/
lex.yy.go
284 lines (246 loc) · 4.04 KB
/
lex.yy.go
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/*
* Copyright 2013, Robert Bieber
*
* This file is part of drones.
*
* drones is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* drones is distributed in the hope that it will be useful,
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with drones. If not, see <http://www.gnu.org/licenses/>.
*/
package asm
import (
"strconv"
)
func (l *lexer) Lex(lval *yySymType) int {
c := l.current
if l.empty {
c, l.empty = l.getc(), false
}
yystate0:
l.buf = l.buf[:0]
goto yystart1
goto yystate1 // silence unused label error
yystate1:
c = l.getc()
yystart1:
switch {
default:
goto yyabort
case c == '#':
goto yystate4
case c == '%':
goto yystate6
case c == '-':
goto yystate15
case c == '0':
goto yystate17
case c == '\n':
goto yystate3
case c == '\t' || c == '\r' || c == ' ':
goto yystate2
case c >= '1' && c <= '9':
goto yystate16
case c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z':
goto yystate20
}
yystate2:
c = l.getc()
switch {
default:
goto yyrule1
case c == '\t' || c == '\r' || c == ' ':
goto yystate2
}
yystate3:
c = l.getc()
goto yyrule3
yystate4:
c = l.getc()
switch {
default:
goto yyabort
case c == '\n':
goto yystate5
case c >= '\x01' && c <= '\t' || c >= '\v' && c <= 'ÿ':
goto yystate4
}
yystate5:
c = l.getc()
goto yyrule2
yystate6:
c = l.getc()
switch {
default:
goto yyabort
case c == 'o':
goto yystate7
case c == 'w':
goto yystate10
}
yystate7:
c = l.getc()
switch {
default:
goto yyabort
case c == 'r':
goto yystate8
}
yystate8:
c = l.getc()
switch {
default:
goto yyabort
case c == 'g':
goto yystate9
}
yystate9:
c = l.getc()
goto yyrule4
yystate10:
c = l.getc()
switch {
default:
goto yyabort
case c == 'o':
goto yystate11
}
yystate11:
c = l.getc()
switch {
default:
goto yyabort
case c == 'r':
goto yystate12
}
yystate12:
c = l.getc()
switch {
default:
goto yyabort
case c == 'd':
goto yystate13
}
yystate13:
c = l.getc()
switch {
default:
goto yyabort
case c == 's':
goto yystate14
}
yystate14:
c = l.getc()
goto yyrule5
yystate15:
c = l.getc()
switch {
default:
goto yyabort
case c >= '0' && c <= '9':
goto yystate16
}
yystate16:
c = l.getc()
switch {
default:
goto yyrule6
case c >= '0' && c <= '9':
goto yystate16
}
yystate17:
c = l.getc()
switch {
default:
goto yyrule6
case c == 'x':
goto yystate18
case c >= '0' && c <= '9':
goto yystate16
}
yystate18:
c = l.getc()
switch {
default:
goto yyabort
case c >= '0' && c <= '9' || c >= 'A' && c <= 'F' || c >= 'a' && c <= 'f':
goto yystate19
}
yystate19:
c = l.getc()
switch {
default:
goto yyrule6
case c >= '0' && c <= '9' || c >= 'A' && c <= 'F' || c >= 'a' && c <= 'f':
goto yystate19
}
yystate20:
c = l.getc()
switch {
default:
goto yyrule8
case c == ':':
goto yystate21
case c >= '0' && c <= '9' || c >= 'A' && c <= 'Z' || c == '_' || c >= 'a' && c <= 'z':
goto yystate20
}
yystate21:
c = l.getc()
goto yyrule7
yyrule1: // [ \t\r]+
{
/* ignore */
goto yystate0
}
yyrule2: // #[^\n]*\n
{
/* comment */
return NEWLINE
}
yyrule3: // \n
{
return NEWLINE
}
yyrule4: // %org
{
return ORG
}
yyrule5: // %words
{
return WORDS
}
yyrule6: // -?{DECIMAL}|{HEX}
{
num, err := strconv.ParseInt(string(l.buf), 0, 16)
if err == nil {
lval.num = uint16(num)
return NUM
} else {
return ILLEGAL
}
goto yystate0
}
yyrule7: // {ID}:
{
lval.str = string(l.buf[:len(l.buf)-1])
return LABEL
}
yyrule8: // {ID}
{
lval.str = string(l.buf)
return IDENT
}
panic("unreachable")
goto yyabort // silence unused label error
yyabort: // no lexem recognized
l.empty = true
return int(c)
}