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mwparserfromhell
mirror of https://github.com/earwig/mwparserfromhell
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parse_italics_and_bold() and parse_style()

tags/v0.3
Ben Kurtovic 10 years ago
parent
22d7ad032a
commit
34b3756285
1 changed files with 135 additions and 70 deletions
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  1. +135
    -70
      mwparserfromhell/parser/tokenizer.c

+ 135
- 70
mwparserfromhell/parser/tokenizer.c View File

@@ -1886,6 +1886,7 @@ static int Tokenizer_emit_style_tag(Tokenizer* self, char tag, int ticks,
return -1;
}
Py_DECREF(token);
Py_DECREF(body);
return 0;
}

@@ -1953,42 +1954,82 @@ static int Tokenizer_parse_bold(Tokenizer* self)
*/
static int Tokenizer_parse_italics_and_bold(Tokenizer* self)
{
// reset = self._head
// try:
// stack = self._parse(contexts.STYLE_BOLD)
// except BadRoute:
// self._head = reset
// try:
// stack = self._parse(contexts.STYLE_ITALICS)
// except BadRoute:
// self._head = reset
// self._emit_text("'''''")
// else:
// reset = self._head
// try:
// stack2 = self._parse(contexts.STYLE_BOLD)
// except BadRoute:
// self._head = reset
// self._emit_text("'''")
// self._emit_style_tag("i", "''", stack)
// else:
// self._push()
// self._emit_style_tag("i", "''", stack)
// self._emit_all(stack2)
// self._emit_style_tag("b", "'''", self._pop())
// else:
// reset = self._head
// try:
// stack2 = self._parse(contexts.STYLE_ITALICS)
// except BadRoute:
// self._head = reset
// self._emit_text("''")
// self._emit_style_tag("b", "'''", stack)
// else:
// self._push()
// self._emit_style_tag("b", "'''", stack)
// self._emit_all(stack2)
// self._emit_style_tag("i", "''", self._pop())
Py_ssize_t reset = self->head;
PyObject *stack, *stack2;

stack = Tokenizer_parse(self, LC_STYLE_BOLD, 1);
if (BAD_ROUTE) {
RESET_ROUTE();
self->head = reset;
stack = Tokenizer_parse(self, LC_STYLE_ITALICS, 1);
if (BAD_ROUTE) {
RESET_ROUTE();
self->head = reset;
if (Tokenizer_emit_text(self, *"'"))
return -1;
if (Tokenizer_emit_text(self, *"'"))
return -1;
if (Tokenizer_emit_text(self, *"'"))
return -1;
if (Tokenizer_emit_text(self, *"'"))
return -1;
return Tokenizer_emit_text(self, *"'");
}
if (!stack)
return -1;
reset = self->head;
stack2 = Tokenizer_parse(self, LC_STYLE_BOLD, 1);
if (BAD_ROUTE) {
RESET_ROUTE();
self->head = reset;
if (Tokenizer_emit_text(self, *"'"))
return -1;
if (Tokenizer_emit_text(self, *"'"))
return -1;
if (Tokenizer_emit_text(self, *"'"))
return -1;
return Tokenizer_emit_style_tag(self, *"i", 2, stack);
}
if (!stack2)
return -1;
if (Tokenizer_push(self, 0))
return -1;
if (Tokenizer_emit_style_tag(self, *"i", 2, stack))
return -1;
if (Tokenizer_emit_all(self, stack2))
return -1;
Py_DECREF(stack2);
stack2 = Tokenizer_pop(self);
if (!stack2)
return -1;
return Tokenizer_emit_style_tag(self, *"b", 3, stack2);
}
if (!stack)
return -1;
reset = self->head;
stack2 = Tokenizer_parse(self, LC_STYLE_ITALICS, 1);
if (BAD_ROUTE) {
RESET_ROUTE();
self->head = reset;
if (Tokenizer_emit_text(self, *"'"))
return -1;
if (Tokenizer_emit_text(self, *"'"))
return -1;
return Tokenizer_emit_style_tag(self, *"b", 3, stack);
}
if (!stack2)
return -1;
if (Tokenizer_push(self, 0))
return -1;
if (Tokenizer_emit_style_tag(self, *"b", 3, stack))
return -1;
if (Tokenizer_emit_all(self, stack2))
return -1;
Py_DECREF(stack2);
stack2 = Tokenizer_pop(self);
if (!stack2)
return -1;
return Tokenizer_emit_style_tag(self, *"i", 2, stack2);
}

