Fix.

node_modules/cssstyle/lib/parsers.js

@@ -0,0 +1,697 @@
+/*********************************************************************
+ * These are commonly used parsers for CSS Values they take a string *
+ * to parse and return a string after it's been converted, if needed *
+ ********************************************************************/
+'use strict';
+
+const namedColors = require('./named_colors.json');
+
+exports.TYPES = {
+  INTEGER: 1,
+  NUMBER: 2,
+  LENGTH: 3,
+  PERCENT: 4,
+  URL: 5,
+  COLOR: 6,
+  STRING: 7,
+  ANGLE: 8,
+  KEYWORD: 9,
+  NULL_OR_EMPTY_STR: 10,
+};
+
+// rough regular expressions
+var integerRegEx = /^[-+]?[0-9]+$/;
+var numberRegEx = /^[-+]?[0-9]*\.[0-9]+$/;
+var lengthRegEx = /^(0|[-+]?[0-9]*\.?[0-9]+(in|cm|em|mm|pt|pc|px|ex|rem|vh|vw))$/;
+var percentRegEx = /^[-+]?[0-9]*\.?[0-9]+%$/;
+var urlRegEx = /^url\(\s*([^)]*)\s*\)$/;
+var stringRegEx = /^("[^"]*"|'[^']*')$/;
+var colorRegEx1 = /^#[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]([0-9a-fA-F][0-9a-fA-F][0-9a-fA-F])?$/;
+var colorRegEx2 = /^rgb\(([^)]*)\)$/;
+var colorRegEx3 = /^rgba\(([^)]*)\)$/;
+var colorRegEx4 = /^hsla?\(\s*(-?\d+|-?\d*.\d+)\s*,\s*(-?\d+|-?\d*.\d+)%\s*,\s*(-?\d+|-?\d*.\d+)%\s*(,\s*(-?\d+|-?\d*.\d+)\s*)?\)/;
+var angleRegEx = /^([-+]?[0-9]*\.?[0-9]+)(deg|grad|rad)$/;
+
+// This will return one of the above types based on the passed in string
+exports.valueType = function valueType(val) {
+  if (val === '' || val === null) {
+    return exports.TYPES.NULL_OR_EMPTY_STR;
+  }
+  if (typeof val === 'number') {
+    val = val.toString();
+  }
+
+  if (typeof val !== 'string') {
+    return undefined;
+  }
+
+  if (integerRegEx.test(val)) {
+    return exports.TYPES.INTEGER;
+  }
+  if (numberRegEx.test(val)) {
+    return exports.TYPES.NUMBER;
+  }
+  if (lengthRegEx.test(val)) {
+    return exports.TYPES.LENGTH;
+  }
+  if (percentRegEx.test(val)) {
+    return exports.TYPES.PERCENT;
+  }
+  if (urlRegEx.test(val)) {
+    return exports.TYPES.URL;
+  }
+  if (stringRegEx.test(val)) {
+    return exports.TYPES.STRING;
+  }
+  if (angleRegEx.test(val)) {
+    return exports.TYPES.ANGLE;
+  }
+  if (colorRegEx1.test(val)) {
+    return exports.TYPES.COLOR;
+  }
+  var res = colorRegEx2.exec(val);
+  var parts;
+  if (res !== null) {
+    parts = res[1].split(/\s*,\s*/);
+    if (parts.length !== 3) {
+      return undefined;
+    }
+    if (
+      parts.every(percentRegEx.test.bind(percentRegEx)) ||
+      parts.every(integerRegEx.test.bind(integerRegEx))
+    ) {
+      return exports.TYPES.COLOR;
+    }
+    return undefined;
+  }
+  res = colorRegEx3.exec(val);
+  if (res !== null) {
+    parts = res[1].split(/\s*,\s*/);
+    if (parts.length !== 4) {
+      return undefined;
+    }
+    if (
+      parts.slice(0, 3).every(percentRegEx.test.bind(percentRegEx)) ||
+      parts.every(integerRegEx.test.bind(integerRegEx))
+    ) {
+      if (numberRegEx.test(parts[3])) {
+        return exports.TYPES.COLOR;
+      }
+    }
+    return undefined;
+  }
+
+  if (colorRegEx4.test(val)) {
+    return exports.TYPES.COLOR;
+  }
+
+  // could still be a color, one of the standard keyword colors
+  val = val.toLowerCase();
+
+  if (namedColors.includes(val)) {
+    return exports.TYPES.COLOR;
+  }
+
+  switch (val) {
+    // the following are deprecated in CSS3
+    case 'activeborder':
+    case 'activecaption':
+    case 'appworkspace':
+    case 'background':
+    case 'buttonface':
+    case 'buttonhighlight':
+    case 'buttonshadow':
+    case 'buttontext':
+    case 'captiontext':
+    case 'graytext':
+    case 'highlight':
+    case 'highlighttext':
+    case 'inactiveborder':
+    case 'inactivecaption':
+    case 'inactivecaptiontext':
+    case 'infobackground':
+    case 'infotext':
+    case 'menu':
+    case 'menutext':
+    case 'scrollbar':
+    case 'threeddarkshadow':
+    case 'threedface':
+    case 'threedhighlight':
