commit f56491fd2e446f41e0305d62d1eb133f40af6c35 Author: Michael Nolan Date: Wed Aug 23 03:06:03 2023 -0500 Initial Commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..3442872 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +calc-cli +calc-gtk +.vscode/ \ No newline at end of file diff --git a/LICENSE.md b/LICENSE.md new file mode 100644 index 0000000..175443c --- /dev/null +++ b/LICENSE.md @@ -0,0 +1,595 @@ +GNU General Public License +========================== + +_Version 3, 29 June 2007_ +_Copyright © 2007 Free Software Foundation, Inc. <>_ + +Everyone is permitted to copy and distribute verbatim copies of this license +document, but changing it is not allowed. + +## Preamble + +The GNU General Public License is a free, copyleft license for software and other +kinds of works. + +The licenses for most software and other practical works are designed to take away +your freedom to share and change the works. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change all versions of a +program--to make sure it remains free software for all its users. We, the Free +Software Foundation, use the GNU General Public License for most of our software; it +applies also to any other work released this way by its authors. You can apply it to +your programs, too. + +When we speak of free software, we are referring to freedom, not price. Our General +Public Licenses are designed to make sure that you have the freedom to distribute +copies of free software (and charge for them if you wish), that you receive source +code or can get it if you want it, that you can change the software or use pieces of +it in new free programs, and that you know you can do these things. + +To protect your rights, we need to prevent others from denying you these rights or +asking you to surrender the rights. Therefore, you have certain responsibilities if +you distribute copies of the software, or if you modify it: responsibilities to +respect the freedom of others. + +For example, if you distribute copies of such a program, whether gratis or for a fee, +you must pass on to the recipients the same freedoms that you received. You must make +sure that they, too, receive or can get the source code. And you must show them these +terms so they know their rights. + +Developers that use the GNU GPL protect your rights with two steps: **(1)** assert +copyright on the software, and **(2)** offer you this License giving you legal permission +to copy, distribute and/or modify it. + +For the developers' and authors' protection, the GPL clearly explains that there is +no warranty for this free software. For both users' and authors' sake, the GPL +requires that modified versions be marked as changed, so that their problems will not +be attributed erroneously to authors of previous versions. + +Some devices are designed to deny users access to install or run modified versions of +the software inside them, although the manufacturer can do so. This is fundamentally +incompatible with the aim of protecting users' freedom to change the software. The +systematic pattern of such abuse occurs in the area of products for individuals to +use, which is precisely where it is most unacceptable. Therefore, we have designed +this version of the GPL to prohibit the practice for those products. If such problems +arise substantially in other domains, we stand ready to extend this provision to +those domains in future versions of the GPL, as needed to protect the freedom of +users. + +Finally, every program is threatened constantly by software patents. States should +not allow patents to restrict development and use of software on general-purpose +computers, but in those that do, we wish to avoid the special danger that patents +applied to a free program could make it effectively proprietary. To prevent this, the +GPL assures that patents cannot be used to render the program non-free. + +The precise terms and conditions for copying, distribution and modification follow. + +## TERMS AND CONDITIONS + +### 0. Definitions + +“This License” refers to version 3 of the GNU General Public License. + +“Copyright” also means copyright-like laws that apply to other kinds of +works, such as semiconductor masks. + +“The Program” refers to any copyrightable work licensed under this +License. Each licensee is addressed as “you”. “Licensees” and +“recipients” may be individuals or organizations. + +To “modify” a work means to copy from or adapt all or part of the work in +a fashion requiring copyright permission, other than the making of an exact copy. The +resulting work is called a “modified version” of the earlier work or a +work “based on” the earlier work. + +A “covered work” means either the unmodified Program or a work based on +the Program. + +To “propagate” a work means to do anything with it that, without +permission, would make you directly or secondarily liable for infringement under +applicable copyright law, except executing it on a computer or modifying a private +copy. Propagation includes copying, distribution (with or without modification), +making available to the public, and in some countries other activities as well. + +To “convey” a work means any kind of propagation that enables other +parties to make or receive copies. Mere interaction with a user through a computer +network, with no transfer of a copy, is not conveying. + +An interactive user interface displays “Appropriate Legal Notices” to the +extent that it includes a convenient and prominently visible feature that **(1)** +displays an appropriate copyright notice, and **(2)** tells the user that there is no +warranty for the work (except to the extent that warranties are provided), that +licensees may convey the work under this License, and how to view a copy of this +License. If the interface presents a list of user commands or options, such as a +menu, a prominent item in the list meets this criterion. + +### 1. Source Code + +The “source code” for a work means the preferred