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| author | Colomban Wendling <ban@herbesfolles.org> | 2012-12-30 20:28:05 +0100 |
|---|---|---|
| committer | Colomban Wendling <ban@herbesfolles.org> | 2012-12-30 20:28:05 +0100 |
| commit | 650e2266b902a5d3029753b4575a5fa01ea12db2 (patch) | |
| tree | 75299c8c43922dce4c5958c2a20205ae04278449 | |
| parent | 1d26bd892cb1f9dbeacd9538413601758a0051a2 (diff) | |
| download | scintilla-mirror-650e2266b902a5d3029753b4575a5fa01ea12db2.tar.gz | |
Fix parsing of JavaScript regular expressions containing a delimiter in a range
Regular expression "/[/]/" is valid, the second "/" being escaped by the
character range ("[]"). Also, escape any \-prefixed character, including
"[" and "]".
| -rw-r--r-- | lexers/LexCPP.cxx | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/lexers/LexCPP.cxx b/lexers/LexCPP.cxx index 834c273fa..87482176d 100644 --- a/lexers/LexCPP.cxx +++ b/lexers/LexCPP.cxx @@ -471,6 +471,7 @@ void SCI_METHOD LexerCPP::Lex(unsigned int startPos, int length, int initStyle, bool continuationLine = false; bool isIncludePreprocessor = false; bool isStringInPreprocessor = false; + bool inRERange = false; int lineCurrent = styler.GetLine(startPos); if ((MaskActive(initStyle) == SCE_C_PREPROCESSOR) || @@ -544,6 +545,7 @@ void SCI_METHOD LexerCPP::Lex(unsigned int startPos, int length, int initStyle, visibleChars = 0; lastWordWasUUID = false; isIncludePreprocessor = false; + inRERange = false; if (preproc.IsInactive()) { activitySet = activeFlag; sc.SetState(sc.state | activitySet); @@ -748,16 +750,18 @@ void SCI_METHOD LexerCPP::Lex(unsigned int startPos, int length, int initStyle, case SCE_C_REGEX: if (sc.atLineStart) { sc.SetState(SCE_C_DEFAULT|activitySet); - } else if (sc.ch == '/') { + } else if (! inRERange && sc.ch == '/') { sc.Forward(); while ((sc.ch < 0x80) && islower(sc.ch)) sc.Forward(); // gobble regex flags sc.SetState(SCE_C_DEFAULT|activitySet); - } else if (sc.ch == '\\') { - // Gobble up the quoted character - if (sc.chNext == '\\' || sc.chNext == '/') { - sc.Forward(); - } + } else if (sc.ch == '\\' && (sc.chNext != '\n' && sc.chNext != '\r')) { + // Gobble up the escaped character + sc.Forward(); + } else if (sc.ch == '[') { + inRERange = true; + } else if (sc.ch == ']') { + inRERange = false; } break; case SCE_C_STRINGEOL: @@ -838,6 +842,7 @@ void SCI_METHOD LexerCPP::Lex(unsigned int startPos, int length, int initStyle, && (!setCouldBePostOp.Contains(chPrevNonWhite) || !FollowsPostfixOperator(sc, styler))) { sc.SetState(SCE_C_REGEX|activitySet); // JavaScript's RegEx + inRERange = false; } else if (sc.ch == '\"') { if (sc.chPrev == 'R') { styler.Flush(); |