Current Dev State

static/js/ketcher2/node_modules/svgicons2svgfont/src/metadata.js

@@ -0,0 +1,85 @@
+'use strict';
+
+var path = require('path');
+var fs = require('fs');
+
+require('string.fromcodepoint');
+require('string.prototype.codepointat');
+
+function getMetadataService(options) {
+  var usedUnicodes = [];
+
+  // Default options
+  options = options || {};
+  options.prependUnicode = !!options.prependUnicode;
+  options.startUnicode = 'number' === typeof options.startUnicode ?
+    options.startUnicode :
+    0xEA01;
+  options.log = options.log || console.log; // eslint-disable-line
+  options.err = options.err || console.err; // eslint-disable-line
+
+  // Throw on old options usage
+  if('undefined' !== typeof options.appendUnicode) {
+    throw new Error(
+      'The "appendUnicode" option were renamed "prependUnicode".' +
+      ' See https://github.com/nfroidure/gulp-svgicons2svgfont/issues/33'
+    );
+  }
+
+  return function getMetadataFromFile(file, cb) {
+    var basename = path.basename(file);
+    var metadata = {
+      path: file,
+      name: '',
+      unicode: [],
+      renamed: false,
+    };
+    var matches = basename.match(/^(?:((?:u[0-9a-f]{4,6},?)+)\-)?(.+)\.svg$/i);
+
+    metadata.name = matches && matches[2] ?
+      matches[2] :
+      'icon' + options.startUnicode;
+    if(matches && matches[1]) {
+      metadata.unicode = matches[1].split(',').map(function(match) {
+        match = match.substr(1);
+        return match.split('u').map(function(code) {
+          return String.fromCodePoint(parseInt(code, 16));
+        }).join('');
+      });
+      if(-1 !== usedUnicodes.indexOf(metadata.unicode[0])) {
+        return cb(new Error('The unicode codepoint of the glyph ' + metadata.name +
+          ' seems to be already used by another glyph.'));
+      }
+      usedUnicodes = usedUnicodes.concat(metadata.unicode);
+    } else {
+      do {
+        metadata.unicode[0] = String.fromCodePoint(options.startUnicode++);
+      } while(-1 !== usedUnicodes.indexOf(metadata.unicode[0]));
+      usedUnicodes.push(metadata.unicode[0]);
+      if(options.prependUnicode) {
+        metadata.renamed = true;
+        metadata.path = path.dirname(file) + '/' +
+          'u' + metadata.unicode[0].codePointAt(0).toString(16).toUpperCase() +
+          '-' + basename;
+        fs.rename(file, metadata.path,
+          function(err) {
+            if(err) {
+              return cb(new Error('Could not save codepoint: ' +
+                'u' + metadata.unicode[0].codePointAt(0).toString(16).toUpperCase() +
+                ' for ' + basename));
+            }
+            cb(null, metadata);
+          }
+        );
+      }
+    }
+    if(!metadata.renamed) {
+      setImmediate(function() {
+        cb(null, metadata);
+      });
+    }
+  };
+
+}
+
+module.exports = getMetadataService;