author | wenzelm |
Tue, 21 Jun 2011 15:43:27 +0200 | |
changeset 43491 | 7b7baa283434 |
parent 43489 | 132f99cc0a43 |
child 43502 | 736183a22fa4 |
permissions | -rw-r--r-- |
43414 | 1 |
/* Title: Tools/jEdit/src/token_markup.scala |
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Author: Makarius |
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Outer syntax token markup. |
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*/ |
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package isabelle.jedit |
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import isabelle._ |
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import java.awt.{Font, Color} |
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import java.awt.font.{TextAttribute, TransformAttribute} |
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import java.awt.geom.AffineTransform |
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import org.gjt.sp.util.SyntaxUtilities |
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import org.gjt.sp.jedit.Mode |
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import org.gjt.sp.jedit.syntax.{Token => JEditToken, TokenMarker, TokenHandler, |
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ParserRuleSet, ModeProvider, XModeHandler, SyntaxStyle} |
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import javax.swing.text.Segment |
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object Token_Markup |
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{ |
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/* extended syntax styles */ |
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private val plain_range: Int = JEditToken.ID_COUNT |
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private val full_range = 6 * plain_range + 1 |
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private def check_range(i: Int) { require(0 <= i && i < plain_range) } |
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def subscript(i: Byte): Byte = { check_range(i); (i + plain_range).toByte } |
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def superscript(i: Byte): Byte = { check_range(i); (i + 2 * plain_range).toByte } |
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def bold(i: Byte): Byte = { check_range(i); (i + 3 * plain_range).toByte } |
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def user_font(idx: Int, i: Byte): Byte = { check_range(i); (i + (4 + idx) * plain_range).toByte } |
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val hidden: Byte = (6 * plain_range).toByte |
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private def font_style(style: SyntaxStyle, f: Font => Font): SyntaxStyle = |
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new SyntaxStyle(style.getForegroundColor, style.getBackgroundColor, f(style.getFont)) |
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private def script_style(style: SyntaxStyle, i: Int): SyntaxStyle = |
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{ |
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import scala.collection.JavaConversions._ |
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font_style(style, font => |
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style.getFont.deriveFont(Map(TextAttribute.SUPERSCRIPT -> new java.lang.Integer(i)))) |
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} |
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parents:
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private def bold_style(style: SyntaxStyle): SyntaxStyle = |
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font_style(style, _.deriveFont(Font.BOLD)) |
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private def hidden_font(font: Font): Font = |
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{ |
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import scala.collection.JavaConversions._ |
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val base_font = new Font(font.getFamily, 0, 1) |
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val transform = |
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new TransformAttribute(AffineTransform.getScaleInstance(1.0, font.getSize.toDouble)) |
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base_font.deriveFont(Map(TextAttribute.TRANSFORM -> transform)) |
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} |
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class Style_Extender(symbols: Symbol.Interpretation) extends SyntaxUtilities.StyleExtender |
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{ |
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if (symbols.font_names.length > 2) |
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error("Too many user symbol fonts (max 2 permitted): " + symbols.font_names.mkString(", ")) |
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parents:
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override def extendStyles(styles: Array[SyntaxStyle]): Array[SyntaxStyle] = |
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{ |
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val new_styles = new Array[SyntaxStyle](full_range) |
ebb90ff55b79
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for (i <- 0 until plain_range) { |
ebb90ff55b79
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wenzelm
parents:
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changeset
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val style = styles(i) |
ebb90ff55b79
added SyntaxUtilities.StyleExtender hook, with actual functionality in Isabelle/Scala;
wenzelm
parents:
43464
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changeset
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new_styles(i) = style |
ebb90ff55b79
added SyntaxUtilities.StyleExtender hook, with actual functionality in Isabelle/Scala;
wenzelm
parents:
43464
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changeset
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new_styles(subscript(i.toByte)) = script_style(style, -1) |
ebb90ff55b79
added SyntaxUtilities.StyleExtender hook, with actual functionality in Isabelle/Scala;
wenzelm
parents:
43464
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changeset
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new_styles(superscript(i.toByte)) = script_style(style, 1) |
ebb90ff55b79
added SyntaxUtilities.StyleExtender hook, with actual functionality in Isabelle/Scala;
wenzelm
parents:
43464
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changeset
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new_styles(bold(i.toByte)) = bold_style(style) |
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for ((family, idx) <- symbols.font_index) { |
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// FIXME adjust size |
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new_styles(user_font(idx, i.toByte)) = |
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font_style(style, font => new Font(family, font.getStyle, font.getSize)) |
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} |
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} |
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new_styles(hidden) = new SyntaxStyle(Color.white, null, hidden_font(styles(0).getFont)) |
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new_styles |
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} |
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} |
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def extended_styles(symbols: Symbol.Interpretation, text: CharSequence) |
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: Map[Text.Offset, Byte => Byte] = |
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{ |
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// FIXME \\<^bsub> \\<^esub> \\<^bsup> \\<^esup> |
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def ctrl_style(sym: String): Option[Byte => Byte] = |
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if (symbols.is_subscript_decoded(sym)) Some(subscript(_)) |
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else if (symbols.is_superscript_decoded(sym)) Some(superscript(_)) |
ebb90ff55b79
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else if (symbols.is_bold_decoded(sym)) Some(bold(_)) |
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else None |
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var result = Map[Text.Offset, Byte => Byte]() |
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def mark(start: Text.Offset, stop: Text.Offset, style: Byte => Byte) |
