/* 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 */
-%{
-
+%top{
#if defined(__clang__)
#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wunknown-pragmas"
+#pragma clang diagnostic ignored "-Wunused-variable"
#pragma clang diagnostic ignored "-Wdeprecated-register"
+#else
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wsign-compare"
+#pragma GCC diagnostic ignored "-Wunused-function"
+#pragma GCC diagnostic ignored "-Wunused-variable"
#endif
+}
+
+%{
#define YYLTYPE CYLocation
#include "Cycript.tab.hh"
return token; \
} while (false)
-#define A new($pool)
-#define Y $pool.strmemdup(yytext, yyleng)
+#define P yyextra->pool_
+#define A new(P)
+#define Y P.strmemdup(yytext, yyleng)
#define I(type, Type, value, highlight) do { \
yylval->type ## _ = A CY ## Type; \
return -1;
}
+static void U(char *&local, unsigned point) {
+ if (false) {
+ } else if (point < 0x000080) {
+ *local++ = point;
+ } else if (point < 0x000800) {
+ *local++ = 0xc0 | point >> 0x06 & 0x1f;
+ goto one;
+ } else if (point < 0x010000) {
+ *local++ = 0xe0 | point >> 0x0c & 0x0f;
+ goto two;
+ } else if (point < 0x110000) {
+ *local++ = 0xf0 | point >> 0x12 & 0x07;
+ *local++ = 0x80 | point >> 0x0c & 0x3f;
+ two:
+ *local++ = 0x80 | point >> 0x06 & 0x3f;
+ one:
+ *local++ = 0x80 | point >> 0x00 & 0x3f;
+ } else _assert(false);
+}
+
+static void U(char *&local, const char *text, yy_size_t &i) {
+ unsigned point;
+
+ char next(text[++i]);
+ if (next != '{') {
+ point = H(text[i + 0]) << 12 | H(text[i + 1]) << 8 | H(text[i + 2]) << 4 | H(text[i + 3]);
+ i += 3;
+ } else {
+ point = 0;
+ for (;;) {
+ next = text[++i];
+ if (next == '}')
+ break;
+ point = (point << 4) | H(next);
+ }
+ }
+
+ U(local, point);
+}
+
#define YY_INPUT(data, value, size) { \
if (yyextra->data_.eof()) \
value = YY_NULL; \
%option bison-locations
%option nodefault
%option noyywrap
-%option yylineno
+%option noyylineno
%option nounput
%option nounistd
%option 8bit
%option backup
%option batch
-%option full
%option never-interactive
%option pointer
%option reentrant
%option stack
-Escape \\[\\'"bfnrtv]|\\0|\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}|\\\n
+%option full
+%option ecs
+
+U1 [\x00-\x7f]
+U0 [\x80-\xbf]
+U2 [\xc2-\xdf]
+U3 [\xe0-\xef]
+U4 [\xf0-\xf4]
+
+HexDigit [0-9a-fA-F]
+LineTerminatorSequence \r?\n|\r|\xe2\x80[\xa8\xa9]
+WhiteSpace [\x09\x0b\x0c\x20]|\xc2\xa0|\xef\xbb\xbf
+UnicodeEscape \\u({HexDigit}{4}|\{{HexDigit}+\})
-IdentifierStart [a-zA-Z$_]
-IdentifierPart [a-zA-Z$_0-9]
+OctalEscape \\[1-7]|\\[4-7][0-7]|\\[0-3][0-7][0-7]?
+StringEscape \\['"\\bfnrtv]|\\0|{OctalEscape}|\\x{HexDigit}{2}|{UnicodeEscape}
+StringExtra {StringEscape}|\\{LineTerminatorSequence}
+SingleString ([^'\\\n]|{StringExtra})*
+DoubleString ([^"\\\n]|{StringExtra})*
+StringPrefix '{SingleString}|\"{DoubleString}
+
+@include UnicodeIDStart.l
+@include UnicodeIDContinue.l
+
+IdentifierMore [$_]
+
+UnicodeStart {IdentifierMore}|{UnicodeIDStart}
+UnicodePart {IdentifierMore}|\xe2\x80[\x8c\x8d]|{UnicodeIDContinue}
+UnicodeFail {U2}|{U3}|{U3}{U0}|{U4}|{U4}{U0}|{U4}{U0}{U0}
+UnicodeScrap {UnicodePart}*{UnicodeFail}?
