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<?xml version="1.0" encoding="UTF-8"?>
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<!-- [Purpose & Copyright]
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Highlight ISO-Prolog texts or template/include for Prolog dialects
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based on the ISO standard.
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Includes detection of DCG since it is 'hooked' in the ISO standard.
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Uses text style "Warning/ISO-bogus" where portability is likely to
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fail.
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This file is part of TDE's kate project.
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copyright : (C) 2012 by Torsten Eichstädt
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**********************************************************************
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; if not, write to the *
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, *
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* Boston, MA 02110-1301, USA. *
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**********************************************************************
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-->
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<!DOCTYPE language SYSTEM "language.dtd"
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[<!-- [Regular Expressions, Character Classes & Important Tokens]
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E.g. the dot "." has so many different meanings (i.e. in an RegExpr 'any char',
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'fullstop' of a clause, etc. pp.) that I decided it's usefull to write these out
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to make the rules more expressive. -->
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<!-- RegExpr for graphic tokens. Comment start "/*" is catched earlier. -->
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<!ENTITY gr_char_iso "[#$&*+\-./:<=>?@^~\\]">
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<!-- RegExpr: The highlighting engine always strips newline, so this ok: -->
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<!ENTITY any_nw "[^ \t]">
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<!ENTITY any ".">
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<!-- RegExpr: we want to highlight some graphic tokens: Logic & Control
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fullstop shall not be falsely detected if it is actually a list functor
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comma is catched extra to highlight it as "Normal Text" in an arg_seq
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(and the cut "!" is NOT an op) -->
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<!ENTITY fullstop_iso "\.(?!(\(|&gr_char_iso;))">
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<!ENTITY logic_control_ops_iso "(;|->|\\\+|:-|=|\\=)(?!&gr_char_iso;)">
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<!-- RegExpr: DCG (not my idea it is not reversed and named 'reduction') -->
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<!ENTITY dcg_production_iso "-->(?!&gr_char_iso;)">
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<!-- RegExpr: partitioning of arithmetic operators:
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- the 1st "arith_compare" always demand arithmetic evaluation
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=> highlight as "Arithmetics".
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- the 2nd only at the right side of "is" or when an arith_compare applies.
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They are used in other contexts as well, e.g. traditionally A-B is used
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for 'a pair of something', the "^" in bagof/3 and setof/3.
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=> highlight as "Arithmetics" only in an arith_expr.
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- the 3rd are true ISO bogus: it is not specified whether it is arithmetic
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or logical shift, and for bitwise AND, OR and NEG the integer format is
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unspecified => not portable, depend on Prolog implementation. -->
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<!ENTITY arith_compare_iso "(=:=|=\\=|=<|<|>=|>)(?!&gr_char_iso;)">
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<!ENTITY arith_ops_mixed_iso "(\+|-|\*|\^)(?!&gr_char_iso;)">
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<!ENTITY arith_ops_int_iso "//(?!&gr_char_iso;)">
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<!ENTITY arith_ops_float_iso "(/|\*\*)(?!&gr_char_iso;)">
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<!ENTITY arith_bogus_iso "(/\\|\\/|\\|<<|>>)(?!&gr_char_iso;)">
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<!-- RegExpr: other predefined operators -->
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<!ENTITY predefined_ops_iso "(\?-|==|\\==|@=<|@<|@>=|@>|=\.\.|@|:)(?!&gr_char_iso;)">
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<!-- We treat a number as float if it includes a decimal dot or exponent -->
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<!ENTITY float3_iso "[0-9]+E[+\-]?[0-9]+">
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<!ENTITY float2_iso "[0-9]+\.[0-9]+">
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<!ENTITY float1_iso "[0-9]+\.[0-9]+E[+\-]?[0-9]+">
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<!-- RegExpr for esc'd char code in quoted 'strings' e.g. "\007\" -->
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<!ENTITY esc_oct_iso "\\[0-7]+\\">
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<!ENTITY esc_hex_iso "\\x[a-fA-F0-9]+\\">
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<!-- Char classes for AnyChar, NOT RegExpr: no esc seqs, ranges, etc. pp. here!
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Used to avoid expensive RegExpr whenever possible. -->
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<!-- Not needed: any_alnum_under_iso: use "DetectIdentifier" instead -->
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<!ENTITY any_lower_iso "abcdefghijklmnopqrstuvwxyz">
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<!ENTITY any_upper_under_iso "ABCDEFGHIJKLMNOPQRSTUVWXYZ_">
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<!ENTITY any_bin_iso "01">
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<!ENTITY any_oct_iso "01234567">
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<!ENTITY any_dec_iso "0123456789">
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<!ENTITY any_hex_iso "0123456789abcdefABCDEF">
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<!ENTITY any_graphic_iso "#$&*+-./:<=>?@^~\">
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<!-- Common esc seq in quoted & char code (after "0'").
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Tab is handled extra. Esc'd newline is catched earlier. -->
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<!ENTITY any_esc_iso "abfnrtv\'`"]">
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<!ENTITY dot ".">
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<!-- Some solo chars for DetectChar -->
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<!ENTITY comma ",">
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<!ENTITY cut "!">
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<!ENTITY bar "|">
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<!ENTITY tab " ">
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<!ENTITY bs "\">
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]>
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<language name="Prolog" section="Sources"
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version="1.3-1" kateversion="2.3"
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mimetype="text/x-prolog"
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extensions="*.prolog;*.dcg;*.pro"
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author="Torsten Eichstädt (torsten.eichstaedt@web.de)"
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license="LGPL">
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<!-- [Terminology & Abbreviations In The Comments]
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- Literal text is in double quotes "like this", single quotes sometimes used
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for a 'terminus technicus'.
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- "w/", "w/o", "s/t" mean 'with', 'without', and "sometimes" resp.
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- Use "brace" instead of 'bracket'/'parenthesis' for any of "()[]{}"
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- Specify "round", "list/squared", "curly", "opening" and "closing" brace.
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- "quote/quoted/string" mean any of single-, double-, or back-quote(d)
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- "seq" sequence, "nl" newline, "bs" backslash, "q" quote(d), "cc" char code
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- "KISS" Keep it simple, stupid! (be pragmatic)
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- "style" = "attribute" (the applied text style)
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- Keep comments as short as possible and as descriptive as neccessary LOL
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-->
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<!-- [Documentation, Bugs, Limitations & Solutions, TODOs]
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################################################################################
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All bugs except three by the author. !FOLD THIS AWAY if long comments annoy you.
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BUG - Nobody's perfect - If I knew about the bug you found, it would have been
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fixed already.
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one- Takes a "shebang" at the start of text on other than the 1st line (Kate).
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two- Indentation-based folding is not reliable.
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three- Folding is sometimes broken (Kate?). See SOLUTIONS below.
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4 - An optional leading sign is not highlighted as part of the number.
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5 - A float w/o fractional part and exponent is highlighted as an integer.
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6 - Detection of whitespace may not be 100% correct, only space/tab/newline.
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7 - Handling inside arithmetic expressions might not be 100%. See "AL GUSTO".
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inf- see TODOs below.
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LIMITS of this parser
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- Highlighting of syntax errors is as intuitive as possible, i.e. for an
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invalid newline highlight the last token before and leading white of the
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next line - but that's not always possible. Use your built-in problem
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solver (between your ears) when you do not know what the exact error is.
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- The parser knows nothing about currently defined dynamic ops, but has to
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respect possible definitions of dynamic ops. That's why:
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- Any sequence of 'graphic chars' (_incl. those containing a dot_) is taken
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as _one_ graphic token, and not - as you might expect - your user-defined
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operator followed by fullstop (or sequence of ops).
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- A single dot in the outmost term of a clause is taken as a fullstop, even
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if it is actually a user-defined operator.
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- Else, a single dot is highlighted as "Warning" because it might be a
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user-def'd op (usually an error, but can not decide w/o current_op/3).
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- Detection of the fullstop relies upon the usual semantics of braces.
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- Axioms of folding capabilities are: the literal fullstop as stop symbol
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and the usual semantics of braces w/ pairs of opening and closing brace.
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?- period.
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uncaught exception: error(existence_error(procedure,current_op/3),highlight/2)
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SOLUTIONS
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- Help the parser by puting whitespace (space/tab/nl) here and there, espc.
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after the fullstop, or use quotes; e.g. '/*' does not begin a comment,
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neither does '%', and ***'.' can be two operators.
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Functored syntax should always do, e.g. */*(X,Y) is valid (and does not
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begin a comment).
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- Folding: s/t moving the mouse slightly below the marker shows what you
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want, s/t an empty line helps (or removing an empty line), when it's
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removed regions stay ok, or break auto-folding w/ non-white @begin of
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line. Try a newer kate version.
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AL GUSTO (simple changes):
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- Change classification of built-in predicates: adjust the <list> below.
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- Reminder for other changes: solo chars - DetectChar, graphic - RegExpr.
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- bar "|" (solo) is highlighted as "other built-in operator" in lists, else
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"Normal Text". You may safely remove/comment out the rules in contexts
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"term/list/curly" below if you add in in context "operator" or "atomic".
