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30 lines
1.0 KiB
Go
30 lines
1.0 KiB
Go
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package hil
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import (
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"github.com/hashicorp/hil/ast"
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"github.com/hashicorp/hil/parser"
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"github.com/hashicorp/hil/scanner"
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)
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// Parse parses the given program and returns an executable AST tree.
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//
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// Syntax errors are returned with error having the dynamic type
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// *parser.ParseError, which gives the caller access to the source position
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// where the error was found, which allows (for example) combining it with
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// a known source filename to add context to the error message.
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func Parse(v string) (ast.Node, error) {
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return ParseWithPosition(v, ast.Pos{Line: 1, Column: 1})
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}
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// ParseWithPosition is like Parse except that it overrides the source
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// row and column position of the first character in the string, which should
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// be 1-based.
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//
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// This can be used when HIL is embedded in another language and the outer
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// parser knows the row and column where the HIL expression started within
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// the overall source file.
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func ParseWithPosition(v string, pos ast.Pos) (ast.Node, error) {
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ch := scanner.Scan(v, pos)
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return parser.Parse(ch)
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}
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