+
+IdentifierStart {UnicodeStart}|{UnicodeEscape}
+IdentifierPart {UnicodePart}|{UnicodeEscape}
+IdentifierFail {UnicodeFail}|\\(u({HexDigit}{0,3}|\{{HexDigit}*))?
+IdentifierScrap {IdentifierPart}*{IdentifierFail}?
NonTerminator [^\n]
BackslashSequence \\{NonTerminator}
RegularExpressionFirstChar [^\n*\\/]|{BackslashSequence}
RegularExpressionChar [^\n\\/]|{BackslashSequence}
-RegularExpressionFlags {IdentifierPart}*
+RegularExpressionFlags {UnicodePart}*
RegularExpressionChars {RegularExpressionChar}*
RegularExpressionBody {RegularExpressionFirstChar}{RegularExpressionChars}
%%
+ /* RegEx {{{ */
<RegExp>\/{RegularExpressionBody}\/{RegularExpressionFlags} L C I(literal, RegEx(Y), tk::RegularExpressionLiteral, hi::Constant);
+<RegExp>\/{RegularExpressionBody}\/{RegularExpressionFlags}{UnicodeFail} L E("invalid flags")
<RegExp>\/{RegularExpressionBody}?\\? L E("unterminated regex")
-
+ /* }}} */
+ /* Comment {{{ */
#![^\n]* L M
-
\/\/[^\n]* L M
- /* http://ostermiller.org/findcomment.html */
- /* XXX: unify these two rules using !? */
+ /* http://ostermiller.org/findcomment.html */
+ /* XXX: unify these two rules using !? */
\/\*!([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\/ V() C I(comment, Comment(Y), tk::Comment, hi::Comment);
\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\/ V(N) M
\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\** V() E("invalid comment")
-
+ /* }}} */
+ /* Element {{{ */
@begin E4X
<RegExp>"<>" L F(tk::LeftRight, hi::Structure);
<XMLContent>"</>" L F(tk::LeftSlashRight, hi::Structure);
<XMLContent>"<" L F(tk::Left, hi::Structure);
<XMLContent>"</" L F(tk::LeftSlash, hi::Structure);
@end
-
+ /* }}} */
+ /* Operator {{{ */
"..." L C F(tk::PeriodPeriodPeriod, hi::Meta);
".." L E("invalid operator")
"=" L C F(tk::Equal, hi::Operator);
"==" L C F(tk::EqualEqual, hi::Operator);
"===" L C F(tk::EqualEqualEqual, hi::Operator);
-"=>" L C F(tk::EqualRight, hi::Operator);
+"=>" L C F(yylval->newline_ ? tk::EqualRight_ : tk::EqualRight, hi::Operator);
"!" L C F(tk::Exclamation, hi::Operator);
"!=" L C F(tk::ExclamationEqual, hi::Operator);
"!==" L C F(tk::ExclamationEqualEqual, hi::Operator);
"[" L C F(tk::OpenBracket, hi::Structure);
"]" L C F(tk::CloseBracket, hi::Structure);
-
+ /* }}} */
+ /* Keyword {{{ */
"@error" L C F(tk::AtError, hi::Error);
@begin Java
"@class" L C F(tk::AtClass, hi::Meta);
@end
-@begin C
-"typedef" L C I(identifier, Identifier("typedef"), tk::Typedef, hi::Meta);
-"unsigned" L C I(identifier, Identifier("unsigned"), tk::Unsigned, hi::Type);
-"signed" L C I(identifier, Identifier("signed"), tk::Signed, hi::Type);
-"extern" L C I(identifier, Identifier("extern"), tk::Extern, hi::Type);
-@end
-
@begin C
"@encode" L C F(tk::AtEncode, hi::Meta);
@end
@begin ObjectiveC
"@end" L C F(tk::AtEnd, hi::Meta);
+"@false" L C F(tk::AtFalse, hi::Constant);
"@implementation" L C F(yyextra->no_.AtImplementation ? tk::AtImplementation_ : tk::AtImplementation, hi::Meta);
