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exolve-m.js
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/*
MIT License
Copyright (c) 2019 Viresh Ratnakar
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
The latest code and documentation for Exolve can be found at:
https://github.com/viresh-ratnakar/exolve
*/
/**
* The Exolve code creates only the following names at global scope:
*
* - Exolve
* - createExolve
* - createPuzzle (deprecated).
* - exolvePuzzles
*
* - The most generic way to create a puzzle is with "new Exolve(...)".
* - The createExolve() function is a covenient wrapper.
* - The createExolve() function looks for and calls the function
* customizeExolve() if it exists (passing it the created puzzle).
* - The createPuzzle() function is similar to createExolve(), and
* is deprecated (as the name may conflict with some other code).
* - All HTML ids/class names begin with "xlv"
*/
/**
* This is the global object in which *all* Exolve puzzles rendered on a single
* web page are stored as properties, with the puzzle IDs being the keys.
*/
var exolvePuzzles;
/**
* Constructor to create an Exolve puzzle.
*
* puzzleText contains the puzzle specs.
* containerId is the optional HTML id of the container element in which you
* want to create this puzzle. If empty, the puzzle is created inside
* the element with id "exolve" if it exists (and its id is changed to
* exolve<N> in that case, where <N> is the index of this puzzle among
* all the pages on the page). If containerId is empty and there is no
* element with id "exolve", the the puzzle is created at the end of the
* web page.
* customized is an optional function that will get called after the puzzle
* is set up. The Exolve object will be passed to the function.
* addStateToUrl should be set to false only if you do *not* want to save
* the puzzle state in the URL (the puzzle state is also saved in a
* cookie, but that does not work for local files). Unless you are
* embedding the puzzle in an iframe for some reason, set this to true.
* visTop should be set to the height of any sticky/fixed position elements
* at the top of the page (normally just 0).
* maxDim If non-zero, use this as the suggested max size of the container
* in px.
*/
function Exolve(puzzleText,
containerId="",
customizer=null,
addStateToUrl=true,
visTop=0,
maxDim=0) {
this.VERSION = 'Exolve v0.94 October 4 2020'
this.puzzleText = puzzleText
this.containerId = containerId
this.customizer = customizer
this.addStateToUrl = addStateToUrl
this.gridWidth = 0
this.gridHeight = 0
this.credits = []
this.questionTexts = []
// Each nina will be an array containing location [i,j] pairs and/or span
// class names.
this.ninas = []
// For span-class-specified ninas, ninaClassElements[] stores the elements
// along with the colours to apply to them when showing the ninas.
this.ninaClassElements = []
this.grid = []
this.clues = {}
this.cellColours = []
this.submitURL = null
this.submitKeys = []
this.hasDgmlessCells = false
this.hasUnsolvedCells = false
this.hasReveals = false
this.hasAcrossClues = false
this.hasDownClues = false
this.hasNodirClues = false
// Clues labeled non-numerically (like [A] a clue...) use this to create a
// unique clueIndex.
this.nextNonNumId = 1
this.offNumClueIndices = {}
// Objects with keys being JSON arrays of cells, mapping to orphan clues
// they belong to, for revealing.
this.cellsToOrphan = {}
this.szCellsToOrphan = 0
this.visTop = visTop
this.maxDim = maxDim
this.MAX_GRID_SIZE = 100
this.GRIDLINE = 1
this.BAR_WIDTH = 3
this.BAR_WIDTH_BY2 = 2
this.SEP_WIDTH = 2
this.SEP_WIDTH_BY2 = 1.5
this.NUMBER_START_X = 2
this.answersList = []
this.revelationList = []
this.inClueAnnoReveals = {}
// State of navigation
this.currRow = -1
this.currCol = -1
this.currDir = 'A'
this.currClueIndex = null
this.usingGnav = false
this.lastOrphan = null
this.activeCells = [];
this.activeClues = [];
this.showingNinas = false
// Couple of vars to get long click on check/reveal to use just a cell.
this.cellLightToggleTimer = null;
this.cellNotLight = false;
this.numCellsToFill = 0
this.numCellsFilled = 0
this.numCellsPrefilled = 0
this.allClueIndices = []
this.DEFAULT_ORPHAN_LEN = 15
this.BLOCK_CHAR = '⬛';
// We have special meanings for 0 (unfilled) and 1 (block in diagramless cell)
// in solution states. For crosswords with digits, we use these to stand for
// 0 and 1 respectively, in solution states.
