379 lines
9.4 KiB
C++
379 lines
9.4 KiB
C++
|
/* see copyright notice in squirrel.h */
|
||
|
|
#include <squirrel.h>
|
||
|
|
#include <sqstdstring.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <ctype.h>
|
||
|
|
#include <assert.h>
|
||
|
|
|
||
|
|
#ifdef SQUNICODE
|
||
|
|
#define scstrchr wcschr
|
||
|
|
#define scsnprintf wsnprintf
|
||
|
|
#define scatoi _wtoi
|
||
|
|
#define scstrtok wcstok
|
||
|
|
#else
|
||
|
|
#define scstrchr strchr
|
||
|
|
#define scsnprintf snprintf
|
||
|
|
#define scatoi atoi
|
||
|
|
#define scstrtok strtok
|
||
|
|
#endif
|
||
|
|
#define MAX_FORMAT_LEN 20
|
||
|
|
#define MAX_WFORMAT_LEN 3
|
||
|
|
#define ADDITIONAL_FORMAT_SPACE (100*sizeof(SQChar))
|
||
|
|
|
||
|
|
static SQInteger validate_format(HSQUIRRELVM v, SQChar *fmt, const SQChar *src, SQInteger n,SQInteger &width)
|
||
|
|
{
|
||
|
|
SQChar swidth[MAX_WFORMAT_LEN];
|
||
|
|
SQInteger wc = 0;
|
||
|
|
SQInteger start = n;
|
||
|
|
fmt[0] = '%';
|
||
|
|
while (scstrchr(_SC("-+ #0"), src[n])) n++;
|
||
|
|
while (scisdigit(src[n])) {
|
||
|
|
swidth[wc] = src[n];
|
||
|
|
n++;
|
||
|
|
wc++;
|
||
|
|
if(wc>=MAX_WFORMAT_LEN)
|
||
|
|
return sq_throwerror(v,_SC("width format too long"));
|
||
|
|
}
|
||
|
|
swidth[wc] = '\0';
|
||
|
|
if(wc > 0) {
|
||
|
|
width = scatoi(swidth);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
width = 0;
|
||
|
|
if (src[n] == '.') {
|
||
|
|
n++;
|
||
|
|
|
||
|
|
wc = 0;
|
||
|
|
while (scisdigit(src[n])) {
|
||
|
|
swidth[wc] = src[n];
|
||
|
|
n++;
|
||
|
|
wc++;
|
||
|
|
if(wc>=MAX_WFORMAT_LEN)
|
||
|
|
return sq_throwerror(v,_SC("precision format too long"));
|
||
|
|
}
|
||
|
|
swidth[wc] = '\0';
|
||
|
|
if(wc > 0) {
|
||
|
|
width += scatoi(swidth);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (n-start > MAX_FORMAT_LEN )
|
||
|
|
return sq_throwerror(v,_SC("format too long"));
|
||
|
|
memcpy(&fmt[1],&src[start],((n-start)+1)*sizeof(SQChar));
|
||
|
|
fmt[(n-start)+2] = '\0';
|
||
|
|
return n;
|
||
|
|
}
|
||
|
|
|
||
|
|
SQRESULT sqstd_format(HSQUIRRELVM v,SQInteger nformatstringidx,SQInteger *outlen,SQChar **output)
|
||
|
|
{
|
||
|
|
const SQChar *format;
|
||
|
|
SQChar *dest;
|
||
|
|
SQChar fmt[MAX_FORMAT_LEN];
|
||
|
|
sq_getstring(v,nformatstringidx,&format);
|
||
|
|
SQInteger allocated = (sq_getsize(v,nformatstringidx)+2)*sizeof(SQChar);
|
||
|
|
dest = sq_getscratchpad(v,allocated);
|
||
|
|
SQInteger n = 0,i = 0, nparam = nformatstringidx+1, w = 0;
|
||
|
|
while(format[n] != '\0') {
|
||
|
|
if(format[n] != '%') {
|
||
|
|
assert(i < allocated);
|
||
|
|
dest[i++] = format[n];
|
||
|
|
n++;
|
||
|
|
}
|
||
|
|
else if(format[n+1] == '%') { //handles %%
|
||
|
|
dest[i++] = '%';
|
||
|
|
n += 2;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
n++;
|
||
|
|
if( nparam > sq_gettop(v) )
|
||
|
|
return sq_throwerror(v,_SC("not enough paramters for the given format string"));
|
||
|
|
n = validate_format(v,fmt,format,n,w);
|
||
|
|
if(n < 0) return -1;
|
||
|
|
SQInteger addlen = 0;
|
||
|
|
SQInteger valtype = 0;
|
||
|
|
const SQChar *ts;
|
||
|
|
