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Shell: Add support for 'immediate' expressions as variable substitutions

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This commit adds a few basic variable substitution operations:
- length
    Find the length of a string or a list
- length_across
    Find the lengths of things inside a list
- remove_{suffix,prefix}
    Remove a suffix or a prefix from all the passed values
- regex_replace
    Replace all matches of a given regex with a given template
- split
    Split the given string with the given delimiter (or to its
    code points if the delimiter is empty)
- concat_lists
    concatenates any given lists into one

Closes #4316 (the ancient version of this same feature)
This commit is contained in:
AnotherTest 2021-03-05 16:33:23 +03:30 • committed by Andreas Kling
parent a303b69caa
commit a45b2ea6fb
16 changed files with 911 additions and 37 deletions
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2
Userland/Shell/NodeVisitor.h
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@ -53,6 +53,7 @@ public:
virtual void visit(const AST::HistoryEvent*);
virtual void visit(const AST::Execute*);
virtual void visit(const AST::IfCond*);
virtual void visit(const AST::ImmediateExpression*);
virtual void visit(const AST::Join*);
virtual void visit(const AST::MatchExpr*);
virtual void visit(const AST::Or*);
@ -68,6 +69,7 @@ public:
virtual void visit(const AST::StringLiteral*);
virtual void visit(const AST::StringPartCompose*);
virtual void visit(const AST::SyntaxError*);
virtual void visit(const AST::SyntheticNode*);
virtual void visit(const AST::Tilde*);
virtual void visit(const AST::VariableDeclarations*);
virtual void visit(const AST::WriteAppendRedirection*);