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/**
* @file punctuators.cpp
* Manages the table of punctuators.
*
* @author Ben Gardner
* @license GPL v2+
*/
#include "punctuators.h"
//#include "log_rules.h"
#include "prototypes.h"
#include <algorithm>
constexpr static auto LCURRENT = LOTHER;
using namespace std;
using namespace uncrustify;
/**
*
* The file "punctuator_table.h" was generated by punc.py from this file.
* If you change one of the below symbol tables, re-run punc.py.
* $ python scripts/punc.py > src/punctuator_table.h
* now automatically with CMakeLists.txt
* Automatically generated by <code>scripts/make_punctuator_table.py</code>
*
* NOTE: the tables below do not need to be sorted.
*/
#include "symbols_table.h"
// must be positioned here, after all symbolsX[], because punc_table uses them
#include "punctuator_table.h"
const chunk_tag_t *find_punctuator(const char *str, int lang_flags)
{
if ( str == nullptr
|| str[0] == '\0')
{
return(nullptr);
}
const auto binary_find = [](const lookup_entry_t *first, const lookup_entry_t *last, const char &value)
{
const auto tmp = std::lower_bound(first, last, value,
lookup_entry_t::comperator());
return((value == tmp->ch) ? tmp : nullptr);
};
const chunk_tag_t *match = nullptr;
const auto *parent = punc_table; //!< graph in table form, initially point at first entry
auto ch_idx = int{};
while ( ch_idx < 6
&& str[ch_idx] != '\0') //!< symbols6: max punc len = 6
{
// search for next parent node in all current child nodes
parent = binary_find(parent, next(parent, parent->left_in_group), str[ch_idx]);
if (parent == nullptr)
{
break; // no nodes found with the searched char
}
log_rule_B("enable_digraphs");
if ( parent->tag != nullptr
&& (parent->tag->lang_flags & lang_flags) != 0 // punctuator lang and processing lang match
&& ( (parent->tag->lang_flags & FLAG_DIG) == 0 // punctuator is not a di/tri-graph
|| options::enable_digraphs())) // or di/tri-graph processing is enabled
{
match = parent->tag;
}
if (parent->next_idx == 0)
{
break; // no child nodes, leaf reached
}
parent = &punc_table[parent->next_idx]; // point at the first child node
ch_idx++;
continue;
}
return(match);
} // find_punctuator
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