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When the option -k is not given, the default key positions are now computed

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depending on the set of keywords.
This commit is contained in:
Bruno Haible
2003-02-11 11:09:27 +00:00
parent 6202aaadb1
commit 810fef43ae
18 changed files with 583 additions and 123 deletions
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65
src/options.h
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@@ -41,63 +41,66 @@ enum Option_Type
/* Apply ordering heuristic to speed-up search time. */
ORDER = 1 << 1,
/* Use the given key positions. */
POSITIONS = 1 << 2,
/* Use all characters in hash function. */
ALLCHARS = 1 << 2,
ALLCHARS = 1 << 3,
/* Handle user-defined type structured keyword input. */
TYPE = 1 << 3,
TYPE = 1 << 4,
/* Randomly initialize the associated values table. */
RANDOM = 1 << 4,
RANDOM = 1 << 5,
/* Generate switch output to save space. */
SWITCH = 1 << 5,
SWITCH = 1 << 6,
/* Don't include keyword length in hash computations. */
NOLENGTH = 1 << 6,
NOLENGTH = 1 << 7,
/* Generate a length table for string comparison. */
LENTABLE = 1 << 7,
LENTABLE = 1 << 8,
/* Handle duplicate hash values for keywords. */
DUP = 1 << 8,
DUP = 1 << 9,
/* Generate the hash function "fast". */
FAST = 1 << 9,
FAST = 1 << 10,
/* Don't include user-defined type definition in output -- it's already
defined elsewhere. */
NOTYPE = 1 << 10,
NOTYPE = 1 << 11,
/* Generate strncmp rather than strcmp. */
COMP = 1 << 11,
COMP = 1 << 12,
/* Make the keyword table a global variable. */
GLOBAL = 1 << 12,
GLOBAL = 1 << 13,
/* Make the generated tables readonly (const). */
CONST = 1 << 13,
CONST = 1 << 14,
/* Generate K&R C code: no prototypes, no const. */
KRC = 1 << 14,
KRC = 1 << 15,
/* Generate C code: no prototypes, but const (user can #define it away). */
C = 1 << 15,
C = 1 << 16,
/* Generate ISO/ANSI C code: prototypes and const, but no class. */
ANSIC = 1 << 16,
ANSIC = 1 << 17,
/* Generate C++ code: prototypes, const, class, inline, enum. */
CPLUSPLUS = 1 << 17,
CPLUSPLUS = 1 << 18,
/* Use enum for constants. */
ENUM = 1 << 18,
ENUM = 1 << 19,
/* Generate #include statements. */
INCLUDE = 1 << 21,
INCLUDE = 1 << 20,
/* Assume 7-bit, not 8-bit, characters. */
SEVENBIT = 1 << 22
SEVENBIT = 1 << 21
};
/* This class denotes a set of key positions. */
@@ -115,8 +118,14 @@ public:
/* Constructors. */
Positions ();
Positions (int key1);
Positions (int key1, int key2);
Positions (int pos1);
Positions (int pos1, int pos2);
/* Copy constructor. */
Positions (const Positions& src);
/* Assignment operator. */
Positions& operator= (const Positions& src);
/* Accessors. */
int operator[] (unsigned int index) const;
@@ -130,6 +139,14 @@ public:
Returns true if there are no duplicates, false otherwise. */
bool sort ();
/* Set operations. Assumes the array is in reverse order. */
bool contains (int pos) const;
void add (int pos);
void remove (int pos);
/* Output in external syntax. */
void print () const;
private:
/* Number of positions. */
unsigned int _size;
@@ -246,13 +263,9 @@ public:
void set_delimiters (const char *delimiters);
/* Returns key positions.
Only to be called if !options[ALLCHARS]. */
Only to be used if !options[ALLCHARS]. */
const Positions& get_key_positions () const;
/* Returns total distinct key positions.
Only to be called if !options[ALLCHARS]. */
int get_max_keysig_size () const;
private:
/* Prints program usage to given stream. */
void short_usage (FILE * stream) const;