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Diffstat (limited to 'kate/data/prolog.xml')
| -rw-r--r-- | kate/data/prolog.xml | 1308 |
1 files changed, 1094 insertions, 214 deletions
diff --git a/kate/data/prolog.xml b/kate/data/prolog.xml index 732048845..e7fdde3db 100644 --- a/kate/data/prolog.xml +++ b/kate/data/prolog.xml @@ -1,232 +1,1112 @@ <?xml version="1.0" encoding="UTF-8"?> -<!DOCTYPE language SYSTEM "language.dtd"> -<language name="Prolog" version="1.05" kateversion="2.1" section="Sources" extensions="*.prolog" mimetype="text/x-prolog"> +<!-- [Purpose & Copyright] + + Highlight ISO-Prolog texts or template/include for Prolog dialects + based on the ISO standard. + + Includes detection of DCG since it is 'hooked' in the ISO standard. + Uses text style "Warning/ISO-bogus" where portability is likely to + fail. + + This file is part of TDE's kate project. + + copyright : (C) 2012 by Torsten Eichstädt + + ********************************************************************** + * This library is free software; you can redistribute it and/or * + * modify it under the terms of the GNU Library General Public * + * License as published by the Free Software Foundation; either * + * version 2 of the License, or (at your option) any later version. * + * * + * This library is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * + * Library General Public License for more details. * + * * + * You should have received a copy of the GNU Library General Public * + * License along with this library; if not, write to the * + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * + * Boston, MA 02110-1301, USA. * + ********************************************************************** +--> +<!DOCTYPE language SYSTEM "language.dtd" +[<!-- [Regular Expressions, Character Classes & Important Tokens] +E.g. the dot "." has so many different meanings (i.e. in an RegExpr 'any char', +'fullstop' of a clause, etc. pp.) that I decided it's usefull to write these out +to make the rules more expressive. --> + +<!-- RegExpr for graphic tokens. Comment start "/*" is catched earlier. --> + <!ENTITY gr_char_iso "[#$&*+\-./:<=>?@^~\\]"> + +<!-- RegExpr: The highlighting engine always strips newline, so this ok: --> + <!ENTITY any_nw "[^ \t]"> + <!ENTITY any "."> + +<!-- RegExpr: we want to highlight some graphic tokens: Logic & Control + fullstop shall not be falsely detected if it is actually a list functor + comma is catched extra to highlight it as "Normal Text" in an arg_seq + (and the cut "!" is NOT an op) --> + <!ENTITY fullstop_iso "\.(?!(\(|&gr_char_iso;))"> + <!ENTITY logic_control_ops_iso "(;|->|\\\+|:-|=|\\=)(?!&gr_char_iso;)"> + + <!-- RegExpr: DCG (not my idea it is not reversed and named 'reduction') --> + <!ENTITY dcg_production_iso "-->(?!&gr_char_iso;)"> + + <!-- RegExpr: partitioning of arithmetic operators: + - the 1st "arith_compare" always demand arithmetic evaluation + => highlight as "Arithmetics". + - the 2nd only at the right side of "is" or when an arith_compare applies. + They are used in other contexts as well, e.g. traditionally A-B is used + for 'a pair of something', the "^" in bagof/3 and setof/3. + => highlight as "Arithmetics" only in an arith_expr. + - the 3rd are true ISO bogus: it is not specified whether it is arithmetic + or logical shift, and for bitwise AND, OR and NEG the integer format is + unspecified => not portable, depend on Prolog implementation. --> + <!ENTITY arith_compare_iso "(=:=|=\\=|=<|<|>=|>)(?!&gr_char_iso;)"> + <!ENTITY arith_ops_mixed_iso "(\+|-|\*|\^)(?!&gr_char_iso;)"> + <!ENTITY arith_ops_int_iso "//(?!&gr_char_iso;)"> + <!ENTITY arith_ops_float_iso "(/|\*\*)(?!&gr_char_iso;)"> + <!ENTITY arith_bogus_iso "(/\\|\\/|\\|<<|>>)(?!&gr_char_iso;)"> + + <!-- RegExpr: other predefined operators --> + <!ENTITY predefined_ops_iso "(\?-|==|\\==|@=<|@<|@>=|@>|=\.\.|@|:)(?!&gr_char_iso;)"> + + <!-- We treat a number as float if it includes a decimal dot or exponent --> + <!ENTITY float3_iso "[0-9]+E[+\-]?