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| // 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"; | |
| CodeMirror.defineSimpleMode = function(name, states) { | |
| CodeMirror.defineMode(name, function(config) { | |
| return CodeMirror.simpleMode(config, states); | |
| }); | |
| }; | |
| CodeMirror.simpleMode = function(config, states) { | |
| ensureState(states, "start"); | |
| var states_ = {}, meta = states.meta || {}, hasIndentation = false; | |
| for (var state in states) if (state != meta && states.hasOwnProperty(state)) { | |
| var list = states_[state] = [], orig = states[state]; | |
| for (var i = 0; i < orig.length; i++) { | |
| var data = orig[i]; | |
| list.push(new Rule(data, states)); | |
| if (data.indent || data.dedent) hasIndentation = true; | |
| } | |
| } | |
| var mode = { | |
| startState: function() { | |
| return {state: "start", pending: null, | |
| local: null, localState: null, | |
| indent: hasIndentation ? [] : null}; | |
| }, | |
| copyState: function(state) { | |
| var s = {state: state.state, pending: state.pending, | |
| local: state.local, localState: null, | |
| indent: state.indent && state.indent.slice(0)}; | |
| if (state.localState) | |
| s.localState = CodeMirror.copyState(state.local.mode, state.localState); | |
| if (state.stack) | |
| s.stack = state.stack.slice(0); | |
| for (var pers = state.persistentStates; pers; pers = pers.next) | |
| s.persistentStates = {mode: pers.mode, | |
| spec: pers.spec, | |
| state: pers.state == state.localState ? s.localState : CodeMirror.copyState(pers.mode, pers.state), | |
| next: s.persistentStates}; | |
| return s; | |
| }, | |
| token: tokenFunction(states_, config), | |
| innerMode: function(state) { return state.local && {mode: state.local.mode, state: state.localState}; }, | |
| indent: indentFunction(states_, meta) | |
| }; | |
| if (meta) for (var prop in meta) if (meta.hasOwnProperty(prop)) | |
| mode[prop] = meta[prop]; | |
| return mode; | |
| }; | |
| function ensureState(states, name) { | |
| if (!states.hasOwnProperty(name)) | |
| throw new Error("Undefined state " + name + " in simple mode"); | |
| } | |
| function toRegex(val, caret) { | |
| if (!val) return /(?:)/; | |
| var flags = ""; | |
| if (val instanceof RegExp) { | |
| if (val.ignoreCase) flags = "i"; | |
| val = val.source; | |
| } else { | |
| val = String(val); | |
| } | |
| return new RegExp((caret === false ? "" : "^") + "(?:" + val + ")", flags); | |
| } | |
| function asToken(val) { | |
| if (!val) return null; | |
| if (val.apply) return val | |
| if (typeof val == "string") return val.replace(/\./g, " "); | |
| var result = []; | |
| for (var i = 0; i < val.length; i++) | |
| result.push(val[i] && val[i].replace(/\./g, " ")); | |
| return result; | |
| } | |
| function Rule(data, states) { | |
| if (data.next || data.push) ensureState(states, data.next || data.push); | |
| this.regex = toRegex(data.regex); | |
| this.token = asToken(data.token); | |
| this.data = data; | |
| } | |
| function tokenFunction(states, config) { | |
| return function(stream, state) { | |
| if (state.pending) { | |
| var pend = state.pending.shift(); | |
| if (state.pending.length == 0) state.pending = null; | |
| stream.pos += pend.text.length; | |
| return pend.token; | |
| } | |
| if (state.local) { | |
| if (state.local.end && stream.match(state.local.end)) { | |
| var tok = state.local.endToken || null; | |
| state.local = state.localState = null; | |
| return tok; | |
| } else { | |
| var tok = state.local.mode.token(stream, state.localState), m; | |
| if (state.local.endScan && (m = state.local.endScan.exec(stream.current()))) | |
| stream.pos = stream.start + m.index; | |
