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/* |
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stack - an interactive interpreter for a stack-based language |
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Copyright (C) 2002 Mats Alritzson and Teddy Hogeborn |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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|
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Authors: Mats Alritzson <masse@fukt.bth.se> |
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Teddy Hogeborn <teddy@fukt.bth.se> |
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*/ |
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|
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const char *license_message= |
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" GNU GENERAL PUBLIC LICENSE\n\ |
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Version 2, June 1991\n\ |
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\n\ |
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Copyright (C) 1989, 1991 Free Software Foundation, Inc.\n\ |
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59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n\ |
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Everyone is permitted to copy and distribute verbatim copies\n\ |
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of this license document, but changing it is not allowed.\n\ |
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\n\ |
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Preamble\n\ |
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\n\ |
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The licenses for most software are designed to take away your\n\ |
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freedom to share and change it. By contrast, the GNU General Public\n\ |
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License is intended to guarantee your freedom to share and change free\n\ |
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software--to make sure the software is free for all its users. This\n\ |
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General Public License applies to most of the Free Software\n\ |
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Foundation's software and to any other program whose authors commit to\n\ |
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using it. (Some other Free Software Foundation software is covered by\n\ |
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the GNU Library General Public License instead.) You can apply it to\n\ |
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your programs, too.\n\ |
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\n\ |
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When we speak of free software, we are referring to freedom, not\n\ |
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price. Our General Public Licenses are designed to make sure that you\n\ |
| 46 |
have the freedom to distribute copies of free software (and charge for\n\ |
| 47 |
this service if you wish), that you receive source code or can get it\n\ |
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if you want it, that you can change the software or use pieces of it\n\ |
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in new free programs; and that you know you can do these things.\n\ |
| 50 |
\n\ |
| 51 |
To protect your rights, we need to make restrictions that forbid\n\ |
| 52 |
anyone to deny you these rights or to ask you to surrender the rights.\n\ |
| 53 |
These restrictions translate to certain responsibilities for you if you\n\ |
| 54 |
distribute copies of the software, or if you modify it.\n\ |
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\n\ |
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For example, if you distribute copies of such a program, whether\n\ |
| 57 |
gratis or for a fee, you must give the recipients all the rights that\n\ |
| 58 |
you have. You must make sure that they, too, receive or can get the\n\ |
| 59 |
source code. And you must show them these terms so they know their\n\ |
| 60 |
rights.\n\ |
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\n\ |
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We protect your rights with two steps: (1) copyright the software, and\n\ |
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(2) offer you this license which gives you legal permission to copy,\n\ |
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distribute and/or modify the software.\n\ |
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\n\ |
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Also, for each author's protection and ours, we want to make certain\n\ |
| 67 |
that everyone understands that there is no warranty for this free\n\ |
| 68 |
software. If the software is modified by someone else and passed on, we\n\ |
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want its recipients to know that what they have is not the original, so\n\ |
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that any problems introduced by others will not reflect on the original\n\ |
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authors' reputations.\n\ |
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\n\ |
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Finally, any free program is threatened constantly by software\n\ |
| 74 |
patents. We wish to avoid the danger that redistributors of a free\n\ |
| 75 |
program will individually obtain patent licenses, in effect making the\n\ |
| 76 |
program proprietary. To prevent this, we have made it clear that any\n\ |
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patent must be licensed for everyone's free use or not licensed at all.\n\ |
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\n\ |
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The precise terms and conditions for copying, distribution and\n\ |
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modification follow.\n\ |
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\n\ |
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GNU GENERAL PUBLIC LICENSE\n\ |
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION\n\ |
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\n\ |
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0. This License applies to any program or other work which contains\n\ |
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a notice placed by the copyright holder saying it may be distributed\n\ |
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under the terms of this General Public License. The \"Program\", below,\n\ |
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refers to any such program or work, and a \"work based on the Program\"\n\ |