"@import" L C F(tk::AtImport, hi::Special);
+"@NO" L C F(tk::AtNo, hi::Constant);
+"@null" L C F(tk::AtNull, hi::Constant);
"@selector" L C F(tk::AtSelector, hi::Meta);
+"@true" L C F(tk::AtTrue, hi::Constant);
+"@YES" L C F(tk::AtYes, hi::Constant);
+@end
-"NULL" L C I(identifier, Identifier("NULL"), tk::Identifier_, hi::Constant);
-"nil" L C I(identifier, Identifier("nil"), tk::Identifier_, hi::Constant);
-"YES" L C I(identifier, Identifier("YES"), tk::Yes, hi::Constant);
-"NO" L C I(identifier, Identifier("NO"), tk::No, hi::Constant);
+@({UnicodeStart}{UnicodeScrap}|{UnicodeFail}) L E("invalid keyword")
+ /* }}} */
+ /* Highlight {{{ */
+"undefined" L C I(identifier, Identifier("undefined"), tk::Identifier_, hi::Operator);
-"bool" L C I(identifier, Identifier("bool"), tk::Identifier_, hi::Type);
-"BOOL" L C I(identifier, Identifier("BOOL"), tk::Identifier_, hi::Type);
-"id" L C I(identifier, Identifier("id"), tk::Identifier_, hi::Type);
-"SEL" L C I(identifier, Identifier("SEL"), tk::Identifier_, hi::Type);
+@begin ObjectiveC
+"bool" L C I(identifier, Identifier("bool"), tk::Identifier_, hi::Type);
+"BOOL" L C I(identifier, Identifier("BOOL"), tk::Identifier_, hi::Type);
+"id" L C I(identifier, Identifier("id"), tk::Identifier_, hi::Type);
+"nil" L C I(identifier, Identifier("nil"), tk::Identifier_, hi::Constant);
+"NULL" L C I(identifier, Identifier("NULL"), tk::Identifier_, hi::Constant);
+"SEL" L C I(identifier, Identifier("SEL"), tk::Identifier_, hi::Type);
@end
+ /* }}} */
+ /* Reserved {{{ */
+"abstract" L C /*FII*/ I(identifier, Identifier("abstract"), tk::Abstract, hi::Meta);
+"await" L C /*II?*/ I(identifier, Identifier("await"), tk::Await, hi::Meta);
+"boolean" L C /*FII*/ I(identifier, Identifier("boolean"), tk::Boolean, hi::Type);
+"break" L R /*KKK*/ F(tk::Break, hi::Control);
+"byte" L C /*FII*/ I(identifier, Identifier("byte"), tk::Byte, hi::Type);
+"case" L C /*KKK*/ F(tk::Case, hi::Control);
+"catch" L C /*KKK*/ F(tk::Catch, hi::Control);
+"char" L C /*FII*/ I(identifier, Identifier("char"), tk::Char, hi::Type);
+"class" L C /*FFK*/ F(tk::Class, hi::Meta);
+"const" L C /*FFK*/ F(tk::Const, hi::Meta);
+"continue" L R /*KKK*/ F(tk::Continue, hi::Control);
+"debugger" L C /*FKK*/ F(tk::Debugger, hi::Meta);
+"default" L C /*KKK*/ F(tk::Default, hi::Control);
+"delete" L C /*KKK*/ F(tk::Delete, hi::Operator);
+"do" L C /*KKK*/ F(tk::Do, hi::Control);
+"double" L C /*FII*/ I(identifier, Identifier("double"), tk::Double, hi::Type);
+"else" L C /*KKK*/ F(tk::Else, hi::Control);
+"enum" L C /*FFF*/ F(tk::Enum, hi::Meta);
+"export" L C /*FFK*/ F(tk::Export, hi::Meta);
+"extends" L C /*FFK*/ F(tk::Extends, hi::Meta);
+"false" L C /*LLL*/ F(tk::False, hi::Constant);
+"final" L C /*FII*/ I(identifier, Identifier("final"), tk::Final, hi::Meta);
+"finally" L C /*KKK*/ F(tk::Finally, hi::Control);
+"float" L C /*FII*/ I(identifier, Identifier("float"), tk::Float, hi::Type);
