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More information: https://www.jsdelivr.com/using-sri-with-dynamic-files\n */\n","// comicserver() takes a configuration object and returns a fully-rendered SVG\nconst path = require(\"path\");\nconst _ = require(\"lodash\");\nconst cheerio = require(\"cheerio\");\nconst mustache = require(\"mustache\");\nconst roughjs = require(\"roughjs\");\nconst interpolate = require(\"d3-interpolate-path\");\nconst colorInterpolate = require(\"color-interpolate\");\nconst interpolateNumber = require(\"./interpolate\").number;\nconst interpolateString = require(\"./interpolate\").string;\nconst get_config = require(\"./getconfig\").get_config;\nconst speechbubble = require(\"./speechbubble\");\n\n// TODO: Allow users to override root in options\nlet root = path.join(__dirname, \"..\", \"svg\");\n\nfunction comicgen(fs) {\n function comic(template, _replacements) {\n // comic() or comic('') returns just an empty string.\n if (!template) return \"\";\n // If we got a string, treat it as a HTML template. Render all instances\n else if (typeof template == \"string\") {\n // Replace all instances with the underlying SVG via comic({...})\n let $ = cheerio.load(template, { xmlMode: true });\n $(\"comic\").each(function (index, el) {\n $(el).replaceWith(comic(el.attribs, _replacements));\n });\n\n // Replace interpolation elements\n $(\"interpolate\").each(function (index, el) {\n let $source = $(comic({ name: el.attribs[\"from\"] }, _replacements));\n let $target = $(comic({ name: el.attribs[\"to\"] }, _replacements));\n // TODO: we get all interpolation parameters from index.svg. But they're similar to index.json's replacements.\n // Let's move index.json's replacements into index.svg as elements.\n $(\"param\", el).each(function (index, param) {\n let $param = $(param);\n let selector = $param.attr(\"selector\");\n let key = $param.attr(\"value\");\n let method = $param.attr(\"method\");\n let value = (_replacements[key] || { value: 0 }).value;\n let attrs = ($param.attr(\"attr\") || \"fill,stroke,d\").split(\",\");\n attrs.forEach((attr) => {\n let sourceVal = $target.find(selector).attr(attr);\n let targetVal = $source.find(selector).attr(attr);\n if (!sourceVal || !targetVal) return;\n let interpolator = () => sourceVal;\n if (method == \"path\") interpolator = interpolate.interpolatePath(targetVal, sourceVal);\n else if (method == \"color\") interpolator = colorInterpolate([targetVal, sourceVal]);\n else if (method == \"number\") interpolator = interpolateNumber(targetVal, sourceVal);\n else interpolator = interpolateString(targetVal, sourceVal);\n $(selector, $source).attr(attr, interpolator(value));\n });\n });\n $(el).replaceWith($source);\n });\n // Replace attributes of the SVG, e.g. change fill colors.\n // _replacements is like {name: {selector, attr, value}}.\n // In the SVG, we find all matching selectors and set attr=value\n // Note: Prefer case-insensitive selectors - https://caniuse.com/css-case-insensitive\n // {selector: 'path[fill=\"#ccc\"]'} is case-sensitive. Won't ma\\tch #CCC.\n // {selector: 'path[fill=\"#ccc\" i]'} is case-INsensitive. It will also match #CCC. Use this.\n _.each(_replacements, (replace) => {\n if (replace.value && replace.selector) {\n let $el = $(replace.selector);\n replace.attr.split(/[, ]+/g).forEach((attr) => {\n if ($el.is(`[${attr}]`)) $el.attr(attr, replace.value);\n });\n }\n });\n return $.html().trim();\n }\n\n // Else, if we get a dict of options...