graphic as plain text
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Lilypond

Lilypond

Metapost

Metapost

gnuplot

gnuplot

DOT language

DOT language

Through a post at open­source pub­lish­ing I stum­bled upon this again. 3 fast hacks:
HTML

HTML

It is pos­si­ble to exam­ine text data with­out con­ver­sion tools. If the data doesn’t look right, you can use a stan­dard text edi­tor to mod­ify it. Spe­cial­ized tools are not required. You don’t need a sep­a­rate edi­tor for each kind of data file. One size fits all.
SVG

SVG

Handy solu­tion to trans­fer com­plete lay­ers from one svg to another. Since inkscape svgs are flat text xml files you can use any ordi­nary word edi­tor to copy/paste data.