+"for" L C /*KKK*/ F(tk::For, hi::Control);
+"function" L C /*KKK*/ F(yyextra->no_.Function ? tk::Function_ : tk::Function, hi::Meta);
+"goto" L C /*FII*/ I(identifier, Identifier("goto"), tk::Goto, hi::Control);
+"if" L C /*KKK*/ F(tk::If, hi::Control);
+"implements" L C /*FSS*/ I(identifier, Identifier("implements"), tk::Implements, hi::Meta);
+"import" L C /*FFK*/ F(tk::Import, hi::Meta);
+"in" L C /*KKK*/ F(yyextra->in_.top() ? tk::In_ : tk::In, hi::Operator);
+"instanceof" L C /*KKK*/ F(tk::InstanceOf, hi::Operator);
+"int" L C /*FII*/ I(identifier, Identifier("int"), tk::Int, hi::Type);
+"interface" L C /*FSS*/ I(identifier, Identifier("interface"), tk::Interface, hi::Meta);
+"let" L C /*IS?*/ I(identifier, Identifier("let"), tk::Let, hi::Meta);
+"long" L C /*FII*/ I(identifier, Identifier("long"), tk::Long, hi::Type);
+"native" L C /*FII*/ I(identifier, Identifier("native"), tk::Native, hi::Meta);
+"new" L C /*KKK*/ F(tk::New, hi::Operator);
+"null" L C /*LLL*/ F(tk::Null, hi::Constant);
+"package" L C /*FSS*/ I(identifier, Identifier("package"), tk::Package, hi::Meta);
+"private" L C /*FSS*/ I(identifier, Identifier("private"), tk::Private, hi::Meta);
+"protected" L C /*FSS*/ I(identifier, Identifier("protected"), tk::Protected, hi::Meta);
+"public" L C /*FSS*/ I(identifier, Identifier("public"), tk::Public, hi::Meta);
+"return" L R /*KKK*/ F(tk::Return, hi::Control);
+"short" L C /*FII*/ I(identifier, Identifier("short"), tk::Short, hi::Type);
+"static" L C /*FS?*/ I(identifier, Identifier("static"), tk::Static, hi::Meta);
+"super" L C /*FFK*/ F(tk::Super, hi::Constant);
+"switch" L C /*KKK*/ F(tk::Switch, hi::Control);
+"synchronized" L C /*FII*/ I(identifier, Identifier("synchronized"), tk::Synchronized, hi::Meta);
+"this" L C /*KKK*/ F(tk::This, hi::Constant);
+"throw" L R /*KKK*/ F(tk::Throw, hi::Control);
+"throws" L C /*FII*/ I(identifier, Identifier("throws"), tk::Throws, hi::Meta);
+"transient" L C /*FII*/ I(identifier, Identifier("transient"), tk::Transient, hi::Meta);
+"true" L C /*LLL*/ F(tk::True, hi::Constant);
+"try" L C /*KKK*/ F(tk::Try, hi::Control);
+"typeof" L C /*KKK*/ F(tk::TypeOf, hi::Operator);
+"var" L C /*KKK*/ F(tk::Var, hi::Meta);
+"void" L C /*KKK*/ F(tk::Void, hi::Operator);
+"volatile" L C /*FII*/ I(identifier, Identifier("volatile"), tk::Volatile, hi::Meta);
+"while" L C /*KKK*/ F(tk::While, hi::Control);
+"with" L C /*KKK*/ F(tk::With, hi::Control);
+"yield" L R /*IS?*/ I(identifier, Identifier("yield"), tk::Yield, hi::Control);
+
+"auto" L C F(tk::Auto, hi::Meta);
+"each" L C I(identifier, Identifier("each"), tk::Each, hi::Control);
+"of" L C I(identifier, Identifier("of"), tk::Of, hi::Operator);
-"undefined" L C I(identifier, Identifier("undefined"), tk::Identifier_, hi::Operator);
-
-"false" L C I(false, False(), tk::False, hi::Constant);
-"null" L C I(null, Null(), tk::Null, hi::Constant);
-"true" L C I(true, True(), tk::True, hi::Constant);
-
-"auto" L C I(word, Word("auto"), tk::Auto, hi::Meta);