[0-9]+"> + <!ENTITY float2_iso "[0-9]+\.[0-9]+"> + <!ENTITY float1_iso "[0-9]+\.[0-9]+E[+\-]?[0-9]+"> + +<!-- RegExpr for esc'd char code in quoted 'strings' e.g. "\007\" --> + <!ENTITY esc_oct_iso "\\[0-7]+\\"> + <!ENTITY esc_hex_iso "\\x[a-fA-F0-9]+\\"> + +<!-- Char classes for AnyChar, NOT RegExpr: no esc seqs, ranges, etc. pp. here! + Used to avoid expensive RegExpr whenever possible. --> + <!-- Not needed: any_alnum_under_iso: use "DetectIdentifier" instead --> + <!ENTITY any_lower_iso "abcdefghijklmnopqrstuvwxyz"> + <!ENTITY any_upper_under_iso "ABCDEFGHIJKLMNOPQRSTUVWXYZ_"> + <!ENTITY any_bin_iso "01"> + <!ENTITY any_oct_iso "01234567"> + <!ENTITY any_dec_iso "0123456789"> + <!ENTITY any_hex_iso "0123456789abcdefABCDEF"> + <!ENTITY any_graphic_iso "#$&*+-./:<=>?@^~\"> + + <!-- Common esc seq in quoted & char code (after "0'"). + Tab is handled extra. Esc'd newline is catched earlier. --> + <!ENTITY any_esc_iso "abfnrtv\'`"]"> + + <!ENTITY dot "."> + + <!-- Some solo chars for DetectChar --> + <!ENTITY comma ","> + <!ENTITY cut "!"> + <!ENTITY bar "|"> + <!ENTITY tab " "> + <!ENTITY bs "\"> +]> +<language name="Prolog" section="Sources" + version="1.2" kateversion="2.5" + mimetype="text/x-prolog" + extensions="*.prolog;*.dcg;*.pro" + author="Torsten Eichstädt (torsten.eichstaedt@web.de)" + license="LGPL"> + +<!-- [Terminology & Abbreviations In The Comments] + - Literal text is in double quotes "like this", single quotes sometimes used + for a 'terminus technicus'. + - "w/", "w/o", "s/t" mean 'with', 'without', and "sometimes" resp. + - Use "brace" instead of 'bracket'/'parenthesis' for any of "()[]{}" + - Specify "round", "list/squared", "curly", "opening" and "closing" brace. + - "quote/quoted/string" mean any of single-, double-, or back-quote(d) + - "seq" sequence, "nl" newline, "bs" backslash, "q" quote(d), "cc" char code + - "KISS" Keep it simple, stupid! (be pragmatic) + - "style" = "attribute" (the applied text style) + - Keep comments as short as possible and as descriptive as neccessary LOL +--> +<!-- [Documentation, Bugs, Limitations & Solutions, TODOs] +################################################################################ +All bugs except three by the author. !FOLD THIS AWAY if long comments annoy you. + +BUG - Nobody's perfect - If I knew about the bug you found, it would have been + fixed already. + one- Takes a "shebang" at the start of text on other than the 1st line (Kate). + two- Indentation-based folding is not reliable. + three- Folding is sometimes broken (Kate?). See SOLUTIONS below. + 4 - An optional leading sign is not highlighted as part of the number. + 5 - A float w/o fractional part and exponent is highlighted as an integer. + 6 - Detection of whitespace may not be 100% correct, only space/tab/newline. + 7 - Handling inside arithmetic expressions might not be 100%. See "AL GUSTO". + inf- see TODOs below. + +LIMITS of this parser + - Highlighting of syntax errors is as intuitive as possible, i.e. for an + invalid newline highlight the last token before and leading white of the + next line - but that's not always possible. Use your built-in problem + solver (between your ears) when you do not know what the exact error is. + - The parser knows nothing about currently defined dynamic ops, but has to + respect possible definitions of dynamic ops. That's why: + - Any sequence of 'graphic chars' (_incl. those containing a dot_) is taken + as _one_ graphic token, and not - as you might expect - your user-defined + operator followed by fullstop (or sequence of ops). + - A single dot in the outmost term of a clause is taken as a fullstop, even + if it is actually a user-defined operator. + - Else, a single dot is highlighted as "Warning" because it might be a + user-def'd op (usually an error, but can not decide w/o current_op/3). + - Detection of the fullstop relies upon the usual semantics of braces. + - Axioms of folding capabilities are: the literal fullstop as stop symbol + and the usual semantics of braces w/ pairs of opening and closing brace. + ?