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Updated examples with better comment on expressions. Updated test program to test for apparent Rogur Wave bug (and it's workaround).

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[SVN r11390]
This commit is contained in:
John Maddock
2001-10-16 11:36:00 +00:00
parent 28968bd2b6
commit e047b2b509
7 changed files with 129 additions and 7 deletions
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24
example/snippets/regex_grep_example_1.cpp
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@ -31,7 +31,29 @@
typedef std::map<std::string, int, std::less<std::string> > map_type;
boost::regex expression("^(template[[:space:]]*<[^;:{]+>[[:space:]]*)?(class|struct)[[:space:]]*(\\<\\w+\\>([[:blank:]]*\\([^)]*\\))?[[:space:]]*)*(\\<\\w*\\>)[[:space:]]*(<[^;:{]+>)?[[:space:]]*(\\{|:[^;\\{()]*\\{)");
const char* re =
// possibly leading whitespace:
"^[[:space:]]*"
// possible template declaration:
"(template[[:space:]]*<[^;:{]+>[[:space:]]*)?"
// class or struct:
"(class|struct)[[:space:]]*"
// leading declspec macros etc:
"("
"\\<\\w+\\>"
"("
"[[:blank:]]*\\([^)]*\\)"
")?"
"[[:space:]]*"
")*"
// the class name
"(\\<\\w*\\>)[[:space:]]*"
// template specialisation parameters
"(<[^;:{]+>)?[[:space:]]*"
// terminate in { or :
"(\\{|:[^;\\{()]*\\{)";
boost::regex expression(re);
class IndexClassesPred
{

25
example/snippets/regex_grep_example_2.cpp
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@ -32,7 +32,30 @@
typedef std::map<std::string, int, std::less<std::string> > map_type;
boost::regex expression("^(template[[:space:]]*<[^;:{]+>[[:space:]]*)?(class|struct)[[:space:]]*(\\<\\w+\\>([[:blank:]]*\\([^)]*\\))?[[:space:]]*)*(\\<\\w*\\>)[[:space:]]*(<[^;:{]+>)?[[:space:]]*(\\{|:[^;\\{()]*\\{)");
const char* re =
// possibly leading whitespace:
"^[[:space:]]*"
// possible template declaration:
"(template[[:space:]]*<[^;:{]+>[[:space:]]*)?"
// class or struct:
"(class|struct)[[:space:]]*"
// leading declspec macros etc:
"("
"\\<\\w+\\>"
"("
"[[:blank:]]*\\([^)]*\\)"
")?"
"[[:space:]]*"
")*"
// the class name
"(\\<\\w*\\>)[[:space:]]*"
// template specialisation parameters
"(<[^;:{]+>)?[[:space:]]*"
// terminate in { or :
"(\\{|:[^;\\{()]*\\{)";
boost::regex expression(re);
map_type class_index;
std::string::const_iterator base;

25
example/snippets/regex_grep_example_3.cpp
View File

@ -33,6 +33,29 @@
typedef std::map<std::string, int, std::less<std::string> > map_type;
const char* re =
// possibly leading whitespace:
"^[[:space:]]*"
// possible template declaration:
"(template[[:space:]]*<[^;:{]+>[[:space:]]*)?"
// class or struct:
"(class|struct)[[:space:]]*"
// leading declspec macros etc:
"("
"\\<\\w+\\>"
"("
"[[:blank:]]*\\([^)]*\\)"
")?"
"[[:space:]]*"
")*"
// the class name
"(\\<\\w*\\>)[[:space:]]*"
// template specialisation parameters
"(<[^;:{]+>)?[[:space:]]*"
// terminate in { or :
"(\\{|:[^;\\{()]*\\{)";
class class_index
{
boost::regex expression;
@ -45,7 +68,7 @@ public:
void IndexClasses(const std::string& file);
class_index()
: index(),
expression("^(template[[:space:]]*<[^;:{]+>[[:space:]]*)?(class|struct)[[:space:]]*(\\<\\w+\\>([[:blank:]]*\\([^)]*\\))?[[:space:]]*)*(\\<\\w*\\>)[[:space:]]*(<[^;:{]+>)?[[:space:]]*(\\{|:[^;\\{()]*\\{)")
expression(re)
{}
};

