From 9d1a23ad53688bda31aaecd61ac7ab2997e16677 Mon Sep 17 00:00:00 2001
From: twanvl <twanvl@0fc631ac-6414-0410-93d0-97cfa31319b6>
Date: Wed, 3 Sep 2008 17:55:59 +0000
Subject: [PATCH] Use Regex instead of wxRegEx everywhere

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@1199 0fc631ac-6414-0410-93d0-97cfa31319b6
---
 src/data/locale.cpp         |  4 +-
 src/data/symbol_font.cpp    | 74 ++++++++++++++++++++-----------------
 src/render/text/element.cpp |  6 ++-
 3 files changed, 48 insertions(+), 36 deletions(-)

diff --git a/src/data/locale.cpp b/src/data/locale.cpp
index 156b15d6..6eb1dea9 100644
--- a/src/data/locale.cpp
+++ b/src/data/locale.cpp
@@ -12,9 +12,9 @@
 #include <data/stylesheet.hpp>
 #include <data/symbol_font.hpp>
 #include <util/io/package_manager.hpp>
+#include <util/regex.hpp>
 #include <script/to_value.hpp>
 #include <wx/wfstream.h>
-#include <wx/regex.h>
 
 #include <wx/stdpaths.h>
 #if defined(__WXMSW__)
@@ -70,7 +70,7 @@ IMPLEMENT_REFLECTION_NO_GET_MEMBER(SubLocale) {
 // ----------------------------------------------------------------------------- : Wildcards
 
 bool match_wildcard(const String& wildcard, const String& name) {
-	return wxRegEx(replace_all(replace_all(wildcard, _("."), _("\\.")), _("*"), _(".*"))).Matches(name);
+	return Regex(replace_all(replace_all(wildcard, _("."), _("\\.")), _("*"), _(".*"))).matches(name);
 }
 
