Added <prefix> and <suffix> tags;

Added prefix and suffix support to combined_editor;
'always symbol' now checks if the symbols are available in the symbol font;
Fixed parser bug in spec_sort;
A first information field is no longer used as set identification

doc/function/combined_editor.txt

@@ -13,15 +13,17 @@ When the field changes the underlying values are updated and vice versa.
 Note: @forward_editor@ and @combined_editor@ are the same function.
 
 --Parameters--
-! Parameter	Type			Description
+! Parameter	Type				Default	Description
 | @field@	[[type:value#text|text value]]	 	Text value to edit
 | @field1@	[[type:value#text|text value]]	 	Another text value to edit
 | @field2@	[[type:value#text|text value]]	 	''etc.''
 | @separator@	[[type:string]]			 	Separator between field 1 and 2
 | @separator1@	[[type:string]]			 	Multiple separators
 | @separator2@	[[type:string]]			 	Next separator, ''etc.''
-| @hide when empty@	[[type:boolean]]		Don't include separators if the entire value is empty.
-| @soft before empty@	[[type:boolean]]		Make separators 'soft' when the value folowing it is empty.
+| @prefix@	[[type:string]]		''optional''	Prefix before the combined editor; like a separtor between the start and the first field.
+| @suffix@	[[type:string]]		''optional''	Suffix after the combined editor; like a separtor between the last field and the end.
+| @hide when empty@	[[type:boolean]]	@false@	Don't include separators if the entire value is empty.
+| @soft before empty@	[[type:boolean]]	@false@	Make separators 'soft' when the value folowing it is empty.
 			 			 	Soft separators are hidden by default and shown grayed when the field is selected.
 
 --Examples--

doc/type/style.txt

@@ -55,7 +55,8 @@ The rest of the properties depend on the type of [[type:field]] this style is fo
 ! Type		Property		Type			Default		Description
 | @"text"@	@font@			[[type:font]]		''Required'' 	Font to render the text.
 | ^^^		@symbol font@		[[type:symbol font]]	 		Font to render symbols in the text (optional).
-| ^^^		@always symbol@		[[type:boolean]]	@false@		Should all text be rendered with symbols?<br/>If set, @font@ is not needed.
+| ^^^		@always symbol@		[[type:boolean]]	@false@		Should all text be rendered with symbols?<br/>
+		 			 			 		Text that is not supported by the symbol font is still rendered as normal text.
 | ^^^		@allow formating@	[[type:boolean]]	@true@		Is custom formating (bold, italic) allowed?
 | ^^^		@alignment@		[[type:scriptable]] [[type:alignment]]	@top left@	Alignment of the text.
 | ^^^		@angle@			[[type:scriptable]] [[type:int]]	@0@		Rotation of the text inside the box, in degrees.
@@ -72,6 +73,9 @@ The rest of the properties depend on the type of [[type:field]] this style is fo
 		 			 			 		A line height of @0@ means all lines are in the same position, @1@ is normal behaviour, @2@ skips a line, etc.
 | ^^^		@line height hard@	[[type:double]]		@1@		Multiplier for the line height of 'hard' line breaks. These are breaks caused by the enter key.
 | ^^^		@line height line@	[[type:double]]		@1@		Multiplier for the line height of 'soft' line breaks. These are breaks caused by @"<line>\n</line>"@ tags.
+| ^^^		@line height soft max@	^^^			''disabled''	When there is still vertical room in the text box, increase the line heights to at most these values to spread the text more evenly.
+| ^^^		@line height hard max@	^^^			^^^		^^^
+| ^^^		@line height line max@	^^^			^^^		^^^
 | ^^^		@mask@			[[type:filename]]	''none''	A mask that indicates where in the box text can be placed.<br/>
 		 			 			 		Text is never put in black areas of the box:<br/>
 		 			 			 		<img src="style-text-mask.png" alt=""/>

