127 lines
2.9 KiB
JavaScript
127 lines
2.9 KiB
JavaScript
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/*
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* © Mikko Ahlroth 2014
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* WeeCRApp is open source software. For licensing information, please check
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* the LICENCE file.
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*/
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// Utilities for parsing WeeChat color codes sent
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// in the relay protocol
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.pragma library
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// Protocol specific constants
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// Starting bytes
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var COLOR_START = 0x19;
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var SET_ATTR = 0x1A;
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var REMOVE_ATTR = 0x1B;
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var RESET = 0x1C;
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var START_RE = /^(\u0019|\u001a|\u001b|\u001c)/;
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// Attributes
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var ATTR_BOLD = '*';
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var ATTR_REVERSE = '!';
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var ATTR_ITALIC = '/';
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var ATTR_UNDERLINE = '_';
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var ATTR_KEEP = '|';
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// A section of text which has the given attributes:
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// fgColor: Foreground color as weechat color number
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// bgColor: Background color --//--
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// attributes: List of attributes from the selection above,
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// except ATTR_KEEP.
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function CodedTextSection(str, fgColor, bgColor, attributes) {
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this.str = str;
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this.fgColor = fgColor;
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this.bgColor = bgColor;
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this.attributes = attributes;
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}
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// Parse coded text and return list of CodedTextSection
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function parseString(str) {
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var out = [];
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var currentMode = null;
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var currentFg = null;
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var currentBg = null;
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var currentAttr = [];
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var currentStr = null;
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var parts = str.split(START_RE);
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for (var i = 0; i < parts.length; ++i) {
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// Every even index is a content part
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if ((i % 2) === 0) {
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// The first part won't have any extra info
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if (i !== 0) {
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switch (currentMode) {
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case COLOR_START:
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currentStr = parseColorStart(parts[i], currentFg, currentBg, currentAttr);
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break;
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case SET_ATTR:
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currentStr = parseSetAttr(parts[i], currentFg, currentBg, currentAttr);
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break;
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case REMOVE_ATTR:
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currentStr = parseRemoveAttr(parts[i], currentFg, currentBg, currentAttr);
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break;
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case RESET:
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currentFg = null;
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currentBg = null;
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currentAttr = null;
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break;
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}
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}
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out.push(new CodedTextSection(currentStr, currentFg, currentBg, currentAttr));
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}
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// The odd parts give the next mode
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else {
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currentMode = parts[i];
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}
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}
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return out;
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}
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function parseColorStart(part, currentFg, currentBg, currentAttr) {
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var data = null;
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if (part[0] === 'F') {
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data = parseASTD(part);
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}
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}
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function parseSetAttr(part, currentFg, currentBg, currentAttr) {
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}
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function parseRemoveAttr(part, currentFg, currentBg, currentAttr) {
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}
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// Parse STD (standard color), removing it from the beginning of string
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function parseSTD(str) {
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}
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// Parse EXT (extended color), --//--
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function parseEXT(str) {
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}
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// Parse attributes + STD
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function parseASTD(str) {
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}
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// Parse attributes + EXT
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function parseAEXT(str) {
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}
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// Parse single attribute
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function parseATTR(str) {
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}
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