Added new experimental captures support.

[SVN r21243]
This commit is contained in:
John Maddock
2003-12-13 12:28:48 +00:00
parent 6b95ac002e
commit bf9350aa16
28 changed files with 1593 additions and 612 deletions

View File

@ -45,6 +45,23 @@ test-suite regex-examples :
[ regex-test-run snippets/regex_token_iterator_eg_2.cpp : $(BOOST_ROOT)/libs/regex/doc/index.html ]
[ regex-test-run snippets/regex_iterator_example.cpp : $(BOOST_ROOT)/boost/rational.hpp ]
[ run
# sources
snippets/captures_example.cpp
<template>../build/regex-options
# dependencies
<lib>../test/captures/boost_regex_extra
: # additional args
: # test-files
: # requirements
<threading>multi
<define>BOOST_REGEX_MATCH_EXTRA=1
<define>BOOST_REGEX_NO_LIB=1
: # test name
captures_example
]
;
@ -54,3 +71,5 @@ test-suite regex-examples :

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@ -0,0 +1,51 @@
#include <boost/regex.hpp>
#include <iostream>
void print_captures(const std::string& regx, const std::string& text)
{
boost::regex e(regx);
boost::smatch what;
std::cout << "Expression: \"" << regx << "\"\n";
std::cout << "Text: \"" << text << "\"\n";
if(boost::regex_match(text, what, e, boost::match_extra))
{
unsigned i, j;
std::cout << "** Match found **\n Sub-Expressions:\n";
for(i = 0; i < what.size(); ++i)
std::cout << " $" << i << " = \"" << what[i] << "\"\n";
std::cout << " Captures:\n";
for(i = 0; i < what.size(); ++i)
{
std::cout << " $" << i << " = {";
for(j = 0; j < what.captures(i).size(); ++j)
{
if(j)
std::cout << ", ";
else
std::cout << " ";
std::cout << "\"" << what.captures(i)[j] << "\"";
}
std::cout << " }\n";
}
}
else
{
std::cout << "** No Match found **\n";
}
}
int main(int , char* [])
{
print_captures("(([[:lower:]]+)|([[:upper:]]+))+", "aBBcccDDDDDeeeeeeee");
print_captures("a(b+|((c)*))+d", "abd");
print_captures("(.*)bar|(.*)bah", "abcbar");
print_captures("(.*)bar|(.*)bah", "abcbah");
print_captures("^(?:(\\w+)|(?>\\W+))*$", "now is the time for all good men to come to the aid of the party");
print_captures("^(?>(\\w+)\\W*)*$", "now is the time for all good men to come to the aid of the party");
print_captures("^(\\w+)\\W+(?>(\\w+)\\W+)*(\\w+)$", "now is the time for all good men to come to the aid of the party");
print_captures("^(\\w+)\\W+(?>(\\w+)\\W+(?:(\\w+)\\W+){0,2})*(\\w+)$", "now is the time for all good men to come to the aid of the party");
return 0;
}