- period. +uncaught exception: error(existence_error(procedure,current_op/3),highlight/2) + +SOLUTIONS + - Help the parser by puting whitespace (space/tab/nl) here and there, espc. + after the fullstop, or use quotes; e.g. '/*' does not begin a comment, + neither does '%', and ***'.' can be two operators. + Functored syntax should always do, e.g. */*(X,Y) is valid (and does not + begin a comment). + - Folding: s/t moving the mouse slightly below the marker shows what you + want, s/t an empty line helps (or removing an empty line), when it's + removed regions stay ok, or break auto-folding w/ non-white @begin of + line. Try a newer kate version. + +AL GUSTO (simple changes): + - Change classification of built-in predicates: adjust the <list> below. + - Reminder for other changes: solo chars - DetectChar, graphic - RegExpr. + - bar "|" (solo) is highlighted as "other built-in operator" in lists, else + "Normal Text". You may safely remove/comment out the rules in contexts + "term/list/curly" below if you add in in context "operator" or "atomic". + If it shall be part of user-defined ops, it has to be added to "gr_char", + and a few rules need adjustment. Search for "&bar;". You may then safely + add it to "predefined_ops" above (don't forget to escape it). + - cut "!" (solo) can be adjusted like the bar. + - comma "," (solo) is "Normal Text" in lists, else "Logic & Control". You + may safely remove/comment out the rules in "term/nested/list/curly" below + and handle it in the context "operator". + - Disable arith_expr: replace "context="arith_expr"" w/ "context="#stay"" + in the rules in contexts "atomic" and "operator" (two or three occurences). + - Disable indentation-based folding: in the section "general"@EOF:"folding". + - General guidelines: Be nice to slow/old hardware: avoid RegExpr (start w/ + a RegExpr, test, then find a replacement), else match a RegExpr as late as + possible - it's expensive, a context switch is relatively cheap. + Eat as much text as possible in one run, e.g. in comments and quoted we + use "DetectIdentifier", else the engine would try all rules of the context + (w/ failure) and eat only one char on each run. + If your modification is kind of general, upload it and drop me a note. + + The simplified syntax below should highlight 99.999% of ISO-Prolog texts +correctly, as well as many non-ISO Prolog texts. + Else modify this file. Save with new name in your HOME directory to +.kde/share/apps/katepart/syntax/prolog-xy.xml You may read the NOTE at the end +of this file. WARNING: Be careful, though: the highlighting works according to +it's program code, not neccessarily it's documentation... + +DONE- Parse (m)any (!) conforming Prolog texts w/ correct highlighting (LIMITS) + - Parse any erratic text w/o crash or endless loops and highlight errors + - Folding for multiline comments, clauses, nested terms, and quoted (LIMITS) + - Folding inside comments and of 1-line comments and clauses: indentation- + based like in Python, e.g. + my_pred(a). % w/ marker@left (western style; depends on your settings) + my_pred(b). % you can fold + my_pred(c). % these lines + Inside clauses (i.e. context "term" and below) only explicit folding for + braces and quotes applies, except comments. I did not find a better + solution, since the engine does not provide lookahead to the next line. + - Additionally, folding with %BEGIN ... %END (iff 1st nonwhite of the line). + - Classify built-ins (YMMV) for different highlighting, mainly: + - w/ side effects from 'outside world' (arithmetics, stream I/O,...) + - w/o side effects, only depend on user's program ('internal world') + - program logic & control constructs + - altering the clause knowledge base or Prolog state + - integer/float/mixed arithmetics, so one can see the type of the result + - Iff it's an arithmetic expression; else arith ops and built-ins + are highlighted normal. + - Incl. Sep2012 DRAFT Technical Corrigendum 2: Prolog - Part 1: General Core + - Incl. honourable