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means either the Program or any derivative work under copyright law:\n\ |
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that is to say, a work containing the Program or a portion of it,\n\ |
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either verbatim or with modifications and/or translated into another\n\ |
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language. (Hereinafter, translation is included without limitation in\n\ |
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the term \"modification\".) Each licensee is addressed as \"you\".\n\ |
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\n\ |
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Activities other than copying, distribution and modification are not\n\ |
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covered by this License; they are outside its scope. The act of\n\ |
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running the Program is not restricted, and the output from the Program\n\ |
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is covered only if its contents constitute a work based on the\n\ |
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Program (independent of having been made by running the Program).\n\ |
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Whether that is true depends on what the Program does.\n\ |
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\n\ |
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1. You may copy and distribute verbatim copies of the Program's\n\ |
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source code as you receive it, in any medium, provided that you\n\ |
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conspicuously and appropriately publish on each copy an appropriate\n\ |
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copyright notice and disclaimer of warranty; keep intact all the\n\ |
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notices that refer to this License and to the absence of any warranty;\n\ |
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and give any other recipients of the Program a copy of this License\n\ |
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along with the Program.\n\ |
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\n\ |
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You may charge a fee for the physical act of transferring a copy, and\n\ |
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you may at your option offer warranty protection in exchange for a fee.\n\ |
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\n\ |
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2. You may modify your copy or copies of the Program or any portion\n\ |
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of it, thus forming a work based on the Program, and copy and\n\ |
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distribute such modifications or work under the terms of Section 1\n\ |
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above, provided that you also meet all of these conditions:\n\ |
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\n\ |
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a) You must cause the modified files to carry prominent notices\n\ |
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stating that you changed the files and the date of any change.\n\ |
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\n\ |
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b) You must cause any work that you distribute or publish, that in\n\ |
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whole or in part contains or is derived from the Program or any\n\ |
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part thereof, to be licensed as a whole at no charge to all third\n\ |
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parties under the terms of this License.\n\ |
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\n\ |
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c) If the modified program normally reads commands interactively\n\ |
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when run, you must cause it, when started running for such\n\ |
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interactive use in the most ordinary way, to print or display an\n\ |
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announcement including an appropriate copyright notice and a\n\ |
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notice that there is no warranty (or else, saying that you provide\n\ |
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a warranty) and that users may redistribute the program under\n\ |
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these conditions, and telling the user how to view a copy of this\n\ |
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License. (Exception: if the Program itself is interactive but\n\ |
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does not normally print such an announcement, your work based on\n\ |
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the Program is not required to print an announcement.)\n\ |
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\n\ |
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These requirements apply to the modified work as a whole. If\n\ |
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identifiable sections of that work are not derived from the Program,\n\ |
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and can be reasonably considered independent and separate works in\n\ |
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themselves, then this License, and its terms, do not apply to those\n\ |
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sections when you distribute them as separate works. But when you\n\ |
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distribute the same sections as part of a whole which is a work based\n\ |
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on the Program, the distribution of the whole must be on the terms of\n\ |
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this License, whose permissions for other licensees extend to the\n\ |
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entire whole, and thus to each and every part regardless of who wrote it.\n\ |
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\n\ |
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Thus, it is not the intent of this section to claim rights or contest\n\ |
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your rights to work written entirely by you; rather, the intent is to\n\ |
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exercise the right to control the distribution of derivative or\n\ |