doc/type/tagged_string.txt

@@ -36,6 +36,8 @@ This is written as the character with code 1 in files.
 | @"<sep>"@		A separator between fields. This tag is automatically inserted by the [[fun:combined_editor]] function.<br/>
 			Inserting this tag manually will confuse that function!<br/>
 			This tag can never be selected, and its contents can not be edited.
+| @"<prefix>"@		At the beginning of a string, indicates a part that can not be selected. This tag is automatically inserted by the [[fun:combined_editor]] function.
+| @"<suffix>"@		At the end of a string, indicates a part that can not be selected. This tag is automatically inserted by the [[fun:combined_editor]] function.
 | @"<sep-soft>"@	Like @"<sep>"@, only hidden. This is inserted by [[fun:combined_editor]]
 | @"<soft>"@		Text who's width is ignored for alignment, similair to @"<sep-soft>"@, but not a separator.
 | @"<word-list-?>"@	Indicate that the text inside the tag should be selected from a [[type:word list]].

src/data/set.cpp

@@ -13,6 +13,7 @@
 #include <data/keyword.hpp>
 #include <data/field.hpp>
 #include <data/field/text.hpp>    // for 0.2.7 fix
+#include <data/field/information.hpp>
 #include <util/tagged_string.hpp> // for 0.2.7 fix
 #include <util/order_cache.hpp>
 #include <script/script_manager.hpp>
@@ -106,12 +107,13 @@ String Set::identification() const {
 			return v->toString();
 		}
 	}
-	// otherwise the first field
-	if (!data.empty()) {
-		return data.at(0)->toString();
-	} else {
-		return wxEmptyString;
+	// otherwise the first non-information field
+	FOR_EACH_CONST(v, data) {
+		if (!dynamic_pointer_cast<InfoValue>(v)) {
+			return v->toString();
+		}
 	}
+	return wxEmptyString;
 }
 
 

src/data/symbol_font.cpp

@@ -215,6 +215,46 @@ next_symbol:;
 	}
 }
 
+size_t SymbolFont::recognizePrefix(const String& text, size_t start) const {
+	size_t pos;
+	for (pos = start ; pos < text.size() ; ) {
+		// 1. check merged numbers
+		if (merge_numbers && pos + 1 < text.size()) {
+			size_t num_count = text.find_first_not_of(_("0123456789"), pos) - pos;
+			if (num_count >= 2) {
+				pos += num_count;
+				goto next_symbol;
+			}
+		}
+		// 2. check symbol list
+		FOR_EACH_CONST(sym, symbols) {
+			if (!sym->code.empty() && sym->enabled && is_substr(text, pos, sym->code)) { // symbol matches
+				pos += sym->code.size();
+				goto next_symbol; // continue two levels
+			}
+		}
+		// 3. draw multiple together as text?
+		if (!as_text.empty()) {
+			if (!as_text_r.IsValid()) {
+				as_text_r.Compile(_("^") + as_text, wxRE_ADVANCED);
+			}
+			if (as_text_r.IsValid()) {
+				if (as_text_r.Matches(text.substr(pos))) {
+					size_t start, len;
+					if (as_text_r.GetMatch(&start,&len) && start == 0) {
+						pos += len;
+						goto next_symbol;
+					}
+				}
+			}
+		}
+		// 4. failed
+		break;
+next_symbol:;
+	}
+	return pos - start;
+}
+
 SymbolInFont* SymbolFont::defaultSymbol() const {
 	FOR_EACH_CONST(sym, symbols) {
 		if (sym->code.empty() && sym->enabled) return sym.get();

src/data/symbol_font.hpp

@@ -51,6 +51,9 @@ class SymbolFont : public Packaged {
 	/// Split a string into separate symbols for drawing and for determining their size
 	void split(const String& text, SplitSymbols& out) const;
 	
