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package parser
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import (
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"io/fs"
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"asciigoat.org/core/lexer"
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)
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// NewError creates a lexer.Error using a lexer.Position
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func NewError(pos lexer.Position, content, hint string, err error) *lexer.Error {
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return &lexer.Error{
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Line: pos.Line,
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Column: pos.Column,
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Content: content,
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Hint: hint,
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Err: err,
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}
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}
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// ErrPlusPosition returns a copy of the given [lexer.Error]
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// offsetting the Line/Column information.
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func ErrPlusPosition(pos lexer.Position, e *lexer.Error) *lexer.Error {
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pos.Add(lexer.Position{
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Line: e.Line,
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Column: e.Column,
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})
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return NewError(pos, e.Content, e.Hint, e.Err)
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}
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// NewErrIncompleteQuotedString returns a [lexer.Error]
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// indicating the quoted string being parsed wasn't correctly
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// terminated
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func NewErrIncompleteQuotedString(p *TextParser) *lexer.Error {
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return newErrIncomplete(p, "incomplete quoted string")
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}
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// NewErrIncompleteEscaped returns a [lexer.Error]
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// indicating the text being parsed wasn't correctly
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// terminated
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func NewErrIncompleteEscaped(p *TextParser) *lexer.Error {
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return newErrIncomplete(p, "incomplete escaped string")
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}
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func newErrIncomplete(p *TextParser, hint string) *lexer.Error {
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pos, s := p.Emit()
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pos.Add(GetPositionalLength(s))
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return NewError(pos, s, hint, fs.ErrInvalid)
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}
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// NewErrInvalidEscapeSequence returns a [lexer.Error] indicating
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// the specified sequence, at the end of the accepted buffer,
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// is invalid
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func NewErrInvalidEscapeSequence(p *TextParser, seq string) *lexer.Error {
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pos, s := p.Position(), p.String()
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s = s[:len(s)-len(seq)]
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pos.Add(GetPositionalLength(s))
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return NewError(pos, seq, "invalid escape character", fs.ErrInvalid)
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}
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