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994
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1 /* tools.h */
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2 /*
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3 * #defines for non-printing ASCII characters
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4 */
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5
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6 #define NUL 0x00 /* ^@ */
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7 #define EOS 0x00 /* end of string */
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8 #define SOH 0x01 /* ^A */
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9 #define STX 0x02 /* ^B */
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10 #define ETX 0x03 /* ^C */
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11 #define EOT 0x04 /* ^D */
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12 #define ENQ 0x05 /* ^E */
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13 #define ACK 0x06 /* ^F */
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14 #define BEL 0x07 /* ^G */
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15 #define BS 0x08 /* ^H */
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16 #define HT 0x09 /* ^I */
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17 #define LF 0x0a /* ^J */
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18 #define NL '\n'
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19 #define VT 0x0b /* ^K */
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20 #define FF 0x0c /* ^L */
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21 #define CR 0x0d /* ^M */
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22 #define SO 0x0e /* ^N */
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23 #define SI 0x0f /* ^O */
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24 #define DLE 0x10 /* ^P */
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25 #define DC1 0x11 /* ^Q */
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26 #define DC2 0x12 /* ^R */
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27 #define DC3 0x13 /* ^S */
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28 #define DC4 0x14 /* ^T */
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29 #define NAK 0x15 /* ^U */
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30 #define SYN 0x16 /* ^V */
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31 #define ETB 0x17 /* ^W */
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32 #define CAN 0x18 /* ^X */
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33 #define EM 0x19 /* ^Y */
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34 #define SUB 0x1a /* ^Z */
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35 #define ESC 0x1b /* ^[ */
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36 #define FS 0x1c /* ^\ */
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37 #define GS 0x1d /* ^] */
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38 #define RS 0x1e /* ^^ */
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39 #define US 0x1f /* ^_ */
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40 #define SP 0x20 /* space */
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41 #define DEL 0x7f /* DEL */
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42
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43 #define TRUE 1
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44 #define FALSE 0
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45 #define ERR -2
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46
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47 /* Definitions of meta-characters used in pattern matching
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48 * routines. LITCHAR & NCCL are only used as token identifiers;
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49 * all the others are also both token identifier and actual symbol
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50 * used in the regular expression.
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51 */
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52
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53 #define BOL '^'
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1867
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54 #undef EOL
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994
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55 #define EOL '$'
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56 #define ANY '.'
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57 #define LITCHAR 'L'
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58 #define ESCAPE '\\'
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59 #define CCL '[' /* Character class: [...] */
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60 #define CCLEND ']'
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61 #define NEGATE '~'
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62 #define NCCL '!' /* Negative character class [^...] */
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63 #define CLOSURE '*'
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64 #define OR_SYM '|'
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65 #define DITTO '&'
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66 #define OPEN '('
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67 #define CLOSE ')'
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68
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69 /* Largest permitted size for an expanded character class. (i.e. the class
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70 * [a-z] will expand into 26 symbols; [a-z0-9] will expand into 36.)
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71 */
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72 #define CLS_SIZE 128
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73
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74 /*
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75 * Tokens are used to hold pattern templates. (see makepat())
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76 */
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77 typedef char BITMAP;
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78
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79 typedef struct token {
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80 char tok;
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81 char lchar;
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82 BITMAP *bitmap;
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83 struct token *next;
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84 } TOKEN;
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85
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86 #define TOKSIZE sizeof (TOKEN)
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87
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88 /*
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89 * An absolute maximun for strings.
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90 */
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91
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92 #define MAXSTR 132 /* Maximum numbers of characters in a line */
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93
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94 /* Macros */
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95 #define max(a,b) ((a>b)?a:b)
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96 #define min(a,b) ((a<b)?a:b)
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97 #define toupper(c) (c>='a'&&c<='z'?c-32:c)
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98
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