667 lines
17 KiB
JavaScript
667 lines
17 KiB
JavaScript
// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: http://codemirror.net/LICENSE
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(function(mod) {
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if (typeof exports == "object" && typeof module == "object") // CommonJS
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mod(require("../../lib/codemirror"));
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else if (typeof define == "function" && define.amd) // AMD
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define(["../../lib/codemirror"], mod);
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else // Plain browser env
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mod(CodeMirror);
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})(function(CodeMirror) {
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"use strict";
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CodeMirror.defineMode("prolog", function(cmConfig, parserConfig) {
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function chain(stream, state, f) {
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state.tokenize = f;
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return f(stream, state);
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}
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/*******************************
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* CONFIG DATA *
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*******************************/
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var config = { quasiQuotations: false, /* {|Syntax||Quotation|} */
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dicts: false, /* tag{k:v, ...} */
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unicodeEscape: true, /* \uXXXX and \UXXXXXXXX */
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multiLineQuoted: true, /* "...\n..." */
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groupedIntegers: false /* 10 000 or 10_000 */
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};
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var quoteType = { '"': "string",
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"'": "qatom",
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"`": "bqstring"
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};
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var isSingleEscChar = /[abref\\'"nrtsv]/;
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var isOctalDigit = /[0-7]/;
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var isHexDigit = /[0-9a-fA-F]/;
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var isSymbolChar = /[-#$&*+./:<=>?@\\^~]/; /* Prolog glueing symbols chars */
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var isSoloChar = /[[\]{}(),;|!]/; /* Prolog solo chars */
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var isNeck = /^(:-|-->)$/;
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var isControlOp = /^(,|;|->|\*->|\\+|\|)$/;
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/*******************************
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* CHARACTER ESCAPES *
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*******************************/
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function readDigits(stream, re, count) {
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if ( count > 0 ) {
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while( count-- > 0 ) {
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if ( !re.test(stream.next()) )
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return false;
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}
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} else {
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while ( re.test(stream.peek()) )
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stream.next();
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}
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return true;
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}
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function readEsc(stream) {
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var next = stream.next();
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if ( isSingleEscChar.test(next) )
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return true;
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switch( next )
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{ case "u":
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if ( config.unicodeEscape )
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return readDigits(stream, isHexDigit, 4); /* SWI */
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return false;
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case "U":
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if ( config.unicodeEscape )
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return readDigits(stream, isHexDigit, 8); /* SWI */
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return false;
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case null: return true; /* end of line */
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case "c": stream.eatSpace(); return true;
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case "x": return readDigits(stream, isHexDigit, 2);
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}
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if ( isOctalDigit.test(next) ) {
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if ( !readDigits(stream, isOctalDigit, -1) )
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return false;
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if ( stream.peek() == "\\" ) /* SWI: optional closing \ */
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stream.next();
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return true;
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}
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return false;
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}
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function nextUntilUnescaped(stream, state, end) {
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var next;
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while ((next = stream.next()) != null) {
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if ( next == end && end != stream.peek() )
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{ state.nesting.pop();
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return false;
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}
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if ( next == "\\" )
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{ if ( !readEsc(stream) )
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return false;
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}
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}
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return config.multiLineQuoted;
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}
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/*******************************
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* CONTEXT NESTING *
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*******************************/
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function nesting(state) {
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return state.nesting.slice(-1)[0];
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}
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/* Called on every non-comment token */
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function setArg1(state) {
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var nest = nesting(state);
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if ( nest ) {
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if ( nest.arg == 0 ) /* nested in a compound */
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nest.arg = 1;
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else if ( nest.type == "control" )
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state.goalStart = false;
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} else
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state.goalStart = false;
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}
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function setArgAlignment(state) {
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var nest = nesting(state);
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if ( nest && !nest.alignment && nest.arg != undefined ) {
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if ( nest.arg == 0 )
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nest.alignment = nest.leftCol ? nest.leftCol+4 : nest.column+4;
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else
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nest.alignment = nest.column+1;
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}
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}
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function nextArg(state) {
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var nest = nesting(state);
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if ( nest ) {
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if ( nest.arg ) /* nested in a compound */
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nest.arg++;
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else if ( nest.type == "control" )
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state.goalStart = true; /* FIXME: also needed for ; and -> */
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} else
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state.goalStart = true;
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}
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function isControl(state) { /* our terms are goals */
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var nest = nesting(state);
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if ( nest ) {
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if ( nest.type == "control" ) {
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return true;
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}
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return false;
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} else
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return state.inBody;
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}
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// Used as scratch variables to communicate multiple values without
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// consing up tons of objects.