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{ |
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for (i <- start until stop) result += (i -> style) |
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} |
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var offset = 0 |
ebb90ff55b79
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var ctrl = "" |
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for (sym <- Symbol.iterator_string(text)) { |
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if (ctrl_style(sym).isDefined) ctrl = sym |
ebb90ff55b79
added SyntaxUtilities.StyleExtender hook, with actual functionality in Isabelle/Scala;
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changeset
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else if (ctrl != "") { |
43487 | 105 |
if (symbols.is_controllable(sym) && sym != "\"" && !symbols.fonts.isDefinedAt(sym)) { |
43482
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mark(offset - ctrl.length, offset, _ => hidden) |
ebb90ff55b79
added SyntaxUtilities.StyleExtender hook, with actual functionality in Isabelle/Scala;
wenzelm
parents:
43464
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changeset
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mark(offset, offset + sym.length, ctrl_style(ctrl).get) |
ebb90ff55b79
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wenzelm
parents:
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} |
ebb90ff55b79
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wenzelm
parents:
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ctrl = "" |
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} |
43488 | 111 |
symbols.lookup_font(sym) match { |
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case Some(idx) => mark(offset, offset + sym.length, user_font(idx, _)) |
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case _ => |
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} |
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offset += sym.length |
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} |
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result |
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} |
5d9693c2337e
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43440
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43414 | 120 |
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/* token marker */ |
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private val isabelle_rules = new ParserRuleSet("isabelle", "MAIN") |
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private class Line_Context(val context: Scan.Context) |
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extends TokenMarker.LineContext(isabelle_rules, null) |
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43414 | 127 |
{ |
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override def hashCode: Int = context.hashCode |
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override def equals(that: Any): Boolean = |
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that match { |
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case other: Line_Context => context == other.context |
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case _ => false |
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} |
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} |
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class Marker extends TokenMarker |
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{ |
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override def markTokens(context: TokenMarker.LineContext, |
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handler: TokenHandler, line: Segment): TokenMarker.LineContext = |
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{ |
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141 |
val symbols = Isabelle.system.symbols |
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val syntax = Isabelle.session.current_syntax() |
43414 | 143 |
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val ctxt = |
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context match { |
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146 |
case c: Line_Context => c.context |
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case _ => Scan.Finished |
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} |
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val (tokens, ctxt1) = syntax.scan_context(line, ctxt) |
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val context1 = new Line_Context(ctxt1) |
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val extended = extended_styles(symbols, line) |
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154 |
var offset = 0 |
5cf548485529
avoid setTokenMarker fluctuation on buffer reload etc. via static isabelle_token_marker, which is installed by hijacking the jEdit ModeProvider;
wenzelm
parents:
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changeset
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155 |
for (token <- tokens) { |
5cf548485529
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wenzelm
parents:
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changeset
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156 |
val style = Isabelle_Markup.token_markup(syntax, token) |
5cf548485529
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parents:
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157 |
val length = token.source.length |
5cf548485529
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158 |
val end_offset = offset + length |
5cf548485529
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159 |
if ((offset until end_offset) exists extended.isDefinedAt) { |
5cf548485529
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for (i <- offset until end_offset) { |
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val style1 = |
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extended.get(i) match { |
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case None => style |
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case Some(ext) => ext(style) |
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} |
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handler.handleToken(line, style1, i, 1, context1) |
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} |
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} |
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else handler.handleToken(line, style, offset, length, context1) |
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offset += length |
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} |
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handler.handleToken(line, JEditToken.END, line.count, 0, context1) |
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|
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val context2 = context1.intern |
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handler.setLineContext(context2) |
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context2 |
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} |
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} |
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|
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/* mode provider */ |
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|
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class Mode_Provider(orig_provider: ModeProvider) extends ModeProvider |
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{ |
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for (mode <- orig_provider.getModes) addMode(mode) |
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|
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val isabelle_token_marker = new Token_Markup.Marker |
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|
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override def loadMode(mode: Mode, xmh: XModeHandler) |
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{ |
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super.loadMode(mode, xmh) |
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if (mode.getName == "isabelle") |
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mode.setTokenMarker(isabelle_token_marker) |
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} |
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} |
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} |
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