diff options
Diffstat (limited to 'build/lexer')
| -rw-r--r-- | build/lexer | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/build/lexer b/build/lexer index 13f28cb..6880d39 100644 --- a/build/lexer +++ b/build/lexer @@ -40,8 +40,13 @@ namespace build class lexer: protected butl::char_scanner { public: - lexer (std::istream& is, const std::string& name) - : char_scanner (is), fail (name) {mode_.push (lexer_mode::normal);} + lexer (std::istream& is, + const std::string& name, + void (*processor) (token&, const lexer&) = nullptr) + : char_scanner (is), fail (name), processor_ (processor) + { + mode_.push (lexer_mode::normal); + } const std::string& name () const {return fail.name_;} @@ -74,6 +79,9 @@ namespace build private: token + next_impl (); + + token next_eval (); token @@ -109,6 +117,8 @@ namespace build private: fail_mark fail; + void (*processor_) (token&, const lexer&); + std::stack<lexer_mode> mode_; char pair_separator_; }; |