form of the work for +making modifications to it. “Object code” means any non-source form of a +work. + +A “Standard Interface” means an interface that either is an official +standard defined by a recognized standards body, or, in the case of interfaces +specified for a particular programming language, one that is widely used among +developers working in that language. + +The “System Libraries” of an executable work include anything, other than +the work as a whole, that **(a)** is included in the normal form of packaging a Major +Component, but which is not part of that Major Component, and **(b)** serves only to +enable use of the work with that Major Component, or to implement a Standard +Interface for which an implementation is available to the public in source code form. +A “Major Component”, in this context, means a major essential component +(kernel, window system, and so on) of the specific operating system (if any) on which +the executable work runs, or a compiler used to produce the work, or an object code +interpreter used to run it. + +The “Corresponding Source” for a work in object code form means all the +source code needed to generate, install, and (for an executable work) run the object +code and to modify the work, including scripts to control those activities. However, +it does not include the work's System Libraries, or general-purpose tools or +generally available free programs which are used unmodified in performing those +activities but which are not part of the work. For example, Corresponding Source +includes interface definition files associated with source files for the work, and +the source code for shared libraries and dynamically linked subprograms that the work +is specifically designed to require, such as by intimate data communication or +control flow between those subprograms and other parts of the work. + +The Corresponding Source need not include anything that users can regenerate +automatically from other parts of the Corresponding Source. + +The Corresponding Source for a work in source code form is that same work. + +### 2. Basic Permissions + +All rights granted under this License are granted for the term of copyright on the +Program, and are irrevocable provided the stated conditions are met. This License +explicitly affirms your unlimited permission to run the unmodified Program. The +output from running a covered work is covered by this License only if the output, +given its content, constitutes a covered work. This License acknowledges your rights +of fair use or other equivalent, as provided by copyright law. + +You may make, run and propagate covered works that you do not convey, without +conditions so long as your license otherwise remains in force. You may convey covered +works to others for the sole purpose of having them make modifications exclusively +for you, or provide you with facilities for running those works, provided that you +comply with the terms of this License in conveying all material for which you do not +control copyright. Those thus making or running the covered works for you must do so +exclusively on your behalf, under your direction and control, on terms that prohibit +them from making any copies of your copyrighted material outside their relationship +with you. + +Conveying under any other circumstances is permitted solely under the conditions +stated below. Sublicensing is not allowed; section 10 makes it unnecessary. + +### 3. Protecting Users' Legal Rights From Anti-Circumvention Law + +No covered work shall be deemed part of an effective technological measure under any +applicable law fulfilling obligations under article 11 of the WIPO copyright treaty +adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention +of such measures. + +When you convey a covered work, you waive any legal power to forbid circumvention of +technological measures to the extent such circumvention is effected by exercising +rights under this License with respect to the covered work, and you disclaim any +intention to limit operation or modification of the work as a means of enforcing, +against the work's users, your or third parties' legal rights to forbid circumvention +of technological measures. + +### 4. Conveying Verbatim Copies + +You may convey verbatim copies of the Program's source code as you receive it, in any +medium, provided that you conspicuously and appropriately publish on each copy an +appropriate copyright notice; keep intact all notices stating that this License and +any non-permissive terms added in accord with section 7 apply to the code; keep +intact all notices of the absence of any warranty; and give all recipients a copy of +this License along with the Program. + +You may charge any price or no price for each copy that you convey, and you may offer +support or warranty protection for a fee. + +### 5. Conveying Modified Source Versions + +You may convey a work based on the Program, or the modifications to produce it from +the Program, in the form of source code under the terms of section 4, provided that +you also meet all of these conditions: + +* **a)** The work must carry prominent notices stating that you modified it, and giving a +relevant date. +* **b)** The work must carry prominent notices stating that it is released under this +License and any conditions added under section 7. This requirement modifies the +requirement in section 4 to “keep intact all notices”. +* **c)** You must license the entire work, as a whole, under this License to anyone who +comes into possession of a copy. This License will therefore apply, along with any +applicable section 7 additional terms, to the whole of the work, and all its parts, +regardless of how they are packaged. This License gives no permission to license the +work in any other way, but it does not invalidate such permission if you have +separately received it. +* **d)** If the work has interactive user interfaces, each must display Appropriate Legal +Notices; however, if