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tdelibs/kate/part/kateluaindentscript.cpp

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/* This file is part of the KDE libraries
Copyright (C) 2005 Joseph Wenninger <jowenn@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#ifdef HAVE_LUA
#include "kateluaindentscript.h"
#include "katedocument.h"
#include "kateview.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <tqfile.h>
#include <tqfileinfo.h>
#include <kstandarddirs.h>
#include <tdeconfig.h>
#include <tdeglobal.h>
#include <tdelocale.h>
extern "C" {
#include <lua.h>
#include <lualib.h>
}
#define ONCHAR 1
#define ONNEWLINE 2
#define ONCHARSTR "kateonchar"
#define ONNEWLINESTR "kateonnewline"
#define katelua_registerFunc(n,f,t) \
(lua_pushstring(m_interpreter, n), \
lua_pushcfunction(m_interpreter, f), \
lua_settable(m_interpreter, t))
#define katelua_registerNumConst(n,v,t) \
(lua_pushstring(m_interpreter, n), \
lua_pushnumber(m_interpreter, v), \
lua_settable(m_interpreter, t))
//BEGIN temporary, try to use registry later
static KateDocument *katelua_doc;
static Kate::View *katelua_view;
//END
//BEGIN STATIC BINDING FUNCTIONS
typedef struct KATELUA_FUNCTIONS {
char *name;
lua_CFunction func;
} KATELUA_FUNCTIONS;
static int katelua_katedebug(lua_State *L) {
int n=lua_gettop(L);
for (int i=1;i<=n;i++) {
if (lua_isnil(L,i)) kdDebug()<<"NIL VALUE"<<endl;
else if (lua_isstring(L,i)) kdDebug()<<lua_tostring(L,i)<<endl;
else if (lua_isboolean(L,i)) kdDebug()<<(bool)lua_toboolean(L,i)<<endl;
else if (lua_isnumber(L,i)) kdDebug()<<lua_tonumber(L,i)<<endl;
else kdDebug()<<"Invalid type for katedebug:"<<lua_type(L,i)<<endl;
}
return 0;
}
static int katelua_indenter_register(lua_State *L) {
int n=lua_gettop(L);
if (n!=2) {
lua_pushstring(L,i18n("indenter.register requires 2 parameters (event id, function to call)").utf8().data());
lua_error(L);
}
if ( (!lua_isfunction(L,2)) || (!lua_isnumber(L,1)))
{
/*if (lua_isnumber(L,1)) kdDebug()<<"A"<<endl;
if (lua_isfunction(L,2)) kdDebug()<<"B"<<endl;
kdDebug()<<lua_type(L,2)<<endl;*/
lua_pushstring(L,i18n("indenter.register requires 2 parameters (event id (number), function to call (function))").utf8().data());
lua_error(L);
}
switch ((int)lua_tonumber(L,1))
{
case ONCHAR:
lua_pushstring(L,ONCHARSTR);
lua_pushstring(L,ONCHARSTR);
break;
case ONNEWLINE:
lua_pushstring(L,ONNEWLINESTR);
lua_pushstring(L,ONNEWLINESTR);
break;
default:
lua_pushstring(L,i18n("indenter.register:invalid event id").utf8().data());
lua_error(L);
}
lua_gettable(L,LUA_REGISTRYINDEX);
if (!lua_isnil(L,lua_gettop(L))) {
lua_pushstring(L,i18n("indenter.register:there is already a function set for given").utf8().data());
lua_error(L);
}
lua_pop(L,1);
lua_pushvalue(L,2);
lua_settable(L,LUA_REGISTRYINDEX);
kdDebug()<<"katelua_indenter_register: Success"<<endl;
return 0;
}
static int katelua_document_textline(lua_State *L) {
if (lua_gettop(L)!=1) {
lua_pushstring(L,i18n("document.textLine:One parameter (line number) required").utf8().data());
lua_error(L);
}
if (!lua_isnumber(L,1)) {
lua_pushstring(L,i18n("document.textLine:One parameter (line number) required (number)").utf8().data());
lua_error(L);
}
lua_pushstring(L,katelua_doc->textLine((uint)lua_tonumber(L,1)).utf8().data());
return 1;
}
static int katelua_document_removeText(lua_State *L) {
if (lua_gettop(L)!=4) {
lua_pushstring(L,i18n("document.removeText:Four parameters needed (start line, start col,end line, end col)").utf8().data());
lua_error(L);
}
if ((!lua_isnumber(L,1)) || (!lua_isnumber(L,2)) ||(!lua_isnumber(L,3)) || (!lua_isnumber(L,4))) {
lua_pushstring(L,i18n("document.removeText:Four parameters needed (start line, start col,end line, end col) (4x number)").utf8().data());
lua_error(L);
}