SQInteger ti;
|
||
|
|
SQFloat tf;
|
||
|
|
switch(format[n]) {
|
||
|
|
case 's':
|
||
|
|
if(SQ_FAILED(sq_getstring(v,nparam,&ts)))
|
||
|
|
return sq_throwerror(v,_SC("string expected for the specified format"));
|
||
|
|
addlen = (sq_getsize(v,nparam)*sizeof(SQChar))+((w+1)*sizeof(SQChar));
|
||
|
|
valtype = 's';
|
||
|
|
break;
|
||
|
|
case 'i': case 'd': case 'o': case 'u': case 'x': case 'X':
|
||
|
|
#ifdef _SQ64
|
||
|
|
{
|
||
|
|
size_t flen = scstrlen(fmt);
|
||
|
|
SQInteger fpos = flen - 1;
|
||
|
|
SQChar f = fmt[fpos];
|
||
|
|
SQChar *prec = (SQChar *)_PRINT_INT_PREC;
|
||
|
|
while(*prec != _SC('\0')) {
|
||
|
|
fmt[fpos++] = *prec++;
|
||
|
|
}
|
||
|
|
fmt[fpos++] = f;
|
||
|
|
fmt[fpos++] = _SC('\0');
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
case 'c':
|
||
|
|
if(SQ_FAILED(sq_getinteger(v,nparam,&ti)))
|
||
|
|
return sq_throwerror(v,_SC("integer expected for the specified format"));
|
||
|
|
addlen = (ADDITIONAL_FORMAT_SPACE)+((w+1)*sizeof(SQChar));
|
||
|
|
valtype = 'i';
|
||
|
|
break;
|
||
|
|
case 'f': case 'g': case 'G': case 'e': case 'E':
|
||
|
|
if(SQ_FAILED(sq_getfloat(v,nparam,&tf)))
|
||
|
|
return sq_throwerror(v,_SC("float expected for the specified format"));
|
||
|
|
addlen = (ADDITIONAL_FORMAT_SPACE)+((w+1)*sizeof(SQChar));
|
||
|
|
valtype = 'f';
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return sq_throwerror(v,_SC("invalid format"));
|
||
|
|
}
|
||
|
|
n++;
|
||
|
|
allocated += addlen + sizeof(SQChar);
|
||
|
|
dest = sq_getscratchpad(v,allocated);
|
||
|
|
switch(valtype) {
|
||
|
|
case 's': i += scsprintf(&dest[i],fmt,ts); break;
|
||
|
|
case 'i': i += scsprintf(&dest[i],fmt,ti); break;
|
||
|
|
case 'f': i += scsprintf(&dest[i],fmt,tf); break;
|
||
|
|
};
|
||
|
|
nparam ++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
*outlen = i;
|
||
|
|
dest[i] = '\0';
|
||
|
|
*output = dest;
|
||
|
|
return SQ_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _string_format(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
SQChar *dest = NULL;
|
||
|
|
SQInteger length = 0;
|
||
|
|
if(SQ_FAILED(sqstd_format(v,2,&length,&dest)))
|
||
|
|
return -1;
|
||
|
|
sq_pushstring(v,dest,length);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __strip_l(const SQChar *str,const SQChar **start)
|
||
|
|
{
|
||
|
|
const SQChar *t = str;
|
||
|
|
while(((*t) != '\0') && scisspace(*t)){ t++; }
|
||
|
|
*start = t;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __strip_r(const SQChar *str,SQInteger len,const SQChar **end)
|
||
|
|
{
|
||
|
|
if(len == 0) {
|
||
|
|
*end = str;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
const SQChar *t = &str[len-1];
|
||
|
|
while(t != str && scisspace(*t)) { t--; }
|
||
|
|
*end = t+1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _string_strip(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
const SQChar *str,*start,*end;
|
||
|
|
sq_getstring(v,2,&str);
|
||
|
|
SQInteger len = sq_getsize(v,2);
|
||
|
|
__strip_l(str,&start);
|
||
|
|
__strip_r(str,len,&end);
|
||
|
|
