@pdf-lib/fontkit 1.1.1 Author (npm package): Andrew Dillon Fork of fontkit by Devon Govett. License declared by the package and upstream README: MIT Sources: https://github.com/Hopding/fontkit and https://github.com/foliojs/fontkit The published package has no standalone LICENSE file. The MIT permission text and embedded dependency notices are reproduced below. MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 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NOTICES PRESERVED FROM THE DISTRIBUTED FONTKIT BUNDLE // Copyright Joyent, Inc. and other Node contributors. // Permission is hereby granted, free of charge, to any person obtaining a // The above copyright notice and this permission notice shall be included // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, /* * base64-arraybuffer * https://github.com/niklasvh/base64-arraybuffer * * Copyright (c) 2012 Niklas von Hertzen * Licensed under the MIT license. */ /** * The font's copyright information * @type {string} */ /* Copyright 2013 Google Inc. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. Bit reading helpers */ /* Copyright 2013 Google Inc. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. Collection of static dictionary words. */ /* Copyright 2013 Google Inc. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. Lookup table to map the previous two bytes to a context id. There are four different context modeling modes defined here: CONTEXT_LSB6: context id is the least significant 6 bits of the last byte, CONTEXT_MSB6: context id is the most significant 6 bits of the last byte, CONTEXT_UTF8: second-order context model tuned for UTF8-encoded text, CONTEXT_SIGNED: second-order context model tuned for signed integers. The context id for the UTF8 context model is calculated as follows. If p1 and p2 are the previous two bytes, we calcualte the context as context = kContextLookup[p1] | kContextLookup[p2 + 256]. If the previous two bytes are ASCII characters (i.e. < 128), this will be equivalent to context = 4 * context1(p1) + context2(p2), where context1 is based on the previous byte in the following way: 0 : non-ASCII control 1 : \t, \n, \r 2 : space 3 : other punctuation 4 : " ' 5 : % 6 : ( < [ { 7 : ) > ] } 8 : , ; : 9 : . 10 : = 11 : number 12 : upper-case vowel 13 : upper-case consonant 14 : lower-case vowel 15 : lower-case consonant and context2 is based on the second last byte: 0 : control, space 1 : punctuation 2 : upper-case letter, number 3 : lower-case letter If the last byte is ASCII, and the second last byte is not (in a valid UTF8 stream it will be a continuation byte, value between 128 and 191), the context is the same as if the second last byte was an ASCII control or space. If the last byte is a UTF8 lead byte (value >= 192), then the next byte will be a continuation byte and the context id is 2 or 3 depending on the LSB of the last byte and to a lesser extent on the second last byte if it is ASCII. If the last byte is a UTF8 continuation byte, the second last byte can be: - continuation byte: the next byte is probably ASCII or lead byte (assuming 4-byte UTF8 characters are rare) and the context id is 0 or 1. - lead byte (192 - 207): next byte is ASCII or lead byte, context is 0 or 1 - lead byte (208 - 255): next byte is continuation byte, context is 2 or 3 The possible value combinations of the previous two bytes, the range of context ids and the type of the next byte is summarized in the table below: |--------\-----------------------------------------------------------------| | \ Last byte | | Second \---------------------------------------------------------------| | last byte \ ASCII | cont. byte | lead byte | | \ (0-127) | (128-191) | (192-) | |=============|===================|=====================|==================| | ASCII | next: ASCII/lead | not valid | next: cont. | | (0-127) | context: 4 - 63 | | context: 2 - 3 | |-------------|-------------------|---------------------|------------------| | cont. byte | next: ASCII/lead | next: ASCII/lead | next: cont. | | (128-191) | context: 4 - 63 | context: 0 - 1 | context: 2 - 3 | |-------------|-------------------|---------------------|------------------| | lead byte | not valid | next: ASCII/lead | not valid | | (192-207) | | context: 0 - 1 | | |-------------|-------------------|---------------------|------------------| | lead byte | not valid | next: cont. | not valid | | (208-) | | context: 2 - 3 | | |-------------|-------------------|---------------------|------------------| The context id for the signed context mode is calculated as: context = (kContextLookup[512 + p1] << 3) | kContextLookup[512 + p2]. For any context modeling modes, the context ids can be calculated by |-ing together two lookups from one table using context model dependent offsets: context = kContextLookup[offset1 + p1] | kContextLookup[offset2 + p2]. where offset1 and offset2 are dependent on the context mode. */ /* Copyright 2013 Google Inc. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. Lookup tables to map prefix codes to value ranges. This is used during decoding of the block lengths, literal insertion lengths and copy lengths. */ /* Copyright 2013 Google Inc. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. Transformations on dictionary words. */ /* Copyright 2013 Google Inc. All Rights Reserved. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ APACHE LICENSE 2.0 (BUNDLED BROTLI CODE) Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. 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