本文整理汇总了C++中TokenizeContext类的典型用法代码示例。如果您正苦于以下问题:C++ TokenizeContext类的具体用法?C++ TokenizeContext怎么用?C++ TokenizeContext使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了TokenizeContext类的15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: consume_string_literal
void consume_string_literal(TokenizeContext &context)
{
int lookahead = 0;
// Consume starting quote, this can be ' or "
char quote_type = context.next();
lookahead++;
bool escapedNext = false;
while (context.withinRange(lookahead)) {
char c = context.next(lookahead);
if (c == quote_type && !escapedNext)
break;
if (c == '\\' && !escapedNext)
escapedNext = true;
else
escapedNext = false;
lookahead++;
}
// consume ending quote
lookahead++;
context.consume(tok_String, lookahead);
}
示例2: try_to_consume_keyword
bool try_to_consume_keyword(TokenizeContext& context, int keyword)
{
const char* str = get_token_text(keyword);
int str_len = (int) strlen(str);
// Check if every letter matches
for (int i=0; i < str_len; i++) {
if (context.next(i) != str[i])
return false;
}
// Check that this is really the end of the word
if (is_acceptable_inside_identifier(context.next(str_len)))
return false;
// Don't match as a keyword if the next character is (. This might be
// a bad idea.
if (context.next(str_len) == '(')
return false;
// Keyword matches, now consume it
context.consume(keyword, str_len);
return true;
}
示例3: consume_whitespace
void consume_whitespace(TokenizeContext &context)
{
int lookahead = 0;
while (is_whitespace(context.next(lookahead)))
lookahead++;
context.consume(tok_Whitespace, lookahead);
}
示例4: consume_identifier
void consume_identifier(TokenizeContext &context)
{
int lookahead = 0;
while (is_acceptable_inside_identifier(context.next(lookahead)))
lookahead++;
context.consume(tok_Identifier, lookahead);
}
示例5: consume_whitespace
void consume_whitespace(TokenizeContext &context)
{
int lookahead = 0;
while (is_whitespace(context.next(lookahead)))
lookahead++;
context.consume(TK_WHITESPACE, lookahead);
}
示例6: consume_comment
void consume_comment(TokenizeContext& context)
{
int lookahead = 0;
while (context.withinRange(lookahead) && !is_newline(context.next(lookahead)))
lookahead++;
context.consume(tok_Comment, lookahead);
}
示例7: consume_name
void consume_name(TokenizeContext &context)
{
int lookahead = 0;
// consume the leading :
lookahead++;
while (is_acceptable_inside_identifier(context.next(lookahead)))
lookahead++;
context.consume(TK_NAME, lookahead);
}
示例8: consume_hex_number
void consume_hex_number(TokenizeContext &context)
{
int lookahead = 0;
// consume the 0x part
lookahead += 2;
while (is_hexadecimal_digit(context.next(lookahead)))
lookahead++;
context.consume(TK_HEX_INTEGER, lookahead);
}
示例9: consume_symbol
void consume_symbol(TokenizeContext &context)
{
int lookahead = 0;
// consume the leading :
lookahead++;
while (is_acceptable_inside_identifier(context.next(lookahead)))
lookahead++;
context.consume(tok_ColonString, lookahead);
}
示例10: consume_hex_number
void consume_hex_number(TokenizeContext &context)
{
int lookahead = 0;
// consume the 0x part
lookahead += 2;
while (is_hexadecimal_digit(context.next(lookahead)))
lookahead++;
context.consume(tok_HexInteger, lookahead);
}
示例11: match_number
bool match_number(TokenizeContext &context)
{
int lookahead = 0;
if (context.next(lookahead) == '.')
lookahead++;
if (is_number(context.next(lookahead)))
return true;
return false;
}
示例12: consume_triple_quoted_string_literal
void consume_triple_quoted_string_literal(TokenizeContext &context)
{
int lookahead = 0;
// Consume initial <<<
lookahead += 3;
while (context.withinRange(lookahead) &&
!(context.next(lookahead) == '>'
&& context.next(lookahead + 1) == '>'
&& context.next(lookahead + 2) == '>'))
lookahead++;
// Consume closing >>>
lookahead += 3;
context.consume(tok_String, lookahead);
}
示例13: consume_color_literal
void consume_color_literal(TokenizeContext &context)
{
int lookahead = 0;
// consume #
lookahead++;
while (is_hexadecimal_digit(context.next(lookahead)))
lookahead++;
int hex_digits = lookahead - 1;
// acceptable lengths are 3, 4, 6 or 8 characters (not including #)
if (hex_digits == 3 || hex_digits == 4 || hex_digits == 6 || hex_digits == 8)
context.consume(tok_Color, lookahead);
else
context.consume(tok_Unrecognized, lookahead);
}
示例14: consume_multiline_comment
void consume_multiline_comment(TokenizeContext& context)
{
int lookahead = 0;
// Keep track of the current depth, for nested blocks.
int depth = 0;
while (context.withinRange(lookahead)) {
if (context.next(lookahead) == '{' && context.next(lookahead + 1) == '-') {
// Found a comment opener, increase depth. Also advance lookahead so that
// we don't get confused by this: {-}
lookahead += 2;
depth++;
continue;
}
if (context.next(lookahead) == '-' && context.next(lookahead + 1) == '}') {
// Found a comment ender.
depth--;
lookahead += 2;
if (depth == 0)
break;
continue;
}
lookahead++;
}
context.consume(tok_Comment, lookahead);
}
示例15: consume_number
void consume_number(TokenizeContext &context)
{
int lookahead = 0;
bool dot_encountered = false;
// Possibly consume minus sign
if (context.next(lookahead) == '-') {
lookahead++;
}
while (true) {
if (is_number(context.next(lookahead))) {
lookahead++;
} else if (context.next(lookahead) == '.') {
// If we've already encountered a dot, finish and don't consume
// this one.
if (dot_encountered)
break;
// Special case: if this dot is followed by another dot, then it should
// be tokenized as TWO_DOTS, so don't consume it here.
if (context.next(lookahead+1) == '.')
break;
// Another special case, if the dot is followed by an identifier, then
// don't consume it here. It might be an object call.
if (is_identifier_first_letter(context.next(lookahead + 1)))
break;
// Otherwise, consume the dot
lookahead++;
dot_encountered = true;
}
else {
break;
}
}
if (dot_encountered)
context.consume(tok_Float, lookahead);
else
context.consume(tok_Integer, lookahead);
}