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If it shall be part of user-defined ops, it has to be added to "gr_char",
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and a few rules need adjustment. Search for "&bar;". You may then safely
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add it to "predefined_ops" above (don't forget to escape it).
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- cut "!" (solo) can be adjusted like the bar.
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- comma "," (solo) is "Normal Text" in lists, else "Logic & Control". You
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may safely remove/comment out the rules in "term/nested/list/curly" below
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and handle it in the context "operator".
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- Disable arith_expr: replace "context="arith_expr"" w/ "context="#stay""
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in the rules in contexts "atomic" and "operator" (two or three occurrences).
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- Disable indentation-based folding: in the section "general"@EOF:"folding".
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- General guidelines: Be nice to slow/old hardware: avoid RegExpr (start w/
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a RegExpr, test, then find a replacement), else match a RegExpr as late as
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possible - it's expensive, a context switch is relatively cheap.
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Eat as much text as possible in one run, e.g. in comments and quoted we
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use "DetectIdentifier", else the engine would try all rules of the context
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(w/ failure) and eat only one char on each run.
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If your modification is kind of general, upload it and drop me a note.
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The simplified syntax below should highlight 99.999% of ISO-Prolog texts
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correctly, as well as many non-ISO Prolog texts.
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Else modify this file. Save with new name in your HOME directory to
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.trinity/share/apps/katepart/syntax/prolog.xml You may read the NOTE at the end
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of this file. WARNING: Be careful, though: the highlighting works according to
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it's program code, not neccessarily it's documentation...
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DONE- Parse (m)any (!) conforming Prolog texts w/ correct highlighting (LIMITS)
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- Parse any erratic text w/o crash or endless loops and highlight errors
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- Folding for multiline comments, clauses, nested terms, and quoted (LIMITS)
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- Folding inside comments and of 1-line comments and clauses: indentation-
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based like in Python, e.g.
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my_pred(a). % w/ marker@left (western style; depends on your settings)
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my_pred(b). % you can fold
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my_pred(c). % these lines
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Inside clauses (i.e. context "term" and below) only explicit folding for
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braces and quotes applies, except comments. I did not find a better
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solution, since the engine does not provide lookahead to the next line.
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- Additionally, folding with %BEGIN ... %END (iff 1st nonwhite of the line).
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- Classify built-ins (YMMV) for different highlighting, mainly:
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- w/ side effects from 'outside world' (arithmetics, stream I/O,...)
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- w/o side effects, only depend on user's program ('internal world')
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- program logic & control constructs
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- altering the clause knowledge base or Prolog state
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- integer/float/mixed arithmetics, so one can see the type of the result
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- Iff it's an arithmetic expression; else arith ops and built-ins
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are highlighted normal.
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- Incl. Sep2012 DRAFT Technical Corrigendum 2: Prolog - Part 1: General Core
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- Incl. honourable Richard O'Keefe's remarks as warnings as "ISO bogus".
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- Detect 'shebang' shell scripts, see BUGs
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- Includes alert_indent.xml to highlight alert keywords in comments.
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- Dot "." may be an _unquoted_ user-defined operator in nested terms (but is
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highlighted as "Warning" 'cause it's more likely a typo than an user-def'd
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op) and is only taken as fullstop and highlighted as "Logic & Control" in
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the outmost term of a clause.
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- Über-correct handling of quoted, escape seqs and "0'" (char code integer):
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- detection of valid/invalid newline in quoted 'strings'.
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- highlight whitespace after esc'd newline in quoted so it differs from
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whitespace contained in the quoted 'string'.
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- Highlight esc'd tab and tab in quoted as "Warning" because some text
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editors may convert them to space and it is easy to use "\t" instead.
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- Preliminary: most names end w/ ISO; prepared to be included in syntax
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files adapted for Prolog dialects.
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FIXME When katepart can supply line numbers, fix the "shebang" rule.
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TODO sorted by priority
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1 - [always] Cruise over all FIXMEs.
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2 - Check if comma, cut & bar are really solo chars (where's the red book?).
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3 - Check final Technical Corrigendum 2: Prolog - Part 1: General Core
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4 - Buy ISO Prolog standard - Part 2: Modules. Likely only keywords. Need it
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anyway.
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5 - Make this strict-ISO and a "Prolog (portable)" that includes this file.
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6 - Likewise, adopt for GNU & SWI Prolog and others.
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8 - keywords 'phrase', streams depricated, etc.pp. ==> Prolog (portable).
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9 - Likewise: shebang ==> Prolog (portable).
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10 - Check if shebang can span multiple (escaped) lines.
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11 - Check: all KB altering preds can have side effects (via resource_error)?
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12 - For next two TODOs: ask katepart dev to provide lookahead to the next line
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13 - Folding for consecutive one-line comments [easy? HARD! Impossible.]
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14 - Likewise, folding for consecutive clauses [HARD! Impossible.]
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I can live w/ indentation-based folding as a workaround. Not 100%, but ok.
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15 - +arg_seq (and list): "," as normal text: Detect name( [no layout; easy]
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16 - +Classify meta predicates.
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18 - The dollar "$" is commonly used as the 1st char of (unquoted?) atoms to
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indicate 'internal mode', e.g. to declare a predicate as compile-in.
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Does this mean the dollar is used as if it were a prefix op or is it part
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of the atom? Would be easy to implement.
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19 - Bug #4: could be partly fixed, some built-ins take only float not integer.
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20 - Bug them to better document weakDeliminators (and rename to delimiter ;)
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21 - Adjust doxygen syntax for Prolog (e.g. adapt doxygen-lua), and include it.
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22 - Check if vertical tab is white/layout; are there more non-printables?
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################################################################################
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-->
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<!-- [Facts & Implications Of The ISO Standard, as a reminder]
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- 'layout' is whitespace (space/tab/newline) and/or comments.
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- Braces (any of "(){}[]"), exclamation "!" (aka 'cut'), 'bar' "|", degree "°",
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paragraph "§" and percent "%" are NOT 'graphic' chars, but 'solo' chars.
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- The 'bar' "|" may be a predefined operator, and then a user-def'd op, too.
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- There can only be (at most) one bar "|" in a list (written inside "[]"), and
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no commata after it (after the bar).
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- Graphic tokens are atoms (and solo chars are one-char atoms?).
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- "{}" and "[]" are 'special atoms' (likewise "()"?).
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- "{}" and "[]" shall not be operators (but round or single braces may be?).
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- The fullstop "." is not a predefined postfix operator, and
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- the list functor "." is not a predefined prefix operator.
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- An unquoted graphic token shall not begin with "/*".
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- Multiline comments shall not be nested.
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- Floats are NOT written with lowercase "e" (i.e. not neccessarily an error if
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e.g. "e" is a pre- or user-defined expr or op and the whole term is valid),
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- and the fractional part and exponent of floats are optional (any and both).
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- A leading minus immediately preceding a number is optional for all numbers
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and then part of the number and not a prefix operator (currently beeing
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clarified by the standard commitee if "immediately" includes layout, only
|
|
|
|
comments, or none of these at all ;) but
|
|
|
|
- the minus "-" is a predefined prefix- and infix operator...
|
|
|
|
- Terms are rewritten when read in, extendable by user-def'd rules (and these
|
|
|
|
may be dynamic), i.e. clauses are not restricted to the standard forms
|
|
|
|
(to the extent that the fullstop ending a clause may be omited at all) and
|
|
|
|
- the dot "." may be (solo or part of) an user-defined operator.
|
|
|
|
- A Prolog processor may use any character set, e.g. (multi-byte) Unicode.
|
|
|
|
- Virtually every token may be an (user- or predefined) operator, except a few
|
|
|
|
specifically excluded tokens (i.e. NOT just graphic and 'standard' atoms).
|
|
|
|
- All operators except the comma are dynamic (although the standard denotes
|
|
|
|
atoms as 'constants' ;), and
|
|
|
|
- (the comma may appear in a user-defined operator (beeing part of it)?).
|
|
|
|
(Now try to write syntax highlighting for Prolog w/o Prolog HAHAHA ;)
|
|
|
|
-->
|
|
|
|
<highlighting>
|
|
|
|
<!-- aka "guru meditation trigger" -->
|
|
|
|
<list name="error term ISO">
|
|
|
|
<item> error </item>
|
|
|
|
</list>
|
|
|
|
<list name="guru meditation terms ISO">
|
|
|
|
<item> instantiation_error </item>
|
|
|
|
<item> uninstantiation_error </item>
|
|
|
|
<item> type_error </item>
|
|
|
|
<item> domain_error </item>
|
|
|
|
<item> existence_error </item>
|
|
|
|
<item> permission_error </item>
|
|
|
|
<item> representation_error </item>
|
|
|
|
<item> evaluation_error </item>
|
|
|
|
<item> resource_error </item>
|
|
|
|
<item> syntax_error </item>
|
|
|
|
<item> system_error </item>
|
|
|
|
</list>
|
|
|
|
|
|
|
|
<!-- These are in fact bogus, DO NOT USE them and bug the ISO standard
|
|
|
|
commitee to abandon char_conversion/2 and to apply common sense to the
|
|
|
|
semantics of include/1 and ensure_loaded/1, i.e. to handle recursion.