+	/// How many consecutive characters of the text, starting at start can be rendered with this symbol font?
+	size_t recognizePrefix(const String& text, size_t start) const;
+	
 	/// Draw a piece of text
 	void draw(RotatedDC& dc, Context& ctx, const RealRect& rect, double font_size, const Alignment& align, const String& text);
 	/// Get information on characters in a string

src/gui/value/text.cpp

@@ -956,6 +956,7 @@ void TextValueEditor::replaceSelection(const String& replacement, const String&
 void TextValueEditor::tryAutoReplace() {
 	size_t end = selection_start_i;
 	GameSettings& gs = settings.gameSettingsFor(*getSet().game);
+	if (!gs.use_auto_replace) return;
 	FOR_EACH(ar, gs.auto_replaces) {
 		if (ar->enabled && ar->match.size() <= end) {
 			size_t start = end - ar->match.size();

src/render/text/element.cpp

@@ -75,6 +75,7 @@ struct TextElementsFromString {
 	int soft, kwpph, param, line, soft_line;
 	int code, code_kw, code_string, param_ref, error;
 	int param_id;
+	/// put angle brackets around the text?
 	bool bracket;
 	
 	TextElementsFromString()
@@ -86,10 +87,15 @@ struct TextElementsFromString {
 	void fromString(TextElements& te, const String& text, size_t start, size_t end, const TextStyle& style, Context& ctx) {
 		te.elements.clear();
 		end = min(end, text.size());
+		size_t text_start = start;
 		// for each character...
 		for (size_t pos = start ; pos < end ; ) {
 			Char c = text.GetChar(pos);
 			if (c == _('<')) {
+				if (text_start < pos) {
+					// text element before this tag?
+					addText(te, text, text_start, pos, style, ctx);
+				}
 				size_t tag_start = pos;
 				pos = skip_tag(text, tag_start);
 				if      (is_substr(text, tag_start, _( "<b")))          bold        += 1;
@@ -132,39 +138,80 @@ struct TextElementsFromString {
 				else if (is_substr(text, tag_start, _("<atom"))) {
 					// 'atomic' indicator
 					size_t end_tag = min(end, match_close_tag(text, tag_start));
-					intrusive_ptr<AtomTextElement> e(new AtomTextElement(text, pos, end_tag));
+					intrusive_ptr<AtomTextElement> e(new AtomTextElement(pos, end_tag));
 					fromString(e->elements, text, pos, end_tag, style, ctx);
 					te.elements.push_back(e);
 					pos = skip_tag(text, end_tag);
 				} else if (is_substr(text, tag_start, _( "<error"))) {
 					// error indicator
 					size_t end_tag = min(end, match_close_tag(text, tag_start));
-					intrusive_ptr<ErrorTextElement> e(new ErrorTextElement(text, pos, end_tag));
+					intrusive_ptr<ErrorTextElement> e(new ErrorTextElement(pos, end_tag));
 					fromString(e->elements, text, pos, end_tag, style, ctx);
 					te.elements.push_back(e);
 					pos = skip_tag(text, end_tag);
 				} else {
 					// ignore other tags
 				}
+				text_start = pos;
 			} else {
-				c = untag_char(c); // unescape
-				// A character of normal text, add to the last text element (if possible)
-				SimpleTextElement* e = nullptr;
-				if (!te.elements.empty()) e = dynamic_cast<SimpleTextElement*>(te.elements.back().get());
-				if (e && e->end == (bracket ? pos + 1 : pos)) {
-					e->end = bracket ? pos + 2 : pos + 1; // just move the end, no need to make a new element
-					e->content += c;
-					if (bracket) {
-						// content is "<somethin>g" should be "<something>"
-						swap(e->content[e->content.size() - 2], e->content[e->content.size() - 1]);
+				pos += 1;
 			}
-				} else {
-					// add a new element for this text
+		}
+		if (text_start < end) {
+			addText(te, text, text_start, end, style, ctx);
+		}
+	}
