pro-docs/libs/codemirror/mode/xml/xml.js

// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://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)
    // Plain browser env
    else mod(CodeMirror)
})(function (CodeMirror) {
    'use strict'

    var htmlConfig = {
        autoSelfClosers: {
            area: true,
            base: true,
            br: true,
            col: true,
            command: true,
            embed: true,
            frame: true,
            hr: true,
            img: true,
            input: true,
            keygen: true,
            link: true,
            meta: true,
            param: true,
            source: true,
            track: true,
            wbr: true,
            menuitem: true,
        },
        implicitlyClosed: { dd: true, li: true, optgroup: true, option: true, p: true, rp: true, rt: true, tbody: true, td: true, tfoot: true, th: true, tr: true },
        contextGrabbers: {
            dd: { dd: true, dt: true },
            dt: { dd: true, dt: true },
            li: { li: true },
            option: { option: true, optgroup: true },
            optgroup: { optgroup: true },
            p: {
                address: true,
                article: true,
                aside: true,
                blockquote: true,
                dir: true,
                div: true,
                dl: true,
                fieldset: true,
                footer: true,
                form: true,
                h1: true,
                h2: true,
                h3: true,
                h4: true,
                h5: true,
                h6: true,
                header: true,
                hgroup: true,
                hr: true,
                menu: true,
                nav: true,
                ol: true,
                p: true,
                pre: true,
                section: true,
                table: true,
                ul: true,
            },
            rp: { rp: true, rt: true },
            rt: { rp: true, rt: true },
            tbody: { tbody: true, tfoot: true },
            td: { td: true, th: true },
            tfoot: { tbody: true },
            th: { td: true, th: true },
            thead: { tbody: true, tfoot: true },
            tr: { tr: true },
        },
        doNotIndent: { pre: true },
        allowUnquoted: true,
        allowMissing: true,
        caseFold: true,
    }

    var xmlConfig = {
        autoSelfClosers: {},
        implicitlyClosed: {},
        contextGrabbers: {},
        doNotIndent: {},
        allowUnquoted: false,
        allowMissing: false,
        allowMissingTagName: false,
        caseFold: false,
    }

    CodeMirror.defineMode('xml', function (editorConf, config_) {
        var indentUnit = editorConf.indentUnit
        var config = {}
        var defaults = config_.htmlMode ? htmlConfig : xmlConfig
        for (var prop in defaults) config[prop] = defaults[prop]
        for (var prop in config_) config[prop] = config_[prop]

        // Return variables for tokenizers
        var type, setStyle

        function inText(stream, state) {
            function chain(parser) {
                state.tokenize = parser
                return parser(stream, state)
            }

            var ch = stream.next()
            if (ch == '<') {
                if (stream.eat('!')) {
                    if (stream.eat('[')) {
                        if (stream.match('CDATA[')) return chain(inBlock('atom', ']]>'))
                        else return null
                    } else if (stream.match('--')) {
                        return chain(inBlock('comment', '-->'))
                    } else if (stream.match('DOCTYPE', true, true)) {
                        stream.eatWhile(/[\w\._\-]/)
                        return chain(doctype(1))
                    } else {
                        return null
                    }
                } else if (stream.eat('?')) {
                    stream.eatWhile(/[\w\._\-]/)
                    state.tokenize = inBlock('meta', '?>')
                    return 'meta'
                } else {
                    type = stream.eat('/') ? 'closeTag' : 'openTag'
                    state.tokenize = inTag
                    return 'tag bracket'
                }
            } else if (ch == '&') {
                var ok
                if (stream.eat('#')) {
                    if (stream.eat('x')) {
                        ok = stream.eatWhile(/[a-fA-F\d]/) && stream.eat(';')
                    } else {
                        ok = stream.eatWhile(/[\d]/) && stream.eat(';')
                    }
                } else {
                    ok = stream.eatWhile(/[\w\.\-:]/) && stream.eat(';')
                }
                return ok ? 'atom' : 'error'
            } else {
                stream.eatWhile(/[^&<]/)
                return null
            }
        }
        inText.isInText = true

