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Merge pull request #3573 from atjn/locale-check
Improve sanity check for locales
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,233 @@ | ||
| /** | ||
| * Maps the Espruino datetime format to min and max character lengths. | ||
| * Used when determining if a format can produce outputs that are too short or long. | ||
| */ | ||
| const datetime_length_map = { | ||
| // %A, %a, %B, %b vary depending on the locale, so they are calculated later | ||
| "%Y": [4, 4], | ||
| "%y": [2, 2], | ||
| "%m": [2, 2], | ||
| "%-m": [1, 2], | ||
| "%d": [2, 2], | ||
| "%-d": [1, 2], | ||
| "%HH": [2, 2], | ||
| "%MM": [2, 2], | ||
| "%SS": [2, 2], | ||
| }; | ||
|
|
||
| /** | ||
| * Takes an Espruino datetime format string and returns the minumum and maximum possible length of characters that the format could use. | ||
| * | ||
| * @param {string} datetimeEspruino - The datetime Espruino format | ||
| * @returns first the minimum possible length, second the maximum possible length. | ||
| */ | ||
| function getLengthOfDatetimeFormat(name, datetimeEspruino, locale, errors) { | ||
|
|
||
| // Generate the length_map based on the actual names in the locale | ||
| const length_map = {...datetime_length_map}; | ||
| for(const [symbol, values] of [ | ||
| ["%A", locale.day], | ||
| ["%a", locale.abday], | ||
| ["%B", locale.month], | ||
| ["%b", locale.abmonth], | ||
| ]){ | ||
| const length = [Infinity, 0]; | ||
| for(const value of values.split(",")){ | ||
| if(length[0] > value.length) length[0] = value.length; | ||
| if(length[1] < value.length) length[1] = value.length; | ||
| } | ||
| length_map[symbol] = length; | ||
| } | ||
|
|
||
| // Find the length of the output | ||
| let formatLength = [0, 0]; | ||
| let i = 0; | ||
| while (i < datetimeEspruino.length) { | ||
| if (datetimeEspruino[i] === "%") { | ||
| let match; | ||
| for(const symbolLength of [2, 3]){ | ||
| const length = length_map[datetimeEspruino.substring(i, i+symbolLength)]; | ||
| if(length){ | ||
| match = { | ||
| length, | ||
| symbolLength, | ||
| } | ||
| } | ||
| } | ||
| if(match){ | ||
| formatLength[0] += match.length[0]; | ||
| formatLength[1] += match.length[1]; | ||
| i += match.symbolLength; | ||
| }else{ | ||
| errors.push({name, value: datetimeEspruino, lang: locale.lang, error: `uses an unsupported format symbol: ${datetimeEspruino.substring(i, i+3)}`}); | ||
| formatLength[0]++; | ||
| formatLength[1]++; | ||
| i++; | ||
| } | ||
| } else { | ||
| formatLength[0]++; | ||
| formatLength[1]++; | ||
| i++; | ||
| } | ||
| } | ||
| return formatLength; | ||
| } | ||
|
|
||
| /** | ||
| * Checks that a locale conforms to some basic standards. | ||
| * | ||
| * @param {object} locale - The locale to test. | ||
| * @param {object} meta - Meta information that is needed to check if locales are supported. | ||
| * @param {object} meta.speedUnits - The table of speed units. | ||
| * @param {object} meta.distanceUnits - The table of distance units. | ||
| * @param {object} meta.codePages - Custom codepoint mappings. | ||
| * @param {object} meta.CODEPAGE_CONVERSIONS - The table of custom codepoint conversions. | ||
| * @returns an object with an array of errors and warnings. | ||
| */ | ||
| function checkLocale(locale, {speedUnits, distanceUnits, codePages, CODEPAGE_CONVERSIONS}){ | ||
| const errors = []; | ||
| const warnings = []; | ||
|
|
||
| const speeds = Object.keys(speedUnits); | ||
| const distances = Object.keys(distanceUnits); | ||
|
|
||
| checkLength("lang", locale.lang, 5, undefined); | ||
| checkLength("decimal point", locale.decimal_point, 1, 1); | ||
| checkLength("thousands separator", locale.thousands_sep, 1, 1); | ||
| checkLength("speed", locale.speed, 2, 4); | ||
| checkIsIn("speed", locale.speed, "speedUnits", speeds); | ||
| checkLength("distance", locale.distance["0"], 1, 3); | ||
| checkLength("distance", locale.distance["1"], 1, 3); | ||
| checkIsIn("distance", locale.distance["0"], "distanceUnits", distances); | ||
| checkIsIn("distance", locale.distance["1"], "distanceUnits", distances); | ||
| checkLength("temperature", locale.temperature, 1, 2); | ||
| checkLength("meridian", locale.ampm["0"], 1, 3); | ||
| checkLength("meridian", locale.ampm["1"], 1, 3); | ||
| warnIfNot("long time format", locale.timePattern["0"], "%HH:%MM:%SS"); | ||
| warnIfNot("short time format", locale.timePattern["1"], "%HH:%MM"); | ||
| checkFormatLength("long time", locale.timePattern["0"], 8, 8); | ||
| checkFormatLength("short time", locale.timePattern["1"], 5, 5); | ||
| checkFormatLength("long date", locale.datePattern["0"], 6, 14); | ||
| checkFormatLength("short date", locale.datePattern["1"], 6, 11); | ||
| checkArrayLength("short months", locale.abmonth.split(","), 12, 12); | ||
