-%{
-// XXX: supposedly I will be screwed on very very long multi-line comments and need to replace these with a manual lexer. http://websrv.cs.fsu.edu/~engelen/courses/COP5621/Pr2.pdf
+/* Cycript - Inlining/Optimizing JavaScript Compiler
+ * Copyright (C) 2009 Jay Freeman (saurik)
+*/
+
+/* Modified BSD License {{{ */
+/*
+ * Redistribution and use in source and binary
+ * forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the
+ * above copyright notice, this list of conditions
+ * and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the
+ * above copyright notice, this list of conditions
+ * and the following disclaimer in the documentation
+ * and/or other materials provided with the
+ * distribution.
+ * 3. The name of the author may not be used to endorse
+ * or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/* }}} */
+
+/* XXX: supposedly I will be screwed on very very long multi-line comments and need to replace these with a manual lexer. http://websrv.cs.fsu.edu/~engelen/courses/COP5621/Pr2.pdf */
+%{
#define YYLTYPE cy::location
#include "Cycript.tab.hh"
typedef cy::parser::token tk;
yyextra->state_ = CYNewLine; \
}
-#define M { \
+#define V(more) { \
if (const char *nl = reinterpret_cast<const char *>(memchr(yytext, '\n', yyleng))) { \
unsigned lines(0); \
size_t left; \
yylloc->end.lines(lines); \
yylloc->end.columns(left); \
yylloc->step(); \
- N \
+ more \
} else L \
}
} else if (yyextra->size_ == 0) \
value = YY_NULL; \
else { \
- size_t copy(std::min(size, yyextra->size_)); \
+ size_t copy(size); \
+ copy = (std::min(copy, yyextra->size_)); \
memcpy(data, yyextra->data_, copy); \
yyextra->data_ += copy; \
yyextra->size_ -= copy; \
%option nounput
%option interactive
%option reentrant
+%option stack
Exponent [eE][+-]?[0-9]+
Escape \\[\\'"bfnrtv]|\\0|\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}|\\\n
RegularExpressionChars {RegularExpressionChar}*
RegularExpressionBody {RegularExpressionFirstChar}{RegularExpressionChars}
+@begin E4X
+XMLNameStart [a-zA-Z_:]
+XMLNamePart [a-zA-Z0-9.-_:]
+XMLName {XMLNameStart}{XMLNamePart}*
+@end
+
%s Div
%s RegExp
+@begin E4X
+%x XMLContent
+%x XMLTag
+@end
+
%%
<RegExp>\/{RegularExpressionBody}\/{RegularExpressionFlags} E("")
\/\/[^\n]* L
-\/\*(\n|[^\*]|\*[^/])*\*\/ M
+
+ /* http://ostermiller.org/findcomment.html */
+ /* XXX: unify these two rules using !? */
+\/\*!([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\/ V() C yylval->comment_ = new(yyextra->pool_) CYComment(apr_pstrmemdup(yyextra->pool_, yytext, yyleng)); return tk::Comment;
+\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\/ V(N)
@begin E4X
-<RegExp>\<!--(\n|[^-]|-[^-])*-->
-<RegExp>\<!\[CDATA\[(\n|[^[]|\[[^[]|\[\[[^>])*]]>
-<RegExp>\<?(\n|[^?]|\?[^>])*?>
+<RegExp>"<>" L return tk::LeftRight;
+<XMLContent>"</>" L return tk::LeftSlashRight;
-"@" L C return tk::At;
+<RegExp,XMLContent>\<!\[CDATA\[(\n|[^[]|\[[^[]|\[\[[^>])*]]> V() return tk::XMLCDATA;
+<RegExp,XMLContent>\<!--(\n|[^-]|-[^-])*--> V() return tk::XMLComment;
+<RegExp,XMLContent>\<?(\n|[^?]|\?[^>])*?> V() return tk::XMLPI;
+
+<XMLTag>"=" L return tk::Equal;
