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mwparserfromhell
mirror of https://github.com/earwig/mwparserfromhell
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Fix exception implementation; some other cleanup and fixes.

tags/v0.2
Ben Kurtovic 11 years ago
parent
9993f1ba76
commit
8e4819ea37
2 changed files with 260 additions and 262 deletions
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  1. +258
    -257
      mwparserfromhell/parser/tokenizer.c
  2. +2
    -5
      mwparserfromhell/parser/tokenizer.h

+ 258
- 257
mwparserfromhell/parser/tokenizer.c View File

@@ -206,15 +206,15 @@ Tokenizer_pop_keeping_context(Tokenizer* self)

/*
Fail the current tokenization route. Discards the current
stack/context/textbuffer and "raises a BAD_ROUTE exception", which is
implemented using longjmp().
stack/context/textbuffer and raises a BadRoute exception.
*/
static void
static void*
Tokenizer_fail_route(Tokenizer* self)
{
PyObject* stack = Tokenizer_pop(self);
Py_XDECREF(stack);
longjmp(exception_env, BAD_ROUTE);
PyErr_SetNone(BadRoute);
return NULL;
}

/*
@@ -393,9 +393,11 @@ Tokenizer_parse_template_or_argument(Tokenizer* self)
}

if (braces == 2) {
if (setjmp(exception_env) == BAD_ROUTE) {
PyObject* text = PyUnicode_FromString("{{");
if (Tokenizer_parse_template(self)) return -1;

if (PyErr_Occurred()) {
PyErr_Clear();
PyObject* text = PyUnicode_FromString("{{");
if (Tokenizer_write_text_then_stack(self, text)) {
Py_XDECREF(text);
return -1;
@@ -403,14 +405,20 @@ Tokenizer_parse_template_or_argument(Tokenizer* self)

Py_XDECREF(text);
return 0;
} else {
Tokenizer_parse_template(self);
}
break;
}

if (setjmp(exception_env) == BAD_ROUTE) {
if (setjmp(exception_env) == BAD_ROUTE) {
if (Tokenizer_parse_argument(self)) return -1;
braces -= 3;

if (PyErr_Occurred()) {
PyErr_Clear();
if (Tokenizer_parse_template(self)) return -1;
braces -= 2;

if (PyErr_Occurred()) {
PyErr_Clear();
char bracestr[braces];
for (i = 0; i < braces; i++) bracestr[i] = *"{";
PyObject* text = PyUnicode_FromString(bracestr);
@@ -423,14 +431,6 @@ Tokenizer_parse_template_or_argument(Tokenizer* self)
Py_XDECREF(text);
return 0;
}
else {
Tokenizer_parse_template(self);
braces -= 2;
}
}
else {
Tokenizer_parse_argument(self);
braces -= 3;
}

if (braces) {
@@ -458,52 +458,49 @@ Tokenizer_parse_template(Tokenizer* self)
PyObject *template, *class, *token;
Py_ssize_t reset = self->head;

if (setjmp(exception_env) == BAD_ROUTE) {
template = Tokenizer_parse(self, LC_TEMPLATE_NAME);
if (PyErr_Occurred()) {
self->head = reset;
longjmp(exception_env, BAD_ROUTE);
return 0;
}
if (!template) return -1;

else {
template = Tokenizer_parse(self, LC_TEMPLATE_NAME);
if (!template) return -1;

class = PyObject_GetAttrString(tokens, "TemplateOpen");
if (!class) {
Py_DECREF(template);
return -1;
}
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) {
Py_DECREF(template);
return -1;
}
class = PyObject_GetAttrString(tokens, "TemplateOpen");
if (!class) {
Py_DECREF(template);
return -1;
}
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) {
Py_DECREF(template);
return -1;
}

if (Tokenizer_write_first(self, token)) {
Py_DECREF(token);
Py_DECREF(template);
return -1;
}
if (Tokenizer_write_first(self, token)) {
Py_DECREF(token);
Py_DECREF(template);
return -1;
}
Py_DECREF(token);