+	
+  private:
+	/// Create a text element for a piece of text
+	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);
+		// use symbol font?
 		if (symbol > 0 && style.symbol_font.valid()) {
-						e = new SymbolTextElement(text, pos, pos + 1, style.symbol_font, &ctx);
-						bracket = false;
+			te.elements.push_back(new_intrusive5<SymbolTextElement>(content, start, end, style.symbol_font, &ctx));
+		} else {
+			// text, possibly mixed with symbols
+			DrawWhat what = soft > 0 ? DRAW_ACTIVE : DRAW_NORMAL;
+			LineBreak line_break = line > 0 ? BREAK_LINE :
+			                       soft_line > 0 ? BREAK_SOFT : BREAK_HARD;
+			if (kwpph > 0 || param > 0) {
+				// bracket the text
+				content = String(LEFT_ANGLE_BRACKET) + content + RIGHT_ANGLE_BRACKET;
+				start -= 1;
+				end   += 1;
+			}
+			if (style.always_symbol && style.symbol_font.valid()) {
+				// mixed symbols/text, autodetected by symbol font
+				size_t text_pos = 0;
+				size_t pos = 0;
+				FontP font;
+				while (pos < end-start) {
+					if (size_t n = style.symbol_font.font->recognizePrefix(content,pos)) {
+						// at 'pos' there are n symbol font characters
+						if (text_pos < pos) {
+							// text before it?
+							if (!font) font = makeFont(style);
+							te.elements.push_back(new_intrusive6<FontTextElement>(content.substr(text_pos, pos-text_pos), start+text_pos, start+pos, font, what, line_break));
+						}
+						te.elements.push_back(new_intrusive5<SymbolTextElement>(content.substr(pos,n), start+pos, start+pos+n, style.symbol_font, &ctx));
+						text_pos = pos += n;
+					} else {
+						++pos;
+					}
+				}
+				if (text_pos < pos) {
+					if (!font) font = makeFont(style);
+					te.elements.push_back(new_intrusive6<FontTextElement>(content.substr(text_pos), start+text_pos, end, font, what, line_break));
+				}
 			} else {
-						FontP font = style.font.make(
+				te.elements.push_back(new_intrusive6<FontTextElement>(content, start, end, makeFont(style), what, line_break));
+			}
+		}
+	}
+	
+	FontP makeFont(const TextStyle& style) {
+		return style.font.make(
 			(bold        > 0 ? FONT_BOLD        : FONT_NORMAL) |
 			(italic      > 0 ? FONT_ITALIC      : FONT_NORMAL) |
 			(soft        > 0 ? FONT_SOFT        : FONT_NORMAL) |
@@ -175,26 +222,6 @@ struct TextElementsFromString {
 			param > 0 || param_ref > 0
 				? &param_colors[(param_id++) % param_colors_count]
 				: nullptr);
-						bracket = kwpph > 0 || param > 0;
-						e = new FontTextElement(
-									text,
-									bracket ? pos - 1 : pos,
-									bracket ? pos + 2 : pos + 1,
-									font,
-									soft > 0 ? DRAW_ACTIVE : DRAW_NORMAL,
-									line > 0 ? BREAK_LINE :
-									soft_line > 0 ? BREAK_SOFT : BREAK_HARD);
-					}
-					if (bracket) {
-						e->content = String(LEFT_ANGLE_BRACKET) + c + RIGHT_ANGLE_BRACKET;
-					} else {
-						e->content = c;
-					}
-					te.elements.push_back(TextElementP(e));
-				}
-				pos += 1;
-			}
-		}
 	}
 };
 

src/render/text/element.hpp

@@ -57,12 +57,10 @@ struct CharInfo {
 /// A section of text that can be rendered using a TextViewer
 class TextElement : public IntrusivePtrBase<TextElement> {
   public:
-	/// The text of which a subsection is drawn
-	String text;
 	/// What section of the input string is this element?
 	size_t start, end;
 	
-	inline TextElement(const String& text, size_t start ,size_t end) : text(text), start(start), end(end) {}
+	inline TextElement(size_t start ,size_t end) : start(start), end(end) {}
 	virtual ~TextElement() {}
 	