/*
@@ -1996,39 +2037,63 @@ static int Tokenizer_parse_italics_and_bold(Tokenizer* self)
*/
static PyObject* Tokenizer_parse_style(Tokenizer* self)
{
// self._head += 2
// ticks = 2
// while self._read() == "'":
// self._head += 1
// ticks += 1
// italics = self._context & contexts.STYLE_ITALICS
// bold = self._context & contexts.STYLE_BOLD
// if ticks > 5:
// self._emit_text("'" * (ticks - 5))
// ticks = 5
// elif ticks == 4:
// self._emit_text("'")
// ticks = 3
// if (italics and ticks in (2, 5)) or (bold and ticks in (3, 5)):
// if ticks == 5:
// self._head -= 3 if italics else 2
// return self._pop()
// elif not self._can_recurse():
// if ticks == 3:
// if self._context & contexts.STYLE_SECOND_PASS:
// self._emit_text("'")
// return self._pop()
// self._context |= contexts.STYLE_PASS_AGAIN
// self._emit_text("'" * ticks)
// elif ticks == 2:
// self._parse_italics()
// elif ticks == 3:
// if self._parse_bold():
// return self._pop()
// elif ticks == 5:
// self._parse_italics_and_bold()
// self._head -= 1
// ## we can return Py_None for non-error empty returns
int context = self->topstack->context, ticks = 2, i;

self->head += 2;
while (Tokenizer_READ(self, 0) == *"'") {
self->head++;
ticks++;
}
if (ticks > 5) {
for (i = 0; i < ticks - 5; i++) {
if (Tokenizer_emit_text(self, *"'"))
return NULL;
}
ticks = 5;
}
else if (ticks == 4) {
if (Tokenizer_emit_text(self, *"'"))
return NULL;
ticks = 3;
}
if ((context & LC_STYLE_ITALICS && (ticks == 2 || ticks == 5)) ||
(context & LC_STYLE_BOLD && (ticks == 3 || ticks == 5))) {
if (ticks == 5)
self->head -= context & LC_STYLE_ITALICS ? 3 : 2;
return Tokenizer_pop(self);
}
if (!Tokenizer_CAN_RECURSE(self)) {
if (ticks == 3) {
if (context & LC_STYLE_SECOND_PASS) {
if (Tokenizer_emit_text(self, *"'"))
return NULL;
return Tokenizer_pop(self);
}
self->topstack->context |= LC_STYLE_PASS_AGAIN;
}
for (i = 0; i < ticks; i++) {
if (Tokenizer_emit_text(self, *"'"))
return NULL;
}
}
else if (ticks == 2) {
if (Tokenizer_parse_italics(self))
return NULL;
}
else if (ticks == 3) {
switch (Tokenizer_parse_bold(self)) {
case 1:
return Tokenizer_pop(self);
case -1:
return NULL;
}
}
else {
if (Tokenizer_parse_italics_and_bold(self))
return NULL;
}
self->head--;
return Py_None;
}

/*
@@ -2339,7 +2404,7 @@ static PyObject* Tokenizer_parse(Tokenizer* self, int context, int push)
return Tokenizer_handle_tag_close_close(self);
else if (this == next && next == *"'") {
temp = Tokenizer_parse_style(self);
if (temp)
if (temp != Py_None)
return temp;
}
else if (last == *"\n" || last == *"") {


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