101 lines
3.1 KiB
JavaScript
101 lines
3.1 KiB
JavaScript
/* Copyright 2014 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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exports.parseAdobeCMap = function (content) {
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var m = /(\bbegincmap\b[\s\S]*?)\bendcmap\b/.exec(content);
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if (!m) {
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throw new Error('cmap was not found');
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}
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var body = m[1].replace(/\r\n?/g, '\n');
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var result = {
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type: 1,
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wmode: 0,
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comment: 'Copyright 1990-2009 Adobe Systems Incorporated.\nAll rights reserved.\nSee ./LICENSE',
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usecmap: null,
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body: []
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};
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m = /\/CMapType\s+(\d+)+\s+def\b/.exec(body);
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result.type = +m[1];
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m = /\/WMode\s+(\d+)+\s+def\b/.exec(body);
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result.wmode = +m[1];
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m = /\/([\w\-]+)\s+usecmap\b/.exec(body);
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if (m) {
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result.usecmap = m[1];
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}
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var re = /(\d+)\s+(begincodespacerange|beginnotdefrange|begincidchar|begincidrange|beginbfchar|beginbfrange)\n([\s\S]*?)\n(endcodespacerange|endnotdefrange|endcidchar|endcidrange|endbfchar|endbfrange)/g;
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while (m = re.exec(body)) {
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var lines = m[3].toLowerCase().split('\n');
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var m2;
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switch (m[2]) {
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case 'begincodespacerange':
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result.body.push({
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type: 0,
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items: lines.map(function (line) {
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var m = /<(\w+)>\s+<(\w+)>/.exec(line);
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return {start: m[1], end: m[2]};
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})
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});
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break;
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case 'beginnotdefrange':
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result.body.push({
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type: 1,
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items: lines.map(function (line) {
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var m = /<(\w+)>\s+<(\w+)>\s+(\d+)/.exec(line);
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return {start: m[1], end: m[2], code: +m[3]};
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})
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});
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break;
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case 'begincidchar':
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result.body.push({
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type: 2,
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items: lines.map(function (line) {
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var m = /<(\w+)>\s+(\d+)/.exec(line);
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return {char: m[1], code: +m[2]};
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})
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});
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break;
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case 'begincidrange':
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result.body.push({
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type: 3,
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items: lines.map(function (line) {
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var m = /<(\w+)>\s+<(\w+)>\s+(\d+)/.exec(line);
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return {start: m[1], end: m[2], code: +m[3]};
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})
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});
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break;
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case 'beginbfchar':
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result.body.push({
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type: 4,
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items: lines.map(function (line) {
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var m = /<(\w+)>\s+<(\w+)>/.exec(line);
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return {char: m[1], code: m[2]};
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})
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});
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break;
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case 'beginbfrange':
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result.body.push({
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type: 5,
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items: lines.map(function (line) {
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var m = /<(\w+)>\s+<(\w+)>\s+<(\w+)>/.exec(line);
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return {start: m[1], end: m[2], code: m[3]};
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})
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});
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break;
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}
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}
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return result;
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}; |