+    case 'threedlightshadow':
+    case 'threedshadow':
+    case 'window':
+    case 'windowframe':
+    case 'windowtext':
+      return exports.TYPES.COLOR;
+    default:
+      return exports.TYPES.KEYWORD;
+  }
+};
+
+exports.parseInteger = function parseInteger(val) {
+  var type = exports.valueType(val);
+  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+    return val;
+  }
+  if (type !== exports.TYPES.INTEGER) {
+    return undefined;
+  }
+  return String(parseInt(val, 10));
+};
+
+exports.parseNumber = function parseNumber(val) {
+  var type = exports.valueType(val);
+  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+    return val;
+  }
+  if (type !== exports.TYPES.NUMBER && type !== exports.TYPES.INTEGER) {
+    return undefined;
+  }
+  return String(parseFloat(val));
+};
+
+exports.parseLength = function parseLength(val) {
+  if (val === 0 || val === '0') {
+    return '0px';
+  }
+  var type = exports.valueType(val);
+  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+    return val;
+  }
+  if (type !== exports.TYPES.LENGTH) {
+    return undefined;
+  }
+  return val;
+};
+
+exports.parsePercent = function parsePercent(val) {
+  if (val === 0 || val === '0') {
+    return '0%';
+  }
+  var type = exports.valueType(val);
+  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+    return val;
+  }
+  if (type !== exports.TYPES.PERCENT) {
+    return undefined;
+  }
+  return val;
+};
+
+// either a length or a percent
+exports.parseMeasurement = function parseMeasurement(val) {
+  var length = exports.parseLength(val);
+  if (length !== undefined) {
+    return length;
+  }
+  return exports.parsePercent(val);
+};
+
+exports.parseUrl = function parseUrl(val) {
+  var type = exports.valueType(val);
+  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+    return val;
+  }
+  var res = urlRegEx.exec(val);
+  // does it match the regex?
+  if (!res) {
+    return undefined;
+  }
+  var str = res[1];
+  // if it starts with single or double quotes, does it end with the same?
+  if ((str[0] === '"' || str[0] === "'") && str[0] !== str[str.length - 1]) {
+    return undefined;
+  }
+  if (str[0] === '"' || str[0] === "'") {
+    str = str.substr(1, str.length - 2);
+  }
+
+  var i;
+  for (i = 0; i < str.length; i++) {
+    switch (str[i]) {
+      case '(':
+      case ')':
+      case ' ':
+      case '\t':
+      case '\n':
+      case "'":
+      case '"':
+        return undefined;
+      case '\\':
+        i++;
+        break;
+    }
+  }
+
+  return 'url(' + str + ')';
+};
+
+exports.parseString = function parseString(val) {
+  var type = exports.valueType(val);
+  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+    return val;
+  }
+  if (type !== exports.TYPES.STRING) {
+    return undefined;
+  }
+  var i;
+  for (i = 1; i < val.length - 1; i++) {
+    switch (val[i]) {
+      case val[0]:
+        return undefined;
+      case '\\':
+        i++;
+        while (i < val.length - 1 && /[0-9A-Fa-f]/.test(val[i])) {
+          i++;
+        }
+        break;
+    }
+  }
+  if (i >= val.length) {
+    return undefined;
+  }
+  return val;
+};
+
+exports.parseColor = function parseColor(val) {
+  var type = exports.valueType(val);
+  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+    return val;
+  }
+  var red,
+    green,
+    blue,
+    hue,
+    saturation,
+    lightness,
+    alpha = 1;
+  var parts;
+  var res = colorRegEx1.exec(val);
+  // is it #aaa or #ababab
+  if (res) {
+    var hex = val.substr(1);
+    if (hex.length === 3) {
+      hex = hex[0] + hex[0] + hex[1] + hex[1] + hex[2] + hex[2];
+    }
+    red = parseInt(hex.substr(0, 2), 16);
+    green = parseInt(hex.substr(2, 2), 16);
+    blue = parseInt(hex.substr(4, 2), 16);
+    return 'rgb(' + red + ', ' + green + ', ' + blue + ')';
+  }
+
+  res = colorRegEx2.exec(val);
+  if (res) {
