f5f5edb889
The spec does not establish any particular constraints to observe in casting from `YARN` to `NUMB(A)R`. Presently, `lci` checks that the string consists only of numeric characters prior to attempting the conversion, halting with an error if it's found not to be the case. This behavior is often more inconvenient than helpful. Many numeric strings encountered in the wild are "roughly numeric", and it would be wise to account for this observation. As a simple example, a user may be prompted to input a number; in the case of their inadvertently providing leading or trailing whitespace, a naive program will crash rather than gracefully extracting the otherwise sensible input. This patch removes the `isDecString()` function and instead leverages the `strtoll()` and `strtof()` functions to handle casts from `YARN` to `NUMBR` and `NUMBAR`, respectively. Thus, strings to be converted are permitted to contain leading whitespace, and trailing non-numeric characters are ignored. Additionally, `YARN`s to be cast to `NUMBR` may lead with `"0"` or `"0x"` to indicate that the string should be interpreted as an octal or hexadecimal value, respectively. This change required the modification of several tests which previously checked that casting an empty or completely non-numeric `YARN` resulted in an error. These now verify that such a conversion results in a zero of the appropriate type. |
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|---|---|---|
| cmake | ||
| test | ||
| .gitignore | ||
| .travis.yml | ||
| CMakeLists.txt | ||
| COPYING | ||
| Doxyfile | ||
| README | ||
| README.md | ||
| binding.c | ||
| binding.h | ||
| error.c | ||
| error.h | ||
| inet.c | ||
| inet.h | ||
| install.py | ||
| interpreter.c | ||
| interpreter.h | ||
| lci.png | ||
| lexer.c | ||
| lexer.h | ||
| main.c | ||
| parser.c | ||
| parser.h | ||
| tokenizer.c | ||
| tokenizer.h | ||
| unicode.c | ||
| unicode.h | ||
README.md
lci
lci is a LOLCODE (http://lolcode.org) interpreter written in C and is designed to be correct, portable, fast, and precisely documented.
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Correct: Every effort has been made to test lci's conformance to the LOLCODE language specification. Unit tests come packaged with the lci source code.
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Portable: lci follows the widely ported ANSI C specification allowing it to compile on a broad range of systems.
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Fast: Much effort has gone into producing simple and efficient code whenever possible to the extent that the above points are not compromized.
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Precisely documented: lci uses Doxygen to generate literate code documentation, browsable here.
This project's homepage is at http://lolcode.org. For help, visit http://groups.google.com/group/lci-general. To report a bug, go to http://github.com/justinmeza/lci/issues.
Created and maintained by Justin J. Meza (http://justinmeza.com).
Prerequisites
- You must have CMake installed (http://www.cmake.org).
- If you're using a Linux distro with package managment CMake should be in your repositories.
- Python 2.7+ or Python 2.x with the argparse module installed.
Installation: The Easy Way on Linux or OSX
Run the script install.py. Note that
$ ./install.py -h
will display a list of relavent install options. For example, to install lci to
the directory /home/foo/opt, run:
$ ./install.py --prefix="/home/foo/opt"
Installation: The More Involved Way on Linux or OSX
- Configure lci using CMake. This can be as simple as opening up the terminal, navigating to the directory containing lci and typing:
$ cmake .
You can also provide any other argument to the CMake configuration process
you'd like. To enable Memory testing turn the PERFORM_MEM_TESTS option on
like so:
$ cmake -DPERFORM_MEM_TESTS:BOOL=ON .
You can also use the ccmake command or the CMake GUI if you prefer. See
the cmake documentation for more details.
- Build the project:
$ make
- Install
$ make install
- (Optional) Build documentation:
$ make docs
- (Optional) Run tests:
$ ctest
License
Copyright (C) 2010-2015 Justin J. Meza
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 http://www.gnu.org/licenses/.