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collective works based on the Program.\n\ |
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\n\ |
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In addition, mere aggregation of another work not based on the Program\n\ |
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with the Program (or with a work based on the Program) on a volume of\n\ |
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a storage or distribution medium does not bring the other work under\n\ |
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the scope of this License.\n\ |
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\n\ |
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3. You may copy and distribute the Program (or a work based on it,\n\ |
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under Section 2) in object code or executable form under the terms of\n\ |
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Sections 1 and 2 above provided that you also do one of the following:\n\ |
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\n\ |
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a) Accompany it with the complete corresponding machine-readable\n\ |
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source code, which must be distributed under the terms of Sections\n\ |
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1 and 2 above on a medium customarily used for software interchange; or,\n\ |
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\n\ |
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b) Accompany it with a written offer, valid for at least three\n\ |
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years, to give any third party, for a charge no more than your\n\ |
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cost of physically performing source distribution, a complete\n\ |
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machine-readable copy of the corresponding source code, to be\n\ |
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distributed under the terms of Sections 1 and 2 above on a medium\n\ |
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customarily used for software interchange; or,\n\ |
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\n\ |
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c) Accompany it with the information you received as to the offer\n\ |
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to distribute corresponding source code. (This alternative is\n\ |
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allowed only for noncommercial distribution and only if you\n\ |
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received the program in object code or executable form with such\n\ |
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an offer, in accord with Subsection b above.)\n\ |
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\n\ |
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The source code for a work means the preferred form of the work for\n\ |
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making modifications to it. For an executable work, complete source\n\ |
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code means all the source code for all modules it contains, plus any\n\ |
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associated interface definition files, plus the scripts used to\n\ |
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control compilation and installation of the executable. However, as a\n\ |
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special exception, the source code distributed need not include\n\ |
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anything that is normally distributed (in either source or binary\n\ |
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form) with the major components (compiler, kernel, and so on) of the\n\ |
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operating system on which the executable runs, unless that component\n\ |
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itself accompanies the executable.\n\ |
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\n\ |
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If distribution of executable or object code is made by offering\n\ |
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access to copy from a designated place, then offering equivalent\n\ |
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access to copy the source code from the same place counts as\n\ |
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distribution of the source code, even though third parties are not\n\ |
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compelled to copy the source along with the object code.\n\ |
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\n\ |
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4. You may not copy, modify, sublicense, or distribute the Program\n\ |
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except as expressly provided under this License. Any attempt\n\ |
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otherwise to copy, modify, sublicense or distribute the Program is\n\ |
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void, and will automatically terminate your rights under this License.\n\ |
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However, parties who have received copies, or rights, from you under\n\ |
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this License will not have their licenses terminated so long as such\n\ |
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parties remain in full compliance.\n\ |
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\n\ |
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5. You are not required to accept this License, since you have not\n\ |
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signed it. However, nothing else grants you permission to modify or\n\ |
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distribute the Program or its derivative works. These actions are\n\ |
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prohibited by law if you do not accept this License. Therefore, by\n\ |
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modifying or distributing the Program (or any work based on the\n\ |
| 208 |
Program), you indicate your acceptance of this License to do so, and\n\ |
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all its terms and conditions for copying, distributing or modifying\n\ |
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the Program or works based on it.\n\ |
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\n\ |
