source: trunk/tools/qdoc3/quoter.cpp@ 360

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#include <qfileinfo.h>
#include <qregexp.h>
#include <qdebug.h>

#include "quoter.h"

QT_BEGIN_NAMESPACE

static void replaceMultipleNewlines(QString &s)
{
    const int n = s.size();
    bool slurping = false;
    int j = -1;
    const QChar newLine = QLatin1Char('\n');
    QChar *d = s.data();
    for (int i = 0; i != n; ++i) {
        const QChar c = d[i];
        bool hit = (c == newLine);
        if (slurping && hit)
            continue;
        d[++j] = c;
        slurping = hit;
    }
    s.resize(++j);
}

// This is equivalent to  line.split( QRegExp("\n(?!\n|$)") ) but much faster
static QStringList splitLines(const QString &line)
{
    QStringList result;
    int i = line.size();
    while (true) {
        int j = i - 1;
        while (j >= 0 && line.at(j) == QLatin1Char('\n'))
            --j; 
        while (j >= 0 && line.at(j) != QLatin1Char('\n'))
            --j; 
        result.prepend(line.mid(j + 1, i - j - 1));
        if (j < 0)
            break;
        i = j;
    }
    return result;
}

/*
  Transforms 'int x = 3 + 4' into 'int x=3+4'. A white space is kept
  between 'int' and 'x' because it is meaningful in C++.
*/
static void trimWhiteSpace( QString& str )
{
    enum { Normal, MetAlnum, MetSpace } state = Normal;
    const int n = str.length();

    int j = -1;
    QChar *d = str.data();
    for ( int i = 0; i != n; ++i ) {
        const QChar c = d[i];
        if ( c.isLetterOrNumber() ) {
            if ( state == Normal ) {
                state = MetAlnum;
            } else {
                if ( state == MetSpace )
                    str[++j] = c;
                state = Normal;
            }
            str[++j] = c;
        } else if ( c.isSpace() ) {
            if ( state == MetAlnum )
                state = MetSpace;
        } else {
            state = Normal;
            str[++j] = c;
        }
    }
    str.resize(++j);
}

Quoter::Quoter()
    : silent( false )
{
    /* We're going to hard code these delimiters:
        * C++, Qt, Qt Script, Java:
          //! [<id>]
        * .pro files: