I think the safest approach here is to just replace any suspicious characters. So, I think you can just replace (or get rid of) anything that isn’t alphanumeric, -, _, a space, or a period. And here’s how you do that: import re re.sub(r'[^\w_. -]’, ‘_’, filename) The above escapes every character that’s not a … Read more
\u200b is a “zero-width-space” in Unicode. You should delete line 12 (the blank line), save the file, re-add the blank line and save again. using a simple text editor. If that doesn’t fix it delete lines 11 and 13 as well and recreate them.
You may set check.names = FALSE in data.frame (as well as in read.table): df <- data.frame(“Label 1” = 1:3, “Label 2” = rnorm(3), check.names = FALSE) returns: Label 1 Label 2 1 1 0.2013347 2 2 1.8823111 3 3 -0.5233811 From ?data.frame: check.names logical. If TRUE then the names of the variables in the data … Read more
read.csv() is a wrapper around the more general read.table() function. That latter function has argument check.names which is documented as: check.names: logical. If ‘TRUE’ then the names of the variables in the data frame are checked to ensure that they are syntactically valid variable names. If necessary they are adjusted (by ‘make.names’) so that they … Read more
On Android (at least by default) the file names encoded as UTF-8. Looks like reserved file name characters depend on filesystem mounted (http://en.wikipedia.org/wiki/Filename). I considered as reserved: private static final String ReservedChars = “|\\?*<\”:>+[]/'”;
There are no “illegal” characters for the database. Database that cannot store some characters is a nonsense. There are some service characters, like quotes, used to delimit strings. These characters should be just escaped, not eliminated. To send a query to the database, you have 2 options: Build a query usual way, to make it … Read more
The error When code is parsed by the JavaScript interpreter, it gets broken into pieces called “tokens”. When a token cannot be classified into one of the four basic token types, it gets labelled “ILLEGAL” on most implementations, and this error is thrown. The same error is raised if, for example, you try to run … Read more