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6. Each time you redistribute the Program (or any work based on the\n\ |
| 213 |
Program), the recipient automatically receives a license from the\n\ |
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original licensor to copy, distribute or modify the Program subject to\n\ |
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these terms and conditions. You may not impose any further\n\ |
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restrictions on the recipients' exercise of the rights granted herein.\n\ |
| 217 |
You are not responsible for enforcing compliance by third parties to\n\ |
| 218 |
this License.\n\ |
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\n\ |
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7. If, as a consequence of a court judgment or allegation of patent\n\ |
| 221 |
infringement or for any other reason (not limited to patent issues),\n\ |
| 222 |
conditions are imposed on you (whether by court order, agreement or\n\ |
| 223 |
otherwise) that contradict the conditions of this License, they do not\n\ |
| 224 |
excuse you from the conditions of this License. If you cannot\n\ |
| 225 |
distribute so as to satisfy simultaneously your obligations under this\n\ |
| 226 |
License and any other pertinent obligations, then as a consequence you\n\ |
| 227 |
may not distribute the Program at all. For example, if a patent\n\ |
| 228 |
license would not permit royalty-free redistribution of the Program by\n\ |
| 229 |
all those who receive copies directly or indirectly through you, then\n\ |
| 230 |
the only way you could satisfy both it and this License would be to\n\ |
| 231 |
refrain entirely from distribution of the Program.\n\ |
| 232 |
\n\ |
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If any portion of this section is held invalid or unenforceable under\n\ |
| 234 |
any particular circumstance, the balance of the section is intended to\n\ |
| 235 |
apply and the section as a whole is intended to apply in other\n\ |
| 236 |
circumstances.\n\ |
| 237 |
\n\ |
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It is not the purpose of this section to induce you to infringe any\n\ |
| 239 |
patents or other property right claims or to contest validity of any\n\ |
| 240 |
such claims; this section has the sole purpose of protecting the\n\ |
| 241 |
integrity of the free software distribution system, which is\n\ |
| 242 |
implemented by public license practices. Many people have made\n\ |
| 243 |
generous contributions to the wide range of software distributed\n\ |
| 244 |
through that system in reliance on consistent application of that\n\ |
| 245 |
system; it is up to the author/donor to decide if he or she is willing\n\ |
| 246 |
to distribute software through any other system and a licensee cannot\n\ |
| 247 |
impose that choice.\n\ |
| 248 |
\n\ |
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This section is intended to make thoroughly clear what is believed to\n\ |
| 250 |
be a consequence of the rest of this License.\n\ |
| 251 |
\n\ |
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8. If the distribution and/or use of the Program is restricted in\n\ |
| 253 |
certain countries either by patents or by copyrighted interfaces, the\n\ |
| 254 |
original copyright holder who places the Program under this License\n\ |
| 255 |
may add an explicit geographical distribution limitation excluding\n\ |
| 256 |
those countries, so that distribution is permitted only in or among\n\ |
| 257 |
countries not thus excluded. In such case, this License incorporates\n\ |
| 258 |
the limitation as if written in the body of this License.\n\ |
| 259 |
\n\ |
| 260 |
9. The Free Software Foundation may publish revised and/or new versions\n\ |
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of the General Public License from time to time. Such new versions will\n\ |
| 262 |
be similar in spirit to the present version, but may differ in detail to\n\ |
| 263 |
address new problems or concerns.\n\ |
| 264 |
\n\ |
| 265 |
Each version is given a distinguishing version number. If the Program\n\ |
| 266 |
specifies a version number of this License which applies to it and \"any\n\ |
| 267 |
later version\", you have the option of following the terms and conditions\n\ |
| 268 |
either of that version or of any later version published by the Free\n\ |
| 269 |
Software Foundation. If the Program does not specify a version number of\n\ |
| 270 |
this License, you may choose any version ever published by the Free Software\n\ |
| 271 |
Foundation.\n\ |
| 272 |
\n\ |
| 273 |
10. If you wish to incorporate parts of the Program into other free\n\ |
| 274 |
programs whose distribution conditions are different, write to the author\n\ |
| 275 |
to ask for permission. For software which is copyrighted by the Free\n\ |
| 276 |
Software Foundation, write to the Free Software Foundation; we sometimes\n\ |
| 277 |
make exceptions for this. Our decision will be guided by the two goals\n\ |
| 278 |
of preserving the free status of all derivatives of our free software and\n\ |
| 279 |
of promoting the sharing and reuse of software generally."; |
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|
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const char *warranty_message= |
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" NO WARRANTY\n\ |
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\n\ |
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11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY\n\ |
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FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN\n\ |
| 286 |
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES\n\ |
| 287 |
PROVIDE THE PROGRAM \"AS IS\" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED\n\ |
| 288 |
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF\n\ |
| 289 |
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS\n\ |
| 290 |
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE\n\ |
| 291 |
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,\n\ |
| 292 |
REPAIR OR CORRECTION.\n\ |
| 293 |
\n\ |
| 294 |
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING\n\ |
| 295 |
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR\n\ |
| 296 |
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,\n\ |
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INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING\n\ |
| 298 |
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED\n\ |
| 299 |
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY\n\ |
| 300 |
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER\n\ |
| 301 |
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE\n\ |
| 302 |
POSSIBILITY OF SUCH DAMAGES."; |
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