if (Tokenizer_write_all(self, template)) {
Py_DECREF(template);
return -1;
}
if (Tokenizer_write_all(self, template)) {
Py_DECREF(template);
return -1;
}
Py_DECREF(template);

class = PyObject_GetAttrString(tokens, "TemplateClose");
if (!class) return -1;
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) return -1;
class = PyObject_GetAttrString(tokens, "TemplateClose");
if (!class) return -1;
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) return -1;

if (Tokenizer_write(self, token)) {
Py_DECREF(token);
return -1;
}
if (Tokenizer_write(self, token)) {
Py_DECREF(token);
return -1;
}
Py_DECREF(token);

return 0;
}
@@ -517,52 +514,49 @@ Tokenizer_parse_argument(Tokenizer* self)
PyObject *argument, *class, *token;
Py_ssize_t reset = self->head;

if (setjmp(exception_env) == BAD_ROUTE) {
argument = Tokenizer_parse(self, LC_ARGUMENT_NAME);
if (PyErr_Occurred()) {
self->head = reset;
longjmp(exception_env, BAD_ROUTE);
return 0;
}
if (!argument) return -1;

else {
argument = Tokenizer_parse(self, LC_ARGUMENT_NAME);
if (!argument) return -1;

class = PyObject_GetAttrString(tokens, "ArgumentOpen");
if (!class) {
Py_DECREF(argument);
return -1;
}
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) {
Py_DECREF(argument);
return -1;
}
class = PyObject_GetAttrString(tokens, "ArgumentOpen");
if (!class) {
Py_DECREF(argument);
return -1;
}
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) {
Py_DECREF(argument);
return -1;
}

if (Tokenizer_write_first(self, token)) {
Py_DECREF(token);
Py_DECREF(argument);
return -1;
}
if (Tokenizer_write_first(self, token)) {
Py_DECREF(token);
Py_DECREF(argument);
return -1;
}
Py_DECREF(token);

if (Tokenizer_write_all(self, argument)) {
Py_DECREF(argument);
return -1;
}
if (Tokenizer_write_all(self, argument)) {
Py_DECREF(argument);
return -1;
}
Py_DECREF(argument);

class = PyObject_GetAttrString(tokens, "ArgumentClose");
if (!class) return -1;
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) return -1;
class = PyObject_GetAttrString(tokens, "ArgumentClose");
if (!class) return -1;
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) return -1;

if (Tokenizer_write(self, token)) {
Py_DECREF(token);
return -1;
}
if (Tokenizer_write(self, token)) {
Py_DECREF(token);
return -1;
}
Py_DECREF(token);

return 0;
}
@@ -679,7 +673,7 @@ Tokenizer_handle_template_param(Tokenizer* self)
Py_ssize_t context = Tokenizer_CONTEXT_VAL(self);

if (context & LC_TEMPLATE_NAME) {
const char* unsafes[] = {"\n", "{", "}", "[", "]"};
const char* unsafes[] = {"\n", "{", "}", "[", "]", NULL};
if (Tokenizer_verify_safe(self, unsafes))
return -1;
if (Tokenizer_set_context(self, context ^ LC_TEMPLATE_NAME))
@@ -726,16 +720,14 @@ Tokenizer_handle_template_param(Tokenizer* self)
static int
Tokenizer_handle_template_param_value(Tokenizer* self)
{
if (setjmp(exception_env) == BAD_ROUTE) {
const char* unsafes[] = {"\n", "{{", "}}", NULL};
if (Tokenizer_verify_safe(self, unsafes))
return -1;

if (PyErr_Occurred()) {
PyObject* stack = Tokenizer_pop(self);
Py_XDECREF(stack);
longjmp(exception_env, BAD_ROUTE);
}

else {
const char* unsafes[] = {"\n", "{{", "}}"};
if (Tokenizer_verify_safe(self, unsafes))
return -1;
return 0;
}