this.DIGIT0 = '-'
this.DIGIT1 = '~'
this.scriptRE = null
this.scriptLowerCaseRE = null
this.colorScheme = {
'background': 'black',
'cell': 'white',
'active': 'mistyrose',
'currclue': 'white',
'orphan': 'linen',
'input': '#ffb6b4',
'light-label': 'black',
'light-text': 'black',
'light-label-input': 'black',
'light-text-input': 'black',
'circle': 'gray',
'circle-input': 'gray',
'caret': 'gray',
'arrow': 'mistyrose',
'prefill': 'blue',
'anno': 'darkgreen',
'solved': 'dodgerblue',
'separator': 'blue',
'imp-text': 'darkgreen',
'button': '#4caf50',
'button-text': 'white',
'button-hover': 'darkgreen',
'small-button': 'inherit',
'small-button-text': 'darkgreen',
'small-button-hover': 'lightpink',
}
this.nextLine = 0
this.STATE_SEP = 'xlv'
this.STATES_SEP = 'xxllvv' // xxllvv<id1>......xxllvv<id2>.....
this.textLabels = {
'clear': 'Clear this',
'clear.hover': 'Clear highlighted clues and squares. Clear crossers from full clues with a second click',
'clear-all': 'Clear all!',
'clear-all.hover': 'Clear everything! A second click clears all placeholder entries in clues without known squares',
'check': 'Check this',
'checkcell': 'Check cell',
'check.hover': 'Erase mistakes in highlighted squares. Long-click to check just the current cell',
'check-all': 'Check all',
'check-all.hover': 'Erase all mistakes. Reveal any available annos if no mistakes',
'reveal': 'Reveal this',
'revealcell': 'Reveal cell',
'reveal.hover': 'Reveal highlighted clue/squares. Long-click to reveal just the current cell',
'show-ninas': 'Show ninas',
'show-ninas.hover': 'Show ninas hidden in the grid/clues',
'hide-ninas': 'Hide ninas',
'hide-ninas.hover': 'Hide ninas shown in the grid/clues',
'reveal-all': 'Reveal all!',
'reveal-all.hover': 'Reveal all solutions, available annos, answers, notes!',
'submit': 'Submit',
'submit.hover': 'Submit the solution!',
'setter-by': 'By',
'curr-clue-prev': '‹',
'curr-clue-prev.hover': 'Previous clue',
'curr-clue-next': '›',
'curr-clue-next.hover': 'Next clue',
'squares-filled': 'Squares filled',
'across-label': 'Across',
'down-label': 'Down',
'tools-link': 'Tools',
'tools-link.hover': 'Show/hide tools: list of control keys and scratch pad',
'tools-msg': `
<ul>
<li><b>Tab/Shift-Tab:</b> Jump to the next/previous clue in the current direction</li>
<li><b>Enter, Click/Tap:</b> Toggle current direction</li>
<li><b>Arrow keys:</b> Move to the nearest light square in that direction</li>
<li><b>Spacebar:</b> Place/clear block in the current square if it's diagramless</li>
</ul>`,
'exolve-link': 'Exolve on GitHub',
'report-bug': 'Report bug',
'saving-msg': 'Your entries are auto-saved in cookies, for puzzles accessed over HTTPS and not from local files.',
'saving-bookmark': 'You can bookmark/save this link as additional back-up:',
'saving-url': 'URL',
'shuffle': 'Scratch pad: (click here to shuffle)',
'shuffle.hover': 'Shuffle selected text (or all text, if none selected)',
'across-letter': 'a',
'down-letter': 'd',
'mark-clue.hover': 'Click to forcibly mark/unmark as solved',
'curr-clue-prev': '‹',
'curr-clue-prev.hover': 'Previous clue',
'curr-clue-next': '›',
'curr-clue-next.hover': 'Next clue',
'placeholder.hover': 'You can record your solution here before copying to squares',
'placeholder-copy': '⇲',
'placeholder-copy.hover': 'Copy into currently highlighted squares',
'confirm-clear-all': 'Are you sure you want to clear every entry!?',
'confirm-clear-all-orphans1': 'Are you sure you want to clear every entry!? (The placeholder entries will not be cleared. To clear the placeholders, click on clear-all again after clearing the grid.)',
'confirm-clear-all-orphans2': 'Are you sure you want to clear every entry including all the placeholder entries!?',
'confirm-check-all': 'Are you sure you want to clear mistakes everywhere!?',
'confirm-mismatched-copy': 'Are you sure you want to do this mismatched copy (#letters-from : #squares-to)? ',
'confirm-show-ninas': 'Are you sure you want to reveal the nina(s)!?',
'confirm-reveal-all': 'Are you sure you want to reveal the whole solution!?',
'confirm-submit': 'Are you sure you are ready to submit!?',
'confirm-incomplete-submit': 'Are you sure you want to submit an INCOMPLETE solution!?',
}
// Variables set by exolve-option
this.hideInferredNumbers = false
this.cluesPanelLines = -1
this.allowDigits = false
this.hideCopyPlaceholders = false
this.addSolutionToAnno = true
this.offsetLeft = 0
this.offsetTop = 0
this.language = ''
this.languageScript = ''
this.langMaxCharCodes = 1
this.createPuzzle()
}
// Create the basic HTML structure.
