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Tokenizer cleanup; make inline table syntax invalid as it should be.

tags/v0.4
Ben Kurtovic 10 年前
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640005dbb2
共有 2 个文件被更改,包括 61 次插入65 次删除
  1. +28
    -28
      mwparserfromhell/parser/tokenizer.c
  2. +33
    -37
      mwparserfromhell/parser/tokenizer.py

+ 28
- 28
mwparserfromhell/parser/tokenizer.c 查看文件

@@ -2423,34 +2423,6 @@ static int Tokenizer_handle_dl_term(Tokenizer* self)
}

/*
Handle the end of the stream of wikitext.
*/
static PyObject* Tokenizer_handle_end(Tokenizer* self, uint64_t context)
{
PyObject *token, *text, *trash;
int single;

if (context & AGG_FAIL) {
if (context & LC_TAG_BODY) {
token = PyList_GET_ITEM(self->topstack->stack, 1);
text = PyObject_GetAttrString(token, "text");
if (!text)
return NULL;
single = IS_SINGLE(text);
Py_DECREF(text);
if (single)
return Tokenizer_handle_single_tag_end(self);
}
else if (context & AGG_DOUBLE) {
trash = Tokenizer_pop(self);
Py_XDECREF(trash);
}
return Tokenizer_fail_route(self);
}
return Tokenizer_pop(self);
}

/*
Emit a table tag.
*/
static int
@@ -2847,6 +2819,34 @@ Tokenizer_handle_table_cell_end(Tokenizer* self, int reset_for_style)
}

/*
Handle the end of the stream of wikitext.
*/
static PyObject* Tokenizer_handle_end(Tokenizer* self, uint64_t context)
{
PyObject *token, *text, *trash;
int single;

if (context & AGG_FAIL) {
if (context & LC_TAG_BODY) {
token = PyList_GET_ITEM(self->topstack->stack, 1);
text = PyObject_GetAttrString(token, "text");
if (!text)
return NULL;
single = IS_SINGLE(text);
Py_DECREF(text);
if (single)
return Tokenizer_handle_single_tag_end(self);
}
else if (context & AGG_DOUBLE) {
trash = Tokenizer_pop(self);
Py_XDECREF(trash);
}
return Tokenizer_fail_route(self);
}
return Tokenizer_pop(self);
}

/*
Make sure we are not trying to write an invalid character. Return 0 if
everything is safe, or -1 if the route must be failed.
*/


+ 33
- 37
mwparserfromhell/parser/tokenizer.py 查看文件

@@ -991,17 +991,6 @@ class Tokenizer(object):
else:
self._emit_text("\n")

def _handle_end(self):
"""Handle the end of the stream of wikitext."""
if self._context & contexts.FAIL:
if self._context & contexts.TAG_BODY:
if is_single(self._stack[1].text):
return self._handle_single_tag_end()
if self._context & contexts.DOUBLE:
self._pop()
self._fail_route()
return self._pop()

def _emit_table_tag(self, open_open_markup, tag, style, padding,
close_open_markup, contents, open_close_markup):
"""Emit a table tag."""
@@ -1020,22 +1009,21 @@ class Tokenizer(object):
self._emit_text(tag)
self._emit(tokens.TagCloseClose())

def _parse_as_table_style(self, end_token, break_on_table_end=False):
def _parse_as_table_style(self, end_token):
"""Parse until ``end_token`` as style attributes for a table."""
data = _TagOpenData()
data.context = _TagOpenData.CX_ATTR_READY
while True:
this, next = self._read(), self._read(1)
table_end = break_on_table_end and this == "|" and next == "}"
this = self._read()
can_exit = (not data.context & data.CX_QUOTED or
data.context & data.CX_NOTE_SPACE)
if (this == end_token and can_exit) or table_end:
if this == end_token and can_exit:
if data.context & (data.CX_ATTR_NAME | data.CX_ATTR_VALUE):
self._push_tag_buffer(data)
if this.isspace():
data.padding_buffer["first"] += this
return data.padding_buffer["first"]
elif this is self.END or table_end or this == end_token:
elif this is self.END or this == end_token:
if self._context & contexts.TAG_ATTR:
if data.context & data.CX_QUOTED:
# Unclosed attribute quote: reset, don't die
@@ -1052,31 +1040,27 @@ class Tokenizer(object):
def _handle_table_start(self):
"""Handle the start of a table."""
reset = self._head + 1
style, table = None, None
self._head += 2

self._push(contexts.TABLE_OPEN)
try:
padding = self._parse_as_table_style("\n", break_on_table_end=True)
padding = self._parse_as_table_style("\n")
except BadRoute:
self._head = reset
self._emit_text("{|")
return
style = self._pop()
# continue to parse if it is NOT an inline table
if "\n" in padding:
self._head += 1
try:
table = self._parse(contexts.TABLE_OPEN)
except BadRoute:
self._head = reset
self._emit_text("{|")
return
else:
# close tag
self._head += 2

self._head += 1
try:
table = self._parse(contexts.TABLE_OPEN)
except BadRoute:
self._head = reset
self._emit_text("{|")
return

self._emit_table_tag("{|", "table", style, padding, None, table, "|}")
# offset displacement done by _parse()
# Offset displacement done by _parse():
self._head -= 1

def _handle_table_end(self):
@@ -1087,7 +1071,6 @@ class Tokenizer(object):
def _handle_table_row(self):
"""Parse as style until end of the line, then continue."""
reset = self._head
style, padding = None, ""
self._head += 2
if not self._can_recurse():
self._emit_text("|-")
@@ -1102,7 +1085,8 @@ class Tokenizer(object):
self._pop()
raise
style = self._pop()
# don't parse the style separator

# Don't parse the style separator:
self._head += 1
try:
row = self._parse(contexts.TABLE_OPEN | contexts.TABLE_ROW_OPEN)
@@ -1110,8 +1094,9 @@ class Tokenizer(object):
self._head = reset
self._pop()
raise

self._emit_table_tag("|-", "tr", style, padding, None, row, "")
# offset displacement done by parse()
# Offset displacement done by parse():
self._head -= 1

def _handle_table_row_end(self):
@@ -1146,7 +1131,7 @@ class Tokenizer(object):
line_context)
padding = self._parse_as_table_style("|")
style = self._pop()
# Don't parse the style separator
# Don't parse the style separator:
self._head += 1
try:
cell = self._parse(contexts.TABLE_OPEN |
@@ -1161,10 +1146,10 @@ class Tokenizer(object):
close_open_markup = "|" if reset_for_style else None
self._emit_table_tag(markup, tag, style, padding, close_open_markup,
cell, "")
# keep header/cell line contexts
# Keep header/cell line contexts:
self._context |= cell_context & (contexts.TABLE_TH_LINE |
contexts.TABLE_TD_LINE)
# offset displacement done by parse()
# Offset displacement done by parse():
self._head -= 1

def _handle_table_cell_end(self, reset_for_style=False):
@@ -1176,6 +1161,17 @@ class Tokenizer(object):
self._context &= ~contexts.TABLE_CELL_STYLE
return self._pop(keep_context=True)

def _handle_end(self):
"""Handle the end of the stream of wikitext."""
if self._context & contexts.FAIL:
if self._context & contexts.TAG_BODY:
if is_single(self._stack[1].text):
return self._handle_single_tag_end()
if self._context & contexts.DOUBLE:
self._pop()
self._fail_route()
return self._pop()

def _verify_safe(self, this):
"""Make sure we are not trying to write an invalid character."""
context = self._context


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