PyObject* stack = Tokenizer_pop_keeping_context(self);
@@ -776,7 +768,7 @@ Tokenizer_handle_template_end(Tokenizer* self)
Py_ssize_t context = Tokenizer_CONTEXT_VAL(self);

if (context & LC_TEMPLATE_NAME) {
const char* unsafes[] = {"\n", "{", "}", "[", "]"};
const char* unsafes[] = {"\n", "{", "}", "[", "]", NULL};
if (Tokenizer_verify_safe(self, unsafes))
return NULL;
}
@@ -801,7 +793,7 @@ Tokenizer_handle_template_end(Tokenizer* self)
static int
Tokenizer_handle_argument_separator(Tokenizer* self)
{
const char* unsafes[] = {"\n", "{{", "}}"};
const char* unsafes[] = {"\n", "{{", "}}", NULL};
if (Tokenizer_verify_safe(self, unsafes))
return -1;

@@ -832,7 +824,7 @@ static PyObject*
Tokenizer_handle_argument_end(Tokenizer* self)
{
if (Tokenizer_CONTEXT_VAL(self) & LC_ARGUMENT_NAME) {
const char* unsafes[] = {"\n", "{{", "}}"};
const char* unsafes[] = {"\n", "{{", "}}", NULL};
if (Tokenizer_verify_safe(self, unsafes))
return NULL;
}
@@ -851,7 +843,12 @@ Tokenizer_parse_wikilink(Tokenizer* self)
self->head += 2;
Py_ssize_t reset = self->head - 1;

if (setjmp(exception_env) == BAD_ROUTE) {
PyObject *class, *token;
PyObject *wikilink = Tokenizer_parse(self, LC_WIKILINK_TITLE);
if (!wikilink) return -1;

if (PyErr_Occurred()) {
PyErr_Clear();
self->head = reset;
PyObject* text = PyUnicode_FromString("[[");
if (!text) return -1;
@@ -859,49 +856,45 @@ Tokenizer_parse_wikilink(Tokenizer* self)
Py_XDECREF(text);
return -1;
}
return 0;
}
else {
PyObject *class, *token;
PyObject *wikilink = Tokenizer_parse(self, LC_WIKILINK_TITLE);
if (!wikilink) return -1;

class = PyObject_GetAttrString(tokens, "WikilinkOpen");
if (!class) {
Py_DECREF(wikilink);
return -1;
}
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) {
Py_DECREF(wikilink);
return -1;
}
class = PyObject_GetAttrString(tokens, "WikilinkOpen");
if (!class) {
Py_DECREF(wikilink);
return -1;
}
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) {
Py_DECREF(wikilink);
return -1;
}

if (Tokenizer_write(self, token)) {
Py_DECREF(token);
Py_DECREF(wikilink);
return -1;
}
if (Tokenizer_write(self, token)) {
Py_DECREF(token);
Py_DECREF(wikilink);
return -1;
}
Py_DECREF(token);

if (Tokenizer_write_all(self, wikilink)) {
Py_DECREF(wikilink);
return -1;
}
if (Tokenizer_write_all(self, wikilink)) {
Py_DECREF(wikilink);
return -1;
}
Py_DECREF(wikilink);

class = PyObject_GetAttrString(tokens, "WikilinkClose");
if (!class) return -1;
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) return -1;
class = PyObject_GetAttrString(tokens, "WikilinkClose");
if (!class) return -1;
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) return -1;

if (Tokenizer_write(self, token)) {
Py_DECREF(token);
return -1;
}
if (Tokenizer_write(self, token)) {
Py_DECREF(token);
return -1;
}
Py_DECREF(token);
return 0;
}

@@ -911,7 +904,7 @@ Tokenizer_parse_wikilink(Tokenizer* self)
static int
Tokenizer_handle_wikilink_separator(Tokenizer* self)
{
const char* unsafes[] = {"\n", "{", "}", "[", "]"};
const char* unsafes[] = {"\n", "{", "}", "[", "]", NULL};
if (Tokenizer_verify_safe(self, unsafes))
return -1;