|
|
|
|
Bomb them w/ e-mails! It's not the purpose of a standard to fixate
|
|
|
|
errors till eternity. -->
|
|
|
|
<list name="bogus ISO">
|
|
|
|
<item> char_conversion </item>
|
|
|
|
<item> current_char_conversion </item>
|
|
|
|
<item> include </item>
|
|
|
|
<item> ensure_loaded </item>
|
|
|
|
<!-- Use atan2 instead -->
|
|
|
|
<item> atan </item>
|
|
|
|
<!-- Unspecified integer representation/format -->
|
|
|
|
<item> xor </item>
|
|
|
|
</list>
|
|
|
|
<list name="directives non-ISO">
|
|
|
|
<!-- FIXME is this a top_level goal only? (consult :- include) -->
|
|
|
|
<item> consult </item>
|
|
|
|
<item> built_in </item>
|
|
|
|
<!--GNU <item> foreign </item> -->
|
|
|
|
<!--GNU <item> ensure_linked </item> -->
|
|
|
|
<!--GNU <item> built_in_fd </item> -->
|
|
|
|
<!-- <item> if </item> -->
|
|
|
|
<!-- <item> else </item> -->
|
|
|
|
<!-- <item> endif </item> -->
|
|
|
|
<!-- <item> elif </item> -->
|
|
|
|
</list>
|
|
|
|
|
|
|
|
<!-- including directive "initialization" -->
|
|
|
|
<list name="logic+control ISO">
|
|
|
|
<item> initialization </item>
|
|
|
|
<!-- <item> ! </item> -->
|
|
|
|
<item> fail </item>
|
|
|
|
<item> repeat </item>
|
|
|
|
<item> call </item>
|
|
|
|
<item> catch </item>
|
|
|
|
<item> throw </item>
|
|
|
|
<item> true </item>
|
|
|
|
<item> false </item>
|
|
|
|
<item> once </item>
|
|
|
|
</list>
|
|
|
|
|
|
|
|
<!-- including directive "dynamic" -->
|
|
|
|
<list name="dyn clause mgmt ISO">
|
|
|
|
<item> dynamic </item>
|
|
|
|
<item> asserta </item>
|
|
|
|
<item> assertz </item>
|
|
|
|
<item> retractall </item>
|
|
|
|
<item> retract </item>
|
|
|
|
<item> abolish </item>
|
|
|
|
<item> clause </item>
|
|
|
|
<!-- <item> numbervars </item> -->
|
|
|
|
<!-- <item> current_predicate </item> -->
|
|
|
|
</list>
|
|
|
|
<list name="listing non-ISO">
|
|
|
|
<!-- FIXME is this a top_level goal? -->
|
|
|
|
<item> listing </item>
|
|
|
|
<!-- standard/compatible <item> public </item> -->
|
|
|
|
</list>
|
|
|
|
<list name="terms ISO">
|
|
|
|
<!-- keep tokens with same prefix sorted by length? -->
|
|
|
|
<item> atom_concat </item>
|
|
|
|
<item> atom_length </item>
|
|
|
|
<item> atom_chars </item>
|
|
|
|
<item> atom_codes </item>
|
|
|
|
<item> arg </item>
|
|
|
|
<item> subsumes_term </item>
|
|
|
|
<item> acyclic_term </item>
|
|
|
|
<item> char_code </item>
|
|
|
|
<item> compare </item>
|
|
|
|
<item> copy_term </item>
|
|
|
|
<item> functor </item>
|
|
|
|
<item> number_chars </item>
|
|
|
|
<item> number_codes </item>
|
|
|
|
<!--FIXME check if GNU or ISO <item> sub_atom </item> -->
|
|
|
|
<item> term_variables </item>
|
|
|
|
<item> unify_with_occurs_check </item>
|
|
|
|
</list>
|
|
|
|
<list name="terms non-ISO">
|
|
|
|
<!-- keep tokens with same prefix sorted by length? -->
|
|
|
|
<item> number_atom </item>
|
|
|
|
<item> expand_term </item>
|
|
|
|
<item> term_expansion </item>
|
|
|
|
|
|
|
|
<!--FIXME These go to streams non-ISO: -->
|
|
|
|
<item> display </item>
|
|
|
|
<item> print </item>
|
|
|
|
<item> format </item>
|
|
|
|
<item> portray_clause </item>
|
|
|
|
<item> portray </item>
|
|
|
|
<item> term_expansion </item>
|
|
|
|
</list>
|
|
|
|
<list name="DCG non-ISO">
|
|
|
|
<item> phrase </item>
|
|
|
|
</list>
|
|
|
|
<list name="lists ISO">
|
|
|
|
<item> sort </item>
|
|
|
|
<item> keysort </item>
|
|
|
|
</list>
|
|
|
|
<list name="lists non-ISO">
|
|
|
|
<item> append </item>
|
|
|
|
<item> delete </item>
|
|
|
|
<item> length </item>
|
|
|
|
<item> last </item>
|
|
|
|
<item> map_list </item>
|
|
|
|
<item> min_list </item>
|
|
|
|
<item> maplist </item>
|
|
|
|
<item> msort </item>
|
|
|
|
<item> memberchk </item>
|
|
|
|
<item> member </item>
|
|
|
|
<item> nth </item>
|
|
|
|
<item> permutation </item>
|
|
|
|
<item> reverse </item>
|
|
|
|
<item> select </item>
|
|
|
|
<item> prefix </item>
|
|
|
|
<item> suffix </item>
|
|
|
|
<item> sublist </item>
|
|
|
|
<item> sum_list </item>
|
|
|
|
</list>
|
|
|
|
<list name="streams ISO">
|
|
|
|
<item> open </item>
|
|
|
|
<!--GNU <item> current_stream </item>-->
|
|
|
|
<item> set_stream_position </item>
|
|
|
|
<item> get_char </item>
|
|
|
|
<item> get_code </item>
|
|
|
|
<item> peek_char </item>
|
|
|
|
<item> peek_code </item>
|
|
|
|
<item> get_byte </item>
|
|
|
|
<item> peek_byte </item>
|
|
|
|
|
|
|
|
<item> put_char </item>
|
|
|
|
<item> put_code </item>
|
|
|
|
<item> put_byte </item>
|
|
|
|
<item> nl </item>
|
|
|
|
|
|
|
|
<item> read_term </item>
|
|
|
|
<item> read </item>
|
|
|
|
<item> write_canonical </item>
|
|
|
|
<item> writeq </item>
|
|
|
|
<item> write </item>
|
|
|
|
</list>
|
|
|
|
<list name="streams deprecated">
|
|
|
|
<item> append </item>
|
|
|
|
<item> seeing </item>
|
|
|
|
<item> seen </item>
|
|
|
|
<item> see </item>
|
|
|
|
<item> telling </item>
|
|
|
|
<item> tell </item>
|
|
|
|
<item> told </item>
|
|
|
|
<item> get0 </item>
|
|
|
|
<item> get </item>
|
|
|
|
<item> skip </item>
|
|
|
|
<item> put </item>
|
|
|
|
<item> tab </item>
|
|
|
|
</list>
|
|
|
|
<list name="arith eval ISO">
|
|
|
|
<item> is </item>
|
|
|
|
</list>
|
|
|
|
<list name="arith ops int ISO">
|
|
|
|
<item> rem </item>
|
|
|
|
<item> mod </item>
|
|
|
|
<item> div </item>
|
|
|
|
</list>
|
|
|
|
<list name="arith expr mixed ISO">
|
|
|
|
<!--GNU arith IF expr <item> inc </item> -->
|
|
|
|
<!--GNU arith IF expr <item> dec </item> -->
|
|
|
|
<item> abs </item>
|
|
|
|
<item> sign </item>
|
|
|
|
<item> min </item>
|
|
|
|
<item> max </item>
|
|
|
|
</list>
|
|
|
|
<list name="arith expr int ISO">
|
|
|
|
<!--GNU arith IF expr <item> inc </item> -->
|
|
|
|
<!--GNU arith IF expr <item> dec </item> -->
|
|
|
|
<item> ceiling </item>
|
|
|
|
<item> floor </item>
|
|
|
|
<item> round </item>
|
|
|
|
<item> truncate </item>
|
|
|
|
<!-- ISO bogus <item> xor </item> -->
|
|
|
|
</list>
|
|
|
|
<list name="arith expr float ISO">
|
|
|
|
<item> pi </item>
|
|
|
|
<!--GNU (see pi) <item> e </item> -->
|
|
|
|
<!--GNU (see pi) <item> epsilon </item> -->
|
|
|
|
<item> sqrt </item>
|
|
|
|
<item> tan </item>
|
|
|
|
<item> cos </item>
|
|
|
|
<item> sin </item>
|
|
|
|
<item> atan2 </item>
|
|
|
|
<item> acos </item>
|
|
|
|
<item> asin </item>
|
|
|
|
<item> exp </item>
|
|
|
|
<item> log </item>
|
|
|
|
<item> float </item>
|
|
|
|
<item> float_fractional_part </item>
|
|
|
|
<item> float_integer_part </item>
|
|
|
|
</list>
|
|
|
|
|
|
|
|
<!-- including directives "op/multifile/discontigous" -->
|
|
|
|
<list name="prolog state ISO">
|
|
|
|
<item> multifile </item>
|
|
|
|
<item> discontigous </item>
|
|
|
|
<item> op </item>
|
|
|
|
<item> set_prolog_flag </item>
|
|
|
|
</list>
|
|
|
|
<list name="types ISO">
|
|
|
|
<item> var </item>
|
|
|
|
<item> nonvar </item>
|
|
|
|
<item> atom </item>
|
|
|
|
<item> integer </item>
|
|
|
|
<item> float </item>
|
|
|
|
<item> number </item>
|
|
|
|
<item> atomic </item>
|
|
|
|
<item> compound </item>
|
|
|
|
<item> callable </item>
|
|
|
|
<item> ground </item>
|
|
|
|
</list>
|
|
|
|
<!-- FIXME rename to "types non-ISO"? -->
|
|
|
|
<list name="list+is_list non-ISO">
|
|
|
|
<item> list </item>
|
|
|
|
<item> is_list </item>
|
|
|
|
<!--GNU <item> partial_list </item> -->
|
|
|
|
<!--GNU <item> list_or_partial_list </item> -->
|
|
|
|
</list>
|
|
|
|
<list name="built-ins ISO">
|
|
|
|
<item> current_op </item>
|
|
|
|
<item> current_prolog_flag </item>
|
|
|
|
<item> current_input </item>
|
|
|
|
<item> current_output </item>
|
|
|
|
|
|
|
|
<!-- These act on streams, but the permission_error is only thrown
|
|
|
|
if the programmer tries to set_input(S) when S is alread an output
|
|
|
|
stream and vice versa; so: not affected by 'outside world' -->
|
|
|
|
<item> set_input </item>
|
|
|
|
