C++ Boost string algorithm 使用

Posted on 2021-03-22 Edited on 2021-05-31 In C++ Views:

Case Conversion

Algorithm name	Description	Functions
to_upper	Convert a string to upper case	`to_upper_copy()` `to_upper()`
to_lower	Convert a string to lower case	`to_lower_copy()` `to_lower()`

Trimming

Algorithm name	Description	Functions
trim_left	Remove leading spaces from a string	`trim_left_copy_if()` `trim_left_if()` `trim_left_copy()` `trim_left()`
trim_right	Remove trailing spaces from a string	`trim_right_copy_if()` `trim_right_if()` `trim_right_copy()` `trim_right()`
trim	Remove leading and trailing spaces from a string	`trim_copy_if()` `trim_if()` `trikm_copy()` `trim()`

Predicates

Algorithm name	Description	Functions
starts_with	Check if a string is a prefix of the other one	`starts_with()` `istarts_with()`
ends_with	Check if a string is a suffix of the other one	`ends_with()` `iends_with()`
contains	Check if a string is contained of the other one	`contains()` `icontains()`
equals	Check if two strings are equal	`equals()` `iequals()`
lexicographical_compare	Check if a string is lexicographically less then another one	`lexicographical_compare()` `ilexicographical_compare()`
all	Check if all elements of a string satisfy the given predicate	`all()`

Find algorithms

Algorithm name	Description	Functions
find_first	Find the first occurrence of a string in the input	`find_first()` `ifind_first()`
find_last	Find the last occurrence of a string in the input	`find_last()` `ifind_last()`
find_nth	Find the nth (zero-indexed) occurrence of a string in the input	`find_nth()` `ifind_nth()`
find_head	Retrieve the head of a string	`find_head()`
find_tail	Retrieve the tail of a string	`find_tail()`
find_token	Find first matching token in the string	`find_token()`
find_regex	Use the regular expression to search the string	`find_regex()`
find	Generic find algorithm	`find()`

Erase/Replace

Algorithm name	Description	Functions
replace/erase_first	Replace/Erase the first occurrence of a string in the input	`replace_first()` `replace_first_copy()` `ireplace_first()` `ireplace_first_copy()` `erase_first()` `erase_first_copy()` `ierase_first()` `ierase_first_copy()`
replace/erase_last	Replace/Erase the last occurrence of a string in the input	`replace_last()` `replace_last_copy()` `ireplace_last()` `ireplace_last_copy()` `erase_last()` `erase_last_copy()` `ierase_last()` `ierase_last_copy()`
replace/erase_nth	Replace/Erase the nth (zero-indexed) oc- currence of a string in the input	`replace_nth()` `replace_nth_copy()` `ireplace_nth()` `ireplace_nth_copy()` `erase_nth()` `erase_nth_copy()` `ierase_nth()` `ierase_nth_copy()`
replace/erase_all	Replace/Erase the all occurrences of a string in the input	`replace_all()` `replace_all_copy()` `ireplace_all()` `ireplace_all_copy()` `erase_all()` `erase_all_copy()` `ierase_all()` `ierase_all_copy()`
replace/erase_head	Replace/Erase the head of the input	replace_head() replace_head_copy() erase_head() erase_head_copy()
replace/erase_tail	Replace/Erase the tail of the input	`replace_tail() replace_tail_copy() erase_tail()` `erase_tail_copy()`
replace/erase_regex	Replace/Erase a substring matching the given regular expression	`replace_regex()` `replace_regex_copy()` `erase_regex()` `erase_regex_copy()`

Algorithm name	Description	Functions
replace/erase_regex_all	Replace/Erase all substrings matching the given regular expression	`replace_all_regex()` `replace_all_regex_copy()` `erase_all_regex()` `erase_all_regex_copy()`
find_format	Generic replace algorithm	`find_format()` `find_format_copy()` `find_format_all()` `find_format_all_copy()`

Split

Algorithm name	Description	Functions
find_all	Find/Extract all matching substrings in the input	find_all() ifind_all() find_all_regex()
split	Split input into parts	split() split_regex()
iter_find	Iteratively apply the finder to the input to find all matching substrings	iter_find()
iter_split	Use the finder to find matching substrings in the input and use them as separators to split the input into parts	iter_split()

Join

Algorithm name	Description	Functions
join	Join all elements in a container into a single string	join
join_if	Join all elements in a container that satis- fies the condition into a single string	join_if()

Finders and Formatters

Finders

Finder	Description	Generators
first_finder	Search for the first match of the string in an input	`first_finder()`
last_finder	Search for the last match of the string in an input	`last_finder()`
nth_finder	Search for the nth (zero-indexed) match of the string in an input	`nth_finder()`
head_finder	Retrieve the head of an input	`head_finder()`
tail_finder	Retrieve the tail of an input	`tail_finder()`
token_finder	Search for a matching token in an input	`token_finder()`
range_finder	Do no search, always returns the given range	`range_finder()`
regex_finder	Search for a substring matching the given regex	`regex_finder()`

Formatters

Formatter	Description	Generators
const_formatter	Constant formatter. Always return the specified string	`const_formatter()`
identity_formatter	Identity formatter. Return unmodified in- put input	`identity_formatter()`
empty_formatter	Null formatter. Always return an empty string	`empty_formatter()`
regex_formatter	Regex formatter. Format regex match us- ing the specification in the format string	`regex_formatter()`

Iterators

Find Iterators

Iterator name	Description	Iterator class
find_iterator	Iterates through matching substrings in the input	find_iterator
split_iterator	Iterates through gaps between matching substrings in the input	split_iterator

Classification

Predicates

Predicate name	Description	Generator
is_classified	Generic ctype mask based classification	is_classified()
is_space	Recognize spaces	is_space()
is_alnum	Recognize alphanumeric characters	is_alnum()
is_alpha	Recognize letters	is_alpha()
is_cntrl	Recognize control characters	is_cntrl()
is_digit	Recognize decimal digits	is_digit()
is_graph	Recognize graphical characters	is_graph()
is_lower	Recognize lower case characters	is_lower()
is_print	Recognize printable characters	is_print()
is_punct	Recognize punctuation characters	is_punct()
is_upper	Recognize uppercase characters	is_upper()
is_xdigit	Recognize hexadecimal digits	is_xdigit()
is_any_of	Recognize any of a sequence of characters	is_any_of()
is_from_range	Recognize characters inside a min..max range	is_from_range()

示例

相关参考

boost 处理字符串_dodo_check的博客-CSDN博客

boost的字符串处理函数——string algorithm - 天方 - 博客园 (cnblogs.com)

Chapter 5. Boost.StringAlgorithms (theboostcpplibraries.com)

Chapter 21. Boost String Algorithms Library - 1.46.1

C++ Boost String Algorithms Library - GeeksforGeeks

Chapter 32. Boost String Algorithms Library - 1.61.0

boostorg/algorithm: Boost.org algorithm module (github.com)

Boost String Algorithms Library (ethz.ch)