sq_pushstring(v,start,end - start);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _string_lstrip(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
const SQChar *str,*start;
|
||
|
|
sq_getstring(v,2,&str);
|
||
|
|
__strip_l(str,&start);
|
||
|
|
sq_pushstring(v,start,-1);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _string_rstrip(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
const SQChar *str,*end;
|
||
|
|
sq_getstring(v,2,&str);
|
||
|
|
SQInteger len = sq_getsize(v,2);
|
||
|
|
__strip_r(str,len,&end);
|
||
|
|
sq_pushstring(v,str,end - str);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _string_split(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
const SQChar *str,*seps;
|
||
|
|
SQChar *stemp,*tok;
|
||
|
|
sq_getstring(v,2,&str);
|
||
|
|
sq_getstring(v,3,&seps);
|
||
|
|
if(sq_getsize(v,3) == 0) return sq_throwerror(v,_SC("empty separators string"));
|
||
|
|
SQInteger memsize = (sq_getsize(v,2)+1)*sizeof(SQChar);
|
||
|
|
stemp = sq_getscratchpad(v,memsize);
|
||
|
|
memcpy(stemp,str,memsize);
|
||
|
|
tok = scstrtok(stemp,seps);
|
||
|
|
sq_newarray(v,0);
|
||
|
|
while( tok != NULL ) {
|
||
|
|
sq_pushstring(v,tok,-1);
|
||
|
|
sq_arrayappend(v,-2);
|
||
|
|
tok = scstrtok( NULL, seps );
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define SETUP_REX(v) \
|
||
|
|
SQRex *self = NULL; \
|
||
|
|
sq_getinstanceup(v,1,(SQUserPointer *)&self,0);
|
||
|
|
|
||
|
|
static SQInteger _rexobj_releasehook(SQUserPointer p, SQInteger size)
|
||
|
|
{
|
||
|
|
SQRex *self = ((SQRex *)p);
|
||
|
|
sqstd_rex_free(self);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _regexp_match(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
SETUP_REX(v);
|
||
|
|
const SQChar *str;
|
||
|
|
sq_getstring(v,2,&str);
|
||
|
|
if(sqstd_rex_match(self,str) == SQTrue)
|
||
|
|
{
|
||
|
|
sq_pushbool(v,SQTrue);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
sq_pushbool(v,SQFalse);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void _addrexmatch(HSQUIRRELVM v,const SQChar *str,const SQChar *begin,const SQChar *end)
|
||
|
|
{
|
||
|
|
sq_newtable(v);
|
||
|
|
sq_pushstring(v,_SC("begin"),-1);
|
||
|
|
sq_pushinteger(v,begin - str);
|
||
|
|
sq_rawset(v,-3);
|
||
|
|
sq_pushstring(v,_SC("end"),-1);
|
||
|
|
sq_pushinteger(v,end - str);
|
||
|
|
sq_rawset(v,-3);
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _regexp_search(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
SETUP_REX(v);
|
||
|
|
const SQChar *str,*begin,*end;
|
||
|
|
SQInteger start = 0;
|
||
|
|
sq_getstring(v,2,&str);
|
||
|
|
if(sq_gettop(v) > 2) sq_getinteger(v,3,&start);
|
||
|
|
if(sqstd_rex_search(self,str+start,&begin,&end) == SQTrue) {
|
||
|
|
_addrexmatch(v,str,begin,end);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _regexp_capture(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
SETUP_REX(v);
|
||
|
|
const SQChar *str,*begin,*end;
|
||
|
|
SQInteger start = 0;
|
||
|
|
sq_getstring(v,2,&str);
|
||
|
|
if(sq_gettop(v) > 2) sq_getinteger(v,3,&start);
|
||
|
|
if(sqstd_rex_search(self,str+start,&begin,&end) == SQTrue) {