// Set up globals, version number and user agent in bug link.
Exolve.prototype.init = function() {
this.parseOverall()
this.parseRelabel()
this.computeGridSize(this.maxDim)
if (!this.id || !this.id.match(/^[a-zA-Z][a-zA-Z\d-]*$/)) {
this.throwErr(
'Puzzle id should be non-empty, should start with a letter, ' +
'and should only have alphanumeric characters or -: ' + this.id)
}
if (!exolvePuzzles) {
exolvePuzzles = {'42xlvIndex42': 1}
}
if (exolvePuzzles[this.id]) {
this.throwErr('Puzzle id ' + this.id + ' is already in use')
}
exolvePuzzles[this.id] = this
this.index = exolvePuzzles['42xlvIndex42']++
this.prefix = 'xlv' + this.index
const basicHTML = `
<div class="xlv-frame xlv-flex-col" id="${this.prefix}-frame">
<h2 id="${this.prefix}-title" class="xlv-title"></h2>
<div id="${this.prefix}-setter" class="xlv-setter"></div>
<div id="${this.prefix}-preamble" class="xlv-preamble"></div>
<div id="${this.prefix}-curr-clue-parent" class="xlv-curr-clue-parent">
<div id="${this.prefix}-curr-clue" class="xlv-curr-clue"></div>
</div>
<div class="xlv-flex-row">
<div id="${this.prefix}-grid-panel" class="xlv-grid-panel">
<div id="${this.prefix}-grid-parent-centerer"
class="xlv-grid-parent-centerer">
<div id="${this.prefix}-grid-parent" class="xlv-grid-parent">
<svg id="${this.prefix}-grid" class="xlv-grid"
zoomAndPan="disable"></svg>
<div id="${this.prefix}-grid-input-wrapper"
class="xlv-grid-input-wrapper"
style="display:none;left:0;top:0"><input
id="${this.prefix}-grid-input" type="text" maxlength="2"
autocomplete="off" spellcheck="false"
class="xlv-grid-input xlv-cell-text"/></div>
<div id="${this.prefix}-nina-group"
style="display:none;left:0;top:0"></div>
</div> <!-- xlv-grid-parent -->
</div> <!-- xlv-grid-parent-centerer -->
<div id="${this.prefix}-controls-etc" class="xlv-controls-etc">
<div id="${this.prefix}-controls" class="xlv-controls xlv-wide-box">
<div id="${this.prefix}-button-row-1" class="xlv-controls-row">
<button id="${this.prefix}-clear"
class="xlv-button">${this.textLabels['clear']}</button>
<button id="${this.prefix}-clear-all"
class="xlv-button">${this.textLabels['clear-all']}</button>
<button id="${this.prefix}-check" class="xlv-button"
style="display:none">${this.textLabels['check']}</button>
<button id="${this.prefix}-check-all" class="xlv-button"
style="display:none">${this.textLabels['check-all']}</button>
</div> <!-- xlv-button-row-1 -->
<div id="${this.prefix}-button-row-2" class="xlv-controls-row">
<button id="${this.prefix}-reveal" class="xlv-button"
style="display:none">${this.textLabels['reveal']}</button>
<button id="${this.prefix}-ninas" class="xlv-button"
style="display:none">${this.textLabels['show-ninas']}</button>
<button id="${this.prefix}-reveal-all" class="xlv-button"
style="display:none">${this.textLabels['reveal-all']}</button>
</div> <!-- xlv-button-row-2 -->
</div> <!-- xlv-controls -->
<div id="${this.prefix}-errors" class="xlv-errors"></div>
<div id="${this.prefix}-status" class="xlv-status">
<span id="${this.prefix}-squares-filled">${this.textLabels['squares-filled']}</span>:
<span id="${this.prefix}-status-num-filled">0</span>/<span
id="${this.prefix}-status-num-total"></span>
</div> <!-- xlv-status -->
<div id="${this.prefix}-saving" class="xlv-wide-box xlv-saving">
<span id="${this.prefix}-saving-msg">
${this.textLabels['saving-msg']}
</span>
</div> <!-- xlv-saving -->
<div id="${this.prefix}-small-print" class="xlv-wide-box xlv-small-print">
<div id="${this.prefix}-tools" style="display:none">
<div id="${this.prefix}-tools-msg">
${this.textLabels['tools-msg']}
</div>
<div>
<span id="${this.prefix}-shuffle" class="xlv-shuffle"
title="${this.textLabels['shuffle.hover']}"
>${this.textLabels['shuffle']}</span>
<textarea
id="${this.prefix}-scratchpad" class="xlv-scratchpad"
spellcheck="false" rows="2"></textarea>
</div>
</div>
<a id="${this.prefix}-tools-link" href=""
title="${this.textLabels['tools-link.hover']}"
>${this.textLabels['tools-link']}</a>