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var type, content;
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function ret(tp, style, cont) {
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type = tp; content = cont;
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return style;
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}
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function peekSpace(stream) { /* TBD: handle block comment as space */
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if ( stream.eol() ||
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/[\s%]/.test(stream.peek()) )
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return true;
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return false;
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}
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/*******************************
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* SUB TOKENISERS *
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*******************************/
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function plTokenBase(stream, state) {
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var ch = stream.next();
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if ( ch == "(" ) {
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if ( state.lastType == "functor" ) {
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state.nesting.push({ functor: state.functorName,
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column: stream.column(),
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leftCol: state.functorColumn,
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arg: 0
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});
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delete state.functorName;
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delete state.functorColumn;
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} else {
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state.nesting.push({ type: "control",
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closeColumn: stream.column(),
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alignment: stream.column()+4
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});
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}
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return ret("solo", null, "(");
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}
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if ( ch == "{" && state.lastType == "tag" ) {
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state.nesting.push({ tag: state.tagName,
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column: stream.column(),
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leftCol: state.tagColumn,
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arg: 0
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});
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delete state.tagName;
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delete state.tagColumn;
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return ret("dict_open", null);
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}
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if ( ch == "/" && stream.eat("*") )
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return chain(stream, state, plTokenComment);
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if ( ch == "%" ) {
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stream.skipToEnd();
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return ret("comment", "comment");
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}
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setArg1(state);
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if ( isSoloChar.test(ch) ) {
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switch ( ch )
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{ case ")":
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state.nesting.pop();
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break;
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case "]":
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state.nesting.pop();
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return ret("list_close", null);
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case "}":
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{ var nest = nesting(state);
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var type = (nest && nest.tag) ? "dict_close" : "brace_term_close";
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state.nesting.pop();
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return ret(type, null);
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}
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case ",":
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if ( stream.eol() )
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state.commaAtEOL = true;
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nextArg(state);
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/*FALLTHROUGH*/
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case ";":
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if ( isControl(state) )
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state.goalStart = true;
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break;
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case "[":
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state.nesting.push({ type: "list",
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closeColumn: stream.column(),
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alignment: stream.column()+2
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});
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return ret("list_open", null);
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break;
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case "{":
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if ( config.quasiQuotations && stream.eat("|") ) {
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state.nesting.push({ type: "quasi-quotation",
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alignment: stream.column()+1
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});
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return ret("qq_open", "qq_open");
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} else {
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state.nesting.push({ type: "curly",
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closeColumn: stream.column(),
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alignment: stream.column()+2
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});
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return ret("brace_term_open", null);
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}
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break;
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case "|":
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if ( config.quasiQuotations ) {
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if ( stream.eat("|") ) {
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state.tokenize = plTokenQuasiQuotation;
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return ret("qq_sep", "qq_sep");
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} else if ( stream.eat("}") ) {
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state.nesting.pop();
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return ret("qq_close", "qq_close");
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}
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}
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if ( isControl(state) )
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state.goalStart = true;
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break;
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}
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return ret("solo", null, ch);
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}
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if (ch == '"' || ch == "'" || ch == "`")
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{ state.nesting.push({ type: "quoted",
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alignment: stream.column()+1
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});
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return chain(stream, state, plTokenString(ch));
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}
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if ( ch == "0" ) {
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if ( stream.eat(/x/i)) {
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stream.eatWhile(/[\da-f]/i);