 	/// Draw a subsection section of the text in the given rectangle
@@ -109,8 +107,8 @@ class TextElements {
 /// A text element that just shows text
 class SimpleTextElement : public TextElement {
   public:
-	SimpleTextElement(const String& text, size_t start, size_t end)
-		: TextElement(text, start, end), content(text.substr(start,end-start))
+	SimpleTextElement(const String& content, size_t start, size_t end)
+		: TextElement(start, end), content(content)
 	{}
 	String content;	///< Text to show
 };
@@ -118,8 +116,8 @@ class SimpleTextElement : public TextElement {
 /// A text element that uses a normal font
 class FontTextElement : public SimpleTextElement {
   public:
-	FontTextElement(const String& text, size_t start, size_t end, const FontP& font, DrawWhat draw_as, LineBreak break_style)
-		: SimpleTextElement(text, start, end)
+	FontTextElement(const String& content, size_t start, size_t end, const FontP& font, DrawWhat draw_as, LineBreak break_style)
+		: SimpleTextElement(content, start, end)
 		, font(font), draw_as(draw_as), break_style(break_style)
 	{}
 	
@@ -136,8 +134,8 @@ class FontTextElement : public SimpleTextElement {
 /// A text element that uses a symbol font
 class SymbolTextElement : public SimpleTextElement {
   public:
-	SymbolTextElement(const String& text, size_t start, size_t end, const SymbolFontRef& font, Context* ctx)
-		: SimpleTextElement(text, start, end)
+	SymbolTextElement(const String& content, size_t start, size_t end, const SymbolFontRef& font, Context* ctx)
+		: SimpleTextElement(content, start, end)
 		, font(font), ctx(*ctx)
 	{}
 	
@@ -155,7 +153,7 @@ class SymbolTextElement : public SimpleTextElement {
 /// A TextElement consisting of sub elements
 class CompoundTextElement : public TextElement {
   public:
-	CompoundTextElement(const String& text, size_t start, size_t end) : TextElement(text, start, end) {}
+	CompoundTextElement(size_t start, size_t end) : TextElement(start, end) {}
 	
 	virtual void draw       (RotatedDC& dc, double scale, const RealRect& rect, const double* xs, DrawWhat what, size_t start, size_t end) const;
 	virtual void getCharInfo(RotatedDC& dc, double scale, vector<CharInfo>& out) const;
@@ -168,7 +166,7 @@ class CompoundTextElement : public TextElement {
 /// A TextElement drawn using a grey background
 class AtomTextElement : public CompoundTextElement {
   public:
-	AtomTextElement(const String& text, size_t start, size_t end) : CompoundTextElement(text, start, end) {}
+	AtomTextElement(size_t start, size_t end) : CompoundTextElement(start, end) {}
 	
 	virtual void draw(RotatedDC& dc, double scale, const RealRect& rect, const double* xs, DrawWhat what, size_t start, size_t end) const;
 };
@@ -176,23 +174,10 @@ class AtomTextElement : public CompoundTextElement {
 /// A TextElement drawn using a red wavy underline
 class ErrorTextElement : public CompoundTextElement {
   public:
-	ErrorTextElement(const String& text, size_t start, size_t end) : CompoundTextElement(text, start, end) {}
+	ErrorTextElement(size_t start, size_t end) : CompoundTextElement(start, end) {}
 	
 	virtual void draw(RotatedDC& dc, double scale, const RealRect& rect, const double* xs, DrawWhat what, size_t start, size_t end) const;
 };
 