the Program has interactive interfaces that do not display +Appropriate Legal Notices, your work need not make them do so. + +A compilation of a covered work with other separate and independent works, which are +not by their nature extensions of the covered work, and which are not combined with +it such as to form a larger program, in or on a volume of a storage or distribution +medium, is called an “aggregate” if the compilation and its resulting +copyright are not used to limit the access or legal rights of the compilation's users +beyond what the individual works permit. Inclusion of a covered work in an aggregate +does not cause this License to apply to the other parts of the aggregate. + +### 6. Conveying Non-Source Forms + +You may convey a covered work in object code form under the terms of sections 4 and +5, provided that you also convey the machine-readable Corresponding Source under the +terms of this License, in one of these ways: + +* **a)** Convey the object code in, or embodied in, a physical product (including a +physical distribution medium), accompanied by the Corresponding Source fixed on a +durable physical medium customarily used for software interchange. +* **b)** Convey the object code in, or embodied in, a physical product (including a +physical distribution medium), accompanied by a written offer, valid for at least +three years and valid for as long as you offer spare parts or customer support for +that product model, to give anyone who possesses the object code either **(1)** a copy of +the Corresponding Source for all the software in the product that is covered by this +License, on a durable physical medium customarily used for software interchange, for +a price no more than your reasonable cost of physically performing this conveying of +source, or **(2)** access to copy the Corresponding Source from a network server at no +charge. +* **c)** Convey individual copies of the object code with a copy of the written offer to +provide the Corresponding Source. This alternative is allowed only occasionally and +noncommercially, and only if you received the object code with such an offer, in +accord with subsection 6b. +* **d)** Convey the object code by offering access from a designated place (gratis or for +a charge), and offer equivalent access to the Corresponding Source in the same way +through the same place at no further charge. You need not require recipients to copy +the Corresponding Source along with the object code. If the place to copy the object +code is a network server, the Corresponding Source may be on a different server +(operated by you or a third party) that supports equivalent copying facilities, +provided you maintain clear directions next to the object code saying where to find +the Corresponding Source. Regardless of what server hosts the Corresponding Source, +you remain obligated to ensure that it is available for as long as needed to satisfy +these requirements. +* **e)** Convey the object code using peer-to-peer transmission, provided you inform +other peers where the object code and Corresponding Source of the work are being +offered to the general public at no charge under subsection 6d. + +A separable portion of the object code, whose source code is excluded from the +Corresponding Source as a System Library, need not be included in conveying the +object code work. + +A “User Product” is either **(1)** a “consumer product”, which +means any tangible personal property which is normally used for personal, family, or +household purposes, or **(2)** anything designed or sold for incorporation into a +dwelling. In determining whether a product is a consumer product, doubtful cases +shall be resolved in favor of coverage. For a particular product received by a +particular user, “normally used” refers to a typical or common use of +that class of product, regardless of the status of the particular user or of the way +in which the particular user actually uses, or expects or is expected to use, the +product. A product is a consumer product regardless of whether the product has +substantial commercial, industrial or non-consumer uses, unless such uses represent +the only significant mode of use of the product. + +“Installation Information” for a User Product means any methods, +procedures, authorization keys, or other information required to install and execute +modified versions of a covered work in that User Product from a modified version of +its Corresponding Source. The information must suffice to ensure that the continued +functioning of the modified object code is in no case prevented or interfered with +solely because modification has been made. + +If you convey an object code work under this section in, or with, or specifically for +use in, a User Product, and the conveying occurs as part of a transaction in which +the right of possession and use of the User Product is transferred to the recipient +in perpetuity or for a fixed term (regardless of how the transaction is +characterized), the Corresponding Source conveyed under this section must be +accompanied by the Installation Information. But this requirement does not apply if +neither you nor any third party retains the ability to install modified object code +on the User Product (for example, the work has been installed in ROM). + +The requirement to provide Installation Information does not include a requirement to +continue to provide support service, warranty, or updates for a work that has been +modified or installed by the recipient, or for the User Product in which it has been +modified or installed. Access to a network may be denied when the modification itself +materially and adversely affects the operation of the network or violates the rules +and protocols for communication across the network. + +Corresponding Source conveyed, and Installation Information provided, in accord with +this section must be in a format that is publicly documented (and with an +implementation