From 9d63263384947489095a15b84f517d3e09739a33 Mon Sep 17 00:00:00 2001 From: Nathan TeBlunthuis Date: Fri, 4 Jul 2025 20:53:39 -0700 Subject: [PATCH] switch to GPL (for complience with wikidiff2) add the code. --- LICENSE | 339 ++++++++++++++++++++++++++++++++++++ main.py | 6 + pyproject.toml | 12 ++ pywikidiff2/pywikidiff2.cpp | 180 +++++++++++++++++++ setup.py | 31 ++++ test/test_pywikidiff2.py | 15 ++ 6 files changed, 583 insertions(+) create mode 100644 LICENSE create mode 100644 main.py create mode 100644 pyproject.toml create mode 100644 pywikidiff2/pywikidiff2.cpp create mode 100644 setup.py create mode 100644 test/test_pywikidiff2.py diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..d159169 --- /dev/null +++ b/LICENSE @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/main.py b/main.py new file mode 100644 index 0000000..e3a1114 --- /dev/null +++ b/main.py @@ -0,0 +1,6 @@ +def main(): + print("Hello from pywikidiff2!") + + +if __name__ == "__main__": + main() diff --git a/pyproject.toml b/pyproject.toml new file mode 100644 index 0000000..4b52ff8 --- /dev/null +++ b/pyproject.toml @@ -0,0 +1,12 @@ +[build-system] +requires = ["setuptools>=61.0", "wheel"] +build-backend = "setuptools.build_meta" + +[project] +name = "pywikidiff2" +version = "0.1.0" +description = "Python module providing interface to wikidiff2 for SOTA wikitext diffs." +readme = "README.md" +requires-python = ">=3.11" +dependencies = [] +authors = [{ name="Nathan TeBlunthuis", email="nathanteblunthuis@gmail.com"}] diff --git a/pywikidiff2/pywikidiff2.cpp b/pywikidiff2/pywikidiff2.cpp new file mode 100644 index 0000000..b24c559 --- /dev/null +++ b/pywikidiff2/pywikidiff2.cpp @@ -0,0 +1,180 @@ +#define PY_SSIZE_T_CLEAN +#include +#include "structmember.h" +#undef HAVE_CONFIG_H // this disables the php allocator +#include "../mediawiki-php-wikidiff2/src/lib/Wikidiff2.h" +#include "../mediawiki-php-wikidiff2/src/lib/Formatter.h" +#include "../mediawiki-php-wikidiff2/src/lib/TableFormatter.h" +#include "../mediawiki-php-wikidiff2/src/lib/InlineFormatter.h" +#include "../mediawiki-php-wikidiff2/src/lib/InlineJSONFormatter.h" + +using wikidiff2::Wikidiff2; +using wikidiff2::TableFormatter; +using wikidiff2::Formatter; +//using wikidiff2::InlineFormatter; +using wikidiff2::InlineJSONFormatter; + +// additional state (i.e., configuration) go here. +typedef struct { + PyObject_HEAD + Wikidiff2::Config config; +} pywikidiff2Obj; + +// here's where we set default configuration values +static PyObject * +pywikidiff2_new(PyTypeObject *type, PyObject *args, PyObject *kwds) +{ + pywikidiff2Obj *self; + self = (pywikidiff2Obj *) type->tp_alloc(type, 0); + self->config.numContextLines = 15; + self->config.movedLineThreshold = 0.4; + self->config.changeThreshold = 0.2; + self->config.maxMovedLines = 100; + self->config.maxWordLevelDiffComplexity = 40000000; + self->config.maxSplitSize = 1; + self->config.initialSplitThreshold = 0.1; + self->config.finalSplitThreshold = 0.6; + return (PyObject *) self; +} + +static int +pywikidiff2_init(pywikidiff2Obj *self, PyObject *args, PyObject *kwds) +{ + // here's where we set non-default configuration values + static char *kwlist[] = {"numContextLines", "moved_line_threshold", "change_threshold", "moved_paragraph_detection_cutoff", "max_word_level_diff_complexity", "max_split_size", "initial_split_threshold", "final_split_threshold", NULL}; + if (!PyArg_ParseTupleAndKeywords(args, kwds, "|iffiiiff", kwlist, + &self->config.numContextLines, + &self->config.movedLineThreshold, + &self->config.changeThreshold, + &self->config.maxMovedLines, + &self->config.maxWordLevelDiffComplexity, + &self->config.maxSplitSize, + &self->config.initialSplitThreshold, + &self->config.finalSplitThreshold + )){ + PyErr_SetString(PyExc_ImportError,"Error in configuration"); + return -1; + } + + return 0; +} + +static PyObject *pywikidiff2_numContextLines(pywikidiff2Obj *self, PyObject *Py_UNUSED(ignored)){ + return PyLong_FromLong(self->config.numContextLines); +} + +static PyObject *pywikidiff2_movedLineThreshold(pywikidiff2Obj *self, PyObject *Py_UNUSED(ignored)){ + return PyFloat_FromDouble(self->config.movedLineThreshold); +} + +static PyObject *pywikidiff2_changeThreshold(pywikidiff2Obj *self, PyObject *Py_UNUSED(ignored)){ + return PyFloat_FromDouble(self->config.changeThreshold); +} + +static PyObject *pywikidiff2_maxMovedLines(pywikidiff2Obj *self, PyObject *Py_UNUSED(ignored)){ + return PyLong_FromLong(self->config.maxMovedLines); +} + +static PyObject *pywikidiff2_maxWordLevelDiffComplexity(pywikidiff2Obj *self, PyObject *Py_UNUSED(ignored)){ + return PyLong_FromLong(self->config.maxWordLevelDiffComplexity); +} + +static PyObject *pywikidiff2_maxSplitSize(pywikidiff2Obj *self, PyObject *Py_UNUSED(ignored)){ + return PyLong_FromLong(self->config.maxSplitSize); +} + +static PyObject *pywikidiff2_initialSplitThreshold(pywikidiff2Obj *self, PyObject *Py_UNUSED(ignored)){ + return PyFloat_FromDouble(self->config.initialSplitThreshold); +} + +static PyObject *pywikidiff2_finalSplitThreshold(pywikidiff2Obj *self, PyObject *Py_UNUSED(ignored)){ + return PyFloat_FromDouble(self->config.finalSplitThreshold); +} + +static PyObject *pywikidiff2_inline_json_diff(pywikidiff2Obj *self, PyObject *args, PyObject *kwargs){ + static char* kwdlist[] = {"text1", "text2", "numContextLines", NULL}; + char* text1; + char* text2; + long numContextLines; + if (!PyArg_ParseTupleAndKeywords(args, kwargs, "ss|$i", + kwdlist, + &text1, + &text2, + numContextLines + )){ + PyErr_SetString(PyExc_ValueError, "Error in arguments to inline_json_diff"); + return NULL; + } + + Wikidiff2 wikidiff2( *(&self->config)); + size_t text1_len = sizeof(text1); + size_t text2_len = sizeof(text2); + Wikidiff2::String text1String(text1, text1_len); + Wikidiff2::String text2String(text2, text2_len); + + InlineJSONFormatter formatter; + wikidiff2.addFormatter(formatter); + wikidiff2.execute(text1String, text2String); + Wikidiff2::String ret = formatter.getResult().str(); + return PyUnicode_FromFormat("%s",ret.c_str()); +}; + +static PyMethodDef pywikidiff2_methods[] = { + {"inline_json_diff", (PyCFunction) pywikidiff2_inline_json_diff, METH_VARARGS | METH_KEYWORDS, "run wikidiff 2 on text1 and text2"}, + {"num_context_lines", (PyCFunction) pywikidiff2_numContextLines, METH_NOARGS, "number of equal lines to output in the context of a diff"}, + {"moved_line_threshold", (PyCFunction) pywikidiff2_movedLineThreshold, METH_NOARGS, "The minimum similarity a pair of lines must have to be detected as a moved line. If present, this overrides php.ini wikidiff2.moved_line_threshold"}, + {"change_threshold", (PyCFunction) pywikidiff2_changeThreshold, METH_NOARGS, "Changed lines with a similarity value below this threshold will be split into a deleted line and added line. This helps matching up moved lines in some cases."}, + {"moved_paragraph_detection_cutoff", (PyCFunction) pywikidiff2_maxMovedLines, METH_NOARGS, "When the number of added and deleted lines in a table diff is greater than this limit, no attempt to detect moved lines will be made."}, + {"max_moved_lines", (PyCFunction) pywikidiff2_maxMovedLines, METH_NOARGS, "When the number of added and deleted lines in a table diff is greater than this limit, no attempt to detect moved lines will be made."}, + {"max_word_level_diff_complexity", (PyCFunction) pywikidiff2_maxWordLevelDiffComplexity, METH_NOARGS, + "When comparing two lines for changes within the line, a word-level diff will be done unless the product of the LHS word count and the RHS word count exceeds this limit."