lix-website/themes/lix/assets/bootstrap/node_modules/sugarss/tokenize.js

'use strict';

exports.__esModule = true;
exports.default = tokenize;
var SINGLE_QUOTE = 39;
var DOUBLE_QUOTE = 34;
var BACKSLASH = 92;
var SLASH = 47;
var NEWLINE = 10;
var SPACE = 32;
var FEED = 12;
var TAB = 9;
var CR = 13;
var OPEN_PARENTHESES = 40;
var CLOSE_PARENTHESES = 41;
var OPEN_CURLY = 123;
var CLOSE_CURLY = 125;
var SEMICOLON = 59;
var ASTERICK = 42;
var COLON = 58;
var AT = 64;
var COMMA = 44;

var RE_AT_END = /[ \n\t\r\f{()'"\\;/]/g;
var RE_NEW_LINE = /[\r\f\n]/g;
var RE_WORD_END = /[ \n\t\r\f(){}:;@!'"\\,]|\/(?=\*)/g;
var RE_BAD_BRACKET = /.[\\/("'\n]/;

function tokenize(input) {
  var tokens = [];
  var css = input.css.valueOf();

  var code = void 0,
      next = void 0,
      quote = void 0,
      lines = void 0,
      last = void 0,
      content = void 0,
      escape = void 0,
      nextLine = void 0,
      nextOffset = void 0,
      escaped = void 0,
      escapePos = void 0,
      prev = void 0,
      n = void 0;

  var length = css.length;
  var offset = -1;
  var line = 1;
  var pos = 0;

  function unclosed(what) {
    throw input.error('Unclosed ' + what, line, pos - offset);
  }

  while (pos < length) {
    code = css.charCodeAt(pos);

    if (code === NEWLINE || code === FEED || code === CR && css.charCodeAt(pos + 1) !== NEWLINE) {
      offset = pos;
      line += 1;
    }

    switch (code) {
      case CR:
        if (css.charCodeAt(pos + 1) === NEWLINE) {
          offset = pos;
          line += 1;
          pos += 1;
          tokens.push(['newline', '\r\n', line - 1]);
        } else {
          tokens.push(['newline', '\r', line - 1]);
        }
        break;

      case FEED:
      case NEWLINE:
        tokens.push(['newline', css.slice(pos, pos + 1), line - 1]);
        break;

      case SPACE:
      case TAB:
        next = pos;
        do {
          next += 1;
          code = css.charCodeAt(next);
        } while (code === SPACE || code === TAB);

        tokens.push(['space', css.slice(pos, next)]);
        pos = next - 1;
        break;

      case OPEN_CURLY:
        tokens.push(['{', '{', line, pos - offset]);
        break;

      case CLOSE_CURLY:
        tokens.push(['}', '}', line, pos - offset]);
        break;

      case COLON:
        tokens.push([':', ':', line, pos - offset]);
        break;

      case SEMICOLON:
        tokens.push([';', ';', line, pos - offset]);
        break;

      case COMMA:
        tokens.push([',', ',', line, pos - offset]);
        break;

      case OPEN_PARENTHESES:
        prev = tokens.length ? tokens[tokens.length - 1][1] : '';
        n = css.charCodeAt(pos + 1);
        if (prev === 'url' && n !== SINGLE_QUOTE && n !== DOUBLE_QUOTE && n !== SPACE && n !== NEWLINE && n !== TAB && n !== FEED && n !== CR) {
          next = pos;
          do {
            escaped = false;
            next = css.indexOf(')', next + 1);
            if (next === -1) unclosed('bracket');
            escapePos = next;
            while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
              escapePos -= 1;
              escaped = !escaped;
            }
          } while (escaped);

          tokens.push(['brackets', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
          pos = next;
        } else {
          next = css.indexOf(')', pos + 1);
          content = css.slice(pos, next + 1);

          if (next === -1 || RE_BAD_BRACKET.test(content)) {
            tokens.push(['(', '(', line, pos - offset]);
          } else {
            tokens.push(['brackets', content, line, pos - offset, line, next - offset]);
            pos = next;
          }
        }

        break;

      case CLOSE_PARENTHESES:
        tokens.push([')', ')', line, pos - offset]);
        break;

      case SINGLE_QUOTE:
      case DOUBLE_QUOTE:
        quote = code === SINGLE_QUOTE ? '\'' : '"';
        next = pos;
        do {
          escaped = false;
          next = css.indexOf(quote, next + 1);
          if (next === -1) unclosed('quote');
          escapePos = next;
          while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
            escapePos -= 1;
            escaped = !escaped;
          }
        } while (escaped);

        content = css.slice(pos, next + 1);
        lines = content.split('\n');
        last = lines.length - 1;

        if (last > 0) {
          nextLine = line + last;
          nextOffset = next - lines[last].length;
        } else {
          nextLine = line;
          nextOffset = offset;
        }

        tokens.push(['string', css.slice(pos, next + 1), line, pos - offset, nextLine, next - nextOffset]);

        offset = nextOffset;
        line = nextLine;
        pos = next;
        break;

      case AT:
        RE_AT_END.lastIndex = pos + 1;
        RE_AT_END.test(css);
        if (RE_AT_END.lastIndex === 0) {
          next = css.length - 1;
        } else {
          next = RE_AT_END.lastIndex - 2;
        }
        tokens.push(['at-word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
        pos = next;
        break;

      case BACKSLASH:
        next = pos;
        escape = true;

        nextLine = line;

        while (css.charCodeAt(next + 1) === BACKSLASH) {
          next += 1;
          escape = !escape;
        }
        code = css.charCodeAt(next + 1);
        if (escape) {
          if (code === CR && css.charCodeAt(next + 2) === NEWLINE) {
            next += 2;
            nextLine += 1;
            nextOffset = next;
          } else if (code === CR || code === NEWLINE || code === FEED) {
            next += 1;
            nextLine += 1;
            nextOffset = next;
          } else {
            next += 1;
          }
        }
        tokens.push(['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
        if (nextLine !== line) {
          line = nextLine;
          offset = nextOffset;
        }
        pos = next;
        break;

      default:
        n = css.charCodeAt(pos + 1);

        if (code === SLASH && n === ASTERICK) {
          next = css.indexOf('*/', pos + 2) + 1;
          if (next === 0) unclosed('comment');

          content = css.slice(pos, next + 1);
          lines = content.split('\n');
          last = lines.length - 1;

          if (last > 0) {
            nextLine = line + last;
            nextOffset = next - lines[last].length;
          } else {
            nextLine = line;
            nextOffset = offset;
          }

          tokens.push(['comment', content, line, pos - offset, nextLine, next - nextOffset]);

          offset = nextOffset;
          line = nextLine;
          pos = next;
        } else if (code === SLASH && n === SLASH) {
          RE_NEW_LINE.lastIndex = pos + 1;
          RE_NEW_LINE.test(css);
          if (RE_NEW_LINE.lastIndex === 0) {
            next = css.length - 1;
          } else {
            next = RE_NEW_LINE.lastIndex - 2;
          }

          content = css.slice(pos, next + 1);

          tokens.push(['comment', content, line, pos - offset, line, next - offset, 'inline']);

          pos = next;
        } else {
          RE_WORD_END.lastIndex = pos + 1;
          RE_WORD_END.test(css);
          if (RE_WORD_END.lastIndex === 0) {
            next = css.length - 1;
          } else {
            next = RE_WORD_END.lastIndex - 2;
          }

          tokens.push(['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
          pos = next;
        }

        break;
    }

    pos++;
  }

  return tokens;
}
module.exports = exports['default'];
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