-// ----------------------------------------------------------------------------- : Other text elements
-/*
-/// A text element that displays a horizontal separator line
-class HorizontalLineTextElement : public TextElement {
-  public:
-	HorizontalLineTextElement(const String& text, size_t start ,size_t end) : TextElement(text, start, end) {}
-
-	virtual void draw       (RotatedDC& dc, double scale, const RealRect& rect, const double* xs, DrawWhat what, size_t start, size_t end) const;
-	virtual void getCharInfo(RotatedDC& dc, double scale, vector<CharInfo>& out) const;
-	virtual double minScale() const;
-};
-*/
-
 // ----------------------------------------------------------------------------- : EOF
 #endif

src/render/text/viewer.cpp

@@ -328,12 +328,7 @@ void TextViewer::setExactScrollPosition(double pos) {
 // ----------------------------------------------------------------------------- : Elements
 
 void TextViewer::prepareElements(const String& text, const TextStyle& style, Context& ctx) {
-	if (style.always_symbol) {
-		elements.elements.clear();
-		elements.elements.push_back(new_intrusive5<SymbolTextElement>(text, 0, text.size(), style.symbol_font, &ctx));
-	} else {
 	elements.fromString(text, 0, text.size(), style, ctx);
-	}
 }
 
 

src/script/functions/editor.cpp

@@ -52,10 +52,21 @@ SCRIPT_FUNCTION_WITH_DEP(combined_editor) {
 	if (separators.size() < values.size() - 1) {
 		throw ScriptError(String::Format(_("Not enough separators for combine_editor, expected %d"), values.size()-1));
 	}
-	// split the value
+	// the value
 	SCRIPT_PARAM(String, value);
+	// remove suffix/prefix
+	SCRIPT_OPTIONAL_PARAM_(String, prefix);
+	SCRIPT_OPTIONAL_PARAM_(String, suffix);
+	if (is_substr(value,0,_("<prefix"))) {
+		value = value.substr(min(value.size(), match_close_tag_end(value, 0)));
+	}
+	size_t pos = value.rfind(_("<suffix"));
+	if (pos != String::npos && match_close_tag_end(value,pos) >= value.size()) {
+		value = value.substr(0, pos);
+	}
+	// split the value
 	vector<pair<String,bool> > value_parts; // (value part, is empty)
-	size_t pos = value.find(_("<sep"));
+	pos = value.find(_("<sep"));
 	while (pos != String::npos) {
 		String part = value.substr(0, pos);
 		value_parts.push_back(make_pair(part, false));
@@ -81,18 +92,48 @@ SCRIPT_FUNCTION_WITH_DEP(combined_editor) {
 	// recombine the parts
 	String new_value = value_parts.front().first;
 	bool   new_value_empty = value_parts.front().second;
+	size_t size_before_last = 0;
 	for (size_t i = 1 ; i < value_parts.size() ; ++i) {
+		size_before_last = new_value.size();
 		if (value_parts[i].second && new_value_empty && hide_when_empty) {
 			// no separator
 		} else if (value_parts[i].second && soft_before_empty) {
 			// soft separator
 			new_value += _("<sep-soft>") + separators[i - 1] + _("</sep-soft>");
+			new_value_empty = false;
 		} else {
 			// normal separator
 			new_value += _("<sep>")      + separators[i - 1] + _("</sep>");
+			new_value_empty = false;
 		}
 		new_value += value_parts[i].first;
 	}
+	if (!new_value_empty || !hide_when_empty) {
+		if (!suffix.empty()) {
+			if (is_substr(new_value, size_before_last, _("<sep-soft>")) && value_parts.size() >= 2) {
+				// If the value ends in a soft separator, we have this situation:
+				//   [blah]<sep-soft>ABC</sep-soft><suffix>XYZ</suffix>
+				// This renderes as:
+				//   [blah]   XYZ
+				// Which looks bad, so instead change the text to
+				//   [blah]<sep>XYZ<soft>ABC</soft></sep>
+				// Which might be slightly incorrect, but soft text doesn't matter anyway.
+				size_t after = min(new_value.size(), match_close_tag_end(new_value, size_before_last));
+				new_value = new_value.substr(0, size_before_last)
+				          + _("<sep>")
+				          + suffix
+				          + _("<soft>")
+				          + separators[value_parts.size() - 2]
+				          + _("</soft></sep>")
+				          + new_value.substr(after);
+			} else {
+				new_value += _("<suffix>") + suffix + _("</suffix>");
+			}
+		}
+		if (!prefix.empty()) {
+			new_value = _("<prefix>") + prefix + _("</prefix>") + new_value;
+		}
+	}
 	SCRIPT_RETURN(new_value);
 }
 