lua_pushboolean(L,katelua_doc->removeText((uint)lua_tonumber(L,1),(uint)lua_tonumber(L,2),(uint)lua_tonumber(L,3),(uint)lua_tonumber(L,4)));
return 1;
}
static int katelua_document_insertText(lua_State *L) {
if (lua_gettop(L)!=3) {
lua_pushstring(L,i18n("document.insertText:Three parameters needed (line,col,text)").utf8().data());
lua_error(L);
}
if ((!lua_isnumber(L,1)) || (!lua_isnumber(L,2)) ||(!lua_isstring(L,3)) ) {
lua_pushstring(L,i18n("document.removeText:Three parameters needed (line,col,text) (number,number,string)").utf8().data());
lua_error(L);
}
lua_pushboolean(L,katelua_doc->insertText((uint)lua_tonumber(L,1),(uint)lua_tonumber(L,2),TQString::fromUtf8(lua_tostring(L,3))));
return 1;
}
static int katelua_view_cursorline(lua_State *L) {
lua_pushnumber(L,katelua_view->cursorLine());
return 1;
}
static int katelua_view_cursorcolumn(lua_State *L) {
lua_pushnumber(L,katelua_view->cursorColumn());
return 1;
}
static int katelua_view_cursorposition(lua_State *L) {
lua_pushnumber(L,katelua_view->cursorLine());
lua_pushnumber(L,katelua_view->cursorColumn());
return 2;
}
static int katelua_view_setcursorpositionreal(lua_State *L) {
return 0;
}
static const struct KATELUA_FUNCTIONS katelua_documenttable[4]= {
{"textLine",katelua_document_textline},
{"removeText",katelua_document_removeText},
{"insertText",katelua_document_insertText},
{0,0}
};
static const struct KATELUA_FUNCTIONS katelua_viewtable[5]= {
{"cursorLine",katelua_view_cursorline},
{"cursorColumn",katelua_view_cursorcolumn},
{"cursorPosition",katelua_view_cursorposition},
{"setCursorPositionReal",katelua_view_setcursorpositionreal},
{0,0}
};
static void kateregistertable(lua_State* m_interpreter,const KATELUA_FUNCTIONS funcs[],char * tablename) {
lua_newtable(m_interpreter);
int table=lua_gettop(m_interpreter);
for (uint i=0;funcs[i].name!=0;i++)
{
katelua_registerFunc(funcs[i].name,funcs[i].func,table);
}
lua_pushstring(m_interpreter,tablename);
lua_pushvalue(m_interpreter,table);
lua_settable(m_interpreter,LUA_GLOBALSINDEX);
lua_pop(m_interpreter,1);
}
//END STATIC BINDING FUNCTIONS
//BEGIN KateLUAIndentScriptImpl
KateLUAIndentScriptImpl::KateLUAIndentScriptImpl(const TQString& internalName,
const TQString &filePath, const TQString &niceName,
const TQString &copyright, double version):
KateIndentScriptImplAbstract(internalName,filePath,niceName,copyright,version),m_interpreter(0)/*,m_indenter(0)*/
{
}
KateLUAIndentScriptImpl::~KateLUAIndentScriptImpl()
{
deleteInterpreter();
}
void KateLUAIndentScriptImpl::decRef()
{
KateIndentScriptImplAbstract::decRef();
if (refCount()==0)
{
deleteInterpreter();
}
}
void KateLUAIndentScriptImpl::deleteInterpreter()
{
if (m_interpreter)
{
lua_close(m_interpreter);
m_interpreter=0;
}
}
bool KateLUAIndentScriptImpl::setupInterpreter(TQString &errorMsg)
{
if (m_interpreter) return true;
m_interpreter=lua_open();
if (!m_interpreter)
{
errorMsg=i18n("LUA interpreter could not be initialized");
return false;
}
luaopen_base(m_interpreter);
luaopen_string( m_interpreter );
luaopen_table( m_interpreter );
luaopen_math( m_interpreter );
luaopen_io( m_interpreter );
luaopen_debug( m_interpreter );
/*indenter callback setup table*/
lua_newtable(m_interpreter);
int indentertable=lua_gettop(m_interpreter);
katelua_registerFunc("register",katelua_indenter_register,indentertable);
katelua_registerNumConst("OnChar",ONCHAR,indentertable);
katelua_registerNumConst("OnNewline",ONNEWLINE,indentertable);
lua_pushstring(m_interpreter,"indenter");
lua_pushvalue(m_interpreter,indentertable);
lua_settable(m_interpreter,LUA_GLOBALSINDEX);
lua_pop(m_interpreter,1);
/*debug*/
katelua_registerFunc("katedebug",katelua_katedebug,LUA_GLOBALSINDEX);
/*document interface*/
kateregistertable(m_interpreter,katelua_documenttable,"document");
