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/**
* This file contains information about the options that the Parser carries
* around with it while parsing. Data is held in an `Options` object, and when
* recursing, a new `Options` object can be created with the `.with*` and
* `.reset` functions.
*/
/**
* This is the main options class. It contains the style, size, color, and font
* of the current parse level. It also contains the style and size of the parent
* parse level, so size changes can be handled efficiently.
*
* Each of the `.with*` and `.reset` functions passes its current style and size
* as the parentStyle and parentSize of the new options class, so parent
* handling is taken care of automatically.
*/
function Options(data) {
this.style = data.style;
this.color = data.color;
this.size = data.size;
this.phantom = data.phantom;
this.font = data.font;
if (data.parentStyle === undefined) {
this.parentStyle = data.style;
} else {
this.parentStyle = data.parentStyle;
}
if (data.parentSize === undefined) {
this.parentSize = data.size;
} else {
this.parentSize = data.parentSize;
}
}
/**
* Returns a new options object with the same properties as "this". Properties
* from "extension" will be copied to the new options object.
*/
Options.prototype.extend = function(extension) {
var data = {
style: this.style,
size: this.size,
color: this.color,
parentStyle: this.style,
parentSize: this.size,
phantom: this.phantom,
font: this.font,
};
for (var key in extension) {
if (extension.hasOwnProperty(key)) {
data[key] = extension[key];
}
}
return new Options(data);
};
/**
* Create a new options object with the given style.
*/
Options.prototype.withStyle = function(style) {
return this.extend({
style: style,
});
};
/**
* Create a new options object with the given size.
*/
Options.prototype.withSize = function(size) {
return this.extend({
size: size,
});
};
/**
* Create a new options object with the given color.
*/
Options.prototype.withColor = function(color) {
return this.extend({
color: color,
});
};
/**
* Create a new options object with "phantom" set to true.
*/
Options.prototype.withPhantom = function() {
return this.extend({
phantom: true,
});
};
/**
* Create a new options objects with the give font.
*/
Options.prototype.withFont = function(font) {
return this.extend({
font: font,
});
};
/**
* Create a new options object with the same style, size, and color. This is
* used so that parent style and size changes are handled correctly.
*/
Options.prototype.reset = function() {
return this.extend({});
};
/**
* A map of color names to CSS colors.
* TODO(emily): Remove this when we have real macros
*/
var colorMap = {
"katex-blue": "#6495ed",
"katex-orange": "#ffa500",
"katex-pink": "#ff00af",
"katex-red": "#df0030",
"katex-green": "#28ae7b",
"katex-gray": "gray",
"katex-purple": "#9d38bd",
"katex-blueA": "#c7e9f1",
"katex-blueB": "#9cdceb",
"katex-blueC": "#58c4dd",
"katex-blueD": "#29abca",
"katex-blueE": "#1c758a",
"katex-tealA": "#acead7",
"katex-tealB": "#76ddc0",
"katex-tealC": "#5cd0b3",
"katex-tealD": "#55c1a7",
"katex-tealE": "#49a88f",
"katex-greenA": "#c9e2ae",
"katex-greenB": "#a6cf8c",
"katex-greenC": "#83c167",
"katex-greenD": "#77b05d",
"katex-greenE": "#699c52",
"katex-goldA": "#f7c797",
"katex-goldB": "#f9b775",
"katex-goldC": "#f0ac5f",
"katex-goldD": "#e1a158",
"katex-goldE": "#c78d46",
"katex-redA": "#f7a1a3",
"katex-redB": "#ff8080",
"katex-redC": "#fc6255",
"katex-redD": "#e65a4c",
"katex-redE": "#cf5044",
"katex-maroonA": "#ecabc1",
"katex-maroonB": "#ec92ab",
"katex-maroonC": "#c55f73",
"katex-maroonD": "#a24d61",
"katex-maroonE": "#94424f",
"katex-purpleA": "#caa3e8",
"katex-purpleB": "#b189c6",
"katex-purpleC": "#9a72ac",
"katex-purpleD": "#715582",
"katex-purpleE": "#644172",
"katex-mintA": "#f5f9e8",
"katex-mintB": "#edf2df",
"katex-mintC": "#e0e5cc",
"katex-grayA": "#fdfdfd",
"katex-grayB": "#f7f7f7",
"katex-grayC": "#eeeeee",
"katex-grayD": "#dddddd",
"katex-grayE": "#cccccc",
"katex-grayF": "#aaaaaa",
"katex-grayG": "#999999",
"katex-grayH": "#555555",
"katex-grayI": "#333333",
"katex-kaBlue": "#314453",
"katex-kaGreen": "#639b24",
};
/**
* Gets the CSS color of the current options object, accounting for the
* `colorMap`.
*/
Options.prototype.getColor = function() {
if (this.phantom) {
return "transparent";
} else {
return colorMap[this.color] || this.color;
}
};
module.exports = Options;
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