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utils.cpp
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utils.cpp
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/*
this code is Public Domain
Peter Semiletov
*/
#include <QTextStream>
#include <QTextCodec>
#include <QDebug>
#include <QDir>
#include <QImageReader>
#include <QImage>
#include <QProcess>
#include "utils.h"
using namespace std;
/* file utils */
bool has_css_file (const QString &path)
{
if (path.isEmpty())
return false;
QDir d (path);
QStringList l = d.entryList();
for (int i = 0; i < l.size(); i++)
{
if (l.at(i).endsWith(".css"))
return true;
}
return false;
}
QString guess_enc_for_file (const QString &fname)
{
if (fname.isEmpty())
return QString();
QString enc = "UTF-8";
QProcess p;
p.start ("enca", QStringList() << "-i" << fname);
if (! p.waitForStarted() || ! p.waitForFinished() )
return "err";
QString s = p.readAllStandardOutput();
if (! s.isEmpty())
enc = s.trimmed();
return enc;
}
bool file_is_writable (const QString &fname)
{
if (fname.isEmpty())
return false;
QFile f (fname);
return f.isWritable();
}
bool file_is_readable (const QString &fname)
{
if (fname.isEmpty())
return false;
QFile f (fname);
return f.isReadable();
}
bool path_is_file (const QString &fname)
{
if (fname.isEmpty())
return false;
QFileInfo fi (fname);
return fi.isFile();
}
bool path_is_dir (const QString &fname)
{
if (fname.isEmpty())
return false;
QFileInfo fi (fname);
return fi.isDir();
}
bool path_is_abs (const QString &fname)
{
if (fname.isEmpty())
return false;
if (fname[0] == '/' || fname.indexOf (':') == 1)
return true;
else
return false;
}
bool dir_exists (const QString &path)
{
if (path.isEmpty())
return false;
QDir d (path);
return d.exists();
}
bool file_exists (const QString &fileName)
{
if (fileName.isEmpty())
return false;
return QFile::exists (fileName);
}
QString change_file_ext (const QString &s, const QString &ext)
{
int i = s.lastIndexOf (".");
if (i == -1)
return (s + "." + ext);
QString r (s);
r.truncate (++i);
r.append (ext);
return r;
}
QString file_get_ext (const QString &file_name)
{
if (file_name.isEmpty())
return QString();
int i = file_name.lastIndexOf (".");
if (i == -1)
return QString();
return file_name.mid (i + 1).toLower();
}
QStringList read_dir_entries (const QString &path)
{
QDir dir (path);
return dir.entryList (QDir::AllEntries | QDir::NoDotAndDotDot);
}
/* io utils */
bool qstring_save (const QString &fileName, const QString &data, const char *enc)
{
if (fileName.isEmpty())
return false;
QFile file (fileName);
if (! file.open (QFile::WriteOnly))
return false;
QTextCodec *codec = QTextCodec::codecForName (enc);
QByteArray ba = codec->fromUnicode(data);
file.write(ba);
file.close();
return true;
}
QString qstring_load (const QString &fileName, const char *enc)
{
if (fileName.isEmpty())
return QString();
QFile file (fileName);
if (! file.open (QFile::ReadOnly))
return QString();
QByteArray ba = file.readAll();
QTextCodec *codec = QTextCodec::codecForName(enc);
file.close();
return codec->toUnicode(ba);
}
QString qstring_load_first_line (const QString &fileName)
{
if (fileName.isEmpty())
return QString();
QFile file (fileName);
if (! file.open (QFile::ReadOnly | QFile::Text))
return QString();
QTextStream in(&file);
return in.readLine();
}
QByteArray file_load (const QString &fileName)
{
if (fileName.isEmpty())
return QByteArray();
QFile file (fileName);
QByteArray b;
if (! file.open (QFile::ReadOnly))
return b;
b = file.readAll();
return b;
}
/* string/stringlist utils */
void strlist_swap (QStringList &l, int a, int b)
{
QString t = l[a];
l[a] = l[b];
l[b] = t;
}
QString string_between (const QString &source,
const QString &sep1,
const QString &sep2)
{
QString result;
int pos1 = source.indexOf (sep1);
if (pos1 == -1)
return result;
int pos2 = source.indexOf (sep2, pos1 + sep1.size());
if (pos2 == -1)
return result;
pos1 += sep1.size();
result = source.mid (pos1, pos2 - pos1);
return result;
}
bool char_is_bad (const QChar &c)
{
if (! c.isNull() && ! c.isLetter())
return true;
return false;
}
void qstring_list_print (const QStringList &l)
{
for (int i = 0; i < l.size(); i++)
qDebug() << l[i];
}
QStringList bytearray_to_stringlist (const QList<QByteArray> &a)
{
QStringList r;
for (int i = 0; i < a.size(); i++)
r.append (a.at(i).data());
return r;
}
/* hash utils */
QString hash_get_val (QHash<QString, QString> &h,
