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Annotation of parser3/src/main/pa_dictionary.C, revision 1.17.2.6.2.3

1.1       parser      1: /**    @file
                      2:        Parser: dictionary class  impl.
                      3: 
1.17.2.4  paf         4:        Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
1.12      paf         5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.15      paf         6: */
1.1       parser      7: 
1.17.2.6.2.3! paf         8: static const char* IDENT_DICTIONARY_C="$Date: 2003/03/20 09:41:46 $";
1.1       parser      9: 
                     10: #include "pa_dictionary.h"
1.4       parser     11: #include "pa_exception.h"
1.1       parser     12: 
1.17.2.6  paf        13: // could not make this static: gcc complains "prev decl was extern"
                     14: void pa_dictionary_add_first(Table::element_type row, Dictionary* self) {
1.4       parser     15:        // get a=>b values
1.17.2.6.2.3! paf        16:        const String* a=row->get(0);
1.4       parser     17:        // empty 'a' check
1.17.2.6.2.3! paf        18:        if(!*a) {
1.14      paf        19:                throw Exception("parser.runtime",
1.17.2.1  paf        20:                        a, 
1.4       parser     21:                        "dictionary table 'from' column elements must not be empty");
                     22:        }
1.17.2.1  paf        23:        unsigned char c=(unsigned char)a->first_char();
                     24:        if(!self->starting_line_of[c])
                     25:                self->starting_line_of[c]=self->constructor_line;
                     26: 
                     27:        self->constructor_line++;
1.1       parser     28: }
1.17.2.6.2.3! paf        29: Dictionary::Dictionary(Table& atable): table(atable) {
1.1       parser     30:        // grab first letters of first column of a table
1.17.2.6.2.3! paf        31:        constructor_line=1;  table.for_each(pa_dictionary_add_first, this);
1.1       parser     32: }
                     33: 
1.4       parser     34: #ifndef DOXYGEN
                     35: struct First_that_starts_info {
                     36:        int line;
1.17.2.6.2.3! paf        37:        const char* str;
1.4       parser     38: };
                     39: #endif
1.17.2.1  paf        40: static bool starts(Table::element_type row, First_that_starts_info* info) {
1.4       parser     41:        // skip irrelevant lines
1.17.2.1  paf        42:        if(info->line>1) {
                     43:                --info->line;
1.4       parser     44:                return 0;
                     45:        }
1.1       parser     46: 
1.17.2.6.2.3! paf        47:        return row->get(0)->this_starts(info->str);
1.1       parser     48: }
1.17.2.6.2.3! paf        49: Table::element_type Dictionary::first_that_starts(const char* str) const {
1.4       parser     50:        First_that_starts_info info;
1.17.2.6.2.3! paf        51:        if(info.line=starting_line_of[(unsigned char)*str]) {
        !            52:                info.str=str;
        !            53:                return table.first_that(starts, &info);
1.4       parser     54:        } else
1.17.2.2  paf        55:                return Table::element_type(0);
1.1       parser     56: }