@@ -942,7 +935,7 @@ static PyObject*
Tokenizer_handle_wikilink_end(Tokenizer* self)
{
if (Tokenizer_CONTEXT_VAL(self) & LC_WIKILINK_TITLE) {
const char* unsafes[] = {"\n", "{", "}", "[", "]"};
const char* unsafes[] = {"\n", "{", "}", "[", "]", NULL};
if (Tokenizer_verify_safe(self, unsafes))
return NULL;
}
@@ -971,11 +964,13 @@ Tokenizer_parse_heading(Tokenizer* self)
}

Py_ssize_t context = LC_HEADING_LEVEL_1 << (best > 5 ? 5 : best - 1);
HeadingData* heading = (HeadingData*) Tokenizer_parse(self, context);

if (setjmp(exception_env) == BAD_ROUTE) {
if (PyErr_Occurred()) {
PyErr_Clear();
self->head = reset + best - 1;
char blocks[best];
for (i = 0; i < best; i++) blocks[i] = *"{";
for (i = 0; i < best; i++) blocks[i] = *"=";
text = PyUnicode_FromString(blocks);
if (!text) return -1;

@@ -985,94 +980,92 @@ Tokenizer_parse_heading(Tokenizer* self)
}
Py_DECREF(text);
self->global ^= GL_HEADING;
return 0;
}
else {
HeadingData* heading = (HeadingData*) Tokenizer_parse(self, context);

PyObject* level = PyInt_FromSsize_t(heading->level);
if (!level) {
Py_DECREF(heading->title);
free(heading);
return -1;
}
PyObject* level = PyInt_FromSsize_t(heading->level);
if (!level) {
Py_DECREF(heading->title);
free(heading);
return -1;
}

PyObject* class = PyObject_GetAttrString(tokens, "HeadingStart");
if (!class) {
Py_DECREF(level);
Py_DECREF(heading->title);
free(heading);
return -1;
}
PyObject* kwargs = PyDict_New();
if (!kwargs) {
Py_DECREF(class);
Py_DECREF(level);
Py_DECREF(heading->title);
free(heading);
return -1;
}
PyDict_SetItemString(kwargs, "level", level);
PyObject* class = PyObject_GetAttrString(tokens, "HeadingStart");
if (!class) {
Py_DECREF(level);

PyObject* token = PyObject_Call(class, NOARGS, kwargs);
Py_DECREF(heading->title);
free(heading);
return -1;
}
PyObject* kwargs = PyDict_New();
if (!kwargs) {
Py_DECREF(class);
Py_DECREF(kwargs);
if (!token) {
Py_DECREF(heading->title);
free(heading);
return -1;
}
Py_DECREF(level);
Py_DECREF(heading->title);
free(heading);
return -1;
}
PyDict_SetItemString(kwargs, "level", level);
Py_DECREF(level);

if (Tokenizer_write(self, token)) {
Py_DECREF(token);
PyObject* token = PyObject_Call(class, NOARGS, kwargs);
Py_DECREF(class);
Py_DECREF(kwargs);
if (!token) {
Py_DECREF(heading->title);
free(heading);
return -1;
}

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

if (heading->level < best) {
Py_ssize_t diff = best - heading->level;
char diffblocks[diff];
for (i = 0; i < diff; i++) diffblocks[i] = *"=";
PyObject* text = PyUnicode_FromString(diffblocks);
if (!text) {
Py_DECREF(heading->title);
free(heading);
return -1;
}
Py_DECREF(token);

if (heading->level < best) {
Py_ssize_t diff = best - heading->level;
char diffblocks[diff];
for (i = 0; i < diff; i++) diffblocks[i] = *"=";
PyObject* text = PyUnicode_FromString(diffblocks);
if (!text) {
Py_DECREF(heading->title);
free(heading);
return -1;
}

