icuSources/i18n/uspoof_build.cpp

   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