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trans.C
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C/C++ Source or Header
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1998-04-23
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7KB
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406 lines
#include <config.h>
#include <stdio.h>
#ifdef __GNUG__
#pragma implementation "trans.h"
#endif
#include "LyXView.h"
#include "trans.h"
#include "filetools.h"
#include "tex-strings.h"
#include "lyxlex.h"
#include "error.h"
#include "trans_mgr.h"
// KmodInfo
KmodInfo::KmodInfo()
{
exception_list=NULL;
}
KmodInfo::KmodInfo(const KmodInfo& o)
{
(*this)=o;
}
KmodInfo& KmodInfo::operator=(const KmodInfo& o)
{
if (this!=&o) {
allowed=o.allowed;
accent=o.accent;
data=o.data;
exception_list=o.exception_list;
}
return *this;
}
// Default Trans
bool DefaultTrans::init_=false;
DefaultTrans::DefaultTrans()
{
if (init_==false) {
// Do initialization
init_=true;
}
}
LString DefaultTrans::process(char c,TransManager& k)
{
char dummy[2]="?";
dummy[0]=c;
return k.normalkey(c,dummy);
}
// Trans class
Trans::Trans()
{
int i;
for(i=0; i<256; i++)
keymap_[i]=NULL;
for(i=0; i<TEX_MAX_ACCENT+1; i++)
kmod_list_[i]=0;
}
Trans::~Trans()
{
FreeKeymap();
}
void Trans::InsertException(Trans::keyexc& exclist, char c,
const LString& data,bool flag,tex_accent accent)
{
keyexc p;
p = new Keyexc;
p -> next = exclist;
p -> c = c;
p->data = data;
p->combined=flag;
p->accent=accent;
exclist = p;
}
void Trans::FreeException(Trans::keyexc& exclist)
{
Trans::keyexc p;
p = exclist;
while (p) {
p = exclist->next;
delete exclist;
exclist = p;
}
}
void Trans::FreeKeymap()
{
int i;
for(i=0; i<256; i++)
if (keymap_[i]) {
delete keymap_[i];
keymap_[i]=NULL;
}
for(i=0; i<TEX_MAX_ACCENT+1; i++)
if (kmod_list_[i]) {
FreeException(kmod_list_[i]->exception_list);
delete kmod_list_[i];
kmod_list_[i]=0;
}
}
bool Trans::IsDefined()
{
return !name_.empty();
}
const LString& Trans::GetName()
{
return name_;
}
enum _kmaptags {
KCOMB=1,
KMOD,
KMAP,
KXMOD,
K_LAST
};
struct keyword_item kmapTags[K_LAST-1] = {
{"\\kcomb",KCOMB },
{ "\\kmap", KMAP },
{ "\\kmod", KMOD },
{ "\\kxmod", KXMOD }
};
tex_accent getkeymod(const LString&);
void Trans::AddDeadkey(tex_accent accent,const LString& keys,
const LString& allowed)
{
if (kmod_list_[accent]) {
FreeException(kmod_list_[accent]->exception_list);
delete kmod_list_[accent];
}
kmod_list_[accent] = new kmod_list_decl;
kmod_list_[accent]->data = keys;
kmod_list_[accent]->accent = accent;
if (allowed=="all") {
kmod_list_[accent]->allowed=lyx_accent_table[accent].native;
} else {
kmod_list_[accent]->allowed = allowed;
}
for(int i=0;i<keys.length();i++) {
char *temp;
temp=keymap_[(unsigned char)keys[i]]=new char[2];
temp[0]=0; temp[1]=accent;
}
kmod_list_[accent]->exception_list=NULL;
}
int Trans::Load(LyXLex &lex)
{
bool error = false;
while (lex.IsOK() && !error) {
switch(lex.lex()) {
case KMOD:
{
if (lyxerr.debugging(Error::KBMAP))
fprintf(stderr,"KMOD: %s\n",lex.text());
if (lex.next(true)) {
if (lyxerr.debugging(Error::KBMAP))
fprintf(stderr, "key `%s'\n", lex.text());
} else
return -1;
LString keys = lex.GetString();
if (lex.next(true)) {
if ( lyxerr.debugging(Error::KBMAP))
fprintf(stderr, "accent `%s'\n", lex.text());
} else
return -1;
tex_accent accent = getkeymod(lex.GetString());
if (accent==TEX_NOACCENT)
return -1;
if (lex.next(true)) {
if (lyxerr.debugging(Error::KBMAP))
