diff options
Diffstat (limited to 'source/Utility/RegularExpression.cpp')
| -rw-r--r-- | source/Utility/RegularExpression.cpp | 43 |
1 files changed, 19 insertions, 24 deletions
diff --git a/source/Utility/RegularExpression.cpp b/source/Utility/RegularExpression.cpp index d58b315d0d1d..54f773365d99 100644 --- a/source/Utility/RegularExpression.cpp +++ b/source/Utility/RegularExpression.cpp @@ -14,9 +14,8 @@ #include <string> //---------------------------------------------------------------------- -// Enable enhanced mode if it is available. This allows for things like -// \d for digit, \s for space, and many more, but it isn't available -// everywhere. +// Enable enhanced mode if it is available. This allows for things like \d for +// digit, \s for space, and many more, but it isn't available everywhere. //---------------------------------------------------------------------- #if defined(REG_ENHANCED) #define DEFAULT_COMPILE_FLAGS (REG_ENHANCED | REG_EXTENDED) @@ -31,8 +30,8 @@ RegularExpression::RegularExpression() : m_re(), m_comp_err(1), m_preg() { } //---------------------------------------------------------------------- -// Constructor that compiles "re" using "flags" and stores the -// resulting compiled regular expression into this object. +// Constructor that compiles "re" using "flags" and stores the resulting +// compiled regular expression into this object. //---------------------------------------------------------------------- RegularExpression::RegularExpression(llvm::StringRef str) : m_re(), m_comp_err(1), m_preg() { @@ -55,17 +54,16 @@ operator=(const RegularExpression &rhs) { //---------------------------------------------------------------------- // Destructor // -// Any previously compiled regular expression contained in this -// object will be freed. +// Any previously compiled regular expression contained in this object will be +// freed. //---------------------------------------------------------------------- RegularExpression::~RegularExpression() { Free(); } //---------------------------------------------------------------------- -// Compile a regular expression using the supplied regular -// expression text and flags. The compiled regular expression lives -// in this object so that it can be readily used for regular -// expression matches. Execute() can be called after the regular -// expression is compiled. Any previously compiled regular +// Compile a regular expression using the supplied regular expression text and +// flags. The compiled regular expression lives in this object so that it can +// be readily used for regular expression matches. Execute() can be called +// after the regular expression is compiled. Any previously compiled regular // expression contained in this object will be freed. // // RETURNS @@ -75,20 +73,19 @@ RegularExpression::~RegularExpression() { Free(); } bool RegularExpression::Compile(llvm::StringRef str) { Free(); - // regcomp() on darwin does not recognize "" as a valid regular expression, so - // we substitute it with an equivalent non-empty one. + // regcomp() on darwin does not recognize "" as a valid regular expression, + // so we substitute it with an equivalent non-empty one. m_re = str.empty() ? "()" : str; m_comp_err = ::regcomp(&m_preg, m_re.c_str(), DEFAULT_COMPILE_FLAGS); return m_comp_err == 0; } //---------------------------------------------------------------------- -// Execute a regular expression match using the compiled regular -// expression that is already in this object against the match -// string "s". If any parens are used for regular expression -// matches "match_count" should indicate the number of regmatch_t -// values that are present in "match_ptr". The regular expression -// will be executed using the "execute_flags". +// Execute a regular expression match using the compiled regular expression +// that is already in this object against the match string "s". If any parens +// are used for regular expression matches "match_count" should indicate the +// number of regmatch_t values that are present in "match_ptr". The regular +// expression will be executed using the "execute_flags". //--------------------------------------------------------------------- bool RegularExpression::Execute(llvm::StringRef str, Match *match) const { int err = 1; @@ -159,14 +156,12 @@ bool RegularExpression::Match::GetMatchSpanningIndices( } //---------------------------------------------------------------------- -// Returns true if the regular expression compiled and is ready -// for execution. +// Returns true if the regular expression compiled and is ready for execution. //---------------------------------------------------------------------- bool RegularExpression::IsValid() const { return m_comp_err == 0; } //---------------------------------------------------------------------- -// Returns the text that was used to compile the current regular -// expression. +// Returns the text that was used to compile the current regular expression. //---------------------------------------------------------------------- llvm::StringRef RegularExpression::GetText() const { return m_re; } |