Richard O'Keefe's remarks as warnings as "ISO bogus". + - Detect 'shebang' shell scripts, see BUGs + - Includes alert_indent.xml to highlight alert keywords in comments. + - Dot "." may be an _unquoted_ user-defined operator in nested terms (but is + highlighted as "Warning" 'cause it's more likely a typo than an user-def'd + op) and is only taken as fullstop and highlighted as "Logic & Control" in + the outmost term of a clause. + - Über-correct handling of quoted, escape seqs and "0'" (char code integer): + - detection of valid/invalid newline in quoted 'strings'. + - highlight whitespace after esc'd newline in quoted so it differs from + whitespace contained in the quoted 'string'. + - Highlight esc'd tab and tab in quoted as "Warning" because some text + editors may convert them to space and it is easy to use "\t" instead. + - Preliminary: most names end w/ ISO; prepared to be included in syntax + files adapted for Prolog dialects. + +FIXME When katepart can supply line numbers, fix the "shebang" rule. + +TODO sorted by priority + 1 - [always] Cruise over all FIXMEs. + 2 - Check if comma, cut & bar are really solo chars (where's the red book?). + 3 - Check final Technical Corrigendum 2: Prolog - Part 1: General Core + 4 - Buy ISO Prolog standard - Part 2: Modules. Likely only keywords. Need it + anyway. + 5 - Make this strict-ISO and a "Prolog (portable)" that includes this file. + 6 - Likewise, adopt for GNU & SWI Prolog and others. + 8 - keywords 'phrase', streams depricated, etc.pp. ==> Prolog (portable). + 9 - Likewise: shebang ==> Prolog (portable). + 10 - Check if shebang can span multiple (escaped) lines. + 11 - Check: all KB altering preds can have side effects (via resource_error)? + 12 - For next two TODOs: ask katepart dev to provide lookahead to the next line + 13 - Folding for consecutive one-line comments [easy? HARD! Impossible.] + 14 - Likewise, folding for consecutive clauses [HARD! Impossible.] + I can live w/ indentation-based folding as a workaround. Not 100%, but ok. + 15 - +arg_seq (and list): "," as normal text: Detect name( [no layout; easy] + 16 - +Classify meta predicates. + 18 - The dollar "$" is commonly used as the 1st char of (unquoted?) atoms to + indicate 'internal mode', e.g. to declare a predicate as compile-in. + Does this mean the dollar is used as if it were a prefix op or is it part + of the atom? Would be easy to implement. + 19 - Bug #4: could be partly fixed, some built-ins take only float not integer. + 20 - Bug them to better document weakDeliminators (and rename to delimiter ;) + 21 - Adjust doxygen syntax for Prolog (e.g. adapt doxygen-lua), and include it. + 22 - Check if vertical tab is white/layout; are there more non-printables? +################################################################################ +--> +<!-- [Facts & Implications Of The ISO Standard, as a reminder] + - 'layout' is whitespace (space/tab/newline) and/or comments. + - Braces (any of "(){}[]"), exclamation "!" (aka 'cut'), 'bar' "|", degree "°", + paragraph "§" and percent "%" are NOT 'graphic' chars, but 'solo' chars. + - The 'bar' "|" may be a predefined operator, and then a user-def'd op, too. + - There can only be (at most) one bar "|" in a list (written inside "[]"), and + no commata after it (after the bar). + - Graphic tokens are atoms (and solo chars are one-char atoms?). + - "{}" and "[]" are 'special atoms' (likewise "()"?). + - "{}" and "[]" shall not be operators (but round or single braces may be?). + - The fullstop "." is not a predefined postfix operator, and + - the list functor "." is not a predefined prefix operator. + - An unquoted graphic token shall not begin with "/*". + - Multiline comments shall not be nested. + - Floats are NOT written with lowercase "e" (i.e. not neccessarily an error if + e.g. "e" is a pre- or user-defined expr or op and the whole term is valid), + - and the fractional part and exponent of floats are optional (any and both). + - A leading minus immediately preceding a