106 lines
3.0 KiB
C++
106 lines
3.0 KiB
C++
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/************************************************************************
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* Member functions for WildCardString class
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***********************************************************************/
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#include <cstring>
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/* Headers from vtrutil library */
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#include "vtr_assert.h"
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#include "vtr_log.h"
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#include "openfpga_wildcard_string.h"
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/* namespace openfpga begins */
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namespace openfpga {
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/************************************************************************
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* Constructors
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***********************************************************************/
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WildCardString::WildCardString(const std::string& data) {
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set_data(data);
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}
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/************************************************************************
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* Public Accessors
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***********************************************************************/
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std::string WildCardString::data() const {
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return data_;
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}
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/************************************************************************
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* Public Mutators
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***********************************************************************/
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void WildCardString::set_data(const std::string& data) {
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data_ = data;
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set_default_wildcard_char();
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set_default_sensitive_chars();
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apply_wildcard_char();
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compress();
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}
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/************************************************************************
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* Internal Mutators
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***********************************************************************/
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void WildCardString::set_default_wildcard_char() {
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wildcard_char_ = '*';
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}
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void WildCardString::set_default_sensitive_chars() {
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sensitive_chars_.clear();
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sensitive_chars_.reserve(10);
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sensitive_chars_.push_back('0');
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sensitive_chars_.push_back('1');
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sensitive_chars_.push_back('2');
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sensitive_chars_.push_back('3');
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sensitive_chars_.push_back('4');
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sensitive_chars_.push_back('5');
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sensitive_chars_.push_back('6');
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sensitive_chars_.push_back('7');
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sensitive_chars_.push_back('8');
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sensitive_chars_.push_back('9');
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}
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void WildCardString::apply_wildcard_char() {
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/* Step by step:
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* For each sensitive character,
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* replace all of its occurance in the string data_ with wildcard character
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*/
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for (const char& char_to_replace : sensitive_chars_) {
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size_t cur_pos = 0;
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std::string::size_type found;
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while (std::string::npos != (found = data_.find_first_of(char_to_replace, cur_pos))) {
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data_.replace(found, 1, 1, wildcard_char_);
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cur_pos = found + 1;
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}
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}
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}
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void WildCardString::compress() {
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for (std::string::size_type i = 0; i < data_.size(); ++i) {
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/* Care only wildcard character */
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if (wildcard_char_ != data_[i]) {
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continue;
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}
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/* Finish if this is the end of string */
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if (data_.size() - 1 == i) {
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break;
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}
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/* Try to find the next element and see if the same as wild card
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* Keep erase the next element until we have a non-wildcard character
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*/
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while (data_[i] == data_[i + 1]) {
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/* Erase the next element */
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data_.erase(i + 1, 1);
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/* Finish if this is the end of string */
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if (data_.size() - 1 == i) {
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break;
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}
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}
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}
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}
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} /* namespace openfpga ends */
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