<a id="${this.prefix}-report-bug"
href="https://github.com/viresh-ratnakar/exolve/issues/new">${this.textLabels['report-bug']}</a>
<a id="${this.prefix}-exolve-link"
href="https://github.com/viresh-ratnakar/exolve">${this.textLabels['exolve-link']}</a>
<span id="${this.prefix}-copyright"></span>
</div> <!-- xlv-small-print -->
<div id="${this.prefix}-questions" class="xlv-wide-box"></div>
<div id="${this.prefix}-submit-parent">
<button id="${this.prefix}-submit"
class="xlv-button" style="display:none">${this.textLabels['submit']}</button>
</div> <!-- submit-parent -->
<div id="${this.prefix}-explanations" class="xlv-wide-box
xlv-explanations" style="display:none"></div>
</div> <!-- xlv-controls-etc -->
<br/>
</div> <!-- xlv-grid-panel -->
<div id="${this.prefix}-clues" class="xlv-flex-row xlv-clues">
<div id="${this.prefix}-across-clues-panel" class="xlv-clues-box"
style="display:none">
<hr/>
<span id="${this.prefix}-across-label"
style="font-weight:bold">${this.textLabels['across-label']}</span>
<table id="${this.prefix}-across"></table>
<br/>
</div>
<div id="${this.prefix}-down-clues-panel" class="xlv-clues-box"
style="display:none">
<hr/>
<span id="${this.prefix}-down-label"
style="font-weight:bold">${this.textLabels['down-label']}</span>
<table id="${this.prefix}-down"></table>
<br/>
</div>
<div id="${this.prefix}-nodir-clues-panel"
class="xlv-clues-box" style="display:none">
<hr/>
<table id="${this.prefix}-nodir"></table>
<br/>
</div>
</div> <!-- xlv-clues -->
</div>
</div> <!-- xlv-frame -->
`
if (document.getElementById(this.prefix + '-frame')) {
this.throwErr('Element with id ' + this.prefix + 'frame already exists')
}
if (!this.containerId) {
this.containerId = 'exolve'
}
const exolveHolder = document.getElementById(this.containerId)
if (exolveHolder) {
if (this.containerId == 'exolve') {
exolveHolder.id = 'exolve' + this.index
}
exolveHolder.insertAdjacentHTML('beforeend', basicHTML)
} else {
document.body.insertAdjacentHTML('beforeend', basicHTML)
}
this.frame = document.getElementById(this.prefix + '-frame')
let title = document.getElementById(this.prefix + '-title')
if (this.title) {
title.innerHTML = this.title
} else {
title.style.display = 'none'
this.title = ''
}
let setter = document.getElementById(this.prefix + '-setter')
if (this.setter) {
setter.innerHTML = `<span id="${this.prefix}-setter-by">${this.textLabels['setter-by']}</span> ${this.setter}`
setter.style.color = this.colorScheme['imp-text']
} else {
setter.style.display = 'none'
this.setter = ''
}
if (this.copyright) {
document.getElementById(this.prefix + '-copyright').innerHTML =
'Ⓒ ' + this.copyright
} else {
this.copyright = ''
}
let smallPrintBox = document.getElementById(this.prefix + '-small-print')
for (credit of this.credits) {
smallPrintBox.insertAdjacentHTML('beforeend', '<div>' + credit + '</div>')
}
this.gridPanel = document.getElementById(this.prefix + '-grid-panel');
this.svg = document.getElementById(this.prefix + '-grid');
this.gridInputWrapper = document.getElementById(this.prefix + '-grid-input-wrapper');
this.gridInputWrapper.style.width = '' + this.squareDim + 'px'
this.gridInputWrapper.style.height = '' + (this.squareDim - 2) + 'px'
this.gridInputWrapper.insertAdjacentHTML('beforeend',
`<div id="${this.prefix}-grid-input-rarr" class="xlv-grid-input-rarr">▸</div>`)
this.gridInputWrapper.insertAdjacentHTML('beforeend',
`<div id="${this.prefix}-grid-input-darr" class="xlv-grid-input-darr">▾</div>`)
this.gridInputRarr = document.getElementById(this.prefix + '-grid-input-rarr');
this.gridInputDarr = document.getElementById(this.prefix + '-grid-input-darr');
this.gridInputRarr.style.color = this.colorScheme['arrow']
this.gridInputDarr.style.color = this.colorScheme['arrow']
this.gridInputRarr.style.fontSize = this.arrowSize + 'px'
this.gridInputDarr.style.fontSize = this.arrowSize + 'px'
this.gridInput = document.getElementById(this.prefix + '-grid-input');
this.gridInput.style.caretColor = this.colorScheme['caret']