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return ret("number", "number");
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}
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if ( stream.eat(/o/i)) {
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stream.eatWhile(/[0-7]/i);
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return ret("number", "number");
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}
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if ( stream.eat(/'/) ) { /* 0' */
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var next = stream.next();
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if ( next == "\\" ) {
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if ( !readEsc(stream) )
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return ret("error", "error");
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}
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return ret("code", "code");
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}
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}
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if ( /\d/.test(ch) || /[+-]/.test(ch) && stream.eat(/\d/)) {
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if ( config.groupedIntegers )
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stream.match(/^\d*((_|\s+)\d+)*(?:\.\d+)?(?:[eE][+\-]?\d+)?/);
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else
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stream.match(/^\d*(?:\.\d+)?(?:[eE][+\-]?\d+)?/);
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return ret(ch == "-" ? "neg-number" :
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ch == "+" ? "pos-number" :
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"number");
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}
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if ( isSymbolChar.test(ch) ) {
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stream.eatWhile(isSymbolChar);
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var atom = stream.current();
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if ( atom == "." && peekSpace(stream) ) {
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if ( nesting(state) ) {
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return ret("fullstop", "error", atom);
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} else {
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} return ret("fullstop", "fullstop", atom);
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} else if ( isNeck.test(atom) ) {
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return ret("neck", "neck", atom);
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} else if ( isControl(state) && isControlOp.test(atom) ) {
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state.goalStart = true;
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return ret("symbol", "operator", atom);
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} else
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return ret("symbol", "operator", atom);
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}
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stream.eatWhile(/[\w_]/);
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var word = stream.current();
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if ( stream.peek() == "{" && config.dicts ) {
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state.tagName = word; /* tmp state extension */
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state.tagColumn = stream.column();
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return ret("tag", "tag", word);
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} else if ( ch == "_" ) {
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if ( word.length == 1 ) {
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return ret("var", "anon", word);
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} else {
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var sec = word.charAt(1);
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if ( sec == sec.toUpperCase() )
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return ret("var", "var-2", word);
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}
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return ret("var", "var", word);
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} else if ( ch == ch.toUpperCase() ) {
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return ret("var", "var", word);
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} else if ( stream.peek() == "(" ) {
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state.functorName = word; /* tmp state extension */
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state.functorColumn = stream.column();
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return ret("functor", "functor", word);
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} else
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return ret("atom", "atom", word);
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}
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function plTokenString(quote) {
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return function(stream, state) {
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if (!nextUntilUnescaped(stream, state, quote)) {
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state.tokenize = plTokenBase;
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if ( stream.peek() == "(" ) { /* 'quoted functor'() */
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var word = stream.current();
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state.functorName = word; /* tmp state extension */
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return ret("functor", "functor", word);
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}
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if ( stream.peek() == "{" && config.dicts ) { /* 'quoted tag'{} */
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var word = stream.current();
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state.tagName = word; /* tmp state extension */
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return ret("tag", "tag", word);
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}
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}
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return ret(quoteType[quote], quoteType[quote]);
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};
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}
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function plTokenQuasiQuotation(stream, state) {
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var maybeEnd = false, ch;
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while (ch = stream.next()) {
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if (ch == "}" && maybeEnd) {
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state.tokenize = plTokenBase;
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stream.backUp(2);
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break;
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}
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maybeEnd = (ch == "|");
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}
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return ret("qq_content", "qq_content");
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}
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function plTokenComment(stream, state) {
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var maybeEnd = false, ch;
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while (ch = stream.next()) {
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if (ch == "/" && maybeEnd) {
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state.tokenize = plTokenBase;
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break;
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}
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maybeEnd = (ch == "*");
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}
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return ret("comment", "comment");
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}
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/*******************************
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* ACTIVE KEYS *
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*******************************/
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Support if-then-else layout like this:
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goal :-
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( Condition
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-> IfTrue
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; IfFalse
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).
