and even optimize it a bit.
With this change, parsing string literals now takes 25% less
time and 25% less space.
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compiler/GHC/Driver/Flags.hs
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compiler/GHC/Hs/Lit.hs
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compiler/GHC/Hs/Syn/Type.hs
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compiler/GHC/HsToCore/Match/Literal.hs
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compiler/GHC/Parser.y
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compiler/GHC/Parser/CharClass.hs
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compiler/GHC/Parser/Lexer.x
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compiler/GHC/Parser/String.hs
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compiler/GHC/Rename/Expr.hs
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compiler/Language/Haskell/Syntax/Extension.hs
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compiler/Language/Haskell/Syntax/Lit.hs
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libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs
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