        function inTag(stream, state) {
            var ch = stream.next()
            if (ch == '>' || (ch == '/' && stream.eat('>'))) {
                state.tokenize = inText
                type = ch == '>' ? 'endTag' : 'selfcloseTag'
                return 'tag bracket'
            } else if (ch == '=') {
                type = 'equals'
                return null
            } else if (ch == '<') {
                state.tokenize = inText
                state.state = baseState
                state.tagName = state.tagStart = null
                var next = state.tokenize(stream, state)
                return next ? next + ' tag error' : 'tag error'
            } else if (/[\'\"]/.test(ch)) {
                state.tokenize = inAttribute(ch)
                state.stringStartCol = stream.column()
                return state.tokenize(stream, state)
            } else {
                stream.match(/^[^\s\u00a0=<>\"\']*[^\s\u00a0=<>\"\'\/]/)
                return 'word'
            }
        }

        function inAttribute(quote) {
            var closure = function (stream, state) {
                while (!stream.eol()) {
                    if (stream.next() == quote) {
                        state.tokenize = inTag
                        break
                    }
                }
                return 'string'
            }
            closure.isInAttribute = true
            return closure
        }

        function inBlock(style, terminator) {
            return function (stream, state) {
                while (!stream.eol()) {
                    if (stream.match(terminator)) {
                        state.tokenize = inText
                        break
                    }
                    stream.next()
                }
                return style
            }
        }

        function doctype(depth) {
            return function (stream, state) {
                var ch
                while ((ch = stream.next()) != null) {
                    if (ch == '<') {
                        state.tokenize = doctype(depth + 1)
                        return state.tokenize(stream, state)
                    } else if (ch == '>') {
                        if (depth == 1) {
                            state.tokenize = inText
                            break
                        } else {
                            state.tokenize = doctype(depth - 1)
                            return state.tokenize(stream, state)
                        }
                    }
                }
                return 'meta'
            }
        }

        function lower(tagName) {
            return tagName && tagName.toLowerCase()
        }

        function Context(state, tagName, startOfLine) {
            this.prev = state.context
            this.tagName = tagName || ''
            this.indent = state.indented
            this.startOfLine = startOfLine
            if (config.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent)) this.noIndent = true
        }
        function popContext(state) {
            if (state.context) state.context = state.context.prev
        }
        function maybePopContext(state, nextTagName) {
            var parentTagName
            while (true) {
                if (!state.context) {
                    return
                }
                parentTagName = state.context.tagName
                if (!config.contextGrabbers.hasOwnProperty(lower(parentTagName)) || !config.contextGrabbers[lower(parentTagName)].hasOwnProperty(lower(nextTagName))) {
                    return
                }
                popContext(state)
            }
        }

        function baseState(type, stream, state) {
            if (type == 'openTag') {
                state.tagStart = stream.column()
                return tagNameState
            } else if (type == 'closeTag') {
                return closeTagNameState
            } else {
                return baseState
            }
        }
        function tagNameState(type, stream, state) {
            if (type == 'word') {
                state.tagName = stream.current()
                setStyle = 'tag'
                return attrState
            } else if (config.allowMissingTagName && type == 'endTag') {
                setStyle = 'tag bracket'
                return attrState(type, stream, state)
            } else {
                setStyle = 'error'
                return tagNameState
            }
        }
        function closeTagNameState(type, stream, state) {
            if (type == 'word') {
                var tagName = stream.current()
                if (state.context && state.context.tagName != tagName && config.implicitlyClosed.hasOwnProperty(lower(state.context.tagName))) popContext(state)
                if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) {
                    setStyle = 'tag'
                    return closeState
                } else {
                    setStyle = 'tag error'
                    return closeStateErr
                }
            } else if (config.allowMissingTagName && type == 'endTag') {
                setStyle = 'tag bracket'
                return closeState(type, stream, state)
            } else {
                setStyle = 'error'
                return closeStateErr
            }
        }

        function closeState(type, _stream, state) {
            if (type != 'endTag') {
                setStyle = 'error'
                return closeState
            }
            popContext(state)
            return baseState
        }
        function closeStateErr(type, stream, state) {
            setStyle = 'error'
            return closeState(type, stream, state)
        }