number is optional for all numbers + and then part of the number and not a prefix operator (currently beeing + 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> - <list name="keywordl"> - <item> abstract </item> - <item> align </item> - <item> as </item> - <item> and </item> - <item> class </item> - <item> clauses </item> - <item> constants </item> - <item> database </item> - <item> determ </item> - <item> domains </item> - <item> elsedef </item> - <item> endclass </item> - <item> enddef </item> - <item> erroneous </item> - <item> facts </item> - <item> failure </item> - <item> global </item> - <item> goal </item> - <item> if </item> - <item> ifdef </item> - <item> ifndef </item> - <item> implement </item> - <item> include </item> - <item> language </item> - <item> multi </item> - <item> nocopy </item> - <item> nondeterm </item> - <item> object </item> - <item> or </item> - <item> procedure </item> - <item> protected </item> - <item> predicates </item> - <item> reference </item> - <item> single </item> - <item> static </item> - <item> struct </item> - <item> this </item> - </list> + <!-- 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> - <list name="keywordu"> - <item> ABSTRACT </item> - <item> ALIGN </item> - <item> AS </item> - <item> AND </item> - <item> CLASS </item> - <item> CLAUSES </item> - <item> CONSTANTS </item> - <item> DATABASE </item> - <item> DETERM </item> - <item> DOMAINS </item> - <item> ELSEDEF </item> - <item> ENDCLASS </item> - <item> ENDDEF </item> - <item> ERRONEOUS </item> - <item> FACTS </item> - <item> FAILURE </item> - <item> GLOBAL </item> - <item> GOAL </item> - <item> IF </item> - <item> IFDEF </item> - <item> IFNDEF </item> - <item> IMPLEMENT </item> - <item> INCLUDE </item> - <item> LANGUAGE </item> - <item> MULTI </item> - <item> NOCOPY </item> - <item> NONDETERM </item> - <item> OBJECT </item> - <item> OR </item> - <item> PROCEDURE </item> - <item> PROTECTED </item> - <item> PREDICATES </item> - <item> REFERENCE </item> - <item> SINGLE </item> - <item> STATIC </item> - <item> STRUCT </item> - <item> THIS </item> + <!-- 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> - <list name="special"> - <item> assert </item> - <item> asserta </item> + <!-- including directive "dynamic" --> + <list name="dyn clause mgmt ISO"> + <item> dynamic </item> + <item> asserta </item> <item> assertz </item> - <item> bound </item> - <item> chain_inserta </item> - <item> chain_insertafter </item> - <item> chain_insertz </item> - <item> chain_terms </item> - <item> consult </item> - <item> db_btrees </item> - <item> db_chains </item> - <item> fail </item> - <item> findall </item> - <item> format </item> - <item> free </item> - <item> msgrecv </item> - <item> msgsend </item> - <item> nl </item> - <item> not </item> - <item> readterm </item> - <item> ref_term </item> - <item> retract </item> <item> retractall </item> - <item> save </item> - <item> term_bin </item> - <item> term_replace </item> - <item> term_str </item> - <item> trap </item> - <item> write </item> - <item> writef </item> - </list> + <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> - <list name="compiler"> - <item> bgidriver </item> - <item> bgifont </item> - <item> check_determ </item> - <item> code </item> - <item> config </item> - <item> diagnostics </item> - <item> error </item> - <item> errorlevel </item> - <item> heap </item> - <item> gstacksize </item> - <item> nobreak </item> - <item> nowarnings </item> - <item> printermenu </item> - <item> project </item> - </list> + <!