-"break" L R I(word, Word("break"), tk::Break, hi::Control);
-"case" L C I(word, Word("case"), tk::Case, hi::Control);
-"catch" L C I(word, Word("catch"), tk::Catch, hi::Control);
-"continue" L R I(word, Word("continue"), tk::Continue, hi::Control);
-"default" L C I(word, Word("default"), tk::Default, hi::Control);
-"delete" L C I(word, Word("delete"), tk::Delete, hi::Operator);
-"do" L C I(word, Word("do"), tk::Do, hi::Control);
-"else" L C I(word, Word("else"), tk::Else, hi::Control);
-"finally" L C I(word, Word("finally"), tk::Finally, hi::Control);
-"for" L C I(word, Word("for"), tk::For, hi::Control);
-"function" L C I(word, Word("function"), yyextra->no_.Function ? tk::Function_ : tk::Function, hi::Meta);
-"if" L C I(word, Word("if"), tk::If, hi::Control);
-"in" L C I(word, Word("in"), yyextra->in_.top() ? tk::In_ : tk::In, hi::Operator);
-"instanceof" L C I(word, Word("instanceof"), tk::InstanceOf, hi::Operator);
-"new" L C I(word, Word("new"), tk::New, hi::Operator);
-"return" L R I(word, Word("return"), tk::Return, hi::Control);
-"switch" L C I(word, Word("switch"), tk::Switch, hi::Control);
-"this" L C I(this, This(), tk::This, hi::Constant);
-"throw" L R I(word, Word("throw"), tk::Throw, hi::Control);
-"try" L C I(word, Word("try"), tk::Try, hi::Control);
-"typeof" L C I(word, Word("typeof"), tk::TypeOf, hi::Operator);
-"var" L C I(word, Word("var"), tk::Var, hi::Meta);
-"void" L C I(word, Word("void"), tk::Void, hi::Operator);
-"while" L C I(word, Word("while"), tk::While, hi::Control);
-"with" L C I(word, Word("with"), tk::With, hi::Control);
-
-"debugger" L C I(word, Word("debugger"), tk::Debugger, hi::Meta);
-
-"const" L C I(word, Word("const"), tk::Const, hi::Meta);
-
-"class" L C I(word, Word("class"), tk::Class, hi::Meta);
-"enum" L C I(word, Word("enum"), tk::Enum, hi::Meta);
-"export" L C I(word, Word("export"), tk::Export, hi::Meta);
-"extends" L C I(word, Word("extends"), tk::Extends, hi::Meta);
-"import" L C I(word, Word("import"), tk::Import, hi::Meta);
-"super" L C I(word, Word("super"), tk::Super, hi::Constant);
-
-"implements" L C I(identifier, Identifier("implements"), tk::Implements, hi::Meta);
-"interface" L C I(identifier, Identifier("interface"), tk::Interface, hi::Meta);
-"package" L C I(identifier, Identifier("package"), tk::Package, hi::Meta);
-"private" L C I(identifier, Identifier("private"), tk::Private, hi::Meta);
-"protected" L C I(identifier, Identifier("protected"), tk::Protected, hi::Meta);
-"public" L C I(identifier, Identifier("public"), tk::Public, hi::Meta);
-"static" L C I(identifier, Identifier("static"), tk::Static, hi::Meta);
-
-"abstract" L C I(identifier, Identifier("abstract"), tk::Abstract, hi::Meta);
-"boolean" L C I(identifier, Identifier("boolean"), tk::Boolean, hi::Type);
-"byte" L C I(identifier, Identifier("byte"), tk::Byte, hi::Type);
-"char" L C I(identifier, Identifier("char"), tk::Char, hi::Type);