<item> set_output </item>
|
|
|
|
|
|
|
|
<!-- may throw a system_error in GNU -->
|
|
|
|
<item> close </item>
|
|
|
|
|
|
|
|
<item> flush_output </item>
|
|
|
|
|
|
|
|
<!-- may throw permission_error in GNU if S is an output stream -->
|
|
|
|
<item> at_end_of_stream </item>
|
|
|
|
|
|
|
|
<item> stream_property </item>
|
|
|
|
</list>
|
|
|
|
|
|
|
|
<!-- !FOLD the <context> rules & comments for an overview, then it's no magic. -->
|
|
|
|
<contexts>
|
|
|
|
<!-- Catch typos: style="Syntax Error" for all rules except comments and
|
|
|
|
quoted. This helps to catch bugs in the rules itself, too. Nice
|
|
|
|
debuging aid. Note that (naturally) some of the syntax rules given in
|
|
|
|
EBNF are simplified and do not describe 100% valid Prolog.
|
|
|
|
|
|
|
|
prolog text := shebang clause_seq | clause_seq
|
|
|
|
clause_seq := clause clause_seq | empty
|
|
|
|
clause := layout term_seq fullstop | term_seq fullstop
|
|
|
|
-->
|
|
|
|
<!-- shebang: ("#!") Detect shebang and fallthrough to clause_seq -->
|
|
|
|
<context name="shebang" lineEndContext="clause" attribute="Syntax Error" >
|
|
|
|
<!-- no way: fallthrough="1" fallthroughContext="clause_seq" > -->
|
|
|
|
<Detect2Chars column="0" char="#" char1="!" context="1-comment" attribute="% italic predicates: w/ side effects" />
|
|
|
|
<!-- else fallthrough (workaround broken fallthrough) -->
|
|
|
|
<RegExpr String="&any;" lookAhead="true" context="clause" attribute="Syntax Error" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- syntax error (Test & Debug Aid, too): it's enough to highlight next token -->
|
|
|
|
<context name="syntax_error" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" >
|
|
|
|
<DetectSpaces context="#pop" attribute="Syntax Error" />
|
|
|
|
<DetectIdentifier context="#pop" attribute="Syntax Error" />
|
|
|
|
<RegExpr String="&any;" context="#pop" attribute="Syntax Error" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- clause: Start a region for code folding and switch to term -->
|
|
|
|
<!-- <context name="clause" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" > -->
|
|
|
|
<context name="clause" lineEndContext="#stay" attribute="Syntax Error" >
|
|
|
|
<IncludeRules context="layout" />
|
|
|
|
<!-- KISS: do not force term to detect an empty clause as syntax error -->
|
|
|
|
<RegExpr String="&fullstop_iso;" context="#stay" attribute="Warning (!use background)" />
|
|
|
|
<!-- <RegExpr lookAhead="true" String="&any;" context="term" attribute="Syntax Error" /> -->
|
|
|
|
<RegExpr lookAhead="true" String="&any;" context="term" beginRegion="clause" attribute="Syntax Error" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!--term/nested/list/curly: the master/dispatcher -->
|
|
|
|
<!-- (abbreviated): term := var | atomic | compound | "(" term ")"
|
|
|
|
|
|
|
|
(term_seq := term "," term_seq | term Not needed: comma is an op)
|
|
|
|
term := layout solo layout | layout solo | solo layout | solo
|
|
|
|
solo := var | atomic | compound | "(" term ")"
|
|
|
|
compound := op term | term op | term op term | functored | list
|
|
|
|
functored := atom "(" arg_seq ")" | op "(" arg_seq ")"
|
|
|
|
list := "[" l_arg_seq "]" | double_quoted | "." "(" arg_seq ")"
|
|
|
|
(if semantics of double_quoted not changed by set_prolog_flag/2)
|
|
|
|
sorry I forgot curly: the DCG term but can not contain the fullstop.
|
|
|
|
|
|
|
|
Comments in 'term' apply to the others as well.
|
|
|
|
Note that eating layout once is enough, since we come back here.
|
|
|
|
Only end the clause in the outmost term, which can only be term. -->
|
|
|
|
<context name="term" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" >
|
|
|
|
<IncludeRules context="layout" />
|
|
|
|
<DetectChar char="(" context="nested" beginRegion="nested" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="[" context="list" beginRegion="list" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="{" context="curly" beginRegion="curly" attribute="{ DCG }" />
|
|
|
|
<DetectChar char="," context="#stay" attribute="Logic & Control" />
|
|
|
|
<DetectChar char="&cut;" context="#stay" attribute="Logic & Control" />
|
|
|
|
<DetectChar char="&bar;" context="#stay" attribute="Normal Text" />
|
|
|
|
<!-- lookAhead to give different style to the dot and the brace -->
|
|
|
|
<Detect2Chars lookAhead="true" char="˙" char1="(" context="list_functor" attribute="Syntax Error" />
|
|
|
|
<!-- <RegExpr String="&fullstop_iso;" context="#pop" attribute="Logic & Control" /> -->
|
|
|
|
<RegExpr String="&fullstop_iso;" context="#pop" endRegion="clause" attribute="Logic & Control" />
|
|
|
|
<IncludeRules context="atomic" />
|
|
|
|
<!-- Default: anything not eaten here is a syntax error -->
|
|
|
|
</context>
|
|
|
|
<context name="nested" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" >
|
|
|
|
<IncludeRules context="layout" />
|
|
|
|
<DetectChar char=")" context="#pop" endRegion="nested" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="(" context="nested" beginRegion="nested" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="[" context="list" beginRegion="list" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="{" context="curly" beginRegion="curly" attribute="{ DCG }" />
|
|
|
|
<DetectChar char="&cut;" context="#stay" attribute="Logic & Control" />
|
|
|
|
<DetectChar char="," context="#stay" attribute="Logic & Control" />
|
|
|
|
<DetectChar char="&bar;" context="#stay" attribute="Normal Text" />
|
|
|
|
<Detect2Chars lookAhead="true" char="˙" char1="(" context="list_functor" attribute="Normal Text" />
|
|
|
|
<RegExpr String="&fullstop_iso;" context="#stay" attribute="Warning (!use background)" />
|
|
|
|
<IncludeRules context="atomic" />
|
|
|
|
</context>
|
|
|
|
<context name="list" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" >
|
|
|
|
<IncludeRules context="layout" />
|
|
|
|
<DetectChar char="(" context="nested" beginRegion="nested" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="]" context="#pop" endRegion="list" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="[" context="list" beginRegion="list" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="{" context="curly" beginRegion="curly" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="," context="#stay" attribute="Normal Text" />
|
|
|
|
<DetectChar char="&cut;" context="#stay" attribute="Normal Text" />
|
|
|
|
<DetectChar char="&bar;" context="#stay" attribute="other built-in operator" />
|
|
|
|
<Detect2Chars lookAhead="true" char="˙" char1="(" context="list_functor" attribute="Normal Text" />
|
|
|
|
<IncludeRules context="atomic" />
|
|
|
|
</context>
|
|
|
|
<context name="curly" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" >
|
|
|
|
<IncludeRules context="layout" />
|
|
|
|
<DetectChar char="(" context="nested" beginRegion="nested" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="[" context="list" beginRegion="list" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char="}" context="#pop" endRegion="curly" attribute="{ DCG }" />
|
|
|
|
<DetectChar char="{" context="curly" beginRegion="curly" attribute="{ DCG }" />
|
|
|
|
<DetectChar char="," context="#stay" attribute="Logic & Control" />
|
|
|
|
<DetectChar char="&cut;" context="#stay" attribute="Logic & Control" />
|
|
|
|
<DetectChar char="&bar;" context="#stay" attribute="Normal Text" />
|
|
|
|
<Detect2Chars lookAhead="true" char="˙" char1="(" context="list_functor" attribute="Normal Text" />
|
|
|
|
<IncludeRules context="atomic" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- arith_expr := expr op expr | op expr | expr op | "(" expr ")"
|
|
|
|
expr := number_expr | var | arith_expr
|
|
|
|
|
|
|
|
This is only a goody to highlight arith ops and detect syntax errors.
