63 lines
1.4 KiB
Tcl
63 lines
1.4 KiB
Tcl
#!/usr/bin/tclsh
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#
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# This script appends additional token codes to the end of the
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# parse.h file that lemon generates. These extra token codes are
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# not used by the parser. But they are used by the tokenizer and/or
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# the code generator.
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#
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#
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set in [open [lindex $argv 0] rb]
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set max 0
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while {![eof $in]} {
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set line [gets $in]
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if {[regexp {^#define TK_} $line]} {
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puts $line
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set x [lindex $line 2]
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if {$x>$max} {set max $x}
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}
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}
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close $in
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# The following are the extra token codes to be added. SPACE and
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# ILLEGAL *must* be the last two token codes and they must be in that order.
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#
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set extras {
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ISNOT
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FUNCTION
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COLUMN
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AGG_FUNCTION
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AGG_COLUMN
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UMINUS
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UPLUS
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REGISTER
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VECTOR
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SELECT_COLUMN
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IF_NULL_ROW
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ASTERISK
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SPAN
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END_OF_FILE
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UNCLOSED_STRING
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SPACE
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ILLEGAL
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}
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if {[lrange $extras end-1 end]!="SPACE ILLEGAL"} {
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error "SPACE and ILLEGAL must be the last two token codes and they\
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must be in that order"
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}
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foreach x $extras {
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incr max
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puts [format "#define TK_%-29s %4d" $x $max]
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}
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# Some additional #defines related to token codes.
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#
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puts "\n/* The token codes above must all fit in 8 bits */"
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puts [format "#define %-20s %-6s" TKFLG_MASK 0xff]
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puts "\n/* Flags that can be added to a token code when it is not"
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puts "** being stored in a u8: */"
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foreach {fg val comment} {
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TKFLG_DONTFOLD 0x100 {/* Omit constant folding optimizations */}
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} {
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puts [format "#define %-20s %-6s %s" $fg $val $comment]
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}
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