Professionally supported postcss-message-helpers is now available
PostCSS helpers to throw or output GNU style messages.
This modules offers you some function to throw or just output messages with
GNU style:
sourcefile:lineno:column: message
$ npm install postcss-message-helpersvarmessageHelpers=require("postcss-message-helpers");Execute fn an return the value. If an exception is thrown during the process,
the exception will be catched, enhanced from source & re-throw.
Returns a message like sourcefile:lineno:column: message.source should be a postcss source object from a node.
Returns sourcefile:lineno:column for a given source postcss object.
// dependenciesvarfs=require("fs");varpostcss=require("postcss");varmessageHelpers=require("postcss-message-helpers");// css to be processedvarcss=fs.readFileSync("input.css","utf8");// process cssvaroutput=postcss().use(function(styles){styles.eachDecl(functiontransformDecl(decl){// will catch, adjust error stack, line, column & message (gnu style) then re-throwmessageHelpers.try(functionIwillThrow(){if(decl.value.indexOf("error(")>-1){thrownewError("error detected: "+decl.value);}},decl.source);// will output a gnu style warningif(decl.value.indexOf("warning(")>-1){console.warning(messageHelpers.message("warning: "+decl.value,decl.source));}});}).process(css).css;Checkout tests for more examples.
Work on a branch, install dev-dependencies, respect coding style & run tests before submitting a bug fix or a feature.
$ git clone https://github.com/MoOx/postcss-message-helpers.git
$ git checkout -b patch-1
$ npm install
$ npm test
To report a security vulnerability, please use the Tidelift security contact. Tidelift will coordinate the fix and disclosure.