|
|
|
|
If it causes problems, disable it: exchange context="arith_expr" in
|
|
|
|
"atomic" and "operator" below with context="#stay" (two or three occurrences) -->
|
|
|
|
<context name="arith_expr" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" >
|
|
|
|
<DetectChar char="(" context="nested_expr" beginRegion="nested" attribute="( ) [ ]" />
|
|
|
|
<DetectChar lookAhead="true" char=")" context="#pop" attribute="( ) [ ]" />
|
|
|
|
<DetectChar lookAhead="true" char="}" context="#pop" attribute="{ DCG }" />
|
|
|
|
<DetectChar lookAhead="true" char="]" context="#pop" attribute="( ) [ ]" />
|
|
|
|
<!-- FIXME check if cut may be an op, else (and in any case 99.9% likely) it's a usual cut here -->
|
|
|
|
<DetectChar lookAhead="true" char="&cut;" context="#pop" attribute="Logic & Control" />
|
|
|
|
<DetectChar lookAhead="true" char="," context="#pop" attribute="Logic & Control" />
|
|
|
|
<!-- bar & dot could be a user-def'd op, pre-def'd ops could be
|
|
|
|
redef'd; but let's assume the default and just end the expr -->
|
|
|
|
<DetectChar lookAhead="true" char="&bar;" context="#pop" attribute="other built-in operator" />
|
|
|
|
<RegExpr lookAhead="true" String="&fullstop_iso;" context="#pop" attribute="Logic & Control" />
|
|
|
|
<RegExpr lookAhead="true" String="&logic_control_ops_iso;" context="#pop" attribute="Logic & Control" />
|
|
|
|
<IncludeRules context="arith_expr_common" />
|
|
|
|
</context>
|
|
|
|
<context name="nested_expr" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" >
|
|
|
|
<DetectChar char="(" context="nested_expr" beginRegion="nested" attribute="( ) [ ]" />
|
|
|
|
<DetectChar char=")" context="#pop" endRegion="nested" attribute="( ) [ ]" />
|
|
|
|
<!-- FIXME check if cut may be an op, else it's a syntax error here -->
|
|
|
|
<DetectChar char="&cut;" context="#stay" attribute="Normal Text" />
|
|
|
|
<DetectChar char="," context="#stay" attribute="Syntax Error" />
|
|
|
|
<!-- bar & dot could be a user-def'd op, pre-def'd ops could be redef'd; else these were errors -->
|
|
|
|
<DetectChar char="&bar;" context="#stay" attribute="Normal Text" />
|
|
|
|
<RegExpr String="&logic_control_ops_iso;" context="#stay" attribute="other built-in operator" />
|
|
|
|
<IncludeRules context="arith_expr_common" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- list functor: assign style to the dot and let term/list/curly take the brace
|
|
|
|
(We have no style "built-in term", so take "Normal text" or "built-in predicate")
|
|
|
|
ASSERT 1st is the dot, else "Syntax Error" INTENTIONALLY -->
|
|
|
|
<context name="list_functor" lineEndContext="syntax_error" attribute="Syntax Error" >
|
|
|
|
<DetectChar char="˙" context="#pop" attribute="other built-in predicate" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- single/double/back-quoted: handle esc seq and closing quote
|
|
|
|
Comments in single-quoted apply to the others as well.
|
|
|
|
Entry point is single/double/back-quoted (only to handle syntax error:
|
|
|
|
nl after opening quote), sq/dq/bq is inside the string.
|
|
|
|
lineEndContext should be "syntax_error", but then we couldn't handle
|
|
|
|
a valid esc'd line continuation. So we do that 'in vitro' (took me
|
|
|
|
2 days w/ a plethora of useless rules to solve that puzzle LOL).
|
|
|
|
On error must not #stay, else the error isn't shown iff white or empty -->
|
|
|
|
<context name="sq" lineEndContext="#stay" attribute="'quo Ted'" noIndentationBasedFolding="true">
|
|
|
|
<!-- <context name="single-quoted" lineEndContext="#stay" attribute="'quo Ted'" > -->
|
|
|
|
<IncludeRules context="quoted_1st"/>
|
|
|
|
<!-- un-esc'd nl is a syntax error; match max seq (+), else the
|
|
|
|
error is only shown in the next line -->
|
|
|
|
<RegExpr String="(''|&esc_oct_iso;|&esc_hex_iso;|\\&any;|[^'\\]+)$"
|
|
|
|
context="syntax_error_sq" attribute="Syntax Error" />
|
|
|
|
<!-- Usual handling: -->
|
|
|
|
<Detect2Chars char="'" char1="'" context="#stay" attribute="escaped (!use background)" />
|
|
|
|
<DetectChar char="'" context="#pop#pop" endRegion="quoted" attribute="'quo Ted'" />
|
|
|
|
<IncludeRules context="quoted_last"/>
|
|
|
|
<!-- Default: literal content of the quoted string, context's style applies -->
|
|
|
|
</context>
|
|
|
|
<context name="dq" lineEndContext="#stay" attribute=""double-quoted"" noIndentationBasedFolding="true" >
|
|
|
|
<!-- <context name="double-quoted" lineEndContext="#stay" attribute=""double-quoted"" > -->
|
|
|
|
<IncludeRules context="quoted_1st"/>
|
|
|
|
<RegExpr String="(""|&esc_oct_iso;|&esc_hex_iso;|\\&any;|[^"\\]+)$"
|
|
|
|
context="syntax_error_dq" attribute="Syntax Error" />
|
|
|
|
<Detect2Chars char=""" char1=""" context="#stay" attribute="escaped (!use background)" />
|
|
|
|
<DetectChar char=""" context="#pop#pop" endRegion="quoted" attribute=""double-quoted"" />
|
|
|
|
<IncludeRules context="quoted_last"/>
|
|
|
|
</context>
|
|
|
|
<context name="bq" lineEndContext="#stay" attribute="`back-quoted`" noIndentationBasedFolding="true" >
|
|
|
|
<!-- <context name="back-quoted" lineEndContext="#stay" attribute="`back-quoted`" > -->
|
|
|
|
<IncludeRules context="quoted_1st"/>
|
|
|
|
<RegExpr String="(``|&esc_oct_iso;|&esc_hex_iso;|\\&any;|[^`\\]+)$"
|
|
|
|
context="syntax_error_bq" attribute="Syntax Error" />
|
|
|
|
<Detect2Chars char="`" char1="`" attribute="escaped (!use background)" />
|
|
|
|
<DetectChar char="`" context="#pop#pop" endRegion="quoted" attribute="`back-quoted`" />
|
|
|
|
<IncludeRules context="quoted_last"/>
|
|
|
|
</context>
|
|
|
|
<context name="single-quoted" lineEndContext="#stay" attribute="'quo Ted'" >
|
|
|
|
<RegExpr String="'$" context="sq" beginRegion="quoted" attribute="Syntax Error" />
|
|
|
|
<DetectChar char="'" context="sq" beginRegion="quoted" attribute="'quo Ted'" />
|
|
|
|
</context>
|
|
|
|
<context name="double-quoted" lineEndContext="#stay" attribute=""double-quoted"" >
|
|
|
|
<RegExpr String=""$" context="dq" beginRegion="quoted" attribute="Syntax Error" />
|
|
|
|
<DetectChar char=""" context="dq" beginRegion="quoted" attribute=""double-quoted"" />
|
|
|
|
</context>
|
|
|
|
<context name="back-quoted" lineEndContext="#stay" attribute="`back-quoted`" >
|
|
|
|
<RegExpr String="`$" context="bq" beginRegion="quoted" attribute="Syntax Error" />
|
|
|
|
<DetectChar char="`" context="bq" beginRegion="quoted" attribute="`back-quoted`" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- syntax_error_q: highlight next token and proceed normal afterwards -->
|
|
|
|
<context name="syntax_error_sq" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" >
|
|
|
|
<Detect2Chars char="\" char1="'" context="#pop" attribute="Syntax Error" />
|
|
|
|
<Detect2Chars char="'" char1="'" context="#pop" attribute="Syntax Error" />
|
|
|
|
<DetectChar char="'" context="#pop#pop#pop" endRegion="quoted" attribute="Syntax Error" />
|
|
|
|
<IncludeRules context="syntax_error"/>
|
|
|
|
</context>
|
|
|
|
<context name="syntax_error_dq" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" >
|
|
|
|
<Detect2Chars char="\" char1=""" context="#pop" attribute="Syntax Error" />
|
|
|
|
<Detect2Chars char=""" char1=""" context="#pop" attribute="Syntax Error" />
|
|
|
|
<DetectChar char=""" context="#pop#pop#pop" endRegion="quoted" attribute="Syntax Error" />
|
|
|