+    parts = res[1].split(/\s*,\s*/);
+    if (parts.length !== 3) {
+      return undefined;
+    }
+    if (parts.every(percentRegEx.test.bind(percentRegEx))) {
+      red = Math.floor((parseFloat(parts[0].slice(0, -1)) * 255) / 100);
+      green = Math.floor((parseFloat(parts[1].slice(0, -1)) * 255) / 100);
+      blue = Math.floor((parseFloat(parts[2].slice(0, -1)) * 255) / 100);
+    } else if (parts.every(integerRegEx.test.bind(integerRegEx))) {
+      red = parseInt(parts[0], 10);
+      green = parseInt(parts[1], 10);
+      blue = parseInt(parts[2], 10);
+    } else {
+      return undefined;
+    }
+    red = Math.min(255, Math.max(0, red));
+    green = Math.min(255, Math.max(0, green));
+    blue = Math.min(255, Math.max(0, blue));
+    return 'rgb(' + red + ', ' + green + ', ' + blue + ')';
+  }
+
+  res = colorRegEx3.exec(val);
+  if (res) {
+    parts = res[1].split(/\s*,\s*/);
+    if (parts.length !== 4) {
+      return undefined;
+    }
+    if (parts.slice(0, 3).every(percentRegEx.test.bind(percentRegEx))) {
+      red = Math.floor((parseFloat(parts[0].slice(0, -1)) * 255) / 100);
+      green = Math.floor((parseFloat(parts[1].slice(0, -1)) * 255) / 100);
+      blue = Math.floor((parseFloat(parts[2].slice(0, -1)) * 255) / 100);
+      alpha = parseFloat(parts[3]);
+    } else if (parts.slice(0, 3).every(integerRegEx.test.bind(integerRegEx))) {
+      red = parseInt(parts[0], 10);
+      green = parseInt(parts[1], 10);
+      blue = parseInt(parts[2], 10);
+      alpha = parseFloat(parts[3]);
+    } else {
+      return undefined;
+    }
+    if (isNaN(alpha)) {
+      alpha = 1;
+    }
+    red = Math.min(255, Math.max(0, red));
+    green = Math.min(255, Math.max(0, green));
+    blue = Math.min(255, Math.max(0, blue));
+    alpha = Math.min(1, Math.max(0, alpha));
+    if (alpha === 1) {
+      return 'rgb(' + red + ', ' + green + ', ' + blue + ')';
+    }
+    return 'rgba(' + red + ', ' + green + ', ' + blue + ', ' + alpha + ')';
+  }
+
+  res = colorRegEx4.exec(val);
+  if (res) {
+    const [, _hue, _saturation, _lightness, _alphaString = ''] = res;
+    const _alpha = parseFloat(_alphaString.replace(',', '').trim());
+    if (!_hue || !_saturation || !_lightness) {
+      return undefined;
+    }
+    hue = parseFloat(_hue);
+    saturation = parseInt(_saturation, 10);
+    lightness = parseInt(_lightness, 10);
+    if (_alpha && numberRegEx.test(_alpha)) {
+      alpha = parseFloat(_alpha);
+    }
+    if (!_alphaString || alpha === 1) {
+      return 'hsl(' + hue + ', ' + saturation + '%, ' + lightness + '%)';
+    }
+    return 'hsla(' + hue + ', ' + saturation + '%, ' + lightness + '%, ' + alpha + ')';
+  }
+
+  if (type === exports.TYPES.COLOR) {
+    return val;
+  }
+  return undefined;
+};
+
+exports.parseAngle = function parseAngle(val) {
+  var type = exports.valueType(val);
+  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+    return val;
+  }
+  if (type !== exports.TYPES.ANGLE) {
+    return undefined;
+  }
+  var res = angleRegEx.exec(val);
+  var flt = parseFloat(res[1]);
+  if (res[2] === 'rad') {
+    flt *= 180 / Math.PI;
+  } else if (res[2] === 'grad') {
+    flt *= 360 / 400;
+  }
+
+  while (flt < 0) {
+    flt += 360;
+  }
+  while (flt > 360) {
+    flt -= 360;
+  }
+  return flt + 'deg';
+};
+
+exports.parseKeyword = function parseKeyword(val, valid_keywords) {
+  var type = exports.valueType(val);
+  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+    return val;
+  }
+  if (type !== exports.TYPES.KEYWORD) {
+    return undefined;
+  }
+  val = val.toString().toLowerCase();
+  var i;
+  for (i = 0; i < valid_keywords.length; i++) {
+    if (valid_keywords[i].toLowerCase() === val) {
+      return valid_keywords[i];
+    }
+  }
+  return undefined;
+};
+
+// utility to translate from border-width to borderWidth
+var dashedToCamelCase = function(dashed) {
+  var i;
+  var camel = '';