25
example/snippets/regex_grep_example_4.cpp
View File

@ -33,6 +33,29 @@
typedef std::map<std::string, int, std::less<std::string> > map_type;
const char* re =
// possibly leading whitespace:
"^[[:space:]]*"
// possible template declaration:
"(template[[:space:]]*<[^;:{]+>[[:space:]]*)?"
// class or struct:
"(class|struct)[[:space:]]*"
// leading declspec macros etc:
"("
"\\<\\w+\\>"
"("
"[[:blank:]]*\\([^)]*\\)"
")?"
"[[:space:]]*"
")*"
// the class name
"(\\<\\w*\\>)[[:space:]]*"
// template specialisation parameters
"(<[^;:{]+>)?[[:space:]]*"
// terminate in { or :
"(\\{|:[^;\\{()]*\\{)";
class class_index
{
boost::regex expression;
@ -47,7 +70,7 @@ public:
void IndexClasses(const std::string& file);
class_index()
: index(),
expression("^(template[[:space:]]*<[^;:{]+>[[:space:]]*)?(class|struct)[[:space:]]*(\\<\\w+\\>([[:blank:]]*\\([^)]*\\))?[[:space:]]*)*(\\<\\w*\\>)[[:space:]]*(<[^;:{]+>)?[[:space:]]*(\\{|:[^;\\{()]*\\{)")
expression(re)
{}
};

25
example/snippets/regex_search_example.cpp
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@ -31,7 +31,30 @@
typedef std::map<std::string, int, std::less<std::string> > map_type;
boost::regex expression("^(template[[:space:]]*<[^;:{]+>[[:space:]]*)?(class|struct)[[:space:]]*(\\<\\w+\\>([[:blank:]]*\\([^)]*\\))?[[:space:]]*)*(\\<\\w*\\>)[[:space:]]*(<[^;:{]+>)?[[:space:]]*(\\{|:[^;\\{()]*\\{)");
const char* re =
// possibly leading whitespace:
"^[[:space:]]*"
// possible template declaration:
"(template[[:space:]]*<[^;:{]+>[[:space:]]*)?"
// class or struct:
"(class|struct)[[:space:]]*"
// leading declspec macros etc:
"("
"\\<\\w+\\>"
"("
"[[:blank:]]*\\([^)]*\\)"
")?"
"[[:space:]]*"
")*"
// the class name
"(\\<\\w*\\>)[[:space:]]*"
// template specialisation parameters
"(<[^;:{]+>)?[[:space:]]*"
// terminate in { or :
"(\\{|:[^;\\{()]*\\{)";
boost::regex expression(re);
void IndexClasses(map_type& m, const std::string& file)
{

7
test/regress/parse.cpp
View File

@ -37,11 +37,16 @@ using namespace boost;
flag_info flag_data[] = {
{ BOOST_RE_STR("REG_BASIC"), 9, REG_BASIC, 0 },
{ BOOST_RE_STR("REG_EXTENDED"), 12, REG_EXTENDED, 0 },
{ BOOST_RE_STR("REG_ESCAPE_IN_LISTS"), 19, REG_ESCAPE_IN_LISTS, 0 },
{ BOOST_RE_STR("REG_ICASE"), 9, REG_ICASE, 0 },
{ BOOST_RE_STR("REG_NOSUB"), 9, REG_NOSUB, 0 },
{ BOOST_RE_STR("REG_NEWLINE"), 11, REG_NEWLINE, 0 },
{ BOOST_RE_STR("REG_NEWLINE"), 11, REG_NEWLINE, 0 },
{ BOOST_RE_STR("REG_NOCOLLATE"), 13, REG_NOCOLLATE, 0 },
{ BOOST_RE_STR("REG_NOSPEC"), 10, REG_NOSPEC, 0 },
{ BOOST_RE_STR("REG_NEWLINE_ALT"), 15, REG_NEWLINE_ALT , 0 },
{ BOOST_RE_STR("REG_PERL"), 8, REG_PERL, 0 },
{ BOOST_RE_STR("REG_AWK"), 7, REG_AWK, 0 },
{ BOOST_RE_STR("REG_EGREP"), 9, REG_EGREP, 0 },
{ BOOST_RE_STR("REG_NOTBOL"), 10, REG_NOTBOL, 1 },
{ BOOST_RE_STR("REG_NOTEOL"), 10, REG_NOTEOL, 1 },

5
test/regress/tests.txt
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@ -503,8 +503,10 @@ a(b+|((c)*))+d abcd 0 4 2 3 2 3 2 3
'([^\\']|\\.)*' '\\n' 0 4 1 3
; now try and test some unicode specific characters:
- match_default normal REG_EXTENDED REG_UNICODE_ONLY
- match_default normal REG_PERL REG_UNICODE_ONLY
[[:unicode:]]+ a\0300\0400z 1 3
[\x10-\xff] \39135\12409 -1 -1
[\01-\05]{5} \36865\36865\36865\36865\36865 -1 -1
; finally try some case insensitive matches:
- match_default normal REG_EXTENDED REG_ICASE
@ -880,3 +882,4 @@ a+(?#b+)b+ xaaabbba 1 7