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postcss-message-helpers
Advanced tools
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-helpers
var messageHelpers = require("postcss-message-helpers")
var fnValue = messageHelpers.try(fn, source)
Execute fn
an return the value.
If an exception is thrown during the process, the exception will be catched, enhanced from source & re-throw.
var sourceMessage = messageHelpers.message(message, source)
Returns a message like sourcefile:lineno:column: message
.
source
should be a postcss source object from a node.
var source = messageHelpers.source(source)
Returns sourcefile:lineno:column
for a given source
postcss object.
// dependencies
var fs = require("fs")
var postcss = require("postcss")
var messageHelpers = require("postcss-message-helpers")
// css to be processed
var css = fs.readFileSync("input.css", "utf8")
// process css
var output = postcss()
.use(function(styles) {
styles.eachDecl(function transformDecl(decl) {
// will catch, adjust error stack, line, column & message (gnu style) then re-throw
messageHelpers.try(function IwillThrow() {
if (decl.value.indexOf("error(") > -1) {
throw new Error("error detected: " + decl.value)
}
}, decl.source)
// will output a gnu style warning
if (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
1.1.1 - 2014-11-24
originalMessage
property in the exceptionFAQs
PostCSS helpers to throw or output GNU style messages
The npm package postcss-message-helpers receives a total of 497,793 weekly downloads. As such, postcss-message-helpers popularity was classified as popular.
We found that postcss-message-helpers demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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