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[SR-6362] Raw escaping in string literals #48912

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johnno1962 opened this issue Nov 11, 2017 · 4 comments
Closed

[SR-6362] Raw escaping in string literals #48912

johnno1962 opened this issue Nov 11, 2017 · 4 comments
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@johnno1962
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compiler The Swift compiler in itself feature A feature request or implementation literals Feature → expressions: Literals such as an integer or string literal raw string literals Feature → expressions → literals → string literals: Raw string literals swift evolution implemented Flag → feature: A feature that was approved through the Swift evolution process and implemented

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@johnno1962
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Previous ID SR-6362
Radar rdar://problem/47725014
Original Reporter @johnno1962
Type New Feature
Status Closed
Resolution Done
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels New Feature, LanguageFeatureRequest
Assignee @johnno1962
Priority Medium

md5: 0d6a3785983c156c861de08a567e4986

Issue Description:

Often it is inconvenient and opaque entering string literals that are in tended as regex patterns into a swift source.

Taking the lead from python it perhaps a new syntax r"\w+\s+\w" could be added to the swift language. This would be equivalent to " w+ s+ w". The specification required would be that if a string literal is preceded by r then unknown escapes are passed though to the literal as-is including the back-slash character rather than going an error. This would be a very minor change confined to Lexer.cpp that I'll work on tomorrow and present to swift-evolution.
@belkadan
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I think the "r" stands for "raw", not "regex".

@johnno1962
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https://forums.swift.org/t/se-0200-enhancing-string-literals-delimiters-to-support-raw-text/15420/65

@beccadax
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beccadax commented Feb 1, 2019

Just adding a radar number; nothing to see here.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@AnthonyLatsis
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Proposal: SE-0200

@AnthonyLatsis AnthonyLatsis added swift evolution implemented Flag → feature: A feature that was approved through the Swift evolution process and implemented and removed new feature labels Nov 11, 2022
@AnthonyLatsis AnthonyLatsis added the literals Feature → expressions: Literals such as an integer or string literal label Mar 22, 2023
This was referenced Mar 22, 2023
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@AnthonyLatsis AnthonyLatsis added the raw string literals Feature → expressions → literals → string literals: Raw string literals label Mar 22, 2023
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@johnno1962 johnno1962

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compiler The Swift compiler in itself feature A feature request or implementation literals Feature → expressions: Literals such as an integer or string literal raw string literals Feature → expressions → literals → string literals: Raw string literals swift evolution implemented Flag → feature: A feature that was approved through the Swift evolution process and implemented
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@belkadan @beccadax @johnno1962 @AnthonyLatsis