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      1 /*
      2  ***************************************************************************
      3  * Copyright (C) 2008-2009, International Business Machines Corporation
      4  * and others. All Rights Reserved.
      5  ***************************************************************************
      6  *   file name:  uspoof_build.cpp
      7  *   encoding:   US-ASCII
      8  *   tab size:   8 (not used)
      9  *   indentation:4
     10  *
     11  *   created on: 2008 Dec 8
     12  *   created by: Andy Heninger
     13  *
     14  *   Unicode Spoof Detection Data Builder
     15  *   Builder-related functions are kept in separate files so that applications not needing
     16  *   the builder can more easily exclude them, typically by means of static linking.
     17  *
     18  *   There are three relatively independent sets of Spoof data,
     19  *      Confusables,
     20  *      Whole Script Confusables
     21  *      ID character extensions.
     22  *
     23  *   The data tables for each are built separately, each from its own definitions
     24  */
     25 
     26 #include "unicode/utypes.h"
     27 #include "unicode/uspoof.h"
     28 #include "unicode/unorm.h"
     29 #include "unicode/uregex.h"
     30 #include "unicode/ustring.h"
     31 #include "cmemory.h"
     32 #include "uspoof_impl.h"
     33 #include "uhash.h"
     34 #include "uvector.h"
     35 #include "uassert.h"
     36 #include "uarrsort.h"
     37 #include "uspoof_conf.h"
     38 #include "uspoof_wsconf.h"
     39 
     40 #if !UCONFIG_NO_NORMALIZATION
     41 
     42 U_NAMESPACE_USE
     43 
     44 
     45 // The main data building function
     46 
     47 U_CAPI USpoofChecker * U_EXPORT2
     48 uspoof_openFromSource(const char *confusables,  int32_t confusablesLen,
     49                       const char *confusablesWholeScript, int32_t confusablesWholeScriptLen,
     50                       int32_t *errorType, UParseError *pe, UErrorCode *status) {
     51 
     52     if (U_FAILURE(*status)) {
     53         return NULL;
     54     }
     55 #if UCONFIG_NO_REGULAR_EXPRESSIONS
     56     *status = U_UNSUPPORTED_ERROR;
     57     return NULL;
     58 #else
     59     if (errorType!=NULL) {
     60         *errorType = 0;
     61     }
     62     if (pe != NULL) {
     63         pe->line = 0;
     64         pe->offset = 0;
     65         pe->preContext[0] = 0;
     66         pe->postContext[0] = 0;
     67     }
     68 
     69     // Set up a shell of a spoof detector, with empty data.
     70     SpoofData *newSpoofData = new SpoofData(*status);
     71     SpoofImpl *This = new SpoofImpl(newSpoofData, *status);
     72 
     73     // Compile the binary data from the source (text) format.
     74     ConfusabledataBuilder::buildConfusableData(This, confusables, confusablesLen, errorType, pe, *status);
     75     buildWSConfusableData(This, confusablesWholeScript, confusablesWholeScriptLen, pe, *status);
     76 
     77     if (U_FAILURE(*status)) {
     78         delete This;
     79         This = NULL;
     80     }
     81     return (USpoofChecker *)This;
     82 #endif // UCONFIG_NO_REGULAR_EXPRESSIONS
     83 }
     84 
     85 #endif
     86