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

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

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

class = PyObject_GetAttrString(tokens, "HeadingEnd");
if (!class) return -1;
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) return -1;
class = PyObject_GetAttrString(tokens, "HeadingEnd");
if (!class) return -1;
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) return -1;

if (Tokenizer_write(self, token)) {
Py_DECREF(token);
return -1;
}
if (Tokenizer_write(self, token)) {
Py_DECREF(token);

self->global ^= GL_HEADING;
return -1;
}
Py_DECREF(token);

self->global ^= GL_HEADING;
return 0;
}

@@ -1096,7 +1089,11 @@ Tokenizer_handle_heading_end(Tokenizer* self)
Py_ssize_t current = log2(Tokenizer_CONTEXT_VAL(self) / LC_HEADING_LEVEL_1) + 1;
Py_ssize_t level = current > best ? (best > 6 ? 6 : best) : (current > 6 ? 6 : current);

if (setjmp(exception_env) == BAD_ROUTE) {
Py_ssize_t context = Tokenizer_CONTEXT_VAL(self);
HeadingData* after = (HeadingData*) Tokenizer_parse(self, context);

if (PyErr_Occurred()) {
PyErr_Clear();
if (level < best) {
Py_ssize_t diff = best - level;
char diffblocks[diff];
@@ -1113,10 +1110,8 @@ Tokenizer_handle_heading_end(Tokenizer* self)

self->head = reset + best - 1;
}
else {
Py_ssize_t context = Tokenizer_CONTEXT_VAL(self);
HeadingData* after = (HeadingData*) Tokenizer_parse(self, context);

else {
char blocks[best];
for (i = 0; i < best; i++) blocks[i] = *"=";
text = PyUnicode_FromString(blocks);
@@ -1176,24 +1171,25 @@ Tokenizer_parse_entity(Tokenizer* self)
if (Tokenizer_push(self, 0))
return -1;

if (setjmp(exception_env) == BAD_ROUTE) {
if (Tokenizer_really_parse_entity(self))
return -1;

if (PyErr_Occurred()) {
PyErr_Clear();
self->head = reset;
if (Tokenizer_write_text(self, Tokenizer_read(self, 0)))
return -1;
return 0;
}
else {
if (Tokenizer_really_parse_entity(self))
return -1;

PyObject* tokenlist = Tokenizer_pop(self);
if (!tokenlist) return -1;
if (Tokenizer_write_all(self, tokenlist)) {
Py_DECREF(tokenlist);
return -1;
}

PyObject* tokenlist = Tokenizer_pop(self);
if (!tokenlist) return -1;
if (Tokenizer_write_all(self, tokenlist)) {
Py_DECREF(tokenlist);
return -1;
}

Py_DECREF(tokenlist);
return 0;
}

@@ -1206,7 +1202,12 @@ Tokenizer_parse_comment(Tokenizer* self)
self->head += 4;
Py_ssize_t reset = self->head - 1;

if (setjmp(exception_env) == BAD_ROUTE) {
PyObject *class, *token;
PyObject *comment = Tokenizer_parse(self, LC_WIKILINK_TITLE);
if (!comment) return -1;

if (PyErr_Occurred()) {
PyErr_Clear();
self->head = reset;
PyObject* text = PyUnicode_FromString("<!--");
if (!text) return -1;
@@ -1214,50 +1215,46 @@ Tokenizer_parse_comment(Tokenizer* self)
Py_XDECREF(text);
return -1;
}
return 0;
}
else {
PyObject *class, *token;
PyObject *comment = Tokenizer_parse(self, LC_WIKILINK_TITLE);
if (!comment) return -1;

class = PyObject_GetAttrString(tokens, "CommentStart");
if (!class) {
Py_DECREF(comment);
return -1;
}
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) {
Py_DECREF(comment);
return -1;
}
class = PyObject_GetAttrString(tokens, "CommentStart");
if (!class) {
Py_DECREF(comment);
return -1;
}
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) {
Py_DECREF(comment);
return -1;
}