this.questions = document.getElementById(this.prefix + '-questions');
this.acrossPanel = document.getElementById(this.prefix + '-across-clues-panel')
this.downPanel = document.getElementById(this.prefix + '-down-clues-panel')
this.nodirPanel = document.getElementById(this.prefix + '-nodir-clues-panel')
this.acrossClues = document.getElementById(this.prefix + '-across')
this.downClues = document.getElementById(this.prefix + '-down')
this.nodirClues = document.getElementById(this.prefix + '-nodir')
this.currClue = document.getElementById(this.prefix + '-curr-clue')
this.currClueParent = document.getElementById(this.prefix + '-curr-clue-parent')
this.ninaGroup = document.getElementById(this.prefix + '-nina-group')
this.statusNumFilled = document.getElementById(this.prefix + '-status-num-filled')
this.statusNumTotal = document.getElementById(this.prefix + '-status-num-total')
if (this.addStateToUrl) {
document.getElementById(this.prefix + '-saving').insertAdjacentHTML('beforeend',
`<span id="${this.prefix}-saving-bookmark">
${this.textLabels['saving-bookmark']} </span>
<a id="${this.prefix}-saving-url" href="">URL</a>`);
this.savingURL = document.getElementById(this.prefix + '-saving-url')
}
this.clearButton = document.getElementById(this.prefix + '-clear')
this.clearButton.addEventListener('click', this.clearCurr.bind(this));
this.clearAllButton = document.getElementById(this.prefix + '-clear-all')
this.clearAllButton.addEventListener('click', this.clearAll.bind(this));
this.checkButton = document.getElementById(this.prefix + '-check')
this.checkButton.addEventListener('mousedown', this.cellLightToggler.bind(
this, this.checkButton, this.textLabels['checkcell']));
this.checkButton.addEventListener('mouseup', this.checkCurr.bind(this));
this.checkAllButton = document.getElementById(this.prefix + '-check-all')
this.checkAllButton.addEventListener('click', this.checkAll.bind(this));
this.ninasButton = document.getElementById(this.prefix + '-ninas')
this.ninasButton.addEventListener('click', this.toggleNinas.bind(this));
this.revealButton = document.getElementById(this.prefix + '-reveal')
this.revealButton.addEventListener('mousedown', this.cellLightToggler.bind(
this, this.revealButton, this.textLabels['revealcell']));
this.revealButton.addEventListener('mouseup', this.revealCurr.bind(this));
this.revealAllButton = document.getElementById(this.prefix + '-reveal-all')
this.revealAllButton.addEventListener('click', this.revealAll.bind(this));
this.submitButton = document.getElementById(this.prefix + '-submit')
this.submitButton.addEventListener('click', this.submitSolution.bind(this));
document.getElementById(this.prefix + '-tools-link').addEventListener(
'click', this.toggleTools.bind(this));
this.scratchPad = document.getElementById(this.prefix + '-scratchpad')
this.scratchPad.style.color = this.colorScheme['imp-text']
document.getElementById(this.prefix + '-shuffle').addEventListener(
'click', this.scratchPadShuffle.bind(this));
let info = 'Version: ' + this.VERSION + ', User Agent: ' + navigator.userAgent
document.getElementById(this.prefix + '-report-bug').href =
'https://github.com/viresh-ratnakar/exolve/issues/new?body=' +
encodeURIComponent(info);
this.CURR_ORPHAN_ID = this.prefix + '-curr-orphan'
this.followDirOrder()
// Sets language of puzzle elements if exolve-language was specified.
if (this.language) {
this.frame.lang = this.language
this.gridInput.lang = this.language
this.questions.lang = this.language
this.gridInput.maxLength = '' + (2 * this.langMaxCharCodes)
}
}
Exolve.prototype.log = function(msg) {
console.log('Exolve puzzle #' + this.index + ' [' + this.id + ']: ' + msg)
}
// The overall parser for the puzzle text.
Exolve.prototype.parseOverall = function() {
this.specLines = []
let rawLines = this.puzzleText.trim().split('\n');
for (let rawLine of rawLines) {
let cIndex = rawLine.indexOf('#');
// A # followed by a non-space/non-eol character is not a comment marker.