 SubLocaleP find_wildcard(map<String,SubLocaleP>& items, const String& name) {
diff --git a/src/data/symbol_font.cpp b/src/data/symbol_font.cpp
index 5754cf65..1d0f4a04 100644
--- a/src/data/symbol_font.cpp
+++ b/src/data/symbol_font.cpp
@@ -88,7 +88,7 @@ class SymbolInFont : public IntrusivePtrBase<SymbolInFont> {
 	Scriptable<bool> enabled;		///< Is this symbol enabled?
 	bool             regex;			///< Should this symbol be matched by a regex?
 	int              draw_text;		///< The index of the captured regex expression to draw, or -1 to not draw text
-	wxRegEx          code_regex;	///< Regex for matching the symbol code
+	Regex            code_regex;	///< Regex for matching the symbol code
 	FontP            text_font;		///< Font to draw text in.
 	Alignment        text_alignment;
 	double           text_margin_left;
@@ -109,7 +109,6 @@ SymbolInFont::SymbolInFont()
 	: enabled(true)
 	, regex(false)
 	, draw_text(-1)
-	, code_regex()
 	, text_alignment(ALIGN_MIDDLE_CENTER)
 	, text_margin_left(0), text_margin_right(0)
 	, text_margin_top(0),  text_margin_bottom(0)
@@ -177,7 +176,7 @@ IMPLEMENT_REFLECTION(SymbolInFont) {
 	REFLECT(regex);
 	REFLECT_IF_READING
 		if (regex)
-			code_regex.Compile(code, wxRE_ADVANCED);
+			code_regex.assign(code);
 	REFLECT(draw_text);
 	REFLECT(text_font);
 	REFLECT(text_alignment);
@@ -198,28 +197,33 @@ void SymbolFont::split(const String& text, SplitSymbols& out) const {
 		// check symbol list
 		FOR_EACH_CONST(sym, symbols) {
 			if (!sym->code.empty() && sym->enabled) {
-				size_t start, len = 1;
-				if (sym->regex && sym->code_regex.IsValid() && sym->code_regex.Matches(text.substr(pos), wxRE_NOTBOL | wxRE_NOTEOL) &&
-						sym->code_regex.GetMatch(&start, &len) && start == 0 && len > 0) { //Matches the regex
-					if (sym->draw_text >= 0 && sym->draw_text < (int)sym->code_regex.GetMatchCount()) {
-						size_t draw_end;
-						sym->code_regex.GetMatch(&start, &draw_end, sym->draw_text);
-						out.push_back(DrawableSymbol(
-										text.substr(pos, len),
-										text.substr(pos + start, draw_end - start),
-										*sym));
-					} else {
-						out.push_back(DrawableSymbol(
-										text.substr(pos, len),
-										_(""),
-										*sym));
+				if (sym->regex) {
+					if (sym->code_regex.empty()) {
+						sym->code_regex.assign(sym->code);
+					}
+					Regex::Results results;
+					if (sym->code_regex.matches(results,text.begin() + pos, text.end())
+							&& results.position() == 0 && results.length() > 0) { //Matches the regex
+						if (sym->draw_text >= 0 && sym->draw_text < (int)results.size()) {
+							out.push_back(DrawableSymbol(
+											results.str(),
+											results.str(sym->draw_text),
+											*sym));
+						} else {
+							out.push_back(DrawableSymbol(
+											results.str(),
+											_(""),
+											*sym));
+						}
+						pos += results.length();
+						goto next_symbol;
+					}
+				} else {
+					if (is_substr(text, pos, sym->code)) {
+						out.push_back(DrawableSymbol(sym->code, sym->draw_text >= 0 ? sym->code : _(""), *sym));
+						pos += sym->code.size();
+						goto next_symbol; // continue two levels
 					}
-					pos += len;
-					goto next_symbol;
-				} else if (is_substr(text, pos, sym->code)) {
-					out.push_back(DrawableSymbol(sym->code, sym->draw_text >= 0 ? sym->code : _(""), *sym));
-					pos += sym->code.size();
-					goto next_symbol; // continue two levels
 				}
 			}
 		}
@@ -236,14 +240,18 @@ size_t SymbolFont::recognizePrefix(const String& text, size_t start) const {
 		// check symbol list
 		FOR_EACH_CONST(sym, symbols) {
 			if (!sym->code.empty() && sym->enabled) {
-				size_t start, len = 1;
-				if (sym->regex && sym->code_regex.IsValid() && sym->code_regex.Matches(text.substr(pos), wxRE_NOTBOL | wxRE_NOTEOL) &&
-						sym->code_regex.GetMatch(&start, &len) && start == 0 && len > 0) { //Matches the regex
-					pos += len;
-					goto next_symbol;
-				} else if (is_substr(text, pos, sym->code)) {
-					pos += sym->code.size();
-					goto next_symbol; // continue two levels
+				if (sym->regex) {
+					Regex::Results results;
+					if (!sym->code_regex.empty() && sym->code_regex.matches(results,text.begin() + pos, text.end())
+							&& results.position() == 0 && results.length() > 0) { //Matches the regex
+						pos += results.length();
+						goto next_symbol;
+					}
+				} else {
+					if (is_substr(text, pos, sym->code)) {
+						pos += sym->code.size();
+						goto next_symbol; // continue two levels
+					}
 				}
 			}
 		}
@@ -256,7 +264,7 @@ next_symbol:;
 
 SymbolInFont* SymbolFont::defaultSymbol() const {
 	FOR_EACH_CONST(sym, symbols) {
-		if (sym->regex && sym->code_regex.Matches(_("0")) && sym->enabled) return sym.get();
+		if (sym->enabled && sym->regex && sym->code_regex.matches(_("0"))) return sym.get();
 	}
 	return nullptr;
 }
diff --git a/src/render/text/element.cpp b/src/render/text/element.cpp
index 3eb54c6c..ab5422cf 100644
--- a/src/render/text/element.cpp
+++ b/src/render/text/element.cpp
@@ -100,6 +100,7 @@ struct TextElementsFromString {
 					// text element before this tag?
 					addText(te, text, text_start, pos, style, ctx);
 				}
+				// a (formatting) tag
 				size_t tag_start = pos;
 				pos = skip_tag(text, tag_start);
 				if      (is_substr(text, tag_start, _( "<b")))          bold        += 1;
@@ -177,18 +178,21 @@ struct TextElementsFromString {
 				} else {
 					// ignore other tags
 				}
+				// text starts again after the tag
 				text_start = pos;
 			} else {
+				// normal text
 				pos += 1;
 			}
 		}
 		if (text_start < end) {
+			// remaining text at the end
 			addText(te, text, text_start, end, style, ctx);
 		}
 	}
 	
   private:
-	/// Create a text element for a piece of text
+	/// Create a text element for a piece of text, text[start..end)
 	void addText(TextElements& te, const String& text, size_t start, size_t end, const TextStyle& style, Context& ctx) {
 		String content = untag(text.substr(start, end - start));
 		assert(content.size() == end-start);