michael@0: /*
michael@0: *******************************************************************************
michael@0: *
michael@0: *   Copyright (C) 2002-2011, International Business Machines
michael@0: *   Corporation and others.  All Rights Reserved.
michael@0: *
michael@0: *******************************************************************************
michael@0: *   file name:  uset_props.cpp
michael@0: *   encoding:   US-ASCII
michael@0: *   tab size:   8 (not used)
michael@0: *   indentation:4
michael@0: *
michael@0: *   created on: 2004aug30
michael@0: *   created by: Markus W. Scherer
michael@0: *
michael@0: *   C wrappers around UnicodeSet functions that are implemented in
michael@0: *   uniset_props.cpp, split off for modularization.
michael@0: */
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: #include "unicode/uobject.h"
michael@0: #include "unicode/uset.h"
michael@0: #include "unicode/uniset.h"
michael@0: #include "cmemory.h"
michael@0: #include "unicode/ustring.h"
michael@0: #include "unicode/parsepos.h"
michael@0: 
michael@0: U_NAMESPACE_USE
michael@0: 
michael@0: U_CAPI USet* U_EXPORT2
michael@0: uset_openPattern(const UChar* pattern, int32_t patternLength,
michael@0:                  UErrorCode* ec)
michael@0: {
michael@0:     UnicodeString pat(patternLength==-1, pattern, patternLength);
michael@0:     UnicodeSet* set = new UnicodeSet(pat, *ec);
michael@0:     /* test for NULL */
michael@0:     if(set == 0) {
michael@0:         *ec = U_MEMORY_ALLOCATION_ERROR;
michael@0:         return 0;
michael@0:     }
michael@0: 
michael@0:     if (U_FAILURE(*ec)) {
michael@0:         delete set;
michael@0:         set = NULL;
michael@0:     }
michael@0:     return (USet*) set;
michael@0: }
michael@0: 
michael@0: U_CAPI USet* U_EXPORT2
michael@0: uset_openPatternOptions(const UChar* pattern, int32_t patternLength,
michael@0:                  uint32_t options,
michael@0:                  UErrorCode* ec)
michael@0: {
michael@0:     UnicodeString pat(patternLength==-1, pattern, patternLength);
michael@0:     UnicodeSet* set = new UnicodeSet(pat, options, NULL, *ec);
michael@0:     /* test for NULL */
michael@0:     if(set == 0) {
michael@0:         *ec = U_MEMORY_ALLOCATION_ERROR;
michael@0:         return 0;
michael@0:     }
michael@0: 
michael@0:     if (U_FAILURE(*ec)) {
michael@0:         delete set;
michael@0:         set = NULL;
michael@0:     }
michael@0:     return (USet*) set;
michael@0: }
michael@0: 
michael@0: 
michael@0: U_CAPI int32_t U_EXPORT2 
michael@0: uset_applyPattern(USet *set,
michael@0:                   const UChar *pattern, int32_t patternLength,
michael@0:                   uint32_t options,
michael@0:                   UErrorCode *status){
michael@0: 
michael@0:     // status code needs to be checked since we 
michael@0:     // dereference it
michael@0:     if(status == NULL || U_FAILURE(*status)){
michael@0:         return 0;
michael@0:     }
michael@0: 
michael@0:     // check only the set paramenter
michael@0:     // if pattern is NULL or null terminate
michael@0:     // UnicodeString constructor takes care of it
michael@0:     if(set == NULL){
michael@0:         *status = U_ILLEGAL_ARGUMENT_ERROR;
michael@0:         return 0;
michael@0:     }
michael@0: 
michael@0:     UnicodeString pat(pattern, patternLength);
michael@0: 
michael@0:     ParsePosition pos;
michael@0:    
michael@0:     ((UnicodeSet*) set)->applyPattern(pat, pos, options, NULL, *status);
michael@0:     
michael@0:     return pos.getIndex();
michael@0: }
michael@0: 
michael@0: U_CAPI void U_EXPORT2
michael@0: uset_applyIntPropertyValue(USet* set,
michael@0:                UProperty prop, int32_t value, UErrorCode* ec) {
michael@0:     ((UnicodeSet*) set)->applyIntPropertyValue(prop, value, *ec);
michael@0: }
michael@0: 
michael@0: U_CAPI void U_EXPORT2
michael@0: uset_applyPropertyAlias(USet* set,
michael@0:                         const UChar *prop, int32_t propLength,
michael@0:                         const UChar *value, int32_t valueLength,
michael@0:             UErrorCode* ec) {
michael@0: 
michael@0:     UnicodeString p(prop, propLength);
michael@0:     UnicodeString v(value, valueLength);
michael@0: 
michael@0:     ((UnicodeSet*) set)->applyPropertyAlias(p, v, *ec);
michael@0: }
michael@0: 
michael@0: U_CAPI UBool U_EXPORT2
michael@0: uset_resemblesPattern(const UChar *pattern, int32_t patternLength,
michael@0:                       int32_t pos) {
michael@0: 
michael@0:     UnicodeString pat(pattern, patternLength);
michael@0: 
michael@0:     return ((pos+1) < pat.length() &&
michael@0:             pat.charAt(pos) == (UChar)91/*[*/) ||
michael@0:             UnicodeSet::resemblesPattern(pat, pos);
michael@0: }
michael@0: 
michael@0: U_CAPI int32_t U_EXPORT2
michael@0: uset_toPattern(const USet* set,
michael@0:                UChar* result, int32_t resultCapacity,
michael@0:                UBool escapeUnprintable,
michael@0:                UErrorCode* ec) {
michael@0:     UnicodeString pat;
michael@0:     ((const UnicodeSet*) set)->toPattern(pat, escapeUnprintable);
michael@0:     return pat.extract(result, resultCapacity, *ec);
michael@0: }
michael@0: 
michael@0: U_CAPI void U_EXPORT2
michael@0: uset_closeOver(USet* set, int32_t attributes) {
michael@0:     ((UnicodeSet*) set)->UnicodeSet::closeOver(attributes);
michael@0: }