Merge branch 'pr-amery-lexer' into next-amery

2023-08-29 15:36:31 +00:00
1 changed files with 0 additions and 66 deletions
@@ -1,66 +0,0 @@
 package lexer
 import "fmt"
 // Position indicates a line and column pair on a file.
 // Counting starts at 1.
 type Position struct {
 	Line   int
 	Column int
 }
 // String generates a pretty "(Line, Column)"" representation of the Position
 func (p Position) String() string {
 	if p.Line == 0 {
 		p.Reset()
 	}
 	return fmt.Sprintf("(%v, %v)", p.Line, p.Column)
 }
 // GoString generates a string representation of the Position for %#v usage
 func (p Position) GoString() string {
 	if p.Line == 0 {
 		p.Reset()
 	}
 	return fmt.Sprintf("lexer.Position{%v, %v}", p.Line, p.Column)
 }
 // Reset places a position at (1,1)
 func (p *Position) Reset() {
 	p.Line, p.Column = 1, 1
 }
 // Step moves the column one place
 func (p *Position) Step() {
 	if p.Line == 0 {
 		p.Reset()
 	}
 	p.Column++
 }
 // StepN moves the column N places forward
 func (p *Position) StepN(n int) {
 	if p.Line == 0 {
 		p.Reset()
 	}
 	switch {
 	case n > 0:
 		p.Column += n
 	default:
 		panic(fmt.Errorf("invalid %v increment", n))
 	}
 }
 // StepLine moves position to the start of the next line
 func (p *Position) StepLine() {
 	if p.Line == 0 {
 		p.Reset()
 	}
 	p.Line++
 	p.Column = 1
 }