/*view interface*/
kateregistertable(m_interpreter,katelua_viewtable,"view");
/*open script*/
lua_pushstring(m_interpreter,"dofile");
lua_gettable(m_interpreter,LUA_GLOBALSINDEX);
TQCString fn=TQFile::encodeName(filePath());
lua_pushstring(m_interpreter,fn.data());
int execresult=lua_pcall(m_interpreter,1,1,0);
if (execresult==0) {
kdDebug()<<"Lua script has been loaded successfully. Lua interpreter version:"<<lua_version()<<endl;
return true;
} else {
errorMsg=i18n("Lua indenting script had errors: %1").arg(lua_tostring(m_interpreter,lua_gettop(m_interpreter)));
kdDebug()<<errorMsg<<endl;
deleteInterpreter();
return false;
}
}
bool KateLUAIndentScriptImpl::processChar(Kate::View *view, TQChar c, TQString &errorMsg )
{
if (!setupInterpreter(errorMsg)) return false;
katelua_doc=((KateView*)view)->doc();
katelua_view=view;
int oldtop=lua_gettop(m_interpreter);
lua_pushstring(m_interpreter,ONCHARSTR);
lua_gettable(m_interpreter,LUA_REGISTRYINDEX);
bool result=true;
if (!lua_isnil(m_interpreter,lua_gettop(m_interpreter)))
{
lua_pushstring(m_interpreter,TQString(c).utf8().data());
if (lua_pcall(m_interpreter,1,0,0)!=0)
{
errorMsg=i18n("Lua indenting script had errors: %1").arg(lua_tostring(m_interpreter,lua_gettop(m_interpreter)));
kdDebug()<<errorMsg<<endl;
result=false;
}
}
lua_settop(m_interpreter,oldtop);
return result;
}
bool KateLUAIndentScriptImpl::processLine(Kate::View *view, const KateDocCursor &line, TQString &errorMsg )
{
if (!setupInterpreter(errorMsg)) return false;
return true;
}
bool KateLUAIndentScriptImpl::processNewline( class Kate::View *view, const KateDocCursor &begin, bool needcontinue, TQString &errorMsg )
{
if (!setupInterpreter(errorMsg)) return false;
katelua_doc=((KateView*)view)->doc();
katelua_view=view;
int oldtop=lua_gettop(m_interpreter);
lua_pushstring(m_interpreter,ONNEWLINESTR);
lua_gettable(m_interpreter,LUA_REGISTRYINDEX);
bool result=true;
if (!lua_isnil(m_interpreter,lua_gettop(m_interpreter)))
{
if (lua_pcall(m_interpreter,0,0,0)!=0)
{
errorMsg=i18n("Lua indenting script had errors: %1").arg(lua_tostring(m_interpreter,lua_gettop(m_interpreter)));
kdDebug()<<errorMsg<<endl;
result=false;
}
}
lua_settop(m_interpreter,oldtop);
return result;
}
//END
//BEGIN KateLUAIndentScriptManager
KateLUAIndentScriptManager::KateLUAIndentScriptManager():KateIndentScriptManagerAbstract()
{
collectScripts();
}
KateLUAIndentScriptManager::~KateLUAIndentScriptManager ()
{
}
void KateLUAIndentScriptManager::collectScripts (bool force)
{
// If there's something in myModeList the Mode List was already built so, don't do it again
if (!m_scripts.isEmpty())
return;
kdDebug()<<"================================================="<<endl<<"Trying to find Lua scripts"<<endl
<<"================================================="<<endl;
// We'll store the scripts list in this config
TDEConfig config("katepartluaindentscriptrc", false, false);
#if 0
// figure out if the kate install is too new
config.setGroup ("General");
if (config.readNumEntry ("Version") > config.readNumEntry ("CachedVersion"))
{
config.writeEntry ("CachedVersion", config.readNumEntry ("Version"));
force = true;
}
#endif
// Let's get a list of all the .js files
TQStringList list = TDEGlobal::dirs()->findAllResources("data","katepart/scripts/indent/*.lua",false,true);
// Let's iterate through the list and build the Mode List
for ( TQStringList::Iterator it = list.begin(); it != list.end(); ++it )
{
// Each file has a group ed:
TQString Group="Cache "+ *it;
// Let's go to this group
config.setGroup(Group);
// stat the file
struct stat sbuf;
memset (&sbuf, 0, sizeof(sbuf));
stat(TQFile::encodeName(*it), &sbuf);
kdDebug()<<"Lua script file:"<<(*it)<<endl;
// If the group exist and we're not forced to read the .js file, let's build myModeList for katepartjscriptrc
