1
0
mirror of https://github.com/strongdm/comply synced 2024-11-16 21:04:54 +00:00
comply/vendor/github.com/yosssi/ace/line.go
2018-05-15 14:13:11 -07:00

118 lines
2.5 KiB
Go

package ace
import (
"fmt"
"strings"
)
const unicodeSpace = 32
const indentTop = 0
// line represents a line of codes.
type line struct {
no int
str string
indent int
tokens []string
opts *Options
file *File
}
// isEmpty returns true if the line is empty.
func (l *line) isEmpty() bool {
return strings.TrimSpace(l.str) == ""
}
// isTopIndent returns true if the line's indent is the top level.
func (l *line) isTopIndent() bool {
return l.indent == indentTop
}
// isHelperMethod returns true if the line is a helper method.
func (l *line) isHelperMethod() bool {
return len(l.tokens) > 1 && l.tokens[0] == equal
}
// isHelperMethodOf returns true if the line is a specified helper method.
func (l *line) isHelperMethodOf(name string) bool {
return l.isHelperMethod() && l.tokens[1] == name
}
// isPlainText returns true if the line is a plain text.
func (l *line) isPlainText() bool {
return len(l.tokens) > 0 && (l.tokens[0] == pipe || l.tokens[0] == doublePipe)
}
// isComment returns true if the line is a comment.
func (l *line) isComment() bool {
return len(l.tokens) > 0 && l.tokens[0] == slash
}
// isHTMLComment returns true if the line is an HTML comment.
func (l *line) isHTMLComment() bool {
return len(l.tokens) > 0 && l.tokens[0] == slash+slash
}
// isAction returns true if the line is an action.
func (l *line) isAction() bool {
str := strings.TrimSpace(l.str)
return strings.HasPrefix(str, l.opts.DelimLeft) && strings.HasSuffix(str, l.opts.DelimRight)
}
// fileName returns the file name.
func (l *line) fileName() string {
return l.file.path + dot + l.opts.Extension
}
// childOf returns true if the line is a child of the element.
func (l *line) childOf(parent element) (bool, error) {
var ok bool
var err error
switch {
case l.isEmpty():
ok = true
case parent.ContainPlainText():
switch {
case parent.Base().ln.indent < l.indent:
ok = true
}
default:
switch {
case l.indent == parent.Base().ln.indent+1:
ok = true
case l.indent > parent.Base().ln.indent+1:
err = fmt.Errorf("the indent is invalid [file: %s][line: %d]", l.fileName(), l.no)
}
}
return ok, err
}
// newLine creates and returns a line.
func newLine(no int, str string, opts *Options, f *File) *line {
return &line{
no: no,
str: str,
indent: indent(str),
tokens: strings.Split(strings.TrimLeft(str, space), space),
opts: opts,
file: f,
}
}
// indent returns the line's indent.
func indent(str string) int {
var i int
for _, b := range str {
if b != unicodeSpace {
break
}
i++
}
return i / 2
}