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Added [Measure:EscapeRegExp] section variable for measures. This will escape any regular expression meta-characters for use with IfMatch.

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This commit is contained in:
Brian Ferguson 2014-01-04 09:06:07 -07:00
parent ee281be0c7
commit 957e37fbf2
2 changed files with 52 additions and 1 deletions
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51
Library/ConfigParser.cpp
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@ -230,12 +230,14 @@ bool ConfigParser::GetSectionVariable(std::wstring& strVariable, std::wstring& s
// Percentual: [Measure:%], [Measure:%, dec]
// Scale: [Measure:/scale], [Measure:/scale, dec]
// Max/Min: [Measure:MaxValue], [Measure:MaxValue:/scale, dec] ('%' cannot be used)
// EscapeRegExp: [Measure:EscapeRegExp] (Escapes regular expression syntax, used for 'IfMatch')
enum VALUETYPE
{
RAW = 0,
PERCENTUAL = 1,
MAX = 2,
MIN = 3
MIN = 3,
SPECIAL = 4
} valueType = RAW;
if (isKeySelector)
@ -248,6 +250,10 @@ bool ConfigParser::GetSectionVariable(std::wstring& strVariable, std::wstring& s
{
valueType = MIN;
}
else if (_wcsicmp(selectorSz, L"EscapeRegExp") == 0)
{
valueType = SPECIAL;
}
else
{
return false;
@ -287,6 +293,19 @@ bool ConfigParser::GetSectionVariable(std::wstring& strVariable, std::wstring& s
Measure* measure = m_MeterWindow->GetMeasure(strVariable);
if (measure)
{
if (valueType == SPECIAL) // "Special" functions: EscapeRegExp
{
if (_wcsicmp(selector.c_str(), L"EscapeRegExp") == 0)
{
std::wstring str = measure->GetStringValue();
EscapeRegExp(str);
strValue.assign(str);
}
//else if (_wcsicmp(selector.c_str(), L"") == 0)
return true;
}
int scale = 1;
const WCHAR* decimalsSz = wcschr(selectorSz, L',');
@ -364,6 +383,36 @@ bool ConfigParser::GetSectionVariable(std::wstring& strVariable, std::wstring& s
return false;
}
/*
** Used to escape regular expression metacharacters for use in IfMatch
**
*/
void ConfigParser::EscapeRegExp(std::wstring& str)
{
auto replace = [&str](WCHAR reservedChar)
{
size_t start = 0;
while ((start = str.find(reservedChar, start)) != std::wstring::npos)
{
str.insert(start, L"\\");
start += 2;
}
};
replace(L'\\');
replace(L'^');
replace(L'$');
replace(L'|');
replace(L'(');
replace(L')');
replace(L'[');
replace(L'{');
replace(L'.');
replace(L'+');
replace(L'*');
replace(L'?');
}
void ConfigParser::ResetMonitorVariables(MeterWindow* meterWindow)
{
// Set the SCREENAREA/WORKAREA variables

2
Library/ConfigParser.h
View File

@ -110,6 +110,8 @@ private:
bool GetSectionVariable(std::wstring& strVariable, std::wstring& strValue);
void EscapeRegex(std::wstring& str);
static void SetVariable(std::unordered_map<std::wstring, std::wstring>& variables, const std::wstring& strVariable, const std::wstring& strValue);
static void SetVariable(std::unordered_map<std::wstring, std::wstring>& variables, const WCHAR* strVariable, const WCHAR* strValue);