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<section id="string_algo.quickref" last-revision="$Date$">

<title>Quick Reference</title>

<using-namespace name="boost"/>

<using-namespace name="boost::algorithm"/>

<section>

<title>Algorithms</title>

<table>

<title>Case Conversion</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Algorithm name</entry>

<entry>Description</entry>

<entry>Functions</entry>

</row>

</thead>

<tbody>

<row>

<entry><code>to_upper</code></entry>

<entry>Convert a string to upper case</entry>

<entry>

<functionname>to_upper_copy()</functionname>

<sbr/>

<functionname>to_upper()</functionname>

</entry>

</row>

<row>

<entry><code>to_lower</code></entry>

<entry>Convert a string to lower case</entry>

<entry>

<functionname>to_lower_copy()</functionname>

<sbr/>

<functionname>to_lower()</functionname>

</entry>

</row>

</tbody>

</tgroup>

</table>

<table>

<title>Trimming</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Algorithm name</entry>

<entry>Description</entry>

<entry>Functions</entry>

</row>

</thead>

<tbody>

<row>

<entry><code>trim_left</code></entry>

<entry>Remove leading spaces from a string</entry>

<entry>

<functionname>trim_left_copy_if()</functionname>

<sbr/>

<functionname>trim_left_if()</functionname>

<sbr/>

<functionname>trim_left_copy()</functionname>

<sbr/>

<functionname>trim_left()</functionname>

</entry>

</row>

<row>

<entry><code>trim_right</code></entry>

<entry>Remove trailing spaces from a string</entry>

<entry>

<functionname>trim_right_copy_if()</functionname>

<sbr/>

<functionname>trim_right_if()</functionname>

<sbr/>

<functionname>trim_right_copy()</functionname>

<sbr/>

<functionname>trim_right()</functionname>

</entry>

</row>

<row>

<entry><code>trim</code></entry>

<entry>Remove leading and trailing spaces from a string</entry>

<entry>

<functionname>trim_copy_if()</functionname>

<sbr/>

<functionname>trim_if()</functionname>

<sbr/>

<functionname>trim_copy()</functionname>

<sbr/>

<functionname>trim()</functionname>

</entry>

</row>

</tbody>

</tgroup>

</table>

<table>

<title>Predicates</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Algorithm name</entry>

<entry>Description</entry>

<entry>Functions</entry>

</row>

</thead>

<tbody>

<row>

<entry><code>starts_with</code></entry>

<entry>Check if a string is a prefix of the other one</entry>

<entry>

<functionname>starts_with()</functionname>

<sbr/>

<functionname>istarts_with()</functionname>

</entry>

</row>

<row>

<entry><code>ends_with</code></entry>

<entry>Check if a string is a suffix of the other one</entry>

<entry>

<functionname>ends_with()</functionname>

<sbr/>

<functionname>iends_with()</functionname>

</entry>

</row>

<row>

<entry><code>contains</code></entry>

<entry>Check if a string is contained of the other one</entry>

<entry>

<functionname>contains()</functionname>

<sbr/>

<functionname>icontains()</functionname>

</entry>

</row>

<row>

<entry><code>equals</code></entry>

<entry>Check if two strings are equal</entry>

<entry>

<functionname>equals()</functionname>

<sbr/>

<functionname>iequals()</functionname>

</entry>

</row>

<row>

<entry><code>lexicographical_compare</code></entry>

<entry>Check if a string is lexicographicaly less then another one</entry>

<entry>

<functionname>lexicographical_compare()</functionname>

<sbr/>

<functionname>ilexicographical_compare()</functionname>

</entry>

</row>

<row>

<entry><code>all</code></entry>

<entry>Check if all elements of a string satisfy the given predicate</entry>

<entry>

<functionname>all()</functionname>

</entry>

</row>

</tbody>

</tgroup>

</table>

<table>

<title>Find algorithms</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Algorithm name</entry>

