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56 lines
963 B
Go
56 lines
963 B
Go
package shell
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import (
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"fmt"
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"io"
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)
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type LineParameters struct{}
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func (p *LineParameters) SubParsers() []Parser {
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return []Parser{
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&BaseParser{
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parameters: &StatementParameters{},
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},
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}
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}
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func (p *LineParameters) Supports(charsBefore []rune, r rune) bool {
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return true
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}
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func (p *LineParameters) ShouldLeave(charsBefore []rune, r rune) bool {
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if r == '\n' {
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return countBackslashSuffixes(charsBefore)%2 == 0
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}
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return false
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}
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func (p *LineParameters) MakeToken() Token {
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return &Line{}
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}
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type Line struct {
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BaseToken
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}
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func (l *Line) Evaluate(state State, stdin io.Reader, stdout io.Writer, stderr io.Writer) uint8 {
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var retval uint8 = 0
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for _, token := range l.Tokens() {
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if eval, ok := token.(Evalable); ok {
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retval = eval.Evaluate(state, stdin, stdout, stderr)
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} else {
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stderr.Write([]byte(
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fmt.Sprintf(
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"shell: Syntax error near unexpected token: %s",
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token.String(),
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),
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))
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}
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}
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return retval
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}
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