+<XMLTag>">" L return tk::Right;
+<XMLTag>"/>" L return tk::SlashRight;
+<XMLTag>"{" L return tk::OpenBrace;
+
+<XMLTag>\"(\n|[^"])*\"|'(\n|[^'])*' V() {
+ return tk::XMLAttributeValue;
+}
+
+<XMLTag>{XMLName} L return tk::XMLName;
+<XMLTag>[ \t\r\n] V() return tk::XMLWhitespace;
+
+<XMLContent>"{" L return tk::OpenBrace;
+<XMLContent>"<" L return tk::Left;
+<XMLContent>"</" L return tk::LeftSlash;
+@end
+
+@begin E4X
"::" L C return tk::ColonColon;
-"<>" L C return tk::LeftRight;
-"</>" L C return tk::LeftSlashRight;
".." L C return tk::PeriodPeriod;
-"/>" L C return tk::SlashRight;
+@end
+
+@begin E4X ObjectiveC
+"@" L C return tk::At;
@end
"&" L C return tk::Ampersand;
"each" L C yylval->identifier_ = new(yyextra->pool_) CYIdentifier("each"); return tk::Each;
+@begin E4X
+"namespace" L C yylval->identifier_ = new(yyextra->pool_) CYIdentifier("namespace"); return tk::Namespace;
+"xml" L C yylval->identifier_ = new(yyextra->pool_) CYIdentifier("xml"); return tk::XML;
+@end
+
{IdentifierStart}{IdentifierPart}* L C yylval->identifier_ = new(yyextra->pool_) CYIdentifier(apr_pstrmemdup(yyextra->pool_, yytext, yyleng)); return tk::Identifier_;
(\.[0-9]+|(0|[1-9][0-9]*)(\.[0-9]*)?){Exponent}? L C yylval->number_ = new(yyextra->pool_) CYNumber(strtod(yytext, NULL)); return tk::NumericLiteral;
0[xX][0-9a-fA-F]+ L C yylval->number_ = new(yyextra->pool_) CYNumber(strtoull(yytext + 2, NULL, 16)); return tk::NumericLiteral;
-
+0[0-7]+ L C yylval->number_ = new(yyextra->pool_) CYNumber(strtoull(yytext + 1, NULL, 8)); return tk::NumericLiteral;
0[bB][0-1]+ L C yylval->number_ = new(yyextra->pool_) CYNumber(strtoull(yytext + 2, NULL, 2)); return tk::NumericLiteral;
\"([^"\\\n]|{Escape})*\"|'([^'\\\n]|{Escape})*' L C {
char *value(reinterpret_cast<char *>(apr_palloc(yyextra->pool_, yyleng)));
char *local(value);
- for (int i(1); i != yyleng - 1; ++i) {
+ for (yy_size_t i(1), e(yyleng - 1); i != e; ++i) {
char next(yytext[i]);
if (yytext[i] == '\\')
cylex_destroy(scanner_);
}
-void CYDriver::BeginCondition(Condition condition) {
+CYDriver::Condition CYDriver::GetCondition() {
+ switch (yy_top_state(scanner_)) {
+ case RegExp:
+ return RegExpCondition;
+@begin E4X
+ case XMLContent:
+ return XMLContentCondition;
+ case XMLTag:
+ return XMLTagCondition;
+@end
+ default:
+ _assert(false);
+ }
+}
+
+void CYDriver::SetCondition(Condition condition) {
struct yyguts_t *yyg(reinterpret_cast<struct yyguts_t *>(scanner_));
switch (condition) {
case RegExpCondition:
BEGIN(RegExp);
break;
+@begin E4X
+ case XMLContentCondition:
+ BEGIN(XMLContent);
+ break;
+ case XMLTagCondition:
+ BEGIN(XMLTag);
+ break;
+@end
default:
_assert(false);
}
}
+
+void CYDriver::PushCondition(Condition condition) {
+ switch (condition) {
+ case RegExpCondition:
+ yy_push_state(RegExp, scanner_);
+ break;
+@begin E4X
+ case XMLContentCondition:
+ yy_push_state(XMLContent, scanner_);
+ break;
+ case XMLTagCondition:
+ yy_push_state(XMLTag, scanner_);
+ break;
+@end
+ default:
+ _assert(false);
+ }
+}
+
+void CYDriver::PopCondition() {
+ yy_pop_state(scanner_);
+}
projects / cycript.git / blobdiff