if (Tokenizer_write(self, token)) {
Py_DECREF(token);
Py_DECREF(comment);
return -1;
}
if (Tokenizer_write(self, token)) {
Py_DECREF(token);
Py_DECREF(comment);
return -1;
}
Py_DECREF(token);

if (Tokenizer_write_all(self, comment)) {
Py_DECREF(comment);
return -1;
}
if (Tokenizer_write_all(self, comment)) {
Py_DECREF(comment);
return -1;
}
Py_DECREF(comment);

class = PyObject_GetAttrString(tokens, "CommentEnd");
if (!class) return -1;
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) return -1;
class = PyObject_GetAttrString(tokens, "CommentEnd");
if (!class) return -1;
token = PyObject_CallObject(class, NULL);
Py_DECREF(class);
if (!token) return -1;

if (Tokenizer_write(self, token)) {
Py_DECREF(token);
return -1;
}
if (Tokenizer_write(self, token)) {
Py_DECREF(token);
self->head += 2;
return -1;
}
Py_DECREF(token);
self->head += 2;
return 0;
}

@@ -1297,7 +1294,7 @@ Tokenizer_parse(Tokenizer* self, Py_ssize_t context)

if (this_data == *"") {
if (this_context & fail_contexts) {
Tokenizer_fail_route(self);
return Tokenizer_fail_route(self);
}
return Tokenizer_pop(self);
}
@@ -1322,7 +1319,7 @@ Tokenizer_parse(Tokenizer* self, Py_ssize_t context)
Tokenizer_handle_template_param_value(self);
}
else if (this_data == next && next == *"}" && this_context & LC_TEMPLATE) {
Tokenizer_handle_template_end(self);
return Tokenizer_handle_template_end(self);
}
else if (this_data == *"|" && this_context & LC_ARGUMENT_NAME) {
Tokenizer_handle_argument_separator(self);
@@ -1360,7 +1357,7 @@ Tokenizer_parse(Tokenizer* self, Py_ssize_t context)
return (PyObject*) Tokenizer_handle_heading_end(self);
}
else if (this_data == *"\n" && this_context & LC_HEADING) {
Tokenizer_fail_route(self);
return Tokenizer_fail_route(self);
}
else if (this_data == *"&") {
Tokenizer_parse_entity(self);
@@ -1434,6 +1431,10 @@ init_tokenizer(void)
Py_INCREF(&TokenizerType);
PyModule_AddObject(module, "CTokenizer", (PyObject*) &TokenizerType);

BadRoute = PyErr_NewException("_tokenizer.BadRoute", NULL, NULL);
Py_INCREF(BadRoute);
PyModule_AddObject(module, "BadRoute", BadRoute);

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



+ 2
- 5
mwparserfromhell/parser/tokenizer.h View File

@@ -27,7 +27,6 @@ SOFTWARE.

#include <Python.h>
#include <math.h>
#include <setjmp.h>
#include <structmember.h>

static const char* MARKERS[] = {
@@ -35,11 +34,9 @@ static const char* MARKERS[] = {
"!", "\n", ""};
static const int NUM_MARKERS = 18;

static jmp_buf exception_env;
static const int BAD_ROUTE = 1;

static PyObject* EMPTY;
static PyObject* NOARGS;
static PyObject* BadRoute;
static PyObject* tokens;


@@ -116,7 +113,7 @@ static int Tokenizer_push_textbuffer(Tokenizer*);
static int Tokenizer_delete_top_of_stack(Tokenizer*);
static PyObject* Tokenizer_pop(Tokenizer*);
static PyObject* Tokenizer_pop_keeping_context(Tokenizer*);
static void Tokenizer_fail_route(Tokenizer*);
static void* Tokenizer_fail_route(Tokenizer*);
static int Tokenizer_write(Tokenizer*, PyObject*);
static int Tokenizer_write_first(Tokenizer*, PyObject*);
static int Tokenizer_write_text(Tokenizer*, PyObject*);


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