fprintf(stderr,
"allowed `%s'\n",
lex.text());
} else
return -1;
LString allowed = lex.GetString();
AddDeadkey(accent, keys, allowed);
break;
}
case KCOMB: {
const char *str;
lyxerr.debug("KCOMB:",Error::KBMAP);
if (lex.next(true)) {
str=lex.text();
lyxerr.debug(str,Error::KBMAP);
} else
return -1;
tex_accent accent_1=getkeymod(str);
if (accent_1==TEX_NOACCENT) return -1;
if (lex.next(true)) {
str=lex.text();
lyxerr.debug(str,Error::KBMAP);
} else
return -1;
tex_accent accent_2=getkeymod(str);
if (accent_2==TEX_NOACCENT) return -1;
if (kmod_list_[accent_1]==NULL || kmod_list_[accent_2]==NULL)
return -1;
// Find what key accent_2 is on - should check about accent_1 also
int key;
for(key=0;key<256;key++)
if (keymap_[key] && keymap_[key][0]==0 && keymap_[key][1]==accent_2)
break;
LString allowed;
if (lex.next()) {
allowed=lex.GetString();
lyxerr.debug("allowed: "+allowed,Error::KBMAP);
} else
return -1;
InsertException(kmod_list_[accent_1]->exception_list,(char)key,allowed,true,accent_2);
}
break;
case KMAP: {
char key_from;
char *string_to;
if (lyxerr.debugging(Error::KBMAP))
fprintf(stderr, "KMAP: %s\n", lex.text());
if (lex.next(true)) {
key_from=lex.text()[0];
if (lyxerr.debugging(Error::KBMAP))
fprintf(stderr, " `%s'\n", lex.text());
} else
return -1;
if (lex.next(true)) {
char const *t = lex.text();
string_to = strcpy(new char[strlen(t)+1],t);
keymap_[(unsigned char)key_from]=string_to;
if (lyxerr.debugging(Error::KBMAP))
fprintf(stderr, " `%s'\n", string_to);
} else
return -1;
break;
}
case KXMOD: {
tex_accent accent;
char key;
const char *str;
if (lyxerr.debugging(Error::KBMAP))
fprintf(stderr, "KXMOD: %s\n", lex.text());
if (lex.next(true)) {
if (lyxerr.debugging(Error::KBMAP))
fprintf(stderr, " `%s'\n", lex.text());
accent = getkeymod(lex.GetString());
} else
return -1;
if (lex.next(true)) {
if (lyxerr.debugging(Error::KBMAP))
fprintf(stderr, " `%s'\n", lex.text());
key=lex.text()[0];
} else
return -1;
if (lex.next(true)) {
if (lyxerr.debugging(Error::KBMAP))
fprintf(stderr, " `%s'\n", lex.text());
str=lex.text();
} else
return -1;
InsertException(kmod_list_[accent]->exception_list,key,str);
break;
}
case LyXLex::LEX_FEOF:
lyxerr.debug("End of parsing",Error::KBMAP);
break;
default:
lex.printError("ParseKeymapFile: "
"Unknown tag: `$$Token'");
return -1;
}
}
return 0;
}
bool Trans::isAccentDefined(tex_accent accent,KmodInfo& i)
{
if (kmod_list_[accent]!=NULL) {
i=*kmod_list_[accent];
return true;
}
return false;
}
LString Trans::process(char c,TransManager& k)
{
char dummy[2]="?";
char *dt=dummy;
char *t=Match(c);
if ((t==NULL && (*dt=c)) || (t[0]!=0 && (dt=t)) ){
return k.normalkey(c,dt);
} else {
return k.deadkey(c,*kmod_list_[(tex_accent)t[1]]);
}
}
int Trans::Load(LString const &language)
{
LString filename = LibFileSearch("kbd", language, "kmap");
if (filename.empty())
return -1;
FreeKeymap();
LyXLex lex(kmapTags, K_LAST-1);
lex.setFile(filename);
int res=Load(lex);
if (res==0) {
name_=language;
} else
name_.erase();
return res;
}
tex_accent getkeymod(LString const &p)
/* return modifier - decoded from p and update p */
{
for (int i = 1; i <= TEX_MAX_ACCENT; i++) {
//if (lyxerr.debugging(Error::KBMAP))
// lyxerr.print("p = " + p + ", lyx_accent_table[" + int(i) + "].name = `" + lyx_accent_table[i].name);
if ( lyx_accent_table[i].name && p.contains(lyx_accent_table[i].name)) {
//lyxerr.debug("Found it!",Error::KBMAP);
return (tex_accent)i;
}
}
return TEX_NOACCENT;
}