| return tok; | |
| } | |
| } | |
| var curState = states[state.state]; | |
| for (var i = 0; i < curState.length; i++) { | |
| var rule = curState[i]; | |
| var matches = (!rule.data.sol || stream.sol()) && stream.match(rule.regex); | |
| if (matches) { | |
| if (rule.data.next) { | |
| state.state = rule.data.next; | |
| } else if (rule.data.push) { | |
| (state.stack || (state.stack = [])).push(state.state); | |
| state.state = rule.data.push; | |
| } else if (rule.data.pop && state.stack && state.stack.length) { | |
| state.state = state.stack.pop(); | |
| } | |
| if (rule.data.mode) | |
| enterLocalMode(config, state, rule.data.mode, rule.token); | |
| if (rule.data.indent) | |
| state.indent.push(stream.indentation() + config.indentUnit); | |
| if (rule.data.dedent) | |
| state.indent.pop(); | |
| var token = rule.token | |
| if (token && token.apply) token = token(matches) | |
| if (matches.length > 2 && rule.token && typeof rule.token != "string") { | |
| state.pending = []; | |
| for (var j = 2; j < matches.length; j++) | |
| if (matches[j]) | |
| state.pending.push({text: matches[j], token: rule.token[j - 1]}); | |
| stream.backUp(matches[0].length - (matches[1] ? matches[1].length : 0)); | |
| return token[0]; | |
| } else if (token && token.join) { | |
| return token[0]; | |
| } else { | |
| return token; | |
| } | |
| } | |
| } | |
| stream.next(); | |
| return null; | |
| }; | |
| } | |
| function cmp(a, b) { | |
| if (a === b) return true; | |
| if (!a || typeof a != "object" || !b || typeof b != "object") return false; | |
| var props = 0; | |
| for (var prop in a) if (a.hasOwnProperty(prop)) { | |
| if (!b.hasOwnProperty(prop) || !cmp(a[prop], b[prop])) return false; | |
| props++; | |
| } | |
| for (var prop in b) if (b.hasOwnProperty(prop)) props--; | |
| return props == 0; | |
| } | |
| function enterLocalMode(config, state, spec, token) { | |
| var pers; | |
| if (spec.persistent) for (var p = state.persistentStates; p && !pers; p = p.next) | |
| if (spec.spec ? cmp(spec.spec, p.spec) : spec.mode == p.mode) pers = p; | |
| var mode = pers ? pers.mode : spec.mode || CodeMirror.getMode(config, spec.spec); | |
| var lState = pers ? pers.state : CodeMirror.startState(mode); | |
| if (spec.persistent && !pers) | |
| state.persistentStates = {mode: mode, spec: spec.spec, state: lState, next: state.persistentStates}; | |
| state.localState = lState; | |
| state.local = {mode: mode, | |
| end: spec.end && toRegex(spec.end), | |
| endScan: spec.end && spec.forceEnd !== false && toRegex(spec.end, false), | |
| endToken: token && token.join ? token[token.length - 1] : token}; | |
| } | |
| function indexOf(val, arr) { | |
| for (var i = 0; i < arr.length; i++) if (arr[i] === val) return true; | |
| } | |
| function indentFunction(states, meta) { | |
| return function(state, textAfter, line) { | |
| if (state.local && state.local.mode.indent) | |
| return state.local.mode.indent(state.localState, textAfter, line); | |
| if (state.indent == null || state.local || meta.dontIndentStates && indexOf(state.state, meta.dontIndentStates) > -1) | |
| return CodeMirror.Pass; | |
| var pos = state.indent.length - 1, rules = states[state.state]; | |
| scan: for (;;) { | |
| for (var i = 0; i < rules.length; i++) { | |
| var rule = rules[i]; | |
| if (rule.data.dedent && rule.data.dedentIfLineStart !== false) { | |
| var m = rule.regex.exec(textAfter); | |
| if (m && m[0]) { | |
| pos--; | |
| if (rule.next || rule.push) rules = states[rule.next || rule.push]; | |
| textAfter = textAfter.slice(m[0].length); | |
| continue scan; | |
| } | |
| } | |
| } | |
| break; | |
| } | |
| return pos < 0 ? 0 : state.indent[pos]; | |
| }; | |
| } | |
| }); | |