ZYM/BH-Bookstore-2023
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fix: fix some bug in lexer

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This commit is contained in:
ZhuangYumin
2023-12-14 03:23:10 +00:00
parent 7ca2b28548
commit bf676afd77
3 changed files with 12 additions and 4 deletions
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6
backend/src/lexer.cpp
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@ -1,5 +1,6 @@
#include "lexer.h"
#include "bs-utility.h"
// clang-format off
/**
* @brief Lexer for command "su"
@ -336,7 +337,7 @@ bool CommandModifyLexer(const std::string &command, std::string &ISBN,
std::string &name, std::string &author,
std::string &keyword, double &price) {
static std::basic_regex main_pattern(
R"(^ *modify(?: +-ISBN=(?:\S{1,20})| +-name=\"(?:[^\s"]{1,60})\"| +-author=\"(?:[^\s"]{1,60})\"| +-keyword=\"(?:[^\s"]{1,60})\"| +-price=[0-9]{1,10}\.[0-9]{2})+ *$)",
R"(^ *modify(?: +-ISBN=(?:\S{1,20})| +-name=\"(?:[^\s"]{1,60})\"| +-author=\"(?:[^\s"]{1,60})\"| +-keyword=\"(?:[^\s"]{1,60})\"| +-price=[0-9]{1,10}(?:\.[0-9]{1,2})?)+ *$)",
std::regex_constants::optimize);
if (std::regex_match(command, main_pattern)) {
std::stringstream ss(command);
@ -349,6 +350,7 @@ bool CommandModifyLexer(const std::string &command, std::string &ISBN,
price = -1;
while (ss >> token) {
if (token[1] == 'I') {
// debugPrint("ISBN's token is ", token);
ISBN = token.substr(6);
} else if (token[1] == 'n') {
name = token.substr(6 + 1, token.size() - 7 - 1);
@ -383,7 +385,7 @@ bool CommandModifyLexer(const std::string &command, std::string &ISBN,
bool CommandImportLexer(const std::string &command, int &quantity,
double &total_cost) {
static std::basic_regex main_pattern(
R"(^ *import +[0-9]{1,10} +[0-9]{1,10}\.[0-9]{2} *$)",
R"(^ *import +[0-9]{1,10} +[0-9]{1,10}(?:\.[0-9]{1,2})? *$)",
std::regex_constants::optimize);
if (std::regex_match(command, main_pattern)) {
std::stringstream ss(command);