|
<IncludeRules context="syntax_error"/>
|
|
|
|
</context>
|
|
|
|
<context name="syntax_error_bq" lineEndContext="#stay" attribute="Syntax Error" noIndentationBasedFolding="true" >
|
|
|
|
<Detect2Chars char="\" char1="`" context="#pop" attribute="Syntax Error" />
|
|
|
|
<Detect2Chars char="`" char1="`" context="#pop" attribute="Syntax Error" />
|
|
|
|
<DetectChar char="`" context="#pop#pop#pop" endRegion="quoted" attribute="Syntax Error" />
|
|
|
|
<IncludeRules context="syntax_error"/>
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- char_code (after "0'"): esc seq, singleq twice, or any other -->
|
|
|
|
<context name="char_code" lineEndContext="#pop" attribute="Syntax Error" >
|
|
|
|
<Detect2Chars char="'" char1="'" context="#pop" attribute="escaped (!use background)" />
|
|
|
|
<DetectChar char="'" context="#pop" attribute="Syntax Error" />
|
|
|
|
<DetectChar char="&bs;" context="esc_seq_cc" attribute="escaped (!use background)" />
|
|
|
|
<DetectChar char="&tab;" context="#pop" attribute="Warning (!use background)" />
|
|
|
|
<!-- Default _AND IF_ esc_seq #pops back here; we need this to #pop out -->
|
|
|
|
<RegExpr String="&any;" context="#pop" attribute="0'a (!use background)" />
|
|
|
|
</context>
|
|
|
|
<!-- "0'" or "0'\" at EOL is a syntax error, catched below. If
|
|
|
|
possible, highlight white @next line to make clear error is the nl -->
|
|
|
|
<context name="syntax_error_cc" lineEndContext="#stay" attribute="Syntax Error"
|
|
|
|
fallthrough="true" fallthroughContext="#pop" >
|
|
|
|
<DetectSpaces context="#pop" attribute="Syntax Error" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- esc_seq: it's not worth it to handle common for quoted and cc
|
|
|
|
esc_seq_q: handle only cc in bs (e.g. "\007\"), else -> esc_seq_q2
|
|
|
|
ASSERT esc'd newline is handled by the calling context
|
|
|
|
ASSERT we get the leading bs here to highlight the whole thing -->
|
|
|
|
<context name="esc_seq_q" lineEndContext="syntax_error" attribute="Syntax Error" >
|
|
|
|
<RegExpr String="&esc_oct_iso;" context="#pop" attribute="0'a (!use background)" />
|
|
|
|
<RegExpr String="&esc_hex_iso;" context="#pop" attribute="0'a (!use background)" />
|
|
|
|
<DetectChar char="&bs;" context="esc_seq_q2" attribute="escaped (!use background)" />
|
|
|
|
</context>
|
|
|
|
<!-- esc_seq_cc: #pop#pop out of cc on std esc seq, else pass char back
|
|
|
|
ASSERT we do NOT need the leading bs here anymore -->
|
|
|
|
<context name="esc_seq_cc" fallthrough="true" fallthroughContext="#pop"
|
|
|
|
lineEndContext="#pop#pop" attribute="Syntax Error" >
|
|
|
|
<DetectChar char="&tab;" context="#pop#pop" attribute="Warning (!use background)" />
|
|
|
|
<AnyChar String="&any_esc_iso;" context="#pop#pop" attribute="escaped (!use background)" />
|
|
|
|
</context>
|
|
|
|
<!-- esc_seq_q2: Handle standard esc seq in quoted else pass char back
|
|
|
|
ASSERT we do NOT need the leading bs here anymore -->
|
|
|
|
<context name="esc_seq_q2" fallthrough="true" fallthroughContext="#pop#pop"
|
|
|
|
lineEndContext="syntax_error" attribute="Syntax Error" >
|
|
|
|
<DetectChar char="&tab;" context="#pop#pop" attribute="Warning (!use background)" />
|
|
|
|
<AnyChar String="&any_esc_iso;" context="#pop#pop" attribute="escaped (!use background)" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- id,var,graphic: ASSERT calling context ashured 1st char is ok
|
|
|
|
ASSERT we get the 1st char for id & var -->
|
|
|
|
<context name="id" attribute="Syntax Error" lineEndContext="#stay" >
|
|
|
|
<DetectIdentifier context="#pop" attribute="Normal Text" />
|
|
|
|
</context>
|
|
|
|
<context name="var" attribute="Syntax Error" lineEndContext="#stay" >
|
|
|
|
<DetectIdentifier context="#pop" attribute="_VARIABLE" />
|
|
|
|
</context>
|
|
|
|
<context name="graphic" lineEndContext="#pop" attribute="Syntax Error" fallthrough="true" fallthroughContext="#pop" >
|
|
|
|
<AnyChar String="&any_graphic_iso;" context="#stay" attribute="Normal Text" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- numbers (after "0[box]") -->
|
|
|
|
<context name="bin" lineEndContext="#pop" attribute="Syntax Error" fallthrough="true" fallthroughContext="#pop" >
|
|
|
|
<AnyChar String="&any_bin_iso;" context="#stay" attribute="0b1001 0o007 0xF1" />
|
|
|
|
</context>
|
|
|
|
<context name="oct" lineEndContext="#pop" attribute="Syntax Error" fallthrough="true" fallthroughContext="#pop" >
|
|
|
|
<AnyChar String="&any_oct_iso;" context="#stay" attribute="0b1001 0o007 0xF1" />
|
|
|
|
</context>
|
|
|
|
<context name="hex" lineEndContext="#pop" attribute="Syntax Error" fallthrough="true" fallthroughContext="#pop" >
|
|
|
|
<AnyChar String="&any_hex_iso;" context="#stay" attribute="0b1001 0o007 0xF1" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- comment-iso: multi-line comment, handle closing "*/" -->
|
|
|
|
<context name="comment-iso" lineEndContext="#stay" attribute="% italic predicates: w/ side effects" >
|
|
|
|
<!-- Nested comments are not allowed in strict ISO-Prolog - - >
|
|
|
|
<Detect2Chars char="/" char1="*" context="comment" beginRegion="comment"
|
|
|
|
attribute="% italic predicates: w/ side effects" />-->
|
|
|
|
<Detect2Chars char="*" char1="/" context="#pop" endRegion="comment"
|
|
|
|
attribute="% italic predicates: w/ side effects" />
|
|
|
|
<DetectSpaces />
|
|
|
|
<IncludeRules context="##Alerts_indent" />
|
|
|
|
<DetectIdentifier />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- 1-line comment: #pop@EOL -->
|
|
|
|
<!-- Folding for consecutive 1-line comments: let indentation-based auto-folding work -->
|
|
|
|
<context name="1-comment" lineEndContext="#pop" attribute="% italic predicates: w/ side effects" >
|
|
|
|
<DetectSpaces />
|
|
|
|
<IncludeRules context="##Alerts_indent" />
|
|
|
|
<DetectIdentifier />
|
|
|
|
</context>
|
|
|
|
<context name="region_marker" lineEndContext="#pop" attribute="%BEGIN folding region" noIndentationBasedFolding="true" >
|
|
|
|
<IncludeRules context="1-comment" />
|
|
|
|
</context>
|
|
|
|
<context name="layout_fold" lineEndContext="#stay" attribute="Syntax Error"
|
|
|
|
fallthrough="true" fallthroughContext="#pop" >
|
|
|
|
<DetectSpaces attribute="Normal Text" />
|
|
|
|
<StringDetect String="%BEGIN" context="region_marker" attribute="%BEGIN folding region"
|
|
|
|
firstNonSpace="true" beginRegion="user_region" />
|
|
|
|
<StringDetect String="%END" context="region_marker" attribute="%BEGIN folding region"
|
|
|
|
firstNonSpace="true" endRegion="user_region" />
|
|
|
|
<DetectChar firstNonSpace="true" char="%" context="1-comment" attribute="% italic predicates: w/ side effects" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!--####### BEGIN sub rules to be included - <context> never taken -->
|
|
|
|
|
|
|
|
<!-- Common for all quoted: Handle line continuation, esc seq, and most other input efficiently -->
|
|
|
|
<context name="quoted_1st" lineEndContext="#stay" attribute="Syntax Error" >
|
|
|
|
<LineContinue attribute="escaped (!use background)" />
|
|
|
|
<DetectSpaces column="0" attribute="escaped (!use background)" />
|
|
|
|
</context>
|
|
|
|
<context name="quoted_last" lineEndContext="#stay" attribute="Syntax Error" >
|
|
|
|
<DetectChar lookAhead="true" char="&bs;" context="esc_seq_q" attribute="Syntax Error" />
|
|
|
|