--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> - <list name="arith"> - <item> mod </item> - <item> div </item> - <item> abs </item> - <item> exp </item> - <item> ln </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> sqrt </item> - <item> round </item> - <item> trunc </item> - <item> val </item> - <item> cos </item> - <item> sin </item> - <item> tan </item> - <item> arctan </item> - <item> random </item> - <item> randominit </item> + <item> float </item> + <item> float_fractional_part </item> + <item> float_integer_part </item> </list> - <list name="basetype"> - <item> char </item> - <item> real </item> - <item> string </item> - <item> symbol </item> - <item> byte </item> - <item> sbyte </item> - <item> short </item> - <item> ushort </item> - <item> word </item> - <item> integer </item> - <item> unsigned </item> - <item> dword </item> - <item> long </item> - <item> ulong </item> - <item> binary </item> - <item> ref </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> - <list name="keywords"> - <item> true </item> - <item> false </item> - </list> + <!-- 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> - <contexts> - <context name="normal" attribute="Symbol" lineEndContext="#stay"> - <keyword attribute="Keyword" context="#stay" String="keywordl"/> - <keyword attribute="Keyword" context="#stay" String="keywordu"/> - <keyword attribute="Arithmetic" context="#stay" String="arith"/> - <keyword attribute="Keyword" context="#stay" String="compiler"/> - <keyword attribute="Keyword" context="#stay" String="special"/> - <keyword attribute="Data Type" context="#stay" String="basetype"/> - <RegExpr String = "[A-Z_][A-Za-z0-9_]*" attribute = "Variable" context="#stay"/> - <RegExpr String = "[a-z][A-Za-z0-9_]*" attribute = "Identifier" context="#stay"/> - <DetectChar attribute="Comment" context="comment" char="%"/> - <Detect2Chars attribute="Comment" context="comment region" char="/" char1="*"/> - <Int attribute="Integer" context="#stay" /> - <DetectChar attribute="String" context="string" char=""" /> - <DetectChar attribute="String" context="string2" char="'" /> - <AnyChar attribute="Symbol" context="#stay" String="~!^*()-+=[]|\:;,./?&<>" /> - </context> - <context name="comment" attribute="Comment" lineEndContext="#pop" /> - <context name="string" attribute="String" lineEndContext="#stay" > - <HlCStringChar attribute="String" context="#stay" /> - <DetectChar attribute="String" context="#pop" char=""" /> - </context> - <context name="string2" attribute="String" lineEndContext="#stay"> - <HlCChar attribute="String" context="#stay" /> - <DetectChar attribute="String" context="#pop" char="'" /> - </context> - <context name="comment region" attribute="Comment" lineEndContext="#stay"> - <Detect2Chars attribute="Comment" context="#pop" char="*" char1="/" /> - </context> - </contexts> - <itemDatas> - <itemData name="Normal Text" defStyleNum="dsNormal" /> - <itemData name="Keyword" defStyleNum="dsKeyword" /> - <itemData name="Data Type" defStyleNum="dsDataType" /> - <itemData name="Comment" defStyleNum="dsComment" /> - <itemData name="Integer" defStyleNum="dsDecVal" /> - <itemData name="Symbol" defStyleNum="dsNormal" /> - <itemData name="String" defStyleNum="dsString"/> - <itemData name="Identifier" defStyleNum="dsNormal"/> - <itemData name="Variable" defStyleNum="dsOthers"/> - <itemData name="Arithmetic" defStyleNum="dsKeyword" /> - - </itemDatas> + <!-- 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" /> + <RegExpr String="&fullstop_iso;" context="#stay" attribute="Warning (!use background)" /> + <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" /> + <RegExpr String="&fullstop_iso;" context="#stay" attribute="Warning (!use background)" /> + <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 occurences) --> + <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="&fullstop_iso;" context="#stay" attribute="Warning (!use background)" /> + <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" > + <DetectIdentifier context="#pop" attribute="Normal Text" /> + </context> + <context name="var" attribute="Syntax Error" > + <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="1" /> - <comments> - <comment name="singleLine" start="%" /> - <comment name="multiLine" start="/*" end="*/" /> - </comments> - - </general> + <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 .kde/share/apps/katepart/syntax/ in + your home directory. You have to open a new instance of kwrite/kate to use + the new syntax file. +--> |