<entry>Description</entry>

<entry>Functions</entry>

</row>

</thead>

<tbody>

<row>

<entry>find_first</entry>

<entry>Find the first occurrence of a string in the input</entry>

<entry>

<functionname>find_first()</functionname>

<sbr/>

<functionname>ifind_first()</functionname>

</entry>

</row>

<row>

<entry>find_last</entry>

<entry>Find the last occurrence of a string in the input</entry>

<entry>

<functionname>find_last()</functionname>

<sbr/>

<functionname>ifind_last()</functionname>

</entry>

</row>

<row>

<entry>find_nth</entry>

<entry>Find the nth (zero-indexed) occurrence of a string in the input</entry>

<entry>

<functionname>find_nth()</functionname>

<sbr/>

<functionname>ifind_nth()</functionname>

</entry>

</row>

<row>

<entry>find_head</entry>

<entry>Retrieve the head of a string</entry>

<entry>

<functionname>find_head()</functionname>

</entry>

</row>

<row>

<entry>find_tail</entry>

<entry>Retrieve the tail of a string</entry>

<entry>

<functionname>find_tail()</functionname>

</entry>

</row>

<row>

<entry>find_token</entry>

<entry>Find first matching token in the string</entry>

<entry>

<functionname>find_token()</functionname>

</entry>

</row>

<row>

<entry>find_regex</entry>

<entry>Use the regular expression to search the string</entry>

<entry>

<functionname>find_regex()</functionname>

</entry>

</row>

<row>

<entry>find</entry>

<entry>Generic find algorithm</entry>

<entry>

<functionname>find()</functionname>

</entry>

</row>

</tbody>

</tgroup>

</table>

<table>

<title>Erase/Replace</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Algorithm name</entry>

<entry>Description</entry>

<entry>Functions</entry>

</row>

</thead>

<tbody>

<row>

<entry>replace/erase_first</entry>

<entry>Replace/Erase the first occurrence of a string in the input</entry>

<entry>

<functionname>replace_first()</functionname>

<sbr/>

<functionname>replace_first_copy()</functionname>

<sbr/>

<functionname>ireplace_first()</functionname>

<sbr/>

<functionname>ireplace_first_copy()</functionname>

<sbr/>

<functionname>erase_first()</functionname>

<sbr/>

<functionname>erase_first_copy()</functionname>

<sbr/>

<functionname>ierase_first()</functionname>

<sbr/>

<functionname>ierase_first_copy()</functionname>

</entry>

</row>

<row>

<entry>replace/erase_last</entry>

<entry>Replace/Erase the last occurrence of a string in the input</entry>

<entry>

<functionname>replace_last()</functionname>

<sbr/>

<functionname>replace_last_copy()</functionname>

<sbr/>

<functionname>ireplace_last()</functionname>

<sbr/>

<functionname>ireplace_last_copy()</functionname>

<sbr/>

<functionname>erase_last()</functionname>

<sbr/>

<functionname>erase_last_copy()</functionname>

<sbr/>

<functionname>ierase_last()</functionname>

<sbr/>

<functionname>ierase_last_copy()</functionname>

</entry>

</row>

<row>

<entry>replace/erase_nth</entry>

<entry>Replace/Erase the nth (zero-indexed) occurrence of a string in the input</entry>

