X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fstats%2Fsort-criteria.c;h=c84f71d54cee3dc69bd8fa20bc4950bda0f7ef1c;hb=9f087e7aa4cdff1d5d46d5e188c0017a9d2d0029;hp=5bc26d9abfae6b1b89f06ede6904b994b1c9c0b1;hpb=dcf9b154cbcaa35c3d8459a201b77eec8bcb30bd;p=pspp-builds.git diff --git a/src/language/stats/sort-criteria.c b/src/language/stats/sort-criteria.c index 5bc26d9a..c84f71d5 100644 --- a/src/language/stats/sort-criteria.c +++ b/src/language/stats/sort-criteria.c @@ -1,103 +1,75 @@ -/* PSPP - computes sample statistics. - Copyright (C) 1997-9, 2000 Free Software Foundation, Inc. - Written by Ben Pfaff . +/* PSPP - a program for statistical analysis. + Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc. - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. - This program is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301, USA. */ + along with this program. If not, see . */ #include -#include -#include + +#include + #include -#include -#include "alloc.h" -#include "command.h" -#include "message.h" -#include "lexer.h" -#include "settings.h" -#include "variable.h" -#include "sort-criteria.h" -#include "sort.h" + +#include +#include +#include +#include +#include +#include #include "gettext.h" #define _(msgid) gettext (msgid) -static bool is_terminator(int tok, const int *terminators); - - /* Parses a list of sort keys and returns a struct sort_criteria based on it. Returns a null pointer on error. If SAW_DIRECTION is nonnull, sets *SAW_DIRECTION to true if at least one parenthesized sort direction was specified, false - otherwise. - If TERMINATORS is non-null, then it must be a pointer to a - null terminated list of tokens, in addition to the defaults, - which are to be considered terminators of the clause being parsed. - The default terminators are '/' and '.' - -*/ -struct sort_criteria * -sort_parse_criteria (const struct dictionary *dict, - struct variable ***vars, size_t *var_cnt, - bool *saw_direction, - const int *terminators - ) + otherwise. */ +struct case_ordering * +parse_case_ordering (struct lexer *lexer, const struct dictionary *dict, + bool *saw_direction) { - struct sort_criteria *criteria; - struct variable **local_vars = NULL; - size_t local_var_cnt; + struct case_ordering *ordering = case_ordering_create (dict); + const struct variable **vars = NULL; + size_t var_cnt = 0; - assert ((vars == NULL) == (var_cnt == NULL)); - if (vars == NULL) - { - vars = &local_vars; - var_cnt = &local_var_cnt; - } - - criteria = xmalloc (sizeof *criteria); - criteria->crits = NULL; - criteria->crit_cnt = 0; - - *vars = NULL; - *var_cnt = 0; - if (saw_direction != NULL) + if (saw_direction != NULL) *saw_direction = false; do { - size_t prev_var_cnt = *var_cnt; enum sort_direction direction; + size_t i; /* Variables. */ - if (!parse_variables (dict, vars, var_cnt, - PV_NO_DUPLICATE | PV_APPEND | PV_NO_SCRATCH)) + free (vars); + vars = NULL; + if (!parse_variables_const (lexer, dict, &vars, &var_cnt, PV_NO_SCRATCH)) goto error; /* Sort direction. */ - if (lex_match ('(')) + if (lex_match (lexer, '(')) { - if (lex_match_id ("D") || lex_match_id ("DOWN")) + if (lex_match_id (lexer, "D") || lex_match_id (lexer, "DOWN")) direction = SRT_DESCEND; - else if (lex_match_id ("A") || lex_match_id ("UP")) + else if (lex_match_id (lexer, "A") || lex_match_id (lexer, "UP")) direction = SRT_ASCEND; else { msg (SE, _("`A' or `D' expected inside parentheses.")); goto error; } - if (!lex_match (')')) + if (!lex_match (lexer, ')')) { msg (SE, _("`)' expected.")); goto error; @@ -108,57 +80,19 @@ sort_parse_criteria (const struct dictionary *dict, else direction = SRT_ASCEND; - criteria->crits = xnrealloc (criteria->crits, - *var_cnt, sizeof *criteria->crits); - criteria->crit_cnt = *var_cnt; - for (; prev_var_cnt < criteria->crit_cnt; prev_var_cnt++) - { - struct sort_criterion *c = &criteria->crits[prev_var_cnt]; - c->fv = (*vars)[prev_var_cnt]->fv; - c->width = (*vars)[prev_var_cnt]->width; - c->dir = direction; - } + for (i = 0; i < var_cnt; i++) + if (!case_ordering_add_var (ordering, vars[i], direction)) + msg (SW, _("Variable %s specified twice in sort criteria."), + var_get_name (vars[i])); } - while (token != '.' && token != '/' && !is_terminator(token, terminators)); + while (lex_token (lexer) == T_ID + && dict_lookup_var (dict, lex_tokid (lexer)) != NULL); - free (local_vars); - return criteria; + free (vars); + return ordering; error: - free (local_vars); - sort_destroy_criteria (criteria); + free (vars); + case_ordering_destroy (ordering); return NULL; } - -/* Return TRUE if TOK is a member of the list of TERMINATORS. - FALSE otherwise */ -static bool -is_terminator(int tok, const int *terminators) -{ - if (terminators == NULL ) - return false; - - while ( *terminators) - { - if (tok == *terminators++) - return true; - } - - return false; -} - - - -/* Destroys a SORT CASES program. */ -void -sort_destroy_criteria (struct sort_criteria *criteria) -{ - if (criteria != NULL) - { - free (criteria->crits); - free (criteria); - } -} - - -