cpp.h 4.6 KB

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  1. #define INS 32768 /* input buffer */
  2. #define OBS 4096 /* outbut buffer */
  3. #define NARG 32 /* Max number arguments to a macro */
  4. #define NINCLUDE 64 /* Max number of include directories (-I) */
  5. #define NIF 32 /* depth of nesting of #if */
  6. #ifndef EOF
  7. #define EOF (-1)
  8. #endif
  9. #ifndef NULL
  10. #define NULL 0
  11. #endif
  12. enum toktype { END, UNCLASS, NAME, NUMBER, STRING, CCON, NL, WS, DSHARP,
  13. EQ, NEQ, LEQ, GEQ, LSH, RSH, LAND, LOR, PPLUS, MMINUS,
  14. ARROW, SBRA, SKET, LP, RP, DOT, AND, STAR, PLUS, MINUS,
  15. TILDE, NOT, SLASH, PCT, LT, GT, CIRC, OR, QUEST,
  16. COLON, ASGN, COMMA, SHARP, SEMIC, CBRA, CKET,
  17. ASPLUS, ASMINUS, ASSTAR, ASSLASH, ASPCT, ASCIRC, ASLSH,
  18. ASRSH, ASOR, ASAND, ELLIPS,
  19. DSHARP1, NAME1, DEFINED, UMINUS };
  20. enum kwtype { KIF, KIFDEF, KIFNDEF, KELIF, KELSE, KENDIF, KINCLUDE, KDEFINE,
  21. KUNDEF, KLINE, KERROR, KPRAGMA, KDEFINED,
  22. KLINENO, KFILE, KDATE, KTIME, KSTDC, KEVAL };
  23. #define ISDEFINED 01 /* has #defined value */
  24. #define ISKW 02 /* is PP keyword */
  25. #define ISUNCHANGE 04 /* can't be #defined in PP */
  26. #define ISMAC 010 /* builtin macro, e.g. __LINE__ */
  27. #define ISVARMAC 020 /* variadic macro */
  28. #define EOB 0xFE /* sentinel for end of input buffer */
  29. #define EOFC 0xFD /* sentinel for end of input file */
  30. #define XPWS 1 /* token flag: white space to assure token sep. */
  31. typedef struct token {
  32. unsigned char type;
  33. unsigned char flag;
  34. unsigned short hideset;
  35. unsigned int wslen;
  36. unsigned int len;
  37. uchar *t;
  38. } Token;
  39. typedef struct tokenrow {
  40. Token *tp; /* current one to scan */
  41. Token *bp; /* base (allocated value) */
  42. Token *lp; /* last+1 token used */
  43. int max; /* number allocated */
  44. } Tokenrow;
  45. typedef struct source {
  46. char *filename; /* name of file of the source */
  47. int line; /* current line number */
  48. int lineinc; /* adjustment for \\n lines */
  49. uchar *inb; /* input buffer */
  50. uchar *inp; /* input pointer */
  51. uchar *inl; /* end of input */
  52. int ins; /* input buffer size */
  53. int fd; /* input source */
  54. int ifdepth; /* conditional nesting in include */
  55. struct source *next; /* stack for #include */
  56. } Source;
  57. typedef struct nlist {
  58. struct nlist *next;
  59. uchar *name;
  60. int len;
  61. Tokenrow *vp; /* value as macro */
  62. Tokenrow *ap; /* list of argument names, if any */
  63. char val; /* value as preprocessor name */
  64. char flag; /* is defined, is pp name */
  65. } Nlist;
  66. typedef struct includelist {
  67. char deleted;
  68. char always;
  69. char *file;
  70. } Includelist;
  71. #define new(t) (t *)domalloc(sizeof(t))
  72. #define quicklook(a,b) (namebit[(a)&077] & (1<<((b)&037)))
  73. #define quickset(a,b) namebit[(a)&077] |= (1<<((b)&037))
  74. extern unsigned long namebit[077+1];
  75. enum errtype { WARNING, ERROR, FATAL };
  76. void expandlex(void);
  77. void fixlex(void);
  78. void setup(int, char **);
  79. #define gettokens cpp_gettokens
  80. int gettokens(Tokenrow *, int);
  81. int comparetokens(Tokenrow *, Tokenrow *);
  82. Source *setsource(char *, int, char *);
  83. void unsetsource(void);
  84. void puttokens(Tokenrow *);
  85. void process(Tokenrow *);
  86. void *dorealloc(void *, int);
  87. void *domalloc(int);
  88. void dofree(void *);
  89. void error(enum errtype, char *, ...);
  90. void flushout(void);
  91. int fillbuf(Source *);
  92. int trigraph(Source *);
  93. int foldline(Source *);
  94. Nlist *lookup(Token *, int);
  95. void control(Tokenrow *);
  96. void dodefine(Tokenrow *);
  97. void doadefine(Tokenrow *, int);
  98. void doinclude(Tokenrow *);
  99. void doif(Tokenrow *, enum kwtype);
  100. void expand(Tokenrow *, Nlist *);
  101. void builtin(Tokenrow *, int);
  102. int gatherargs(Tokenrow *, Tokenrow **, int, int *);
  103. void substargs(Nlist *, Tokenrow *, Tokenrow **);
  104. void expandrow(Tokenrow *, char *);
  105. void maketokenrow(int, Tokenrow *);
  106. Tokenrow *copytokenrow(Tokenrow *, Tokenrow *);
  107. Token *growtokenrow(Tokenrow *);
  108. Tokenrow *normtokenrow(Tokenrow *);
  109. void adjustrow(Tokenrow *, int);
  110. void movetokenrow(Tokenrow *, Tokenrow *);
  111. void insertrow(Tokenrow *, int, Tokenrow *);
  112. void peektokens(Tokenrow *, char *);
  113. void doconcat(Tokenrow *);
  114. Tokenrow *stringify(Tokenrow *);
  115. int lookuparg(Nlist *, Token *);
  116. long eval(Tokenrow *, int);
  117. void genline(void);
  118. void setempty(Tokenrow *);
  119. void makespace(Tokenrow *);
  120. char *outnum(char *, int);
  121. int digit(int);
  122. uchar *newstring(uchar *, int, int);
  123. int checkhideset(int, Nlist *);
  124. void prhideset(int);
  125. int newhideset(int, Nlist *);
  126. int unionhideset(int, int);
  127. void iniths(void);
  128. void setobjname(char *);
  129. void clearwstab(void);
  130. #define rowlen(tokrow) ((tokrow)->lp - (tokrow)->bp)
  131. extern char *outp;
  132. extern Token nltoken;
  133. extern Source *cursource;
  134. extern char *curtime;
  135. extern int incdepth;
  136. extern int ifdepth;
  137. extern int ifsatisfied[NIF];
  138. extern int Mflag;
  139. extern int nolineinfo;
  140. extern int skipping;
  141. extern int verbose;
  142. extern int Cplusplus;
  143. extern Nlist *kwdefined;
  144. extern Includelist includelist[NINCLUDE];
  145. extern char wd[];