<DetectChar char="&tab;" attribute="Warning (!use background)" />
|
|
|
|
<DetectIdentifier />
|
|
|
|
<DetectSpaces />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- layout_seq := layout layout_seq
|
|
|
|
layout := " " | tab | nl | comment -->
|
|
|
|
<context name="layout" lineEndContext="#stay" attribute="Syntax Error" >
|
|
|
|
<DetectSpaces attribute="Normal Text" />
|
|
|
|
<Detect2Chars char="/" char1="*" context="comment-iso" attribute="% italic predicates: w/ side effects"
|
|
|
|
beginRegion="comment" />
|
|
|
|
<StringDetect String="%BEGIN" context="region_marker" attribute="%BEGIN folding region"
|
|
|
|
firstNonSpace="true" beginRegion="user_region" />
|
|
|
|
<StringDetect String="%END" context="region_marker" attribute="%BEGIN folding region"
|
|
|
|
firstNonSpace="true" endRegion="user_region" />
|
|
|
|
<DetectChar firstNonSpace="true" char="%" context="layout_fold" attribute="% italic predicates: w/ side effects"
|
|
|
|
lookAhead="true" />
|
|
|
|
<DetectChar firstNonSpace="false" char="%" context="1-comment" attribute="% italic predicates: w/ side effects" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!--atomic: the work horse -->
|
|
|
|
<!-- (simplified) atomic := atom | number | op | var -->
|
|
|
|
<context name="atomic" lineEndContext="#stay" attribute="Syntax Error" >
|
|
|
|
<!-- NOTE the order of rules is important... (as always)
|
|
|
|
Predefined 1st, unknown (user defined) last -->
|
|
|
|
<keyword String="logic+control ISO" context="#stay" attribute="Logic & Control" />
|
|
|
|
<keyword String="types ISO" context="#stay" attribute="Type Checking" />
|
|
|
|
<keyword String="dyn clause mgmt ISO" context="#stay" attribute="Dynamic Clause Management" />
|
|
|
|
<keyword String="streams ISO" context="#stay" attribute="Stream I/O" />
|
|
|
|
<keyword String="terms ISO" context="#stay" attribute="other built-in predicate" />
|
|
|
|
<keyword String="prolog state ISO" context="#stay" attribute="Prolog State" />
|
|
|
|
<keyword String="DCG non-ISO" context="#stay" attribute="{ DCG }" />
|
|
|
|
<keyword String="arith eval ISO" context="arith_expr" attribute="Arithmetics" />
|
|
|
|
<!-- These are user predicates outside arit_expr -->
|
|
|
|
<!-- <keyword String="arith expr mixed ISO" context="#stay" attribute="other built-in predicate" /> -->
|
|
|
|
<!-- <keyword String="arith expr int ISO" context="#stay" attribute="other built-in predicate" /> -->
|
|
|
|
<!-- <keyword String="arith expr float ISO" context="#stay" attribute="other built-in predicate" /> -->
|
|
|
|
<keyword String="built-ins ISO" context="#stay" attribute="other built-in predicate" />
|
|
|
|
<keyword String="error term ISO" context="#stay" attribute="Guru Meditation" />
|
|
|
|
<keyword String="guru meditation terms ISO" context="#stay" attribute="Guru Meditation Terms" />
|
|
|
|
<keyword String="bogus ISO" context="#stay" attribute="ISO Bogus" />
|
|
|
|
|
|
|
|
<!-- Match char code before quoted and ops... -->
|
|
|
|
<IncludeRules context="number" />
|
|
|
|
|
|
|
|
<!-- these depend on current_prolog_flag/2 so can all return a term i.e. a list (of char codes) -->
|
|
|
|
<DetectChar lookAhead="true" char="'" context="single-quoted" attribute="'quo Ted'" />
|
|
|
|
<DetectChar lookAhead="true" char="`" context="back-quoted" attribute="`back-quoted`" />
|
|
|
|
<DetectChar lookAhead="true" char=""" context="double-quoted" attribute=""double-quoted"" />
|
|
|
|
|
|
|
|
<!-- ...and ops before atoms, else "div", "is" etc. are usual atoms -->
|
|
|
|
<IncludeRules context="operator" />
|
|
|
|
<AnyChar lookAhead="true" String="&any_lower_iso;" context="id" attribute="Normal Text" />
|
|
|
|
<AnyChar lookAhead="true" String="&any_upper_under_iso;" context="var" attribute="_VARIABLE" />
|
|
|
|
<AnyChar String="&any_graphic_iso;" context="graphic" attribute="Normal Text" />
|
|
|
|
</context> <!-- atomic -->
|
|
|
|
|
|
|
|
<!-- [(mostly) "atomic" for] arith_expr := arith_op | number_expr | var
|
|
|
|
number_expr := number | built-in | user-def
|
|
|
|
|
|
|
|
This is only a goody to highlight arith ops and detect syntax errors.
|
|
|
|
If it causes problems, disable it: exchange context="arith_expr" in
|
|
|
|
contexts "atomic" and "operator" with context="#stay" -->
|
|
|
|
<context name="arith_expr_common" lineEndContext="#stay" attribute="Syntax Error" >
|
|
|
|
<IncludeRules context="layout" />
|
|
|
|
<IncludeRules context="number" />
|
|
|
|
<keyword String="arith eval ISO" context="#pop" attribute="Syntax Error" />
|
|
|
|
<keyword String="bogus ISO" context="#stay" attribute="ISO bogus" />
|
|
|
|
<keyword String="arith expr mixed ISO" context="#stay" attribute="Arithmetics" />
|
|
|
|
<keyword String="arith expr int ISO" context="#stay" attribute="Integer Arithmetics" />
|
|
|
|
<keyword String="arith expr float ISO" context="#stay" attribute="Float Arithmetics" />
|
|
|
|
<keyword String="arith ops int ISO" context="#stay" attribute="Integer Arithmetics" />
|
|
|
|
<RegExpr String="&arith_compare_iso;" context="#pop" attribute="Syntax Error" />
|
|
|
|
<RegExpr String="&arith_ops_mixed_iso;" context="#stay" attribute="Arithmetics" />
|
|
|
|
<RegExpr String="&arith_ops_int_iso;" context="#stay" attribute="Integer Arithmetics" />
|
|
|
|
<RegExpr String="&arith_ops_float_iso;" context="#stay" attribute="Float Arithmetics" />
|
|
|
|
<RegExpr String="&arith_bogus_iso;" context="#stay" attribute="ISO bogus" />
|
|
|
|
<!-- do not miss user-def'd arithmetic expr and number expr-->
|
|
|
|
<IncludeRules context="operator" />
|
|
|
|
<AnyChar lookAhead="true" String="&any_lower_iso;" context="id" attribute="Normal Text" />
|
|
|
|
<AnyChar lookAhead="true" String="&any_upper_under_iso;" context="var" attribute="_VARIABLE" />
|
|
|
|
<AnyChar String="&any_graphic_iso;" context="graphic" attribute="Normal Text" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- number := float | integer
|
|
|
|
integer := decimal | baseN | "0'" char_code
|
|
|
|
baseN := "0b" [01]+ | "0o" [0-7]+ | "0x" [0-9a-fA-F]+ -->
|
|
|
|
<context name="number" lineEndContext="#pop" attribute="Syntax Error" >
|
|
|
|
<!-- Match integers after other numbers -->
|
|
|
|
<!-- FIXME a minus may precede all numbers and is part of the number! -->
|
|
|
|
<RegExpr String="0'\\?$" context="syntax_error_cc" attribute="Syntax Error" />
|
|
|
|
<Detect2Chars char="0" char1="'" context="char_code" attribute="0'a (!use background)" />
|
|
|
|
|
|
|
|
<!-- NOT: [box] could be a postfix op <RegExpr String="0[box]$" context="#stay" attribute="Syntax Error" /> -->
|
|
|
|
<Detect2Chars char="0" char1="b" context="bin" attribute="0b1001 0o007 0xF1" />
|
|
|
|
<Detect2Chars char="0" char1="o" context="oct" attribute="0b1001 0o007 0xF1" />
|
|
|
|
<Detect2Chars char="0" char1="x" context="hex" attribute="0b1001 0o007 0xF1" />
|
|
|
|
|
|
|
|
<RegExpr String="&float1_iso;" context="#stay" attribute="2.718281E-9" />
|
|
|
|
<RegExpr String="&float2_iso;" context="#stay" attribute="2.718281E-9" />
|
|
|
|
<RegExpr String="&float3_iso;" context="#stay" attribute="2.718281E-9" />
|
|
|
|
<Int context="#stay" attribute="1 2 3 42" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!-- operator := predefined_op | dynamic_op (which we can not detect)
|
|
|
|
comma, single dot & bar are catched earlier above in term/list/curly -->