bool readnew=false;
if (!force && config.hasGroup(Group) && (sbuf.st_mtime == config.readNumEntry("lastModified")))
{
config.setGroup(Group);
TQString filePath=*it;
TQString internalName=config.readEntry("internlName","KATE-ERROR");
if (internalName=="KATE-ERROR") readnew=true;
else
{
TQString niceName=config.readEntry("niceName",internalName);
TQString copyright=config.readEntry("copyright",i18n("(Unknown)"));
double version=config.readDoubleNumEntry("version",0.0);
KateLUAIndentScriptImpl *s=new KateLUAIndentScriptImpl(
internalName,filePath,niceName,copyright,version);
m_scripts.insert (internalName, s);
}
}
else readnew=true;
if (readnew)
{
TQFileInfo fi (*it);
if (m_scripts[fi.baseName()])
continue;
TQString internalName=fi.baseName();
TQString filePath=*it;
TQString niceName=internalName;
TQString copyright=i18n("(Unknown)");
double version=0.0;
parseScriptHeader(filePath,&niceName,&copyright,&version);
/*save the information for retrieval*/
config.setGroup(Group);
config.writeEntry("lastModified",sbuf.st_mtime);
config.writeEntry("internalName",internalName);
config.writeEntry("niceName",niceName);
config.writeEntry("copyright",copyright);
config.writeEntry("version",version);
KateLUAIndentScriptImpl *s=new KateLUAIndentScriptImpl(
internalName,filePath,niceName,copyright,version);
m_scripts.insert (internalName, s);
}
}
// Syncronize with the file katepartjscriptrc
config.sync();
}
KateIndentScript KateLUAIndentScriptManager::script(const TQString &scriptname) {
KateLUAIndentScriptImpl *s=m_scripts[scriptname];
kdDebug(13050)<<scriptname<<"=="<<s<<endl;
return KateIndentScript(s);
}
void KateLUAIndentScriptManager::parseScriptHeader(const TQString &filePath,
TQString *niceName,TQString *copyright,double *version)
{
#if 0
TQFile f(TQFile::encodeName(filePath));
if (!f.open(IO_ReadOnly) ) {
kdDebug(13050)<<"Header could not be parsed, because file could not be opened"<<endl;
return;
}
TQTextStream st(&f);
st.setEncoding (TQTextStream::UnicodeUTF8);
if (!st.readLine().upper().startsWith("/**KATE")) {
kdDebug(13050)<<"No header found"<<endl;
f.close();
return;
}
// here the real parsing begins
kdDebug(13050)<<"Parsing indent script header"<<endl;
enum {NOTHING=0,COPYRIGHT=1} currentState=NOTHING;
TQString line;
TQString tmpblockdata="";
TQRegExp endExpr("[\\s\\t]*\\*\\*\\/[\\s\\t]*$");
TQRegExp keyValue("[\\s\\t]*\\*\\s*(.+):(.*)$");
TQRegExp blockContent("[\\s\\t]*\\*(.*)$");
while ((line=st.readLine())!=TQString::null) {
if (endExpr.exactMatch(line)) {
kdDebug(13050)<<"end of config block"<<endl;
if (currentState==NOTHING) break;
if (currentState==COPYRIGHT) {
*copyright=tmpblockdata;
break;
}
Q_ASSERT(0);
}
if (currentState==NOTHING)
{
if (keyValue.exactMatch(line)) {
TQStringList sl=keyValue.capturedTexts();
kdDebug(13050)<<"key:"<<sl[1]<<endl<<"value:"<<sl[2]<<endl;
kdDebug(13050)<<"key-length:"<<sl[1].length()<<endl<<"value-length:"<<sl[2].length()<<endl;
TQString key=sl[1];
TQString value=sl[2];
if (key=="NAME") (*niceName)=value.stripWhiteSpace();
else if (key=="VERSION") (*version)=value.stripWhiteSpace().toDouble(0);
else if (key=="COPYRIGHT")
{
tmpblockdata="";
if (value.stripWhiteSpace().length()>0) tmpblockdata=value;
currentState=COPYRIGHT;
} else kdDebug(13050)<<"ignoring key"<<endl;
}
} else {
if (blockContent.exactMatch(line))
{
TQString bl=blockContent.capturedTexts()[1];
//kdDebug(13050)<<"block content line:"<<bl<<endl<<bl.length()<<" "<<bl.isEmpty()<<endl;
if (bl.isEmpty())
{
(*copyright)=tmpblockdata;
kdDebug(13050)<<"Copyright block:"<<endl<<(*copyright)<<endl;
currentState=NOTHING;
} else tmpblockdata=tmpblockdata+"\n"+bl;
}
}
}
f.close();
#endif
}
//END
#endif
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