1 files changed, 44 insertions, 0 deletions
diff --git a/context/data/textadept/context/lexers/scite-context-lexer-pdf-xref.lua b/context/data/textadept/context/lexers/scite-context-lexer-pdf-xref.lua
new file mode 100644
index 000000000..f08d16488
--- /dev/null
+++ b/context/data/textadept/context/lexers/scite-context-lexer-pdf-xref.lua
@@ -0,0 +1,44 @@
+local info = {
+    version   = 1.002,
+    comment   = "scintilla lpeg lexer for pdf xref",
+    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+    copyright = "PRAGMA ADE / ConTeXt Development Team",
+    license   = "see context related readme files",
+}
+
+-- no longer used: nesting lexers with whitespace in start/stop is unreliable
+
+local P, R = lpeg.P, lpeg.R
+
+-- local lexer          = require("lexer")
+local lexer          = require("scite-context-lexer")
+local context        = lexer.context
+local patterns       = context.patterns
+
+local token          = lexer.token
+
+local pdfxreflexer   = lexer.new("pdfxref","scite-context-lexer-pdf-xref")
+local whitespace     = pdfxreflexer.whitespace
+
+local spacing        = patterns.spacing
+local cardinal       = patterns.cardinal
+local alpha          = patterns.alpha
+
+local t_spacing      = token(whitespace, spacing)
+
+local p_xref         = P("xref")
+local t_xref         = token("keyword",p_xref)
+                     * token("number", cardinal * spacing * cardinal * spacing)
+
+local t_number       = token("number", cardinal * spacing * cardinal * spacing)
+                     * token("keyword", alpha)
+
+pdfxreflexer._rules = {
+    { "whitespace", t_spacing },
+    { "xref",       t_xref    },
+    { "number",     t_number  },
+}
+
+pdfxreflexer._tokenstyles = context.styleset
+
+return pdfxreflexer