103 lines
3.3 KiB
C++
103 lines
3.3 KiB
C++
#ifndef VTR_UTIL_H
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#define VTR_UTIL_H
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#include <vector>
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#include <string>
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#include <cstdarg>
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#include <array>
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namespace vtr {
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//Splits the string 'text' along the specified delimiter characters in 'delims'
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//The split strings (excluding the delimiters) are returned
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std::vector<std::string> split(const char* text, const std::string delims = " \t\n");
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std::vector<std::string> split(const std::string& text, const std::string delims = " \t\n");
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//Returns 'input' with the first instance of 'search' replaced with 'replace'
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std::string replace_first(const std::string& input, const std::string& search, const std::string& replace);
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//Returns 'input' with all instances of 'search' replaced with 'replace'
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std::string replace_all(const std::string& input, const std::string& search, const std::string& replace);
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//Retruns true if str starts with prefix
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bool starts_with(std::string str, std::string prefix);
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//Returns a std::string formatted using a printf-style format string
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std::string string_fmt(const char* fmt, ...);
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//Returns a std::string formatted using a printf-style format string taking
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//an explicit va_list
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std::string vstring_fmt(const char* fmt, va_list args);
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//Joins a sequence by a specified delimeter
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// For example the sequence {"home", "user", "my_files", "test.blif"} with delim="/"
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// would return "home/user/my_files/test.blif"
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template<typename Iter>
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std::string join(Iter begin, Iter end, std::string delim);
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template<typename Container>
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std::string join(Container container, std::string delim);
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template<typename T>
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std::string join(std::initializer_list<T> list, std::string delim);
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/*
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* Legacy c-style function replacements, typically these add extra error checking
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* and/or correct 'unexpected' behaviour of the standard c-functions
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*/
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constexpr size_t bufsize = 32768; /* Maximum line length for various parsing proc. */
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char* strncpy(char* dest, const char* src, size_t size);
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char* strdup(const char* str);
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char* strtok(char* ptr, const char* tokens, FILE* fp, char* buf);
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FILE* fopen(const char* fname, const char* flag);
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int fclose(FILE* f);
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char* fgets(char* buf, int max_size, FILE* fp);
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int atoi(const std::string& value);
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unsigned atou(const std::string& value);
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float atof(const std::string& value);
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double atod(const std::string& value);
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/*
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* File utilities
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*/
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int get_file_line_number_of_last_opened_file();
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bool file_exists(const char* filename);
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bool check_file_name_extension(const char* file_name,
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const char* file_extension);
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extern std::string out_file_prefix;
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/*
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* Legacy ReadLine Tokening
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*/
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std::vector<std::string> ReadLineTokens(FILE* InFile, int* LineNum);
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/*
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* Template implementations
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*/
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template<typename Iter>
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std::string join(Iter begin, Iter end, std::string delim) {
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std::string joined_str;
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for (auto iter = begin; iter != end; ++iter) {
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joined_str += *iter;
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if (iter != end - 1) {
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joined_str += delim;
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}
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}
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return joined_str;
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}
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template<typename Container>
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std::string join(Container container, std::string delim) {
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return join(std::begin(container), std::end(container), delim);
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}
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template<typename T>
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std::string join(std::initializer_list<T> list, std::string delim) {
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return join(list.begin(), list.end(), delim);
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}
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} // namespace vtr
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#endif
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