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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CodeMirror.commands.prologStartIfThenElse = function(cm) {
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var start = cm.getCursor("start");
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var token = cm.getTokenAt(start, true);
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if ( token.state.goalStart == true )
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{ cm.replaceSelection("( ", "end");
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return;
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}
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return CodeMirror.Pass;
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}
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CodeMirror.commands.prologStartThen = function(cm) {
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var start = cm.getCursor("start");
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var token = cm.getTokenAt(start, true);
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/* FIXME: These functions are copied from prolog.js. How
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can we reuse these?
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*/
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function nesting(state) {
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var len = state.nesting.length;
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if ( len > 0 )
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return state.nesting[len-1];
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return null;
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}
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function isControl(state) { /* our terms are goals */
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var nest = nesting(state);
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if ( nest ) {
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if ( nest.type == "control" ) {
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return true;
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}
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return false;
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} else
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return state.inBody;
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}
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if ( start.ch == token.end &&
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token.type == "operator" &&
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token.string == "-" &&
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isControl(token.state) )
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{ cm.replaceSelection("> ", "end");
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return;
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}
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return CodeMirror.Pass;
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}
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CodeMirror.commands.prologStartElse = function(cm) {
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var start = cm.getCursor("start");
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var token = cm.getTokenAt(start, true);
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if ( token.start == 0 && start.ch == token.end &&
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!/\S/.test(token.string) )
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{ cm.replaceSelection("; ", "end");
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return;
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}
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return CodeMirror.Pass;
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}
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CodeMirror.defineOption("prologKeys", null, function(cm, val, prev) {
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if (prev && prev != CodeMirror.Init)
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cm.removeKeyMap("prolog");
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if ( val ) {
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var map = { name: "prolog",
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"'('": "prologStartIfThenElse",
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"'>'": "prologStartThen",
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"';'": "prologStartElse",
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"Ctrl-L": "refreshHighlight"
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};
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cm.addKeyMap(map);
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}
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});
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});
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//Default (SWI-)Prolog operator table. To be used later to enhance the
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//offline experience.
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var ops = { "-->": { p:1200, t:"xfx" },
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":-": [ { p:1200, t:"xfx" },
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{ p:1200, t:"fx" }
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],
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"?-": { p:1200, t:"fx" },