available to the public in source code form), and must require no +special password or key for unpacking, reading or copying. + +### 7. Additional Terms + +“Additional permissions” are terms that supplement the terms of this +License by making exceptions from one or more of its conditions. Additional +permissions that are applicable to the entire Program shall be treated as though they +were included in this License, to the extent that they are valid under applicable +law. If additional permissions apply only to part of the Program, that part may be +used separately under those permissions, but the entire Program remains governed by +this License without regard to the additional permissions. + +When you convey a copy of a covered work, you may at your option remove any +additional permissions from that copy, or from any part of it. (Additional +permissions may be written to require their own removal in certain cases when you +modify the work.) You may place additional permissions on material, added by you to a +covered work, for which you have or can give appropriate copyright permission. + +Notwithstanding any other provision of this License, for material you add to a +covered work, you may (if authorized by the copyright holders of that material) +supplement the terms of this License with terms: + +* **a)** Disclaiming warranty or limiting liability differently from the terms of +sections 15 and 16 of this License; or +* **b)** Requiring preservation of specified reasonable legal notices or author +attributions in that material or in the Appropriate Legal Notices displayed by works +containing it; or +* **c)** Prohibiting misrepresentation of the origin of that material, or requiring that +modified versions of such material be marked in reasonable ways as different from the +original version; or +* **d)** Limiting the use for publicity purposes of names of licensors or authors of the +material; or +* **e)** Declining to grant rights under trademark law for use of some trade names, +trademarks, or service marks; or +* **f)** Requiring indemnification of licensors and authors of that material by anyone +who conveys the material (or modified versions of it) with contractual assumptions of +liability to the recipient, for any liability that these contractual assumptions +directly impose on those licensors and authors. + +All other non-permissive additional terms are considered “further +restrictions” within the meaning of section 10. If the Program as you received +it, or any part of it, contains a notice stating that it is governed by this License +along with a term that is a further restriction, you may remove that term. If a +license document contains a further restriction but permits relicensing or conveying +under this License, you may add to a covered work material governed by the terms of +that license document, provided that the further restriction does not survive such +relicensing or conveying. + +If you add terms to a covered work in accord with this section, you must place, in +the relevant source files, a statement of the additional terms that apply to those +files, or a notice indicating where to find the applicable terms. + +Additional terms, permissive or non-permissive, may be stated in the form of a +separately written license, or stated as exceptions; the above requirements apply +either way. + +### 8. Termination + +You may not propagate or modify a covered work except as expressly provided under +this License. Any attempt otherwise to propagate or modify it is void, and will +automatically terminate your rights under this License (including any patent licenses +granted under the third paragraph of section 11). + +However, if you cease all violation of this License, then your license from a +particular copyright holder is reinstated **(a)** provisionally, unless and until the +copyright holder explicitly and finally terminates your license, and **(b)** permanently, +if the copyright holder fails to notify you of the violation by some reasonable means +prior to 60 days after the cessation. + +Moreover, your license from a particular copyright holder is reinstated permanently +if the copyright holder notifies you of the violation by some reasonable means, this +is the first time you have received notice of violation of this License (for any +work) from that copyright holder, and you cure the violation prior to 30 days after +your receipt of the notice. + +Termination of your rights under this section does not terminate the licenses of +parties who have received copies or rights from you under this License. If your +rights have been terminated and not permanently reinstated, you do not qualify to +receive new licenses for the same material under section 10. + +### 9. Acceptance Not Required for Having Copies + +You are not required to accept this License in order to receive or run a copy of the +Program. Ancillary propagation of a covered work occurring solely as a consequence of +using peer-to-peer transmission to receive a copy likewise does not require +acceptance. However, nothing other than this License grants you permission to +propagate or modify any covered work. These actions infringe copyright if you do not +accept this License. Therefore, by modifying or propagating a covered work, you +indicate your acceptance of this License to do so. + +### 10. Automatic Licensing of Downstream Recipients + +Each time you convey a covered work, the recipient automatically receives a license +from the original licensors, to run, modify and propagate that work, subject to this +License. You are not responsible for enforcing compliance by third parties with this +License. + +An “entity transaction” is a transaction transferring control of an +organization, or substantially all assets of one, or subdividing an organization, or +merging organizations. If propagation of a covered work results from an entity +transaction, each party to that transaction who receives a copy