Szathmáry László honlapja @ DEIK | DLang / Include the content of a text file

Let's say we have a text file and we want to include its content in a string during compilation.

$ cat lorem.txt
Lorem ipsum dolor,
molestiae quas vel
numquam blanditiis.

(1) embed a text file's content
package templates // Go code import _ "embed" //go:embed lorem.txt var LoremIpsum string	import std.stdio; import std.string; static immutable string LOREM = import("lorem.txt").strip(); void main() { writeln(LOREM); }

The compilation is a bit tricky:

$ dmd main.d
main.d(6): Error: need `-J` switch to import text file `lorem.txt`
static immutable string LOREM = import("lorem.txt").strip();
                                ^
$ dmd -J. main.d

Why -J is needed:

D's import("file.txt") is secure by default. It won't read arbitrary files unless explicitly allowed.
-J tells the compiler where to look for imported files. In my case, lorem.txt is next to main.d in the current directory (.)

Move the EXE to a different directory and execute it there:

$ cat lorem.txt
cat: lorem.txt: No such file or directory

$ ./main
Lorem ipsum dolor,
molestiae quas vel
numquam blanditiis.