| checkArrayLength("long months", locale.month.split(","), 12, 12); | ||
| checkArrayLength("short days", locale.abday.split(","), 7, 7); | ||
| checkArrayLength("long days", locale.day.split(","), 7, 7); | ||
| for (const abmonth of locale.abmonth.split(",")) { | ||
| checkLength("short month", abmonth, 2, 4); | ||
| } | ||
| for (const month of locale.month.split(",")) { | ||
| checkLength("month", month, 3, 11); | ||
| } | ||
| for (const abday of locale.abday.split(",")) { | ||
| checkLength("short day", abday, 2, 4); | ||
| } | ||
| for (const day of locale.day.split(",")) { | ||
| checkLength("day", day, 3, 13); | ||
| } | ||
| checkEncoding(locale); | ||
|
|
||
| function checkLength(name, value, min, max) { | ||
| if(typeof value !== "string"){ | ||
| errors.push({name, value, lang: locale.lang, error: `must be defined and must be a string`}); | ||
| return; | ||
| } | ||
| if (min && value.length < min) { | ||
| errors.push({name, value, lang: locale.lang, error: `must be longer than ${min-1} characters`}); | ||
| } | ||
| if (max && value.length > max) { | ||
| errors.push({name, value, lang: locale.lang, error: `must be shorter than ${max+1} characters`}); | ||
| } | ||
| } | ||
| function checkArrayLength(name, value, min, max){ | ||
| if(!Array.isArray(value)){ | ||
| errors.push({name, value, lang: locale.lang, error: `must be defined and must be an array`}); | ||
| return; | ||
| } | ||
| if (min && value.length < min) { | ||
| errors.push({name, value, lang: locale.lang, error: `array must be longer than ${min-1} entries`}); | ||
| } | ||
| if (max && value.length > max) { | ||
| errors.push({name, value, lang: locale.lang, error: `array must be shorter than ${max+1} entries`}); | ||
| } | ||
| } | ||
| function checkFormatLength(name, value, min, max) { | ||
| const length = getLengthOfDatetimeFormat(name, value, locale, errors); | ||
| if (min && length[0] < min) { | ||
| errors.push({name, value, lang: locale.lang, error: `output must be longer than ${min-1} characters`}); | ||
| } | ||
| if (max && length[1] > max) { | ||
| errors.push({name, value, lang: locale.lang, error: `output must be shorter than ${max+1} characters`}); | ||
| } | ||
| } | ||
| function checkIsIn(name, value, listName, list) { | ||
| if (!list.includes(value)) { | ||
| errors.push({name, value, lang: locale.lang, error: `must be included in the ${listName} map`}); | ||
| } | ||
| } | ||
| function warnIfNot(name, value, expected) { | ||
| if (value !== expected) { | ||
| warnings.push({name, value, lang: locale.lang, error: `might not work in some apps if it is not "${expected}"`}); | ||
| } | ||
| } | ||
| function checkEncoding(object) { | ||
| if(!object){ | ||
| return; | ||
| }else if(typeof object === "string"){ | ||
| for(const char of object){ | ||
| const charCode = char.charCodeAt(); | ||
| if (charCode >= 32 && charCode < 128) { | ||
| // ASCII - fully supported | ||
| continue; | ||
| } else if (codePages["ISO8859-1"].map.indexOf(char) >= 0) { | ||
| // At upload time, the char can be converted to a custom codepage | ||
| continue; | ||
| } else if (CODEPAGE_CONVERSIONS[char]) { | ||
| // At upload time, the char can be converted to a similar supported char | ||
| continue; | ||
| } | ||
| errors.push({name: `character ${char}`, value: char, lang: locale.lang, error: `is not supported by BangleJS`}); | ||
| } | ||
| }else{ | ||
| for(const [key, value] of Object.entries(object)){ | ||
| if(key === "icon") continue; | ||
| checkEncoding(value); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return {errors, warnings}; | ||
| } | ||
|
|
||
| /** | ||
| * Checks that an array of locales conform to some basic standards. | ||
| * | ||
| * @param {object[]} locales - The locales to test. | ||
| * @param {object} meta.speedUnits - The table of speed units. | ||
| * @param {object} meta.distanceUnits - The table of distance units. | ||
| * @param {object} meta.codePages - Custom codepoint mappings. | ||
| * @param {object} meta.CODEPAGE_CONVERSIONS - The table of custom codepoint conversions. | ||
| * @returns an object with an array of errors and warnings. | ||
| */ | ||
| function checkLocales(locales, meta){ | ||
| let errors = []; | ||
| let warnings = []; | ||
|
|
||
| for(const locale of Object.values(locales)){ | ||
| const result = checkLocale(locale, meta); | ||
| errors = [...errors, ...result.errors]; | ||
| warnings = [...warnings, ...result.warnings]; | ||
| } | ||
|
|
||
| return {errors, warnings}; | ||
| } | ||
|
|
||
| if(typeof module !== "undefined"){ | ||
| module.exports = { | ||
| checkLocale, | ||
| checkLocales, | ||
| }; | ||
| }else{ | ||
| globalThis.checkLocale = checkLocale; | ||
| globalThis.checkLocales = checkLocales; | ||
| } |
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