-"double" L C I(identifier, Identifier("double"), tk::Double, hi::Type);
-"final" L C I(identifier, Identifier("final"), tk::Final, hi::Meta);
-"float" L C I(identifier, Identifier("float"), tk::Float, hi::Type);
-"goto" L C I(identifier, Identifier("goto"), tk::Goto, hi::Control);
-"int" L C I(identifier, Identifier("int"), tk::Int, hi::Type);
-"long" L C I(identifier, Identifier("long"), tk::Long, hi::Type);
-"native" L C I(identifier, Identifier("native"), tk::Native, hi::Meta);
-"short" L C I(identifier, Identifier("short"), tk::Short, hi::Type);
-"synchronized" L C I(identifier, Identifier("synchronized"), tk::Synchronized, hi::Meta);
-"throws" L C I(identifier, Identifier("throws"), tk::Throws, hi::Meta);
-"transient" L C I(identifier, Identifier("transient"), tk::Transient, hi::Meta);
-"volatile" L C I(identifier, Identifier("volatile"), tk::Volatile, hi::Meta);
-
-"let" L C I(identifier, Identifier("let"), tk::Let, hi::Meta);
-"yield" L C I(identifier, Identifier("yield"), tk::Yield, hi::Control);
-
-"each" L C I(identifier, Identifier("each"), tk::Each, hi::Control);
-"of" L C I(identifier, Identifier("of"), tk::Of, hi::Operator);
+@begin C
+"extern" L C I(identifier, Identifier("extern"), tk::Extern, hi::Type);
+"signed" L C I(identifier, Identifier("signed"), tk::Signed, hi::Type);
+"typedef" L C I(identifier, Identifier("typedef"), tk::Typedef, hi::Meta);
+"unsigned" L C I(identifier, Identifier("unsigned"), tk::Unsigned, hi::Type);
+@end
+
+@begin ObjectiveC
+"NO" L C I(identifier, Identifier("NO"), tk::No, hi::Constant);
+"YES" L C I(identifier, Identifier("YES"), tk::Yes, hi::Constant);
+@end
@begin E4X
-"namespace" L C I(identifier, Identifier("namespace"), tk::Namespace, hi::Meta);
-"xml" L C I(identifier, Identifier("xml"), tk::XML, hi::Meta);
+"namespace" L C I(identifier, Identifier("namespace"), tk::Namespace, hi::Meta);
+"xml" L C I(identifier, Identifier("xml"), tk::XML, hi::Meta);
@end
+ /* }}} */
+ /* Identifier {{{ */
+{UnicodeStart}{UnicodePart}* L C I(identifier, Identifier(Y), tk::Identifier_, hi::Identifier);
+
+{IdentifierStart}{IdentifierPart}* L C {
+ char *value(A char[yyleng + 1]);
+ char *local(value);
+
+ for (yy_size_t i(0), e(yyleng); i != e; ++i) {
+ char next(yytext[i]);
+ if (next != '\\')
+ *local++ = next;
+ else
+ U(local, yytext, ++i);
+ }
-{IdentifierStart}{IdentifierPart}* L C I(identifier, Identifier(Y), tk::Identifier_, hi::Identifier);
+ *local = '\0';
+ I(identifier, Identifier(value), tk::Identifier_, hi::Identifier);
+}
+({IdentifierStart}{IdentifierPart}*)?{IdentifierFail} L E("invalid identifier")
+ /* }}} */
+ /* Number {{{ */
+0[0-7]+ L C I(number, Number(strtoull(yytext + 1, NULL, 8)), tk::NumericLiteral, hi::Constant);
+0[0-9]+ L C I(number, Number(strtoull(yytext + 1, NULL, 10)), tk::NumericLiteral, hi::Constant);
0[xX][0-9a-fA-F]+ L C I(number, Number(strtoull(yytext + 2, NULL, 16)), tk::NumericLiteral, hi::Constant);