+  var nextCap = false;
+  for (i = 0; i < dashed.length; i++) {
+    if (dashed[i] !== '-') {
+      camel += nextCap ? dashed[i].toUpperCase() : dashed[i];
+      nextCap = false;
+    } else {
+      nextCap = true;
+    }
+  }
+  return camel;
+};
+exports.dashedToCamelCase = dashedToCamelCase;
+
+var is_space = /\s/;
+var opening_deliminators = ['"', "'", '('];
+var closing_deliminators = ['"', "'", ')'];
+// this splits on whitespace, but keeps quoted and parened parts together
+var getParts = function(str) {
+  var deliminator_stack = [];
+  var length = str.length;
+  var i;
+  var parts = [];
+  var current_part = '';
+  var opening_index;
+  var closing_index;
+  for (i = 0; i < length; i++) {
+    opening_index = opening_deliminators.indexOf(str[i]);
+    closing_index = closing_deliminators.indexOf(str[i]);
+    if (is_space.test(str[i])) {
+      if (deliminator_stack.length === 0) {
+        if (current_part !== '') {
+          parts.push(current_part);
+        }
+        current_part = '';
+      } else {
+        current_part += str[i];
+      }
+    } else {
+      if (str[i] === '\\') {
+        i++;
+        current_part += str[i];
+      } else {
+        current_part += str[i];
+        if (
+          closing_index !== -1 &&
+          closing_index === deliminator_stack[deliminator_stack.length - 1]
+        ) {
+          deliminator_stack.pop();
+        } else if (opening_index !== -1) {
+          deliminator_stack.push(opening_index);
+        }
+      }
+    }
+  }
+  if (current_part !== '') {
+    parts.push(current_part);
+  }
+  return parts;
+};
+
+/*
+ * this either returns undefined meaning that it isn't valid
+ * or returns an object where the keys are dashed short
+ * hand properties and the values are the values to set
+ * on them
+ */
+exports.shorthandParser = function parse(v, shorthand_for) {
+  var obj = {};
+  var type = exports.valueType(v);
+  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+    Object.keys(shorthand_for).forEach(function(property) {
+      obj[property] = '';
+    });
+    return obj;
+  }
+
+  if (typeof v === 'number') {
+    v = v.toString();
+  }
+
+  if (typeof v !== 'string') {
+    return undefined;
+  }
+
+  if (v.toLowerCase() === 'inherit') {
+    return {};
+  }
+  var parts = getParts(v);
+  var valid = true;
+  parts.forEach(function(part, i) {
+    var part_valid = false;
+    Object.keys(shorthand_for).forEach(function(property) {
+      if (shorthand_for[property].isValid(part, i)) {
+        part_valid = true;
+        obj[property] = part;
+      }
+    });
+    valid = valid && part_valid;
+  });
+  if (!valid) {
+    return undefined;
+  }
+  return obj;
+};
+
+exports.shorthandSetter = function(property, shorthand_for) {
+  return function(v) {
+    var obj = exports.shorthandParser(v, shorthand_for);
+    if (obj === undefined) {
+      return;
+    }
+    //console.log('shorthandSetter for:', property, 'obj:', obj);
+    Object.keys(obj).forEach(function(subprop) {
+      // in case subprop is an implicit property, this will clear
+      // *its* subpropertiesX
+      var camel = dashedToCamelCase(subprop);
+      this[camel] = obj[subprop];
+      // in case it gets translated into something else (0 -> 0px)
+      obj[subprop] = this[camel];
+      this.removeProperty(subprop);
+      // don't add in empty properties
+      if (obj[subprop] !== '') {
+        this._values[subprop] = obj[subprop];
+      }
+    }, this);
+    Object.keys(shorthand_for).forEach(function(subprop) {
+      if (!obj.hasOwnProperty(subprop)) {
+        this.removeProperty(subprop);
+        delete this._values[subprop];
+      }
+    }, this);
+    // in case the value is something like 'none' that removes all values,
+    // check that the generated one is not empty, first remove the property
+    // if it already exists, then call the shorthandGetter, if it's an empty
