X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Flexer%2Fformat-parser.c;h=1730b4936c69590d7157655eca72d11671043c86;hb=740218f508466f16a79939cd97027b99f589d682;hp=b85b9d638c21640cabf58abbb5f59a40320fbf08;hpb=43b1296aafe7582e7dbe6c2b6a8b478d7d9b0fcf;p=pspp diff --git a/src/language/lexer/format-parser.c b/src/language/lexer/format-parser.c index b85b9d638c..1730b4936c 100644 --- a/src/language/lexer/format-parser.c +++ b/src/language/lexer/format-parser.c @@ -1,5 +1,5 @@ /* PSPP - a program for statistical analysis. - Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc. + Copyright (C) 1997-9, 2000, 2006, 2010 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 @@ -19,6 +19,7 @@ #include "format-parser.h" #include +#include #include #include "lexer.h" @@ -29,23 +30,13 @@ #include #include -#include "size_max.h" - #include "gettext.h" #define _(msgid) gettext (msgid) -/* Parses a token taking the form of a format specifier and - returns true only if successful. Emits an error message on - failure. Stores a null-terminated string representing the - format type in TYPE, and the width and number of decimal - places in *WIDTH and *DECIMALS. - - TYPE is not checked as to whether it is really the name of a - format. Both width and decimals are considered optional. If - missing, *WIDTH or *DECIMALS or both will be set to 0. */ -bool -parse_abstract_format_specifier (struct lexer *lexer, char type[FMT_TYPE_LEN_MAX + 1], - int *width, int *decimals) +static bool +parse_abstract_format_specifier__ (struct lexer *lexer, + char type[FMT_TYPE_LEN_MAX + 1], + int *width, int *decimals) { struct substring s; struct substring type_ss, width_ss, decimals_ss; @@ -56,12 +47,12 @@ parse_abstract_format_specifier (struct lexer *lexer, char type[FMT_TYPE_LEN_MAX /* Extract pieces. */ s = ds_ss (lex_tokstr (lexer)); - ss_get_chars (&s, ss_span (s, ss_cstr (CC_LETTERS)), &type_ss); - ss_get_chars (&s, ss_span (s, ss_cstr (CC_DIGITS)), &width_ss); - if (ss_match_char (&s, '.')) + ss_get_bytes (&s, ss_span (s, ss_cstr (CC_LETTERS)), &type_ss); + ss_get_bytes (&s, ss_span (s, ss_cstr (CC_DIGITS)), &width_ss); + if (ss_match_byte (&s, '.')) { has_decimals = true; - ss_get_chars (&s, ss_span (s, ss_cstr (CC_DIGITS)), &decimals_ss); + ss_get_bytes (&s, ss_span (s, ss_cstr (CC_DIGITS)), &decimals_ss); } else has_decimals = false; @@ -82,14 +73,33 @@ parse_abstract_format_specifier (struct lexer *lexer, char type[FMT_TYPE_LEN_MAX *width = strtol (ss_data (width_ss), NULL, 10); *decimals = has_decimals ? strtol (ss_data (decimals_ss), NULL, 10) : 0; - lex_get (lexer); return true; - error: +error: lex_error (lexer, _("expecting valid format specifier")); return false; } +/* Parses a token taking the form of a format specifier and + returns true only if successful. Emits an error message on + failure. Stores a null-terminated string representing the + format type in TYPE, and the width and number of decimal + places in *WIDTH and *DECIMALS. + + TYPE is not checked as to whether it is really the name of a + format. Both width and decimals are considered optional. If + missing, *WIDTH or *DECIMALS or both will be set to 0. */ +bool +parse_abstract_format_specifier (struct lexer *lexer, + char type[FMT_TYPE_LEN_MAX + 1], + int *width, int *decimals) +{ + bool ok = parse_abstract_format_specifier__ (lexer, type, width, decimals); + if (ok) + lex_get (lexer); + return ok; +} + /* Parses a format specifier from the token stream and returns true only if successful. Emits an error message on failure. The caller should call check_input_specifier() or @@ -100,15 +110,16 @@ parse_format_specifier (struct lexer *lexer, struct fmt_spec *format) { char type[FMT_TYPE_LEN_MAX + 1]; - if (!parse_abstract_format_specifier (lexer, type, &format->w, &format->d)) + if (!parse_abstract_format_specifier__ (lexer, type, &format->w, &format->d)) return false; if (!fmt_from_name (type, &format->type)) { - msg (SE, _("Unknown format type \"%s\"."), type); + msg (SE, _("Unknown format type `%s'."), type); return false; } + lex_get (lexer); return true; } @@ -124,7 +135,7 @@ parse_format_specifier_name (struct lexer *lexer, enum fmt_type *type) } if (!fmt_from_name (ds_cstr (lex_tokstr (lexer)), type)) { - msg (SE, _("Unknown format type \"%s\"."), ds_cstr (lex_tokstr (lexer))); + msg (SE, _("Unknown format type `%s'."), ds_cstr (lex_tokstr (lexer))); return false; } lex_get (lexer);