while (cIndex >= 0 && cIndex + 1 < rawLine.length &&
rawLine.charAt(cIndex + 1) != ' ') {
cIndex = rawLine.indexOf('#', cIndex + 1);
}
if (cIndex >= 0) {
rawLine = rawLine.substr(0, cIndex).trim()
}
if (!rawLine) {
continue;
}
this.specLines.push(rawLine)
}
this.numLines = this.specLines.length
let parsedSec = this.parseSection()
while (parsedSec && parsedSec.section != 'end') {
let firstLine = this.nextLine
let nextParsedSec = this.parseSection()
let lastLine = this.nextLine - 2
if (parsedSec.section == 'begin') {
} else if (parsedSec.section == 'id') {
this.id = parsedSec.value.trim()
} else if (parsedSec.section == 'title') {
this.title = parsedSec.value.trim()
} else if (parsedSec.section == 'setter') {
this.setter = parsedSec.value.trim()
} else if (parsedSec.section == 'copyright') {
this.copyright = parsedSec.value.trim()
} else if (parsedSec.section == 'credits') {
this.credits.push(parsedSec.value.trim())
} else if (parsedSec.section == 'width') {
this.gridWidth = parseInt(parsedSec.value)
} else if (parsedSec.section == 'height') {
this.gridHeight = parseInt(parsedSec.value)
} else if (parsedSec.section == 'preamble' ||
parsedSec.section == 'prelude') {
this.preludeFirstLine = firstLine
this.preludeLastLine = lastLine
} else if (parsedSec.section == 'postscript') {
this.psFirstLine = firstLine
this.psLastLine = lastLine
} else if (parsedSec.section == 'grid') {
this.gridFirstLine = firstLine
this.gridLastLine = lastLine
} else if (parsedSec.section == 'nina') {
this.parseNina(parsedSec.value)
} else if (parsedSec.section == 'colour' ||
parsedSec.section == 'color') {
this.parseColour(parsedSec.value)
} else if (parsedSec.section == 'question') {
this.questionTexts.push(parsedSec.value)
} else if (parsedSec.section == 'submit') {
this.parseSubmit(parsedSec.value)
} else if (parsedSec.section == 'across') {
this.acrossFirstLine = firstLine
this.acrossLastLine = lastLine
} else if (parsedSec.section == 'down') {
this.downFirstLine = firstLine
this.downLastLine = lastLine
} else if (parsedSec.section == 'nodir') {
this.nodirFirstLine = firstLine
this.nodirLastLine = lastLine
} else if (parsedSec.section == 'option') {
this.parseOption(parsedSec.value)
} else if (parsedSec.section == 'language') {
this.parseLanguage(parsedSec.value)
} else if (parsedSec.section == 'explanations') {
this.explnFirstLine = firstLine
this.explnLastLine = lastLine
} else if (parsedSec.section == 'relabel') {
this.relabelFirstLine = firstLine
this.relabelLastLine = lastLine
}
parsedSec = nextParsedSec
}
this.dirOrder = {}
this.dirOrder['A'] = this.acrossFirstLine || 0
this.dirOrder['D'] = this.downFirstLine || 0
this.dirOrder['X'] = this.nodirFirstLine || 0
}
// specLines[] has been parsed till line # nextLine. Find the
// next line beginning with 'exolve-<section>' and return <section> as well
// as the 'value' of the section (the part after ':').
Exolve.prototype.parseSection = function() {
const MARKER = 'exolve-'
while (this.nextLine < this.numLines &&
this.specLines[this.nextLine].trim().indexOf(MARKER) != 0) {
this.nextLine++;
}
if (this.nextLine >= this.numLines) {
return null
}
// Skip past MARKER
let line = this.specLines[this.nextLine].trim().substr(MARKER.length)
let index = line.indexOf(':')
if (index < 0) {
index = line.length
}
this.nextLine++
return {section: line.substr(0, index).trim().toLowerCase(),
value: line.substr(index + 1).trim()}
}
// If s is like 15a or 16D, return A15 or D16. Otherwise just return s.
Exolve.prototype.maybeClueIndex = function(s) {
if (s.trim().match(/^\d+[aAdD]$/)) {
s = s.trim()
s = s.substr(s.length - 1).toUpperCase() + s.substr(0, s.length - 1)
}
return s
}
// Parse a nina line, which consists of cell locations or clue indices.
// Convert the cell locations to [row col] and push an array of these to the
// global ninas array.
Exolve.prototype.parseNina = function(s) {
let nina = []
let cellsOrOthers = s.split(' ')
for (let cellOrOther of cellsOrOthers) {
if (!cellOrOther) {
continue
}
let cellLocation = this.parseCellLocation(cellOrOther)
if (!cellLocation) {
// Must be a class name, for a span-class-specified nina OR a clue index
nina.push(this.maybeClueIndex(cellOrOther))
} else {
nina.push(cellLocation)
}
}
if (nina.length > 0) {
this.ninas.push(nina)
}
}
Exolve.prototype.parseColour = function(s) {
let colourAndCells = s.split(' ')
let colour = ''
for (let c of colourAndCells) {
if (!c) {
continue
}
if (!colour) {
colour = c
continue;
}
let cellLocation = this.parseCellLocation(c)
if (!cellLocation) {
this.cellColours.push([this.maybeClueIndex(c), colour]) // clue index
} else {
this.cellColours.push(cellLocation.concat(colour))
}
}
}
Exolve.prototype.answerListener = function(answer, forceUpper) {
this.deactivateCurrCell()
this.deactivateCurrClue()
this.usingGnav = false
let cursor = answer.selectionStart
if (forceUpper) {
answer.value = answer.value.toUpperCase().trimLeft()
} else {
answer.value = answer.value.trimLeft()
}
answer.selectionEnd = cursor
this.updateAndSaveState()
}
// Parse a questionTexts and create the question elements for (which include
// an input box for the answer). The solution answer may be provided after the
// last ')'.
