1 /* see copyright notice in squirrel.h */
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2 #include <squirrel.h>
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3 #include <sqstdstring.h>
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10 #define scstrchr wcschr
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11 #define scsnprintf wsnprintf
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12 #define scatoi _wtoi
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14 #define scstrchr strchr
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15 #define scsnprintf snprintf
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18 #define MAX_FORMAT_LEN 20
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19 #define MAX_WFORMAT_LEN 3
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20 #define ADDITIONAL_FORMAT_SPACE (100*sizeof(SQChar))
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22 static int validate_format(HSQUIRRELVM v, SQChar *fmt, const SQChar *src, int n,int &width)
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24 SQChar swidth[MAX_WFORMAT_LEN];
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28 while (scstrchr(_SC("-+ #0"), src[n])) n++;
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29 while (scisdigit(src[n])) {
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30 swidth[wc] = src[n];
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33 if(wc>=MAX_WFORMAT_LEN)
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34 return sq_throwerror(v,_SC("width format too long"));
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38 width = scatoi(swidth);
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42 if (src[n] == '.') {
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46 while (scisdigit(src[n])) {
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47 swidth[wc] = src[n];
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50 if(wc>=MAX_WFORMAT_LEN)
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51 return sq_throwerror(v,_SC("precision format too long"));
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55 width += scatoi(swidth);
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58 if (n-start > MAX_FORMAT_LEN )
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59 return sq_throwerror(v,_SC("format too long"));
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60 memcpy(&fmt[1],&src[start],((n-start)+1)*sizeof(SQChar));
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61 fmt[(n-start)+2] = '\0';
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65 static int _string_format(HSQUIRRELVM v)
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67 const SQChar *format;
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69 SQChar fmt[MAX_FORMAT_LEN];
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70 sq_getstring(v,2,&format);
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71 int allocated = (sq_getsize(v,2)+1)*sizeof(SQChar);
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72 dest = sq_getscratchpad(v,allocated);
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73 int n = 0,i = 0, nparam = 3, w;
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74 while(format[n] != '\0') {
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75 if(format[n] != '%') {
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76 dest[i++] = format[n];
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79 else if(format[++n] == '%') {
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83 if( nparam > sq_gettop(v) )
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84 return sq_throwerror(v,_SC("not enough paramters for the given format string"));
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85 n = validate_format(v,fmt,format,n,w);
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86 if(n < 0) return -1;
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94 if(SQ_FAILED(sq_getstring(v,nparam,&ts)))
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95 return sq_throwerror(v,_SC("string expected for the specified format"));
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96 addlen = (sq_getsize(v,nparam)*sizeof(SQChar))+((w+1)*sizeof(SQChar));
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99 case 'i': case 'd': case 'c':case 'o': case 'u': case 'x': case 'X':
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100 if(SQ_FAILED(sq_getinteger(v,nparam,&ti)))
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101 return sq_throwerror(v,_SC("integer expected for the specified format"));
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102 addlen = (ADDITIONAL_FORMAT_SPACE)+((w+1)*sizeof(SQChar));
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105 case 'f': case 'g': case 'G': case 'e': case 'E':
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106 if(SQ_FAILED(sq_getfloat(v,nparam,&tf)))
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107 return sq_throwerror(v,_SC("float expected for the specified format"));
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108 addlen = (ADDITIONAL_FORMAT_SPACE)+((w+1)*sizeof(SQChar));
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112 return sq_throwerror(v,_SC("invalid format"));
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115 if((allocated-i) < addlen)
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116 allocated += addlen - (allocated-i);
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117 dest = sq_getscratchpad(v,allocated);
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119 case 's': i += scsprintf(&dest[i],fmt,ts); break;
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120 case 'i': i += scsprintf(&dest[i],fmt,ti); break;
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121 case 'f': i += scsprintf(&dest[i],fmt,tf); break;
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126 sq_pushstring(v,dest,i);
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130 #define SETUP_REX(v) \
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131 SQRex *self = NULL; \
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132 sq_getinstanceup(v,1,(SQUserPointer *)&self,0);
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134 static int _rexobj_releasehook(SQUserPointer p, int size)
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136 SQRex *self = ((SQRex *)p);
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137 sqstd_rex_free(self);
