mirror of https://github.com/texmacs/doc.git
59 lines
2.4 KiB
Tcl
59 lines
2.4 KiB
Tcl
<TeXmacs|1.0.3.10>
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<style|tmdoc>
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<\body>
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<tmdoc-title|<value|scheme> serialization>
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Users may write their own extensions to <TeXmacs> in the <value|scheme>
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extension language. In that context, <TeXmacs> trees are usually
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represented by <value|scheme> expressions. The <value|scheme> syntax was
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designed to be predictable, easy to hand-edit, and expose the complete
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internal structure of the document. For instance, the formula
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(<reference|tm-tree-ex>) is represented by
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<\tm-fragment>
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<verbatim|(with "mode" "math" (concat "x+y+" (frac "1" "2") "+" (sqrt
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"y+z")))>
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</tm-fragment>
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The <value|scheme> representation may also be useful in order to represent
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complex macros with a lot of programmic content. Finally, <value|scheme> is
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the safest format when incorporating <TeXmacs> snippets into emails.
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Indeed, both the standard <TeXmacs> format and the XML serialization may be
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quite sensitive to white-space.
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In order to save or load a document in <value|scheme> format, you may use
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<menu|File|Export|Scheme> <abbr|resp.> <menu|File|Import|Scheme>. Files
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saved in <value|scheme> format can easily be processed by external
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<value|scheme> programs, in the same way as files saved in XML format can
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easily be processed by tools for processing XML, like XSLT.
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In order to copy a document fragment to an email in <value|scheme> format,
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you may use <menu|Edit|Copy to|Scheme>. Similarly, you may paste external
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<value|scheme> fragments into <TeXmacs> using <menu|Edit|Paste
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from|Scheme>. The <value|scheme> format may also used interactively inside
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<value|scheme> sessions or interactive commands. For instance, typing
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<shortcut|(interactive exec-interactive-command)> followed by the interactive command
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<\scheme-fragment>
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(insert '(frac "1" "2"))
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</scheme-fragment>
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inserts the fraction <frac|1|2> at the current cursor position.
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<tmdoc-copyright|2004|Joris van der Hoeven>
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<tmdoc-license|Permission is granted to copy, distribute and/or modify this
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document under the terms of the GNU Free Documentation License, Version 1.1
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or any later version published by the Free Software Foundation; with no
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Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
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Texts. A copy of the license is included in the section entitled "GNU Free
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Documentation License".>
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</body>
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<\initial>
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<\collection>
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<associate|language|english>
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</collection>
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</initial> |