93 lines
3.3 KiB
Markdown
93 lines
3.3 KiB
Markdown
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# url-slug
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RFC 3986 compliant slug generator with support for multiple languages. It creates safe slugs for use in urls—and can revert them.
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## Install
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```bash
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$ npm install url-slug
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```
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## Use
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```js
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var urlSlug = require('url-slug');
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// Convert to common slug format, using defaults
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urlSlug('Sir James Paul McCartney MBE is an English singer-songwriter');
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// sir-james-paul-mc-cartney-mbe-is-an-english-singer-songwriter
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// Uppercase with default separator
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urlSlug('Comfortably Numb', null, 'uppercase');
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// COMFORTABLY-NUMB
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// Use an underscore separator and don't touch the string case
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urlSlug('á é í ó ú Á É Í Ó Ú ç Ç æ Æ œ Œ ® © € ¥ ª º ¹ ² ½ ¼', '_', false);
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// a_e_i_o_u_A_E_I_O_U_c_C_ae_AE_oe_OE_r_c_EU_Y_a_o_1_2_1_2_1_4
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// Titlecased without a separator
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urlSlug('Red, red wine, stay close to me…', '', 'titlecase');
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// RedRedWineStayCloseToMe
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// Use a custom separator and uppercase the string (the separator '.' was ignored, because spaces were replaced)
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urlSlug('O\'Neill is an American surfboard, surfwear and equipment brand', '.', function (sentence) {
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return sentence.replace(/ /g, '+').toUpperCase();
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});
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// O+NEILL+IS+AN+AMERICAN+SURFBOARD+SURFWEAR+AND+EQUIPMENT+BRAND
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// Automatic reversion of slugs
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urlSlug.revert('Replace-every_separator.allowed~andSplitCamelCase');
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// Replace every separator allowed and Split Camel Case
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// Precise reversion, setting the separator and converting the sentence to title case
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urlSlug.revert('this-title-needs-a-title_case', '-', 'titlecase');
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// This Title Needs A Title_case
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// Create a new instance with its own defaults
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var custom = new urlSlug.UrlSlug('~', 'uppercase');
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custom.convert('Listen to Fito Páez in Madrid');
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// LISTEN~TO~FITO~PAEZ~IN~MADRID
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```
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## Know
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### urlSlug(string[, separator, transform]), UrlSlug.convert(string[, separator, transform])
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Converts a sentence into a slug.
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- __separator__, defaults to `'-'` — can be any of `'-._~'` characters or an empty string; a `null` or `undefined` value will set the default separator
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- __transform__, defaults to `'lowercase'` — can be `'lowercase'`, `'uppercase'`, `'titlecase'` or a custom function; if set to `false`, no transform will take place; a `null` or `undefined` value will set the default transform
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### UrlSlug.revert(string[, separator, transform])
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Reverts a slug back to a sentence.
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- __separator__, defaults to `null` — can be any of `'-._~'` characters or an empty string; a `null` or `undefined` will set to match all possible separator characters and camel case occurrences; an empty string will set to match only camel case occurrences
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- __transform__, defaults to `null` — can be `'lowercase'`, `'uppercase'`, `'titlecase'` or a custom function; if set to `false`, `null` or `undefined` no transform will take place
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### urlSlug.UrlSlug([separator, transform])
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url-slug constructor, use this if you need another instance. If __separator__ or __transform__ are set, they will be used as the default values of the instance.
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- __separator__, defaults to `'-'`
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- __transform__, defaults to `'lowercase'`
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### Builtin transformers
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- __UrlSlug.transformers.lowercase__ — lower case
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- __UrlSlug.transformers.uppercase__ — UPPER CASE
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- __UrlSlug.transformers.titlecase__ — Title Case
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## TODO
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- Option to keep specific characters
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