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删除Scanner.cpp

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Gary Gan 2025-06-04 21:53:51 +08:00
parent b6d6df0894
commit 61f5dde8c9
1 changed files with 0 additions and 94 deletions
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94
src/Scanner.cpp
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@ -1,94 +0,0 @@
#include "Scanner.h"
#include <sstream>
int Scanner::process_const_table(int index) {
return 0;
}
int Scanner::process_identifier_table(int index) {
std::stringstream buffer;
int old_index = index;
if (std::isalpha(m_source_code[index])) {
buffer << m_source_code[index];
index += 1;
while(std::isalnum(m_source_code[index])) {
buffer << m_source_code[index];
index += 1;
}
std::string identifier = buffer.str();
for (const auto& key : m_tables.KeyTable) {
if (identifier == key.second) {
return 0;
}
}
m_tables.IdTable.insert({identifier_index, identifier});
m_token_list.push_back(Token{identifier_index, ID_TABLE});
identifier_index++;
return index - old_index;
} else {
return 0;
}
}
int Scanner::process_key_table(int index) {
return 0;
}
int Scanner::process_punct_table(int index) {
//identify the Punct in map
string s;
int n = this->m_source_code.size();
char c1= this->m_source_code[index];
char c2 = '@';
char c3 = '@';
if (index + 1 < n) c2 = this->m_source_code[index + 1];
if (index + 2 < n) c3 = this->m_source_code[index + 2];
if (((c1 == c2 && c2 == '<') || (c1 == c2&& c2 == '>'))&& c3 =='=') {
this->m_token_list.push_back({c1=='<'?31:32,PUNCT_TABLE});
return 3;
}
if (c1 == c2 ) {
if (c1 =='=') {
this->m_token_list.push_back({15,PUNCT_TABLE});
return 2;
}
if (c1 =='|') {
this->m_token_list.push_back({21,PUNCT_TABLE});
return 2;
}
if (c1=='&') {
this->m_token_list.push_back({20,PUNCT_TABLE});
return 2;
}
if (c1=='<') {
this->m_token_list.push_back({9,PUNCT_TABLE});
return 2;
}
if (c1=='>') {
this->m_token_list.push_back({10,PUNCT_TABLE});
return 2;
}
}
string t;
t.push_back(c1);
t.push_back(c2);
for (auto e : this->m_tables.PunctTable) {
if (e.second == t) {
this->m_token_list.push_back({e.first,PUNCT_TABLE});
return 2;
}
}
t.pop_back();
for (auto e : this->m_tables.PunctTable) {
if (e.second == t) {
this->m_token_list.push_back({e.first,PUNCT_TABLE});
return 1;
}
}
return 0;
}