String

Arbitrary binary data represented as a Mathematica string.
Used for importing or exporting entire raw binary data.
  • Using as the format specification, Import and Export can represent any file as a sequence of ordinary or special characters.

Import and ExportImport and Export

  • Import["file", "String"] imports a file as a raw string, representing each byte of the file as the character corresponding to FromCharacterCode[byte].
  • Export["file", str, "String"] exports a Mathematica string of characters to a binary file. Characters with an encoding greater than 255 are converted to their ASCII representation before exporting.
  • The format must be explicitly specified.
  • ExportString[expr, "format"] and Import[Export["tmp", expr, "format"], "String"] return the same expression.
  • Import["file", "String"] reads any binary file, representing its raw content as a Mathematica string object.
  • Export["file", str, "String"] exports a Mathematica string to a file.
  • No character encoding transformations are performed when importing or exporting as .
  • Export["file", expr, "String"] exports a textual representation of expr.
  • See the reference pages for full general information on Import and Export.
  • ImportString and ExportString support the format.

ExamplesExamplesopen allclose all

Basic Examples (1)Basic Examples (1)

Read an arbitrary binary file and return it as a raw Mathematica string:

In[1]:=
Click for copyable input

Show the first bytes of the result, which contain unprintable characters:

In[2]:=
Click for copyable input
Out[2]=

Convert the string which represents the file "ocelot.jpg" to graphics:

In[3]:=
Click for copyable input
Out[3]=

Import binary data and compute a MD5 checksum:

In[1]:=
Click for copyable input
Out[1]=
New in 5.1 | Last modified in 6
New to Mathematica? Find your learning path »
Have a question? Ask support »