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## Quick Reference

### Algorithms

Table 21.1. 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()`

Table 21.2. 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()` `trim_copy()` `trim()`

Table 21.3. 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()`

Table 21.4. 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()`

Table 21.5. 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) occurrence 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()`
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()()`

Table 21.6. 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()`

Table 21.7. 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 satisfies the condition into a single string | `join_if()`

### Finders and Formatters

Table 21.8. 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()`

Table 21.9. Formatters

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

### Iterators

Table 21.10. 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

Table 21.11. 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()`

Last revised: February 27, 2008 at 20:00:24 +0000 |