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mwparserfromhell
kopia lustrzana https://github.com/earwig/mwparserfromhell
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tags/v0.2
Ben Kurtovic 12 lat temu
rodzic
16024494cf
commit
06b20dd8c0
2 zmienionych plików z 54 dodań i 34 usunięć
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  1. +49
    -33
      mwparserfromhell/parser/tokenizer.c
  2. +5
    -1
      mwparserfromhell/parser/tokenizer.h

+ 49
- 33
mwparserfromhell/parser/tokenizer.c Wyświetl plik

@@ -33,15 +33,15 @@ Tokenizer_new(PyTypeObject* type, PyObject* args, PyObject* kwds)
static struct Textbuffer*
Textbuffer_new(void)
{
struct Textbuffer* buffer = PyObject_Malloc(sizeof(struct Textbuffer));
struct Textbuffer* buffer = malloc(sizeof(struct Textbuffer));
if (!buffer) {
PyErr_NoMemory();
return NULL;
}
buffer->size = 0;
buffer->data = PyObject_Malloc(sizeof(Py_UNICODE) * TEXTBUFFER_BLOCKSIZE);
buffer->data = malloc(sizeof(Py_UNICODE) * TEXTBUFFER_BLOCKSIZE);
if (!buffer->data) {
PyObject_Free(buffer);
free(buffer);
PyErr_NoMemory();
return NULL;
}
@@ -58,7 +58,7 @@ Tokenizer_dealloc(Tokenizer* self)
Py_DECREF(this->stack);
Textbuffer_dealloc(this->textbuffer);
next = this->next;
PyObject_Free(this);
free(this);
this = next;
}
self->ob_type->tp_free((PyObject*) self);
@@ -69,9 +69,9 @@ Textbuffer_dealloc(struct Textbuffer* this)
{
struct Textbuffer* next;
while (this) {
PyObject_Free(this->data);
free(this->data);
next = this->next;
PyObject_Free(this);
free(this);
this = next;
}
}
@@ -98,7 +98,7 @@ Tokenizer_init(Tokenizer* self, PyObject* args, PyObject* kwds)
static int
Tokenizer_push(Tokenizer* self, int context)
{
struct Stack* top = PyObject_Malloc(sizeof(struct Stack));
struct Stack* top = malloc(sizeof(struct Stack));
if (!top) {
PyErr_NoMemory();
return -1;
@@ -180,7 +180,7 @@ Tokenizer_delete_top_of_stack(Tokenizer* self)
Py_DECREF(top->stack);
Textbuffer_dealloc(top->textbuffer);
self->topstack = top->next;
PyObject_Free(top);
free(top);
}

/*
@@ -815,7 +815,7 @@ Tokenizer_parse_heading(Tokenizer* self)
PyObject* level = PyInt_FromSsize_t(heading->level);
if (!level) {
Py_DECREF(heading->title);
PyObject_Free(heading);
free(heading);
return -1;
}

@@ -823,7 +823,7 @@ Tokenizer_parse_heading(Tokenizer* self)
if (!kwargs) {
Py_DECREF(level);
Py_DECREF(heading->title);
PyObject_Free(heading);
free(heading);
return -1;
}
PyDict_SetItemString(kwargs, "level", level);
@@ -833,14 +833,14 @@ Tokenizer_parse_heading(Tokenizer* self)
Py_DECREF(kwargs);
if (!token) {
Py_DECREF(heading->title);
PyObject_Free(heading);
free(heading);
return -1;
}

if (Tokenizer_write(self, token)) {
Py_DECREF(token);
Py_DECREF(heading->title);
PyObject_Free(heading);
free(heading);
return -1;
}
Py_DECREF(token);
@@ -852,18 +852,18 @@ Tokenizer_parse_heading(Tokenizer* self)
difftext[diff] = *"";
if (Tokenizer_write_text_then_stack(self, difftext)) {
Py_DECREF(heading->title);
PyObject_Free(heading);
free(heading);
return -1;
}
}

if (Tokenizer_write_all(self, heading->title)) {
Py_DECREF(heading->title);
PyObject_Free(heading);
free(heading);
return -1;
}
Py_DECREF(heading->title);
PyObject_Free(heading);
free(heading);

token = PyObject_CallObject(HeadingEnd, NULL);
if (!token) return -1;
@@ -917,23 +917,23 @@ Tokenizer_handle_heading_end(Tokenizer* self)
text[best] = *"";
if (Tokenizer_write_text_then_stack(self, text)) {
Py_DECREF(after->title);
PyObject_Free(after);
free(after);
return NULL;
}
if (Tokenizer_write_all(self, after->title)) {
Py_DECREF(after->title);
PyObject_Free(after);
free(after);
return NULL;
}
Py_DECREF(after->title);
level = after->level;
PyObject_Free(after);
free(after);
}

PyObject* stack = Tokenizer_pop(self);
if (!stack) return NULL;

