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qtqregexp

QRegExp capture and replace

I have a string 

    @echo Setting environment for using the GDAL Utilities.
    set GDAL_PATH="G:\MapTiler"
    @echo GDAL path is %GDAL_PATH%.
    set PATH=%GDAL_PATH%;%PATH%

in this i want to extract "G:\MapTiler" and replace it with "c:\gdal\bin"

for that i need QRegExp.

thanks

Solution

  • You should use the QString::replace() method for this:

    QString gdalPath;
gdalPath.replace(QRegExp("G:\\MapTiler"),"c:\\gda\\bin");

    But if the string being replaced does not even change, do not use regex, use string replace:

    gdalPaht.replace("G:\\MapTiler","c:\\gda\\bin");

    Edit for changing paths:

    QString::replace(QRegExp("set GDAL_PATH=\"[^\"]*\""),"set GDAL_PATH=\"c:\\gda\\bin\"");