+    // string, don't set the property
+    this.removeProperty(property);
+    var calculated = exports.shorthandGetter(property, shorthand_for).call(this);
+    if (calculated !== '') {
+      this._setProperty(property, calculated);
+    }
+  };
+};
+
+exports.shorthandGetter = function(property, shorthand_for) {
+  return function() {
+    if (this._values[property] !== undefined) {
+      return this.getPropertyValue(property);
+    }
+    return Object.keys(shorthand_for)
+      .map(function(subprop) {
+        return this.getPropertyValue(subprop);
+      }, this)
+      .filter(function(value) {
+        return value !== '';
+      })
+      .join(' ');
+  };
+};
+
+// isValid(){1,4} | inherit
+// if one, it applies to all
+// if two, the first applies to the top and bottom, and the second to left and right
+// if three, the first applies to the top, the second to left and right, the third bottom
+// if four, top, right, bottom, left
+exports.implicitSetter = function(property_before, property_after, isValid, parser) {
+  property_after = property_after || '';
+  if (property_after !== '') {
+    property_after = '-' + property_after;
+  }
+  var part_names = ['top', 'right', 'bottom', 'left'];
+
+  return function(v) {
+    if (typeof v === 'number') {
+      v = v.toString();
+    }
+    if (typeof v !== 'string') {
+      return undefined;
+    }
+    var parts;
+    if (v.toLowerCase() === 'inherit' || v === '') {
+      parts = [v];
+    } else {
+      parts = getParts(v);
+    }
+    if (parts.length < 1 || parts.length > 4) {
+      return undefined;
+    }
+
+    if (!parts.every(isValid)) {
+      return undefined;
+    }
+
+    parts = parts.map(function(part) {
+      return parser(part);
+    });
+    this._setProperty(property_before + property_after, parts.join(' '));
+    if (parts.length === 1) {
+      parts[1] = parts[0];
+    }
+    if (parts.length === 2) {
+      parts[2] = parts[0];
+    }
+    if (parts.length === 3) {
+      parts[3] = parts[1];
+    }
+
+    for (var i = 0; i < 4; i++) {
+      var property = property_before + '-' + part_names[i] + property_after;
+      this.removeProperty(property);
+      if (parts[i] !== '') {
+        this._values[property] = parts[i];
+      }
+    }
+    return v;
+  };
+};
+
+//
+//  Companion to implicitSetter, but for the individual parts.
+//  This sets the individual value, and checks to see if all four
+//  sub-parts are set.  If so, it sets the shorthand version and removes
+//  the individual parts from the cssText.
+//
+exports.subImplicitSetter = function(prefix, part, isValid, parser) {
+  var property = prefix + '-' + part;
+  var subparts = [prefix + '-top', prefix + '-right', prefix + '-bottom', prefix + '-left'];
+
+  return function(v) {
+    if (typeof v === 'number') {
+      v = v.toString();
+    }
+    if (typeof v !== 'string') {
+      return undefined;
+    }
+    if (!isValid(v)) {
+      return undefined;
+    }
+    v = parser(v);
+    this._setProperty(property, v);
+    var parts = [];
+    for (var i = 0; i < 4; i++) {
+      if (this._values[subparts[i]] == null || this._values[subparts[i]] === '') {
+        break;
+      }
+      parts.push(this._values[subparts[i]]);
+    }
+    if (parts.length === 4) {
+      for (i = 0; i < 4; i++) {
+        this.removeProperty(subparts[i]);
+        this._values[subparts[i]] = parts[i];
+      }
+      this._setProperty(prefix, parts.join(' '));
+    }
+    return v;
+  };
+};
+
+var camel_to_dashed = /[A-Z]/g;
+var first_segment = /^\([^-]\)-/;
+var vendor_prefixes = ['o', 'moz', 'ms', 'webkit'];
+exports.camelToDashed = function(camel_case) {
+  var match;
+  var dashed = camel_case.replace(camel_to_dashed, '-$&').toLowerCase();
+  match = dashed.match(first_segment);
+  if (match && vendor_prefixes.indexOf(match[1]) !== -1) {
+    dashed = '-' + dashed;
+  }
+  return dashed;
+};