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Improve JSON error handling.

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Add support for detection of invalid line breaks in JSON string values.
Fixes #137. Could be improved to fetch the column number and drop the
messy grabbing of the line number from the exception message via regex,
but currently the "jsonlint" library (not to be confused with
"json-lint") only emits an error string. Since this is also the library
that drives http://jsonlint.com, we'll accept the messy regex in return
for more robust error checking when our default json-lint path fails.

All of the above only necessary because standard JSON.parse error
handling is broken in all environments. : )
This commit is contained in:
hacksalot
2016-02-12 17:11:11 -05:00
parent daeffd27b5
commit b26799f9fc
7 changed files with 69 additions and 27 deletions
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36
dist/utils/syntax-error-ex.js vendored
View File

@ -18,17 +18,31 @@ See: http://stackoverflow.com/q/13323356
(function() {
var SyntaxErrorEx;
SyntaxErrorEx = function(ex, rawData) {
var JSONLint, colNum, lineNum, lint;
lineNum = null;
colNum = null;
JSONLint = require('json-lint');
lint = JSONLint(rawData, {
comments: false
});
this.line = lint.error ? lint.line : '???';
return this.col = lint.error ? lint.character : '???';
};
SyntaxErrorEx = (function() {
function SyntaxErrorEx(ex, rawData) {
var JSONLint, colNum, lineNum, lint, ref;
lineNum = null;
colNum = null;
JSONLint = require('json-lint');
lint = JSONLint(rawData, {
comments: false
});
if (lint.error) {
ref = [lint.line, lint.character], this.line = ref[0], this.col = ref[1];
}
if (!lint.error) {
JSONLint = require('jsonlint');
try {
JSONLint.parse(rawData);
} catch (_error) {
this.line = (/on line (\d+)/.exec(_error))[1];
}
}
}
return SyntaxErrorEx;
})();
SyntaxErrorEx.is = function(ex) {
return ex instanceof SyntaxError;