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New option --ignore-case.

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This commit is contained in:
Bruno Haible
2003-04-02 09:26:05 +00:00
parent 0093e33163
commit 7dfd32b736
15 changed files with 583 additions and 39 deletions
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26
src/search.h
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@@ -41,6 +41,14 @@ public:
private:
void preprepare ();
/* Computes the upper bound on the indices passed to asso_values[],
assuming no alpha_increments. */
unsigned int compute_alpha_size () const;
/* Computes the unification rules between different asso_values[c],
assuming no alpha_increments. */
unsigned int * compute_alpha_unify () const;
/* Initializes each keyword's _selchars array. */
void init_selchars_tuple (bool use_all_chars, const Positions& positions) const;
/* Deletes each keyword's _selchars array. */
@@ -52,8 +60,14 @@ private:
/* Find good key positions. */
void find_positions ();
/* Computes the upper bound on the indices passed to asso_values[]. */
unsigned int compute_alpha_size (const unsigned int *alpha_inc) const;
/* Computes the unification rules between different asso_values[c]. */
unsigned int * compute_alpha_unify (const Positions& positions, const unsigned int *alpha_inc) const;
/* Initializes each keyword's _selchars array. */
void init_selchars_multiset (bool use_all_chars, const Positions& positions, const unsigned int *alpha_inc) const;
void init_selchars_multiset (bool use_all_chars, const Positions& positions, const unsigned int *alpha_unify, const unsigned int *alpha_inc) const;
/* Count the duplicate keywords that occur with the given set of positions
and a given alpha_inc[] array. */
@@ -115,13 +129,17 @@ public:
/* Adjustments to add to bytes add specific key positions. */
unsigned int * _alpha_inc;
/* Size of alphabet. */
unsigned int _alpha_size;
/* Alphabet character unification, either the identity or a mapping from
upper case characters to lower case characters (and maybe more). */
unsigned int * _alpha_unify;
/* Total number of duplicates that have been moved to _duplicate_link lists
(not counting their representatives which stay on the main list). */
int _total_duplicates;
/* Size of alphabet. */
unsigned int _alpha_size;
/* Counts occurrences of each key set character.
_occurrences[c] is the number of times that c occurs among the _selchars
of a keyword. */