of the work also +receives whatever licenses to the work the party's predecessor in interest had or +could give under the previous paragraph, plus a right to possession of the +Corresponding Source of the work from the predecessor in interest, if the predecessor +has it or can get it with reasonable efforts. + +You may not impose any further restrictions on the exercise of the rights granted or +affirmed under this License. For example, you may not impose a license fee, royalty, +or other charge for exercise of rights granted under this License, and you may not +initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging +that any patent claim is infringed by making, using, selling, offering for sale, or +importing the Program or any portion of it. + +### 11. Patents + +A “contributor” is a copyright holder who authorizes use under this +License of the Program or a work on which the Program is based. The work thus +licensed is called the contributor's “contributor version”. + +A contributor's “essential patent claims” are all patent claims owned or +controlled by the contributor, whether already acquired or hereafter acquired, that +would be infringed by some manner, permitted by this License, of making, using, or +selling its contributor version, but do not include claims that would be infringed +only as a consequence of further modification of the contributor version. For +purposes of this definition, “control” includes the right to grant patent +sublicenses in a manner consistent with the requirements of this License. + +Each contributor grants you a non-exclusive, worldwide, royalty-free patent license +under the contributor's essential patent claims, to make, use, sell, offer for sale, +import and otherwise run, modify and propagate the contents of its contributor +version. + +In the following three paragraphs, a “patent license” is any express +agreement or commitment, however denominated, not to enforce a patent (such as an +express permission to practice a patent or covenant not to sue for patent +infringement). To “grant” such a patent license to a party means to make +such an agreement or commitment not to enforce a patent against the party. + +If you convey a covered work, knowingly relying on a patent license, and the +Corresponding Source of the work is not available for anyone to copy, free of charge +and under the terms of this License, through a publicly available network server or +other readily accessible means, then you must either **(1)** cause the Corresponding +Source to be so available, or **(2)** arrange to deprive yourself of the benefit of the +patent license for this particular work, or **(3)** arrange, in a manner consistent with +the requirements of this License, to extend the patent license to downstream +recipients. “Knowingly relying” means you have actual knowledge that, but +for the patent license, your conveying the covered work in a country, or your +recipient's use of the covered work in a country, would infringe one or more +identifiable patents in that country that you have reason to believe are valid. + +If, pursuant to or in connection with a single transaction or arrangement, you +convey, or propagate by procuring conveyance of, a covered work, and grant a patent +license to some of the parties receiving the covered work authorizing them to use, +propagate, modify or convey a specific copy of the covered work, then the patent +license you grant is automatically extended to all recipients of the covered work and +works based on it. + +A patent license is “discriminatory” if it does not include within the +scope of its coverage, prohibits the exercise of, or is conditioned on the +non-exercise of one or more of the rights that are specifically granted under this +License. You may not convey a covered work if you are a party to an arrangement with +a third party that is in the business of distributing software, under which you make +payment to the third party based on the extent of your activity of conveying the +work, and under which the third party grants, to any of the parties who would receive +the covered work from you, a discriminatory patent license **(a)** in connection with +copies of the covered work conveyed by you (or copies made from those copies), or **(b)** +primarily for and in connection with specific products or compilations that contain +the covered work, unless you entered into that arrangement, or that patent license +was granted, prior to 28 March 2007. + +Nothing in this License shall be construed as excluding or limiting any implied +license or other defenses to infringement that may otherwise be available to you +under applicable patent law. + +### 12. No Surrender of Others' Freedom + +If conditions are imposed on you (whether by court order, agreement or otherwise) +that contradict the conditions of this License, they do not excuse you from the +conditions of this License. If you cannot convey a covered work so as to satisfy +simultaneously your obligations under this License and any other pertinent +obligations, then as a consequence you may not convey it at all. For example, if you +agree to terms that obligate you to collect a royalty for further conveying from +those to whom you convey the Program, the only way you could satisfy both those terms +and this License would be to refrain entirely from conveying the Program. + +### 13. Use with the GNU Affero General Public License + +Notwithstanding any other provision of this License, you have permission to link or +combine any covered work with a work licensed under version 3 of the GNU Affero +General Public License into a single combined work, and to convey the resulting work. +The terms of this License will continue to apply to the part which is the covered +work, but the special requirements of the GNU Affero General Public License, section +13, concerning interaction through a network will apply to the combination as such. + +### 14. Revised Versions of this