<entry>

<functionname>replace_nth()</functionname>

<sbr/>

<functionname>replace_nth_copy()</functionname>

<sbr/>

<functionname>ireplace_nth()</functionname>

<sbr/>

<functionname>ireplace_nth_copy()</functionname>

<sbr/>

<functionname>erase_nth()</functionname>

<sbr/>

<functionname>erase_nth_copy()</functionname>

<sbr/>

<functionname>ierase_nth()</functionname>

<sbr/>

<functionname>ierase_nth_copy()</functionname>

</entry>

</row>

<row>

<entry>replace/erase_all</entry>

<entry>Replace/Erase the all occurrences of a string in the input</entry>

<entry>

<functionname>replace_all()</functionname>

<sbr/>

<functionname>replace_all_copy()</functionname>

<sbr/>

<functionname>ireplace_all()</functionname>

<sbr/>

<functionname>ireplace_all_copy()</functionname>

<sbr/>

<functionname>erase_all()</functionname>

<sbr/>

<functionname>erase_all_copy()</functionname>

<sbr/>

<functionname>ierase_all()</functionname>

<sbr/>

<functionname>ierase_all_copy()</functionname>

</entry>

</row>

<row>

<entry>replace/erase_head</entry>

<entry>Replace/Erase the head of the input</entry>

<entry>

<functionname>replace_head()</functionname>

<sbr/>

<functionname>replace_head_copy()</functionname>

<sbr/>

<functionname>erase_head()</functionname>

<sbr/>

<functionname>erase_head_copy()</functionname>

<sbr/>

</entry>

</row>

<row>

<entry>replace/erase_tail</entry>

<entry>Replace/Erase the tail of the input</entry>

<entry>

<functionname>replace_tail()</functionname>

<sbr/>

<functionname>replace_tail_copy()</functionname>

<sbr/>

<functionname>erase_tail()</functionname>

<sbr/>

<functionname>erase_tail_copy()</functionname>

<sbr/>

</entry>

</row>

<row>

<entry>replace/erase_regex</entry>

<entry>Replace/Erase a substring matching the given regular expression</entry>

<entry>

<functionname>replace_regex()</functionname>

<sbr/>

<functionname>replace_regex_copy()</functionname>

<sbr/>

<functionname>erase_regex()</functionname>

<sbr/>

<functionname>erase_regex_copy()</functionname>

<sbr/>

</entry>

</row>

<row>

<entry>replace/erase_regex_all</entry>

<entry>Replace/Erase all substrings matching the given regular expression</entry>

<entry>

<functionname>replace_all_regex()</functionname>

<sbr/>

<functionname>replace_all_regex_copy()</functionname>

<sbr/>

<functionname>erase_all_regex()</functionname>

<sbr/>

<functionname>erase_all_regex_copy()</functionname>

<sbr/>

</entry>

</row>

<row>

<entry>find_format</entry>

<entry>Generic replace algorithm</entry>

<entry>

<functionname>find_format()</functionname>

<sbr/>

<functionname>find_format_copy()</functionname>

<sbr/>

<functionname>find_format_all()</functionname>

<sbr/>

<functionname>find_format_all_copy()()</functionname>

</entry>

</row>

</tbody>

</tgroup>

</table>

<table>

<title>Split</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Algorithm name</entry>

<entry>Description</entry>

<entry>Functions</entry>

</row>

</thead>

<tbody>

<row>

<entry>find_all</entry>

<entry>Find/Extract all matching substrings in the input</entry>

<entry>

<functionname>find_all()</functionname>

<sbr/>

<functionname>ifind_all()</functionname>

<sbr/>

<functionname>find_all_regex()</functionname>

</entry>

</row>

<row>

<entry>split</entry>

<entry>Split input into parts</entry>

<entry>

<functionname>split()</functionname>

<sbr/>

<functionname>split_regex()</functionname>

</entry>

</row>

</tbody>

</tgroup>

</table>

<table>

<title>Join</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Algorithm name</entry>

<entry>Description</entry>

<entry>Functions</entry>

</row>

</thead>

<tbody>

<row>

<entry>join</entry>

<entry>Join all elements in a container into a single string</entry>

<entry>

<functionname>join</functionname>

</entry>

</row>

<row>

<entry>join_if</entry>

<entry>Join all elements in a container that satisfies the condition into a single string</entry>

<entry>

<functionname>join_if()</functionname>

</entry>

</row>

</tbody>

</tgroup>

</table>

</section>

<section>

<title>Finders and Formatters</title>

<table>

<title>Finders</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Finder</entry>

<entry>Description</entry>

<entry>Generators</entry>

</row>

</thead>

<tbody>

<row>

<entry>first_finder</entry>

<entry>Search for the first match of the string in an input</entry>

<entry>

<functionname>first_finder()</functionname>

</entry>

</row>

<row>

<entry>last_finder</entry>

<entry>Search for the last match of the string in an input</entry>

<entry>

<functionname>last_finder()</functionname>

</entry>

</row>

<row>

<entry>nth_finder</entry>

<entry>Search for the nth (zero-indexed) match of the string in an input</entry>

<entry>

<functionname>nth_finder()</functionname>

</entry>

</row>

<row>

<entry>head_finder</entry>

<entry>Retrieve the head of an input</entry>

<entry>

<functionname>head_finder()</functionname>

</entry>

</row>

<row>

<entry>tail_finder</entry>

<entry>Retrieve the tail of an input</entry>

<entry>

<functionname>tail_finder()</functionname>

</entry>

</row>

<row>

<entry>token_finder</entry>

<entry>Search for a matching token in an input</entry>

<entry>

<functionname>token_finder()</functionname>

</entry>

</row>

<row>

<entry>range_finder</entry>

<entry>Do no search, always returns the given range</entry>

<entry>

<functionname>range_finder()</functionname>

</entry>

</row>

<row>

<entry>regex_finder</entry>

<entry>Search for a substring matching the given regex</entry>

<entry>

<functionname>regex_finder()</functionname>

</entry>

</row>

</tbody>

</tgroup>

</table>

<table>

<title>Formatters</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Formatter</entry>