const QString &key,
const QString &def_val)
{
QString result = h.value (key);
if (result.isEmpty())
{
result = def_val;
h.insert (key, def_val);
}
return result;
}
QString qstring_load_value (const QString &fileName, const QString &key, const QString &def)
{
QHash <QString, QString> h = hash_load_keyval (fileName);
return hash_get_val (h, key, def);
}
QHash <QString, QString> hash_load_keyval (const QString &fname)
{
QHash <QString, QString> result;
if (! file_exists (fname))
return result;
QStringList l = qstring_load (fname).split ("\n");
for (QList <QString>::iterator i = l.begin(); i != l.end(); ++i)
{
QStringList sl = i->split ("=");
if (sl.size() > 1)
result.insert (sl.at(0), sl.at(1));
}
return result;
}
/* image utils */
bool is_image (const QString &filename)
{
if (filename.isEmpty())
return false;
QList <QByteArray> a = QImageReader::supportedImageFormats();
for (QList <QByteArray>::iterator i = a.begin(); i != a.end(); ++i)
{
QString t (i->data());
if (filename.endsWith (t.prepend ("."), Qt::CaseInsensitive))
return true;
}
return false;
}
QString get_insert_image (const QString &file_name, const QString &full_path, const QString &markup_mode)
{
if (! is_image (full_path))
return QString();
QFileInfo inf (file_name);
QDir dir (inf.absolutePath());
QImage img;
img.load (full_path);
QString result;
if (markup_mode == "HTML")
result = QString ("<img src=\"%1\" alt=\"\" width=\"%2\" height=\"%3\">").arg (
dir.relativeFilePath (full_path)).arg (img.width()).arg (img.height());
else
if (markup_mode == "XHTML")
result = QString ("<img src=\"%1\" border=\"0\" alt=\"\" width=\"%2\" height=\"%3\" />").arg (
dir.relativeFilePath (full_path)).arg (img.width()).arg (img.height());
else
if (markup_mode == "Docbook")
result = QString ("<mediaobject><imageobject>\n<imagedata fileref=\"%1\"/>\n</imageobject></mediaobject>").arg (
dir.relativeFilePath (full_path)) ;
else
if (markup_mode == "LaTeX")
result = QString ("\\includegraphics{%1}").arg (dir.relativeFilePath (full_path));
else
if (markup_mode == "Lout")
result = QString ("@IncludeGraphic {%1}").arg (dir.relativeFilePath (full_path));
else
if (markup_mode == "Markdown")
result = QString ("").arg (dir.relativeFilePath (full_path));
return result;
}
/* class functions */
void CFilesList::iterate (QFileInfo &fi)
{
if (fi.isDir())
{
QDir d (fi.absoluteFilePath());
QFileInfoList lfi= d.entryInfoList (QDir::Dirs | QDir::Files | QDir::Readable | QDir::NoDotAndDotDot);
for (int i = 0; i < lfi.count(); i++)
iterate (lfi[i]);
}
else
if (fi.isFile())
list.append (fi.absoluteFilePath());
}
void CFilesList::get (const QString &path)
{
if (path.isEmpty())
return;
list.clear();
QDir d (path);
QFileInfoList lfi= d.entryInfoList (QDir::Dirs | QDir::Files | QDir::Readable | QDir::NoDotAndDotDot);
for (int i = 0; i < lfi.count(); i++)
iterate (lfi[i]);
}
#if QT_VERSION < 0x050000
#define ADDTEXTTYPE(expr) patterns.push_back (QRegExp (expr, Qt::CaseInsensitive));
#else
#define ADDTEXTTYPE(expr) patterns.push_back (QRegularExpression (expr, QRegularExpression::CaseInsensitiveOption));
#endif
CFTypeChecker::CFTypeChecker()
{
ADDTEXTTYPE (".*(readme|news|changelog|todo)$");
ADDTEXTTYPE ("^\\..*(rc)$");
ADDTEXTTYPE ("^.*\\.(txt|conf|md|ini|bat|cfg|sbv|log|odt|docx|kwd|fb2|abw|rtf|epub|sxw)$");
ADDTEXTTYPE ("^.*\\.(cpp|c|h|hh|cxx|hpp|cc|m|mm)$");
ADDTEXTTYPE ("^.*\\.(htm|html|xml|xhtml|ts|osm|xsl)$");
#if defined(POPPLER_ENABLE)
ADDTEXTTYPE ("^.*\\.(pdf)$");
#endif
#if defined(DJVU_ENABLE)
ADDTEXTTYPE ("^.*\\.(djvu)$");
#endif
ADDTEXTTYPE ("^.*\\.(awk)$");
ADDTEXTTYPE ("^.*\\.(sh)$");
ADDTEXTTYPE ("^.*\\.(bas|bi|vbs|vbe)$");
ADDTEXTTYPE ("^.*\\.(d)$");
ADDTEXTTYPE ("^.*\\.(f|for|f90|f95)$");
ADDTEXTTYPE ("^.*\\.(java|js)$");
ADDTEXTTYPE ("^.*\\.(ly)$");
ADDTEXTTYPE ("^.*\\.(lout)$");
ADDTEXTTYPE ("^.*\\.(lua)$");
ADDTEXTTYPE ("^.*\\.(asm)$");
ADDTEXTTYPE ("^.*\\.(nsi)$");
ADDTEXTTYPE ("^.*\\.(pp|pas|dpr)$");
ADDTEXTTYPE ("^.*\\.(pl|pm)$");
ADDTEXTTYPE ("^.*\\.(php)$");
ADDTEXTTYPE ("^.*\\.(po)$");
ADDTEXTTYPE ("^.*\\.(py)$");
ADDTEXTTYPE ("^.*\\.(r)$");
ADDTEXTTYPE ("^.*\\.(sd7)$");
ADDTEXTTYPE ("^.*\\.(tex|lyx)$");
ADDTEXTTYPE ("^.*\\.(vala)$");
ADDTEXTTYPE ("^.*\\.(v)$");
ADDTEXTTYPE ("^.*\\.(wiki)$");
}
/*
CFTypeChecker::CFTypeChecker()
{
#if QT_VERSION < 0x050000
