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hsmusic-wiki - HSMusic - static wiki software cataloguing collaborative creation
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-rw-r--r--src/util/strings.js246
1 files changed, 0 insertions, 246 deletions
diff --git a/src/util/strings.js b/src/util/strings.js
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index 835e4055..00000000
--- a/src/util/strings.js
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-import { logError, logWarn } from './cli.js';
-import { bindOpts } from './sugar.js';
-
-// Localiz8tion time! Or l10n as the neeeeeeeerds call it. Which is a terri8le
-// name and not one I intend on using, thank you very much. (Don't even get me
-// started on """"a11y"""".)
-//
-// All the default strings are in strings-default.json, if you're curious what
-// those actually look like. Pretty much it's "I like {ANIMAL}" for example.
-// For each language, the o8ject gets turned into a single function of form
-// f(key, {args}). It searches for a key in the o8ject and uses the string it
-// finds (or the one in strings-default.json) as a templ8 evaluated with the
-// arguments passed. (This function gets treated as an o8ject too; it gets
-// the language code attached.)
-//
-// The function's also responsi8le for getting rid of dangerous characters
-// (quotes and angle tags), though only within the templ8te (not the args),
-// and it converts the keys of the arguments o8ject from camelCase to
-// CONSTANT_CASE too.
-//
-// This function also takes an optional "bindUtilities" argument; it should
-// look like a dictionary each value of which is itself a util dictionary,
-// each value of which is a function in the format (value, opts) => (...).
-// Each of those util dictionaries will 8e attached to the final returned
-// language.$() function, containing functions which automatically have that
-// same language.$() function provided as part of its opts argument (alongside
-// any additional arguments passed).
-//
-// Basically, it's so that instead of doing:
-//
-//     count.tracks(album.tracks.length, {strings})
-//
-// ...you can just do:
-//
-//     language.countTracks(album.tracks.length)
-//
-// Definitely note bindUtilities expects an OBJECT, not an array, otherwise
-// it won't 8e a8le to know what keys to attach the utilities 8y!
-//
-// Oh also it'll need access to the he.encode() function, and callers have to
-// provide that themselves, 'cuz otherwise we can't reference this file from
-// client-side code.
-export function genStrings(stringsJSON, {
-    he,
-    defaultJSON = null,
-    bindUtilities = {}
-}) {
-    // genStrings will only 8e called once for each language, and it happens
-    // right at the start of the program (or at least 8efore 8uilding pages).
-    // So, now's a good time to valid8te the strings and let any warnings be
-    // known.
-
-    // May8e contrary to the argument name, the arguments should 8e o8jects,
-    // not actual JSON-formatted strings!
-    if (typeof stringsJSON !== 'object' || stringsJSON.constructor !== Object) {
-        return {error: `Expected an object (parsed JSON) for stringsJSON.`};
-    }
-    if (typeof defaultJSON !== 'object') { // typeof null === object. I h8 JS.
-        return {error: `Expected an object (parsed JSON) or null for defaultJSON.`};
-    }
-
-    // All languages require a language code.
-    const code = stringsJSON['meta.languageCode'];
-    if (!code) {
-        return {error: `Missing language code.`};
-    }
-    if (typeof code !== 'string') {
-        return {error: `Expected language code to be a string.`};
-    }
-
-    // Lanuages can also provide a 8ase-directory code, which will otherwise
-    // default to the language code. This controls the name of the directory the
-    // localized HTML will 8e outputted to, which could 8e useful for, like,
-    // testing a 8uild of the site with one language JSON set somewhere besides
-    // the default directory.
-    //
-    // Note that internally, baseDirectory, not code, is the property used to
-    // identify a language - two language files may share a language code (like
-    // "en" or "es), but base directories should always be unique.
-    let baseDirectory = stringsJSON['meta.baseDirectory'];
-    if (!baseDirectory) {
-        baseDirectory = code;
-    }
-    if (typeof baseDirectory !== 'string') {
-        return {Error: `Expected base directory to be a string.`};
-    }
-
-    // Every value on the provided o8ject should be a string.
-    // (This is lazy, but we only 8other checking this on stringsJSON, on the
-    // assumption that defaultJSON was passed through this function too, and so
-    // has already been valid8ted.)
-    {
-        let err = false;
-        for (const [ key, value ] of Object.entries(stringsJSON)) {
-            if (typeof value !== 'string') {
-                logError`(${baseDirectory}) The value for ${key} should be a string.`;
-                err = true;
-            }
-        }
-        if (err) {
-            return {error: `Expected all values to be a string.`};
-        }
-    }
-
-    // Checking is generally done against the default JSON, so we'll skip out
-    // if that isn't provided (which should only 8e the case when it itself is
-    // 8eing processed as the first loaded language).
-    if (defaultJSON) {
-        // Warn for keys that are missing or unexpected.
