1 /* see copyright notice in squirrel.h */
3 #include <sqstdstring.h>
11 #define scstrchr wcschr
12 #define scsnprintf wsnprintf
14 #define scstrtok wcstok
16 #define scstrchr strchr
17 #define scsnprintf snprintf
19 #define scstrtok strtok
21 #define MAX_FORMAT_LEN 20
22 #define MAX_WFORMAT_LEN 3
23 #define ADDITIONAL_FORMAT_SPACE (100*sizeof(SQChar))
25 static SQInteger validate_format(HSQUIRRELVM v, SQChar *fmt, const SQChar *src, SQInteger n,SQInteger &width)
27 SQChar swidth[MAX_WFORMAT_LEN];
31 while (scstrchr(_SC("-+ #0"), src[n])) n++;
32 while (scisdigit(src[n])) {
36 if(wc>=MAX_WFORMAT_LEN)
37 return sq_throwerror(v,_SC("width format too long"));
41 width = scatoi(swidth);
49 while (scisdigit(src[n])) {
53 if(wc>=MAX_WFORMAT_LEN)
54 return sq_throwerror(v,_SC("precision format too long"));
58 width += scatoi(swidth);
61 if (n-start > MAX_FORMAT_LEN )
62 return sq_throwerror(v,_SC("format too long"));
63 memcpy(&fmt[1],&src[start],((n-start)+1)*sizeof(SQChar));
64 fmt[(n-start)+2] = '\0';
68 static SQInteger _string_format(HSQUIRRELVM v)
72 SQChar fmt[MAX_FORMAT_LEN];
73 sq_getstring(v,2,&format);
74 SQInteger allocated = (sq_getsize(v,2)+1)*sizeof(SQChar);
75 dest = sq_getscratchpad(v,allocated);
76 SQInteger n = 0,i = 0, nparam = 3, w = 0;
77 while(format[n] != '\0') {
78 if(format[n] != '%') {
79 assert(i < allocated);
80 dest[i++] = format[n];
83 else if(format[n+1] == '%') { //handles %%
89 if( nparam > sq_gettop(v) )
90 return sq_throwerror(v,_SC("not enough paramters for the given format string"));
91 n = validate_format(v,fmt,format,n,w);
94 SQInteger valtype = 0;
100 if(SQ_FAILED(sq_getstring(v,nparam,&ts)))
101 return sq_throwerror(v,_SC("string expected for the specified format"));
102 addlen = (sq_getsize(v,nparam)*sizeof(SQChar))+((w+1)*sizeof(SQChar));
105 case 'i': case 'd': case 'c':case 'o': case 'u': case 'x': case 'X':
106 if(SQ_FAILED(sq_getinteger(v,nparam,&ti)))
107 return sq_throwerror(v,_SC("integer expected for the specified format"));
108 addlen = (ADDITIONAL_FORMAT_SPACE)+((w+1)*sizeof(SQChar));
111 case 'f': case 'g': case 'G': case 'e': case 'E':
112 if(SQ_FAILED(sq_getfloat(v,nparam,&tf)))
113 return sq_throwerror(v,_SC("float expected for the specified format"));
114 addlen = (ADDITIONAL_FORMAT_SPACE)+((w+1)*sizeof(SQChar));
118 return sq_throwerror(v,_SC("invalid format"));
122 dest = sq_getscratchpad(v,allocated);
124 case 's': i += scsprintf(&dest[i],fmt,ts); break;
125 case 'i': i += scsprintf(&dest[i],fmt,ti); break;
126 case 'f': i += scsprintf(&dest[i],fmt,tf); break;
131 sq_pushstring(v,dest,i);
135 static void __strip_l(const SQChar *str,const SQChar **start)
137 const SQChar *t = str;
138 while(((*t) != '\0') && scisspace(*t)){ t++; }
142 static void __strip_r(const SQChar *str,SQInteger len,const SQChar **end)
148 const SQChar *t = &str[len-1];
149 while(t != str && scisspace(*t)) { t--; }
153 static SQInteger _string_strip(HSQUIRRELVM v)
155 const SQChar *str,*start,*end;
156 sq_getstring(v,2,&str);
157 SQInteger len = sq_getsize(v,2);
158 __strip_l(str,&start);
159 __strip_r(str,len,&end);
160 sq_pushstring(v,start,end - start);
164 static SQInteger _string_lstrip(HSQUIRRELVM v)
166 const SQChar *str,*start;
167 sq_getstring(v,2,&str);
168 __strip_l(str,&start);
169 sq_pushstring(v,start,-1);
173 static SQInteger _string_rstrip(HSQUIRRELVM v)
175 const SQChar *str,*end;
176 sq_getstring(v,2,&str);
177 SQInteger len = sq_getsize(v,2);
178 __strip_r(str,len,&end);
179 sq_pushstring(v,str,end - str);
183 static SQInteger _string_split(HSQUIRRELVM v)
185 const SQChar *str,*seps;
187 sq_getstring(v,2,&str);