patterns.push_back (QRegExp (".*(readme|news|changelog|todo)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^\\..*(rc)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(txt|conf|md|ini|bat|cfg|sbv|log|odt|docx|kwd|fb2|abw|rtf|epub|sxw)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(cpp|c|h|hh|cxx|hpp|cc|m|mm)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(htm|html|xml|xhtml|ts|osm|xsl)$", Qt::CaseInsensitive));
#if defined(POPPLER_ENABLE)
patterns.push_back (QRegExp ("^.*\\.(pdf)$", Qt::CaseInsensitive));
#endif
#if defined(DJVU_ENABLE)
patterns.push_back (QRegExp ("^.*\\.(djvu)$", Qt::CaseInsensitive));
#endif
patterns.push_back (QRegExp ("^.*\\.(awk)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(sh)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(bas|bi|vbs|vbe)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(d)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(f|for|f90|f95)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(java|js)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(ly)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(lout)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(lua)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(asm)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(nsi)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(pp|pas|dpr)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(pl|pm)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(php)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(po)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(py)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(r)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(sd7)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(tex|lyx)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(vala)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(v)$", Qt::CaseInsensitive));
patterns.push_back (QRegExp ("^.*\\.(wiki)$", Qt::CaseInsensitive));
#else
patterns.push_back (QRegularExpression (".*(readme|news|changelog|todo)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^\\..*(rc)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(txt|conf|md|ini|bat|cfg|sbv|log|odt|docx|kwd|fb2|abw|rtf|epub|sxw)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(cpp|c|h|hh|cxx|hpp|cc|m|mm)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(htm|html|xml|xhtml|ts|osm|xsl)$", QRegularExpression::CaseInsensitiveOption));
#if defined(POPPLER_ENABLE)
patterns.push_back (QRegularExpression ("^.*\\.(pdf)$", QRegularExpression::CaseInsensitiveOption));
#endif
#if defined(DJVU_ENABLE)
patterns.push_back (QRegularExpression ("^.*\\.(djvu)$", QRegularExpression::CaseInsensitiveOption));
#endif
patterns.push_back (QRegularExpression ("^.*\\.(awk)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(sh)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(bas|bi|vbs|vbe)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(d)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(f|for|f90|f95)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(java|js)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(ly)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(lout)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(lua)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(asm)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(nsi)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(pp|pas|dpr)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(pl|pm)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(php)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(po)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(py)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(r)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(sd7)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(tex|lyx)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(vala)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(v)$", QRegularExpression::CaseInsensitiveOption));
patterns.push_back (QRegularExpression ("^.*\\.(wiki)$", QRegularExpression::CaseInsensitiveOption));
#endif
}
*/
bool CFTypeChecker::check (const QString &fname) const
{
#if QT_VERSION < 0x050000
for (size_t i = 0; i < patterns.size(); ++i)
{
if (patterns[i].exactMatch(fname))
return true;
}
#else
for (size_t i = 0; i < patterns.size(); ++i)
{
QRegularExpressionMatch match = patterns[i].match(fname);
if (match.hasMatch())
return true;
}
#endif
return false;
}
/*
GUI functions
*/