char const* MTD_FLASHMEM ParameterReplacer::replaceTag(char const* curc)
{
char const* tagEnd;
char const* tagStart = extractTagStr(curc, &tagEnd);
if (getChar(tagStart) == '#')
{
// replace multiple parameters ('0param', '1param', ...)
++tagStart;
uint32_t tagLen = tagEnd - tagStart;
char tag[tagLen];
f_memcpy(tag, tagStart, tagLen);
tag[tagLen] = 0;
for (uint32_t index = 0; ; ++index)
{
char const* fulltagname = f_printf(FSTR("%d%s"), index, tag);
Params::Item* item = m_params->getItem(fulltagname);
if (item)
m_result.addChunks(&item->value); // push parameter content
else
break;
}
}
else
{
// replace one parameter
Params::Item* item = m_params->getItem(tagStart, tagEnd);
if (item)
m_result.addChunks(&item->value); // push parameter content
}
return tagEnd + 2; // bypass "}}"
}
void MTD_FLASHMEM ParameterReplacer::processInput()
{
char const* curc = m_strStart;
char const* start = curc;
char const* curBlockKey = NULL;
char const* curBlockKeyEnd = NULL;
while (curc != m_strEnd)
{
char c0 = getChar(curc);
if (c0 == '{')
{
char c1 = getChar(curc + 1);
if (c1 == '{')
{
// found "{{"
// push previous content
m_result.addChunk(start, curc - start, false);
// process parameter tag
start = curc = replaceTag(curc);
continue;
}
else if (c1 == '%')
{
// found "{%"
// push previous content
if (curBlockKey && curBlockKeyEnd)
{
m_result.addChunk(start, curc - start, false);
m_blocks.add(curBlockKey, curBlockKeyEnd, m_result);
m_result.clear();
}
// process block tag
curBlockKey = extractTagStr(curc, &curBlockKeyEnd);
start = curc = curBlockKeyEnd + 2; // bypass "%}"
// if this is the first block tag then this is the template file name
if (m_template.get() == NULL)
{
m_template.reset(f_strdup(curBlockKey, curBlockKeyEnd));
curBlockKey = NULL;
curBlockKeyEnd = NULL;
}
continue;
}
}
++curc;
}
m_result.addChunk(start, m_strEnd - start, false);
if (curBlockKey && curBlockKeyEnd)
{
m_blocks.add(curBlockKey, curBlockKeyEnd, m_result);
m_result.clear();
}
}