License + +The Free Software Foundation may publish revised and/or new versions of the GNU +General Public License from time to time. Such new versions will be similar in spirit +to the present version, but may differ in detail to address new problems or concerns. + +Each version is given a distinguishing version number. If the Program specifies that +a certain numbered version of the GNU General Public License “or any later +version” applies to it, you have the option of following the terms and +conditions either of that numbered version or of any later version published by the +Free Software Foundation. If the Program does not specify a version number of the GNU +General Public License, you may choose any version ever published by the Free +Software Foundation. + +If the Program specifies that a proxy can decide which future versions of the GNU +General Public License can be used, that proxy's public statement of acceptance of a +version permanently authorizes you to choose that version for the Program. + +Later license versions may give you additional or different permissions. However, no +additional obligations are imposed on any author or copyright holder as a result of +your choosing to follow a later version. + +### 15. Disclaimer of Warranty + +THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. +EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER +EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE +QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE +DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. + +### 16. Limitation of Liability + +IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY +COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS +PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, +INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE +PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE +OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE +WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + +### 17. Interpretation of Sections 15 and 16 + +If the disclaimer of warranty and limitation of liability provided above cannot be +given local legal effect according to their terms, reviewing courts shall apply local +law that most closely approximates an absolute waiver of all civil liability in +connection with the Program, unless a warranty or assumption of liability accompanies +a copy of the Program in return for a fee. + +_END OF TERMS AND CONDITIONS_ + +## How to Apply These Terms to Your New Programs + +If you develop a new program, and you want it to be of the greatest possible use to +the public, the best way to achieve this is to make it free software which everyone +can redistribute and change under these terms. + +To do so, attach the following notices to the program. It is safest to attach them +to the start of each source file to most effectively state the exclusion of warranty; +and each file should have at least the “copyright” line and a pointer to +where the full notice is found. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + +If the program does terminal interaction, make it output a short notice like this +when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type 'show c' for details. + +The hypothetical commands `show w` and `show c` should show the appropriate parts of +the General Public License. Of course, your program's commands might be different; +for a GUI interface, you would use an “about box”. + +You should also get your employer (if you work as a programmer) or school, if any, to +sign a “copyright disclaimer” for the program, if necessary. For more +information on this, and how to apply and follow the GNU GPL, see +<>. + +The GNU General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may consider it +more useful to permit linking proprietary applications with the library. If this is +what you want to do, use the GNU Lesser General Public License instead of this +License. But first, please read +<>. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..4dc78e4 --- /dev/null +++ b/Makefile @@ -0,0 +1,18 @@ +.PHONY: all clean install +all: calc-gtk calc-cli + +calc-gtk: + gcc ${shell pkg-config --cflags gtk+-3.0} -o calc-gtk calc.c gtk-calc.c ${shell pkg-config --libs gtk+-3.0} -lm + +calc-cli: + gcc -o calc-cli calc.c cli.c -lm + +clean: + rm calc-cli || true + rm calc-gtk || true + +install: calc-gtk calc-cli + cp -f calc-gtk /usr/local/bin/calc-gtk + cp -f calc-cli /usr/local/bin/calc-cli + mkdir -p /usr/local/share/applications || true + cp -f tesses-calc.desktop /usr/local/share/applications/tesses-calc.desktop \ No newline at end of file diff --git a/README.md b/README.md new file mode 100644 index 0000000..cb0b385 --- /dev/null +++ b/README.md @@ -0,0 +1,32 @@ +Tesses Calculator +================= + +A calculator I made in C + +To install +========== +```bash + $ sudo apt install libgtk-3-dev + $ make clean + $ make + $ sudo make install +``` + +To run +====== +```bash + $ calc-gtk +``` +or in launcher +Tesses Calculator +or for cli +```bash + $ calc-cli "Your Calculation 1" "Your Calculation 2" "Your Calculation n" +``` + +Thanks to these people for the knowledge +======================================== +- [GTK3 Tutorial](https://youtu.be/ajNvsv1ka4I) +- [This Calculator Playlist (I think, but I thought it had 4 and not 5 videos) Made Me Understand AST Parsers (I Learned that many months ago)](https://www.youtube.com/playlist?list=PLBOh8f9FoHHg7Ed_4yKhIbq4lIJAlonn8) +- God (for making me smart enough to program) +- Whoever I have not mentioned \ No newline at end of file diff --git a/calc.c b/calc.c new file mode 100644 index 0000000..7dfddad --- /dev/null +++ b/calc.c @@ -0,0 +1,407 @@ +#include "calc.h" +/* + Tesses Calculator a PEMDAS calculator (with mod) + Copyright (C) 2023 Mike Nolan + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +typedef struct node node_t; + +typedef enum { + ADD, + SUB, + TIMES, + DIVIDE, + MOD, + NEG, + POW, + NUMBER, + PAREN +} node_type_t; + +struct