本文整理汇总了C++中UnicodeSet::charAt方法的典型用法代码示例。如果您正苦于以下问题：C++ UnicodeSet::charAt方法的具体用法？C++ UnicodeSet::charAt怎么用？C++ UnicodeSet::charAt使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类UnicodeSet的用法示例。
在下文中一共展示了UnicodeSet::charAt方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: scanSet
//---------------------------------------------------------------------------------
//
// scanSet Construct a UnicodeSet from the text at the current scan
// position. Advance the scan position to the first character
// after the set.
//
// A new RBBI setref node referring to the set is pushed onto the node
// stack.
//
// The scan position is normally under the control of the state machine
// that controls rule parsing. UnicodeSets, however, are parsed by
// the UnicodeSet constructor, not by the RBBI rule parser.
//
//---------------------------------------------------------------------------------
void RBBIRuleScanner::scanSet() {
UnicodeSet *uset;
ParsePosition pos;
int startPos;
int i;
if (U_FAILURE(*fRB->fStatus)) {
return;
}
pos.setIndex(fScanIndex);
startPos = fScanIndex;
UErrorCode localStatus = U_ZERO_ERROR;
uset = new UnicodeSet(fRB->fRules, pos, USET_IGNORE_SPACE,
fSymbolTable,
localStatus);
if (U_FAILURE(localStatus)) {
// TODO: Get more accurate position of the error from UnicodeSet's return info.
// UnicodeSet appears to not be reporting correctly at this time.
RBBIDebugPrintf("UnicodeSet parse postion.ErrorIndex = %d\n", pos.getIndex());
error(localStatus);
delete uset;
return;
}
// Verify that the set contains at least one code point.
//
if (uset->charAt(0) == -1) {
// This set is empty.
// Make it an error, because it almost certainly is not what the user wanted.
// Also, avoids having to think about corner cases in the tree manipulation code
// that occurs later on.
error(U_BRK_RULE_EMPTY_SET);
delete uset;
return;
}
// Advance the RBBI parse postion over the UnicodeSet pattern.
// Don't just set fScanIndex because the line/char positions maintained
// for error reporting would be thrown off.
i = pos.getIndex();
for (;;) {
if (fNextIndex >= i) {
break;
}
nextCharLL();
}
if (U_SUCCESS(*fRB->fStatus)) {
RBBINode *n;
n = pushNewNode(RBBINode::setRef);
n->fFirstPos = startPos;
n->fLastPos = fNextIndex;
fRB->fRules.extractBetween(n->fFirstPos, n->fLastPos, n->fText);
// findSetFor() serves several purposes here:
// - Adopts storage for the UnicodeSet, will be responsible for deleting.
// - Mantains collection of all sets in use, needed later for establishing
// character categories for run time engine.
// - Eliminates mulitiple instances of the same set.
// - Creates a new uset node if necessary (if this isn't a duplicate.)
findSetFor(n->fText, n, uset);
}
}