\n else if (typeof template == \"object\") {\n // comic({}) return an empty string\n if (!template.name) return \"\";\n let svg_path = path.join(root, template.name);\n let stat;\n try {\n stat = fs.lstatSync(svg_path);\n } catch (e) {\n throw new ComicError(`Unknown character ${template.name}`, {\n name: template.name,\n });\n }\n // If it’s a directory, read the `index.svg`. Else read the file intself\n if (stat.isDirectory()) svg_path = path.join(svg_path, \"index.svg\");\n // Merge all index.json files in every directory from root to svg_path to get the config\n const config = get_config(svg_path, root, fs);\n // Render the SVG as a template\n const attrs = _.merge(\n {\n speechbubble: () => (text, render) => speechbubble({ ...attrs, text: render(text) }),\n },\n config.defaults,\n template,\n comic.functions,\n );\n let width = +attrs.width || config.defaults.width;\n let height = +attrs.height || config.defaults.height;\n const comic_width_half = width / 2;\n const comic_height_half = height / 2;\n const mirror_transform = attrs.mirror ? `translate(${width},0) scale(-1, 1)` : \"\";\n const aspect = config.aspect || \"xMidYMin slice\";\n // Characters with a default width & height are drawn to that viewBox.\n // Others (like speechbubbles) are drawn dynamically based on width/height, and have no viewBox\n const viewBox =\n config.defaults.width && config.defaults.height\n ? `viewBox=\"0 0 ${config.defaults.width} ${config.defaults.height}\"`\n : \"\";\n // If there's a ?box=, add a panel around the strip.\n // ?boxcolor= defines the color. Default: black\n // ?boxgap= defines the box padding. Default: max(box, jitter)\n let box = \"\";\n if (attrs.box) {\n const gen = roughjs.generator({\n options: {\n seed: 1,\n bowing: 2,\n roughness: Math.max(2, Math.min(attrs.box / 2, 5)),\n },\n });\n let padding = +attrs.boxgap || +attrs.box;\n let path = gen.opsToPath(gen.rectangle(padding / 2, padding / 2, width - padding, height - padding).sets[0]);\n box = ``;\n }\n // TODO: check if overflow is working\n const overflow = attrs.box ? \"\" : 'style=\"overflow:visible\"';\n let svg = get_template(svg_path);\n svg = `\n \n ${box}\n \n \n ${render(svg, attrs)}\n \n \n `;\n // If the template contains a object, recursively replace it with comic().\n // Get the replacement parameters from the template object, or the parent replacements object.\n const _new_replacements = _.mapValues(config.replace, (v, k) =>\n _.merge(v, { value: template[k] || _replacements?.[k]?.value }),\n );\n return comic(svg, _new_replacements);\n } else throw new Error(\"TODO\");\n }\n\n // These functions can be used by mustache in templates\n comic.functions = {\n roughrect: function () {\n return function (shape, render) {\n let [x, y, w, h, r, t] = shape.split(/[\\s,]+/);\n r = +render(r);\n t = +render(t);\n const gap = r + t;\n const gen = roughjs.generator({ options: { roughnesss: r } });\n return gen.opsToPath(gen.rectangle(+x + gap, +y + gap, +w - 2 * gap, +h - 2 * gap).sets[0]);\n };\n },\n };\n\n // Return the SVG at svg_path. If there is an , insert that file here.\n // This is done recursively. That makes this function hard to cache -- since it may involve\n // loading multiple files.\n function get_template(svg_path) {\n let svg = fs.readFileSync(svg_path, { encoding: \"utf-8\" });\n return svg.replace(/<\\?import\\s+(.*?)\\?>/, function (match, import_path) {\n return get_template(path.join(svg_path, \"..\", import_path.replace(/^[\"']|[\"']$/g, \"\")));\n });\n }\n\n function render(svg, attrs) {\n return mustache.render(svg, attrs);\n }\n\n return comic;\n}\n\nclass ComicError extends Error {\n constructor(message, options) {\n super(message);\n this.options = options;\n }\n}\n\n// Usage:\n// const comicgen = require('comicgen')(require('fs'))\n// const comicgen = require('comicgen')(require('fsjson'))\nmodule.exports = comicgen;\n"]}