188 sq_getstring(v,3,&seps);
189 if(sq_getsize(v,3) == 0) return sq_throwerror(v,_SC("empty separators string"));
190 SQInteger memsize = (sq_getsize(v,2)+1)*sizeof(SQChar);
191 stemp = sq_getscratchpad(v,memsize);
192 memcpy(stemp,str,memsize);
193 tok = scstrtok(stemp,seps);
195 while( tok != NULL ) {
196 sq_pushstring(v,tok,-1);
197 sq_arrayappend(v,-2);
198 tok = scstrtok( NULL, seps );
203 #define SETUP_REX(v) \
204 SQRex *self = NULL; \
205 sq_getinstanceup(v,1,(SQUserPointer *)&self,0);
207 static SQInteger _rexobj_releasehook(SQUserPointer p, SQInteger size)
209 SQRex *self = ((SQRex *)p);
210 sqstd_rex_free(self);
214 static SQInteger _regexp_match(HSQUIRRELVM v)
218 sq_getstring(v,2,&str);
219 if(sqstd_rex_match(self,str) == SQTrue)
221 sq_pushbool(v,SQTrue);
224 sq_pushbool(v,SQFalse);
228 static void _addrexmatch(HSQUIRRELVM v,const SQChar *str,const SQChar *begin,const SQChar *end)
231 sq_pushstring(v,_SC("begin"),-1);
232 sq_pushinteger(v,begin - str);
234 sq_pushstring(v,_SC("end"),-1);
235 sq_pushinteger(v,end - str);
239 static SQInteger _regexp_search(HSQUIRRELVM v)
242 const SQChar *str,*begin,*end;
244 sq_getstring(v,2,&str);
245 if(sq_gettop(v) > 2) sq_getinteger(v,3,&start);
246 if(sqstd_rex_search(self,str+start,&begin,&end) == SQTrue) {
247 _addrexmatch(v,str,begin,end);
253 static SQInteger _regexp_capture(HSQUIRRELVM v)
256 const SQChar *str,*begin,*end;
258 sq_getstring(v,2,&str);
259 if(sq_gettop(v) > 2) sq_getinteger(v,3,&start);
260 if(sqstd_rex_search(self,str+start,&begin,&end) == SQTrue) {
261 SQInteger n = sqstd_rex_getsubexpcount(self);
264 for(SQInteger i = 0;i < n; i++) {
265 sqstd_rex_getsubexp(self,i,&match);
267 _addrexmatch(v,str,match.begin,match.begin+match.len);
269 _addrexmatch(v,str,str,str); //empty match
270 sq_arrayappend(v,-2);
277 static SQInteger _regexp_subexpcount(HSQUIRRELVM v)
280 sq_pushinteger(v,sqstd_rex_getsubexpcount(self));
284 static SQInteger _regexp_constructor(HSQUIRRELVM v)
286 const SQChar *error,*pattern;
287 sq_getstring(v,2,&pattern);
288 SQRex *rex = sqstd_rex_compile(pattern,&error);
289 if(!rex) return sq_throwerror(v,error);
290 sq_setinstanceup(v,1,rex);
291 sq_setreleasehook(v,1,_rexobj_releasehook);
295 static SQInteger _regexp__typeof(HSQUIRRELVM v)
297 sq_pushstring(v,_SC("regexp"),-1);
301 #define _DECL_REX_FUNC(name,nparams,pmask) {_SC(#name),_regexp_##name,nparams,pmask}
302 static SQRegFunction rexobj_funcs[]={
303 _DECL_REX_FUNC(constructor,2,_SC(".s")),
304 _DECL_REX_FUNC(search,-2,_SC("xsn")),
305 _DECL_REX_FUNC(match,2,_SC("xs")),
306 _DECL_REX_FUNC(capture,-2,_SC("xsn")),
307 _DECL_REX_FUNC(subexpcount,1,_SC("x")),
308 _DECL_REX_FUNC(_typeof,1,_SC("x")),
312 #define _DECL_FUNC(name,nparams,pmask) {_SC(#name),_string_##name,nparams,pmask}
313 static SQRegFunction stringlib_funcs[]={
314 _DECL_FUNC(format,-2,_SC(".s")),
315 _DECL_FUNC(strip,2,_SC(".s")),
316 _DECL_FUNC(lstrip,2,_SC(".s")),
317 _DECL_FUNC(rstrip,2,_SC(".s")),
318 _DECL_FUNC(split,3,_SC(".ss")),
323 SQInteger sqstd_register_stringlib(HSQUIRRELVM v)
325 sq_pushstring(v,_SC("regexp"),-1);
326 sq_newclass(v,SQFalse);
328 while(rexobj_funcs[i].name != 0) {
329 SQRegFunction &f = rexobj_funcs[i];
330 sq_pushstring(v,f.name,-1);
331 sq_newclosure(v,f.f,0);
332 sq_setparamscheck(v,f.nparamscheck,f.typemask);
333 sq_setnativeclosurename(v,-1,f.name);
340 while(stringlib_funcs[i].name!=0)
342 sq_pushstring(v,stringlib_funcs[i].name,-1);
343 sq_newclosure(v,stringlib_funcs[i].f,0);
344 sq_setparamscheck(v,stringlib_funcs[i].nparamscheck,stringlib_funcs[i].typemask);
345 sq_setnativeclosurename(v,-1,stringlib_funcs[i].name);