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141 static int _regexp_match(HSQUIRRELVM v)
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145 sq_getstring(v,2,&str);
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146 if(sqstd_rex_match(self,str) == SQTrue)
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148 sq_pushinteger(v,1);
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154 static void _addrexmatch(HSQUIRRELVM v,const SQChar *str,const SQChar *begin,const SQChar *end)
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157 sq_pushstring(v,_SC("begin"),-1);
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158 sq_pushinteger(v,begin - str);
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160 sq_pushstring(v,_SC("end"),-1);
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161 sq_pushinteger(v,end - str);
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165 static int _regexp_search(HSQUIRRELVM v)
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168 const SQChar *str,*begin,*end;
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169 SQInteger start = 0;
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170 sq_getstring(v,2,&str);
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171 if(sq_gettop(v) > 2) sq_getinteger(v,3,&start);
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172 if(sqstd_rex_search(self,str+start,&begin,&end) == SQTrue) {
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173 _addrexmatch(v,str,begin,end);
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179 static int _regexp_capture(HSQUIRRELVM v)
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182 const SQChar *str,*begin,*end;
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183 SQInteger start = 0;
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184 sq_getstring(v,2,&str);
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185 if(sq_gettop(v) > 2) sq_getinteger(v,3,&start);
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186 if(sqstd_rex_search(self,str+start,&begin,&end) == SQTrue) {
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187 SQInteger n = sqstd_rex_getsubexpcount(self);
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190 for(SQInteger i = 0;i < n; i++) {
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191 sqstd_rex_getsubexp(self,i,&match);
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193 _addrexmatch(v,str,match.begin,match.begin+match.len);
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195 _addrexmatch(v,str,str,str); //empty match
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196 sq_arrayappend(v,-2);
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203 static int _regexp_subexpcount(HSQUIRRELVM v)
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206 sq_pushinteger(v,sqstd_rex_getsubexpcount(self));
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210 static int _regexp_constructor(HSQUIRRELVM v)
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212 const SQChar *error,*pattern;
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213 sq_getstring(v,2,&pattern);
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214 SQRex *rex = sqstd_rex_compile(pattern,&error);
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215 if(!rex) return sq_throwerror(v,error);
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216 sq_setinstanceup(v,1,rex);
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217 sq_setreleasehook(v,1,_rexobj_releasehook);
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221 static int _regexp__typeof(HSQUIRRELVM v)
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223 sq_pushstring(v,_SC("regexp"),-1);
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227 #define _DECL_REX_FUNC(name,nparams,pmask) {_SC(#name),_regexp_##name,nparams,pmask}
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228 static SQRegFunction rexobj_funcs[]={
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229 _DECL_REX_FUNC(constructor,2,_SC(".s")),
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230 _DECL_REX_FUNC(search,-2,_SC("xsn")),
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231 _DECL_REX_FUNC(match,2,_SC("xs")),
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232 _DECL_REX_FUNC(capture,-2,_SC("xsn")),
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233 _DECL_REX_FUNC(subexpcount,1,_SC("x")),
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234 _DECL_REX_FUNC(_typeof,1,_SC("x")),
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238 #define _DECL_FUNC(name,nparams,pmask) {_SC(#name),_string_##name,nparams,pmask}
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239 static SQRegFunction stringlib_funcs[]={
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240 _DECL_FUNC(format,-2,_SC(".s")),
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245 int sqstd_register_stringlib(HSQUIRRELVM v)
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247 sq_pushstring(v,_SC("regexp"),-1);
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248 sq_newclass(v,SQFalse);
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250 while(rexobj_funcs[i].name != 0) {
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251 SQRegFunction &f = rexobj_funcs[i];
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252 sq_pushstring(v,f.name,-1);
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253 sq_newclosure(v,f.f,0);
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254 sq_setparamscheck(v,f.nparamscheck,f.typemask);
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255 sq_setnativeclosurename(v,-1,f.name);
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256 sq_createslot(v,-3);
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259 sq_createslot(v,-3);
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262 while(stringlib_funcs[i].name!=0)
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264 sq_pushstring(v,stringlib_funcs[i].name,-1);
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265 sq_newclosure(v,stringlib_funcs[i].f,0);
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266 sq_setparamscheck(v,stringlib_funcs[i].nparamscheck,stringlib_funcs[i].typemask);
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267 sq_setnativeclosurename(v,-1,stringlib_funcs[i].name);
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268 sq_createslot(v,-3);
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