--- parser3/src/main/pa_dictionary.C	2002/03/27 15:30:36	1.14
+++ parser3/src/main/pa_dictionary.C	2012/03/16 09:24:13	1.26
@@ -1,77 +1,77 @@
 /**	@file
 	Parser: dictionary class  impl.
 
-	Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)
+	Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com)
 	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
-
-	$Id: pa_dictionary.C,v 1.14 2002/03/27 15:30:36 paf Exp $
 */
 
 #include "pa_dictionary.h"
 #include "pa_exception.h"
 
-void Dictionary::add_first(Array::Item *value, void *info) {
-	Dictionary& self=*static_cast<Dictionary *>(info);
-	Array *row=static_cast<Array *>(value);
-	// get a=>b values
-	const String& a=*row->get_string(0);
-	const String& b=*row->get_string(1);
-	// empty 'a' check
-	if(a.is_empty()) {
-		Pool& pool=self.pool();
-		throw Exception("parser.runtime",
-			&a, 
-			"dictionary table 'from' column elements must not be empty");
-	}
-	unsigned char c=(unsigned char)a.first_char();
-	if(!self.starting_line_of[c])
-		self.starting_line_of[c]=self.constructor_line;
-
-	double ratio=((double)b.size())/a.size();
-	if(ratio>self.fmax_ratio)
-		self.fmax_ratio=ratio;
+volatile const char * IDENT_PA_DICTIONARY_C="$Id: pa_dictionary.C,v 1.26 2012/03/16 09:24:13 moko Exp $" IDENT_PA_DICTIONARY_H;
+
+Dictionary::Dictionary(Table& atable): substs(atable.count()) {
+	// clear starting_lines
+	memset(starting_line_of, 0, sizeof(starting_line_of));
+	// grab first letters of first column of a table
+	constructor_line=1;
 
-	self.constructor_line++;
+	for(Array_iterator<ArrayString*> i(atable); i.has_next(); ) {
+		ArrayString* row=i.next();
+
+		append_subst(
+			row->get(0),
+			(row->count()>1) ? row->get(1) : 0,
+			"dictionary table 'from' column elements must not be empty"
+		);
+	}
 }
-Dictionary::Dictionary(Table& atable, double amin_ratio) : Pooled(atable.pool()), 
-	table(atable), 
-	fmax_ratio(amin_ratio)  {
 
+Dictionary::Dictionary(const String& from, const String& to): substs(1) {
 	// clear starting_lines
 	memset(starting_line_of, 0, sizeof(starting_line_of));
-	// grab first letters of first column of a table
-	constructor_line=1;  table.for_each(add_first, this);
+	constructor_line=1;
+
+	append_subst(&from, &to);
+}
+
+
+void Dictionary::append_subst(const String* from, const String* to, const char* exception_cstr) {
+	if(from->is_empty())
+		throw Exception(PARSER_RUNTIME,
+			0,
+			exception_cstr ? exception_cstr : "'from' must not be empty");
+
+	// record simplier 'from' for quick comparisons in 'starts' extremely-tight-callback
+	substs+=Dictionary::Subst(from->cstr(), (to && !to->is_empty()) ? to : 0);
+
+	unsigned char c=(unsigned char)from->first_char();
+	if(!starting_line_of[c])
+		starting_line_of[c]=constructor_line;
+
+	constructor_line++;
 }
 
 #ifndef DOXYGEN
-struct First_that_starts_info {
+struct First_that_begins_info {
 	int line;
-	const char *src;  size_t src_size;
+	const char* str;
 };
 #endif
-static void *starts(Array::Item *value, void *info) {
-	First_that_starts_info& i=*static_cast<First_that_starts_info *>(info);
+static bool starts(Dictionary::Subst subst, First_that_begins_info* info) {
 	// skip irrelevant lines
-	if(i.line>1) {
-		--i.line;
+	if(info->line>1) {
+		--info->line;
 		return 0;
 	}
-	Array *row=static_cast<Array *>(value);
 
-	int partial;
-	row->get_string(0)->cmp(partial, i.src, i.src_size);
-	return (
-		partial==0 || // full match
-		partial==1) // typo left column starts 'src'
-		?value:0;
+	return strncmp(subst.from, info->str, subst.from_length)==0;
 }
-
-void* Dictionary::first_that_starts(const char *src, size_t src_size) const {
-	First_that_starts_info info;
-	if(info.line=starting_line_of[(unsigned char)*src]) {
-		info.src=src;
-		info.src_size=src_size;
-		return table.first_that(starts, &info);
+Dictionary::Subst Dictionary::first_that_begins(const char* str) const {
+	First_that_begins_info info;
+	if((info.line=starting_line_of[(unsigned char)*str])) {
+		info.str=str;
+		return substs.first_that(starts, &info);
 	} else
 		return 0;
 }