shell bypass 403
var characterEscape = {
name: 'characterEscape',
tokenize: tokenizeCharacterEscape
}
export default characterEscape
import assert from 'assert'
import asciiPunctuation from '../character/ascii-punctuation.mjs'
import codes from '../character/codes.mjs'
import types from '../constant/types.mjs'
function tokenizeCharacterEscape(effects, ok, nok) {
return start
function start(code) {
assert(code === codes.backslash, 'expected `\\`')
effects.enter(types.characterEscape)
effects.enter(types.escapeMarker)
effects.consume(code)
effects.exit(types.escapeMarker)
return open
}
function open(code) {
if (asciiPunctuation(code)) {
effects.enter(types.characterEscapeValue)
effects.consume(code)
effects.exit(types.characterEscapeValue)
effects.exit(types.characterEscape)
return ok
}
return nok(code)
}
}