cpp.h

   1 #ifndef MCC_CPP_H
   2 #define MCC_CPP_H
   3
   4 #include "stdio.h"
   5 #include "stdbool.h"
   6
   7 // A location in a source file
   8 struct sloc {
   9     const char *name;
  10     int line;
  11     int col;
  12 };
  13
  14 // A source file
  15 struct incfile {
  16     struct incfile *prev;
  17     FILE *f;
  18     int line;
  19     bool must_close; // must close f after use?
  20     bool eof;
  21     int cond_d, cond_td; // condition depth/condition true depth
  22     char name[1];
  23 };
  24
  25 // A macro, or a macro argument
  26 struct macro {
  27     struct macro *next;
  28     struct macro *args; // argument list
  29     bool has_args; // if has_args && !args then it's a macro like FOO()
  30     char *text; // what the macro expands to
  31     struct sloc sloc; // location of definition
  32     char name[1]; // macro/macro argument name
  33 };
  34
  35 // Preprocessor state
  36 struct cpp {
  37     struct incfile *include_top;
  38     struct incfile *stale_files;
  39     char *line_buf;
  40     struct sloc line_loc;
  41     struct macro *macros; // all defined macros
  42     char *include_dirs;
  43 };
  44
  45 void cpp_init(struct cpp *cpp);
  46 void cpp_delete(struct cpp *cpp);
  47 bool cpp_open_include_file(struct cpp *cpp, const char *name);
  48 void cpp_include_file(struct cpp *cpp, const char *name, FILE *f, bool must_close);
  49 void cpp_read_line(struct cpp *cpp);
  50 void cpp_process_line(struct cpp *cpp);
  51
  52 bool cpp_lex_number(struct cpp *cpp, char **p_start, char **output);
  53
  54 #endif
  55