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path: root/vendor/github.com/tdewolff/parse/position.go
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Diffstat (limited to 'vendor/github.com/tdewolff/parse/position.go')
-rw-r--r--vendor/github.com/tdewolff/parse/position.go79
1 files changed, 0 insertions, 79 deletions
diff --git a/vendor/github.com/tdewolff/parse/position.go b/vendor/github.com/tdewolff/parse/position.go
deleted file mode 100644
index 690fcfa..0000000
--- a/vendor/github.com/tdewolff/parse/position.go
+++ /dev/null
@@ -1,79 +0,0 @@
-package parse
-
-import (
- "fmt"
- "io"
- "strings"
-
- "github.com/tdewolff/parse/buffer"
-)
-
-// Position returns the line and column number for a certain position in a file. It is useful for recovering the position in a file that caused an error.
-// It only treates \n, \r, and \r\n as newlines, which might be different from some languages also recognizing \f, \u2028, and \u2029 to be newlines.
-func Position(r io.Reader, offset int) (line, col int, context string, err error) {
- l := buffer.NewLexer(r)
-
- line = 1
- for {
- c := l.Peek(0)
- if c == 0 {
- col = l.Pos() + 1
- context = positionContext(l, line, col)
- err = l.Err()
- if err == nil {
- err = io.EOF
- }
- return
- }
-
- if offset == l.Pos() {
- col = l.Pos() + 1
- context = positionContext(l, line, col)
- return
- }
-
- if c == '\n' {
- l.Move(1)
- line++
- offset -= l.Pos()
- l.Skip()
- } else if c == '\r' {
- if l.Peek(1) == '\n' {
- if offset == l.Pos()+1 {
- l.Move(1)
- continue
- }
- l.Move(2)
- } else {
- l.Move(1)
- }
- line++
- offset -= l.Pos()
- l.Skip()
- } else {
- l.Move(1)
- }
- }
-}
-
-func positionContext(l *buffer.Lexer, line, col int) (context string) {
- for {
- c := l.Peek(0)
- if c == 0 && l.Err() != nil || c == '\n' || c == '\r' {
- break
- }
- l.Move(1)
- }
-
- // replace unprintable characters by a space
- b := l.Lexeme()
- for i, c := range b {
- if c < 0x20 || c == 0x7F {
- b[i] = ' '
- }
- }
-
- context += fmt.Sprintf("%5d: %s\n", line, string(b))
- context += fmt.Sprintf("%s^", strings.Repeat(" ", col+6))
- return
-}