<entry>Description</entry>

<entry>Generators</entry>

</row>

</thead>

<tbody>

<row>

<entry>const_formatter</entry>

<entry>Constant formatter. Always return the specified string</entry>

<entry>

<functionname>const_formatter()</functionname>

</entry>

</row>

<row>

<entry>identity_formatter</entry>

<entry>Identity formatter. Return unmodified input input</entry>

<entry>

<functionname>identity_formatter()</functionname>

</entry>

</row>

<row>

<entry>empty_formatter</entry>

<entry>Null formatter. Always return an empty string</entry>

<entry>

<functionname>empty_formatter()</functionname>

</entry>

</row>

<row>

<entry>regex_formatter</entry>

<entry>Regex formatter. Format regex match using the specification in the format string</entry>

<entry>

<functionname>regex_formatter()</functionname>

</entry>

</row>

</tbody>

</tgroup>

</table>

</section>

<section>

<title>Iterators</title>

<table>

<title>Find Iterators</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Iterator name</entry>

<entry>Description</entry>

<entry>Iterator class</entry>

</row>

</thead>

<tbody>

<row>

<entry>find_iterator</entry>

<entry>Iterates through matching substrings in the input</entry>

<entry>

<classname>find_iterator</classname>

</entry>

</row>

<row>

<entry>split_iterator</entry>

<entry>Iterates through gaps between matching substrings in the input</entry>

<entry>

<classname>split_iterator</classname>

</entry>

</row>

</tbody>

</tgroup>

</table>

</section>

<section>

<title>Classification</title>

<table>

<title>Predicates</title>

<tgroup cols="3" align="left">

<thead>

<row>

<entry>Predicate name</entry>

<entry>Description</entry>

<entry>Generator</entry>

</row>

</thead>

<tbody>

<row>

<entry>is_classified</entry>

<entry>Generic <code>ctype</code> mask based classification</entry>

<entry>

<functionname>is_classified()</functionname>

</entry>

</row>

<row>

<entry>is_space</entry>

<entry>Recognize spaces</entry>

<entry>

<functionname>is_space()</functionname>

</entry>

</row>

<row>

<entry>is_alnum</entry>

<entry>Recognize alphanumeric characters</entry>

<entry>

<functionname>is_alnum()</functionname>

</entry>

</row>

<row>

<entry>is_alpha</entry>

<entry>Recognize letters</entry>

<entry>

<functionname>is_alpha()</functionname>

</entry>

</row>

<row>

<entry>is_cntrl</entry>

<entry>Recognize control characters</entry>

<entry>

<functionname>is_cntrl()</functionname>

</entry>

</row>

<row>

<entry>is_digit</entry>

<entry>Recognize decimal digits</entry>

<entry>

<functionname>is_digit()</functionname>

</entry>

</row>

<row>

<entry>is_graph</entry>

<entry>Recognize graphical characters</entry>

<entry>

<functionname>is_graph()</functionname>

</entry>

</row>

<row>

<entry>is_lower</entry>

<entry>Recognize lower case characters</entry>

<entry>

<functionname>is_lower()</functionname>

</entry>

</row>

<row>

<entry>is_print</entry>

<entry>Recognize printable characters</entry>

<entry>

<functionname>is_print()</functionname>

</entry>

</row>

<row>

<entry>is_punct</entry>

<entry>Recognize punctuation characters</entry>

<entry>

<functionname>is_punct()</functionname>

</entry>

</row>

<row>

<entry>is_upper</entry>

<entry>Recognize uppercase characters</entry>

<entry>

<functionname>is_upper()</functionname>

</entry>

</row>

<row>

<entry>is_xdigit</entry>

<entry>Recognize hexadecimal digits</entry>

<entry>

<functionname>is_xdigit()</functionname>

</entry>

</row>

</tbody>

</tgroup>

</table>

</section>

</section>