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db_lex.c (273006) db_lex.c (299970)
1/*-
2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify and distribute this software and its
7 * documentation is hereby granted, provided that both the copyright
8 * notice and this permission notice appear in all copies of the

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27 * Author: David B. Golub, Carnegie Mellon University
28 * Date: 7/90
29 */
30/*
31 * Lexical analyzer.
32 */
33
34#include <sys/cdefs.h>
1/*-
2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify and distribute this software and its
7 * documentation is hereby granted, provided that both the copyright
8 * notice and this permission notice appear in all copies of the

--- 18 unchanged lines hidden (view full) ---

27 * Author: David B. Golub, Carnegie Mellon University
28 * Date: 7/90
29 */
30/*
31 * Lexical analyzer.
32 */
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: head/sys/ddb/db_lex.c 273006 2014-10-12 18:01:52Z pfg $");
35__FBSDID("$FreeBSD: head/sys/ddb/db_lex.c 299970 2016-05-16 19:42:38Z pfg $");
36
37#include <sys/param.h>
38#include <sys/libkern.h>
39
40#include <ddb/ddb.h>
41#include <ddb/db_lex.h>
42
43static char db_line[DB_MAXLINE];

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269 return (tDOTDOT);
270 db_unread_char(c);
271 return (tDOT);
272 case '*':
273 return (tSTAR);
274 case '/':
275 return (tSLASH);
276 case '=':
36
37#include <sys/param.h>
38#include <sys/libkern.h>
39
40#include <ddb/ddb.h>
41#include <ddb/db_lex.h>
42
43static char db_line[DB_MAXLINE];

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269 return (tDOTDOT);
270 db_unread_char(c);
271 return (tDOT);
272 case '*':
273 return (tSTAR);
274 case '/':
275 return (tSLASH);
276 case '=':
277 c = db_read_char();
278 if (c == '=')
279 return (tLOG_EQ);
280 db_unread_char(c);
277 return (tEQ);
278 case '%':
279 return (tPCT);
280 case '#':
281 return (tHASH);
282 case '(':
283 return (tLPAREN);
284 case ')':
285 return (tRPAREN);
286 case ',':
287 return (tCOMMA);
288 case '"':
289 return (tDITTO);
290 case '$':
291 return (tDOLLAR);
292 case '!':
281 return (tEQ);
282 case '%':
283 return (tPCT);
284 case '#':
285 return (tHASH);
286 case '(':
287 return (tLPAREN);
288 case ')':
289 return (tRPAREN);
290 case ',':
291 return (tCOMMA);
292 case '"':
293 return (tDITTO);
294 case '$':
295 return (tDOLLAR);
296 case '!':
297 c = db_read_char();
298 if (c == '='){
299 return (tLOG_NOT_EQ);
300 }
301 db_unread_char(c);
293 return (tEXCL);
294 case ';':
295 return (tSEMI);
302 return (tEXCL);
303 case ';':
304 return (tSEMI);
305 case '&':
306 c = db_read_char();
307 if (c == '&')
308 return (tLOG_AND);
309 db_unread_char(c);
310 return (tBIT_AND);
311 case '|':
312 c = db_read_char();
313 if (c == '|')
314 return (tLOG_OR);
315 db_unread_char(c);
316 return (tBIT_OR);
296 case '<':
297 c = db_read_char();
298 if (c == '<')
299 return (tSHIFT_L);
317 case '<':
318 c = db_read_char();
319 if (c == '<')
320 return (tSHIFT_L);
321 if (c == '=')
322 return (tLESS_EQ);
300 db_unread_char(c);
323 db_unread_char(c);
301 break;
324 return (tLESS);
302 case '>':
303 c = db_read_char();
304 if (c == '>')
305 return (tSHIFT_R);
325 case '>':
326 c = db_read_char();
327 if (c == '>')
328 return (tSHIFT_R);
329 if (c == '=')
330 return (tGREATER_EQ);
306 db_unread_char(c);
331 db_unread_char(c);
307 break;
332 return (tGREATER);
333 case '?':
334 return (tQUESTION);
335 case '~':
336 return (tBIT_NOT);
308 case -1:
309 return (tEOF);
310 }
311 db_printf("Bad character\n");
312 db_flush_lex();
313 return (tEOF);
314}
337 case -1:
338 return (tEOF);
339 }
340 db_printf("Bad character\n");
341 db_flush_lex();
342 return (tEOF);
343}