|
||
|
|
SQInteger n = sqstd_rex_getsubexpcount(self);
|
||
|
|
SQRexMatch match;
|
||
|
|
sq_newarray(v,0);
|
||
|
|
for(SQInteger i = 0;i < n; i++) {
|
||
|
|
sqstd_rex_getsubexp(self,i,&match);
|
||
|
|
if(match.len > 0)
|
||
|
|
_addrexmatch(v,str,match.begin,match.begin+match.len);
|
||
|
|
else
|
||
|
|
_addrexmatch(v,str,str,str); //empty match
|
||
|
|
sq_arrayappend(v,-2);
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _regexp_subexpcount(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
SETUP_REX(v);
|
||
|
|
sq_pushinteger(v,sqstd_rex_getsubexpcount(self));
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _regexp_constructor(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
const SQChar *error,*pattern;
|
||
|
|
sq_getstring(v,2,&pattern);
|
||
|
|
SQRex *rex = sqstd_rex_compile(pattern,&error);
|
||
|
|
if(!rex) return sq_throwerror(v,error);
|
||
|
|
sq_setinstanceup(v,1,rex);
|
||
|
|
sq_setreleasehook(v,1,_rexobj_releasehook);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static SQInteger _regexp__typeof(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
sq_pushstring(v,_SC("regexp"),-1);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define _DECL_REX_FUNC(name,nparams,pmask) {_SC(#name),_regexp_##name,nparams,pmask}
|
||
|
|
static SQRegFunction rexobj_funcs[]={
|
||
|
|
_DECL_REX_FUNC(constructor,2,_SC(".s")),
|
||
|
|
_DECL_REX_FUNC(search,-2,_SC("xsn")),
|
||
|
|
_DECL_REX_FUNC(match,2,_SC("xs")),
|
||
|
|
_DECL_REX_FUNC(capture,-2,_SC("xsn")),
|
||
|
|
_DECL_REX_FUNC(subexpcount,1,_SC("x")),
|
||
|
|
_DECL_REX_FUNC(_typeof,1,_SC("x")),
|
||
|
|
{0,0}
|
||
|
|
};
|
||
|
|
#undef _DECL_REX_FUNC
|
||
|
|
|
||
|
|
#define _DECL_FUNC(name,nparams,pmask) {_SC(#name),_string_##name,nparams,pmask}
|
||
|
|
static SQRegFunction stringlib_funcs[]={
|
||
|
|
_DECL_FUNC(format,-2,_SC(".s")),
|
||
|
|
_DECL_FUNC(strip,2,_SC(".s")),
|
||
|
|
_DECL_FUNC(lstrip,2,_SC(".s")),
|
||
|
|
_DECL_FUNC(rstrip,2,_SC(".s")),
|
||
|
|
_DECL_FUNC(split,3,_SC(".ss")),
|
||
|
|
{0,0}
|
||
|
|
};
|
||
|
|
#undef _DECL_FUNC
|
||
|
|
|
||
|
|
|
||
|
|
SQInteger sqstd_register_stringlib(HSQUIRRELVM v)
|
||
|
|
{
|
||
|
|
sq_pushstring(v,_SC("regexp"),-1);
|
||
|
|
sq_newclass(v,SQFalse);
|
||
|
|
SQInteger i = 0;
|
||
|
|
while(rexobj_funcs[i].name != 0) {
|
||
|
|
SQRegFunction &f = rexobj_funcs[i];
|
||
|
|
sq_pushstring(v,f.name,-1);
|
||
|
|
sq_newclosure(v,f.f,0);
|
||
|
|
sq_setparamscheck(v,f.nparamscheck,f.typemask);
|
||
|
|
sq_setnativeclosurename(v,-1,f.name);
|
||
|
|
sq_newslot(v,-3,SQFalse);
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
sq_newslot(v,-3,SQFalse);
|
||
|
|
|
||
|
|
i = 0;
|
||
|
|
while(stringlib_funcs[i].name!=0)
|
||
|
|
{
|
||
|
|
sq_pushstring(v,stringlib_funcs[i].name,-1);
|
||
|
|
sq_newclosure(v,stringlib_funcs[i].f,0);
|
||
|
|
sq_setparamscheck(v,stringlib_funcs[i].nparamscheck,stringlib_funcs[i].typemask);
|
||
|
|
sq_setnativeclosurename(v,-1,stringlib_funcs[i].name);
|
||
|
|
sq_newslot(v,-3,SQFalse);
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|