Exolve.prototype.displayQuestions = function() {
for (let s of this.questionTexts) {
let enumParse = this.parseEnum(s)
let inputLen = enumParse.placeholder.length
let afterEnum = enumParse.afterEnum
let rawQ = s.substr(0, afterEnum)
let hideEnum = false
if (inputLen > 0) {
if (s.substr(afterEnum, 1) == '*') {
let beforeEnum = s.lastIndexOf('(', afterEnum - 1)
if (beforeEnum < 0) {
this.throwErr('Could not find open-paren in question')
}
rawQ = s.substr(0, beforeEnum)
afterEnum++
hideEnum = true
}
}
s = s.substr(afterEnum).trim();
let forceUpper = true;
if (s.substr(0,14) == "[lowercase-ok]") {
forceUpper = false;
s = s.substr(14).trim();
}
let correctAnswer = s;
const question = document.createElement('div')
question.setAttributeNS(null, 'class', 'xlv-question');
const questionText = document.createElement('span')
questionText.innerHTML = rawQ
question.appendChild(questionText)
question.appendChild(document.createElement('br'))
if (inputLen == 0) {
hideEnum = true
inputLen = '30'
}
let rows = Math.floor(inputLen / this.textAreaCols)
if (rows * this.textAreaCols < inputLen) {
rows++
}
let cols = (rows > 1) ? this.textAreaCols : inputLen
let aType = 'input'
if (rows > 1) {
aType = 'textarea'
}
const answer = document.createElement(aType)
if (rows > 1) {
answer.setAttributeNS(null, 'rows', '' + rows);
answer.setAttributeNS(null, 'cols', '' + cols);
} else {
answer.setAttributeNS(null, 'size', '' + cols);
}
answer.setAttributeNS(null, 'class', 'xlv-answer');
this.answersList.push({
ans: correctAnswer,
input: answer,
isq: true,
});
if (!hideEnum) {
answer.setAttributeNS(null, 'placeholder', enumParse.placeholder);
}
answer.setAttributeNS(null, 'class', 'xlv-answer');
answer.style.color = this.colorScheme['imp-text']
if (rows == 1) {
answer.setAttributeNS(null, 'type', 'text');
}
answer.setAttributeNS(null, 'maxlength', '' + inputLen * this.langMaxCharCodes);
answer.setAttributeNS(null, 'autocomplete', 'off');
answer.setAttributeNS(null, 'spellcheck', 'false');
question.appendChild(answer)
this.questions.appendChild(question)
answer.addEventListener('input', this.answerListener.bind(this, answer, forceUpper));
}
}
Exolve.prototype.parseSubmit = function(s) {
let parts = s.split(' ')
if (s.length < 2) {
this.throwErr('Submit must have a URL and a param name for the solution')
}
this.submitURL = parts[0]
this.submitKeys = []
for (let i = 1; i < parts.length; i++) {
this.submitKeys.push(parts[i])
}
}
Exolve.prototype.parseOption = function(s) {
let sparts = s.split(' ')
for (let spart of sparts) {
spart = spart.trim().toLowerCase()
if (spart == "hide-inferred-numbers") {
this.hideInferredNumbers = true
continue
}
if (spart == "allow-digits") {
this.allowDigits = true
continue
}
if (spart == "hide-copy-placeholder-buttons") {
this.hideCopyPlaceholders = true
continue
}
if (spart == "no-auto-solution-in-anno") {
this.addSolutionToAnno = false
continue
}
let kv = spart.split(':')
if (kv.length != 2) {
this.throwErr('Expected exolve-option: key:value, got: ' + spart)
}
if (kv[0] == 'clues-panel-lines') {
this.cluesPanelLines = parseInt(kv[1])
if (isNaN(this.cluesPanelLines)) {
this.throwErr('Unexpected val in exolve-option: clue-panel-lines: ' + kv[1])
}
continue
}
if (kv[0] == 'offset-left') {
this.offsetLeft = parseInt(kv[1])
if (isNaN(this.offsetLeft)) {
this.throwErr('Unexpected val in exolve-option: offset-left: ' + kv[1])
}
continue
}
if (kv[0] == 'offset-top') {
this.offsetTop = parseInt(kv[1])
if (isNaN(this.offsetTop)) {
this.throwErr('Unexpected val in exolve-option: offset-top: ' + kv[1])
}
continue
}
if (kv[0] == 'grid-background') {
this.colorScheme['background'] = kv[1]
continue
}
if (kv[0].substr(0, 6) == 'color-' || kv[0].substr(0, 7) == 'colour-') {