        function attrState(type, _stream, state) {
            if (type == 'word') {
                setStyle = 'attribute'
                return attrEqState
            } else if (type == 'endTag' || type == 'selfcloseTag') {
                var tagName = state.tagName,
                    tagStart = state.tagStart
                state.tagName = state.tagStart = null
                if (type == 'selfcloseTag' || config.autoSelfClosers.hasOwnProperty(lower(tagName))) {
                    maybePopContext(state, tagName)
                } else {
                    maybePopContext(state, tagName)
                    state.context = new Context(state, tagName, tagStart == state.indented)
                }
                return baseState
            }
            setStyle = 'error'
            return attrState
        }
        function attrEqState(type, stream, state) {
            if (type == 'equals') return attrValueState
            if (!config.allowMissing) setStyle = 'error'
            return attrState(type, stream, state)
        }
        function attrValueState(type, stream, state) {
            if (type == 'string') return attrContinuedState
            if (type == 'word' && config.allowUnquoted) {
                setStyle = 'string'
                return attrState
            }
            setStyle = 'error'
            return attrState(type, stream, state)
        }
        function attrContinuedState(type, stream, state) {
            if (type == 'string') return attrContinuedState
            return attrState(type, stream, state)
        }

        return {
            startState: function (baseIndent) {
                var state = { tokenize: inText, state: baseState, indented: baseIndent || 0, tagName: null, tagStart: null, context: null }
                if (baseIndent != null) state.baseIndent = baseIndent
                return state
            },

            token: function (stream, state) {
                if (!state.tagName && stream.sol()) state.indented = stream.indentation()

                if (stream.eatSpace()) return null
                type = null
                var style = state.tokenize(stream, state)
                if ((style || type) && style != 'comment') {
                    setStyle = null
                    state.state = state.state(type || style, stream, state)
                    if (setStyle) style = setStyle == 'error' ? style + ' error' : setStyle
                }
                return style
            },

            indent: function (state, textAfter, fullLine) {
                var context = state.context
                // Indent multi-line strings (e.g. css).
                if (state.tokenize.isInAttribute) {
                    if (state.tagStart == state.indented) return state.stringStartCol + 1
                    else return state.indented + indentUnit
                }
                if (context && context.noIndent) return CodeMirror.Pass
                if (state.tokenize != inTag && state.tokenize != inText) return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0
                // Indent the starts of attribute names.
                if (state.tagName) {
                    if (config.multilineTagIndentPastTag !== false) return state.tagStart + state.tagName.length + 2
                    else return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1)
                }
                if (config.alignCDATA && /<!\[CDATA\[/.test(textAfter)) return 0
                var tagAfter = textAfter && /^<(\/)?([\w_:\.-]*)/.exec(textAfter)
                if (tagAfter && tagAfter[1]) {
                    // Closing tag spotted
                    while (context) {
                        if (context.tagName == tagAfter[2]) {
                            context = context.prev
                            break
                        } else if (config.implicitlyClosed.hasOwnProperty(lower(context.tagName))) {
                            context = context.prev
                        } else {
                            break
                        }
                    }
                } else if (tagAfter) {
                    // Opening tag spotted
                    while (context) {
                        var grabbers = config.contextGrabbers[lower(context.tagName)]
                        if (grabbers && grabbers.hasOwnProperty(lower(tagAfter[2]))) context = context.prev
                        else break
                    }
                }
                while (context && context.prev && !context.startOfLine) context = context.prev
                if (context) return context.indent + indentUnit
                else return state.baseIndent || 0
            },

            electricInput: /<\/[\s\w:]+>$/,
            blockCommentStart: '<!--',
            blockCommentEnd: '-->',

            configuration: config.htmlMode ? 'html' : 'xml',
            helperType: config.htmlMode ? 'html' : 'xml',

            skipAttribute: function (state) {
                if (state.state == attrValueState) state.state = attrState
            },

            xmlCurrentTag: function (state) {
                return state.tagName ? { name: state.tagName, close: state.type == 'closeTag' } : null
            },

            xmlCurrentContext: function (state) {
                var context = []
                for (var cx = state.context; cx; cx = cx.prev) context.push(cx.tagName)
                return context.reverse()
            },
        }
    })

    CodeMirror.defineMIME('text/xml', 'xml')
    CodeMirror.defineMIME('application/xml', 'xml')
    if (!CodeMirror.mimeModes.hasOwnProperty('text/html')) CodeMirror.defineMIME('text/html', { name: 'xml', htmlMode: true })
})