-        const expectedKeys = Object.keys(defaultJSON);
-        const presentKeys = Object.keys(stringsJSON);
-        for (const key of presentKeys) {
-            if (!expectedKeys.includes(key)) {
-                logWarn`(${baseDirectory}) Unexpected translation key: ${key} - this won't be used!`;
-            }
-        }
-        for (const key of expectedKeys) {
-            if (!presentKeys.includes(key)) {
-                logWarn`(${baseDirectory}) Missing translation key: ${key} - this won't be localized!`;
-            }
-        }
-    }
-
-    // Valid8tion is complete, 8ut We can still do a little caching to make
-    // repeated actions faster.
-
-    // We're gonna 8e mut8ting the strings dictionary o8ject from here on out.
-    // We make a copy so we don't mess with the one which was given to us.
-    stringsJSON = Object.assign({}, stringsJSON);
-
-    // Preemptively pass everything through HTML encoding. This will prevent
-    // strings from embedding HTML tags or accidentally including characters
-    // that throw HTML parsers off.
-    for (const key of Object.keys(stringsJSON)) {
-        stringsJSON[key] = he.encode(stringsJSON[key], {useNamedReferences: true});
-    }
-
-    // It's time to cre8te the actual langauge function!
-
-    // In the function, we don't actually distinguish 8etween the primary and
-    // default (fall8ack) strings - any relevant warnings have already 8een
-    // presented a8ove, at the time the language JSON is processed. Now we'll
-    // only 8e using them for indexing strings to use as templ8tes, and we can
-    // com8ine them for that.
-    const stringIndex = Object.assign({}, defaultJSON, stringsJSON);
-
-    // We do still need the list of valid keys though. That's 8ased upon the
-    // default strings. (Or stringsJSON, 8ut only if the defaults aren't
-    // provided - which indic8tes that the single o8ject provided *is* the
-    // default.)
-    const validKeys = Object.keys(defaultJSON || stringsJSON);
-
-    const invalidKeysFound = [];
-
-    const strings = (key, args = {}) => {
-    };
-
-    // And lastly, we add some utility stuff to the strings function.
-
-    // Store the language code, for convenience of access.
-    strings.code = code;
-
-    // Store the strings dictionary itself, also for convenience.
-    strings.json = stringsJSON;
-
-    // Same with the base directory.
-    strings.baseDirectory = baseDirectory;
-
-    // Store Intl o8jects that can 8e reused for value formatting.
-    strings.intl = {
-        date: new Intl.DateTimeFormat(code, {full: true}),
-        number: new Intl.NumberFormat(code),
-        list: {
-            conjunction: new Intl.ListFormat(code, {type: 'conjunction'}),
-            disjunction: new Intl.ListFormat(code, {type: 'disjunction'}),
-            unit: new Intl.ListFormat(code, {type: 'unit'})
-        },
-        plural: {
-            cardinal: new Intl.PluralRules(code, {type: 'cardinal'}),
-            ordinal: new Intl.PluralRules(code, {type: 'ordinal'})
-        }
-    };
-
-    // And the provided utility dictionaries themselves, of course!
-    for (const [key, utilDict] of Object.entries(bindUtilities)) {
-        const boundUtilDict = {};
-        for (const [key, fn] of Object.entries(utilDict)) {
-            boundUtilDict[key] = bindOpts(fn, {strings});
-        }
-        strings[key] = boundUtilDict;
-    }
-
-    return strings;
-}
-
-const countHelper = (stringKey, argName = stringKey) => (value, {strings, unit = false}) => language.$(
-    (unit
-        ? `count.${stringKey}.withUnit.` + strings.intl.plural.cardinal.select(value)
-        : `count.${stringKey}`),
-    {[argName]: strings.intl.number.format(value)});
-
-export const count = {
-    date: (date, {strings}) => {
-        return strings.intl.date.format(date);
-    },
-
-    dateRange: ([startDate, endDate], {strings}) => {
-        return strings.intl.date.formatRange(startDate, endDate);
-    },
-
-    duration: (secTotal, {strings, approximate = false, unit = false}) => {
-    },
-
-    index: (value, {strings}) => {
-    },
-
-    number: value => strings.intl.number.format(value),
-
-    words: (value, {strings, unit = false}) => {
-        const num = strings.intl.number.format(value > 1000
-            ? Math.floor(value / 100) / 10
-            : value);
-
-        const words = (value > 1000
-            ? language.$('count.words.thousand', {words: num})
-            : language.$('count.words', {words: num}));
-
-        return language.$('count.words.withUnit.' + strings.intl.plural.cardinal.select(value), {words});
-    },
-
-    albums: countHelper('albums'),
-    commentaryEntries: countHelper('commentaryEntries', 'entries'),
-    contributions: countHelper('contributions'),
-    coverArts: countHelper('coverArts'),
-    timesReferenced: countHelper('timesReferenced'),
-    timesUsed: countHelper('timesUsed'),
-    tracks: countHelper('tracks')
-};
-
-const listHelper = type => (list, {strings}) => strings.intl.list[type].format(list);
-
-export const list = {
-    unit: listHelper('unit'),
-    or: listHelper('disjunction'),
-    and: listHelper('conjunction')
-};