node { + node_type_t type; + union + { + struct { + node_t* left; + node_t* right; + } two; + node_t* node; + double number; + } data; + +}; +void node_free(node_t* n) +{ + if(n == NULL) + { + return; + } + switch(n->type) + { + case ADD: + case SUB: + case TIMES: + case DIVIDE: + case MOD: + case POW: + node_free(n->data.two.left); + node_free(n->data.two.right); + break; + case PAREN: + case NEG: + node_free(n->data.node); + break; + default: + break; + } + free(n); +} +typedef struct lextokenlist lextokenlist_t; +typedef struct string string_t; +struct string +{ + int cap; + int len; + char* text; +}; +struct lextokenlist +{ + string_t** tokens; + int cap; + int len; + int i; +}; +string_t* string_create() +{ + string_t* str = (string_t*)malloc(sizeof(string_t)); + str->cap = 16; + str->len = 0; + str->text = (char*)calloc(str->cap + 1,sizeof(char)); + return str; +} +void string_appendc(string_t* str,char c) +{ + if(str->len >= str->cap) + { + str->cap = str->len+16; + str->text = (char*)realloc(str,str->cap + 1); + } + str->text[str->len++] = c; + str->text[str->len] = 0; +} +void string_free(string_t* str) +{ + free(str->text); + free(str); +} +lextokenlist_t* lextokenlist_create() +{ + lextokenlist_t* lt = (lextokenlist_t*)malloc(sizeof(lextokenlist_t)); + lt->cap = 16; + lt->len = 0; + lt->i=0; + lt->tokens = (string_t**)calloc(lt->cap,sizeof(string_t*)); + return lt; +} +void lextokenlist_flush(lextokenlist_t* ls,string_t** str) +{ + string_t* str2 = *str; + if(str2->len > 0) + { + if(ls->len >= ls->cap) + { + ls->cap = ls->len+16; + ls->tokens = (string_t**)realloc(ls->tokens,ls->cap * sizeof(string_t*)); + } + ls->tokens[ls->len++] = str2; + *str = string_create(); + } +} +lextokenlist_t* calc_lex(const char* data) +{ + string_t* str = string_create(); + lextokenlist_t* ls=lextokenlist_create(); + + while(*data != '\0') + { + switch(*data) + { + case '+': + case '-': + case '*': + case '/': + case '%': + case '^': + case '(': + case ')': + lextokenlist_flush(ls,&str); + string_appendc(str,*data); + lextokenlist_flush(ls,&str); + break; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + case '.': + string_appendc(str,*data); + break; + default: + lextokenlist_flush(ls,&str); + break; + } + data++; + } + lextokenlist_flush(ls,&str); + return ls; +} +node_t* calc_parse_expression(lextokenlist_t* tokens); +node_t* calc_parse_value(lextokenlist_t* tokens) +{ + if(tokens->i>=tokens->len) + { + return NULL; + } + if(strncmp(tokens->tokens[tokens->i]->text,"-",(size_t)tokens->tokens[tokens->i]->text)==0) + { + tokens->i++; + if(tokens->i>=tokens->len) + { + return NULL; + } + node_t* n = (node_t*)calloc(1,sizeof(node_t)); + n->data.node = calc_parse_expression(tokens); + n->type = NEG; + return n; + } + else + if(strncmp(tokens->tokens[tokens->i]->text,"(",(size_t)tokens->tokens[tokens->i]->text)==0) + { + tokens->i++; + if(tokens->i>=tokens->len) + { + return NULL; + } + node_t* n = (node_t*)calloc(1,sizeof(node_t)); + n->data.node = calc_parse_expression(tokens); + n->type = PAREN; + if(tokens->i>=tokens->len) + { + node_free(n); + return NULL; + } + if(strncmp(tokens->tokens[tokens->i]->text,")",(size_t)tokens->tokens[tokens->i]->text)!=0) + { + + node_free(n); + return NULL; + } + tokens->i++; + return n; + } + node_t* n = (node_t*)calloc(1,sizeof(node_t)); + n->type = NUMBER; + n->data.number = strtod(tokens->tokens[tokens->i]->text,NULL); + tokens->i++; + return n; +} +node_t* calc_parse_pow(lextokenlist_t* tokens) +{ + node_t* node = calc_parse_value(tokens); + if(node == NULL) return NULL; + while(tokens->ilen && (strncmp(tokens->tokens[tokens->i]->text,"^",(size_t)tokens->tokens[tokens->i]->text)==0)) + { + if(tokens->ilen && strncmp(tokens->tokens[tokens->i]->text,"^",(size_t)tokens->tokens[tokens->i]->text)==0) + { + tokens->i++; + node_t* left = node; + node = (node_t*)calloc(1,sizeof(node_t)); + node->type = POW; + node->data.two.left = left; + node->data.two.right = calc_parse_value(tokens); + if(node->data.two.right == NULL) + { + free(node->data.two.left); + free(node); + return NULL; + } + } + + } + return node; +} +node_t* calc_parse_factor(lextokenlist_t* tokens) +{ + node_t* node = calc_parse_pow(tokens); + if(node == NULL) return NULL; + while(tokens->ilen && (strncmp(tokens->tokens[tokens->i]->text,"*",(size_t)tokens->tokens[tokens->i]->text)==0 || strncmp(tokens->tokens[tokens->i]->text,"/",(size_t)tokens->tokens[tokens->i]->text) == 0 || strncmp(tokens->tokens[tokens->i]->text,"%",(size_t)tokens->tokens[tokens->i]->text) == 0)) + { + if(tokens->ilen && strncmp(tokens->tokens[tokens->i]->text,"*",(size_t)tokens->tokens[tokens->i]->text)==0) + { + tokens->i++; + node_t* left = node; + node = (node_t*)calloc(1,sizeof(node_t)); + node->type = TIMES; + node->data.two.left = left; + node->data.two.right = calc_parse_pow(tokens); + if(node->data.two.right == NULL) + { + free(node->data.two.left); + free(node); + return NULL; + } + } + if(tokens->ilen && strncmp(tokens->tokens[tokens->i]->text,"/",(size_t)tokens->tokens[tokens->i]->text)==0) + { + tokens->i++; + node_t* left = node; + node = (node_t*)calloc(1,sizeof(node_t)); + node->type = DIVIDE; + node->data.two.left = left; + node->data.two.right = calc_parse_pow(tokens); + if(node->data.two.right == NULL) + { + free(node->data.two.left); + free(node); + return NULL; + } + } + if(tokens->ilen && strncmp(tokens->tokens[tokens->i]->text,"%",(size_t)tokens->tokens[tokens->i]->text)==0) + { + tokens->i++; + node_t* left = node; + node = (node_t*)calloc(1,sizeof(node_t)); + node->type = MOD; + node->data.two.left = left; + node->data.two.right = calc_parse_pow(tokens); + if(node->data.two.right == NULL) + { + free(node->data.two.left); + free(node); + return NULL; + } + } + } + return node; +} + +node_t* calc_parse_expression(lextokenlist_t* tokens) +{ + node_t* node = calc_parse_factor(tokens); + if(node == NULL) return NULL; + while(tokens->ilen && (strncmp(tokens->tokens[tokens->i]->text,"+",(size_t)tokens->tokens[tokens->i]->text)==0 || strncmp(tokens->tokens[tokens->i]->text,"-",(size_t)tokens->tokens[tokens->i]->text) == 0)) + { + if(tokens->ilen && strncmp(tokens->tokens[tokens->i]->text,"+",(size_t)tokens->tokens[tokens->i]->text)==0) + { + + tokens->i++; + node_t* left = node; + node = (node_t*)calloc(1,sizeof(node_t)); + node->type = ADD; + node->data.two.left = left; + node->data.two.right = calc_parse_factor(tokens); + if(node->data.two.right == NULL) + { + + node_free(node); + return NULL; + } + } + if(tokens->ilen && strncmp(tokens->tokens[tokens->i]->text,"-",(size_t)tokens->tokens[tokens->i]->text)==0) + { + tokens->i++; + node_t* left = node; + node = (node_t*)calloc(1,sizeof(node_t)); + node->type = SUB; + node->data.two.left = left; + node->data.two.right = calc_parse_factor(tokens); + if(node->data.two.right == NULL) + { + node_free(node); + + return NULL; + } + } + } + return node; +} +double calc_execute_expression(node_t* n,bool* error); +double calc_execute_expression(node_t* n,bool* error) +{ + if(n == NULL) return 0; + if(error != NULL && *error) return 0; + switch(n->type) + { + case ADD: + return calc_execute_expression(n->data.two.left,error) + calc_execute_expression(n->data.two.right,error); + case SUB: + return calc_execute_expression(n->data.two.left,error) - calc_execute_expression(n->data.two.right,error); + case TIMES: + return calc_execute_expression(n->data.two.left,error) * calc_execute_expression(n->data.two.right,error); + case DIVIDE: + { + double left=calc_execute_expression(n->data.two.left,error); + double right = calc_execute_expression(n->data.two.right,error); + if(right == 0){ if(error != NULL) *error = true; return 0;} + return left / right; + } + // if(n->data.two.right) { if(error != NULL) *error = true; return 0;} + + case MOD: + return fmod(calc_execute_expression(n->data.two.left,error),calc_execute_expression(n->data.two.right,error)); + case POW: + return pow(calc_execute_expression(n->data.two.left,error),calc_execute_expression(n->data.two.right,error)); + case PAREN: + return calc_execute_expression(n->data.node,error); + case NEG: + return -calc_execute_expression(n->data.node,error); + case NUMBER: + return n->data.number; + } +} +double calc(const char* data,bool* error) +{ + lextokenlist_t* tokens = calc_lex(data); + node_t* expr= calc_parse_expression(tokens); + + double exprVal = calc_execute_expression(expr,error); + if(expr == NULL) + { + if(error != NULL) + *error=true; + }else + { + node_free(expr); + + } + if(tokens != NULL) + { + int i; + for(i=0;ilen;i++) + { + string_free(tokens->tokens[i]); + + } + free(tokens->tokens); + free(tokens); + } + return exprVal; +} \ No newline at end of file diff --git a/calc.h b/calc.h new file mode 100644 index 0000000..319446f --- /dev/null +++ b/calc.h @@ -0,0 +1,24 @@ +#pragma once +/* + Tesses Calculator a PEMDAS calculator (with mod) + Copyright (C) 2023 Mike Nolan + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +#include +#include +#include +#include +#include +double calc(const char* data,bool* error); \ No newline at end of file diff --git a/cli.c b/cli.c new file mode 100644 index 0000000..b891d0a --- /dev/null +++ b/cli.c @@ -0,0 +1,55 @@ +#include "calc.h" +/* + Tesses Calculator a PEMDAS calculator (with mod) + Copyright (C) 2023 Mike Nolan + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +void truncatezeros(char* c) +{ + size_t pos = strlen(c) - 1; + while(pos >= 0 && c[pos] == '0' ) + { + + c[pos] = 0; + + pos--; + if(pos >= 0 && c[pos] == '.') + { + c[pos] = 0; + } + } + +} +int main(int argc,char** argv) +{ + int i; + for(i=1;i +#include "calc.h" +/* + Tesses Calculator a PEMDAS calculator (with mod) + Copyright (C) 2023 Mike Nolan + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +GtkWidget* number; +void truncatezeros(char* c) +{ + size_t pos = strlen(c) - 1; + while(pos >= 0 && c[pos] == '0' ) + { + + c[pos] = 0; + + pos--; + if(pos >= 0 && c[pos] == '.') + { + c[pos] = 0; + } + } + +} +void calculate_answer(GtkWidget* calculate,gpointer data) +{ + const char* text= gtk_entry_get_text(GTK_ENTRY(number)); + bool error=false; + double val=calc(text,&error); + char myNumber[1000]; + if(error) + { + snprintf(myNumber,1000,"error"); + } + else + { + snprintf(myNumber,1000,"%f",val); + truncatezeros(myNumber); + } + + gtk_entry_set_text(GTK_ENTRY(number),myNumber); +} + +int +main (int argc, + char **argv) +{ + GtkWidget* window; + GtkWidget* grid; + GtkWidget* calculate; + gtk_init(&argc,&argv); + window = gtk_window_new(GTK_WINDOW_TOPLEVEL); + g_signal_connect(window,"destroy",G_CALLBACK(gtk_main_quit),NULL); + + grid = gtk_grid_new(); + gtk_container_add(GTK_CONTAINER(window),grid); + number = gtk_entry_new(); + + gtk_grid_attach(GTK_GRID(grid),number,0,0,1,1); + + calculate = gtk_button_new_with_label("Calculate"); + gtk_widget_set_hexpand (calculate, TRUE); + gtk_widget_set_halign (calculate, GTK_ALIGN_CENTER); + g_signal_connect(calculate,"clicked",G_CALLBACK(calculate_answer),NULL); + gtk_grid_attach(GTK_GRID(grid),calculate,0,1,1,1); + gtk_window_set_title(GTK_WINDOW(window),"Tesses Calculator"); + gtk_window_set_default_size(GTK_WINDOW(window),320,-1); + gtk_widget_show_all(window); + gtk_main(); + return 0; +} diff --git a/tesses-calc.desktop b/tesses-calc.desktop new file mode 100644 index 0000000..4eccbec --- /dev/null +++ b/tesses-calc.desktop @@ -0,0 +1,13 @@ +[Desktop Entry] +Name=Tesses Calculator +Comment=Add (+) Subract (-) Multiply (*) Divide (/) Mod (%) Pow (^) Parens +# Translators: Search terms to find this application. Do NOT translate or localize the semicolons! The list MUST also end with a semicolon! +Keywords=calculation;arithmetic; +Exec=calc-gtk +# Translators: Do NOT translate or transliterate this text (this is an icon file name)! +Icon=org.gnome.Calculator +Terminal=false +Type=Application +StartupNotify=true +Categories=GNOME;GTK;Utility;Calculator; +X-Purism-FormFactor=Workstation;Mobile; \ No newline at end of file