Editing TeX without TeX
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== Use TeX's power without TeX macros == | == Use TeX's power without TeX macros == | ||
β | With | + | With LuaTeX you have access to most of TeX's capabilities for creating PDF documents. Most of the [http://www.luatex.org/svn/trunk/manual/luatexref-t.pdf LuaTeX reference manual] is about this topic. |
[[Writing_Lua_in_TeX|Remember]] that you can jump into Lua mode from TeX with <tt>\directlua{...Lua code...}</tt>. For example this plain TeX document prints the first digits of the value of pi: <tt>$\pi = \directlua{ tex.print(math.pi)}$ \bye</tt>. You can get the result PDF by running <tt>luatex testfile.tex</tt>. | [[Writing_Lua_in_TeX|Remember]] that you can jump into Lua mode from TeX with <tt>\directlua{...Lua code...}</tt>. For example this plain TeX document prints the first digits of the value of pi: <tt>$\pi = \directlua{ tex.print(math.pi)}$ \bye</tt>. You can get the result PDF by running <tt>luatex testfile.tex</tt>. | ||
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What has happened in detail? We have created a list of glyph and glue nodes and fed those into the line breaking part of TeX which gave us the vbox back. This vbox contains horizontal lists glued together: | What has happened in detail? We have created a list of glyph and glue nodes and fed those into the line breaking part of TeX which gave us the vbox back. This vbox contains horizontal lists glued together: | ||
β | [[File:Paragraph_with_boxes.png | + | [[File:Paragraph_with_boxes.png]] |
The dashed rectangle (vbox) should fit tight to the inner hboxes. It has a small offset just for demonstration purpose. | The dashed rectangle (vbox) should fit tight to the inner hboxes. It has a small offset just for demonstration purpose. |