}, + {"max_split_size", (PyCFunction) pywikidiff2_maxSplitSize, METH_NOARGS, "The maximum number of lines in $text2 which may be considered for a word-level diff against a single line of $text1. Default: 1."}, + {"initial_split_threshold", (PyCFunction) pywikidiff2_initialSplitThreshold, METH_NOARGS, "The minimum similarity which must be maintained during a split detection search. The search terminates when the similarity falls below this level. Default: 0.1."}, + {"final_split_threshold", (PyCFunction) pywikidiff2_finalSplitThreshold, METH_NOARGS, "The minimum similarity which must be achieved in order to display the comparison between one line and several lines as a split. Default 0.6."}, + {NULL} /* Sentinel */ +}; + +static PyTypeObject pywikidiff2Type = { + .ob_base = PyVarObject_HEAD_INIT(NULL, 0) + .tp_name = "pywikidiff2.pywikidiff2", + .tp_basicsize = sizeof(pywikidiff2Obj), + .tp_itemsize = 0, + .tp_flags = Py_TPFLAGS_DEFAULT, + .tp_doc = PyDoc_STR("Create an object that can run wikidiff2"), + .tp_methods = pywikidiff2_methods, + // .tp_members = pywikidiff2_members, + .tp_init = (initproc) pywikidiff2_init, + .tp_new = pywikidiff2_new, +}; + + +static struct PyModuleDef pywikidiff2 = { + PyModuleDef_HEAD_INIT, + .m_name = "pywikidiff2", + .m_size=0, +}; + +// the args are: configuration dictionary, text_1, text_2 +PyMODINIT_FUNC PyInit_pywikidiff2(void) +{ + PyObject *m; + if (PyType_Ready(&pywikidiff2Type) < 0){ + PyErr_SetString(PyExc_ImportError,"not pytype ready"); + return NULL; + } + m = PyModule_Create(&pywikidiff2); + if (m == NULL){ + PyErr_SetString(PyExc_ImportError, "module null"); + return NULL; + } + Py_INCREF(&pywikidiff2Type); + if (PyModule_AddObject(m, "pywikidiff2", (PyObject *) &pywikidiff2Type) < 0) { + Py_DECREF(&pywikidiff2Type); + Py_DECREF(m); + PyErr_SetString(PyExc_ImportError,"Could not add object"); + return NULL; + } + return m; +} + + diff --git a/setup.py b/setup.py new file mode 100644 index 0000000..4e4b7de --- /dev/null +++ b/setup.py @@ -0,0 +1,31 @@ +# setup.py +import setuptools +import glob +import os + +# You can load existing pyproject.toml configuration if needed, +# or just define the extension directly here. + +# Example: Finding C++ sources dynamically +cpp_sources = glob.glob("mediawiki-php-wikidiff2/src/lib/*.cpp", recursive=True) # Finds all .cpp files in src and subdirs + +cpp_sources += ["pywikidiff2/pywikidiff2.cpp"] + +# Filter out test files or other unwanted files if necessary +# cpp_sources = [f for f in cpp_sources if not "test" in f] + +my_extension = setuptools.Extension( + "pywikidiff2", + sources=cpp_sources, + include_dirs=[], + extra_compile_args=["-Wall", "-std=c++17", "-fPIC","-lthai","-lstdc++"], + extra_link_args=["-lthai", "-lstdc++"], + language="c++", +) + +setuptools.setup( + # Load metadata from pyproject.toml + # (requires setuptools>=61.0 for declarative config) + # This setup() call essentially acts as a wrapper + ext_modules=[my_extension], +) diff --git a/test/test_pywikidiff2.py b/test/test_pywikidiff2.py new file mode 100644 index 0000000..7253e7d --- /dev/null +++ b/test/test_pywikidiff2.py @@ -0,0 +1,15 @@ +import pywikidiff2 + +obj = pywikidiff2.pywikidiff2() +obj = pywikidiff2.pywikidiff2(numContextLines=100000) +print(obj.num_context_lines()) +print(obj.moved_line_threshold()) +print(obj.change_threshold()) +print(obj.moved_paragraph_detection_cutoff()) +print(obj.max_split_size()) +print(obj.initial_split_threshold()) +print(obj.final_split_threshold()) + +res = obj.inline_json_diff("help! I'm alive", "help! dead I am") +print('\n') +print(res)