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"dynamic": { p:1150, t:"fx" },
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"discontiguous": { p:1150, t:"fx" },
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"initialization": { p:1150, t:"fx" },
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"meta_predicate": { p:1150, t:"fx" },
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"module_transparent": { p:1150, t:"fx" },
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"multifile": { p:1150, t:"fx" },
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"thread_local": { p:1150, t:"fx" },
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"volatile": { p:1150, t:"fx" },
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";": { p:1100, t:"xfy" },
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"|": { p:1100, t:"xfy" },
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"->": { p:1050, t:"xfy" },
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"*->": { p:1050, t:"xfy" },
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",": { p:1000, t:"xfy" },
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"\\+": { p:900, t:"fy" },
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"~": { p:900, t:"fx" },
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"<": { p:700, t:"xfx" },
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"=": { p:700, t:"xfx" },
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"=..": { p:700, t:"xfx" },
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"=@=": { p:700, t:"xfx" },
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"=:=": { p:700, t:"xfx" },
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"=<": { p:700, t:"xfx" },
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"==": { p:700, t:"xfx" },
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"=\\=": { p:700, t:"xfx" },
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">": { p:700, t:"xfx" },
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">=": { p:700, t:"xfx" },
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"@<": { p:700, t:"xfx" },
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"@=<": { p:700, t:"xfx" },
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"@>": { p:700, t:"xfx" },
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"@>=": { p:700, t:"xfx" },
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"\\=": { p:700, t:"xfx" },
|
|
"\\==": { p:700, t:"xfx" },
|
|
"is": { p:700, t:"xfx" },
|
|
|
|
":": { p:600, t:"xfy" },
|
|
|
|
"+": [ { p:500, t:"yfx" },
|
|
{ p:200, t:"fy" }
|
|
],
|
|
"-": [ { p:500, t:"yfx" },
|
|
{ p:200, t:"fy" }
|
|
],
|
|
"/\\": { p:500, t:"yfx" },
|
|
"\\/": { p:500, t:"yfx" },
|
|
"xor": { p:500, t:"yfx" },
|
|
|
|
"?": { p:500, t:"fx" },
|
|
|
|
"*": { p:400, t:"yfx" },
|
|
"/": { p:400, t:"yfx" },
|
|
"//": { p:400, t:"yfx" },
|
|
"rdiv": { p:400, t:"yfx" },
|
|
"<<": { p:400, t:"yfx" },
|
|
">>": { p:400, t:"yfx" },
|
|
"mod": { p:400, t:"yfx" },
|
|
"rem": { p:400, t:"yfx" },
|
|
|
|
"**": { p:200, t:"xfx" },
|
|
"^": { p:200, t:"xfy" },
|
|
|
|
"\\": { p:200, t:"fy" }
|
|
};
|
|
|
|
|
|
/*******************************
|
|
* RETURN OBJECT *
|
|
*******************************/
|
|
|
|
return {
|
|
startState: function() {
|
|
return {
|
|
tokenize: plTokenBase,
|
|
inBody: false,
|
|
goalStart: false,
|
|
lastType: null,
|
|
nesting: new Array(), /* ([{}]) nesting FIXME: copy this */
|
|
curTerm: null, /* term index in metainfo */
|
|
curToken: null /* token in term */
|
|
};
|
|
},
|
|
|
|
token: function(stream, state) {
|
|
var nest;
|
|
|
|
if ( state.curTerm == null && parserConfig.metainfo ) {
|
|
state.curTerm = 0;
|
|
state.curToken = 0;
|
|
}
|
|
|
|
if ( stream.sol() )
|
|
delete state.commaAtEOL;
|
|
|
|
if ( state.tokenize == plTokenBase && stream.eatSpace() ) {
|
|
if ( stream.eol() )
|
|
setArgAlignment(state);
|
|
return null;
|
|
}
|
|
|
|
var style = state.tokenize(stream, state);
|
|
|
|
if ( stream.eol() )
|
|
setArgAlignment(state);
|
|
|
|
if ( type == "neck" ) {
|
|
state.inBody = true;
|
|
state.goalStart = true;
|
|
} else if ( type == "fullstop" ) {
|
|
state.inBody = false;
|
|
state.goalStart = false;
|
|
}
|
|
|
|
state.lastType = type;
|
|
|
|
if ( typeof(parserConfig.enrich) == "function" )
|
|
style = parserConfig.enrich(stream, state, type, content, style);
|
|
|
|
return style;
|
|
},
|
|
|
|
indent: function(state, textAfter) {
|
|
if (state.tokenize == plTokenComment) return CodeMirror.Pass;
|
|
|
|
var nest;
|
|
if ( (nest=nesting(state)) ) {
|
|
if ( nest.closeColumn && !state.commaAtEOL )
|
|
return nest.closeColumn;
|
|
return nest.alignment;
|
|
}
|
|
if ( !state.inBody )
|
|
return 0;
|
|
|
|
return 4;
|
|
},
|
|
|
|
theme: "prolog",
|
|
|
|
blockCommentStart: "/*", /* continuecomment.js support */
|
|
blockCommentEnd: "*/",
|
|
blockCommentContinue: " * ",
|
|
lineComment: "%",
|
|
};
|
|
});
|
|
|
|
CodeMirror.defineMIME("text/x-prolog", "prolog");
|
|
});
|
|
// CodeMirror, copyright (c) by Marijn Haverbeke and others
|
|
// Distributed under an MIT license: http://codemirror.net/LICENSE
|
|
|
|
(function(mod) {
|
|
if (typeof exports == "object" && typeof module == "object") // CommonJS
|
|
mod(require("../../lib/codemirror"));
|
|
else if (typeof define == "function" && define.amd) // AMD
|
|
define(["../../lib/codemirror"], mod);
|
|
else // Plain browser env
|
|
mod(CodeMirror);
|
|
})(function(CodeMirror) {
|
|
"use strict";
|