-0[0-7]+ L C I(number, Number(strtoull(yytext + 1, NULL, 8)), tk::NumericLiteral, hi::Constant);
+0[oO][0-7]+ L C I(number, Number(strtoull(yytext + 2, NULL, 8)), tk::NumericLiteral, hi::Constant);
0[bB][0-1]+ L C I(number, Number(strtoull(yytext + 2, NULL, 2)), tk::NumericLiteral, hi::Constant);
(\.[0-9]+|(0|[1-9][0-9]*)(\.[0-9]*)?)([eE][+-]?[0-9]+)? L C I(number, Number(strtod(yytext, NULL)), tk::NumericLiteral, hi::Constant);
-(\.[0-9]+|(0|[1-9][0-9]*)(\.[0-9]*)?)[eE][+-]?{IdentifierPart}* L E("invalid exponent")
-(\.?[0-9]|(0|[1-9][0-9]*)?\.){IdentifierPart}* L E("invalid number")
-
-\"([^"\\\n]|{Escape})*\"|'([^'\\\n]|{Escape})*' L C {
+(\.[0-9]+|(0|[1-9][0-9]*)(\.[0-9]*)?)[eE][+-]?{IdentifierScrap} L E("invalid exponent")
+(\.?[0-9]|(0|[1-9][0-9]*)\.){IdentifierScrap} L E("invalid number")
+ /* }}} */
+ /* String {{{ */
+'{SingleString}'|\"{DoubleString}\" L C {
char *value(A char[yyleng]);
char *local(value);
char next(yytext[i]);
if (yytext[i] == '\\')
- switch (next = yytext[++i]) {
- case '\n': continue;
+ // XXX: support more line continuation characters
+ if (false) line: {
+ yylloc->end.lines(1);
+ yylloc->end.columns(yyleng - i);
+ } else switch (next = yytext[++i]) {
+ case '\n': goto line;
+
case '\\': next = '\\'; break;
case '\'': next = '\''; break;
case '"': next = '"'; break;
case 'r': next = '\r'; break;
case 't': next = '\t'; break;
case 'v': next = '\v'; break;
- case '0': next = '\0'; break;
+
+ case '0': case '1': case '2': case '3':
+ if (yytext[i + 1] < '0' || yytext[i + 1] > '7')
+ next = H(yytext[i]), i += 0;
+ else if (yytext[i + 2] < '0' || yytext[i + 2] > '7')
+ next = H(yytext[i]) << 3 | H(yytext[i + 1]), i += 1;
+ else
+ next = H(yytext[i]) << 6 | H(yytext[i + 1]) << 3 | H(yytext[i + 2]), i += 2;
+ break;
+
+ case '4': case '5': case '6': case '7':
+ if (yytext[i + 1] < '0' || yytext[i + 1] > '7')
+ next = H(yytext[i]), i += 0;
+ else
+ next = H(yytext[i]) << 3 | H(yytext[i + 1]), i += 1;
+ break;
case 'x':
- next = H(yytext[i + 1]) << 4 | H(yytext[i + 2]);
+ U(local, H(yytext[i + 1]) << 4 | H(yytext[i + 2]));
i += 2;
- break;
+ continue;
+
+ case 'u':
+ U(local, yytext, i);
+ continue;
}
*local++ = next;
I(string, String(value, local - value), tk::StringLiteral, hi::Constant);
}
-(\"([^"\\\n]|{Escape})*|'([^'\\\n]|{Escape})*)(\\(x.{0,2}|u.{0,4})?)? L E("invalid escape")
-
-\r?\n|\r|\xe2\x80[\xa8\xa9] yylloc->step(); yylloc->end.lines(); N
+{StringPrefix}\\(x.{0,2}|u([^{].{0,3}|\{[^}]*)?|{UnicodeFail})? L E("invalid escape")
+{StringPrefix} L E("invalid string")
+ /* }}} */
-[ \t] L
+{LineTerminatorSequence} yylloc->step(); yylloc->end.lines(); N
+{WhiteSpace} L
<<EOF>> if (yyextra->auto_) { yyextra->auto_ = false; F(tk::AutoComplete, hi::Nothing); } L yyterminate();
-@{IdentifierPart}+|\xe2.|. L E("unknown token")
+. L E("invalid character")
%%
#if defined(__clang__)
#pragma clang diagnostic pop
+#else
+// must not pop -Wunused-function
+//#pragma GCC diagnostic pop
#endif
projects / cycript.git / blobdiff