#!/usr/bin/env tclsh
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# Usage: make-c-ext.tcl source.tcl >jim-source.c
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# Converts a Tcl source file into C source suitable
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# for loading as a static extension.
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lassign $argv source
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if {![string match *.tcl $source]} {
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error "Source $source is not a .tcl file"
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}
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# Read the Tcl source and convert to C
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# Note that no lines are removed in order to preserve line numbering
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set sourcelines {}
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set f [open $source]
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while {[gets $f buf] >= 0} {
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# Remove comment lines
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regsub {^[ \t]*#.*$} $buf "" buf
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# Escape quotes and backlashes
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set buf [string map [list \\ \\\\ \" \\"] $buf]
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lappend sourcelines \"$buf\\n\"
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}
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close $f
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lappend lines {/* autogenerated - do not edit */}
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lappend lines {#include <jim.h>}
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set basename [file tail $source]
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set pkgname [file rootname $basename]
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lappend lines "int Jim_${pkgname}Init(Jim_Interp *interp)"
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lappend lines "\{"
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lappend lines "\tif (Jim_PackageProvide(interp, \"$pkgname\", \"1.0\", JIM_ERRMSG)) return JIM_ERR;"
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lappend lines "\treturn Jim_EvalSource(interp, \"$basename\", 1, [join $sourcelines \n]);"
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lappend lines "\}"
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puts [join $lines \n]
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