| 1 | // Boost string_algo library example file ---------------------------------// |
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| 2 | |
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| 3 | // Copyright Pavol Droba 2002-2003. Use, modification and |
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| 4 | // distribution is subject to the Boost Software License, Version |
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| 5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 6 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 7 | |
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| 8 | // See http://www.boost.org for updates, documentation, and revision history. |
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| 9 | |
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| 10 | #include <string> |
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| 11 | #include <iostream> |
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| 12 | #include <functional> |
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| 13 | #include <boost/algorithm/string/predicate.hpp> |
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| 14 | #include <boost/algorithm/string/classification.hpp> |
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| 15 | |
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| 16 | using namespace std; |
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| 17 | using namespace boost; |
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| 18 | |
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| 19 | int main() |
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| 20 | { |
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| 21 | cout << "* Predicate Example *" << endl << endl; |
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| 22 | |
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| 23 | string str1("123xxx321" ); |
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| 24 | string str2("abc" ); |
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| 25 | |
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| 26 | // Check if str1 starts with '123' |
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| 27 | cout << "str1 starts with \"123\": " << |
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| 28 | (starts_with( Input: str1, Test: string("123" ) )?"true" :"false" ) << endl; |
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| 29 | |
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| 30 | // Check if str1 ends with '123' |
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| 31 | cout << "str1 ends with \"123\": " << |
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| 32 | (ends_with( Input: str1, Test: string("123" ) )?"true" :"false" ) << endl; |
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| 33 | |
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| 34 | // Check if str1 contains 'xxx' |
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| 35 | cout << "str1 contains \"xxx\": " << |
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| 36 | (contains( Input: str1, Test: string("xxx" ) )?"true" :"false" ) << endl; |
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| 37 | |
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| 38 | |
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| 39 | // Check if str2 equals to 'abc' |
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| 40 | cout << "str2 equals \"abc\": " << |
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| 41 | (equals( Input: str2, Test: string("abc" ) )?"true" :"false" ) << endl; |
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| 42 | |
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| 43 | |
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| 44 | // Classification functors and all predicate |
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| 45 | if ( all(Input: ";.," , Pred: is_punct() ) ) |
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| 46 | { |
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| 47 | cout << "\";.,\" are all punctuation characters" << endl; |
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| 48 | } |
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| 49 | |
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| 50 | // Classification predicates can be combined |
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| 51 | if ( all(Input: "abcxxx" , Pred: is_any_of(Set: "xabc" ) && !is_space() ) ) |
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| 52 | { |
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| 53 | cout << "true" << endl; |
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| 54 | } |
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| 55 | |
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| 56 | cout << endl; |
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| 57 | |
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| 58 | return 0; |
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| 59 | } |
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| 60 | |
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