HeadingData* heading = PyObject_Malloc(sizeof(HeadingData));
HeadingData* heading = malloc(sizeof(HeadingData));
if (!heading) {
PyErr_NoMemory();
return NULL;
@@ -952,8 +952,7 @@ Tokenizer_really_parse_entity(Tokenizer* self)
PyObject *token, *kwargs, *textobj;
Py_UNICODE this;
int numeric, hexadecimal, i, j, test;
char *valid, *def;
char text[];
char *valid, *text, *def;

token = PyObject_CallObject(HTMLEntityStart, NULL);
if (!token) return -1;
@@ -967,7 +966,7 @@ Tokenizer_really_parse_entity(Tokenizer* self)

this = Tokenizer_READ(self, 0);
if (this == *"") {
Tokenizer_fail_route();
Tokenizer_fail_route(self);
return 0;
}
if (this == *"#") {
@@ -983,7 +982,7 @@ Tokenizer_really_parse_entity(Tokenizer* self)
self->head++;
this = Tokenizer_READ(self, 0);
if (this == *"") {
Tokenizer_fail_route();
Tokenizer_fail_route(self);
return 0;
}
if (this == *"x" || this == *"X") {
@@ -1016,15 +1015,15 @@ Tokenizer_really_parse_entity(Tokenizer* self)
else
valid = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";

text = PyObject_Malloc(8 * sizeof(char)); // Max theoretical size
text = malloc(MAX_ENTITY_SIZE * sizeof(char));
if (!text) {
PyErr_NoMemory();
return -1;
}

#define FAIL_ROUTE_AND_EXIT() { \
Tokenizer_fail_route(); \
PyObject_Free(text); \
Tokenizer_fail_route(self); \
free(text); \
return 0; \
}

@@ -1070,10 +1069,10 @@ Tokenizer_really_parse_entity(Tokenizer* self)

textobj = PyUnicode_FromString(text);
if (!textobj) {
PyObject_Free(text);
free(text);
return -1;
}
PyObject_Free(text);
free(text);

kwargs = PyDict_New();
if (!kwargs) {
@@ -1082,7 +1081,7 @@ Tokenizer_really_parse_entity(Tokenizer* self)
}
PyDict_SetItemString(kwargs, "text", textobj);
Py_DECREF(textobj);
PyObject* token = PyObject_Call(Text, NOARGS, kwargs);
token = PyObject_Call(Text, NOARGS, kwargs);
Py_DECREF(kwargs);
if (!token) return -1;
if (Tokenizer_write(self, token)) {
@@ -1098,6 +1097,7 @@ Tokenizer_really_parse_entity(Tokenizer* self)
return -1;
}
Py_DECREF(token);
return 0;
}

/*
@@ -1260,7 +1260,6 @@ Tokenizer_parse(Tokenizer* self, int context)
static int unsafe_contexts = LC_TEMPLATE_NAME | LC_WIKILINK_TITLE | LC_TEMPLATE_PARAM_KEY | LC_ARGUMENT_NAME;
int this_context, is_marker, i;
Py_UNICODE this, next, next_next, last;
PyObject *this;

if (Tokenizer_push(self, context))
return NULL;
@@ -1445,6 +1444,25 @@ init_tokenizer(void)
Py_INCREF(&TokenizerType);
PyModule_AddObject(module, "CTokenizer", (PyObject*) &TokenizerType);

PyObject* htmlentitydefs = PyImport_ImportModule("htmlentitydefs");
if (!htmlentitydefs) return;

PyObject* defmap = PyObject_GetAttrString(htmlentitydefs, "entitydefs");
if (!defmap) return;
Py_DECREF(htmlentitydefs);

unsigned numdefs = (unsigned) PyDict_Size(defmap);
entitydefs = malloc(numdefs * sizeof(char));
PyObject* deflist = PyDict_Keys(defmap);
if (!deflist) return;
Py_DECREF(defmap);

unsigned i;
for (i = 0; i < numdefs; i++) {
entitydefs[i] = PyString_AsString(PyList_GET_ITEM(deflist, i));
}
Py_DECREF(deflist);

EMPTY = PyUnicode_FromString("");
NOARGS = PyTuple_New(0);

@@ -1462,9 +1480,7 @@ init_tokenizer(void)

PyObject* tokmodule = PyImport_ImportModuleLevel(name, globals, locals, fromlist, 0);
Py_DECREF(fromlist);
if (!tokmodule) {
return;
}
if (!tokmodule) return;

tokens = PyObject_GetAttrString(tokmodule, "tokens");
Py_DECREF(tokmodule);


+ 5
- 1
mwparserfromhell/parser/tokenizer.h Wyświetl plik

@@ -29,19 +29,23 @@ SOFTWARE.
#include <math.h>
#include <structmember.h>

#define malloc PyObject_Malloc
#define free PyObject_Free

static const char* MARKERS[] = {
"{", "}", "[", "]", "<", ">", "|", "=", "&", "#", "*", ";", ":", "/", "-",
"!", "\n", ""};

#define NUM_MARKERS 18
#define TEXTBUFFER_BLOCKSIZE 1024
#define MAX_ENTITY_SIZE 8

static int route_state = 0;
#define BAD_ROUTE (route_state)
#define FAIL_ROUTE() (route_state = 1)
#define RESET_ROUTE() (route_state = 0)

static char* entitydefs[];
static char** entitydefs;

static PyObject* EMPTY;
static PyObject* NOARGS;


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