src/util/spec_sort.cpp

@@ -239,7 +239,14 @@ void in_place_sort(const String& spec, String& input, String& ret) {
 String spec_sort(const String& spec, String& input, String& ret) {
 	SpecIterator it(spec);
 	while(it.nextUntil(0)) {
-		if (it.value == _('<')) {		// keep only a single copy
+		if (it.escaped) {					// single character, escaped
+			FOR_EACH(d, input) {
+				if (d == it.value) {
+					ret += d;
+					d = REMOVED;
+				}
+			}
+		} else if (it.value == _('<')) {		// keep only a single copy
 			while (it.nextUntil(_('>'))) {
 				size_t pos = input.find_first_of(it.value);
 				if (pos != String::npos) {

src/util/tagged_string.cpp

@@ -249,6 +249,13 @@ size_t index_to_cursor(const String& str, size_t index, Movement dir) {
 					}
 				}
 				i = after;
+			} else if (i == 0 && is_substr(str, i, _("<prefix"))) {
+				// prefix at start of string, skip contents
+				i = match_close_tag_end(str, i);
+				has_width = false;
+			} else if (is_substr(str, i, _("<suffix")) && match_close_tag_end(str,i) >= str.size()) {
+				// suffix at end of string
+				break;
 			} else {
 				i = skip_tag(str, i);
 				has_width = false;
@@ -268,7 +275,8 @@ void cursor_to_index_range(const String& str, size_t cursor, size_t& start, size
 	start = end = 0;
 	size_t cur = 0;
 	size_t i = 0;
-	while (cur <= cursor && i < str.size()) {
+	size_t size = str.size(); // can be changed by <suffix> tags
+	while (cur <= cursor && i < size) {
 		Char c = str.GetChar(i);
 		bool has_width = true;
 		if (c == _('<')) {
@@ -278,6 +286,14 @@ void cursor_to_index_range(const String& str, size_t cursor, size_t& start, size
 				if (cur >= cursor) { ++i; break; }
 				// skip tag contents, tag counts as a single 'character'
 				i = match_close_tag_end(str, i);
+			} else if (i == 0 && is_substr(str, i, _("<prefix"))) {
+				// prefix at start of string, skip contents, index never before
+				start = i = match_close_tag_end(str,i);
+				has_width = false;
+			} else if (is_substr(str, i, _("<suffix")) && match_close_tag_end(str,i) >= str.size()) {
+				// suffix at start of string, skip contents
+				size = i;
+				has_width = false;
 			} else {
 				i = skip_tag(str, i);
 				has_width = false;
@@ -290,8 +306,8 @@ void cursor_to_index_range(const String& str, size_t cursor, size_t& start, size
 			if (cur == cursor) start = i;
 		}
 	}
-	end = min(i, str.size());
-	if (cur < cursor) start = end = str.size();
+	end = min(i, size);
+	if (cur < cursor) start = end = size;
 	if (end <= start) end = start + 1;
 }
 
@@ -336,6 +352,12 @@ String untag_for_cursor(const String& str) {
 			} else if (is_substr(str, i, _("<sep"))) {
 				i = match_close_tag_end(str, i);
 				ret += _('\3'); // use a random character here
+			} else if (i == 0 && is_substr(str, i, _("<prefix"))) {
+				// prefix at start of string, skip contents, index never before
+				i = match_close_tag_end(str,i);
+			} else if (is_substr(str, i, _("<suffix")) && match_close_tag_end(str,i) >= str.size()) {
+				// suffix at start of string, skip contents
+				i = str.size();
 			} else {
 				i = skip_tag(str, i);
 			}