X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=inline;f=src%2Flanguage%2Flexer%2Frange-parser.c;h=d6d352b8bfff5c56057267b9af71bbe89ebb353f;hb=0fa141762183890ebd139ccd9264f08db9011539;hp=2934bc8bd63219fce9a885bd55e97f293cc60c26;hpb=3c5121dc68726f596565894f831e4fa311c99c64;p=pspp-builds.git diff --git a/src/language/lexer/range-parser.c b/src/language/lexer/range-parser.c index 2934bc8b..d6d352b8 100644 --- a/src/language/lexer/range-parser.c +++ b/src/language/lexer/range-parser.c @@ -1,3 +1,22 @@ +/* PSPP - computes sample statistics. + Copyright (C) 2005, 2006 Free Software Foundation, Inc. + Written by Ben Pfaff . + + 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 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. */ + #include #include "range-parser.h" #include @@ -12,29 +31,30 @@ #define _(msgid) gettext (msgid) #define N_(msgid) msgid -static bool parse_number (double *, const struct fmt_spec *); +static bool parse_number (struct lexer *, double *, const enum fmt_type *); /* Parses and stores a numeric value, or a range of the form "x THRU y". Open-ended ranges may be specified as "LO(WEST) THRU y" or "x THRU HI(GHEST)". Sets *X and *Y to the range or the value and returns success. - Numeric values are always accepted. If F is nonnull, then - string values are also accepted, and converted to numeric - values using the specified format. */ + Numeric values are always accepted. If FORMAT is nonnull, + then string values are also accepted, and converted to numeric + values using *FORMAT. */ bool -parse_num_range (double *x, double *y, const struct fmt_spec *f) +parse_num_range (struct lexer *lexer, + double *x, double *y, const enum fmt_type *format) { - if (lex_match_id ("LO") || lex_match_id ("LOWEST")) + if (lex_match_id (lexer, "LO") || lex_match_id (lexer, "LOWEST")) *x = LOWEST; - else if (!parse_number (x, f)) + else if (!parse_number (lexer, x, format)) return false; - if (lex_match_id ("THRU")) + if (lex_match_id (lexer, "THRU")) { - if (lex_match_id ("HI") || lex_match_id ("HIGHEST")) + if (lex_match_id (lexer, "HI") || lex_match_id (lexer, "HIGHEST")) *y = HIGHEST; - else if (!parse_number (y, f)) + else if (!parse_number (lexer, y, format)) return false; if (*y < *x) @@ -67,31 +87,23 @@ parse_num_range (double *x, double *y, const struct fmt_spec *f) /* Parses a number and stores it in *X. Returns success. - Numeric values are always accepted. If F is nonnull, then - string values are also accepted, and converted to numeric - values using the specified format. */ + Numeric values are always accepted. If FORMAT is nonnull, + then string values are also accepted, and converted to numeric + values using *FORMAT. */ static bool -parse_number (double *x, const struct fmt_spec *f) +parse_number (struct lexer *lexer, double *x, const enum fmt_type *format) { - if (lex_is_number ()) + if (lex_is_number (lexer)) { - *x = lex_number (); - lex_get (); + *x = lex_number (lexer); + lex_get (lexer); return true; } - else if (token == T_STRING && f != NULL) + else if (lex_token (lexer) == T_STRING && format != NULL) { - struct data_in di; union value v; - di.s = ds_data (&tokstr); - di.e = ds_end (&tokstr); - di.v = &v; - di.flags = 0; - di.f1 = 1; - di.f2 = ds_length (&tokstr); - di.format = *f; - data_in (&di); - lex_get (); + data_in (ds_ss (lex_tokstr (lexer)), *format, 0, 0, &v, 0); + lex_get (lexer); *x = v.f; if (*x == SYSMIS) { @@ -102,10 +114,10 @@ parse_number (double *x, const struct fmt_spec *f) } else { - if (f != NULL) - lex_error (_("expecting number or data string")); + if (format != NULL) + lex_error (lexer, _("expecting number or data string")); else - lex_force_num (); + lex_force_num (lexer); return false; } }