|
|
|
|
<context name="operator" lineEndContext="#pop" attribute="Syntax Error" >
|
|
|
|
<keyword String="arith eval ISO" context="arith_expr" attribute="Arithmetics" />
|
|
|
|
<keyword String="arith ops int ISO" context="#stay" attribute="other built-in operator" />
|
|
|
|
<RegExpr String="&logic_control_ops_iso;" context="#stay" attribute="Logic & Control" />
|
|
|
|
<RegExpr String="&predefined_ops_iso;" context="#stay" attribute="other built-in operator" />
|
|
|
|
<RegExpr String="&dcg_production_iso;" context="#stay" attribute="{ DCG }" />
|
|
|
|
<RegExpr String="&arith_compare_iso;" context="arith_expr" attribute="Arithmetics" />
|
|
|
|
<RegExpr String="&arith_ops_mixed_iso;" context="#stay" attribute="other built-in operator" />
|
|
|
|
<RegExpr String="&arith_ops_int_iso;" context="#stay" attribute="other built-in operator" />
|
|
|
|
<RegExpr String="&arith_ops_float_iso;" context="#stay" attribute="other built-in operator" />
|
|
|
|
<RegExpr String="&arith_bogus_iso;" context="#stay" attribute="ISO bogus" />
|
|
|
|
</context>
|
|
|
|
|
|
|
|
<!--####### END sub rules to be included - <context> never taken -->
|
|
|
|
</contexts>
|
|
|
|
|
|
|
|
<!-- The idea is to give all predicates that may be affected by the
|
|
|
|
"outside world" a common style (italic). I.e. these can throw a
|
|
|
|
permission, evaluation, representation or resource_error, even though
|
|
|
|
the program itself is 100% correct. E.g. you get_char/2 a char code 1
|
|
|
|
from a text stream (representation_error): not your mistake, but you
|
|
|
|
have to deal with that, too. -->
|
|
|
|
<itemDatas>
|
|
|
|
<itemData name="Normal Text" defStyleNum="dsNormal" spellChecking="false" />
|
|
|
|
<itemData name="_VARIABLE" defStyleNum="dsDataType" bold="false" spellChecking="false" />
|
|
|
|
<itemData name="'quo Ted'" defStyleNum="dsString" />
|
|
|
|
<itemData name="`back-quoted`" defStyleNum="dsString" italic="true" />
|
|
|
|
<!-- The standard wants double-quoted to be a list of char codes, but
|
|
|
|
e.g. GNU Prolog allows that to be set with set_prolog_flag/2 -->
|
|
|
|
<itemData name=""double-quoted"" defStyleNum="dsOthers" />
|
|
|
|
<itemData name="escaped (!use background)" defStyleNum="dsChar" spellChecking="false"
|
|
|
|
backgroundColor="#0C0C0C" selBackgroundColor="#FFFFFF" />
|
|
|
|
|
|
|
|
<!-- Numbers -->
|
|
|
|
<itemData name="2.718281E-9" defStyleNum="dsFloat" spellChecking="false" />
|
|
|
|
<itemData name="1 2 3 42" defStyleNum="dsDecVal" spellChecking="false" />
|
|
|
|
<itemData name="0b1001 0o007 0xF1" defStyleNum="dsBaseN" spellChecking="false" />
|
|
|
|
<itemData name="0'a (!use background)" defStyleNum="dsBaseN" spellChecking="false"
|
|
|
|
backgroundColor="#0C0C0C" selBackgroundColor="#FFFFFF" />
|
|
|
|
|
|
|
|
<itemData name="( ) [ ]" defStyleNum="dsNormal" spellChecking="false" />
|
|
|
|
<itemData name="{ DCG }" defStyleNum="dsKeyword" spellChecking="false" />
|
|
|
|
<itemData name="Prolog State" defStyleNum="dsFunction" bold="true" spellChecking="false" />
|
|
|
|
<itemData name="Type Checking" defStyleNum="dsDataType" spellChecking="false" />
|
|
|
|
<itemData name="Logic & Control" defStyleNum="dsKeyword" spellChecking="false" />
|
|
|
|
<itemData name="other built-in operator" defStyleNum="dsFunction" spellChecking="false" />
|
|
|
|
<itemData name="other built-in predicate" defStyleNum="dsFunction" spellChecking="false" />
|
|
|
|
|
|
|
|
<!-- Comments (2nd not used, just a hint) -->
|
|
|
|
<itemData name="% italic predicates: w/ side effects" defStyleNum="dsComment" />
|
|
|
|
<itemData name="/* !avoid leading * to have folding */" defStyleNum="dsComment" />
|
|
|
|
|
|
|
|
<!-- Predicates affected by 'outside world' -->
|
|
|
|
<itemData name="Dynamic Clause Management" defStyleNum="dsKeyword" italic="true" spellChecking="false" />
|
|
|
|
<itemData name="Stream I/O" defStyleNum="dsFunction" italic="true" spellChecking="false" />
|
|
|
|
|
|
|
|
<!-- arithmetics: get the color of ints/floats; includes ops & expressions like pi -->
|
|
|
|
<itemData name="Arithmetics" defStyleNum="dsDataType" bold="true" italic="true" spellChecking="false" />
|
|
|
|
<itemData name="Integer Arithmetics" defStyleNum="dsDecVal" bold="true" italic="true" spellChecking="false" />
|
|
|
|
<itemData name="Float Arithmetics" defStyleNum="dsFloat" bold="true" italic="true" spellChecking="false" />
|
|
|
|
<itemData name="ISO Bogus" defStyleNum="dsAlert" bold="true" italic="true" spellChecking="false" />
|
|
|
|
|
|
|
|
<!-- no way w/ buggy kate 3.8.5: get the color of default style dsError for error and terms -->
|
|
|
|
<itemData name="Guru Meditation" defStyleNum="dsNormal" spellChecking="false"
|
|
|
|
bold="true" italic="false" underline="false" color="#FF0000" selColor="#00FFFF" />
|
|
|
|
<itemData name="Guru Meditation Terms" defStyleNum="dsNormal" spellChecking="false"
|
|
|
|
bold="false" italic="true" underline="false" color="#FF0000" selColor="#00FFFF" />
|
|
|
|
<itemData name="Syntax Error" defStyleNum="dsError" spellChecking="false" />
|
|
|
|
<itemData name="Warning (!use background)" defStyleNum="dsAlert" spellChecking="false"
|
|
|
|
backgroundColor="#FC000C" selBackgroundColor="#03FFF3" />
|
|
|
|
<itemData name="%BEGIN folding region" defStyleNum="dsRegionMarker" spellChecking="false" />
|
|
|
|
</itemDatas>
|
|
|
|
</highlighting>
|
|
|
|
<general>
|
|
|
|
<keywords casesensitive="true" additionalDeliminator="$#'"`" />
|
|
|
|
<!-- let indentationsensitive folding provide it's magic -->
|
|
|
|
<folding indentationsensitive="true" />
|
|
|
|
<!-- <EmptyLines> -->
|
|
|
|
<!-- <EmptyLine regexpr="^[ /t]*(?!%).*$" /> -->
|
|
|
|
<!-- </EmptyLines> -->
|
|
|
|
<comments>
|
|
|
|
<comment name="singleLine" start="%" position="afterwhitespace" />
|
|
|
|
<comment name="multiLine" start="/*" end="*/" region="comment" />
|
|
|
|
</comments>
|
|
|
|
</general>
|
|
|
|
</language>
|
|
|
|
<!--##### NOTE [HOWTO check your syntax file, extracted from language.dtd] #####
|
|
|
|
|
|
|
|
Copyright (c) 2001 Joseph Wenninger <jowenn@kde.org>
|
|
|
|
modified (c) 2002 Anders Lund <anders@alweb.dk>
|
|
|
|
modified (c) 2003 Simon Huerlimann <simon.huerlimann@access.unizh.ch>
|
|
|
|
modified (c) 2005 Dominik Haumann <dhdev@gmx.de>
|
|
|
|
modified (c) 2008 Wilbert Berendsen <info@wilbertberendsen.nl>
|
|
|
|
|
|
|
|
You can validate your syntax files using checkXML from the development
|
|
|
|
package of tdelibs [author: i.e. tdelibs-dev]:
|
|
|
|
|
|
|
|
checkXML yourSyntax.xml [author: | grep -v 'no template matches']
|
|
|
|
|
|
|
|
If you see any 'validity error' lines, you should fix them. If you get
|
|
|
|
a lot of 'No template matches' lines, everything's just fine. You've
|
|
|
|
produced a valid syntax file!
|
|
|
|
|
|
|
|
It's also possible to use the (much faster) xmllint which comes with the
|
|
|
|
GNOME (oops:-) XML Library libxml2:
|
|
|
|
|
|
|
|
xmllint - -dtdvalid language.dtd yourSyntax.xml
|
|
|
|
(don't use a space between the two - [author: dashes/minus]
|
|
|
|
That's just because XML comments don't allow that:-(
|
|
|
|
|
|
|
|
To use your syntax file, copy it to .trinity/share/apps/katepart/syntax/ in
|
|
|
|
your home directory. You have to open a new instance of kwrite/kate to use
|
|
|
|
the new syntax file.
|
|
|
|
-->
|