mulle-c-string-escape

➿ mulle-c-string-escape turns data into C strings

Non-ASCII characters will be escaped to hex or octal. C escape sequences are used for the predefined sequences like '\b'. The output is separated into lines of approximately even length and does not exceed the chosen line length. An example of a conversion is usage.txt being turned into usage.inc. You can feed it binary or text files.

You can copy/paste the output as string contents into your C source or #include the output like so:

static char  data[] =
#include "data.inc"
;
#define s_data ( sizeof( data) - 1)

Note

C will append a '\0' character to strings! So the actual data length is sizeof( data) - 1.

Options

See usage.txt for options.

Example

Let's use mulle-c-string-escape to create a C string representation of itself into a file "x.inc". We use cmake here, instead of mulle-sde craft --release, to ease the developer's fear of the unknown:

mkdir -p kitchen/Release
cmake -B kitchen/Release -DCMAKE_BUILD_TYPE=Release
cmake --build kitchen/Release --config Release
./kitchen/Release/mulle-c-string-escape \
   ./kitchen/Release/mulle-c-string-escape \
   x.inc

To verify that this has actually worked:

cat <<EOF > x.c
#include <stdio.h>


static char  text[] = "" // useful in case x.inc can be empty
#include "x.inc"
;

int  main( int argc, char *argv[])
{
   FILE   *fp;

   fp = fopen( "verify.exe", "wb");
   fwrite( text, sizeof( text) - 1, 1, fp); // -1 because C appends a \0
   return( fclose( fp));
}
EOF

cc -o x x.c
./x
diff verify.exe ./kitchen/Release/mulle-c-string-escape

Build

This is a mulle-sde project.

It comes with its own virtual environment and list of dependencies. To fetch and build everything say:

mulle-sde craft

Dedication

To the memory of Oliver "General" Mondry (mondry@me.com)

Author

Nat! for Mulle kybernetiK.