nv-lex-tok-escapedeprecated

nv-lex-tok-escape =============== - nv-lex-tok-escape handle escape in quoted-src-string - auto recover of invalid \x \u \o - its a simple version of nv-char-escape

Usage no npm install needed!

<script type="module">
  import nvLexTokEscape from 'https://cdn.skypack.dev/nv-lex-tok-escape';
</script>

README

nv-lex-tok-escape

  • nv-lex-tok-escape handle escape in quoted-src-string
  • auto recover of invalid \x \u \o
  • its a simple version of nv-char-escape

install

  • npm install nv-lex-tok-escape

usage

const {parse,parse_from_src} = require("nv-lex-tok-escape");

example

from_str

    //content-of-quoted-source
    var src = `b\\v@\\u0000@\\u0001\\u0002@\\\\@\\x00@\\x00\\x01@\\0\\01\\123@\\A@\\A\\B`


    parse_from_src(src)


    > parse_from_src(src)
    [
      'b',    '\x0B', '@',    '\x00',
      '@',    '\x01', '\x02', '@',
      '\\',   '@',    '\x00', '@',
      '\x00', '\x01', '@',    '\x00',
      '\x01', 'S',    '@',    'A',
      '@',    'A',    'B'
    ]
    > '\123'
    'S'
    >

from toks

   const lex_wchar  = require("nv-lex-tok-wchar");

   var r    = lex_wchar.parse_from_src(src);
   var toks = r.toks ;
   > parse(toks)
    [
      'b',    '\x0B', '@',    '\x00',
      '@',    '\x01', '\x02', '@',
      '\\',   '@',    '\x00', '@',
      '\x00', '\x01', '@',    '\x00',
      '\x01', 'S',    '@',    'A',
      '@',    'A',    'B'
    ]
    >

METHODS

Mach

mach.input(tok)
mach.lefted_
mach.cache
mach.state

Esc

esc.is_escc
esc.maybe_o
esc.maybe_u
esc.maybe_x
esc.should_eat
esc.stringify
esc.esc
esc.raw

APIS

    {
      consts: {
        CHAR_UNESC_DICT: { b: '\b', f: '\f', n: '\n', r: '\r', t: '\t', v: '\x0B' },
        CHAR_UNESC_MD: {
          '\b': 'b',
          '\f': 'f',
          '\n': 'n',
          '\r': 'r',
          '\t': 't',
          '\x0B': 'v'
        },
        CHAR_ESC_DICT: {
          '\b': '\\b',
          '\f': '\\f',
          '\n': '\\n',
          '\r': '\\r',
          '\t': '\\t',
          '\x0B': '\\v',
          '\\': '\\\\'
        },
        ESC_EAT: { '\n': '', '\r': '', '�': '', '�': '' }
      },
      cmmn: {
        Esc: [class Esc],  
        unescx: [Function: unescx],
        unescu: [Function: unescu],
        unesco: [Function: unesco]
      },
      _mach: {
        STATES: {
          '0': 'init',
          '1': 'x',
          '2': 'o',
          '3': 'u',
          init: 0,
          x: 1,
          o: 2,
          u: 3
        },
        Mach: [class Mach],
        gen: [GeneratorFunction: gen]
      },
      Mach: [class Mach],
      parse: [Function: parse],
      parse_from_src: [Function: parse_from_src]
    }

LICENSE

  • ISC