let key = kv[0].substr(kv[0].indexOf('-') + 1);
if (!this.colorScheme[key]) {
this.throwErr('Unsupported coloring option: ' + kv[0])
}
this.colorScheme[key] = kv[1]
continue
}
this.throwErr('Unexpected exolve-option: ' + spart)
}
}
Exolve.prototype.parseLanguage = function(s) {
const parts = s.trim().split(' ')
if (parts.length < 2) {
this.throwErr('Usage: exolve-language: ' + s + 'cannot be parsed ' +
'as "language-code Script [max-char-codes]"')
}
this.language = parts[0]
this.languageScript = parts[1]
try {
this.scriptRE = new RegExp('\\p{Script=' + this.languageScript + '}', 'u')
this.scriptLowerCaseRE = new RegExp('\\p{Lowercase}', 'u')
} catch (err) {
this.throwErr(
'Your browser ' +
'<a href="https://caniuse.com/#search=Unicode%20property%20escapes"' +
'>does not support Unicode property escapes</a> OR you\'ve provided ' +
'an invalid Script name: ' + this.languageScript)
}
// Hard-code some known scripts requiring langMaxCharCodes
if (this.languageScript.toLowerCase() == 'devanagari') {
this.langMaxCharCodes = 4
}
if (parts.length > 2) {
this.langMaxCharCodes = parseInt(parts[2])
if (isNaN(this.langMaxCharCodes) || this.langMaxCharCodes < 1) {
this.throwErr('invalid max-char-codes in exolve-language: ' + parts[2])
}
}
}
// Extracts the prelude from its previously identified lines and sets up
// its display.
Exolve.prototype.parseAndDisplayPrelude = function() {
if (this.preludeFirstLine >= 0 && this.preludeFirstLine <= this.preludeLastLine) {
let preludeText = this.specLines[this.preludeFirstLine]
let l = this.preludeFirstLine + 1
while (l <= this.preludeLastLine) {
preludeText = preludeText + '\n' + this.specLines[l]
l++;
}
document.getElementById(this.prefix + '-preamble').innerHTML = preludeText
}
}
Exolve.prototype.parseAndDisplayPS = function() {
if (this.psFirstLine >= 0 && this.psFirstLine <= this.psLastLine) {
let psText = this.specLines[this.psFirstLine]
let l = this.psFirstLine + 1
while (l <= this.psLastLine) {
psText = psText + '\n' + this.specLines[l]
l++;
}
psHTML = `<div id='${this.prefix}-postscript' class='xlv-postscript'><hr> ${psText} </div>`;
this.frame.insertAdjacentHTML('beforeend', psHTML);
}
}
// Extracts the explanations section from its previously identified lines,
// populates its element, and adds it to revelationList.
Exolve.prototype.parseAndDisplayExplanations = function() {
if (this.explnFirstLine >= 0 &&
this.explnFirstLine <= this.explnLastLine) {
let explnText = this.specLines[this.explnFirstLine]
let l = this.explnFirstLine + 1
while (l <= this.explnLastLine) {
explnText = explnText + '\n' + this.specLines[l]
l++;
}
const expln = document.getElementById(this.prefix + '-explanations')
expln.innerHTML = explnText
this.revelationList.push(expln)
}
}
// Parses exolve-relabel, noting relabelled texts of various buttons etc.
Exolve.prototype.parseRelabel = function() {
if (this.relabelFirstLine < 0 ||
this.relabelFirstLine > this.relabelLastLine) {
return
}
let l = this.relabelFirstLine
while (l <= this.relabelLastLine) {
const colon = this.specLines[l].indexOf(':')
if (colon < 0) {
this.throwErr('Line in exolve-relabel does not look like ' +
'"name: new-label":' + this.specLines[l])
}
let id = this.specLines[l].substr(0, colon).trim()
let val = this.specLines[l].substr(colon + 1).trim()
if (this.textLabels[id]) {
this.textLabels[id] = val
} else {
this.throwErr('exolve-relabel: unsupported id: ' + id)
}
l++;
}
}
// Append an error message to the errors div. Scuttle everything by setting
// gridWidth to 0.
Exolve.prototype.throwErr = function(error) {
const e = document.getElementById(this.prefix + '-errors')
if (e) {
e.innerHTML = e.innerHTML + '<br/>' + error;